98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
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/*
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* astobj2_global - global containers for AO2 objects.
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*
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* Copyright (C) 2006 Marta Carbone, Luigi Rizzo - Univ. di Pisa, Italy
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Functions implementing ao2_global_obj routines.
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*
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* \author Richard Mudgett <rmudgett@digium.com>
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/utils.h"
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void *__ao2_global_obj_replace(struct ao2_global_obj *holder, void *obj, const char *tag, const char *file, int line, const char *func, const char *name)
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{
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void *obj_old;
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if (!holder) {
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/* For sanity */
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ast_log(LOG_ERROR, "Must be called with a global object!\n");
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ast_assert(0);
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return NULL;
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}
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if (__ast_rwlock_wrlock(file, line, func, &holder->lock, name)) {
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/* Could not get the write lock. */
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ast_assert(0);
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return NULL;
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}
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if (obj) {
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__ao2_ref(obj, +1, tag, file, line, func);
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}
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obj_old = holder->obj;
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holder->obj = obj;
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__ast_rwlock_unlock(file, line, func, &holder->lock, name);
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return obj_old;
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}
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int __ao2_global_obj_replace_unref(struct ao2_global_obj *holder, void *obj, const char *tag, const char *file, int line, const char *func, const char *name)
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{
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void *obj_old;
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obj_old = __ao2_global_obj_replace(holder, obj, tag, file, line, func, name);
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if (obj_old) {
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__ao2_ref(obj_old, -1, tag, file, line, func);
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return 1;
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}
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return 0;
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}
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void *__ao2_global_obj_ref(struct ao2_global_obj *holder, const char *tag, const char *file, int line, const char *func, const char *name)
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{
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void *obj;
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if (!holder) {
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/* For sanity */
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ast_log(LOG_ERROR, "Must be called with a global object!\n");
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ast_assert(0);
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return NULL;
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}
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if (__ast_rwlock_rdlock(file, line, func, &holder->lock, name)) {
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/* Could not get the read lock. */
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ast_assert(0);
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return NULL;
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}
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obj = holder->obj;
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if (obj) {
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__ao2_ref(obj, +1, tag, file, line, func);
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}
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__ast_rwlock_unlock(file, line, func, &holder->lock, name);
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return obj;
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}
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