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- /*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2007 - 2008, Digium, Inc.
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
- /*! \file
- *
- * \brief Asterisk datastore objects
- */
- /*** MODULEINFO
- <support_level>core</support_level>
- ***/
- #include "asterisk.h"
- #include "asterisk/_private.h"
- #include "asterisk/datastore.h"
- #include "asterisk/utils.h"
- #include "asterisk/astobj2.h"
- #include "asterisk/uuid.h"
- #include "asterisk/module.h"
- /*! \brief Number of buckets for datastore container */
- #define DATASTORE_BUCKETS 53
- struct ast_datastore *__ast_datastore_alloc(
- const struct ast_datastore_info *info, const char *uid, struct ast_module *mod,
- const char *file, int line, const char *function)
- {
- struct ast_datastore *datastore = NULL;
- /* Make sure we at least have type so we can identify this */
- if (!info) {
- return NULL;
- }
- datastore = __ast_calloc(1, sizeof(*datastore), file, line, function);
- if (!datastore) {
- return NULL;
- }
- datastore->info = info;
- datastore->mod = mod;
- if (!ast_strlen_zero(uid) && !(datastore->uid = ast_strdup(uid))) {
- ast_free(datastore);
- datastore = NULL;
- }
- ast_module_ref(mod);
- return datastore;
- }
- int ast_datastore_free(struct ast_datastore *datastore)
- {
- int res = 0;
- if (!datastore) {
- return 0;
- }
- /* Using the destroy function (if present) destroy the data */
- if (datastore->info->destroy != NULL && datastore->data != NULL) {
- datastore->info->destroy(datastore->data);
- datastore->data = NULL;
- }
- /* Free allocated UID memory */
- if (datastore->uid != NULL) {
- ast_free((void *) datastore->uid);
- datastore->uid = NULL;
- }
- ast_module_unref(datastore->mod);
- /* Finally free memory used by ourselves */
- ast_free(datastore);
- return res;
- }
- AO2_STRING_FIELD_HASH_FN(ast_datastore, uid);
- AO2_STRING_FIELD_CMP_FN(ast_datastore, uid);
- struct ao2_container *ast_datastores_alloc(void)
- {
- return ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
- DATASTORE_BUCKETS, ast_datastore_hash_fn, NULL, ast_datastore_cmp_fn);
- }
- int ast_datastores_add(struct ao2_container *datastores, struct ast_datastore *datastore)
- {
- ast_assert(datastore != NULL);
- ast_assert(datastore->info != NULL);
- ast_assert(!ast_strlen_zero(datastore->uid));
- if (!ao2_link(datastores, datastore)) {
- return -1;
- }
- return 0;
- }
- void ast_datastores_remove(struct ao2_container *datastores, const char *name)
- {
- ao2_find(datastores, name, OBJ_SEARCH_KEY | OBJ_UNLINK | OBJ_NODATA);
- }
- struct ast_datastore *ast_datastores_find(struct ao2_container *datastores, const char *name)
- {
- return ao2_find(datastores, name, OBJ_SEARCH_KEY);
- }
- static void datastore_destroy(void *obj)
- {
- struct ast_datastore *datastore = obj;
- /* Using the destroy function (if present) destroy the data */
- if (datastore->info->destroy != NULL && datastore->data != NULL) {
- datastore->info->destroy(datastore->data);
- datastore->data = NULL;
- }
- ast_free((void *) datastore->uid);
- datastore->uid = NULL;
- }
- struct ast_datastore *ast_datastores_alloc_datastore(const struct ast_datastore_info *info, const char *uid)
- {
- struct ast_datastore *datastore;
- char uuid_buf[AST_UUID_STR_LEN];
- const char *uid_ptr = uid;
- if (!info) {
- return NULL;
- }
- datastore = ao2_alloc(sizeof(*datastore), datastore_destroy);
- if (!datastore) {
- return NULL;
- }
- datastore->info = info;
- if (ast_strlen_zero(uid)) {
- /* They didn't provide an ID so we'll provide one ourself */
- uid_ptr = ast_uuid_generate_str(uuid_buf, sizeof(uuid_buf));
- }
- datastore->uid = ast_strdup(uid_ptr);
- if (!datastore->uid) {
- ao2_ref(datastore, -1);
- return NULL;
- }
- return datastore;
- }
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