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[svn-r765] Changes since 19981016

Browse Source 
----------------------

./src/H5F.c
./src/H5Fpublic.h
	Added H5Freopen() as documented in earlier e-mails.  This is
	really just a wrapper around H5F_new().
This commit is contained in:
Robb Matzke 1998-10-19 12:46:40 -05:00
parent 80f2033326
commit c1d2006c0f
2 changed files with 54 additions and 2 deletions
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55
src/H5F.c
View File

@ -2108,13 +2108,13 @@ H5Fmount(hid_t loc_id, const char *name, hid_t child_id, hid_t plist_id)
*
*-------------------------------------------------------------------------
*/
hid_t
herr_t
H5Funmount(hid_t loc_id, const char *name)
{
H5G_entry_t *loc = NULL;
FUNC_ENTER(H5Funmount, FAIL);
H5TRACE2("i","is",loc_id,name);
H5TRACE2("e","is",loc_id,name);
/* Check args */
if (NULL==(loc=H5G_loc(loc_id))) {
@ -2133,6 +2133,57 @@ H5Funmount(hid_t loc_id, const char *name)
FUNC_LEAVE(SUCCEED);
}
/*-------------------------------------------------------------------------
* Function: H5Freopen
*
* Purpose: Reopen a file. The new file handle which is returned points
* to the same file as the specified file handle. Both handles
* share caches and other information. The only difference
* between the handles is that the new handle is not mounted
* anywhere and no files are mounted on it.
*
* Return: Success: New file ID
*
* Failure: FAIL
*
* Programmer: Robb Matzke
* Friday, October 16, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
hid_t
H5Freopen(hid_t file_id)
{
H5F_t *old_file=NULL;
H5F_t *new_file=NULL;
hid_t ret_value = -1;
FUNC_ENTER(H5Freopen, FAIL);
H5TRACE1("i","i",file_id);
if (H5I_FILE!=H5I_get_type(file_id) ||
NULL==(old_file=H5I_object(file_id))) {
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file");
}
if (NULL==(new_file=H5F_new(old_file->shared, NULL, NULL))) {
HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to reopen file");
}
if ((ret_value=H5I_register(H5I_FILE, new_file))<0) {
HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL,
"unable to atomize file handle");
}
done:
if (ret_value<0 && new_file) {
H5F_close(new_file);
}
FUNC_LEAVE(ret_value);
}
/*-------------------------------------------------------------------------
* Function: H5F_block_read

1
src/H5Fpublic.h
View File

@ -87,6 +87,7 @@ hbool_t H5Fis_hdf5 (const char *filename);
hid_t H5Fcreate (const char *filename, unsigned flags, hid_t create_plist,
hid_t access_plist);
hid_t H5Fopen (const char *filename, unsigned flags, hid_t access_plist);
hid_t H5Freopen(hid_t file_id);
herr_t H5Fflush(hid_t object_id, H5F_scope_t scope);
herr_t H5Fclose (hid_t file_id);
hid_t H5Fget_create_plist (hid_t file_id);