diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/Copyright.html | 76 | ||||
| -rwxr-xr-x | doc/src/Glossary.html | 109 | ||||
| -rwxr-xr-x | doc/src/H5.intro.doc | bin | 325120 -> 0 bytes | |||
| -rwxr-xr-x | doc/src/RM_H5.html | 223 | ||||
| -rw-r--r-- | doc/src/RM_H5A.html | 523 | ||||
| -rw-r--r-- | doc/src/RM_H5D.html | 431 | ||||
| -rw-r--r-- | doc/src/RM_H5E.html | 367 | ||||
| -rw-r--r-- | doc/src/RM_H5F.html | 334 | ||||
| -rw-r--r-- | doc/src/RM_H5Front.html | 98 | ||||
| -rw-r--r-- | doc/src/RM_H5G.html | 744 | ||||
| -rw-r--r-- | doc/src/RM_H5P.html | 1996 | ||||
| -rw-r--r-- | doc/src/RM_H5R.html | 248 | ||||
| -rw-r--r-- | doc/src/RM_H5S.html | 749 | ||||
| -rw-r--r-- | doc/src/RM_H5T.html | 1769 | ||||
| -rw-r--r-- | doc/src/RM_H5Z.html | 129 | ||||
| -rw-r--r-- | doc/src/Tools.html | 265 |
16 files changed, 0 insertions, 8061 deletions
diff --git a/doc/src/Copyright.html b/doc/src/Copyright.html deleted file mode 100644 index f295867..0000000 --- a/doc/src/Copyright.html +++ /dev/null @@ -1,76 +0,0 @@ -<html> -<head><title> -HDF5 Copyright Notice -</title></head> - -<body> - - -<hr> - -<h3>Copyright Notice and Statement for -<br> -NCSA Hierarchical Data Format (HDF) Software Library and Utilities</h3> -<hr> -<p> - - -NCSA Hierarchical Data Format (HDF) Software Library and Utilities -<br> -Copyright 1998 the Board of Trustees of the University of Illinois -<br> -<strong>All rights reserved.</strong> -<p> - -Contributors: National Center for Supercomputing Applications (NCSA) at -the University of Illinois, Lawrence Livermore Nat'l Laboratory (LLNL), -Sandia National Laboratories (SNL), Los Alamos National Laboratory (LANL), -Jean-loup Gailly and Mark Adler (gzip library) -<p> - -Redistribution and use in source and binary forms, with or without -modification, are permitted for any purpose (including commercial purposes) -provided that the following conditions are met: -<p> - -<ol> -<li>Redistributions of source code must retain the above copyright notice, -this list of conditions and the following disclaimer. - -<li>Redistributions in binary form must reproduce the above copyright -notice, this list of conditions and the following disclaimer in the -documentation and/or materials provided with the distribution. - -<li>In addition, redistributions of modified forms of the source or binary -code must carry prominent notices stating that the original code was -changed and the date of the change. - -<li>All publications or advertising materials mentioning features or use of -this software must acknowledge that it was developed by the National Center -for Supercomputing Applications at the University of Illinois, and credit -the Contributors. - -<li>Neither the name of the University nor the names of the Contributors may -be used to endorse or promote products derived from this software without -specific prior written permission from the University or the Contributors. - -<li>THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND THE CONTRIBUTORS "AS IS" -WITH NO WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED. In no event -shall the University or the Contributors be liable for any damages suffered -by the users arising out of the use of this software, even if advised of -the possibility of such damage. - -</ol> - - -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 8 September 1998 - -</body> -</html> - diff --git a/doc/src/Glossary.html b/doc/src/Glossary.html deleted file mode 100755 index 5b04f9c..0000000 --- a/doc/src/Glossary.html +++ /dev/null @@ -1,109 +0,0 @@ -<html><head><title> -HDF5 Draft Glossary -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -Glossary -</center> -<hr> - -<center> -<h1>HDF5 Glossary</h1> -</center> - -<i>(<b>Under construction!</b> - This is the bare beginning of a Glossary to accompany the HDF5 - documentation; it is by no means complete.)</i> - -<ul> - <li><a href="#Glossary-Basic">basic data types</a> - <li><a href="#Glossary-Complex">complex data types</a> - <li>data types -<ul> - <li><a href="#Glossary-Basic">basic data types</a> - <li><a href="#Glossary-Complex">complex data types</a> - <li><a href="#Glossary-DiskIO">disk I/O data types</a> -</ul> - <li><a href="#Glossary-DiskIO">disk I/O data types</a> -</ul> - - -<hr> - -<a name="Glossary-Basic">basic data types:</a> -<ul> - <li><em>(Some data types may change substantially en route to - Release 1.2.)</em> - <li>char - 8-bit character (only for ASCII information) - <li>int8 - 8-bit signed integer - <li>uint8 - 8-bit unsigned integer - <li>int16 - 16-bit signed integer - <li>uint16 - 16-bit unsigned integer - <li>int32 - 32-bit signed integer - <li>uint32 - 32-bit unsigned integer - <li>intn - "native" signed integer - <li>uintn - "native" unsigned integer - <li>int64 - 64-bit signed integer (new) - <li>uint64 - 64-bit unsigned integer (new) - <li>float32 - 32-bit IEEE float - <li>float64 - 64-bit IEEE float -</ul> - -<a name="Glossary-Complex">Complex data types:</a> -<ul> - <li><em>(Some data types may change substantially en route to - Release 1.2.)</em> - <li>hid_t - 32-bit unsigned integer used as ID for memory objects - <li>hoid_t - 32-bit unsigned integer (currently) used as ID for disk-based - objects - <li>hbool_t - boolean to indicate true/false/error codes from functions - <li>herr_t - 32-bit integer to indicate succeed/fail codes from functions -</ul> - -<a name="Glossary-DiskIO">disk I/O data types:</a> -<ul> - <li><em>(Some data types may change substantially en route to - Release 1.2.)</em> - <li>hoff_t - (64-bit?) offset on disk in bytes - <li>hlen_t - (64-bit?) length on disk in bytes -</ul> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -Glossary -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 14 July 1998 - -</body> -</html> diff --git a/doc/src/H5.intro.doc b/doc/src/H5.intro.doc Binary files differdeleted file mode 100755 index 6dc7214..0000000 --- a/doc/src/H5.intro.doc +++ /dev/null diff --git a/doc/src/RM_H5.html b/doc/src/RM_H5.html deleted file mode 100755 index ad2cb8d..0000000 --- a/doc/src/RM_H5.html +++ /dev/null @@ -1,223 +0,0 @@ -<html> -<head><title> -HDF5/H5 Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -H5 -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5: General Library Functions</h1> -</center> - -These functions serve general-purpose needs of the HDF5 library -and it users. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Library-Open">H5open</a> - <li><a href="#Library-Close">H5close</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Library-Version">H5get_libversion</a> - <li><a href="#Library-VersCheck">H5check_version</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Library-DontAtExit">H5dont_atexit</a> -</ul> -</td></tr> -</table> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Library-Open">H5open</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5open</code>(<em>void</em>) -<dt><strong>Purpose:</strong> - <dd>Flushes all data to disk, closes file identifiers, and cleans up memory. -<dt><strong>Description:</strong> - <dd><code>H5open</code> initialize the library. This function is - normally called automatically, but if you find that an - HDF5 library function is failing inexplicably, try calling - this function first. -<dt><strong>Parameters:</strong> - <dl> - <dt>None. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Library-Close">H5close</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5close</code>(<em>void</em>) -<dt><strong>Purpose:</strong> - <dd>Flushes all data to disk, closes file identifiers, and cleans up memory. -<dt><strong>Description:</strong> - <dd><code>H5close</code> flushes all data to disk, - closes all file identifiers, and cleans up all memory used by - the library. This function is generall called when the - application calls <code>exit</code>, but may be called earlier - in event of an emergency shutdown or out of desire to free all - resources used by the HDF5 library. -<dt><strong>Parameters:</strong> - <dl> - <dt>None. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Library-DontAtExit">H5dont_atexit</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5dont_atexit</code>(<em>void</em>) -<dt><strong>Purpose:</strong> - <dd>Instructs library not to install <code>atexit</code> cleanup routine. -<dt><strong>Description:</strong> - <dd><code>H5dont_atexit</code> indicates to the library that an - <code>atexit()</code> cleanup routine should not be installed. - The major purpose for this is in situations where the - library is dynamically linked into an application and is - un-linked from the application before <code>exit()</code> gets - called. In those situations, a routine installed with - <code>atexit()</code> would jump to a routine which was - no longer in memory, causing errors. - <p> - In order to be effective, this routine <em>must</em> be called - before any other HDF function calls, and must be called each - time the library is loaded/linked into the application - (the first time and after it's been un-loaded). -<dt><strong>Parameters:</strong> - <dl> - <dt>None. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Library-Version">H5get_libversion</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5get_libversion</code>(<em>unsigned *</em><code>majnum</code>, - <em>unsigned *</em><code>minnum</code>, - <em>unsigned *</em><code>relnum</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the HDF library release number. -<dt><strong>Description:</strong> - <dd><code>H5get_libversion</code> retrieves the major, minor, and release - numbers of the version of the HDF library which is linked to - the application. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>unsigned *</em><code>majnum</code> - <dd>The major version of the library. - <dt><em>unsigned *</em><code>minnum</code> - <dd>The minor version of the library. - <dt><em>unsigned *</em><code>relnum</code> - <dd>The release number of the library. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Library-VersCheck">H5check_version</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5check_version</code>(<em>unsigned</em> <code>majnum</code>, - <em>unsigned</em> <code>minnum</code>, - <em>unsigned</em> <code>relnum</code> - ) -<dt><strong>Purpose:</strong> - <dd> -<dt><strong>Description:</strong> - <dd><code>H5check_version</code> verifies that the arguments match the - version numbers compiled into the library. This function is intended - to be called from user to verify that the versions of header files - compiled into the application match the version of the HDF5 library. - <p> - Due to the risks of data corruption or segmentation faults, - <code>H5check_version</code> causes the application to abort if the - version numbers do not match. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>unsigned *</em><code>majnum</code> - <dd>The major version of the library. - <dt><em>unsigned *</em><code>minnum</code> - <dd>The minor version of the library. - <dt><em>unsigned *</em><code>relnum</code> - <dd>The release number of the library. - <dt><em>unsigned *</em><code>patnum</code> - <dd>The patch number of the library. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful. - Upon failure, this function causes the application to abort. -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -H5 -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 2 September 1998 - -</body> -</html> diff --git a/doc/src/RM_H5A.html b/doc/src/RM_H5A.html deleted file mode 100644 index bda4333..0000000 --- a/doc/src/RM_H5A.html +++ /dev/null @@ -1,523 +0,0 @@ -<html> -<head><title> -HDF5/H5A Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -H5A -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5A: Attribute Interface</h1> -</center> - -<h2>Attribute API Functions</h2> - -These functions create and manipulate attributes -and information about attributes. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Annot-Create">H5Acreate</a> - <li><a href="#Annot-Write">H5Awrite</a> - <li><a href="#Annot-Read">H5Aread</a> - <li><a href="#Annot-Close">H5Aclose</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Annot-GetName">H5Aget_name</a> - <li><a href="#Annot-OpenName">H5Aopen_name</a> - <li><a href="#Annot-OpenIdx">H5Aopen_idx</a> - <li><a href="#Annot-GetSpace">H5Aget_space</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Annot-GetType">H5Aget_type</a> - <li><a href="#Annot-NumAttrs">H5Aget_num_attrs</a> - <li><a href="#Annot-Iterate">H5Aiterate</a> - <li><a href="#Annot-Delete">H5Adelete</a> -</ul> -</td></tr> -</table> - -<p> -The Attribute interface, H5A, is primarily designed to easily allow -small datasets to be attached to primary datasets as metadata information. -Additional goals for the H5A interface include keeping storage requirement -for each attribute to a minimum and easily sharing attributes among -datasets. -<p> -Because attributes are intended to be small objects, large datasets -intended as additional information for a primary dataset should be -stored as supplemental datasets in a group with the primary dataset. -Attributes can then be attached to the group containing everything -to indicate a particular type of dataset with supplemental datasets -is located in the group. How small is "small" is not defined by the -library and is up to the user's interpretation. -<p> -See <a href="Attributes.html"><cite>Attributes</cite></a> in the -<a href="H5.user.html"><cite>HDF5 User's Guide</cite></a> for further information. - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-Create">H5Acreate</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Acreate</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code>, - <em>hid_t</em> <code>type_id</code>, - <em>hid_t</em> <code>space_id</code>, - <em>hid_t</em> <code>create_plist</code> - ) -<dt><strong>Purpose:</strong> - <dd>Creates a dataset as an attribute of another group, dataset, - or named datatype. -<dt><strong>Description:</strong> - <dd><code>H5Acreate</code> creates an attribute which is attached - to the object specified with <code>loc_id</code>. - <code>loc_id</code> is an identifier of a group, dataset, - or named datatype. The name specified with <code>name</code> - for each attribute for an object must be unique for that object. - The datatype and dataspace identifiers of the attribute, - <code>type_id</code> and <code>space_id</code>, respectively, - are created with the H5T and H5S interfaces, respectively. - Currently only simple dataspaces are allowed for attribute - dataspaces. The <code>create_plist_id</code> property list - is currently unused, but will be used int the future for optional - properties of attributes. The attribute identifier returned from - this function must be released with <code>H5Aclose</code> or - resource leaks will develop. Attempting to create an attribute - with the same name as an already existing attribute will fail, - leaving the pre-existing attribute in place. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Object (dataset, group, or named datatype) to be attached to. - <dt><em>const char *</em><code>name</code> - <dd>IN: Name of attribute to create. - <dt><em>hid_t</em> <code>type_id</code> - <dd>IN: Identifier of datatype for attribute. - <dt><em>hid_t</em> <code>space_id</code> - <dd>IN: Identifier of dataspace for attribute. - <dt><em>hid_t</em> <code>create_plist</code> - <dd>IN: Identifier of creation property list (currently not used). - </dl> -<dt><strong>Returns:</strong> - <dd>Returns an attribute identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-OpenName">H5Aopen_name</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Aopen_name</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code> - ) -<dt><strong>Purpose:</strong> - <dd> Opens an attribute specified by name. -<dt><strong>Description:</strong> - <dd><code>H5Aopen_name</code> opens an attribute specified by - its name, <code>name</code>, which is attached to the - object specified with <code>loc_id</code>. - The location object may be either a group, dataset, or - named datatype, which may have any sort of attribute. - The attribute identifier returned from this function must - be released with <code>H5Aclose</code> or resource leaks - will develop. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of a group, dataset, or named datatype - atttribute to be attached to. - <dt><em>const char *</em><code>name</code> - <dd>IN: Attribute name. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns attribute identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-OpenIdx">H5Aopen_idx</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Aopen_idx</code>(<em>hid_t</em> <code>loc_id</code>, - <em>unsigned int</em> <code>idx</code> - ) -<dt><strong>Purpose:</strong> - <dd>Opens the attribute specified by its index. -<dt><strong>Description:</strong> - <dd><code>H5Aopen_idx</code> opens an attribute which is attached - to the object specified with <code>loc_id</code>. - The location object may be either a group, dataset, or - named datatype, all of which may have any sort of attribute. - The attribute specified by the index, <code>idx</code>, - indicates the attribute to access. - The value of <code>idx</code> is a 0-based, non-negative integer. - The attribute identifier returned from this function must be - released with <code>H5Aclose</code> or resource leaks will develop. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of the group, dataset, or named datatype - attribute to be attached to. - <dt><em>unsigned int</em> <code>idx</code> - <dd>IN: Index of the attribute to open. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns attribute identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-Write">H5Awrite</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Awrite</code>(<em>hid_t</em> <code>attr_id</code>, - <em>hid_t</em> <code>mem_type_id</code>, - <em>void *</em><code>buf</code> - ) -<dt><strong>Purpose:</strong> - <dd>Writes data to an attribute. -<dt><strong>Description:</strong> - <dd><code>H5Awrite</code> writes an attribute, specified with - <code>attr_id</code>. The attribute's memory datatype - is specified with <code>mem_type_id</code>. The entire - attribute is written from <code>buf</code> to the file. - <p> - Datatype conversion takes place at the time of a read or write - and is automatic. See the - <a href="Datatypes.html#Datatypes-DataConversion">Data Conversion</a> - section of <cite>The Data Type Interface (H5T)</cite> in the - <cite>HDF5 User's Guide</cite> for a discussion of - data conversion, including the range of conversions currently - supported by the HDF5 libraries. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>attr_id</code> - <dd>IN: Identifier of an attribute to write. - <dt><em>hid_t</em> <code>mem_type_id</code> - <dd>IN: Identifier of the attribute datatype (in memory). - <dt><em>void *</em><code>buf</code> - <dd>IN: Data to be written. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-Read">H5Aread</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Aread</code>(<em>hid_t</em> <code>attr_id</code>, - <em>hid_t</em> <code>mem_type_id</code>, - <em>void *</em><code>buf</code> - ) -<dt><strong>Purpose:</strong> - <dd>Reads an attribute. -<dt><strong>Description:</strong> - <dd><code>H5Aread</code> reads an attribute, specified with - <code>attr_id</code>. The attribute's memory datatype - is specified with <code>mem_type_id</code>. The entire - attribute is read into <code>buf</code> from the file. - <p> - Datatype conversion takes place at the time of a read or write - and is automatic. See the - <a href="Datatypes.html#Datatypes-DataConversion">Data Conversion</a> - section of <cite>The Data Type Interface (H5T)</cite> in the - <cite>HDF5 User's Guide</cite> for a discussion of - data conversion, including the range of conversions currently - supported by the HDF5 libraries. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>attr_id</code> - <dd>IN: Identifier of an attribute to read. - <dt><em>hid_t</em> <code>mem_type_id</code> - <dd>IN: Identifier of the attribute datatype (in memory). - <dt><em>void *</em><code>buf</code> - <dd>IN: Buffer for data to be read. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-GetSpace">H5Aget_space</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Aget_space</code>(<em>hid_t</em> <code>attr_id</code>) -<dt><strong>Purpose:</strong> - <dd>Gets a copy of the dataspace for an attribute. -<dt><strong>Description:</strong> - <dd><code>H5Aget_space</code> retrieves a copy of the dataspace - for an attribute. The dataspace identifier returned from - this function must be released with <code>H5Sclose</code> - or resource leaks will develop. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>attr_id</code> - <dd>IN: Identifier of an attribute. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns attribute dataspace identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-GetType">H5Aget_type</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Aget_type</code>(<em>hid_t</em> <code>attr_id</code>) -<dt><strong>Purpose:</strong> - <dd>Gets an attribute datatype. -<dt><strong>Description:</strong> - <dd><code>H5Aget_type</code> retrieves a copy of the datatype - for an attribute. - <p> - The datatype is reopened if it is a named type before returning - it to the application. The datatypes returned by this function - are always read-only. If an error occurs when atomizing the - return datatype, then the datatype is closed. - <p> - The datatype identifier returned from this function must be - released with <code>H5Tclose</code> or resource leaks will develop. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>attr_id</code> - <dd>IN: Identifier of an attribute. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a datatype identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-GetName">H5Aget_name</a> -<dt><strong>Signature:</strong> - <dd><em>size_t</em> <code>H5Aget_name</code>(<em>hid_t</em> <code>attr_id</code>, - <em>char *</em><code>buf</code>, - <em>size_t</em> <code>buf_size</code> - ) -<dt><strong>Purpose:</strong> - <dd>Gets an attribute name. -<dt><strong>Description:</strong> - <dd><code>H5Aget_name</code> retrieves the name of an attribute - specified by the identifier, <code>attr_id</code>. - Up to <code>buf_size</code> characters are stored in - <code>buf</code> followed by a <code>\0</code> string - terminator. If the name of the attribute is longer than - <code>buf_size</code> -1, the string terminator is stored in the - last position of the buffer to properly terminate the string. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>attr_id</code> - <dd>IN: Identifier of the attribute. - <dt><em>char *</em><code>buf</code> - <dd>IN: Buffer to store name in. - <dt><em>size_t</em> <code>buf_size</code> - <dd>IN: The size of the buffer to store the name in. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the length of the attribute's name, which may be - longer than <code>buf_size</code>, if successful. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-NumAttrs">H5Aget_num_attrs</a> -<dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Aget_num_attrs</code>(<em>hid_t</em> <code>loc_id</code>) -<dt><strong>Purpose:</strong> - <dd>Determines the number of attributes attached to an object. -<dt><strong>Description:</strong> - <dd><code>H5Aget_num_attrs</code> returns the number of attributes - attached to the object specified by its identifier, - <code>loc_id</code>. - The object can be a group, dataset, or named datatype. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of a group, dataset, or named datatype. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the number of attributes if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-Iterate">H5Aiterate</a> -<dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Aiterate</code>(<em>hid_t</em> <code>loc_id</code>, - <em>unsigned *</em> <code>idx</code>, - <em>H5A_operator_t</em> <code>op</code>, - <em>void *</em><code>op_data</code> - ) -<dt><strong>Purpose:</strong> - <dd>Calls a user's function for each attribute on an object. -<dt><strong>Description:</strong> - <dd><code>H5Aiterate</code> iterates over the attributes of - the object specified by its identifier, <code>loc_id</code>. - The object can be a group, dataset, or named datatype. - For each attribute of the object, the <code>op_data</code> - and some additional information specified below are passed - to the operator function <code>op</code>. - The iteration begins with the attribute specified by its - index, <code>idx</code>; the index for the next attribute - to be processed by the operator, <code>op</code>, is - returned in <code>idx</code>. - If <code>idx</code> is the null pointer, then all attributes - are processed. - <p> - The prototype for <code>H5A_operator_t</code> is: <br> - <code>typedef herr_t (*H5A_operator_t)(hid_t <em>loc_id</em>, - const char *<em>attr_name</em>, - void *<em>operator_data</em>); - </code> - <p> - The operation receives the identifier for the group, dataset - or named datatype being iterated over, <code>loc_id</code>, the - name of the current attribute about the object, <code>attr_name</code>, - and the pointer to the operator data passed in to <code>H5Aiterate</code>, - <code>op_data</code>. The return values from an operator are: - <ul> - <li>Zero causes the iterator to continue, returning zero when all - attributes have been processed. - <li>Positive causes the iterator to immediately return that positive - value, indicating short-circuit success. The iterator can be - restarted at the next attribute. - <li>Negative causes the iterator to immediately return that value, - indicating failure. The iterator can be restarted at the next - attribute. - </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of a group, dataset or named datatype. - <dt><em>unsigned *</em> <code>idx</code> - <dd>IN/OUT: Starting (IN) and ending (OUT) attribute index. - <dt><em>H5A_operator_t</em> <code>op</code> - <dd>IN: User's function to pass each attribute to - <dt><em>void *</em><code>op_data</code> - <dd>IN/OUT: User's data to pass through to iterator operator function - </dl> -<dt><strong>Returns:</strong> - <dd>If successful, returns the return value of the last operator - if it was non-zero, or zero if all attributes were processed. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-Delete">H5Adelete</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Adelete</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code> - ) -<dt><strong>Purpose:</strong> - <dd>Deletes an attribute from a location. -<dt><strong>Description:</strong> - <dd><code>H5Adelete</code> removes the attribute specified by its - name, <code>name</code>, from a dataset, group, or named datatype. - This function should not be used when attribute identifiers are - open on <code>loc_id</code> as it may cause the internal indexes - of the attributes to change and future writes to the open - attributes to produce incorrect results. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of the dataset, group, or named datatype - to have the attribute deleted from. - <dt><em>const char *</em><code>name</code> - <dd>IN: Name of the attribute to delete. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Annot-Close">H5Aclose</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Aclose</code>(<em>hid_t</em> <code>attr_id</code>) -<dt><strong>Purpose:</strong> - <dd>Closes the specified attribute. -<dt><strong>Description:</strong> - <dd><code>H5Aclose</code> terminates access to the attribute - specified by its identifier, <code>attr_id</code>. - Further use of the attribute identifier will result in - undefined behavior. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>attr_id</code> - <dd>IN: Attribute to release access to. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -H5A -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 1 September 1998 - -</body> -</html> diff --git a/doc/src/RM_H5D.html b/doc/src/RM_H5D.html deleted file mode 100644 index bb2c4dc..0000000 --- a/doc/src/RM_H5D.html +++ /dev/null @@ -1,431 +0,0 @@ -<html> -<head><title> -HDF5/H5D Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -H5D -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5D: Datasets Interface</h1> -</center> - -<h2>Dataset Object API Functions</h2> - -These functions create and manipulate dataset objects, -and set and retrieve their constant or persistent properties. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Dataset-Create">H5Dcreate</a> - <li><a href="#Dataset-Open">H5Dopen</a> - <li><a href="#Dataset-GetSpace">H5Dget_space</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Dataset-GetType">H5Dget_type</a> - <li><a href="#Dataset-GetCreatePlist">H5Dget_create_plist</a> - <li><a href="#Dataset-Read">H5Dread</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Dataset-Write">H5Dwrite</a> - <li><a href="#Dataset-Extend">H5Dextend</a> - <li><a href="#Dataset-Close">H5Dclose</a> -</ul> -</td></tr> -</table> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-Create">H5Dcreate</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Dcreate</code>(<em>hid_t </em><code>loc_id</code>, - <em>const char *</em><code>name</code>, - <em>hid_t</em><code>type_id</code>, - <em>hid_t</em><code>space_id</code>, - <em>hid_t</em><code>create_plist_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Creates a dataset at the specified location. -<dt><strong>Description:</strong> - <dd><code>H5Dcreate</code> creates a data set with a name, - <code>name</code>, in the file or in the group specified by - the identifier <code>loc_id</code>. - The dataset has the datatype and dataspace identified by - <code>type_id</code> and <code>space_id</code>, respectively. - The specified datatype and dataspace are the datatype and - dataspace of the dataset as it will exist in the file, - which may be different than in application memory. - Dataset creation properties are specified by the argument - <code>create_plist_id</code>. - <p> - <code>create_plist_id</code> is a <code>H5P_DATASET_CREATE</code> - property list created with <code>H5Pcreate()</code> and - initialized with the various functions described above. - <code>H5Dcreate()</code> returns a dataset identifier for success - or negative for failure. The identifier should eventually be - closed by calling <code>H5Dclose()</code> to release resources - it uses. