Copyright (c) 2001 by Sun Microsystems, Inc. All rights reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
cc [ flag... ] file... -lrsm [ library... ] #include <rsmapi.h> int rsm_memseg_import_set_mode(rsm_memseg_import_handle_t memseg, rsm_barrier_mode_t mode);
int rsm_memseg_import_get_mode(rsm_memseg_import_handle_t memseg, rsm_barrier_mode_t *mode);
The rsm_memseg_import_set_mode() function provides support for optional explicit barrier scoping in the functions described on the rsm_memseg_import_get(3RSM) and rsm_memseg_import_put(3RSM) manual pages.. The two valid barrier modes are RSM_BARRIER_MODE_EXPLICIT and RSM_BARRIER_MODE_IMPLICIT. By default, the barrier mode is set to RSM_BARRIER_MODE_IMPLICIT. When the mode is RSM_BARRIER_MODE_IMPLICIT, an implicit barrier open and barrier close is applied to the put operation. Irrespective of the mode set, the barrier must be initialized using the rsm_memseg_import_init_barrier(3RSM) function before any barrier operations, either implicit or explicit, are used.
The rsm_memseg_import_get_mode() function obtains the current value of the mode used for barrier scoping in put functions.
Upon successful completion, these functions return 0. Otherwise, an error value is returned to indicate the error.
The rsm_memseg_import_set_mode() and rsm_memseg_import_get_mode() functions can return the following errors: RSMERR_BAD_SEG_HNDL
Invalid segment handle.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
| Interface Stability Evolving |
| MT-Level MT-Safe |
rsm_memseg_import_get(3RSM), rsm_memseg_import_init_barrier(3RSM), rsm_memseg_import_put(3RSM), attributes(5)