750856c53a
Added link to Tools.html
Clean up formatting.
Added RM_H5R.html, Ragged Arrays, but link is commented out for Beta.
RM_H5.html
H5version Removed patch number parameter.
H5check_version Removed patch number parameter.
Corrected datatype to unsigned (was unsigned *).
Added missing "Purpose:" statement.
RM_H5A.html
H5Aread/write Added reference to data conversion limitations.
RM_H5D.html
H5Dwrite Added "Writing to an external dataset will fail
if the HDF5 file is not open for writing."
H5Dread/write Added reference to data conversion limitations.
RM_H5F.html
H5Fflush Added H5Fflush.
RM_H5G.html
H5Gget_stat Fixed formatting error.
Added mtime to the description of the data structure.
Added the following "Note:", per Robb's checkin mesage:
"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 mtime
value of 0 (zero)."
Corrected successful return value.
H5Gset_comment Added the following statement to "Description:"
"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.
RM_H5P.html
Cleaned up file formatting.
H5Pset_filter Added these three functions.
H5Pget_nfilters
H5Pget_filter
H5Pget_deflate Removed these three functions. (Actually,
H5Pset_compression they are commented out, in case they should
H5Pget_compression be reinstated.)
RM_H5R.html
Intial version of H5R reference manual entry, but still largely
just a template.
Not yet ready for distribution.
Links to this document are currently commented out.
RM_H5S.html
H5S_set_extent_simple Changed name to H5Sselect_extent_simple.
now: H5Sselect_extent_simpl
H5Sselect_npoints Corrected return value.
Now: H5Sget_select_npoints
H5Sget_class Reinstated to RM. Changed name.
now: H5Sget_space_type
H5Soffset_simple Added these 6 functions. The there is a
H5Sextent_copy link to Dataspaces.html for the 10 "not yet
H5Sset_extent_none implemented (NYI)" functions.
H5Sselect_all
H5Sselect_none
H5Sselect_valid
RM_H5T.html
Added the following datatypes (though the list of native datatypes
is commented out):
H5T_NATIVE_HSIZE
H5T_NATIVE_HSSIZE
H5T_NATIVE_HERR
H5T_NATIVE_HBOOL
Tools.html
Corrected h5ls and h5repart sections.
Glossary.html
Unlinked for Beta.
Copyright.html
New file.
Copyright statement, linked into User's Guide and Reference Manual.
General
Changed the following function names:
From: To:
H5version H5get_libversion
H5vers_check H5check_version
H5Anum_attrs H5Aget_num_attrs
H5Fget_create_template H5Fget_create_plist
H5Fget_access_template H5Fget_access_plist
And associated "template" -> "property list" edits.
H5Gstat H5Gget_stat
H5Sextent_npoints H5Sget_simple_extent_npoints
H5Sextent_ndims H5Sget_simple_extent_ndims
H5Sextent_dims H5Sget_simple_extent_dims
H5Sget_class H5Sget_simple_extent_type
H5Sselect_npoints H5Sget_select_npoints
Added links to Tools.html and RM_H5R.html (Ragged Arrays),
though link to RM_H5R.html is commented out for now.
224 lines
7.2 KiB
HTML
Executable File
224 lines
7.2 KiB
HTML
Executable File
<html>
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<head><title>
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HDF5/H5 Draft API Specification
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</title></head>
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<body>
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<hr>
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<center>
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<a href="RM_H5Front.html">HDF5 Reference Manual</a>
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H5
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<a href="RM_H5A.html">H5A</a>
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<a href="RM_H5D.html">H5D</a>
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<a href="RM_H5E.html">H5E</a>
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<a href="RM_H5F.html">H5F</a>
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<a href="RM_H5G.html">H5G</a>
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<a href="RM_H5P.html">H5P</a>
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<a href="RM_H5S.html">H5S</a>
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<a href="RM_H5T.html">H5T</a>
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<a href="RM_H5Z.html">H5Z</a>
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<a href="Tools.html">Tools</a>
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<!--
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<a href="Glossary.html">Glossary</a>
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-->
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</center>
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<hr>
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<center>
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<h1>H5: General Library Functions</h1>
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</center>
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These functions serve general-purpose needs of the HDF5 library
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and it users.
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<table border=0>
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<tr><td valign=top>
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<ul>
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<li><a href="#Library-Open">H5open</a>
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<li><a href="#Library-Close">H5close</a>
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</ul>
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</td><td> </td><td valign=top>
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<ul>
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<li><a href="#Library-Version">H5get_libversion</a>
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<li><a href="#Library-VersCheck">H5check_version</a>
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</ul>
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</td><td> </td><td valign=top>
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<ul>
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<li><a href="#Library-DontAtExit">H5dont_atexit</a>
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</ul>
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</td></tr>
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</table>
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<hr>
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<dl>
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<dt><strong>Name:</strong> <a name="Library-Open">H5open</a>
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<dt><strong>Signature:</strong>
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<dd><em>herr_t</em> <code>H5open</code>(<em>void</em>)
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<dt><strong>Purpose:</strong>
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<dd>Flushes all data to disk, closes file identifiers, and cleans up memory.
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<dt><strong>Description:</strong>
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<dd><code>H5open</code> initialize the library. This function is
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normally called automatically, but if you find that an
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HDF5 library function is failing inexplicably, try calling
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this function first.
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<dt><strong>Parameters:</strong>
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<dl>
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<dt>None.
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</dl>
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<dt><strong>Returns:</strong>
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<dd>Returns SUCCEED (0) if successful;
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otherwise FAIL (-1).
