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authorRobb Matzke <matzke@llnl.gov>1998-10-19 17:46:40 (GMT)
committerRobb Matzke <matzke@llnl.gov>1998-10-19 17:46:40 (GMT)
commitc1d2006c0fe7b2e565a78f25b649d9b463c557bf (patch)
treea2f777fe8bbbfdac606e06dd313f6898bc733bcf /src
parent80f20333264434b449ba014161899a6d7b522b98 (diff)
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[svn-r765] Changes since 19981016
---------------------- ./src/H5F.c ./src/H5Fpublic.h Added H5Freopen() as documented in earlier e-mails. This is really just a wrapper around H5F_new().
Diffstat (limited to 'src')
-rw-r--r--src/H5F.c55
-rw-r--r--src/H5Fpublic.h1
2 files changed, 54 insertions, 2 deletions
diff --git a/src/H5F.c b/src/H5F.c
index b50614d..e71dcf1 100644
--- a/src/H5F.c
+++ b/src/H5F.c
@@ -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))) {
@@ -2135,6 +2135,57 @@ H5Funmount(hid_t loc_id, const char *name)
/*-------------------------------------------------------------------------
+ * 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
*
* Purpose: Reads some data from a file/server/etc into a buffer.
diff --git a/src/H5Fpublic.h b/src/H5Fpublic.h
index 6a81d52..239b321 100644
--- a/src/H5Fpublic.h
+++ b/src/H5Fpublic.h
@@ -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);