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| author | Frank Baker <fbaker@hdfgroup.org> | 2000-11-01 19:01:55 (GMT) |
|---|---|---|
| committer | Frank Baker <fbaker@hdfgroup.org> | 2000-11-01 19:01:55 (GMT) |
| commit | 180a47a037320fc8fcf48cf3114e1f548d019659 (patch) | |
| tree | 62cc16e0b2fce361493884f9a7c3f4e322fb969d /doc/html/Groups.html | |
| parent | 6d04c130ad005d0b34f73592f9a3722e8bf7cdf4 (diff) | |
| download | hdf5-180a47a037320fc8fcf48cf3114e1f548d019659.zip hdf5-180a47a037320fc8fcf48cf3114e1f548d019659.tar.gz hdf5-180a47a037320fc8fcf48cf3114e1f548d019659.tar.bz2 | |
[svn-r2789] Purpose:
To warn users that RM_H5G.html and Groups.html can render groups and
datasets inaccessible in a file.
Solution:
Modified RM_H5G.html and Groups.html as follows:
-- Added warning (new section) to Groups.html that H5Gunlink and
H5Gmove can result in inaccessible groups and datasets.
-- Added links to that new section from H5Gunlink and H5Gmove
in RM_H5G.html.
Platforms tested:
IE5
Diffstat (limited to 'doc/html/Groups.html')
| -rw-r--r-- | doc/html/Groups.html | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/doc/html/Groups.html b/doc/html/Groups.html index 44ca0fb..be5844f 100644 --- a/doc/html/Groups.html +++ b/doc/html/Groups.html @@ -307,6 +307,33 @@ string is returned. </dl> + <a name="H5GUnlinkToCorrupt"> + <h2>6. Unlinking Datasets with H5Gmove and H5Gunlink</h2> + </a> + + <p>Exercise caution in the use of <code>H5Gmove</code> and + <code>H5Gunlink</code>. + + <p>Note that <code>H5Gmove</code> and <code>H5Gunlink</code> + each include a step that unlinks pointers to a set or group. + If the link that is removed is on the only path leading + to a dataset or group, that dataset or group will become + inaccessible in the file. + + <p>Consider the following example. Assume that the group + <code>group2</code> can only be accessed via the following path, + where <code>top_group</code> is a member of the file's root group: + <pre> + <code>/top_group/group1/group2/</code> </pre> + Using <code>H5Gmove</code>, <code>top_group</code> is renamed + to be a member of <code>group2</code>. At this point, since + <code>top_group</code> was the only route from the root group + to <code>group1</code>, there is no longer a path by which + one can access <code>group1</code>, <code>group2</code>, or + any member datasets. + <code>top_group</code> and any member datasets have also + become inaccessible. + <hr> <center> @@ -359,7 +386,7 @@ <!-- Created: Tue Jan 27 09:11:27 EST 1998 --> <!-- hhmts start --> -Last modified: 14 October 1999 +Last modified: 1 November 2000 <!-- hhmts end --> </body> |