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>Identifier of the file or group to create the dataset within. - <dt><em>const char *</em> <code>name</code> - <dd>The name of the dataset to create. - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of the datatype to use when creating the dataset. - <dt><em>hid_t</em> <code>space_id</code> - <dd>Identifier of the dataspace to use when creating the dataset. - <dt><em>hid_t</em> <code>create_plist_id</code> - <dd>Identifier of the set creation property list. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataset identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-Open">H5Dopen</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Dopen</code>(<em>hid_t </em><code>loc_id</code>, - <em>const char *</em><code>name</code> - ) -<dt><strong>Purpose:</strong> - <dd>Opens an existing dataset. -<dt><strong>Description:</strong> - <dd><code>H5Dopen</code> opens an existing dataset for access in the file - or group specified in <code>loc_id</code>. <code>name</code> is - a dataset name and is used to identify the dataset in the file. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>Identifier of the dataset to open or the file or group - to access the dataset within. - <dt><em>const char *</em> <code>name</code> - <dd>The name of the dataset to access. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataset identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-GetSpace">H5Dget_space</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Dget_space</code>(<em>hid_t </em><code>dataset_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns an identifier for a copy of the dataspace for a dataset. -<dt><strong>Description:</strong> - <dd><code>H5Dget_space</code> returns an identifier for a copy of the - dataspace for a dataset. - The dataspace identifier should be released with the - <code>H5Sclose()</code> function. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dataset_id</code> - <dd>Identifier of the dataset to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataspace identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-GetType">H5Dget_type</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Dget_type</code>(<em>hid_t </em><code>dataset_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns an identifier for a copy of the datatype for a dataset. -<dt><strong>Description:</strong> - <dd><code>H5Dget_type</code> returns an identifier for a copy of the - datatype for a dataset. - The datatype should be released with the <code>H5Tclose()</code> function. - <p> - If a dataset has a named datatype, then an identifier to the - opened datatype is returned. - Otherwise, the returned datatype is read-only. - If atomization of the datatype fails, then the datatype is closed. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dataset_id</code> - <dd>Identifier of the dataset to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a datatype identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-GetCreatePlist">H5Dget_create_plist</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Dget_create_plist</code>(<em>hid_t </em><code>dataset_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns an identifier for a copy of the - dataset creation property list for a dataset. -<dt><strong>Description:</strong> - <dd><code>H5Dget_create_plist</code> returns an identifier for a - copy of the dataset creation property list for a dataset. - The creation property list identifier should be released with - the <code>H5Pclose()</code> function. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dataset_id</code> - <dd>Identifier of the dataset to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataset creation property list identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-Read">H5Dread</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Dread</code>(<em>hid_t </em><code>dataset_id</code>, - <em>hid_t</em> <code>mem_type_id</code>, - <em>hid_t</em> <code>mem_space_id</code>, - <em>hid_t</em> <code>file_space_id</code>, - <em>hid_t</em> <code>xfer_plist_id</code>, - <em>void *</em> <code>buf</code> - ) -<dt><strong>Purpose:</strong> - <dd>Reads raw data from the specified dataset into <code>buf</code>, - converting from file datatype and dataspace to - memory datatype and dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Dread</code> reads a (partial) dataset, specified by its - identifier <code>dataset_id</code>, from the file into the - application memory buffer <code>buf</code>. - Data transfer properties are defined by the argument - <code>xfer_plist_id</code>. - The memory datatype of the (partial) dataset is identified by - the identifier <code>mem_type_id</code>. - The part of the dataset to read is defined by - <code>mem_space_id</code> and <code>file_space_id</code>. - <p> - <code>file_space_id</code> can be the constant <code>H5S_ALL</code>, - which indicates that the entire file data space is to be referenced. - <p> - <code>mem_space_id</code> can be the constant <code>H5S_ALL</code>, - in which case the memory data space is the same as the file data space - defined when the dataset was created. - <p> - The number of elements in the memory data space must match - the number of elements in the file data space. - <p> - <code>xfer_plist_id</code> can be the constant <code>H5P_DEFAULT</code>, - in which case the default data transfer properties are used. - - <p> - Datatype conversion takes place at the time of a read or write - and is automatic. See the - <a href="Datatypes.html#Datatypes-DataConversion">Data Conversion</a> - section of <cite>The Data Type Interface (H5T)</cite> in the - <cite>HDF5 User's Guide</cite> for a discussion of - data conversion, including the range of conversions currently - supported by the HDF5 libraries. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dataset_id</code> - <dd>Identifier of the dataset read from. - <dt><em>hid_t</em> <code>mem_type_id</code> - <dd>Identifier of the memory datatype. - <dt><em>hid_t</em> <code>mem_space_id</code> - <dd>Identifier of the memory dataspace. - <dt><em>hid_t</em> <code>file_space_id</code> - <dd>Identifier of the dataset's dataspace in the file. - <dt><em>hid_t</em> <code>xfer_plist_id</code> - <dd>Identifier of a transfer property list for this I/O operation. - <dt><em>void *</em> <code>buf</code> - <dd>Buffer to store data read from the file. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-Write">H5Dwrite</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Dwrite</code>(<em>hid_t </em><code>dataset_id</code>, - <em>hid_t</em> <code>mem_type_id</code>, - <em>hid_t</em> <code>mem_space_id</code>, - <em>hid_t</em> <code>file_space_id</code>, - <em>hid_t</em> <code>xfer_plist_id</code>, - <em>const void *</em> <code>buf</code> - ) -<dt><strong>Purpose:</strong> - <dd>Writes raw data from an application buffer <code>buf</code> to - the specified dataset, converting from - memory datatype and dataspace to file datatype and dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Dwrite</code> writes a (partial) dataset, specified by its - identifier <code>dataset_id</code>, from the - application memory buffer <code>buf</code> into the file. - Data transfer properties are defined by the argument - <code>xfer_plist_id</code>. - The memory datatype of the (partial) dataset is identified by - the identifier <code>mem_type_id</code>. - The part of the dataset to write is defined by - <code>mem_space_id</code> and <code>file_space_id</code>. - <p> - <code>file_space_id</code> can be the constant <code>H5S_ALL</code>. - which indicates that the entire file data space is to be referenced. - <p> - <code>mem_space_id</code> can be the constant <code>H5S_ALL</code>, - in which case the memory data space is the same as the file data space - defined when the dataset was created. - <p> - The number of elements in the memory data space must match - the number of elements in the file data space. - <p> - <code>xfer_plist_id</code> can be the constant <code>H5P_DEFAULT</code>. - in which case the default data transfer properties are used. - <p> - Writing to an external dataset will fail if the HDF5 file is - not open for writing. - <p> - Datatype conversion takes place at the time of a read or write - and is automatic. See the - <a href="Datatypes.html#Datatypes-DataConversion">Data Conversion</a> - section of <cite>The Data Type Interface (H5T)</cite> in the - <cite>HDF5 User's Guide</cite> for a discussion of - data conversion, including the range of conversions currently - supported by the HDF5 libraries. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dataset_id</code> - <dd>Identifier of the dataset read from. - <dt><em>hid_t</em> <code>mem_type_id</code> - <dd>Identifier of the memory datatype. - <dt><em>hid_t</em> <code>mem_space_id</code> - <dd>Identifier of the memory dataspace. - <dt><em>hid_t</em> <code>file_space_id</code> - <dd>Identifier of the dataset's dataspace in the file. - <dt><em>hid_t</em> <code>xfer_plist_id</code> - <dd>Identifier of a transfer property list for this I/O operation. - <dt><em>const void *</em> <code>buf</code> - <dd>Buffer with data to be written to the file. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-Extend">H5Dextend</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Dextend</code>(<em>hid_t </em><code>dataset_id</code>, - <em>const hsize_t *</em> <code>size</code> - ) -<dt><strong>Purpose:</strong> - <dd>Extends a dataset with unlimited dimension. -<dt><strong>Description:</strong> - <dd><code>H5Dextend</code> verifies that the dataset is at least of size - <code>size</code>. - The dimensionality of <code>size</code> is the same as that of - the dataspace of the dataset being changed. - This function cannot be applied to a dataset with fixed dimensions. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dataset_id</code> - <dd>Identifier of the dataset. - <dt><em>const hsize_t *</em> <code>size</code> - <dd>Array containing the new magnitude of each dimension. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataset-Close">H5Dclose</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Dclose</code>(<em>hid_t </em><code>dataset_id</code> - ) -<dt><strong>Purpose:</strong> - <dd> -<dt><strong>Description:</strong> - <dd><code>H5Dclose</code> ends access to a dataset specified by - <code>dataset_id</code> and releases resources used by it. - Further use of the dataset identifier is illegal in calls to - the dataset API. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dataset_id</code> - <dd>Identifier of the dataset to finish access to. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -H5D -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 12 August 1998 - -</body> -</html> diff --git a/doc/src/RM_H5E.html b/doc/src/RM_H5E.html deleted file mode 100644 index d29380e..0000000 --- a/doc/src/RM_H5E.html +++ /dev/null @@ -1,367 +0,0 @@ -<html> -<head><title> -HDF5/H5E Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -H5E -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5E: Error Interface</h1> -</center> - -<h2>Error API Functions</h2> - -These functions provide error handling capabilities in the HDF5 environment. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Error-SetAuto">H5Eset_auto</a> - <li><a href="#Error-GetAuto">H5Eget_auto</a> - <li><a href="#Error-Clear">H5Eclear</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Error-Print">H5Eprint</a> - <li><a href="#Error-Walk">H5Ewalk</a> - <li><a href="#Error-WalkCB">H5Ewalk_cb</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Error-GetMajor">H5Eget_major</a> - <li><a href="#Error-GetMinor">H5Eget_minor</a> -</ul> -</td></tr> -</table> - -<p> -The Error interface provides error handling in the form of a stack. -The <code>FUNC_ENTER()</code> macro clears the error stack whenever -an interface function is entered. -When an error is detected, an entry is pushed onto the stack. -As the functions unwind, additional entries are pushed onto the stack. -The API function will return some indication that an error occurred and -the application can print the error stack. -<p> -Certain API functions in the H5E package, such as <code>H5Eprint()</code>, -do not clear the error stack. Otherwise, any function which -does not have an underscore immediately after the package name -will clear the error stack. For instance, <code>H5Fopen()</code> -clears the error stack while <code>H5F_open()</code> does not. -<p> -An error stack has a fixed maximum size. -If this size is exceeded then the stack will be truncated and only the -inner-most functions will have entries on the stack. -This is expected to be a rare condition. -<p> -Each thread has its own error stack, but since -multi-threading has not been added to the library yet, this -package maintains a single error stack. The error stack is -statically allocated to reduce the complexity of handling -errors within the H5E package. - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-SetAuto">H5Eset_auto</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Eset_auto</code>(<em>H5E_auto_t</em> <code>func</code>, - <em>void *</em><code>client_data</code> - ) -<dt><strong>Purpose:</strong> - <dd>Turns automatic error printing on or off. -<dt><strong>Description:</strong> - <dd><code>H5Eset_auto</code> turns on or off automatic printing of - errors. When turned on (non-null <code>func</code> pointer), - any API function which returns an error indication will - first call <code>func</code>, passing it <code>client_data</code> - as an argument. - <p> - When the library is first initialized the auto printing function - is set to <code>H5Eprint()</code> (cast appropriately) and - <code>client_data</code> is the standard error stream pointer, - <code>stderr</code>. - <p> - Automatic stack traversal is always in the - <code>H5E_WALK_DOWNWARD</code> direction. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5E_auto_t</em> <code>func</code> - <dd>Function to be called upon an error condition. - <dt><em>void *</em><code>client_data</code> - <dd>Data passed to the error function. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-GetAuto">H5Eget_auto</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Eget_auto</code>(<em>H5E_auto_t *</em> <code>func</code>, - <em>void **</em><code>client_data</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the current settings for the automatic error stack - traversal function and its data. -<dt><strong>Description:</strong> - <dd><code>H5Eget_auto</code> returns the current settings for the - automatic error stack traversal function, <code>func</code>, - and its data, <code>client_data</code>. Either (or both) - arguments may be null in which case the value is not returned. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5E_auto_t *</em> <code>func</code> - <dd>Current setting for the function to be called upon an - error condition. - <dt><em>void **</em><code>client_data</code> - <dd>Current setting for the data passed to the error function. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-Clear">H5Eclear</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Eclear</code>(<code>void</code>) -<dt><strong>Purpose:</strong> - <dd>Clears the error stack for the current thread. -<dt><strong>Description:</strong> - <dd><code>H5Eclear</code> clears the error stack for the current thread. - <p> - The stack is also cleared whenever an API function is called, - with certain exceptions (for instance, <code>H5Eprint()</code>). - <p> - <code>H5Eclear</code> can fail if there are problems initializing - the library. -<dt><strong>Parameters:</strong> - <dl> - <dt>None - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-Print">H5Eprint</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Eprint</code>(<em>FILE *</em> <code>stream</code>) -<dt><strong>Purpose:</strong> - <dd>Prints the error stack in a default manner. -<dt><strong>Description:</strong> - <dd><code>H5Eprint</code> prints the error stack on the specified - stream, <code>stream</code>. - Even if the error stack is empty, a one-line message will be printed: - <br> - <code>HDF5-DIAG: Error detected in thread 0.</code> - <p> - <code>H5Eprint</code> is a convenience function for - <code>H5Ewalk()</code> with a function that prints error messages. - Users are encouraged to write there own more specific error handlers. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>FILE *</em> <code>stream</code> - <dd>File pointer, or stderr if NULL. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-Walk">H5Ewalk</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Ewalk</code>(<em>H5E_direction_t</em> <code>direction</code>, - <em>H5E_walk_t</em> <code>func</code>, - <em>void *</em> <code>client_data</code> - ) -<dt><strong>Purpose:</strong> - <dd>Walks the error stack for the current thread, calling a specified - function. -<dt><strong>Description:</strong> - <dd><code>H5Ewalk</code> walks the error stack for the current thread - and calls the specified function for each error along the way. - <p> - <code>direction</code> determines whether the stack is walked - from the inside out or the outside in. - A value of <code>H5E_WALK_UPWARD</code> means begin with the - most specific error and end at the API; - a value of <code>H5E_WALK_DOWNWARD</code> means to start at the - API and end at the inner-most function where the error was first - detected. - <p> - <code>func</code> will be called for each error in the error stack. - Its arguments will include an index number (beginning at zero - regardless of stack traversal direction), an error stack entry, - and the <code>client_data</code> pointer passed to - <code>H5E_print</code>. - <p> - <code>H5Ewalk</code> can fail if there are problems initializing - the library. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5E_direction_t</em> <code>direction</code> - <dd>Direction in which the error stack is to be walked. - <dt><em>H5E_walk_t</em> <code>func</code> - <dd>Function to be called for each error encountered. - <dt><em>void *</em> <code>client_data</code> - <dd>Data to be passed with <code>func</code>. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-WalkCB">H5Ewalk_cb</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Ewalk_cb</code>(<em>int</em> <code>n</code>, - <em>H5E_error_t *</em><code>err_desc</code>, - <em>void</em> <code>*client_data</code> - ) -<dt><strong>Purpose:</strong> - <dd>Default error stack traversal callback function - that prints error messages to the specified output stream. -<dt><strong>Description:</strong> - <dd><code>H5Ewalk_cb</code> is a default error stack traversal callback - function that prints error messages to the specified output stream. - It is not meant to be called directly but rather as an - argument to the <code>H5Ewalk()</code> function. - This function is called also by <code>H5Eprint()</code>. - Application writers are encouraged to use this function as a - model for their own error stack walking functions. - <p> - <code>n</code> is a counter for how many times this function - has been called for this particular traversal of the stack. - It always begins at zero for the first error on the stack - (either the top or bottom error, or even both, depending on - the traversal direction and the size of the stack). - <p> - <code>err_desc</code> is an error description. It contains all the - information about a particular error. - <p> - <code>client_data</code> is the same pointer that was passed as the - <code>client_data</code> argument of <code>H5Ewalk()</code>. - It is expected to be a file pointer (or stderr if null). -<dt><strong>Parameters:</strong> - <dl> - <dt><em>int</em> <code>n</code> - <dd>Number of times this function has been called - for this traversal of the stack. - <dt><em>H5E_error_t *</em><code>err_desc</code> - <dd>Error description. - <dt><em>void</em> <code>*client_data</code> - <dd>A file pointer, or stderr if null. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-GetMajor">H5Eget_major</a> -<dt><strong>Signature:</strong> - <dd><em>const char *</em> <code>H5Eget_major</code>(<em>H5E_major_t</em> <code>n</code>) -<dt><strong>Purpose:</strong> - <dd>Returns a character string describing an error specified by a - major error number. -<dt><strong>Description:</strong> - <dd>Given a major error number, <code>H5Eget_major</code> returns a - constant character string that describes the error. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5E_major_t</em> <code>n</code> - <dd>Major error number. - </dl> -<dt><strong>Returns:</strong> - <dd> Returns a character string describing the error if successful. - Otherwise returns "Invalid major error number." -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Error-GetMinor">H5Eget_minor</a> -<dt><strong>Signature:</strong> - <dd><em>const char *</em> <code>H5Eget_minor</code>(<em>H5E_minor_t</em> <code>n</code>) -<dt><strong>Purpose:</strong> - <dd>Returns a character string describing an error specified by a - minor error number. -<dt><strong>Description:</strong> - <dd>Given a minor error number, <code>H5Eget_minor</code> returns a - constant character string that describes the error. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5E_minor_t</em> <code>n</code> - <dd>Minor error number. - </dl> -<dt><strong>Returns:</strong> - <dd> Returns a character string describing the error if successful. - Otherwise returns "Invalid minor error number." -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -H5E -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 14 July 1998 - -</body> -</html> diff --git a/doc/src/RM_H5F.html b/doc/src/RM_H5F.html deleted file mode 100644 index 5ecc148..0000000 --- a/doc/src/RM_H5F.html +++ /dev/null @@ -1,334 +0,0 @@ -<html> -<head><title> -HDF5/H5F Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -H5F -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5F: File Interface</h1> -</center> - -<h2>File API Functions</h2> - -These functions are designed to provide file-level access to HDF5 files. -Further manipulation of objects inside a file is performed through one of APIs -documented below. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#File-Open">H5Fopen</a> - <li><a href="#File-Create">H5Fcreate</a> - <li><a href="#File-IsHDF5">H5Fis_hdf5</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#File-Flush">H5Fflush</a> - <li><a href="#File-Close">H5Fclose</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#File-GetCreatePlist">H5Fget_create_plist</a> - <li><a href="#File-GetAccessPlist">H5Fget_access_plist</a> -</ul> -</td></tr> -</table> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="File-Open">H5Fopen</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Fopen</code>(<em>const char *</em><code>name</code>, - <em>unsigned</em> <code>flags</code>, - <em>hid_t</em> <code>access_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Opens an existing file. -<dt><strong>Description:</strong> - <dd><code>H5Fopen</code> opens an existing file and is the primary - function for accessing existing HDF5 files. - <p> - The parameter <code>access_id</code> is a file access property - list identifier or <code>H5P_DEFAULT</code> for the default I/O access - parameters. - <p> - The <code>flags</code> argument determines whether writing - to an existing file will be allowed or not. - The file is opened with read and write permission if - <code>flags</code> is set to <code>H5F_ACC_RDWR</code>. - All flags may be combined with the bit-wise OR operator (`|') - to change the behavior of the file open call. - The more complex behaviors of a file's access are controlled - through the file-access property list. - <p> - Files which are opened more than once return a unique identifier - for each <code>H5Fopen()</code> call and can be accessed - through all file identifiers. - <p> - The return value is a file identifier for the open file and it - should be closed by calling <code>H5Fclose()</code> when it is - no longer needed. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>const char *</em><code>name</code> - <dd>Name of the file to access. - <dt><em>unsigned</em> <code>flags</code> - <dd>File access flags. See the <code>H5Fcreate</code> - parameters list for a list of possible values. - <dt><em>hid_t</em> <code>access_id</code> - <dd>Identifier for the file access properties list. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a file identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="File-Create">H5Fcreate</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Fcreate</code>(<em>const char *</em><code>name</code>, - <em>unsigned</em> <code>flags</code>, - <em>hid_t</em> <code>create_id</code>, - <em>hid_t</em> <code>access_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Creates HDF5 files. -<dt><strong>Description:</strong> - <dd><code>H5Fcreate</code> is the primary function for creating - HDF5 files . - <p> - The <code>flags</code> parameter determines whether an - existing file will be overwritten. All newly created files - are opened for both reading and writing. All flags may be - combined with the bit-wise OR operator (`|') to change - the behavior of the <code>H5Fcreate</code> call. - <p> - The more complex behaviors of file creation and access - are controlled through the file-creation and file-access - property lists. The value of <code>H5P_DEFAULT</code> for - a property list value indicates that the library should use - the default values for the appropriate property list. Also see - <code>H5Fpublic.h</code> for the list of supported flags. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>const char *</em><code>name</code> - <dd>Name of the file to access. - <dt><em>uintn</em> <code>flags</code> - <dd>File access flags. Possible values include: - <ul><dl> - <dt>H5F_ACC_RDWR - <dd>Allow read and write access to file. - <dt>H5F_ACC_RDONLY - <dd>Allow read-only access to file. - <dt>H5F_ACC_TRUNC - <dd>Truncate file, if it already exists, - erasing all data previously stored in the file. - <dt>H5F_ACC_EXCL - <dd>Fail if file already exists. - <dt>H5F_ACC_DEBUG - <dd>Print debug information. - <dt>H5P_DEFAULT - <dd>Apply default file access and creation properties. - </dl></ul> - <dt><em>hid_t</em> <code>create_id</code> - <dd>File creation property list identifier, used when modifying - default file meta-data. - <dt><em>hid_t</em> <code>access_id</code> - <dd>File access property list identifier. - If parallel file access is desired, this is a collective - call according to the communicator stored in the - <code>access_id</code>. - Use <code>0</code> for default access properties. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a file identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="File-Flush">H5Fflush</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Fis_hdf5</code>(<em>hid_t </em><code>object_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Flushes all buffers associated with a file to disk. -<dt><strong>Description:</strong> - <dd><code>H5Fflush</code> causes all buffers associated with a - file to be immediately flushed to disk without removing the - data from the cache. - <p> - <code>object_id</code> can be any object associated with the file, - including the file itself, a dataset, a group, an attribute, or - a named data type. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>const char *</em><code>object_id</code> - <dd>Identifier of object used to identify the file. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="File-IsHDF5">H5Fis_hdf5</a> -<dt><strong>Signature:</strong> - <dd><em>hbool_t </em><code>H5Fis_hdf5</code>(<em>const char *</em><code>name</code> - ) -<dt><strong>Purpose:</strong> - <dd>Determines whether a file is in the HDF5 format. -<dt><strong>Description:</strong> - <dd><code>H5Fis_hdf5</code> determines whether a file is in - the HDF5 format. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>const char *</em><code>name</code> - <dd>File name to check format. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns <code>TRUE</code> or <code>FALSE</code> if successful. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="File-GetCreatePlist">H5Fget_create_plist</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Fget_create_plist</code>(<em>hid_t</em> <code>file_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns a file creation property list identifier. -<dt><strong>Description:</strong> - <dd><code>H5Fget_create_plist</code> returns a file creation - property list identifier identifying the creation properties - used to create this file. This function is useful for - duplicating properties when creating another file. - <p> - See "File Creation Properties" in - <a href="RM_H5P.html">H5P: Property List Interface</a> - in this reference manual and - "File Creation Properties" - in <a href="Files.html"><cite>Files</cite></a> in the - <cite>HDF5 User's Guide</cite> for - additional information and related functions. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>file_id</code> - <dd>Identifier of the file to get creation property list of - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a file creation property list identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="File-GetAccessPlist">H5Fget_access_plist</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Fget_access_plist</code>(<em>hid_t</em> <code>file_id</code>) -<dt><strong>Purpose:</strong> - <dd>Returns a file access property list identifier. -<dt><strong>Description:</strong> - <dd><code>H5Fget_access_plist</code> returns the - file access property list identifier of the specified file. - <p> - See "File Access Properties" in - <a href="RM_H5P.html">H5P: Property List Interface</a> - in this reference manual and - "File Access Property Lists" - in <a href="Files.html"><cite>Files</cite></a> in the - <cite>HDF5 User's Guide</cite> for - additional information and related functions. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>file_id</code> - <dd>Identifier of file to get access property list of - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a file access property list identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="File-Close">H5Fclose</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Fclose</code>(<em>hid_t</em> <code>file_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Terminates access to an HDF5 file. -<dt><strong>Description:</strong> - <dd><code>H5Fclose</code> terminates access to an HDF5 file. - If this is the last file identifier open for a file - and if access identifiers are still in use, - this function will fail. