Returns a list of open object identifiers
Procedure:
H5F_GET_OBJ_IDS (file_id, types, max_objs, obj_id_list)
Signature:
ssize_t H5Fget_obj_ids( hid_t file_id, unsigned int types, size_t max_objs, hid_t *obj_id_list )
SUBROUTINE h5fget_obj_ids_f(file_id, obj_type, max_objs, obj_ids, hdferr, num_objs)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: file_id ! File identifier
INTEGER, INTENT(IN) :: obj_type ! Object types, possible values are:
! H5F_OBJ_FILE_F
! H5F_OBJ_GROUP_F
! H5F_OBJ_DATASET_F
! H5F_OBJ_DATATYPE_F
! H5F_OBJ_ALL_F
INTEGER(SIZE_T), INTENT(IN) :: max_objs ! Maximum number of object
! identifiers to retrieve
INTEGER(HID_T), DIMENSION(*), INTENT(OUT) :: obj_ids
! Array of requested object
! identifiers
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
INTEGER(SIZE_T), INTENT(OUT), OPTIONAL :: num_objs
! number of open objects of the specified type
END SUBROUTINE h5fget_obj_ids_f
Parameters:
hid_t file_id | IN: Identifier of a currently-open HDF5 file or H5F_OBJ_ALL for all currently-open HDF5 files |
unsigned int types | IN: Type of object for which identifiers are to be returned |
size_t max_objs | IN: Maximum number of object identifiers to place into obj_id_list |
hid_t *obj_id_list | OUT: Pointer to the returned list of open object identifiers |
Description:
Given the file identifier file_id and the type of objects to be identified, types, H5F_GET_OBJ_IDS returns the list of identifiers for all open HDF5 objects fitting the specified criteria.
To retrieve identifiers for open objects in all HDF5 application files that are currently open, pass the value H5F_OBJ_ALL in file_id.
The types of object identifiers to be retrieved are specified in types using the codes listed for the same parameter in H5F_GET_OBJ_COUNT.
To retrieve a count of open objects, use the H5F_GET_OBJ_COUNT function. This count can be used to set the max_objs parameter.
Returns:
Returns number of objects placed into obj_id_list if successful; otherwise returns a negative value.
Example:
History:
| Release | Change |
|---|
| 1.6.0 | C function introduced in this release. |
1.6.8 &
1.8.2 | C function return type changed to ssize_t
and max_objs parameter datatype changed to size_t. |
--- Last Modified: September 20, 2021 | 09:11 AM
