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author | Frank Baker <fbaker@hdfgroup.org> | 2001-01-09 21:55:07 (GMT) |
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committer | Frank Baker <fbaker@hdfgroup.org> | 2001-01-09 21:55:07 (GMT) |
commit | c6b677dde68d4896c2011249e0d1eca3e3e622b2 (patch) | |
tree | 754c6320cac2e670bddca5fd1b9df1f9528552a3 /doc/html | |
parent | 35bc545296209684a5c46db0cde11beb9403a4dc (diff) | |
download | hdf5-c6b677dde68d4896c2011249e0d1eca3e3e622b2.zip hdf5-c6b677dde68d4896c2011249e0d1eca3e3e622b2.tar.gz hdf5-c6b677dde68d4896c2011249e0d1eca3e3e622b2.tar.bz2 |
[svn-r3253]
Purpose:
Clarifications in H5Pset_fapl_core.
Platforms tested:
IE 5
Diffstat (limited to 'doc/html')
-rw-r--r-- | doc/html/RM_H5P.html | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/doc/html/RM_H5P.html b/doc/html/RM_H5P.html index 4e38ad3..7ee0333 100644 --- a/doc/html/RM_H5P.html +++ b/doc/html/RM_H5P.html @@ -3757,7 +3757,6 @@ facilitate moving easily between them.</i> <a href="http://www.npaci.edu/Research/DI/srb/">http//www.npaci.edu/Research/DI/srb/</a>. <dt><strong>Parameters:</strong> <dl> - <dl> <dt><em>hid_t</em> <code>fapl_id</code> <dd>IN: File access property list identifier. <dt><em>SRB_Info *</em><code>info</code> @@ -3794,12 +3793,22 @@ facilitate moving easily between them.</i> <dd><code>H5Pset_fapl_core</code> modifies the file access property list to use the <code>H5FD_CORE</code> driver. <p> - <code>increment</code> specifies the increment by which allocated memory - is to be increased each time more memory is required. + The <code>H5FD_CORE</code> driver enables an application to work + with a file in memory, speeding reads and writes as no disk access + is made. File contents are stored only in memory until the file + is closed. The <code>backing_store</code> parameter determines + whether file contents are ever written to disk. + <p> + <code>increment</code> specifies the increment by which allocated + memory is to be increased each time more memory is required. <p> If <code>backing_store</code> is set to <code>1</code> (<code>TRUE</code>), the file contents are flushed to a file - with the same name as this core file. + with the same name as this core file when the file is closed + or access to the file is terminated in memory. + <dt><strong>Note:</strong> + <dd>There is currently no means for reading a file from disk then + using the <code>H5FD_CORE</code> driver to manipulate the file. <dt><strong>Parameters:</strong> <dl> <dt><em>hid_t</em> <code>fapl_id</code> @@ -3807,7 +3816,8 @@ facilitate moving easily between them.</i> <dt><em>size_t</em> <code>increment</code> <dd>IN: Size, in bytes, of memory increments. <dt><em>hbool_t</em> <code>backing_store</code> - <dd>IN: Boolean flag indicating whether to create file. + <dd>IN: Boolean flag indicating whether to write the file + contents to disk when the file is closed. </dl> <dt><strong>Returns:</strong> <dd>Returns a non-negative value if successful. @@ -3838,7 +3848,6 @@ facilitate moving easily between them.</i> <dt><strong>Description:</strong> <dd><code>H5Pget_fapl_core</code> queries the <code>H5FD_CORE</code> driver properties as set by <code>H5Pset_fapl_core</code>. - <dt><strong>Parameters:</strong> <dl> <dt><em>hid_t</em> <code>fapl_id</code> @@ -3846,7 +3855,8 @@ facilitate moving easily between them.</i> <dt><em>size_t</em> *<code>increment</code> <dd>OUT: Size, in bytes, of memory increments. <dt><em>hbool_t</em> *<code>backing_store</code> - <dd>OUT: Boolean flag indicating whether to create file. + <dd>OUT: Boolean flag indicating whether to write the file + contents to disk when the file is closed. </dl> <dt><strong>Returns:</strong> <dd>Returns a non-negative value if successful. |