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>file_id</code> - <dd>Identifier of a file to terminate access to. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -H5F -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 14 August 1998 - -</body> -</html> diff --git a/doc/src/RM_H5Front.html b/doc/src/RM_H5Front.html deleted file mode 100644 index c3701b8..0000000 --- a/doc/src/RM_H5Front.html +++ /dev/null @@ -1,98 +0,0 @@ -<html> -<head><title> -HDF5 Draft API Specification -</title></head> -<body> - -<hr> -<center> -HDF5 Reference Manual -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<!-- -<a href="RM_H5R.html">H5R</a> ---> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>HDF5: API Specification<br>Reference Manual</h1> -</center> - -The HDF5 libraries provide several interfaces, each of which provides the -tools required to meet specific aspects of the HDF5 data-handling requirements. - -<ul> - -<li><a href="RM_H5.html">Library Functions</a> -- The general-purpose <strong>H5</strong> functions. -<li><a href="RM_H5F.html">File Interface</a> -- The <strong>H5F</strong> API for accessing HDF files. -<li><a href="RM_H5P.html">Property List Interface</a> -- The <strong>H5P</strong> API for manipulating object property lists. -<li><a href="RM_H5D.html">Dataset Interface</a> -- The <strong>H5D</strong> API for manipulating scientific datasets. -<li><a href="RM_H5T.html">Datatype Interface</a> -- The <strong>H5T</strong> API for defining dataset element information. -<li><a href="RM_H5S.html">Dataspace Interface</a> -- The <strong>H5S</strong> API for defining dataset dataspace. -<li><a href="RM_H5G.html">Group Interface</a> -- The <strong>H5G</strong> API for creating physical groups of objects on disk. -<li><a href="RM_H5E.html">Error Interface</a> -- The <strong>H5E</strong> API for error handling. -<li><a href="RM_H5Z.html">Compression Interface</a> -- The <strong>H5Z</strong> API for compression. -<li><a href="RM_H5A.html">Annotation Interface</a> -- The <strong>H5A</strong> API for annotations. -<li><a href="Tools.html">Tools</a> -- Interactive tools for the examination of existing HDF5 files. -<!-- -<li><a href="Glossary.html">Glossary</a> -- A glossary of data-types used in the APIs. ---> -<!-- -<hr> -<li>Experimental interface:<a href="RM_H5R.html">Ragged Arrays</a> -- The <strong>H5R</strong> API for ragged arrays. ---> - - -</ul> - -<hr> -<center> -HDF5 Reference Manual -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<!-- -<a href="RM_H5R.html">H5R</a> ---> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<table width=100% border=0> -<tr><td align=left valign=top> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> -<br> -Last modified: 8 September 1998 - -</td><td align=right valign=top> -<a href="Copyright.html">Copyright</a> -</td></tr> -</table> - - -</body> -</html> diff --git a/doc/src/RM_H5G.html b/doc/src/RM_H5G.html deleted file mode 100644 index a4ca46a..0000000 --- a/doc/src/RM_H5G.html +++ /dev/null @@ -1,744 +0,0 @@ -<html> -<head><title> -HDF5/H5G Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -H5G -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5G: Group Interface</h1> -</center> - -<h2>Group Object API Functions</h2> - -The Group interface functions create and manipulate physical groups -of objects on disk. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Group-Create">H5Gcreate</a> - <li><a href="#Group-Open">H5Gopen</a> - <li><a href="#Group-Set">H5Gset</a> - <li><a href="#Group-Close">H5Gclose</a> - <li><a href="#Group-Push">H5Gpush</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Group-Pop">H5Gpop</a> - <li><a href="#Group-Link">H5Glink</a> - <li><a href="#Group-Unlink">H5Gunlink</a> (NYI) - <li><a href="#Group-Iterate">H5Giterate</a> - <li><a href="#Group-Move">H5Gmove</a> (NYI) -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Group-GetObjinfo">H5Gget_objinfo</a> - <li><a href="#Group-GetLinkval">H5Gget_linkval</a> - <li><a href="#Group-SetComment">H5Gset_comment</a> - <li><a href="#Group-GetComment">H5Gget_comment</a> -</ul> -</td></tr><tr><td colspan=5 align=right> -<font size=-2>(NYI = Not yet implemented)</font> -</td></tr> -</table> - -<p> -A group associates names with objects and provides a mechanism -for mapping a name to an object. Since all objects appear in at -least one group (with the possible exception of the root object) -and since objects can have names in more than one group, the set -of all objects in an HDF5 file is a directed graph. The internal -nodes (nodes with out-degree greater than zero) must be groups -while the leaf nodes (nodes with out-degree zero) are either empty -groups or objects of some other type. Exactly one object in every -non-empty file is the root object. The root object always has a -positive in-degree because it is pointed to by the file boot block. - -<p> -Every file identifier returned by <code>H5Fcreate</code> or -<code>H5Fopen</code> maintains an independent current working group -stack, the top item of which is the current working group. The -stack can be manipulated with <code>H5Gset</code>, <code>H5Gpush</code>, -and <code>H5Gpop</code>. The root object is the current working group -if the stack is empty. - -<p> -An object name consists of one or more components separated from -one another by slashes. An absolute name begins with a slash and the -object is located by looking for the first component in the root -object, then looking for the second component in the first object, etc., -until the entire name is traversed. A relative name does not begin -with a slash and the traversal begins with the current working group. - -<p> -The library does not maintain the full absolute name of its current -working group because (1) cycles in the graph can make the name length -unbounded and (2) a group does not necessarily have a unique name. A -more Unix-like hierarchical naming scheme can be implemented on top of -the directed graph scheme by creating a ".." entry in each group that -points to its single predecessor; a <code>getcwd</code> function would -then be trivial. - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Create">H5Gcreate</a> - <dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Gcreate</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code>, - <em>size_t</em> <code>size_hint</code> - ) - <dt><strong>Purpose:</strong> - <dd>Creates a new empty group and gives it a name. - <dt><strong>Description:</strong> - <dd><code>H5Gcreate</code> creates a new group with the specified - name at the specified location, <code>loc_id</code>. - The location is identified by a file or group identifier. - The name, <code>name</code>, must not already be taken by some - other object and all parent groups must already exist. - <p> - <code>size_hint</code> is a hint for the number of bytes to - reserve to store the names which will be eventually added to - the new group. Passing a value of zero for <code>size_hint</code> - is usually adequate since the library is able to dynamically - resize the name heap, but a correct hint may result in better - performance. - If a non-positive value is supplied for size_hint, - then a default size is chosen. - <p> - The return value is a group identifier for the open group. - This group identifier should be closed by calling - <code>H5Gclose()</code> when it is no longer needed. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>The file or group identifier. - <dt><em>const char *</em><code>name</code> - <dd>The absolute or relative name of the new group. - <dt><em>size_t</em> <code>size_hint</code> - <dd>An optional parameter indicating the number of bytes - to reserve for the names that will appear in the group. - A conservative estimate could result in multiple - system-level I/O requests to read the group name heap; - a liberal estimate could result in a single large - I/O request even when the group has just a few names. - HDF5 stores each name with a null terminator. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns a valid group identifier for the open group if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Open">H5Gopen</a> - <dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Gopen</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code> - ) - <dt><strong>Purpose:</strong> - <dd>Opens an existing group for modification and returns a group - identifier for that group. - <dt><strong>Description:</strong> - <dd><code>H5Gopen</code> opens an existing group with the specified name at - the specified location, <code>loc_id</code>. - The location is identified by a file or - group identifier, and returns a group identifier for the group. - The obtained group identifier should be released by calling - <code>H5Gclose()</code> when it is no longer needed. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>File or group identifier within which group is to be open. - <dt><em>const char *</em> <code>name</code> - <dd>Name of group to open. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns a valid group identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Set">H5Gset</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Gset</code> (<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the current working group within a file. - <dt><strong>Description:</strong> - <dd><code>H5Gset</code> sets the group with the specified name - to be the current working group for the file which contains it. - This function sets the current working group by modifying the - top element of the current working group stack or, if the - stack is empty, by pushing a new element onto the stack. - The initial current working group is the root group. - <p> - <code>loc_id</code> can be a file identifier or a group identifier. - <p> - <code>name</code> is an absolute or relative name and is resolved as follows. Each file identifier - has a current working group, initially the root group of the - file. Relative names do not begin with a slash and are relative - to the specified group or to the current working group. - Absolute names begin with a slash and are relative to the file's - root group. For instance, the name <code>/Foo/Bar/Baz</code> is - resolved by first looking up <code>Foo</code> in the root group; - the name <code>Foo/Bar/Baz</code> is resolved by first looking - up the name <code>Foo</code> in the current working group. - <p> - Each file identifier maintains its own notion of the current - working group. If <code>loc_id</code> is a group identifier, the - file identifier is derived from the group identifier. - <p> - If a single file is opened with multiple calls to <code>H5Fopen()</code>, - which would return multiple file identifiers, then each - identifier's current working group can be set independently - of the other file identifiers for that file. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>The file or group identifier. - <dt><em>const char *</em><code>name</code> - <dd>The name of the new current working group. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Push">H5Gpush</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Gpush</code> (<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the current working group by pushing a - new element onto the current working group stack. - <dt><strong>Description:</strong> - <dd>Each file identifier maintains a stack of groups, the top group - of which is the current working group. The stack initially - contains only the root group. <code>H5Gpush</code> pushes a new group - onto the stack, thus setting a new current working group. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>File or group identifier. - <dt><em>const char *</em><code>name</code> - <dd>The name of the new current working group. The name may be - an absolute or relative name. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Pop">H5Gpop</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Gpop</code> (<em>hid_t</em> <code>loc_id</code>) - <dt><strong>Purpose:</strong> - <dd>Removes the top, or latest, entry from the working group stack, - setting the current working group to the previous value. - <dt><strong>Description:</strong> - <dd><code>H5Gpop</code> restores the previous current working group by - popping an element from the current working group stack. - An empty stack implies that the current working group is the root - object. Attempting to pop an empty stack results in failure. - <p> - Each file identfier maintains its own notion of the current - working group. That is, if a single file is opened with - multiple calls to <code>H5Fopen()</code>, which returns multiple file - handles, then each identfier's current working group can be - set independently of the other file identfiers for that file. - <p> - If <code>loc_id</code> is a group identifier, it is used only to determine the - file identifier for the stack from which to pop the top entry. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>The file, group, dataset, or datatype identifier. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Close">H5Gclose</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Gclose</code>(<em>hid_t </em><code>group_id</code>) - <dt><strong>Purpose:</strong> - <dd>Closes the specified group. - <dt><strong>Description:</strong> - <dd><code>H5Gclose</code> releases resources used by a group which was - opened by <code>H5Gcreate()</code> or <code>H5Gopen()</code>. - After closing a group, the <code>group_id</code> cannot be used again. - <p> - Failure to release a group with this call will result in resource leaks. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>group_id</code> - <dd>Group identifier to release. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Link">H5Glink</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Glink</code>(<em>hid_t</em> <code>loc_id</code>, - <em>H5G_link_t</em> <code>link_type</code>, - <em>const char *</em><code>current_name</code>, - <em>const char *</em><code>new_name</code> - ) - <dt><strong>Purpose:</strong> - <dd>Creates a link of the specified type from <code>new_name</code> - to <code>current_name</code>. - <dt><strong>Description:</strong> - <dd><code>H5Glink</code> creates a new name for an object that has some current - name, possibly one of many names it currently has. - <p> - If <code>link_type</code> is <code>H5G_LINK_HARD</code>, then - <code>current_name</code> must name an existing object and both - names are interpreted relative to <code>loc_id</code>, which is - either a file identifier or a group identifier. - <p> - If <code>link_type</code> is <code>H5G_LINK_SOFT</code>, then - <code>current_name</code> can be anything and is interpreted at - lookup time relative to the group which contains the final - component of <code>new_name</code>. For instance, if - <code>current_name</code> is <code>./foo</code>, - <code>new_name</code> is <code>./x/y/bar</code>, and a request - is made for <code>./x/y/bar</code>, then the actual object looked - up is <code>./x/y/./foo</code>. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>File, group, dataset, or datatype identifier. - <dt><em>H5G_link_t</em> <code>link_type</code> - <dd>Link type. - Possible values are <code>H5G_LINK_HARD</code> and <code>H5G_LINK_SOFT</code>. - <dt><em>const char *</em> <code>current_name</code> - <dd>Name of the existing object if link is a hard link. - Can be anything for the soft link. - <dt><em>const char *</em> <code>new_name</code> - <dd>New name for the object. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Unlink">H5Gunlink</a> - - <strong>(Not implemented in this release.)</strong> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Gunlink</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code> - ) - <dt><strong>Purpose:</strong> - <dd>Removes the specified <code>name</code> from the group graph and - decrements the link count for the object to which <code>name</code> points - <dt><strong>Description:</strong> - <dd><code>H5Gunlink</code> removes an association between a name and an object. - Object headers keep track of how many hard links refer to the object; - when the hard link count reaches zero, the object can be removed - from the file. Objects which are open are not removed until all - identifiers to the object are closed. - <p> - If the link count reaches zero, all file-space associated with - the object will be reclaimed. If the object is open, the - reclamation of the file space is delayed until all handles to the - object are closed. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>Identifier of the file containing the object. - <dt><em>const char *</em> <code>name</code> - <dd>Name of the object to unlink. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Iterate">H5Giterate</a> - <dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Giterate</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char</em> <code>*name</code>, - <em>int</em> <code>*idx</code>, - <em>H5G_operator_t</em> <code>operator</code>, - <em>void</em> <code>*operator_data</code> - ) - <dt><strong>Purpose:</strong> - <dd>Iterates an operation over the entries of a group. - <dt><strong>Description:</strong> - <dd><code>H5Giterate</code> iterates over the members of - <code>name</code> in the file or group specified with - <code>loc_id</code>. - For each object in the group, the <code>operator_data</code> - and some additional information, specified below, are - passed to the <code>operator</code> function. - The iteration begins with the <code>idx</code> object in the - group and the next element to be processed by the operator is - returned in <code>idx</code>. If <code>idx</code> - is NULL, then the iterator starts at the first group member; - since no stopping point is returned in this case, the iterator - cannot be restarted if one of the calls to its operator returns - non-zero. - <p> - The prototype for <code>H5G_operator_t</code> is: - <ul><dl> - <dd><code>typedef</code> <em>herr_t *</em>(<code>H5G_operator_t</code>)(<em>hid_t</em> <code>group_id</code>, - <em>const char *</em><code>member_name</code>, <em>void *</em><code>operator_data/*in,out*/</code>); - </dl></ul> - <dd>The operation receives the group identifier for the group being - iterated over, <code>group_id</code>, the name of the current - object within the group, <code>member_name</code>, and the - pointer to the operator data passed in to <code>H5Giterate</code>, - <code>operator_data</code>. - <p> - The return values from an operator are: - <ul> - <li>Zero causes the iterator to continue, returning - zero when all group members have been processed. - <li>Positive causes the iterator to immediately return that positive - value, indicating short-circuit success. The iterator can be - restarted at the next group member. - <li>Negative causes the iterator to immediately return that value, - indicating failure. The iterator can be restarted at the next - group member. - </ul> - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: File or group identifier. - <dt><em>const char</em> <code>*name</code> - <dd>IN: Group over which the iteration is performed. - <dt><em>int</em> <code>*idx</code> - <dd>IN/OUT: Location at which to begin the iteration. - <dt><em>H5G_iterate_t</em> <code>operator</code> - <dd>IN: Operation to be performed on an object at each step of - the iteration. - <dt><em>void</em> <code>*operator_data</code> - <dd>IN/OUT: Data associated with the operation. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns the return value of the last operator if it was non-zero, - or zero if all group members were processed. - Otherwise, returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-Move">H5Gmove</a> - - <strong>(Not implemented in this release.)</strong> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Gmove</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char</em> <code>*src</code>, - <em>const char</em> <code>*dst</code> - ) - <dt><strong>Purpose:</strong> - <dd>Renames an object within an HDF5 file. - <dt><strong>Description:</strong> - <dd><code>H5Gmove</code> renames an object within an HDF5 file. - The original name, <code>src</code>, is unlinked from the - group graph and the new name, <code>dst</code>, is inserted - as an atomic operation. Both names are interpreted relative - to <code>loc_id</code>, which is either a file or a group - identifier. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>File or group identifier. - <dt><em>const char</em> <code>*src</code> - <dd>Object's original name. - <dt><em>const char</em> <code>*dst</code> - <dd>Object's new name. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-GetObjinfo">H5Gget_objinfo</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Gget_objinfo</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code>, - <em>hbool_t</em> <code>follow_link</code>, - <em>H5G_stat_t *</em><code>statbuf</code> - ) - <dt><strong>Purpose:</strong> - <dd>Returns information about an object. - <dt><strong>Description:</strong> - <dd><code>H5Gget_objinfo</code> returns information about the - specified object through the <code>statbuf</code> argument. - <code>loc_id</code> (a file, group, or dataset identifier) and - <code>name</code> together determine the object. - If the object is a symbolic link and <code>follow_link</code> is - zero (<code>0</code>), then the information returned is that for the link itself; - otherwise the link is followed and information is returned about - the object to which the link points. - If <code>follow_link</code> is non-zero but the final symbolic link - is dangling (does not point to anything), then an error is returned. - The <code>statbuf</code> fields are undefined for an error. - The existence of an object can be tested by calling this function - with a null <code>statbuf</code>. - <p> - <code>H5Gget_objinfo()</code> fills in the following data structure: - <pre> - typedef struct H5G_stat_t { - unsigned long fileno; - haddr_t objno; - unsigned nlink; - H5G_obj_t type; - time_t mtime; - size_t linklen; - } H5G_stat_t - </pre> - The <code>fileno</code> and <code>objno</code> fields contain - values which uniquely itentify an object among those - HDF5 files which are open: if both values are the same - between two objects, then the two objects are the same - (provided both files are still open). - The <code>nlink</code> field is the number of hard links to - the object or zero when information is being returned about a - symbolic link (symbolic links do not have hard links but - all other objects always have at least one). - The <code>type</code> field contains the type of the object, - one of <code>H5G_GROUP</code>, <code>H5G_DATASET</code>, - or <code>H5G_LINK</code>. - The <code>mtime</code> field contains the modification time. - If information is being returned about a symbolic link then - <code>linklen</code> will be the length of the link value - (the name of the pointed-to object with the null terminator); - otherwise <code>linklen</code> will be zero. - Other fields may be added to this structure in the future. - <dt><strong>Note:</strong> - <dd>Some systems will be able to record the time accurately but - unable to retrieve the correct time; such systems (e.g., Irix64) - will report an <code>mtime</code> value of 0 (zero). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: File, group, dataset, or datatype identifier. - <dt><em>const char</em> <code>*name</code> - <dd>IN: Name of the object for which status is being sought. - <dt><em>hbool_t</em> <code>follow_link</code> - <dd>IN: Link flag. - <dt><em>H5G_stat_t</em> <code>*statbuf</code> - <dd>OUT: Buffer in which to return information about the object. - </dl> - <dt><strong>Returns:</strong> - <dd> Returns SUCCEED (0) with the fields of <code>statbuf</code> - (if non-null) initialized. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-GetLinkval">H5Gget_linkval</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Gget_linkval</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code>, - <em>size_t</em> <code>size</code>, - <em>char *</em><code>value</code> - ) - <dt><strong>Purpose:</strong> - <dd>Returns link value. - <dt><strong>Description:</strong> - <dd><code>H5Gget_linkval</code> returns <code>size</code> - characters of the link value through the <code>value</code> - argument if <code>loc_id</code> (a file or group identifier) - and <code>name</code> specify a symbolic link. - If <code>size</code> is smaller than the link value, then - <code>value</code> will not be null terminated. - <p> - This function fails if the specified object is not a symbolic link. - The presence of a symbolic link can be tested by passing zero for - <code>size</code> and NULL for <code>value</code>. - <p> - Use <code>H5Gget_objinfo()</code> to get the size of a link value. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of the file, group, dataset, or datatype. - <dt><em>const char *</em><code>name</code> - <dd>IN: Name of the object whose link value is to be checked. - <dt><em>size_t</em> <code>size</code> - <dd>IN: Maximum number of characters of <code>value</code> - to be returned. - <dt><em>char *</em><code>value</code> - <dd>OUT: Link value. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0), with the link value in <code>value</code>, - if successful. - Otherwise returns FAIL (-1). -</dl> - - - - - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-SetComment">H5Gset_comment</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Gset_comment</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code>, - <em>const char *</em><code>comment</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets comment for specified object. - <dt><strong>Description:</strong> - <dd><code>H5Gset_comment</code> sets the comment for the the - object <code>name</code> to <code>comment</code>. - Any previously existing comment is overwritten. - <p> - If <code>comment</code> is the empty string or a - null pointer, the comment message is removed from the object. - <p> - Comments should be relatively short, null-terminated, - ASCII strings. - <p> - Comments can be attached to any object that has an object header, - e.g., data sets, groups, named data types, and data spaces, but - not symbolic links. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of the file, group, dataset, or datatype. - <dt><em>const char *</em><code>name</code> - <dd>IN: Name of the object whose comment is to be set or reset. - <dt><em>const char *</em><code>comment</code> - <dd>IN: The new comment. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Group-GetComment">H5Gget_comment</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Gget_comment</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em><code>name</code>, - <em>size_t</em> <code>bufsize</code>, - <em>char *</em><code>comment</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves comment for specified object. - <dt><strong>Description:</strong> - <dd><code>H5Gget_comment</code> retrieves the comment for the the - object <code>name</code>. The comment is returned in the buffer - <code>comment</code>. - <p> - At most <code>bufsize</code> characters, including a null - terminator, are copied. The result is not null terminated - if the comment is longer than the supplied buffer. - <p> - If an object does not have a comment, the empty string - is returned. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>IN: Identifier of the file, group, dataset, or datatype. - <dt><em>const char *</em><code>name</code> - <dd>IN: Name of the object whose comment is to be set or reset. - <dt><em>size_t</em> <code>bufsize</code> - <dd>IN: Anticipated size of the buffer required to hold - <code>comment</code>. - <dt><em>char *</em><code>comment</code> - <dd>OUT: The comment. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns the number of characters in the comment, - counting the null terminator, if successful; the value - returned may be larger than <code>bufsize</code>. - Otherwise returns FAIL (-1). -</dl> - - - - - - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -H5G -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 2 September 1998 - -</body> -</html> diff --git a/doc/src/RM_H5P.html b/doc/src/RM_H5P.html deleted file mode 100644 index d9f1191..0000000 --- a/doc/src/RM_H5P.html +++ /dev/null @@ -1,1996 +0,0 @@ -<html> -<head><title> -HDF5/H5P Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -H5P -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5P: Property List Interface</h1> -</center> -<h2>Property List API Functions</h2> - -These functions manipulate property list objects to allow objects which require -many different parameters to be easily manipulated. - -<dir> -<table border=0> -<tr><td valign=top> - - <i>General Property List Operations</i> - <ul> - <li><a href="#Property-Create">H5Pcreate</a> - <li><a href="#Property-GetClass">H5Pget_class</a> - <li><a href="#Property-Copy">H5Pcopy</a> - <li><a href="#Property-Close">H5Pclose</a> - </ul> - - <p><i>File Creation Properties</i> - <ul> - <li><a href="#Property-GetVersion">H5Pget_version</a> - <li><a href="#Property-SetUserblock">H5Pset_userblock</a> - <li><a href="#Property-GetUserblock">H5Pget_userblock</a> - <li><a href="#Property-SetSizes">H5Pset_sizes</a> - <li><a href="#Property-GetSizes">H5Pget_sizes</a> - <li><a href="#Property-SetSymK">H5Pset_sym_k</a> - <li><a href="#Property-GetSymK">H5Pget_sym_k</a> - <li><a href="#Property-SetIstoreK">H5Pset_istore_k</a> - <li><a href="#Property-GetIstoreK">H5Pget_istore_k</a> - </ul> - -</td><td> </td><td valign=top> - - <i>File Access Properties</i> - <ul> - <li><a href="#Property-GetDriver">H5Pget_driver</a> - <li><a href="#Property-SetStdio">H5Pset_stdio</a> - <li><a href="#Property-GetStdio">H5Pget_stdio</a> - <li><a href="#Property-SetSec2">H5Pset_sec2</a> - <li><a href="#Property-GetSec2">H5Pget_sec2</a> - <li><a href="#Property-SetAlignment">H5Pset_alignment</a> - <li><a href="#Property-GetAlignment">H5Pget_alignment</a> - <li><a href="#Property-SetCore">H5Pset_core</a> - <li><a href="#Property-GetCore">H5Pget_core</a> - <li><a href="#Property-SetMPI">H5Pset_mpi</a> || - <li><a href="#Property-GetMPI">H5Pget_mpi</a> || - <li><a href="#Property-SetFamily">H5Pset_family</a> - <li><a href="#Property-GetFamily">H5Pget_family</a> - <li><a href="#Property-SetCache">H5Pset_cache</a> - <li><a href="#Property-GetCache">H5Pget_cache</a> - <li><a href="#Property-SetSplit">H5Pset_split</a> - <li><a href="#Property-GetSplit">H5Pget_split</a> - </ul> - -</td><td> </td><td valign=top> - - <i>Dataset Creation Properties</i> - <ul> - <li><a href="#Property-SetLayout">H5Pset_layout</a> - <li><a href="#Property-GetLayout">H5Pget_layout</a> - <li><a href="#Property-SetChunk">H5Pset_chunk</a> - <li><a href="#Property-GetChunk">H5Pget_chunk</a> - <li><a href="#Property-SetDeflate">H5Pset_deflate</a> -<!