diff options
Diffstat (limited to 'src/H5F.c')
| -rw-r--r-- | src/H5F.c | 55 |
1 files changed, 53 insertions, 2 deletions
@@ -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. |