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</dl>
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<hr>
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<dl>
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<dt><strong>Name:</strong> <a name="Library-Close">H5close</a>
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<dt><strong>Signature:</strong>
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<dd><em>herr_t</em> <code>H5close</code>(<em>void</em>)
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<dt><strong>Purpose:</strong>
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<dd>Flushes all data to disk, closes file identifiers, and cleans up memory.
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<dt><strong>Description:</strong>
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<dd><code>H5close</code> flushes all data to disk,
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closes all file identifiers, and cleans up all memory used by
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the library. This function is generall called when the
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application calls <code>exit</code>, but may be called earlier
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in event of an emergency shutdown or out of desire to free all
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resources used by the HDF5 library.
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<dt><strong>Parameters:</strong>
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<dl>
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<dt>None.
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</dl>
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<dt><strong>Returns:</strong>
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<dd>Returns SUCCEED (0) if successful;
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otherwise FAIL (-1).
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</dl>
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<hr>
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<dl>
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<dt><strong>Name:</strong> <a name="Library-DontAtExit">H5dont_atexit</a>
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<dt><strong>Signature:</strong>
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<dd><em>herr_t</em> <code>H5dont_atexit</code>(<em>void</em>)
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<dt><strong>Purpose:</strong>
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<dd>Instructs library not to install <code>atexit</code> cleanup routine.
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<dt><strong>Description:</strong>
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<dd><code>H5dont_atexit</code> indicates to the library that an
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<code>atexit()</code> cleanup routine should not be installed.
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The major purpose for this is in situations where the
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library is dynamically linked into an application and is
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un-linked from the application before <code>exit()</code> gets
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called. In those situations, a routine installed with
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<code>atexit()</code> would jump to a routine which was
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no longer in memory, causing errors.
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<p>
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In order to be effective, this routine <em>must</em> be called
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before any other HDF function calls, and must be called each
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time the library is loaded/linked into the application
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(the first time and after it's been un-loaded).
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<dt><strong>Parameters:</strong>
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<dl>
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<dt>None.
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</dl>
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<dt><strong>Returns:</strong>
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<dd>Returns SUCCEED (0) if successful;
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otherwise FAIL (-1).
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</dl>
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<hr>
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<dl>
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<dt><strong>Name:</strong> <a name="Library-Version">H5get_libversion</a>
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<dt><strong>Signature:</strong>
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<dd><em>herr_t</em> <code>H5get_libversion</code>(<em>unsigned *</em><code>majnum</code>,
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<em>unsigned *</em><code>minnum</code>,
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<em>unsigned *</em><code>relnum</code>
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)
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<dt><strong>Purpose:</strong>
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<dd>Returns the HDF library release number.
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<dt><strong>Description:</strong>
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<dd><code>H5get_libversion</code> retrieves the major, minor, and release
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numbers of the version of the HDF library which is linked to
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the application.
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<dt><strong>Parameters:</strong>
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<dl>
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<dt><em>unsigned *</em><code>majnum</code>
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<dd>The major version of the library.
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<dt><em>unsigned *</em><code>minnum</code>
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<dd>The minor version of the library.
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<dt><em>unsigned *</em><code>relnum</code>
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<dd>The release number of the library.
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</dl>
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<dt><strong>Returns:</strong>
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<dd>Returns SUCCEED (0) if successful;
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otherwise FAIL (-1).
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</dl>
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<hr>
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<dl>
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<dt><strong>Name:</strong> <a name="Library-VersCheck">H5check_version</a>
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<dt><strong>Signature:</strong>
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<dd><em>herr_t</em> <code>H5check_version</code>(<em>unsigned</em> <code>majnum</code>,
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<em>unsigned</em> <code>minnum</code>,
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<em>unsigned</em> <code>relnum</code>
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)
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<dt><strong>Purpose:</strong>
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<dd>
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<dt><strong>Description:</strong>
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<dd><code>H5check_version</code> verifies that the arguments match the
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version numbers compiled into the library. This function is intended
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to be called from user to verify that the versions of header files
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compiled into the application match the version of the HDF5 library.
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<p>
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Due to the risks of data corruption or segmentation faults,
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<code>H5check_version</code> causes the application to abort if the
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version numbers do not match.
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<dt><strong>Parameters:</strong>
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<dl>
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<dt><em>unsigned *</em><code>majnum</code>
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<dd>The major version of the library.
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<dt><em>unsigned *</em><code>minnum</code>
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<dd>The minor version of the library.
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<dt><em>unsigned *</em><code>relnum</code>
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<dd>The release number of the library.
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<dt><em>unsigned *</em><code>patnum</code>
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<dd>The patch number of the library.
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</dl>
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<dt><strong>Returns:</strong>
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<dd>Returns SUCCEED (0) if successful.
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Upon failure, this function causes the application to abort.
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</dl>
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<hr>
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<center>
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<a href="RM_H5Front.html">HDF5 Reference Manual</a>
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H5
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<a href="RM_H5A.html">H5A</a>
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<a href="RM_H5D.html">H5D</a>
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<a href="RM_H5E.html">H5E</a>
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<a href="RM_H5F.html">H5F</a>
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<a href="RM_H5G.html">H5G</a>
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<a href="RM_H5P.html">H5P</a>
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<a href="RM_H5S.html">H5S</a>
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<a href="RM_H5T.html">H5T</a>
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<a href="RM_H5Z.html">H5Z</a>
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<a href="Tools.html">Tools</a>
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<!--
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<a href="Glossary.html">Glossary</a>
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-->
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</center>
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<hr>
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<address>
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<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a>
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<br>
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Last modified: 2 September 1998
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</body>
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</html>
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