-- - <li><a href="#Property-GetDeflate">H5Pget_deflate</a> - <li><a href="#Property-SetCompression">H5Pset_compression</a> - <li><a href="#Property-GetCompression">H5Pget_compression</a> ---> - <li><a href="#Property-SetFilter">H5Pset_filter</a> - <li><a href="#Property-GetNFilters">H5Pget_nfilters</a> - <li><a href="#Property-GetFilter">H5Pget_filter</a> - <li><a href="#Property-SetExternal">H5Pset_external</a> - <li><a href="#Property-GetExternalCount">H5Pget_external_count</a> - <li><a href="#Property-GetExternal">H5Pget_external</a> - </ul> - - <p><i>Dataset Memory and Transfer Properties</i> - <ul> - <li><a href="#Property-SetBuffer">H5Pset_buffer</a> - <li><a href="#Property-GetBuffer">H5Pget_buffer</a> - <li><a href="#Property-SetPreserve">H5Pset_preserve</a> - <li><a href="#Property-GetPreserve">H5Pget_preserve</a> - <li><a href="#Property-SetXfer">H5Pset_xfer</a> || - <li><a href="#Property-GetXfer">H5Pget_xfer</a> || - </ul> - -</td></tr> - -<tr><td colspan=5 align=right> -<br> -|| <i>Available only in the parallel HDF5 library.</i> -</td></tr> - -</table> -</dir - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-Create">H5Pcreate</a> - <dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Pcreate</code>(<em>H5P_class_t</em> <code>type</code> - ) - <dt><strong>Purpose:</strong> - <dd>Creates a new property as an instance of a property list class. - <dt><strong>Description:</strong> - <dd><code>H5Pcreate</code> creates a new property as an instance of some - property list class. The new property list is initialized - with default values for the specified class. The classes are: - <dl> - <dt><code>H5P_FILE_CREATE</code> - <dd>Properties for file creation. - See <a href="Files.html">Files</a> - in the <cite>HDF User's Guide</cite> - for details about the file creation properties. - <dt><code>H5P_FILE_ACCESS</code> - <dd>Properties for file access. - See <a href="Files.html">Files</a> - in the <cite>HDF User's Guide</cite> - for details about the file creation properties. - <dt><code>H5P_DATASET_CREATE</code> - <dd>Properties for dataset creation. - See <a href="Datasets.html">Datasets</a> - in the <cite>HDF User's Guide</cite> - for details about dataset creation properties. - <dt><code>H5P_DATASET_XFER</code> - <dd>Properties for raw data transfer. - See <a href="Datasets.html">Datasets</a> - in the <cite>HDF User's Guide</cite> - for details about raw data transfer properties. - </dl> - <dt><strong>Parameters:</strong> - <dl> - <dt><em>H5P_class_t</em> <code>type</code> - <dd>IN: The type of property list to create. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns a property list identifier (<code>plist</code>) if successful; - otherwise Fail (-1). -</dl> - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-Close">H5Pclose</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pclose</code>(<em>hid_t</em> <code>plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Terminates access to a property list. - <dt><strong>Description:</strong> - <dd><code>H5Pclose</code> terminates access to a property list. - All property lists should be closed when the application is - finished accessing them. - This frees resources used by the property list. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the property list to terminate access to. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetClass">H5Pget_class</a> - <dt><strong>Signature:</strong> - <dd><em>H5P_class_t </em><code>H5Pget_class</code>(<em>hid_t</em> <code>plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Returns the property list class for a property list. - <dt><strong>Description:</strong> - <dd><code>H5Pget_class</code> returns the property list class for the - property list identied by the <code>plist</code> parameter. - Valid property list classes are defined in the description of - <code>H5Pcreate()</code>. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to query. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns a property list class if successful. - Otherwise returns H5P_NO_CLASS (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-Copy">H5Pcopy</a> - <dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Pcopy</code>(<em>hid_t</em> <code>plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Copies an existing property list to create a new property list. - <dt><strong>Description:</strong> - <dd><code>H5Pcopy</code> copies an existing property list to create - a new property list. - The new property list has the same properties and values - as the original property list. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to duplicate. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns a property list identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetVersion">H5Pget_version</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pget_version</code>(<em>hid_t</em> <code>plist</code>, - <em>int *</em> <code>boot</code>, - <em>int *</em> <code>freelist</code>, - <em>int *</em> <code>stab</code>, - <em>int *</em> <code>shhdr</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the version information of various objects for - a file creation property list. - <dt><strong>Description:</strong> - <dd><code>H5Pget_version</code> retrieves the version information of various objects - for a file creation property list. Any pointer parameters which are - passed as NULL are not queried. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file creation property list. - <dt><em>int *</em> <code>boot</code> - <dd>OUT: Pointer to location to return boot block version number. - <dt><em>int *</em> <code>freelist</code> - <dd>OUT: Pointer to location to return global freelist version number. - <dt><em>int *</em> <code>stab</code> - <dd>OUT: Pointer to location to return symbol table version number. - <dt><em>int *</em> <code>shhdr</code> - <dd>OUT: Pointer to location to return shared object header version number. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetUserblock">H5Pset_userblock</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_userblock</code>(<em>hid_t</em> <code>plist</code>, - <em>hsize_t</em> <code>size</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets user block size. - <dt><strong>Description:</strong> - <dd><code>H5Pset_userblock</code> sets the user block size of a - file creation property list. - The default user block size is 0; it may be set to any - power of 2 equal to 512 or greater (512, 1024, 2048, etc.). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to modify. - <dt><em>hsize_t</em> <code>size</code> - <dd>IN: Size of the user-block in bytes. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetUserblock">H5Pget_userblock</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pget_userblock</code>(<em>hid_t</em> <code>plist</code>, - <em>hsize_t *</em> <code>size</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the size of a user block. - <dt><strong>Description:</strong> - <dd><code>H5Pget_userblock</code> retrieves the size of a user block - in a file creation property list. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for property list to query. - <dt><em>hsize_t *</em> <code>size</code> - <dd>OUT: Pointer to location to return user-block size. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetSizes">H5Pset_sizes</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_sizes</code>(<em>hid_t</em> <code>plist</code>, - <em>size_t</em> <code>sizeof_addr</code>, - <em>size_t</em> <code>sizeof_size</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the byte size of the offsets and lengths used to address objects - in an HDF5 file. - <dt><strong>Description:</strong> - <dd><code>H5Pset_sizes</code> sets the byte size of the offsets and lengths used to - address objects in an HDF5 file. This function is only valid for - file creation property lists. Passing in a value of 0 for one of the - sizeof parameters retains the current value. The default value - for both values is 4 bytes. Valid values currenly are 2, 4, 8 and - 16. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to modify. - <dt><em>size_t</em> <code>sizeof_addr</code> - <dd>IN: Size of an object offset in bytes. - <dt><em>size_t</em> <code>sizeof_size</code> - <dd>IN: Size of an object length in bytes. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetSizes">H5Pget_sizes</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pget_sizes</code>(<em>hid_t</em> <code>plist</code>, - <em>size_t *</em> <code>sizeof_addr</code>, - <em>size_t *</em> <code>sizeof_size</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the size of the offsets and lengths used in an HDF5 file. - <dt><strong>Description:</strong> - <dd><code>H5Pget_sizes</code> retrieves the size of the offsets - and lengths used in an HDF5 file. - This function is only valid for file creation property lists. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to query. - <dt><em>size_t *</em> <code>size</code> - <dd>OUT: Pointer to location to return offset size in bytes. - <dt><em>size_t *</em> <code>size</code> - <dd>OUT: Pointer to location to return length size in bytes. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetMPI">H5Pset_mpi</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_mpi</code>(<em>hid_t</em> <code>plist</code>, - <em>MPI_Comm</em> <code>comm</code>, - <em>MPI_Info</em> <code>info</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the access mode for parallel I/O and the user supplied - communicator and info object. - <dt><strong>Description:</strong> - <dd><code>H5Pset_mpi</code> stores the access mode for MPIO call and the user supplied - communicator and info in the access property list, which can then - be used to open file. This function is available only in the - parallel HDF5 library and is not a collective function. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to modify - <dt><em>MPI_Comm</em> <code>comm</code> - <dd>IN: MPI communicator to be used for file open as defined in - MPI_FILE_OPEN of MPI-2. This function does not make a - duplicated <code>comm</code>. Any modification to <code>comm</code> after - this function call returns may have undetermined effect - to the access property list. Users should call this function - again to setup the property list. - <dt><em>MPI_Info</em> <code>info</code> - <dd>IN: MPI info object to be used for file open as defined in - MPI_FILE_OPEN of MPI-2. This function does not make a - duplicated <code>info</code>. Any modification to <code>info</code> after - this function call returns may have undetermined effect - to the access property list. Users should call this function - again to setup the property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetMPI">H5Pget_mpi</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pget_mpi</code>(<em>hid_t</em> <code>plist</code>, - <em>MPI_Comm</em> <code>*comm</code>, - <em>MPI_Info</em> <code>*info</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the communicator and info object. - <dt><strong>Description:</strong> - <dd><code>H5Pget_mpi</code> retrieves the communicator and info object - that have been set by H5Pset_mpi. - This function is available only in the parallel HDF5 library - and is not a collective function. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list that has been set - successfully by H5Pset_mpi. - <dt><em>MPI_Comm *</em> <code>comm</code> - <dd>OUT: Pointer to location to return the communicator. - <dt><em>MPI_Info *</em> <code>info</code> - <dd>OUT: Pointer to location to return the info object. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if the file access property list is set to the MPI. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetXfer">H5Pset_xfer</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_xfer</code>(<em>hid_t</em> <code>plist</code>, - <em>H5D_transfer_t</em> <code>data_xfer_mode</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the transfer mode of the dataset transfer property list. - <dt><strong>Description:</strong> - <dd><code>H5Pset_xfer</code> sets the transfer mode of the dataset transfer property list. - The list can then be used to control the I/O transfer mode - during dataset accesses. This function is available only - in the parallel HDF5 library and is not a collective function. - <p> - Valid data transfer modes are: - <ul><dl> - <dt>H5D_XFER_INDEPENDENT - <dd>Use independent I/O access. - (Currently the default mode.) - <dt>H5D_XFER_COLLECTIVE - <dd>Use MPI collective I/O access. - <dt>H5D_XFER_DFLT - <dd>User default I/O access. - </dl></ul> - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a dataset transfer property list - <dt><em>H5D_transfer_t</em> <code>data_xfer_mode</code> - <dd>IN: Data transfer mode. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetXfer">H5Pget_xfer</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pget_xfer</code>(<em>hid_t</em> <code>plist</code>, - <em>H5D_transfer_t *</em> <code>data_xfer_mode</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the transfer mode from the dataset transfer property list. - <dt><strong>Description:</strong> - <dd><code>H5Pget_xfer</code> retrieves the transfer mode from the - dataset transfer property list. - This function is available only in the parallel HDF5 library - and is not a collective function. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a dataset transfer property list. - <dt><em>H5D_transfer_t *</em> <code>data_xfer_mode</code> - <dd>OUT: Pointer to location to return the data transfer mode. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetSymK">H5Pset_sym_k</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_sym_k</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>ik</code>, - <em>int</em> <code>lk</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the size of parameters used to control the symbol table nodes. - <dt><strong>Description:</strong> - <dd><code>H5Pset_sym_k</code> sets the size of parameters used to - control the symbol table nodes. This function is only valid - for file creation property lists. Passing in a value of 0 for - one of the parameters retains the current value. - <p> - <code>ik</code> is one half the rank of a tree that stores a symbol - table for a group. Internal nodes of the symbol table are on - average 75% full. That is, the average rank of the tree is - 1.5 times the value of <code>ik</code>. - <p> - <code>lk</code> is one half of the number of symbols that can - be stored in a symbol table node. A symbol table node is the - leaf of a symbol table tree which is used to store a group. - When symbols are inserted randomly into a group, the group's - symbol table nodes are 75% full on average. That is, they - contain 1.5 times the number of symbols specified by - <code>lk</code>. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for property list to query. - <dt><em>int</em> <code>ik</code> - <dd>IN: Symbol table tree rank. - <dt><em>int</em> <code>lk</code> - <dd>IN: Symbol table node size. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetSymK">H5Pget_sym_k</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pget_sym_k</code>(<em>hid_t</em> <code>plist</code>, - <em>int *</em> <code>ik</code>, - <em>int *</em> <code>lk</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the size of the symbol table B-tree 1/2 rank - and the symbol table leaf node 1/2 size. - <dt><strong>Description:</strong> - <dd><code>H5Pget_sym_k</code> retrieves the size of the - symbol table B-tree 1/2 rank and the symbol table leaf - node 1/2 size. This function is only valid for file creation - property lists. If a parameter valued is set to NULL, that - parameter is not retrieved. See the description for - <a href="#Property-SetSymK">H5Pset_sym_k</a> for more - information. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Property list to query. - <dt><em>int *</em> <code>ik</code> - <dd>OUT: Pointer to location to return the symbol table's B-tree 1/2 rank. - <dt><em>int *</em> <code>size</code> - <dd>OUT: Pointer to location to return the symbol table's leaf node 1/2 size. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetIstoreK">H5Pset_istore_k</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_istore_k</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>ik</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the size of the parameter used to control the - B-trees for indexing chunked datasets. - <dt><strong>Description:</strong> - <dd><code>H5Pset_istore_k</code> sets the size of the parameter - used to control the B-trees for indexing chunked datasets. - This function is only valid for file creation property lists. - Passing in a value of 0 for one of the parameters retains - the current value. - <p> - <code>ik</code> is one half the rank of a tree that stores - chunked raw data. On average, such a tree will be 75% full, - or have an average rank of 1.5 times the value of - <code>ik</code>. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to query. - <dt><em>int</em> <code>ik</code> - <dd>IN: 1/2 rank of chunked storage B-tree. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetIstoreK">H5Pget_istore_k</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pget_istore_k</code>(<em>hid_t</em> <code>plist</code>, - <em>int *</em> <code>ik</code> - ) - <dt><strong>Purpose:</strong> - <dd>Queries the 1/2 rank of an indexed storage B-tree. - <dt><strong>Description:</strong> - <dd><code>H5Pget_istore_k</code> queries the 1/2 rank of - an indexed storage B-tree. - The argument <code>ik</code> may be the null pointer (NULL). - This function is only valid for file creation property lists. - <p> - See <a href="#Property-SetIstoreK">H5Pset_istore_k</a> for details. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to query. - <dt><em>int *</em> <code>ik</code> - <dd>OUT: Pointer to location to return the chunked storage B-tree 1/2 rank. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetLayout">H5Pset_layout</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_layout</code>(<em>hid_t</em> <code>plist</code>, - <em>H5D_layout_t</em> <code>layout</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the type of storage used store the raw data for a dataset. - <dt><strong>Description:</strong> - <dd><code>H5Pset_layout</code> sets the type of storage used store the - raw data for a dataset. - This function is only valid for dataset creation property lists. - Valid parameters for <code>layout</code> are: - <ul><dl> - <dt>H5D_COMPACT - <dd>Store raw data and object header contiguously in file. - This should only be used for very small amounts of raw - data (suggested less than 1KB). - <dt>H5D_CONTIGUOUS - <dd>Store raw data seperately from object header in one - large chunk in the file. - <dt>H5D_CHUNKED - <dd>Store raw data seperately from object header in one - large chunk in the file and store chunks of the raw - data in seperate locations in the file. - </dl></ul> - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to query. - <dt><em>H5D_layout_t</em> <code>layout</code> - <dd>IN: Type of storage layout for raw data. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetLayout">H5Pget_layout</a> - <dt><strong>Signature:</strong> - <dd><em>H5D_layout_t</em> <code>H5Pget_layout</code>(<em>hid_t</em> <code>plist</code>) - <dt><strong>Purpose:</strong> - <dd>Returns the layout of the raw data for a dataset. - <dt><strong>Description:</strong> - <dd><code>H5Pget_layout</code> returns the layout of the raw data for - a dataset. This function is only valid for dataset creation - property lists. Valid types for <code>layout</code> are: - <ul> <dl> - <dt>H5D_COMPACT - <dd>Raw data and object header stored contiguously in file. - <dt>H5D_CONTIGUOUS - <dd>Raw data stored seperately from object header in one - large chunk in the file. - <dt>H5D_CHUNKED - <dd>Raw data stored seperately from object header in - chunks in seperate locations in the file. - </dl> </ul> - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for property list to query. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns the layout type of a a dataset creation property list - if successful. - Otherwise returns H5D_LAYOUT_ERROR (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetChunk">H5Pset_chunk</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Pset_chunk</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>ndims</code>, - <em>const hsize_t *</em> <code>dim</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the size of the chunks used to store a chunked layout dataset. - <dt><strong>Description:</strong> - <dd><code>H5Pset_chunk</code> sets the size of the chunks used to - store a chunked layout dataset. This function is only valid - for dataset creation property lists. - The <code>ndims</code> parameter currently must be the same size - as the rank of the dataset. The values of the <code>dim</code> - array define the size of the chunks to store the dataset's raw data. - As a side-effect, the layout of the dataset is changed to - <code>H5D_CHUNKED</code>, if it is not already. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for property list to query. - <dt><em>int</em> <code>ndims</code> - <dd>IN: The number of dimensions of each chunk. - <dt><em>const hsize_t *</em> <code>dim</code> - <dd>IN: An array containing the size of each chunk. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetChunk">H5Pget_chunk</a> - <dt><strong>Signature:</strong> - <dd><em>int </em><code>H5Pget_chunk</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>max_ndims</code>, - <em>hsize_t *</em> <code>dims</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the size of chunks for the raw data of a chunked layout dataset. - - <dt><strong>Description:</strong> - <dd><code>H5Pget_chunk</code> retrieves the size of chunks for the - raw data of a chunked layout dataset. - This function is only valid for dataset creation property lists. - At most, <code>max_ndims</code> elements of <code>dims</code> - will be initialized. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of property list to query. - <dt><em>int</em> <code>max_ndims</code> - <dd>OUT: Size of the <code>dims</code> array. - <dt><em>hsize_t *</em> <code>dims</code> - <dd>OUT: Array to store the chunk dimensions. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns chunk dimensionality successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetAlignment">H5Pset_alignment</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_alignment</code>(<em>hid_t</em> <code>plist</code>, - <em>hsize_t</em> <code>threshold</code>, - <em>hsize_t</em> <code>alignment</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets alignment properties of a file access property list. - <dt><strong>Description:</strong> - <dd><code>H5Pset_alignment</code> sets the alignment properties - of a file access property list - so that any file object >= THRESHOLD bytes will be aligned on - an address which is a multiple of ALIGNMENT. The addresses - are relative to the end of the user block; the alignment is - calculated by subtracting the user block size from the - absolute file address and then adjusting the address to be a - multiple of ALIGNMENT. - <p> - Default values for THRESHOLD and ALIGNMENT are one, implying - no alignment. Generally the default values will result in - the best performance for single-process access to the file. - For MPI-IO and other parallel systems, choose an alignment - which is a multiple of the disk block size. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for a file access property list. - <dt><em>hsize_t</em> <code>threshold</code> - <dd>IN: Threshhold value. - <dt><em>hsize_t</em> <code>alignment</code> - <dd>IN: Alignment value. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetAlignment">H5Pget_alignment</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pget_alignment</code>(<em>hid_t</em> <code>plist</code>, - <em>hsize_t</em> <code>*threshold</code>, - <em>hsize_t</em> <code>*alignment</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves the current settings for alignment properties from a - file access property list. - <dt><strong>Description:</strong> - <dd><code>H5Pget_alignment</code> retrieves the current settings for - alignment properties from a file access property list. - The <code>threshold</code> and/or <code>alignment</code> pointers - may be null pointers (NULL). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list. - <dt><em>hsize_t</em> <code>*threshold</code> - <dd>OUT: Pointer to location of return threshhold value. - <dt><em>hsize_t</em> <code>*alignment</code> - <dd>OUT: Pointer to location of return alignment value. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetExternal">H5Pset_external</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_external</code>(<em>hid_t</em> <code>plist</code>, - <em>const char</em> <code>*name</code>, - <em>off_t</em> <code>offset</code>, - <em>hsize_t</em> <code>size</code> - ) - <dt><strong>Purpose:</strong> - <dd>Adds an external file to the list of external files. - <dt><strong>Description:</strong> - <dd><code>H5Pset_external</code> adds an external file to the - list of external files. - <p> - If a dataset is split across multiple files then the files - should be defined in order. The total size of the dataset is - the sum of the SIZE arguments for all the external files. If - the total size is larger than the size of a dataset then the - dataset can be extended (provided the data space also allows - the extending). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a dataset creation property list. - <dt><em>const char</em> <code>*name</code> - <dd>IN: Name of an external file. - <dt><em>off_t</em> <code>offset</code> - <dd>IN: Offset, in bytes, from the beginning of the file - to the location in the file where the data starts. - <dt><em>hsize_t</em> <code>size</code> - <dd>IN: Number of bytes reserved in the file for the data. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetExternalCount">H5Pget_external_count</a> - <dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Pget_external_count</code>(<em>hid_t</em> <code>plist</code>, - ) - <dt><strong>Purpose:</strong> - <dd>Returns the number of external files for a dataset. - <dt><strong>Description:</strong> - <dd><code>H5Pget_external_count</code> returns the number of external files - for the specified dataset. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a dataset creation property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns the number of external files if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetExternal">H5Pget_external</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pget_external</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>idx</code>, - <em>size_t</em> <code>name_size</code>, - <em>char</em> <code>*name</code>, - <em>off_t</em> <code>*offset</code>, - <em>hsize_t</em> <code>*size</code> - ) - <dt><strong>Purpose:</strong> - <dd>Returns information about an external file. - <dt><strong>Description:</strong> - <dd><code>H5Pget_external</code> returns information about an external - file. The external file is specified by its index, <code>idx</code>, - which is a number from zero to N-1, where N is the value - returned by <code>H5Pget_external_count()</code>. - At most <code>name_size</code> characters are copied into the - <code>name</code> array. If the external file name is - longer than <code>name_size</code> with the null terminator, the - return value is not null terminated (similar to <code>strncpy()</code>). - <p> - If <code>name_size</code> is zero or <code>name</code> is the - null pointer, the external file name is not returned. - If <code>offset</code> or <code>size</code> are null pointers - then the corresponding information is not returned. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a dataset creation property list. - <dt><em>int</em> <code>idx</code> - <dd>IN: External file index. - <dt><em>size_t</em> <code>name_size</code> - <dd>IN: Maximum length of <code>name</code> array. - <dt><em>char</em> <code>*name</code> - <dd>OUT: Name of the external file. - <dt><em>off_t</em> <code>*offset</code> - <dd>OUT: Pointer to a location to return an offset value. - <dt><em>hsize_t</em> <code>*size</code> - <dd>OUT: Pointer to a location to return the size of the - external file data. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetFilter">H5Pset_filter</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_filter</code>(<em>hid_t</em> <code>plist</code>, - <em>H5Z_filter_t</em> <code>filter</code>, - <em>unsigned int</em> <code>flags</code>, - <em>size_t</em> <code>cd_nelmts</code>, - <em>const unsigned int</em> <code>cd_values[]</code> - ) - <dt><strong>Purpose:</strong> - <dd>Adds a filter to the filter pipeline. - <dt><strong>Description:</strong> - <dd><code>H5Pset_filter</code> adds the specified - <code>filter</code> and corresponding properties to the - end of an output filter pipeline. - If <code>plist</code> is a dataset creation property list, - the filter is added to the permanent filter pipeline; - if <code>plist</code> is a dataset transfer property list, - the filter is added to the transient filter pipeline. - <p> - The array <code>cd_values</code> contains - <code>cd_nelmts</code> integers which are auxiliary data - for the filter. The integer values will be stored in the - dataset object header as part of the filter information. - <p> - The <code>flags</code> argument is a bit vector with - the following fields specifying certain general properties - of the filter: - <center> - <table align=center width="80%"> - <tr valign=top> - <td valign=top><code>H5Z_FLAG_OPTIONAL</code></td> - <td> </td> - <td valign=top>If this bit is set then the filter is - optional. If the filter fails (see below) during an - <code>H5Dwrite()</code> operation then the filter is - just excluded from the pipeline for the chunk for which - it failed; the filter will not participate in the - pipeline during an <code>H5Dread()</code> of the chunk. - This is commonly used for compression filters: if the - compression result would be larger than the input then - the compression filter returns failure and the - uncompressed data is stored in the file. If this bit is - clear and a filter fails then <code>H5Dwrite()</code> - or <code>H5Dread()</code> also fails.