106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2014, Schmooze Com, Inc.
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*
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* Jason Parker <jason.parker@schmoozecom.com>
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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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/*** 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/mwi.h"
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#include "asterisk/devicestate.h"
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#include "asterisk/module.h"
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#include "asterisk/stasis_message_router.h"
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#include "asterisk/stasis.h"
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static struct stasis_subscription *mwi_sub;
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static void mwi_update_cb(void *data, struct stasis_subscription *sub,
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struct stasis_message *msg)
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{
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struct ast_mwi_state *mwi_state;
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if (ast_mwi_state_type() != stasis_message_type(msg)) {
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return;
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}
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mwi_state = stasis_message_data(msg);
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if (!mwi_state) {
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return;
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}
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if (mwi_state->new_msgs > 0) {
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ast_debug(1, "Sending inuse devstate change for MWI:%s\n", mwi_state->uniqueid);
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ast_devstate_changed(AST_DEVICE_INUSE, AST_DEVSTATE_CACHABLE, "MWI:%s", mwi_state->uniqueid);
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} else {
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ast_debug(1, "Sending not inuse devstate change for MWI:%s\n", mwi_state->uniqueid);
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ast_devstate_changed(AST_DEVICE_NOT_INUSE, AST_DEVSTATE_CACHABLE, "MWI:%s", mwi_state->uniqueid);
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}
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}
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static int mwi_cached_cb(void *obj, void *arg, int flags)
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{
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struct stasis_message *msg = obj;
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mwi_update_cb(NULL, mwi_sub, msg);
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return 0;
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}
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static int unload_module(void)
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{
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mwi_sub = stasis_unsubscribe(mwi_sub);
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return 0;
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}
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static int load_module(void)
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{
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struct ao2_container *cached;
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if (!(mwi_sub = stasis_subscribe(ast_mwi_topic_all(), mwi_update_cb, NULL))) {
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return AST_MODULE_LOAD_DECLINE;
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}
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if (stasis_subscription_accept_message_type(mwi_sub, ast_mwi_state_type())) {
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unload_module();
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return AST_MODULE_LOAD_DECLINE;
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}
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if (stasis_subscription_set_filter(mwi_sub, STASIS_SUBSCRIPTION_FILTER_SELECTIVE)) {
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unload_module();
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return AST_MODULE_LOAD_DECLINE;
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}
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cached = stasis_cache_dump(ast_mwi_state_cache(), NULL);
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if (!cached) {
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unload_module();
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return AST_MODULE_LOAD_DECLINE;
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}
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ao2_callback(cached, OBJ_NODATA, mwi_cached_cb, NULL);
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ao2_ref(cached, -1);
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return AST_MODULE_LOAD_SUCCESS;
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "MWI Device State Subscriptions",
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.support_level = AST_MODULE_SUPPORT_CORE,
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_DEVSTATE_PROVIDER,
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);
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