- Created by Mike McGreevy, last modified by Barbara Jones on Apr 25, 2019
H5L_MOVE
Moves a link within an HDF5 file
Procedure:
H5L_MOVE(src_loc_id, src_name, dest_loc_id, dest_name, lcpl_id, lapl_id)
Signature:
herr_t H5Lmove( hid_t src_loc_id, const char *src_name, hid_t dest_loc_id, const char *dest_name, hid_t lcpl_id, hid_t lapl_id )
SUBROUTINE h5lmove_f(src_loc_id, src_name, dest_loc_id, dest_name, hdferr, &
lcpl_id, lapl_id)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: src_loc_id
! Original file or group identifier.
CHARACTER(LEN=*), INTENT(IN) :: src_name
! Original link name.
INTEGER(HID_T), INTENT(IN) :: dest_loc_id
! Destination file or group identifier.
CHARACTER(LEN=*), INTENT(IN) :: dest_name
! New link name.
INTEGER(HID_T), INTENT(OUT) :: hdferr ! Error code:
! 0 on success and -1 on failure
INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lcpl_id
! Link creation property list identifier
! to be associated with the new link.
INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id
! Link access property list identifier
! to be associated with the new link.
END SUBROUTINE h5lmove_f
Parameters:
hid_t src_loc_id | IN: Original location identifier; may be a file, group, dataset, named datatype or attribute identifier |
const char *src_name | IN: Original link name |
hid_t dest_loc_id | IN: Destination location identifier; may be a file, group, dataset, named datatype or attribute identifier |
const char *dest_name | IN: New link name |
hid_t lcpl_id | IN: Link creation property list identifier to be associated with the new link |
hid_t lapl_id | IN: Link access property list identifier to be associated with the new link |
Description:
H5L_MOVE moves a link within an HDF5 file. The original link, src_name, is removed from src_loc_id and the new link, dest_name, is inserted at dest_loc_id. This change is accomplished as an atomic operation.
src_loc_id and src_name identify the original link. src_loc_id is the original location identifier; src_name is the path to the link and is interpreted relative to src_loc_id.
dest_loc_id and dest_name identify the new link. dest_loc_id is either a file or group identifier; dest_name is the path to the link and is interpreted relative to dest_loc_id.
Note that H5L_MOVE does not modify the value of the link; the new link points to the same object as the original link pointed to. Furthermore, if the object pointed to by the original link was already open with a valid object identifier, that identifier will remain valid after the call to H5L_MOVE.
lcpl_id and lapl_id are the link creation and link access property lists, respectively, associated with the new link, dest_name.
Through these property lists, several properties are available to govern the behavior of H5L_MOVE. The property controlling creation of missing intermediate groups is set in the link creation property list with H5P_SET_CREATE_INTERMEDIATE_GROUP; H5L_MOVE ignores any other properties in the link creation property list. Properties controlling character encoding, link traversals, and external link prefixes are set in the link access property list with H5P_SET_CHAR_ENCODING, H5P_SET_NLINKS, and H5P_SET_ELINK_PREFIX, respectively.
Exercise care in moving links as it is possible to render data in a file inaccessible with H5L_MOVE. If the link being moved is on the only path leading to an HDF5 object, that object may become permanently inaccessible in the file.
Returns:
Returns a non-negative value if successful; otherwise returns a negative value.
Example:
Coming Soon!
History:
| Release | Change |
|---|---|
| 1.8.0 | Function introduced in this release. |
--- Last Modified: April 25, 2019 | 12:50 PM