</td> - </tr> - </table> - </center> - <dt><strong>Note:</strong> - <dd>This function currently supports only the permanent filter - pipeline; <code>plist_id</code> must be a dataset creation - property list. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Property list identifier. - <dt><em>H5Z_filter_t</em> <code>filter</code> - <dd>IN: Filter to be added to the pipeline. - <dt><em>unsigned int</em> <code>flags</code> - <dd>IN: Bit vector specifying certain general properties - of the filter. - <dt><em>size_t</em> <code>cd_nelmts</code> - <dd>IN: Number of elements in <code>cd_values</code> - <dt><em>const unsigned int</em> <code>cd_values[]</code> - <dd>IN: Auxiliary data for the filter. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetNFilters">H5Pget_nfilters</a> - <dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Pget_nfilters</code>(<em>hid_t</em> <code>plist</code>) - <dt><strong>Purpose:</strong> - <dd>Returns the number of filters in the pipeline. - <dt><strong>Description:</strong> - <dd><code>H5Pget_nfilters</code> returns the number of filters - defined in the filter pipeline associated with the property list - <code>plist</code>. - <p> - In each pipeline, the filters are numbered from - 0 through <em>N</em>-1, where <em>N</em> is the value returned - by this function. During output to the file, the filters are - applied in increasing order; during input from the file, they - are applied in decreasing order. - <p> - <code>H5Pget_nfilters</code> returns the number of filters - in the pipeline, including zero (<code>0</code>) if there - are none. - <dt><strong>Note:</strong> - <dd>This function currently supports only the permanent filter - pipeline; <code>plist_id</code> must be a dataset creation - property list. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Property list identifier. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns the number of filters in the pipeline if successful; - otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetFilter">H5Pget_filter</a> - <dt><strong>Signature:</strong> - <dd><em>H5Z_filter_t</em> <code>H5Pget_filter</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>filter_number</code>, - <em>unsigned int *</em><code>flags</code>, - <em>size_t *</em><code>cd_nelmts</code>, - <em>unsigned int *</em><code>cd_values</code>, - <em>size_t</em> <code>namelen</code>, - <em>char</em> <code>name[]</code> - ) - <dt><strong>Purpose:</strong> - <dd>Returns information about a filter in a pipeline. - <dt><strong>Description:</strong> - <dd><code> </code> - <code>H5Pget_filter</code> returns information about a - filter, specified by its filter number, in a filter pipeline, - specified by the property list with which it is associated. - <p> - If <code>plist</code> is a dataset creation property list, - the pipeline is a permanent filter pipeline; - if <code>plist</code> is a dataset transfer property list, - the pipeline is a transient filter pipeline. - <p> - On input, <code>cd_nelmts</code> indicates the number of entries - in the <code>cd_values</code> array, as allocated by the caller; - on return,<code>cd_nelmts</code> contains the number of values - defined by the filter. - <p> - <code>filter_number</code> is a value between zero and - <em>N</em>-1, as described in - <a href="#Property-GetNFilters"><code>H5Pget_nfilters()</code></a>. - The function will return FAIL (-1) if the filter number is out - of range. - <p> - If <code>name</code> is a pointer to an array of at least - <code>namelen</code> bytes, the filter name will be copied - into that array. The name will be null terminated if - <code>namelen</code> is large enough. The filter name returned - will be the name appearing in the file, the name registered - for the filter, or an empty string. - <p> - The structure of the <code>flags</code> argument is discussed - in <a href="#Property-SetFilter"><code>H5Pset_filter()</code></a>. - <dt><strong>Note:</strong> - <dd>This function currently supports only the permanent filter - pipeline; <code>plist</code> must be a dataset creation property - list. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Property list identifier. - <dt><em>int</em> <code>filter_number</code> - <dd>IN: Sequence number within the filter pipeline of - the filter for which information is sought. - <dt><em>unsigned int *</em><code>flags</code> - <dd>OUT: Bit vector specifying certain general properties - of the filter. - <dt><em>size_t *</em><code>cd_nelmts</code> - <dd>IN/OUT: Number of elements in <code>cd_values</code> - <dt><em>unsigned int *</em><code>cd_values</code> - <dd>OUT: Auxiliary data for the filter. - <dt><em>size_t</em> <code>namelen</code> - <dd>IN: Anticipated number of characters in <code>name</code>. - <dt><em>char</em> <code>name[]</code> - <dd>OUT: Name of the filter. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns the filter identification number if successful. - Otherwise returns H5Z_FILTER_ERROR (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetDriver">H5Pget_driver</a> - <dt><strong>Signature:</strong> - <dd><em>H5F_driver_t</em> <code>H5Pget_driver</code>(<em>hid_t</em> <code>plist</code>, - ) - <dt><strong>Purpose:</strong> - <dd>Returns a low-level file driver identifier. - <dt><strong>Description:</strong> - <dd><code>H5Pget_driver</code> returns the identifier of the - low-level file driver. Valid identifiers are: - <ul> - <li>H5F_LOW_STDIO (0) - <li>H5F_LOW_SEC2 (1) - <li>H5F_LOW_MPIO (2) - <li>H5F_LOW_CORE (3) - <li>H5F_LOW_SPLIT (4) - <li>H5F_LOW_FAMILY (5) - </ul> - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns a low-level driver identifier if successful. - Otherwise returns H5F_LOW_ERROR (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetStdio">H5Pset_stdio</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_stdio</code>(<em>hid_t</em> <code>plist</code>) - <dt><strong>Purpose:</strong> - <dd>Sets the low level file driver to use the functions declared - in the stdio.h. - <dt><strong>Description:</strong> - <dd><code>H5Pset_stdio</code> sets the low level file driver to use - the functions declared in the stdio.h file: fopen(), fseek() - or fseek64(), fread(), fwrite(), and fclose(). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetStdio">H5Pget_stdio</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pget_stdio</code>(<em>hid_t</em> <code>plist</code>) - <dt><strong>Purpose:</strong> - <dd>Determines whether the file access property list is set to - the stdio driver. - <dt><strong>Description:</strong> - <dd><code>H5Pget_stdio</code> checks to determine whether the - file access property list is set to the stdio driver. - In the future, additional arguments may be added to this - function to match those added to H5Pset_stdio(). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if the file access propety list is set - to the stdio driver. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetSec2">H5Pset_sec2</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_sec2</code>(<em>hid_t</em> <code>plist</code>, - ) - <dt><strong>Purpose:</strong> - <dd>Sets the low-level file driver to use the declared functions. - <dt><strong>Description:</strong> - <dd><code>H5Pset_sec2</code> sets the low-level file driver to use - the functions declared - in the unistd.h file: open(), lseek() or lseek64(), read(), - write(), and close(). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetSec2">H5Pget_sec2</a> - <dt><strong>Signature:</strong> - <dd><em>returntype</em> <code>H5Pget_sec2</code>(<em>hid_t</em> <code>plist</code>) - <dt><strong>Purpose:</strong> - <dd>Checks whether the file access propety list is set - to the sec2 driver. - <dt><strong>Description:</strong> - <dd><code>H5Pget_sec2</code> checks to determine whether the - file access property list is set to the sec2 driver. - In the future, additional arguments may be - added to this function to match those added to H5Pset_sec2(). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if the file access propety list is set - to the sec2 driver. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetCore">H5Pset_core</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_core</code>(<em>hid_t</em> <code>plist</code>, - <em>size_t</em> <code>increment</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the low-level file driver to use malloc() and free(). - <dt><strong>Description:</strong> - <dd><code>H5Pset_core</code> sets the low-level file driver to use - <code>malloc()</code> and <code>free()</code>. - This driver is restricted to temporary files which are not - larger than the amount of virtual memory available. - The <code>increment</code> argument determines the file block size - and memory will be allocated in multiples of INCREMENT bytes. - A liberal <code>increment</code> results in fewer calls to - <code>realloc()</code> and probably less memory fragmentation. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of a file access property list. - <dt><em>size_t</em> <code>increment</code> - <dd>IN: File block size in bytes. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetCore"></a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pget_core</code>(<em>hid_t</em> <code>plist</code>, - <em>size_t</em> <code>*increment</code> - ) - <dt><strong>Purpose:</strong> - <dd>Determines whether the file access property list is set - to the core driver. - <dt><strong>Description:</strong> - <dd><code>H5Pget_core</code> checks to determine whether the - file access property list is set to the core driver. - On success, the block size is returned through the - <code>increment</code> if it is not the null pointer. - In the future, additional arguments may be added to this - function to match those added to <code>H5Pset_core()</code>. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>size_t</em> <code>*increment</code> - <dd>OUT: Pointer to a location to return the file block size (in bytes). - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if the file access propety list is set - to the core driver. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetSplit">H5Pset_split</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_split</code>(<em>hid_t</em> <code>plist</code>, - <em>const char</em> <code>*meta_ext</code>, - <em>hid_t</em> <code>meta_plist</code>, - <em>const char</em> <code>*raw_ext</code>, - <em>hid_t</em> <code>raw_plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the low-level driver to split meta data from raw data. - <dt><strong>Description:</strong> - <dd><code>H5Pset_split</code> sets the low-level driver to - split meta data from raw data, storing meta data in one file and - raw data in another file. The meta file will have a name - which is formed by adding <em>meta_extension</em> (recommended - default value: <code>.meta</code>) to the end of the base name - and will be accessed according to the <em>meta_properties</em>. - The raw file will have a name which is formed by appending - <em>raw_extension</em> (recommended default value: - <code>.raw</code>) to the base name and will be accessed according - to the <em>raw_properties</em>. - Additional parameters may be added to this function in the future. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>const char</em> <code>*meta_ext</code> - <dd>IN: Name of the extension for the metafile filename. - Recommended default value: <code>.meta</code>. - <dt><em>hid_t</em> <code>meta_plist</code> - <dd>IN: Identifier of the meta file access property list. - <dt><em>const char</em> <code>*raw_ext</code> - <dd>IN: Name extension for the raw file filename. - Recommended default value: <code>.raw</code>. - <dt><em>hid_t</em> <code>raw_plist</code> - <dd>IN: Identifier of the raw file access property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetSplit">H5Pget_split</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pget_split</code>(<em>hid_t</em> <code>plist</code>, - <em>size_t</em> <code>meta_ext_size</code>, - <em>char</em> <code>*meta_ext</code>, - <em>hid_t</em> <code>*meta_properties</code>, - <em>size_t</em> <code>raw_ext_size</code>, - <em>char</em> <code>*raw_ext</code>, - <em>hid_t</em> <code>*raw_properties</code> - ) - <dt><strong>Purpose:</strong> - <dd>Determines whether the file access property list is set - to the split driver. - <dt><strong>Description:</strong> - <dd><code>H5Pget_split</code> checks to determine whether the file - access property list is set to the split driver. - On successful return, - <code>meta_properties</code> and <code>raw_properties</code> will - point to copies of the meta and raw access property lists - which should be closed by calling <code>H5Pclose()</code> when - the application is finished with them, but if the meta and/or - raw file has no property list then a negative value is - returned for that property list identifier. Also, if - <code>meta_extension</code> and/or <code>raw_extension</code> are - non-null pointers, at most <code>meta_ext_size</code> or - <code>raw_ext_size</code> characters of the meta or raw file name - extension will be copied to the specified buffer. If the - actual name is longer than what was requested then the result - will not be null terminated (similar to - <code>strncpy()</code>). In the future, additional arguments - may be added to this function to match those added to - <code>H5Pset_split()</code>. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>size_t</em> <code>meta_ext_size</code> - <dd>IN: Number of characters of the meta file extension to be - copied to the <code>meta_ext</code> buffer. - <dt><em>OUT</em> <code>*meta_ext</code> - <dd>IN: Meta file extension. - <dt><em>hid_t</em> <code>*meta_properties</code> - <dd>OUT: Pointer to a copy of the meta file access property list. - <dt><em>size_t</em> <code>raw_ext_size</code> - <dd>IN: Number of characters of the raw file extension to be - copied to the <code>raw_ext</code> buffer. - <dt><em>char</em> <code>*raw_ext</code> - <dd>OUT: Raw file extension. - <dt><em>hid_t</em> <code>*raw_properties</code> - <dd>OUT: Pointer to a copy of the raw file access property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if the file access propety list is set - to the split driver. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetFamily">H5Pset_family</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_family</code>(<em>hid_t</em> <code>plist</code>, - <em>hsize_t</em> <code>memb_size</code>, - <em>hid_t</em> <code>memb_plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the file access properties list to the <em>family</em> - driver. - <dt><strong>Description:</strong> - <dd><i>Original version. Edited version below.</i> - <dd><code>H5Pset_family</code> sets the file access properties - to use the <em>family</em> - driver; any previously defined driver properties are erased - from the property list. Each member of the file family will - use <em>member_properties</em> as its file access property - list. The <em>memb_size</em> argument gives the logical size - in bytes of each family member but the actual size could be - smaller depending on whether the file contains holes. The - member size is only used when creating a new file or - truncating an existing file; otherwise the member size comes - from the size of the first member of the family being - opened. Note: if the size of the <code>off_t</code> type is - four bytes then the maximum family member size is usually - 2^31-1 because the byte at offset 2,147,483,647 is generally - inaccessable. Additional parameters may be added to this - function in the future. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>hsize_t</em> <code>memb_size</code> - <dd>IN: Logical size, in bytes, of each family member. - <dt><em>hid_t</em> <code>memb_plist</code> - <dd>IN: Identifier of the file access property list - for each member of the family. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetFamily">H5Pset_family</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_family</code>(<em>hid_t</em> <code>plist</code>, - <em>hsize_t</em> <code>memb_size</code>, - <em>hid_t</em> <code>memb_plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the file access properties list to the <code>family</code> - driver. - <dt><strong>Description:</strong> - <dd><i>Edited version. Original version above.</i> - <dd><code>H5Pset_family</code> sets the file access properties - to use the <code>family</code> driver; any previously defined - driver properties are erased from the property list. - See <a href="Files.html#File_Families">File Families</a> - in the <cite>HDF5 User's Guide</dite> for a discussion - of file families. - <p> - Each member of the file family will use <code>memb_plist</code> - as its file access property list. - <p> - The <code>memb_size</code> argument gives the logical size - in bytes of each family member; the actual size could be - smaller depending on whether the file contains holes. - The member size is only used when creating a new file or - truncating an existing file; otherwise the member size comes - from the size of the first member of the family being - opened. - <p> - Note: If the size of the <code>off_t</code> type is - four bytes, then the maximum family member size is usually - 2^31-1 because the byte at offset 2,147,483,647 is generally - inaccessable. - <p> - Additional parameters may be added to this function in the - future. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>hsize_t</em> <code>memb_size</code> - <dd>IN: Logical size, in bytes, of each family member. - <dt><em>hid_t</em> <code>memb_plist</code> - <dd>IN: Identifier of the file access property list - for each member of the family. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetFamily">H5Pget_family</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pget_family</code>(<em>hid_t</em> <code>tid</code>, - <em>hsize_t</em> <code>*memb_size</code>, - <em>hid_t</em> <code>*memb_plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Determines whether the file access property list - is set to the family driver. - <dt><strong>Description:</strong> - <dd><code>H5Pget_family</code> checks to determine whether the - file access property list is set to the family driver. - On successful return, - <em>access_properties</em> will point to a copy of the member - access property list which should be closed by calling - <code>H5Pclose()</code> when the application is finished with - it. If <em>memb_size</em> is non-null then it will contain - the logical size in bytes of each family member. In the - future, additional arguments may be added to this function to - match those added to <code>H5Pset_family()</code>. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>hsize_t</em> <code>*memb_size</code> - <dd>OUT: Logical size, in bytes, of each family member. - <dt><em>hid_t</em> <code>*memb_plist</code> - <dd>OUT: Identifier of the file access property list - for each member of the family. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if the file access propety list is set - to the family driver. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetCache">H5Pset_cache</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_cache</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>mdc_nelmts</code>, - <em>size_t</em> <code>rdcc_nbytes</code>, - <em>double</em> <code>rdcc_w0</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the number of elements in the meta data cache and the - total number of bytes in the raw data chunk cache. - <dt><strong>Description:</strong> - <dd><code>H5Pset_cache</code> sets the number of elements (objects) - in the meta data cache and the total number of bytes in the - raw data chunk cache. - <p> - Sets or queries the meta data cache and raw data chunk cache - parameters. The <em>plist</em> is a file access property - list. The number of elements (objects) in the meta data cache - is <em>mdc_nelmts</em>. The total size of the raw data chunk - cache and the preemption policy is <em>rdcc_nbytes</em> and - <em>w0</em>. For <code>H5Pget_cache()</code> any (or all) of - the pointer arguments may be null pointers. - <p> - The RDCC_W0 value should be between 0 and 1 inclusive and - indicates how much chunks that have been fully read are - favored for preemption. A value of zero means fully read - chunks are treated no differently than other chunks (the - preemption is strictly LRU) while a value of one means fully - read chunks are always preempted before other chunks. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>int</em> <code>mdc_nelmts</code> - <dd>IN: Number of elements (objects) in the meta data cache. - <dt><em>size_t</em> <code>rdcc_nbytes</code> - <dd>IN: Total size of the raw data chunk cache, in bytes. - <dt><em>double</em> <code>rdcc_w0</code> - <dd>IN: Preemption policy. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetCache">H5Pget_cache</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pget_cache</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>*mdc_nelmts</code>, - <em>size_t</em> <code>*rdcc_nbytes</code>, - <em>double</em> <code>*rdcc_w0</code> - ) - <dt><strong>Purpose:</strong> - <dd>Retrieves maximun sizes of meta data cache and RDCC_WO. - <dt><strong>Description:</strong> - <dd>Retrieves the maximum possible number of elements in the meta - data cache and the maximum possible number of bytes and the - RDCC_W0 value in the raw data chunk cache. Any (or all) - arguments may be null pointers in which case the corresponding - datum is not returned. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier of the file access property list. - <dt><em>int</em> <code>*mdc_nelmts</code> - <dd>IN/OUT: Number of elements (objects) in the meta data cache. - <dt><em>size_t</em> <code>*rdcc_nbytes</code> - <dd>IN/OUT: Total size of the raw data chunk cache, in bytes. - <dt><em>double</em> <code>*rdcc_w0</code> - <dd>IN/OUT: Preemption policy. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetBuffer">H5Pset_buffer</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_buffer</code>(<em>hid_t</em> <code>plist</code>, - <em>size_t</em> <code>size</code>, - <em>void</em> <code>*tconv</code>, - <em>void</em> <code>*bkg</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets type conversion and background buffers. - <dt><strong>Description:</strong> - <dd> Given a dataset transfer property list, <code>H5Pset_buffer</code> - sets the maximum size - for the type conversion buffer and background buffer and - optionally supply pointers to application-allocated buffers. - If the buffer size is smaller than the entire amount of data - being transfered between application and file, and a type - conversion buffer or background buffer is required then - strip mining will be used. However, certain restrictions - apply for the size of buffer which can be used for strip - mining. For instance, when strip mining a 100x200x300 - hyperslab of a simple data space the buffer must be large - enough to hold a 1x200x300 slab. - <p> - If <code>tconv</code> and/or <code>bkg</code> are null pointers, - then buffers will be allocated and freed during the data transfer. - <p> - The default value for the maximum buffer is 1 Mb. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset transfer property list. - <dt><em>size_t</em> <code>size</code> - <dd>IN: Size for the type conversion and background buffers. - <dt><em>void</em> <code>tconv</code> - <dd>IN: Pointer to application-allocated type conversion buffer. - <dt><em>void</em> <code>bkg</code> - <dd>IN: Pointer to application-allocated background buffer. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetBuffer">H5Pget_buffer</a> - <dt><strong>Signature:</strong> - <dd><em>size_t</em> <code>H5Pget_buffer</code>(<em>hid_t</em> <code>plist</code>, - <em>void</em> <code>**tconv</code>, - <em>void</em> <code>**bkg</code> - ) - <dt><strong>Purpose:</strong> - <dd>Reads buffer settings. - <dt><strong>Description:</strong> - <dd><code>H5Pget_buffer</code> reads values previously set - with H5Pset_buffer(). - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset transfer property list. - <dt><em>void</em> <code>**tconv</code> - <dd>OUT: Address of the pointer to application-allocated - type conversion buffer. - <dt><em>void</em> <code>**bkg</code> - <dd>OUT: Address of the pointer to application-allocated - background buffer. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns buffer size if successful; - otherwise 0 on failure. -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetPreserve">H5Pset_preserve</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_preserve</code>(<em>hid_t</em> <code>plist</code>, - <em>hbool_t</em> <code>status</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets the dataset transfer property list status to TRUE or FALSE. - <dt><strong>Description:</strong> - <dd><code>H5Pset_preserve</code> sets the - dataset transfer property list status to TRUE or FALSE. - <p> - When reading or writing compound data types and the - destination is partially initialized and the read/write is - intended to initialize the other members, one must set this - property to TRUE. Otherwise the I/O pipeline treats the - destination datapoints as completely uninitialized. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset transfer property list. - <dt><em>hbool_t</em> <code>status</code> - <dd>IN: Status of for the dataset transfer property list - (TRUE/FALSE). - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetPreserve">H5Pget_preserve</a> - <dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Pget_preserve</code>(<em>hid_t</em> <code>plist</code>) - <dt><strong>Purpose:</strong> - <dd>Checks status of the dataset transfer property list. - <dt><strong>Description:</strong> - <dd><code>H5Pget_preserve</code> checks the status of the - dataset transfer property list. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset transfer property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns TRUE or FALSE if successful; - otherwise FAIL (-1). -</dl> - - -<!-- - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetCompression">H5Pset_compression</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_compression</code>(<em>hid_t</em> <code>plist</code>, - <em>H5Z_method_t</em> <code>method</code>, - <em>unsigned int</em> <code>flags</code>, - <em>size_t</em> <code>cd_size</code>, - <em>const void</em> <code>*client_data</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets compression method. - <dt><strong>Description:</strong> - <dd><code>H5Pset_compression</code> sets the compression method - in a dataset creation property list. This is a catch-all - function for defining compresion methods - and is intended to be called from a wrapper such as - <code>H5Pset_deflate()</code>. The dataset creation property - list <em>plist</em> is adjusted to use the specified - compression method. The <em>flags</em> is an 8-bit vector - which is stored in the file as part of the compression message - and passed to the compress and uncompress functions. The - <em>client_data</em> is a byte array of length - <em>cd_size</em> which is copied to the file and passed to the - compress and uncompress methods. - <p> - The FLAGS, CD_SIZE, and CLIENT_DATA are copied to the - property list and eventually to the file and passed to the - compression functions. - <p> - See <a href="Compression.html"><cite>Compression</cite></a> - in the <cite>HDF5 User's Guide</cite> for further information. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset creation property list. - <dt><em>H5Z_method_t</em> <code>method</code> - <dd>IN: Compression method, an integer from 16 to 225. - <dt><em>unsigned int</em> <code>flags</code> - <dd>IN: Compression flags. - <dt><em>size_t</em> <code>cd_size</code> - <dd>IN: Size of the byte array <code>client_data</code>. - <dt><em>const void</em> <code>*client_data</code> - <dd>IN: Client data byte array passed to the compression method. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - ---> - - -<!-- - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetCompression">H5Pget_compression</a> - <dt><strong>Signature:</strong> - <dd><em>H5Z_method_t</em> <code>H5Pget_compression</code>(<em>hid_t</em> <code>plist</code>, - <em>unsigned int</em> <code>*flags</code>, - <em>size_t</em> <code>*cd_size</code>, - <em>void</em> <code>*client_data</code> - ) - <dt><strong>Purpose:</strong> - <dd>Gets compression method. - <dt><strong>Description:</strong> - <dd><code>H5Pget_compression</code> gets the compression method - information from a dataset creation property list. - The <code>client_data</code> buffer is initially - <code>cd_size</code> bytes. On return, <code>client_data</code> - will be initialized with at most that many bytes, and - <code>cd_size</code> will contain the actual size of the - client data, which might be larger than its original value. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset creation property list. - <dt><em>unsigned int</em> <code>*flags</code> - <dd>OUT: Compression flags. - <dt><em>size_t</em> <code>*cd_size</code> - <dd>IN/OUT: Size of the <code>client_data</code> array. - <dt><em>void</em> <code>*client_data</code> - <dd>OUT: Byte array for the client data. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns compression method if successful; - otherwise FAIL (-1). -</dl> - ---> - - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-SetDeflate">H5Pset_deflate</a> - <dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Pset_deflate</code>(<em>hid_t</em> <code>plist</code>, - <em>int</em> <code>level</code> - ) - <dt><strong>Purpose:</strong> - <dd>Sets compression method and compression level. - <dt><strong>Description:</strong> - <dd><code>H5Pset_deflate</code> sets the compression method for a - dataset creation property list to <code>H5D_COMPRESS_DEFLATE</code> - and the compression level to <code>level<>/code>, which should - be a value from zero to nine, inclusive. - Lower compression levels are faster but result in less compression. - This is the same algorithm as used by the GNU gzip program. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset creation property list. - <dt><em>int</em> <code>level</code> - <dd>IN: Compression level. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<!