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@@ -44,8 +44,8 @@ number of entries in symbol tables (used to store groups) and additional version
manner, called a complex dataspace.
<P>
-<DT><B>DATA TYPE</B>
-<DD>An HDF5 Data Type is an object that describes the type of the
+<DT><B>DATATYPE</B>
+<DD>An HDF5 Datatype is an object that describes the type of the
element in an HDF5 multi-dimensional array. There are two
categories of datatypes: atomic and compound data types. An
atomic type is a type which cannot be decomposed into smaller
@@ -181,6 +181,13 @@ A hyperslab is a portion of a dataset. A hyperslab selection can be a
logically contiguous collection of points in a dataspace, or it
can be a regular pattern of points or blocks in a dataspace.
<P>
+<DT><B>MOUNTING FILES</B>
+<DD>
+HDF5 allows you to combine two or more HDF5 files in a manner similar
+to mounting files in UNIX. The group structure and metadata
+from one file appear as though they exist in another file.
+<P>
+
<DT><B>NAMES</B>
<DD>HDF5 object names are a slash-separated list of components. A name
which begins with a slash is an absolute name which is accessed
@@ -192,6 +199,28 @@ can be a regular pattern of points or blocks in a dataspace.
MPI (Message Passing Interface).
<P>
+<DT><B>REFERENCE</B>
+<DD>
+<B>OBJECT REFERENCE:</B><BR>
+ A reference to an entire object in the current HDF5 file.
+ <P>
+ An object
+ reference points to an entire object in the current HDF5 file by storing
+ the relative file address (OID) of the object header for the object
+ pointed to. The relative file address of an object header is constant
+ for the life of the object. An object reference is of a fixed size in
+ the file.
+<P>
+<B>DATASET REGION REFERENCE:</B><BR>
+ Reference to a specific dataset region.
+ <P>
+ A dataset region reference points to a region of a dataset in the
+ current HDF5 file by storing the OID of the dataset and the global
+ heap offset of the region referenced. The region referenced is
+ located by retrieving the coordinates of the areas in the region
+ from the global heap. A dataset region reference is of a variable
+ size in the file.
+<P>
<DT><B>THREADSAFE (HDF5)</B>
<DD>A "thread-safe" version of HDF-5 (TSHDF5) is one that can be called from any thread of a multi-threaded program. Any calls to HDF
can be made in any order, and each individual HDF call will perform correctly. A calling program does not have to explicitly lock the HDF
@@ -221,7 +250,7 @@ library as regular HDF-5 library, with additional code to synchronize access to
<!-- <A HREF="helpdesk.mail.html"> -->
<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
hdfhelp@ncsa.uiuc.edu</A>
-<BR> <H6>Last Modified: September 1, 1999</H6><BR>
+<BR> <H6>Last Modified: January 5, 2000</H6><BR>
<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
</FONT>
<BR>