-- - -<hr> -<dl> - <dt><strong>Name:</strong> <a name="Property-GetDeflate">H5Pget_deflate</a> - <dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Pget_deflate</code>(<em>hid_t</em> <code>plist</code> - ) - <dt><strong>Purpose:</strong> - <dd>Returns the deflate compression level from a dataset creation - property list. - <dt><strong>Description:</strong> - <dd><code>H5Pget_deflate</code> returns the deflate compression level - from a dataset creation property list that uses that method. - <dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>plist</code> - <dd>IN: Identifier for the dataset creation property list. - </dl> - <dt><strong>Returns:</strong> - <dd>Returns compression level, a value between 0 and 9, if successful. - Otherwise returns FAIL (-1). -</dl> - ---> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -H5P -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 25 August 1998 - -</body> -</html> - diff --git a/doc/src/RM_H5R.html b/doc/src/RM_H5R.html deleted file mode 100644 index 4e1fd7c..0000000 --- a/doc/src/RM_H5R.html +++ /dev/null @@ -1,248 +0,0 @@ -<html> -<head><title> -HDF5/H5R Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -H5R -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5R: Ragged Array Interface</h1> -</center> - -<h2>Ragged Array API Functions</h2> -<table border=1> -<tr><th align=left> -<font color=red> -The H5R Interface is strictly experimental at this time; -the interface may change dramatically or support for ragged arrays -may be unavailable in future in releases. As a result, future releases -may be unable to retrieve data stored with this interface. -<p><center>Use these functions at your own risk!<br> -Do not create any archives using this interface!</center> -</font> -</th></tr> -</table> -<p> -These functions enable the user to store and retrieve data in ragged arrays. - - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Ragged-Create">H5Rcreate</a> - <li><a href="#Ragged-Open">H5Ropen</a> - <li><a href="#Ragged-Close">H5Rclose</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Ragged-Write">H5Rwrite</a> - <li><a href="#Ragged-Read">H5Rread</a> -</ul> -</td></tr> -</table> - -<p> - - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Ragged-Create">H5Rcreate</a> -<dt><strong>Signature:</strong> - <dd><em> </em> <code>H5Rcreate</code>(<em> </em> <code> </code>, - <em> </em> <code> </code>, - <em> </em> <code> </code> - ) -<dt><strong>Purpose:</strong> - <dd> -<dt><strong>Description:</strong> - <dd><code>H5Rcreate</code> -<dt><strong>Parameters:</strong> - <dl> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Ragged-Open">H5Ropen</a> -<dt><strong>Signature:</strong> - <dd><em> </em> <code>H5Ropen</code>(<em> </em> <code> </code>, - <em> </em> <code> </code>, - <em> </em> <code> </code> - ) -<dt><strong>Purpose:</strong> - <dd> -<dt><strong>Description:</strong> - <dd><code>H5Ropen</code> -<dt><strong>Parameters:</strong> - <dl> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Ragged-Close">H5Rclose</a> -<dt><strong>Signature:</strong> - <dd><em> </em> <code>H5Rclose</code>(<em> </em> <code> </code>, - <em> </em> <code> </code>, - <em> </em> <code> </code> - ) -<dt><strong>Purpose:</strong> - <dd> -<dt><strong>Description:</strong> - <dd><code>H5Rclose</code> -<dt><strong>Parameters:</strong> - <dl> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Ragged-Write">H5Rwrite</a> -<dt><strong>Signature:</strong> - <dd><em> </em> <code>H5Rwrite</code>(<em> </em> <code> </code>, - <em> </em> <code> </code>, - <em> </em> <code> </code> - ) -<dt><strong>Purpose:</strong> - <dd> -<dt><strong>Description:</strong> - <dd><code>H5Rwrite</code> - <p> - Datatype conversion takes place at the time of a read or write - and is automatic. See the - <a href="Datatypes.html#Datatypes-DataConversion">Data Conversion</a> - section of <cite>The Data Type Interface (H5T)</cite> in the - <cite>HDF5 User's Guide</cite> for a discussion of - data conversion, including the range of conversions currently - supported by the HDF5 libraries. -<dt><strong>Parameters:</strong> - <dl> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Ragged-Read">H5Rread</a> -<dt><strong>Signature:</strong> - <dd><em> </em> <code>H5Rread</code>(<em> </em> <code> </code>, - <em> </em> <code> </code>, - <em> </em> <code> </code> - ) -<dt><strong>Purpose:</strong> - <dd> -<dt><strong>Description:</strong> - <dd><code>H5Rread</code> - <p> - Datatype conversion takes place at the time of a read or write - and is automatic. See the - <a href="Datatypes.html#Datatypes-DataConversion">Data Conversion</a> - section of <cite>The Data Type Interface (H5T)</cite> in the - <cite>HDF5 User's Guide</cite> for a discussion of - data conversion, including the range of conversions currently - supported by the HDF5 libraries. -<dt><strong>Parameters:</strong> - <dl> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - <dt><em> </em> <code> </code> - <dd> - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -H5R -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 1 September 1998 - -</body> -</html> diff --git a/doc/src/RM_H5S.html b/doc/src/RM_H5S.html deleted file mode 100644 index ae69b20..0000000 --- a/doc/src/RM_H5S.html +++ /dev/null @@ -1,749 +0,0 @@ -<html> -<head><title> -HDF5/H5S Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -H5S -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5S: Dataspace Interface</h1> -</center> - -<h2>Dataspace Object API Functions</h2> - -These functions create and manipulate the dataspace in which to store the -elements of a dataset. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Dataspace-Create">H5Screate</a> - <li><a href="#Dataspace-CreateSimple">H5Screate_simple</a> - <li><a href="#Dataspace-IsSimple">H5Sis_simple</a> - <li><a href="#Dataspace-OffsetSimple">H5Soffset_simple</a> - <li><a href="#Dataspace-Copy">H5Scopy</a> - <li><a href="#Dataspace-ExtentClass">H5Sextent_class</a> - <li><a href="#Dataspace-ExtentCopy">H5Sextent_copy</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Dataspace-SetExtentSimple">H5Sset_extent_simple</a> - <li><a href="#Dataspace-SetExtentNone">H5Sset_extent_none</a> - <li><a href="#Dataspace-SelectNpoints">H5Sget_select_npoints</a> - <li><a href="#Dataspace-ExtentDims">H5Sget_simple_extent_dims</a> - <li><a href="#Dataspace-ExtentNdims">H5Sget_simple_extent_ndims</a> - <li><a href="#Dataspace-ExtentNpoints">H5Sget_simple_extent_npoints</a> - <li><a href="#Dataspace-GetSpaceType">H5Sget_space_type</a> -</ul> -</td><td> </td><td valign=top> -<ul> - <li><a href="#Dataspace-SelectElements">H5Sselect_elements</a> - <li><a href="#Dataspace-SelectAll">H5Sselect_all</a> - <li><a href="#Dataspace-SelectNone">H5Sselect_none</a> - <li><a href="#Dataspace-SelectValid">H5Sselect_valid</a> - <li><a href="#Dataspace-SelectHyperslab">H5Sselect_hyperslab</a> - <li><a href="#Dataspace-Close">H5Sclose</a> -</ul> -</td></tr> -</table> - -<p> -The following H5S functions are included in the HDF5 specification, -but have not yet been implemented. They are described in the -<a href="Dataspaces.html">The Dataspace Interface (H5S)</a> section -of the <cite>HDF5 User's Guide.</cite>. -<table border=0> -<tr><td valign=top> -<ul> - <li>H5Scommit - <li>H5Sis_subspace - <li>H5Slock - <li>H5Sopen -</ul> -</td><td> </td><td valign=top> -<ul> - <li>H5Sselect_name - <li>H5Sselect_op - <li>H5Sselect_order -</ul> -</td><td> </td><td valign=top> -<ul> - <li>H5Ssubspace - <li>H5Ssubspace_name - <li>H5Ssubspace_location -</ul> -</td></tr> -</table> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-Create">H5Screate</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Screate</code>(<em>H5S_class_t</em> <code>type</code>) -<dt><strong>Purpose:</strong> - <dd>Creates a new dataspace of a specified type. -<dt><strong>Description:</strong> - <dd><code>H5Screate</code> creates a new dataspace of a particular - <code>type</code>. - The types currently supported are <code>H5S_SCALAR</code>, - <code>H5S_SIMPLE</code>, and <code>H5S_NONE</code>; - others are planned to be added later. The <code>H5S_NONE</code> - dataspace can only hold a selection, not an extent. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5S_class_t</em> <code>type</code> - <dd>The type of dataspace to be created. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataspace identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-CreateSimple">H5Screate_simple</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Screate_simple</code>(<em>int</em> <code>rank</code>, - <em>const hsize_t *</em> <code>dims</code>, - <em>const hsize_t *</em> <code>maxdims</code> - ) -<dt><strong>Purpose:</strong> - <dd>Creates a new simple data space and opens it for access. -<dt><strong>Description:</strong> - <dd><code>H5Screate_simple</code> creates a new simple data space - and opens it for access. The <code>rank</code> is the number of - dimensions used in the dataspace. - The <code>dims</code> argument is the size - of the simple dataset and the <code>maxdims</code> argument is - the upper limit on the size of the dataset. <code>maxdims</code> - may be the null pointer in which case the upper limit is the - same as <code>dims</code>. If an element of <code>maxdims</code> - is zero then the corresponding dimension is unlimited, otherwise - no element of <code>maxdims</code> should be smaller than the - corresponding element of <code>dims</code>. The dataspace - identifier returned from this function should be released with - <code>H5Sclose</code> or resource leaks will occur. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>int</em> <code>rank</code> - <dd>Number of dimensions of dataspace. - <dt><em>const hsize_t *</em> <code>dims</code> - <dd>An array of the size of each dimension. - <dt><em>const hsize_t *</em> <code>maxdims</code> - <dd>An array of the maximum size of each dimension. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataspace identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-Copy">H5Scopy</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Scopy</code>(<em>hid_t </em><code>space_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Creates an exact copy of a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Scopy</code> creates a new dataspace which is an exact - copy of the dataspace identified by <code>space_id</code>. - The dataspace identifier returned from this function should be - released with <code>H5Sclose</code> or resource leaks will occur. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Identifier of dataspace to copy. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataspace identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SelectElements">H5Sselect_elements</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Sselect_elements</code>(<em>hid_t </em><code>space_id</code>, - <em>dh5s_selopt_t</em> <code>op</code>, - <em>const size_t</em> <code>num_elements</code>, - <em>const hssize_t *</em><code>coord</code>[ ] - ) -<dt><strong>Purpose:</strong> - <dd>Selects array elements to be included in the selection for a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sselect_elements</code> selects array elements to be - included in the selection for the <code>space_id</code> - dataspace. The number of elements selected must be set with - the <code>num_elements</code>. The <code>coord</code> array - is a two-dimensional array of size <em>dataspace rank</em> - by <code>num_elements</code> (ie. a list of coordinates in - the array). The order of the element coordinates in the - <code>coord</code> array also specifies the order in which - the array elements are iterated through when I/O is performed. - Duplicate coordinate locations are not checked for. - <P> - The selection operator <code>op</code> determines how the - new selection is to be combined with the previously existing - selection for the dataspace. Currently, only the - <code>H5S_SELECT_SET</code> operator is supported, which - replaces the existing selection with the parameters from - this call. When operators other than <code>H5S_SELECT_SET</code> - are used to combine a new selection with an existing selection, - the selection ordering is reset to 'C' array ordering. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Identifier of the dataspace. - <dt><em>dh5s_selopt_t</em> <code>op</code> - <dd>operator specifying how the new selection is to be - combined with the existing selection for the dataspace. - <dt><em>const size_t</em> <code>num_elements</code> - <dd>Number of elements to be selected. - <dt><em>const hssize_t *</em><code>coord</code>[ ] - <dd>A 2-dimensional array specifying the coordinates of the - elements being selected. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SelectAll">H5Sselect_all</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Sselect_all</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Selects the entire dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sselect_all</code> selects the entire extent - of the dataspace <code>space_id</code>. - <p> - More specifically, <code>H5Sselect_all</code> selects - the special <tt>5S_SELECT_ALL</tt> region for the dataspace - <code>space_id</code>. <tt>H5S_SELECT_ALL</tt> selects the - entire dataspace for any dataspace it is applied to. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>IN: The identifier for the dataspace in which the - selection is being made. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SelectNone">H5Sselect_none</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Sselect_none</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Resets the selection region to include no elements. -<dt><strong>Description:</strong> - <dd><code>H5Sselect_none</code> resets the selection region - for the dataspace <code>space_id</code> to include no elements. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>IN: The identifier for the dataspace in which the - selection is being reset. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SelectValid">H5Sselect_valid</a> -<dt><strong>Signature:</strong> - <dd><em>hbool_t</em> <code>H5Sselect_valid</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Verifies that the selection is within the extent of the dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sselect_valid</code> verifies that the selection - for the dataspace <code>space_id</code> is within the extent - of the dataspace if the current offset for the dataspace is used. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>The identifier for the dataspace in which the - selection is being reset. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns <tt>TRUE</tt> if the selection is contained within - the extent and <tt>FALSE</tt> if it is not. - Returns <tt>FAIL</tt> (<tt>-1</tt>) on error conditions - such as the selection or extent not being defined. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-ExtentNpoints">H5Sget_simple_extent_npoints</a> -<dt><strong>Signature:</strong> - <dd><em>hsize_t</em> <code>H5Sget_simple_extent_npoints</code>(<em>hid_t </em><code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Determines the number of elements in a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sget_simple_extent_npoints</code> determines the number of elements - in a dataspace. For example, a simple 3-dimensional dataspace - with dimensions 2, 3, and 4 would have 24 elements. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>ID of the dataspace object to query - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the number of elements in the dataspace if successful; - otherwise returns 0. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SelectNpoints">H5Sget_select_npoints</a> -<dt><strong>Signature:</strong> - <dd><em>hsize_t</em> <code>H5Sget_select_npoints</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Determines the number of elements in a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sget_select_npoints</code> determines the number of elements - in the current selection of a dataspace. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Dataspace identifier. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the number of elements in the selection if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-ExtentNdims">H5Sget_simple_extent_ndims</a> -<dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Sget_simple_extent_ndims</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Determines the dimensionality of a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sget_simple_extent_ndims</code> determines the dimensionality (or rank) - of a dataspace. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Identifier of the dataspace - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the number of dimensions in the dataspace if successful; - otherwise FAIL (-1) -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-ExtentDims">H5Sget_simple_extent_dims</a> -<dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Sget_simple_extent_dims</code>(<em>hid_t</em> <code>space_id</code>, - <em>hsize_t *</em><code>dims</code>, - <em>hsize_t *</em><code>maxdims</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves dataspace dimension size and maximum size. -<dt><strong>Description:</strong> - <dd><code>H5Sget_simple_extent_dims</code> returns the size and maximum sizes - of each dimension of a dataspace through the <code>dims</code> - and <code>maxdims</code> parameters. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>IN: Identifier of the dataspace object to query - <dt><em>hsize_t *</em><code>dims</code> - <dd>OUT: Pointer to array to store the size of each dimension. - <dt><em>hsize_t *</em><code>maxdims</code> - <dd>OUT: Pointer to array to store the maximum size of each dimension. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the number of dimensions in the dataspace if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-GetSpaceType">H5Sget_space_type</a> -<dt><strong>Signature:</strong> - <dd><em>H5S_class_t</em> <code>H5Sget_space_type</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Determine the current class of a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sget_space_type</code> queries a dataspace to determine the - current class of a dataspace. - <p> - The function returns a class name, one of the following: - <code>H5S_SCALAR</code>, - <code>H5S_SIMPLE</code>, or - <code>H5S_NONE</code>. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Dataspace identifier. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataspace class name if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SetExtentSimple">H5Sset_extent_simple</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Sset_extent_simple</code>(<em>hid_t</em> <code>space_id</code>, - <em>int</em> <code>rank</code>, - <em>const hsize_t *</em><code>current_size</code>, - <em>const hsize_t *</em><code>maximum_size</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets or resets the size of an existing dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sset_extent_simple</code> sets or resets the size of - an existing dataspace. - <p> - <code>rank</code> is the dimensionality, or number of - dimensions, of the dataspace. - <p> - <code>current_size</code> is an array of size <code>rank</code> - which contains the new size of each dimension in the dataspace. - <code>maximum_size</code> is an array of size <code>rank</code> - which contains the maximum size of each dimension in the - dataspace. - <p> - Any previous extent is removed from the dataspace, the dataspace - type is set to <code>H5S_SIMPLE</code>, and the extent is set as - specified. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Dataspace identifier. - <dt><em>int</em> <code>rank</code> - <dd>Rank, or dimensionality, of the dataspace. - <dt><em>const hsize_t *</em><code>current_size</code> - <dd>Array containing current size of dataspace. - <dt><em>const hsize_t *</em><code>maximum_size</code> - <dd>Array containing maximum size of dataspace. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataspace identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-IsSimple">H5Sis_simple</a> -<dt><strong>Signature:</strong> - <dd><em>hbool_t </em><code>H5Sis_simple</code>(<em>hid_t </em><code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Determines whether a dataspace is a simple dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sis_simple</code> determines whether a dataspace is - a simple dataspace. [Currently, all dataspace objects are simple - dataspaces, complex dataspace support will be added in the future] -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Identifier of the dataspace to query - </dl> -<dt><strong>Returns:</strong> - <dd>Returns TRUE or FALSE if Successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-OffsetSimple">H5Soffset_simple</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Soffset_simple</code>(<em>hid_t</em> <code>space_id</code>, - <em>const hssize_t *</em><code>offset</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the offset of a simple dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Soffset_simple</code> sets the offset of a - simple dataspace <code>space_id</code>. The <code>offset</code> - array must be the same number of elements as the number of - dimensions for the dataspace. If the <code>offset</code> - array is set to <TT>NULL</TT>, the offset for the dataspace - is reset to 0. - <p> - This function allows the same shaped selection to be moved - to different locations within a dataspace without requiring it - to be redefined. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>IN: The identifier for the dataspace object to reset. - <dt><em>const hssize_t *</em><code>offset</code> - <dd>IN: The offset at which to position the selection. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-ExtentClass">H5Sextent_class</a> -<dt><strong>Signature:</strong> - <dd><em>H5S_class_t</em> <code>H5Sextent_class</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Determine the current class of a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sextent_class</code> queries a dataspace to determine the - current class of a dataspace. - <p> - The function returns a class name, one of the following: - <code>H5S_SCALAR</code>, - <code>H5S_SIMPLE</code>. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Dataspace identifier. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a dataspace class name if successful; - otherwise H5S_NO_CLASS (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-ExtentCopy">H5Sextent_copy</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Sextent_copy</code>(<em>hid_t</em> <code>dest_space_id</code>, - <em>hid_t</em> <code>source_space_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Copies the extent of a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sextent_copy</code> copies the extent from - <code>source_space_id</code> to <code>dest_space_id</code>. - This action may change the type of the dataspace. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>dest_space_id</code> - <dd>IN: The identifier for the dataspace from which - the extent is copied. - <dt><em>hid_t</em> <code>source_space_id</code> - <dd>IN: The identifier for the dataspace to which - the extent is copied. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SetExtentNone">H5Sset_extent_none</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Sset_extent_none</code>(<em>hid_t</em> <code>space_id</code>) -<dt><strong>Purpose:</strong> - <dd>Removes the extent from a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sset_extent_none</code> removes the extent from - a dataspace and sets the type to <tt>H5S_NONE</tt>. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>The identifier for the dataspace from which - the extent is to be removed. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-SelectHyperslab">H5Sselect_hyperslab</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Sselect_hyperslab</code>(<em>hid_t</em> <code>space_id</code>, - <em>h5s_selopt_t</em><code>op</code>, - <em>const hssize_t *</em><code>start</code>, - <em>const hsize_t *</em><code>stride</code> - <em>const hsize_t *</em><code>count</code>, - <em>const hsize_t *</em><code>block</code> - ) -<dt><strong>Purpose:</strong> - <dd>Selects a hyperslab region to add to the current selected region. -<dt><strong>Description:</strong> - <dd><code>H5Sselect_hyperslab</code> selects a hyperslab region - to add to the current selected region for the dataspace - specified by <code>space_id</code>. - <p> - The <code>start</code>, <code>stride</code>, <code>count</code>, - and <code>block</code> arrays must be the same size as the rank - of the dataspace. - <p> - The selection operator <code>op</code> determines how the new - selection is to be combined with the already existing selection - for the dataspace. - <p> - Currently, only the <code>H5S_SELECT_SET</code> operator is - supported; it replaces the existing selection with the - parameters from this call. Overlapping blocks are not - supported with the <code>H5S_SELECT_SET</code> operator. -<P> -The <code>start</code> array determines the starting coordinates -of the hyperslab -to select. -<p> -The <code>stride</code> array chooses array locations -from the dataspace -with each value in the <code>stride</code> array determining how -many elements to move -in each dimension. Setting a value in the <code>stride</code> -array to 1 moves to -each element in that dimension of the dataspace; setting a value of 2 in a -location in the <code>stride</code> array moves to every other -element in that -dimension of the dataspace. In other words, the <code>stride</code> -determines the -number of elements to move from the <code>start</code> location -in each dimension. -Stride values of 0 are not allowed. If the <code>stride</code> -parameter is <code>NULL</code>, -a contiguous hyperslab is selected (as if each value in the -<code>stride</code> array -was set to all 1's). -<p> -The <code>count</code> array determines how many blocks to -select from the dataspace, in each dimension. -<p> -The <code>block</code> array determines -the size of the element block selected from the dataspace. -If the <code>block</code> -parameter is set to <code>NULL</code>, the block size defaults -to a single element -in each dimension (as if the <code>block</code> array was set to all 1's). -<P> -For example, in a 2-dimensional dataspace, setting -<code>start</code> to [1,1], -<code>stride</code> to [4,4], <code>count</code> to [3,7], and -<code>block</code> to [2,2] selects -21 2x2 blocks of array elements starting with location (1,1) and selecting -blocks at locations (1,1), (5,1), (9,1), (1,5), (5,5), etc. -<P> -Regions selected with this function call default to C order iteration when -I/O is performed. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>IN: Identifier of dataspace selection to modify - <dt><em>H5S_seloper_t</em> <code>op</code> - <dd>IN: Operation to perform on current selection. - <dt><em>const hssize_t *</em><code>start</code> - <dd>IN: Offset of start of hyperslab - <dt><em>const hsize_t *</em><code>count</code> - <dd>IN: Number of blocks included in hyperslab. - <dt><em>const hsize_t *</em><code>stride</code> - <dd>IN: Hyperslab stride. - <dt><em>const hsize_t *</em><code>block</code> - <dd>IN: Size of block in hyperslab. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Dataspace-Close">H5Sclose</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Sclose</code>(<em>hid_t </em><code>space_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Releases and terminates access to a dataspace. -<dt><strong>Description:</strong> - <dd><code>H5Sclose</code> releases a dataspace. - Further access through the dataspace identifier is illegal. - Failure to release a dataspace with this call will - result in resource leaks. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>space_id</code> - <dd>Identifier of dataspace to release. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -H5S -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 1 September 1998 - -</body> -</html> diff --git a/doc/src/RM_H5T.html b/doc/src/RM_H5T.html deleted file mode 100644 index 086b9cc..0000000 --- a/doc/src/RM_H5T.html +++ /dev/null @@ -1,1769 +0,0 @@ -<html> -<head><title> -HDF5/H5T Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -H5T -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5T: Datatype Interface</h1> -</center> - -<h2>Datatype Object API Functions</h2> - -These functions create and manipulate the datatype which describes elements -of a dataset. - -<table border=0> -<tr><td valign=top> -<i>General Datatype Operations</i> - <li><a href="#Datatype-Create">H5Tcreate</a> - <li><a href="#Datatype-Open">H5Topen</a> - <li><a href="#Datatype-Commit">H5Tcommit</a> - <li><a href="#Datatype-Committed">H5Tcommitted</a> - <li><a href="#Datatype-Copy">H5Tcopy</a> - <li><a href="#Datatype-Equal">H5Tequal</a> - <li><a href="#Datatype-Lock">H5Tlock</a> - <li><a href="#Datatype-Close">H5Tclose</a> -<p> -<i>Atomic Datatype Properties</i> - <li><a href="#Datatype-GetClass">H5Tget_class</a> - <li><a href="#Datatype-GetSize">H5Tget_size</a> - <li><a href="#Datatype-SetSize">H5Tset_size</a> - <li><a href="#Datatype-GetOrder">H5Tget_order</a> - <li><a href="#Datatype-SetOrder">H5Tset_order</a> - <li><a href="#Datatype-GetPrecision">H5Tget_precision</a> - <li><a href="#Datatype-SetPrecision">H5Tset_precision</a> - <li><a href="#Datatype-GetOffset">H5Tget_offset</a> - <li><a href="#Datatype-SetOffset">H5Tset_offset</a> -</td><td> </td><td valign=top> - <li><a href="#Datatype-GetPad">H5Tget_pad</a> - <li><a href="#Datatype-SetPad">H5Tset_pad</a> - <li><a href="#Datatype-GetSign">H5Tget_sign</a> - <li><a href="#Datatype-SetSign">H5Tset_sign</a> - <li><a href="#Datatype-GetFields">H5Tget_fields</a> - <li><a href="#Datatype-SetFields">H5Tset_fields</a> - <li><a href="#Datatype-GetEbias">H5Tget_ebias</a> - <li><a href="#Datatype-SetEbias">H5Tset_ebias</a> - <li><a href="#Datatype-GetNorm">H5Tget_norm</a> - <li><a href="#Datatype-SetNorm">H5Tset_norm</a> - <li><a href="#Datatype-GetInpad">H5Tget_inpad</a> - <li><a href="#Datatype-SetInpad">H5Tset_inpad</a> - <li><a href="#Datatype-GetCset">H5Tget_cset</a> - <li><a href="#Datatype-SetCset">H5Tset_cset</a> - <li><a href="#Datatype-GetStrpad">H5Tget_strpad</a> - <li><a href="#Datatype-SetStrpad">H5Tset_strpad</a> -<p> -<i>Properties of Compound Types</i> - <li><a href="#Datatype-GetClass">H5Tget_class</a> - <li><a href="#Datatype-GetSize">H5Tget_size</a> -</td><td> </td><td valign=top> - <li><a href="#Datatype-GetNmembers">H5Tget_nmembers</a> - <li><a href="#Datatype-GetMemberName">H5Tget_member_name</a> - <li><a href="#Datatype-GetMemberOffset">H5Tget_member_offset</a> - <li><a href="#Datatype-GetMemberDims">H5Tget_member_dims</a> - <li><a href="#Datatype-GetMemberType">H5Tget_member_type</a> - <li><a href="#Datatype-Insert">H5Tinsert</a> - <li><a href="#Datatype-Pack">H5Tpack</a> - <li><a href="#Datatype-InsertArray">H5Tinsert_array</a> -<p> -<i>Conversion Functions</i> - <li><a href="#Datatype-Convert">H5Tconvert</a> - <li><a href="#Datatype-Find">H5Tfind</a> - <li><a href="#Datatype-SetOverflow">H5Tset_overflow</a> - <li><a href="#Datatype-GetOverflow">H5Tget_overflow</a> - <li><a href="#Datatype-RegisterHard">H5Tregister_hard</a> - <li><a href="#Datatype-RegisterSoft">H5Tregister_soft</a> - <li><a href="#Datatype-Unregister">H5Tunregister</a> -</td></tr> -</table> - -<p> -The Datatype interface, H5T, provides a mechanism to describe the - storage format of individual data points of a data set and is - hopefully designed in such a way as to allow new features to be - easily added without disrupting applications that use the data - type interface. A dataset (the H5D interface) is composed of a - collection or raw data points of homogeneous type organized - according to the data space (the H5S interface). - -<p> -A datatype is a collection of datatype properties, all of - which can be stored on disk, and which when taken as a whole, - provide complete information for data conversion to or from that - datatype. The interface provides functions to set and query - properties of a datatype. - -<p> -A <em>data point</em> is an instance of a <em>datatype</em>, - which is an instance of a <em>type class</em>. We have defined - a set of type classes and properties which can be extended at a - later time. The atomic type classes are those which describe - types which cannot be decomposed at the datatype interface - level; all other classes are compound. - -<p> -See <a href="Datatypes.html"><cite>The Datatype Interface (H5T)</cite></a> -in the <cite>HDF5 User's Guide</cite> for further information, including a complete list of all supported datatypes. - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Open">H5Topen</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em><code>H5Topen</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em> <code>name</code> - ) -<dt><strong>Purpose:</strong> - <dd>Opens a named datatype. -<dt><strong>Description:</strong> - <dd><code>H5Topen</code> opens a named datatype at the location - specified by <code>loc_id</code> and returns an identifier - for the datatype. <code>loc_id</code> is either a file or - group identifier. The identifier should eventually be closed - by calling <code>H5Tclose()</code> to release resources. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>A file, group, or datatype identifier. - <dt><em>const char *</em> <code>name</code> - <dd>A datatype name. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a named datatype identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Commit">H5Tcommit</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em><code>H5Tcommit</code>(<em>hid_t</em> <code>loc_id</code>, - <em>const char *</em> <code>name</code>, - <em>hid_t</em> <code>type</code> - ) -<dt><strong>Purpose:</strong> - <dd>Commits a transient datatype to a file, creating a new named datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tcommit</code> commits a transient datatype - (not immutable) to a file, turned it into a named datatype. - The <code>loc_id</code> is either a file or group identifier - which, when combined with <code>name</code>, refers to a new - named datatype. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>loc_id</code> - <dd>A file or group identifier. - <dt><em>const char *</em> <code>name</code> - <dd>A datatype name. - <dt><em>hid_t</em> <code>type</code> - <dd>A datatype identifier. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Committed">H5Tcommitted</a> -<dt><strong>Signature:</strong> - <dd><em>hbool_t</em><code>H5Tcommitted</code>(<em>hid_t</em> <code>type</code>) -<dt><strong>Purpose:</strong> - <dd>Determines whether a datatype is a named type or a transient type. -<dt><strong>Description:</strong> - <dd><code>H5Tcommitted</code> queries a type to determine whether - the type specified by the <code>type</code> identifier - is a named type or a transient type. If this function returns - a positive value, then the type is named (that is, it has been - committed, perhaps by some other application). Datasets which - return committed datatypes with <code>H5Dget_type()</code> are - able to share the datatype with other datasets in the same file. -<dt><strong>Parameters:</strong> - <dl> - <dt>hid_t</em> <code>type</code> - <dd>Datatype identifier. - </dl> -<dt><strong>Returns:</strong> - <dd>The successful return values are TRUE if committed, else FALSE. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-InsertArray">H5Tinsert_array</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em><code>H5Tinsert_array</code>(<em>hid_t</em> <code>parent_id</code>, - <em>const char *</em><code>name</code>, - <em>size_t</em> <code>offset</code>, - <em>int</em> <code>ndims</code>, - <em>const size_t *</em><code>dim</code>, - <em>const int *</em><code>perm</code>, - <em>hid_t</em> <code>member_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Adds an array member to a compound datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tinsert_array</code> adds a new member to the - compound datatype <code>parent_id</code>. - The member is an array with <code>ndims</code> dimensionality - and the size of the array is </em><code>dim</code>. - The new member's name, <code>name</code>, must be unique - within the compound datatype. - The <code>offset</code> argument defines the start of the - member in an instance of the compound datatype and - <code>member_id</code> is the type identifier of the new member. - The total member size should be relatively small. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>parent_id</code> - <dd>Identifier of the parent compound datatype. - <dt><em>const char *</em><code>name</code> - <dd>Name of new member. - <dt><em>size_t</em> <code>offset</code> - <dd>Offset to start of new member within compound datatype. - <dt><em>int</em> <code>ndims</code> - <dd>Dimensionality of new member. - <dt><em>const size_t *</em><code>dim</code> - <dd>Size of new member array. - <dt><em>const int *</em><code>perm</code> - <dd>Pointer to buffer to store the permutation vector of - the field. - <dt><em>hid_t</em> <code>member_id</code> - <dd>Identifier of the datatype of the new member. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Find">H5Tfind</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_conv_t</em> <code>H5Tfind</code>(<em>hid_t</em> <code>src_id</code>, - <em>hid_t</em> <code>dst_id</code>, - <em>H5T_cdata_t **</em><code>pcdata</code> - ) -<dt><strong>Purpose:</strong> - <dd>Finds a conversion function. -<dt><strong>Description:</strong> - <dd><code>H5Tfind</code> finds a conversion function that can - handle a conversion from type <code>src_id</code> to type - <code>dst_id</code>. - The <code>pcdata</code> argument is a pointer to a pointer - to type conversion data which was created and initialized - by the soft type conversion function of this path when the - conversion function was installed on the path. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>src_id</code> - <dd>Identifier for the source datatype. - <dt><em>hid_t</em> <code>dst_id</code> - <dd>Identifier for the destination datatype. - <dt><em>H5T_cdata_t **</em><code>pcdata</code> - <dd>Pointer to type conversion data. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a pointer to a suitable conversion function if successful. - Otherwise returns NULL. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Convert">H5Tconvert</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Tconvert</code>(<em>hid_t</em> <code>src_id</code>, - <em>hid_t</em> <code>dst_id</code>, - <em>size_t</em> <code>nelmts</code>, - <em>void *</em><code>buf</code>, - <em>void *</em><code>background</code> - ) -<dt><strong>Purpose:</strong> - <dd>Converts data from between specified datatypes. -<dt><strong>Description:</strong> - <dd><code>H5Tconvert</code> converts <code>nelmts</code> elements - from the type specified by the <code>src_id</code> identifier - to type <code>dst_id</code>. - The source elements are packed in <code>buf</code> and on return - the destination will be packed in <code>buf</code>. - That is, the conversion is performed in place. - The optional background buffer is an array of <code>nelmts</code> - values of destination type which are merged with the converted - values to fill in cracks (for instance, <code>background</code> - might be an array of structs with the <code>a</code> and - <code>b</code> fields already initialized and the conversion - of <code>buf</code> supplies the <code>c</code> and <code>d</code> - field values). -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>src_id</code> - <dd>Identifier for the source datatype. - <dt><em>hid_t</em> <code>dst_id</code> - <dd>Identifier for the destination datatype. - <dt><em>size_t</em> <code>nelmts</code> - <dd>Size of array <code>buf</code>. - <dt><em>void *</em><code>buf</code> - <dd>Array containing pre- and post-conversion values. - <dt><em>void *</em><code>background</code> - <dd>Optional background buffer. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetOverflow">H5Tset_overflow</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Tset_overflow</code>(<em>H5T_overflow_t</em> <code>func</code>) -<dt><strong>Purpose:</strong> - <dd>Sets the overflow handler to a specified function. -<dt><strong>Description:</strong> - <dd><code>H5Tset_overflow</code> sets the overflow handler - to be the function specified by <code>func</code>. - <code>func</code> will be called for all datatype conversions that - result in an overflow. - <p> - See the definition of <code>H5T_overflow_t</code> in - <code>H5Tpublic.h</code> for documentation - of arguments and return values. - The prototype for <code>H5T_overflow_t</code> is as follows:<br> - <code>herr_t (*H5T_overflow_t)(hid_t src_id, hid_t dst_id, - void *src_buf, void *dst_buf); - </code> - <p> - The NULL pointer may be passed to remove the overflow handler. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5T_overflow_t</em> <code>func</code> - <dd>Overflow function. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetOverflow">H5Tget_overflow</a> -<dt><strong>Signature:</strong> - - -H5Tget_overflow () - <dd><em>H5T_overflow_t</em> <code>H5Tget_overflow</code>(<code>void</code>) -<dt><strong>Purpose:</strong> - <dd>Returns a pointer to the current global overflow function. -<dt><strong>Description:</strong> - <dd><code>H5Tset_overflow</code> returns a pointer - to the current global overflow function. - This is an application-defined function that is called whenever a - datatype conversion causes an overflow. -<dt><strong>Parameters:</strong> - <dl> - <dt>None. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a pointer to an application-defined function if successful. - Otherwise returns NULL; this can happen if no overflow handling - function is registered. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Create">H5Tcreate</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Tcreate</code>(<em>H5T_class_t </em><code>class</code>, - <em>size_t</em><code>size</code> - ) -<dt><strong>Purpose:</strong> - <dd>Creates a new dataype. -<dt><strong>Description:</strong> - <dd><code>H5Tcreate</code> creates a new dataype of the specified - class with the specified number of bytes. - Currently, only the <code>H5T_COMPOUND</code> datatype class is - supported with this function. Use <code>H5Tcopy</code> - to create integer or floating-point datatypes. - The datatype identifier returned from this function should be - released with <code>H5Tclose</code> or resource leaks will result. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5T_class_t</em> <code>class</code> - <dd>Class of datatype to create. - <dt><em>size_t</em> <code>size</code> - <dd>The number of bytes in the datatype to create. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns datatype identifier if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Copy">H5Tcopy</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t </em><code>H5Tcopy</code>(<em>hid_t </em><code>type_id</code>) -<dt><strong>Purpose:</strong> - <dd>Copies an existing datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tcopy</code> copies an existing datatype. - The returned type is always transient and unlocked. - <p> - The <code>type_id</code> argument can be either a datatype - identifier, a predefined datatype (defined in - <code>H5Tpublic.h</code>), or a dataset identifier. - If <code>type_id</code> is a dataset identifier instead of a - datatype identifier, then this function returns a transient, - modifiable datatype which is a copy of the dataset's datatype. - <p> - The datatype identifier returned should be released with - <code>H5Tclose</code> or resource leaks will occur. -<!-- - <p> - Native datatypes supported by the library are: - <ul> <dl> - <dt>H5T_NATIVE_CHAR - <dd> Native character type, declare dataset array as 'char' - <dt>H5T_NATIVE_UCHAR - <dd> Native unsigned character type, declare dataset array as 'unsigned char' - <dt>H5T_NATIVE_SHORT - <dd> Native short type, declare dataset array as 'short' - <dt>H5T_NATIVE_USHORT - <dd> Native unsigned short type, declare dataset array as 'unsigned short' - <dt>H5T_NATIVE_INT - <dd> Native int type, declare dataset array as 'int' - <dt>H5T_NATIVE_UINT - <dd> Native unsigned int type, declare dataset array as 'unsigned int' - <dt>H5T_NATIVE_LONG - <dd> Native long type, declare dataset array as 'unsigned long' - <dt>H5T_NATIVE_ULONG - <dd> Native unsigned long type, declare dataset array as 'unsigned long' - <dt>H5T_NATIVE_LLONG - <dd> Native long long type, declare dataset array as 'unsigned long long' - <dt>H5T_NATIVE_ULLONG - <dd> Native unsigned long long type, declare dataset array as 'unsigned long long' - <dt>H5T_NATIVE_INT8 - <dd> Native signed 8-bit type, declare dataset array as 'int8' - <dt>H5T_NATIVE_UINT8 - <dd> Native unsigned 8-bit type, declare dataset array as 'uint8' - <dt>H5T_NATIVE_INT16 - <dd> Native signed 16-bit type, declare dataset array as 'int16' - <dt>H5T_NATIVE_UINT16 - <dd> Native unsigned 16-bit type, declare dataset array as 'uint16' - <dt>H5T_NATIVE_INT32 - <dd> Native signed 32-bit type, declare dataset array as 'int32' - <dt>H5T_NATIVE_UINT32 - <dd> Native unsigned 32-bit type, declare dataset array as 'uint32' - <dt>H5T_NATIVE_INT64 - <dd> Native signed 64-bit type, declare dataset array as 'uint64' - <dt>H5T_NATIVE_UINT64 - <dd> Native unsigned 64-bit type, declare dataset array as 'uint64' - <dt>H5T_NATIVE_FLOAT - <dd> Native single-precision float type, declare dataset array as 'float' - <dt>H5T_NATIVE_DOUBLE - <dd> Native double-precision float type, declare dataset array as 'double' - <dt>H5T_NATIVE_HSIZE - <dd> Native size_t type, declare dataset array as 'hsize_t' - <dt>H5T_NATIVE_HSSIZE - <dd> Native signed size_t type, declare dataset array as 'hssize_t' - <dt>H5T_NATIVE_HERR - <dd> Native error type, declare dataset array as 'herr_t' - <dt>H5T_NATIVE_HBOOL - <dd> Native boolean type, declare dataset array as 'hbool_t' - </dl> </ul> ---> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to copy. Can be a datatype - identifier, a predefined datatype (defined in - <code>H5Tpublic.h</code>), or a dataset identifier. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a datatype identifier if successful; - otherwise FAIL (-1) -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Equal">H5Tequal</a> -<dt><strong>Signature:</strong> - <dd><em>hbool_t </em><code>H5Tequal</code>(<em>hid_t </em><code>type_id1</code>, - <em>hid_t</em><code>type_id2</code> - ) -<dt><strong>Purpose:</strong> - <dd>Determines whether two datatype identifiers refer to the same datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tequal</code> determines whether two datatype identifiers - refer to the same datatype. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id1</code> - <dd>Identifier of datatype to compare. - <dt><em>hid_t</em> <code>type_id2</code> - <dd>Identifier of datatype to compare. - </dl> -<dt><strong>Returns:</strong> - <dd>When successful, returns TRUE if the datatype identifiers - refer to the same datatype, else FALSE. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Lock">H5Tlock</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tlock</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Locks a datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tlock</code> locks the datatype specified by the - <code>type_id</code> identifier, making it read-only and - non-destrucible. This is normally done by the library for - predefined datatypes so the application does not - inadvertently change or delete a predefined type. - Once a datatype is locked it can never be unlocked. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to lock. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetClass">H5Tget_class</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_class_t </em><code>H5Tget_class</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the datatype class identifier. -<dt><strong>Description:</strong> - <dd><code>H5Tget_class</code> returns the datatype class identifier. - <p> - Valid class identifiers, as defined in <code>H5Tpublic.h</code>, are: - <ul><li><code>H5T_INTEGER</code> (<code>0</code>) - <li><code>H5T_FLOAT</code> (<code>1</code>) - <li><code>H5T_TIME</code> (<code>2</code>) - <li><code>H5T_STRING</code> (<code>3</code>) - <li><code>H5T_BITFIELD</code> (<code>4</code>) - <li><code>H5T_OPAQUE</code> (<code>5</code>) - <li><code>H5T_COMPOUND</code> (<code>6</code>) - </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns datatype class identifier if successful; - otherwise H5T_NO_CLASS (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetSize">H5Tget_size</a> -<dt><strong>Signature:</strong> - <dd><em>size_t </em><code>H5Tget_size</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the size of a datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_size</code> returns the size of a datatype in bytes. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the size of the datatype in bytes if successful; - otherwise 0. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetSize">H5Tset_size</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_size</code>(<em>hid_t </em><code>type_id</code>, - <em>size_t</em><code>size</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the total size for an atomic datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tset_size</code> sets the total size in bytes, - <code>size</code>, for an atomic datatype (this operation - is not permitted on compound datatypes). If the size is - decreased so that the significant bits of the datatype extend beyond - the edge of the new size, then the `offset' property is decreased - toward zero. If the `offset' becomes zero and the significant - bits of the datatype still hang over the edge of the new size, then - the number of significant bits is decreased. - Adjusting the size of an H5T_STRING automatically sets the precision - to 8*size. All datatypes have a positive size. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to change size. - <dt><em>size_t</em> <code>size</code> - <dd>Size in bytes to modify datatype. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetOrder">H5Tget_order</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_order_t </em><code>H5Tget_order</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the byte order of an atomic datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_order</code> returns the byte order of an - atomic datatype. - <p> - Possible return values are: - <ul><dl> - <dt><code>H5T_ORDER_LE</code> (<code>0</code>) - <dd>Little endian byte ordering (default). - <dt><code>H5T_ORDER_BE</code> (<code>1</code>) - <dd>Big endian byte ordering. - <dt><code>H5T_ORDER_VAX</code> (<code>2</code>) - <dd>VAX mixed byte ordering (not currently supported). - </dl></ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a byte order constant if successful; - otherwise <code>H5T_ORDER_ERROR</code> (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetOrder">H5Tset_order</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_order</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_order_t</em><code>order</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the byte ordering of an atomic datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tset_order</code> sets the byte ordering of an atomic datatype. - Byte orderings currently supported are: - <ul> <dl> - <dt>H5T_ORDER_LE (<code>0</code>) - <dd> Little-endian byte ordering (default). - <dt>H5T_ORDER_BE (<code>1</code>) - <dd> Big-endian byte ordering. - <dt>H5T_ORDER_VAX (<code>2</code>) - <dd>VAX mixed byte ordering (not currently supported). - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>H5T_order_t</em> <code>order</code> - <dd>Byte ordering constant. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetPrecision">H5Tget_precision</a> -<dt><strong>Signature:</strong> - <dd><em>size_t </em><code>H5Tget_precision</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the precision of an atomic datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_precision</code> returns the precision of an atomic datatype. The - precision is the number of significant bits which, unless padding is - present, is 8 times larger than the value returned by H5Tget_size(). -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the number of significant bits if successful; - otherwise 0. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetPrecision">H5Tset_precision</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_precision</code>(<em>hid_t </em><code>type_id</code>, - <em>size_t</em><code>precision</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the precision of an atomic datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tset_precision</code> sets the precision of an atomic datatype. - The precision is the number of significant bits which, unless padding - is present, is 8 times larger than the value returned by H5Tget_size(). - <P>If the precision is increased then the offset is decreased and then - the size is increased to insure that significant bits do not "hang - over" the edge of the datatype. - <P>Changing the precision of an H5T_STRING automatically changes the - size as well. The precision must be a multiple of 8. - <P>When decreasing the precision of a floating point type, set the - locations and sizes of the sign, mantissa, and exponent fields - first. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>size_t</em> <code>precision</code> - <dd>Number of bits of precision for datatype. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetOffset">H5Tget_offset</a> -<dt><strong>Signature:</strong> - <dd><em>size_t </em><code>H5Tget_offset</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the bit offset of the first significant bit. -<dt><strong>Description:</strong> - <dd><code>H5Tget_offset</code> retrieves the bit offset of the first significant bit. - The signficant bits of an atomic datum can be offset from the beginning - of the memory for that datum by an amount of padding. The `offset' - property specifies the number of bits of padding that appear to the - "right of" the value. That is, if we have a 32-bit datum with 16-bits - of precision having the value 0x1122 then it will be layed out in - memory as (from small byte address toward larger byte addresses): - <br> - <br> - - <table border align=center cellpadding=4 width="80%"> - <tr align=center> - <th width="20%">Byte Position</th> - <th width="20%">Big-Endian Offset=0</th> - <th width="20%">Big-Endian Offset=16</th> - <th width="20%">Little-Endian Offset=0</th> - <th width="20%">Little-Endian Offset=16</th> - </tr> - <tr align=center> - <td>0:</td> - <td>[ pad]</td> - <td>[0x11]</td> - <td>[0x22]</td> - <td>[ pad]</td> - </tr> - <tr align=center> - <td>1:</td> - <td>[ pad]</td> - <td>[0x22]</td> - <td>[0x11]</td> - <td>[ pad]</td> - </tr> - <tr align=center> - <td>2:</td> - <td>[0x11]</td> - <td>[ pad]</td> - <td>[ pad]</td> - <td>[0x22]</td> - </tr> - <tr align=center> - <td>3:</td> - <td>[0x22]</td> - <td>[ pad]</td> - <td>[ pad]</td> - <td>[0x11]</td> - </tr> - </table> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a positive offset value if successful; - otherwise 0. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetOffset">H5Tset_offset</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_offset</code>(<em>hid_t </em><code>type_id</code>, - <em>size_t</em> <code>offset</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the bit offset of the first significant bit. -<dt><strong>Description:</strong> - <dd><code>H5Tset_offset</code> sets the bit offset of the first significant bit. The - signficant bits of an atomic datum can be offset from the beginning of - the memory for that datum by an amount of padding. The `offset' - property specifies the number of bits of padding that appear to the - "right of" the value. That is, if we have a 32-bit datum with 16-bits - of precision having the value 0x1122 then it will be layed out in - memory as (from small byte address toward larger byte addresses): - <br> - <br> - - <table border align=center cellpadding=4 width="80%"> - <tr align=center> - <th width="20%">Byte Position</th> - <th width="20%">Big-Endian Offset=0</th> - <th width="20%">Big-Endian Offset=16</th> - <th width="20%">Little-Endian Offset=0</th> - <th width="20%">Little-Endian Offset=16</th> - </tr> - <tr align=center> - <td>0:</td> - <td>[ pad]</td> - <td>[0x11]</td> - <td>[0x22]</td> - <td>[ pad]</td> - </tr> - <tr align=center> - <td>1:</td> - <td>[ pad]</td> - <td>[0x22]</td> - <td>[0x11]</td> - <td>[ pad]</td> - </tr> - <tr align=center> - <td>2:</td> - <td>[0x11]</td> - <td>[ pad]</td> - <td>[ pad]</td> - <td>[0x22]</td> - </tr> - <tr align=center> - <td>3:</td> - <td>[0x22]</td> - <td>[ pad]</td> - <td>[ pad]</td> - <td>[0x11]</td> - </tr> - </table> - -<P>If the offset is incremented then the total size is -incremented also if necessary to prevent significant bits of -the value from hanging over the edge of the datatype. - -<P>The offset of an H5T_STRING cannot be set to anything but -zero. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>size_t</em> <code>offset</code> - <dd>Offset of first significant bit. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetPad">H5Tget_pad</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tget_pad</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_pad_t *</em> <code>lsb</code>, - <em>H5T_pad_t *</em> <code>msb</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the padding type of the least and most-significant bit padding. -<dt><strong>Description:</strong> - <dd><code>H5Tget_pad</code> retrieves the padding type of the least and most-significant - bit padding. Valid types are: - <ul> <dl> - <dt>H5T_PAD_ZERO (<code>0</code>) - <dd>Set background to zeros. - <dt>H5T_PAD_ONE (<code>1</code>) - <dd>Set background to ones. - <dt>H5T_PAD_BACKGROUND (<code>2</code>) - <dd>Leave background alone. - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>IN: Identifier of datatype to query. - <dt><em>H5T_pad_t *</em> <code>lsb</code> - <dd>OUT: Pointer to location to return least-significant - bit padding type. - <dt><em>H5T_pad_t *</em> <code>msb</code> - <dd>OUT: Pointer to location to return most-significant - bit padding type. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetPad">H5Tset_pad</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_pad</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_pad_t</em> <code>lsb</code>, - <em>H5T_pad_t</em> <code>msb</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the least and most-significant bits padding types. -<dt><strong>Description:</strong> - <dd><code>H5Tset_pad</code> sets the least and most-significant bits padding types. - <ul> <dl> - <dt>H5T_PAD_ZERO (<code>0</code>) - <dd>Set background to zeros. - <dt>H5T_PAD_ONE (<code>1</code>) - <dd>Set background to ones. - <dt>H5T_PAD_BACKGROUND (<code>2</code>) - <dd>Leave background alone. - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>H5T_pad_t</em> <code>lsb</code> - <dd>Padding type for least-significant bits. - <dt><em>H5T_pad_t</em> <code>msb</code> - <dd>Padding type for most-significant bits. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetSign">H5Tget_sign</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_sign_t </em><code>H5Tget_sign</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the sign type for an integer type. -<dt><strong>Description:</strong> - <dd><code>H5Tget_sign</code> retrieves the sign type for an integer type. - Valid types are: - <ul> <dl> - <dt>H5T_SGN_NONE (<code>0</code>) - <dd>Unsigned integer type. - <dt>H5T_SGN_2 (<code>1</code>) - <dd>Two's complement signed integer type. - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a valid sign type if successful; - otherwise <code>H5T_SGN_ERROR</code> (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetSign">H5Tset_sign</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_sign</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_sign_t</em> <code>sign</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the sign proprety for an integer type. -<dt><strong>Description:</strong> - <dd><code>H5Tset_sign</code> sets the sign proprety for an integer type. - <ul> <dl> - <dt>H5T_SGN_NONE (<code>0</code>) - <dd>Unsigned integer type. - <dt>H5T_SGN_2 (<code>1</code>) - <dd>Two's complement signed integer type. - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>H5T_sign_t</em> <code>sign</code> - <dd>Sign type. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetFields">H5Tget_fields</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tget_fields</code>(<em>hid_t </em><code>type_id</code>, - <em>size_t *</em> <code>epos</code>, - <em>size_t *</em> <code>esize</code>, - <em>size_t *</em> <code>mpos</code>, - <em>size_t *</em> <code>msize</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves floating point datatype bit field information. -<dt><strong>Description:</strong> - <dd><code>H5Tget_fields</code> retrieves information about the locations of the various - bit fields of a floating point datatype. The field positions are bit - positions in the significant region of the datatype. Bits are - numbered with the least significant bit number zero. - Any (or even all) of the arguments can be null pointers. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>IN: Identifier of datatype to query. - <dt><em>size_t *</em> <code>epos</code> - <dd>OUT: Pointer to location to return exponent bit-position. - <dt><em>size_t *</em> <code>esize</code> - <dd>OUT: Pointer to location to return size of exponent in bits. - <dt><em>size_t *</em> <code>mpos</code> - <dd>OUT: Pointer to location to return mantissa bit-position. - <dt><em>size_t *</em> <code>msize</code> - <dd>OUT: Pointer to location to return size of mantissa in bits. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetFields">H5Tset_fields</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_fields</code>(<em>hid_t </em><code>type_id</code>, - <em>size_t</em> <code>epos</code>, - <em>size_t</em> <code>esize</code>, - <em>size_t</em> <code>mpos</code>, - <em>size_t</em> <code>msize</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets locations and sizes of floating point bit fields. -<dt><strong>Description:</strong> - <dd><code>H5Tset_fields</code> sets the locations and sizes of the various floating - point bit fields. The field positions are bit positions in the - significant region of the datatype. Bits are numbered with the least - significant bit number zero. - - <P>Fields are not allowed to extend beyond the number of bits of - precision, nor are they allowed to overlap with one another. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>size_t</em> <code>epos</code> - <dd>Exponent bit position. - <dt><em>size_t</em> <code>esize</code> - <dd>Size of exponent in bits. - <dt><em>size_t</em> <code>mpos</code> - <dd>Mantissa bit position. - <dt><em>size_t</em> <code>msize</code> - <dd>Size of mantissa in bits. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetEbias">H5Tget_ebias</a> -<dt><strong>Signature:</strong> - <dd><em>size_t </em><code>H5Tget_ebias</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the exponent bias of a floating-point type. -<dt><strong>Description:</strong> - <dd><code>H5Tget_ebias</code> retrieves the exponent bias of a floating-point type. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the bias if successful; - otherwise 0. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetEbias">H5Tset_ebias</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_ebias</code>(<em>hid_t </em><code>type_id</code>, - <em>size_t</em> <code>ebias</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the exponent bias of a floating-point type. -<dt><strong>Description:</strong> - <dd><code>H5Tset_ebias</code> sets the exponent bias of a floating-point type. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>size_t</em> <code>ebias</code> - <dd>Exponent bias value. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetNorm">H5Tget_norm</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_norm_t </em><code>H5Tget_norm</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves mantissa normalization of a floating-point datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_norm</code> retrieves the mantissa normalization of - a floating-point datatype. Valid normalization types are: - <ul> <dl> - <dt>H5T_NORM_IMPLIED (<code>0</code>) - <dd>MSB of mantissa is not stored, always 1 - <dt>H5T_NORM_MSBSET (<code>1</code>) - <dd>MSB of mantissa is always 1 - <dt>H5T_NORM_NONE (<code>2</code>) - <dd>Mantissa is not normalized - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a valid normalization type if successful; - otherwise <code>H5T_NORM_ERROR</code> (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetNorm">H5Tset_norm</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_norm</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_norm_t</em> <code>norm</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets the mantissa normalization of a floating-point datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tset_norm</code> sets the mantissa normalization of - a floating-point datatype. Valid normalization types are: - <ul> <dl> - <dt>H5T_NORM_IMPLIED (<code>0</code>) - <dd>MSB of mantissa is not stored, always 1 - <dt>H5T_NORM_MSBSET (<code>1</code>) - <dd>MSB of mantissa is always 1 - <dt>H5T_NORM_NONE (<code>2</code>) - <dd>Mantissa is not normalized - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to set. - <dt><em>H5T_norm_t</em> <code>norm</code> - <dd>Mantissa normalization type. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetInpad">H5Tget_inpad</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_pad_t </em><code>H5Tget_inpad</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the internal padding type for unused bits in floating-point datatypes. -<dt><strong>Description:</strong> - <dd><code>H5Tget_inpad</code> retrieves the internal padding type for - unused bits in floating-point datatypes. - Valid padding types are: - <ul> <dl> - <dt>H5T_PAD_ZERO (<code>0</code>) - <dd>Set background to zeros. - <dt>H5T_PAD_ONE (<code>1</code>) - <dd>Set background to ones. - <dt>H5T_PAD_BACKGROUND (<code>2</code>) - <dd>Leave background alone. - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a valid padding type if successful; - otherwise <code>H5T_PAD_ERROR</code> (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetInpad">H5Tset_inpad</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_inpad</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_pad_t</em> <code>inpad</code> - ) -<dt><strong>Purpose:</strong> - <dd>Fills unused internal floating point bits. -<dt><strong>Description:</strong> - <dd>If any internal bits of a floating point type are unused - (that is, those significant bits which are not part of the - sign, exponent, or mantissa), then <code>H5Tset_inpad</code> will be filled - according to the value of the padding value property <code>inpad</code>. - Valid padding types are: - <ul> <dl> - <dt>H5T_PAD_ZERO (<code>0</code>) - <dd>Set background to zeros. - <dt>H5T_PAD_ONE (<code>1</code>) - <dd>Set background to ones. - <dt>H5T_PAD_BACKGROUND (<code>2</code>) - <dd>Leave background alone. - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to modify. - <dt><em>H5T_pad_t</em> <code>pad</code> - <dd>Padding type. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetCset">H5Tget_cset</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_cset_t </em><code>H5Tget_cset</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the character set type of a string datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_cset</code> retrieves the character set type - of a string datatype. Valid character set types are: - <ul> <dl> - <dt>H5T_CSET_ASCII (<code>0</code>) - <dd>Character set is US ASCII - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a valid character set type if successful; - otherwise <code>H5T_CSET_ERROR</code> (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetCset">H5Tset_cset</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_cset</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_cset_t</em> <code>cset</code> - ) -<dt><strong>Purpose:</strong> - <dd>Sets character set to be used. -<dt><strong>Description:</strong> - <dd><code>H5Tset_cset</code> the character set to be used. - <p> - HDF5 is able to distinguish between character sets of different - nationalities and to convert between them to the extent possible. - Valid character set types are: - <ul> <dl> - <dt>H5T_CSET_ASCII (<code>0</code>) - <dd>Character set is US ASCII. - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to modify. - <dt><em>H5T_cset_t</em> <code>cset</code> - <dd>Character set type. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetStrpad">H5Tget_strpad</a> -<dt><strong>Signature:</strong> - <dd><em>H5T_str_t </em><code>H5Tget_strpad</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the string padding method for a string datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_strpad</code> retrieves the string padding method - for a string datatype. Valid string padding types are: - <ul> <dl> - <dt>H5T_STR_NULL (<code>0</code>) - <dd>Pad with zeros (as C does) - <dt>H5T_STR_SPACE (<code>1</code>) - <dd>Pad with spaces (as FORTRAN does) - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a valid string padding type if successful; - otherwise <code>H5T_STR_ERROR</code> (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-SetStrpad">H5Tset_strpad</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tset_strpad</code>(<em>hid_t </em><code>type_id</code>, - <em>H5T_str_t</em> <code>strpad</code> - ) -<dt><strong>Purpose:</strong> - <dd>Defines the storage mechanism for character strings. -<dt><strong>Description:</strong> - <dd>The method used to store character strings differs with the - programming language: C usually null terminates strings while - Fortran left-justifies and space-pads strings. - <code>H5Tset_strpad</code> defines the storage mechanism for the string. - Valid string padding values are: - <ul> <dl> - <dt>H5T_STR_NULL (<code>0</code>) - <dd>Pad with zeros (as C does) - <dt>H5T_STR_SPACE (<code>1</code>) - <dd>Pad with spaces (as FORTRAN does) - </dl> </ul> -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to modify. - <dt><em>H5T_str_t</em> <code>strpad</code> - <dd>String padding type. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetNmembers">H5Tget_nmembers</a> -<dt><strong>Signature:</strong> - <dd><em>intn </em><code>H5Tget_nmembers</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the number of fields in a compound datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_nmembers</code> retrieves the number of fields a compound datatype has. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns number of members datatype has if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetMemberName">H5Tget_member_name</a> -<dt><strong>Signature:</strong> - <dd><em>char *</em> <code>H5Tget_member_name</code>(<em>hid_t </em><code>type_id</code>, - <em>int</em> <code>field_idx</code> - ) -<dt><strong>Purpose:</strong> - <dd>Retrieves the name of a field of a compound datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tget_member_name</code> retrieves the name of a field - of a compound datatype. Fields are stored in no particular - order, with indexes 0 through N-1, where N is the value returned - by <code>H5Tget_nmembers()</code>. The name of the field is - allocated with <code>malloc()</code> and the caller is responsible - for freeing the memory used by the name. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - <dt><em>int</em> <code>field_idx</code> - <dd>Field index (0-based) of the field name to retrieve. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns a valid pointer if successful; - otherwise NULL. -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetMemberDims">H5Tget_member_dims</a> -<dt><strong>Signature:</strong> - <dd><em>int</em> <code>H5Tget_member_dims</code>(<em>hid_t </em><code>type_id</code>, - <em>int</em> <code>field_idx</code>, - <em>size_t *</em><code>dims</code>, - <em>int *</em><code>perm</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the dimensionality of the field. -<dt><strong>Description:</strong> - <dd><code>H5Tget_member_dims</code> returns the dimensionality of - the field. The dimensions and permuation vector are returned - through arguments <code>dims</code> and <code>perm</code>, - both arrays of at least four elements. - Either (or even both) may be null pointers. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - <dt><em>int</em> <code>field_idx</code> - <dd>Field index (0-based) of the field <code>dims</code> - to retrieve. - <dt><em>size_t *</em> <code>dims</code> - <dd>Pointer to buffer to store the dimensions of the field. - <dt><em>int *</em> <code>perm</code> - <dd>Pointer to buffer to store the permutation vector of - the field. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the number of dimensions, a number from 0 to 4, - if successful. - Otherwise returns FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-GetMemberType">H5Tget_member_type</a> -<dt><strong>Signature:</strong> - <dd><em>hid_t</em> <code>H5Tget_member_type</code>(<em>hid_t </em><code>type_id</code>, - <em>int</em> <code>field_idx</code> - ) -<dt><strong>Purpose:</strong> - <dd>Returns the datatype of the specified member. -<dt><strong>Description:</strong> - <dd><code>H5Tget_member_type</code> returns the datatype of the specified member. The caller - should invoke H5Tclose() to release resources associated with the type. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to query. - <dt><em>int</em> <code>field_idx</code> - <dd>Field index (0-based) of the field type to retrieve. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns the identifier of a copy of the datatype of the field - if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Insert">H5Tinsert</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Tinsert</code>(<em>hid_t </em><code>type_id</code>, - <em>const char *</em> <code>name</code>, - <em>off_t</em> <code>offset</code>, - <em>hid_t</em> <code>field_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Adds a new member to a compound datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tinsert</code> adds another member to the compound datatype - <code>type_id</code>. The new member has a <code>name</code> which - must be unique within the compound datatype. - The <code>offset</code> argument defines the start of the member - in an instance of the compound datatype, and <code>field_id</code> - is the datatype identifier of the new member. - <P> - Note: All members of a compound datatype must be atomic; a - compound datatype cannot have a member which is a compound - datatype. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of compound datatype to modify. - <dt><em>const char *</em> <code>name</code> - <dd>Name of the field to insert. - <dt><em>off_t</em> <code>offset</code> - <dd>Offset in memory structure of the field to insert. - <dt><em>hid_t</em> <code>field_id</code> - <dd>Datatype identifier of the field to insert. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Pack">H5Tpack</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Tpack</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Recursively removes padding from within a compound datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tpack</code> recursively removes padding from within a compound - datatype to make it more efficient (space-wise) to store that data. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to modify. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-RegisterHard">H5Tregister_hard</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Tregister_hard</code>(<em>const char - *</em> <code>name</code>, <em>hid_t </em><code>src_id</code>, - <em>hid_t</em> <code>dst_id</code>, - <em>H5T_conv_t</em> <code>func</code> - ) -<dt><strong>Purpose:</strong> - <dd>Registers a hard conversion function. -<dt><strong>Description:</strong> - <dd><code>H5Tregister_hard</code> registers a hard conversion function for a datatype - conversion path. The path is specified by the source and destination - datatypes <code>src_id</code> and <code>dst_id</code>. A conversion - path can only have one hard function, so <code>func</code> replaces any - previous hard function. - <p> - If <code>func</code> is the null pointer then any hard function - registered for this path is removed from this path. The soft functions - are then used when determining which conversion function is appropriate - for this path. The <code>name</code> argument is used only - for debugging and should be a short identifier for the function. - <p> - The type of the conversion function pointer is declared as: - <br> - <code>typedef</code> <em>herr_t </em>(<code>*H5T_conv_t</code>) (<em>hid_t </em><code>src_id</code>, - <em>hid_t </em><code>dst_id</code>, - <em>H5T_cdata_t *</em><code>cdata</code>, - <em>size_t </em><code>nelmts</code>, - <em>void *</em><code>buf</code>, - <em>void *</em><code>bkg)</code>; -<dt><strong>Parameters:</strong> - <dl> - <dt><em>const char *</em> <code>name</code> - <dd>Name displayed in diagnostic output. - <dt><em>hid_t</em> <code>src_id</code> - <dd>Identifier of source datatype. - <dt><em>hid_t</em> <code>dst_id</code> - <dd>Identifier of destination datatype. - <dt><em>H5T_conv_t</em> <code>func</code> - <dd>Function to convert between source and destination datatypes. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-RegisterSoft">H5Tregister_soft</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Tregister_soft</code>(<em>const char - *</em> <code>name</code>, <em>H5T_class_t </em><code>src_cls</code>, - <em>H5T_class_t</em> <code>dst_cls</code>, - <em>H5T_conv_t</em> <code>func</code> - ) -<dt><strong>Purpose:</strong> - <dd>Registers a soft conversion function. -<dt><strong>Description:</strong> - <dd><code>H5Tregister_soft</code> registers a soft conversion function by adding it to the - end of the master soft list and replacing the soft function in all - applicable existing conversion paths. The <code>name</code> - is used only for debugging and should be a short identifier - for the function. - <P> - The type of the conversion function pointer is declared as: - <br> - <code>typedef</code> <em>herr_t </em>(<code>*H5T_conv_t</code>) (<em>hid_t </em><code>src_id</code>, - <em>hid_t </em><code>dst_id</code>, - <em>H5T_cdata_t *</em><code>cdata</code>, - <em>size_t </em><code>nelmts</code>, - <em>void *</em><code>buf</code>, - <em>void *</em><code>bkg)</code>; -<dt><strong>Parameters:</strong> - <dl> - <dt><em>const char *</em> <code>name</code> - <dd>Name displayed in diagnostic output. - <dt><em>H5T_class_t</em> <code>src_cls</code> - <dd>Identifier of source datatype class. - <dt><em>H5T_class_t</em> <code>dst_cls</code> - <dd>Identifier of destination datatype class. - <dt><em>H5T_conv_t</em> <code>func</code> - <dd>Function to convert between source and destination datatypes. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Unregister">H5Tunregister</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Tunregister</code>(<em>H5T_conv_t</em> <code>func</code> - ) -<dt><strong>Purpose:</strong> - <dd>Removes a conversion function from all conversion paths. -<dt><strong>Description:</strong> - <dd><code>H5Tunregister</code> removes a conversion function from all conversion paths. - <P> - The type of the conversion function pointer is declared as: - <br> - <code>typedef</code> <em>herr_t </em>(<code>*H5T_conv_t</code>) (<em>hid_t </em><code>src_id</code>, - <em>hid_t </em><code>dst_id</code>, - <em>H5T_cdata_t *</em><code>cdata</code>, - <em>size_t </em><code>nelmts</code>, - <em>void *</em><code>buf</code>, - <em>void *</em><code>bkg)</code>; -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5T_conv_t</em> <code>func</code> - <dd>Function to remove from conversion paths. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Datatype-Close">H5Tclose</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t </em><code>H5Tclose</code>(<em>hid_t </em><code>type_id</code> - ) -<dt><strong>Purpose:</strong> - <dd>Releases a datatype. -<dt><strong>Description:</strong> - <dd><code>H5Tclose</code> releases a datatype. Further access - through the datatype identifier is illegal. Failure to release - a datatype with this call will result in resource leaks. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>hid_t</em> <code>type_id</code> - <dd>Identifier of datatype to release. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -H5T -<a href="RM_H5Z.html">H5Z</a> -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 2 September 1998 - -</body> -</html> diff --git a/doc/src/RM_H5Z.html b/doc/src/RM_H5Z.html deleted file mode 100644 index 5cdc5c8..0000000 --- a/doc/src/RM_H5Z.html +++ /dev/null @@ -1,129 +0,0 @@ -<html> -<head><title> -HDF5/H5Z Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -H5Z -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>H5Z: Compression Interface</h1> -</center> - -<h2>Compression API Functions</h2> - -This function enable the user to configure a new compression -method for the local environment. - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Compression-Register">H5Zregister</a> -</ul> -</td><td> </td><td valign=top> -<ul> - -</ul> -</td></tr> -</table> - -<p> -HDF5 supports compression of raw data by compression methods -built into the library or defined by an application. -A compression method is associated with a dataset when the dataset is -created and is applied independently to each storage chunk of the dataset. -The dataset must use the <code>H5D_CHUNKED</code> storage layout. -<p> -The HDF5 library does not support compression for contiguous datasets -because of the difficulty of implementing random access for partial I/O. -Compact dataset compression is not supported because it would not produce -significant results. -<p> -See <a href="Compression.html"><cite>Compression</cite></a> in the -<cite>HDF5 User's Guide</cite> for further information. - -<hr> -<dl> -<dt><strong>Name:</strong> <a name="Compression-Register">H5Zregister</a> -<dt><strong>Signature:</strong> - <dd><em>herr_t</em> <code>H5Zregister</code>(<em>H5Z_method_t</em> <code>method</code>, - <em>const char *</em><code>name</code>, - <em>H5Z_func_t</em><code>cfunc</code>, - <em>H5Z_func_t</em> <code>ufunc</code> - ) -<dt><strong>Purpose:</strong> - <dd> Registers new compression and uncompression functions for a - method specified by a method number. -<dt><strong>Description:</strong> - <dd><code>H5Zregister</code> registers new compression and uncompression - functions for a method specified by a method number, <code>method</code>. - <code>name</code> is used for debugging and may be the null pointer. - Either or both of <code>cfunc</code> (the compression function) and - <code>ufunc</code> (the uncompression method) may be null pointers. - <p> - The statistics associated with a method number are not reset - by this function; they accumulate over the life of the library. -<dt><strong>Parameters:</strong> - <dl> - <dt><em>H5Z_method_t</em> <code>method</code> - <dd>Number specifying compression method. - <dt><em>const char *</em><code>name</code> - <dd>Name associated with the method number. - <dt><em>H5Z_func_t</em> <code>cfunc</code> - <dd>Compression method. - <dt><em>H5Z_func_t</em> <code>ufunc</code> - <dd>Uncompression method. - </dl> -<dt><strong>Returns:</strong> - <dd>Returns SUCCEED (0) if successful; - otherwise FAIL (-1). -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -H5Z -<a href="Tools.html">Tools</a> -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 14 July 1998 - -</body> -</html> diff --git a/doc/src/Tools.html b/doc/src/Tools.html deleted file mode 100644 index f5c1578..0000000 --- a/doc/src/Tools.html +++ /dev/null @@ -1,265 +0,0 @@ -<html> -<head><title> -HDF5/Tools Draft API Specification -</title></head> - -<body> - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<!-- -<a href="RM_H5R.html">H5R</a> ---> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -Tools -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<center> -<h1>HDF5 Tools</h1> -</center> - -<h2>HDF5 Tool Interfaces</h2> -<p> -These tools enable the user to examine HDF5 files interactively. - - -<table border=0> -<tr><td valign=top> -<ul> - <li><a href="#Tools-Dump">h5dump</a> -- A tool for displaying - HDF5 file contents - <li><a href="#Tools-Ls">h5ls</a> -- A tool for listing specified - features of HDF5 file contents - <li><a href="#Tools-Repart">h5repart</a> -- A tool for repartitioning - a file, creating a family of files -</ul> -</td></tr> -</table> - -<p> - - -<hr> -<dl> -<dt><strong>Tool Name:</strong> <a name="Tools-Dump">h5dump</a> -<dt><strong>Syntax:</strong> - <dd><code>h5dump - [-h] - [-bb] - [-header] - [-a </code><em>names</em><code>] - [-d </code><em>names</em><code>] - [-g </code><em>names</em><code>] - [-l </code><em>names</em><code>] </code> - <em>file</em> -<dt><strong>Purpose:</strong> - <dd>Displays HDF5 file contents. -<dt><strong>Description:</strong> - <dd><code>h5dump</code> enables the user to interactively examine - the contents of an HDF5 file and dump those contents, - in human readable form, to an ASCII file or to other tools. - <p> - <code>h5dump</code> displays HDF5 file content on - standard output. It may display the content of the - whole HDF5 file or selected objects, which can be groups, - datasets, links, or attributes. - <p> - The <code>-header</code> option displays object - header information only and must appear before the - <code>-a</code>, <code>-d</code>, <code>-g</code>, or - <code>-l</code> options. - <p> - Native data types created in one machine are displayed with native - names when <code>h5dump</code> runs in the same machine type. But when - <code>h5dump</code> runs in a different machine type, it displays the - native data types with standard type names. This will be changed in the - next release to always display with standard type names. - <p> - The <code>h5dump</code> output is described in detail in - <a href="../html/ddl.html">DDL</a>, the <cite>Data Description - Language</cite> document. -<dt><strong>Options and Parameters:</strong> - <dl> - <dt><code>-h</code> - <dd>Print information on this command. - <dt><code>-bb</code> - <dd>Displays the content of boot block. The default is - not to display. - <dt><code>-header</code> - <dd>Displays header information only; no data is displayed. - <dt><code>-a</code> <em>names</em> - <dd>Displays the specified attribute(s). - <dt><code>-d</code> <em>names</em> - <dd>Displays the specified dataset(s). - <dt><code>-g</code> <em>names</em> - <dd>Displays all the objects within the specified group(s). - <dt><code>-l</code> <em>names</em> - <dd>Displays the specified link value(s). - <dt><em>file</em> - <dd>The file to be examined. - </dl> -<dt><strong>Current Status:</strong> - <dd>The current version of <code>h5dump</code> can display the - following types of information: - <ul> - <li>Group name - <li>Attribute name, data type, data space, and data - <li>Dataset name, data type, data space, and data - <li>Soft link name, link value - </ul> - - <dd>Limitions in the current implementaion include the - following: - <ul> - <li>Only one file is displayed at a time (file families are - not supported). - <li>The whole file content is displayed (none of above - options are supported). - <li>Compound data types are not yet supported. - <li>Complex data spaces are not yet supported. - </ul> -<dt><strong>See Also:</strong> - <dd>HDF5 Data Description Language syntax - (<a href="../html/ddl.html">DDL</a>) -</dl> - - -<hr> -<dl> -<dt><strong>Tool Name:</strong> <a name="Tools-Ls">h5ls</a> -<dt><strong>Syntax:</strong> - <dd><code>h5ls - [</code><em>options</em><code>]</code><em> - file</em><code> - [</code><em>objects...</em><code>]</code> -<dt><strong>Purpose:</strong> - <dd>Prints information about a file or dataset. -<dt><strong>Description:</strong> - <dd><code>h5ls</code> prints selected information about file objects - in the specified format. -<dt><strong>Options and Parameters:</strong> - <dl> - <dt><code>-h</code> or <code>-?</code> or <code>--help</code> - <dd>Print a usage message and exit. - <dt><code>-d</code> or <code>--dump</code> - <dd>Print the values of datasets. - <dt><code>-w</code><em>N</em> or <code>--width=</code><em>N</em> - <dd>Set the number of columns of output. - <dt><code>-v</code> or <code>--verbose</code> - <dd>Generate more verbose output. - <dt><code>-V</code> or <code>--version</code> - <dd>Print version number and exit. - <dt><em>file</em> - <dd>The file name may include a printf(3C) integer format - such as <code>%%05d</code> to open a file family. - <dt><em>objects</em> - <dd>The names of zero or more objects about which information - should be displayed. If a group is mentioned then - information about each of its members is displayed. - If no object names are specified then information about - all of the objects in the root group is displayed. - </dl> -<!-- -<dt><strong>Current Status:</strong> - <dd> -<dt><strong>See Also:</strong> - <dd> ---> -</dl> - - -<hr> -<dl> -<dt><strong>Tool Name:</strong> <a name="Tools-Repart">h5repart</a> -<dt><strong>Syntax:</strong> - <dd><code>h5repart - [-v] - [-V] - [-[b|m]</code><em>N</em><code>[g|m|k]]</code> - <em>source_file - dest_file</em> -<dt><strong>Purpose:</strong> - <dd>Repartitions a file or family of files. -<dt><strong>Description:</strong> - <dd><code>h5repart</code> splits a single file into a family of - files, joins a family of files into a single file, or copies - one family of files to another while changing the size of the - family members. <code>h5repart</code> can also be used to - copy a single file to a single file with holes. - <p> - Sizes associated with the <code>-b</code> and <code>-m</code> - options may be suffixed with <code>g</code> for gigabytes, - <code>m</code> for megabytes, or <code>k</code> for kilobytes. - <p> - File family names include an integer <code>printf</code> - format such as <code>%d</code>. - -<dt><strong>Options and Parameters:</strong> - <dl> - <dt><code>-v</code> - <dd>Produce verbose output. - <dt><code>-V</code> - <dd>Print a version number and exit. - <dt><code>-b</code><em>N</em> - <dd>The I/O block size, defaults to 1kB - <dt><code>-m</code><em>N</em> - <dd>The destination member size or 1GB - <dt><em>source_file</em> - <dd>The name of the source file - <dt><em>dest_file</em> - <dd>The name of the destination files - </dl> -<!-- -<dt><strong>Current Status:</strong> - <dd> -<dt><strong>See Also:</strong> - <dd> ---> -</dl> - - -<hr> -<center> -<a href="RM_H5Front.html">HDF5 Reference Manual</a> -<a href="RM_H5.html">H5</a> -<a href="RM_H5A.html">H5A</a> -<a href="RM_H5D.html">H5D</a> -<a href="RM_H5E.html">H5E</a> -<a href="RM_H5F.html">H5F</a> -<a href="RM_H5G.html">H5G</a> -<a href="RM_H5P.html">H5P</a> -<!-- -<a href="RM_H5R.html">H5R</a> ---> -<a href="RM_H5S.html">H5S</a> -<a href="RM_H5T.html">H5T</a> -<a href="RM_H5Z.html">H5Z</a> -Tools -<!-- -<a href="Glossary.html">Glossary</a> ---> -</center> -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> - -<br> -Last modified: 9 September 1998 - -</body> -</html> |