#include "asterisk.h"
#include "asterisk/mwi.h"
#include "asterisk/devicestate.h"
#include "asterisk/module.h"
#include "asterisk/stasis_message_router.h"
#include "asterisk/stasis.h"

Include dependency graph for res_mwi_devstate.c:

Functions
static void	__reg_module (void)

static void	__unreg_module (void)

struct ast_module *	AST_MODULE_SELF_SYM (void)

static int	load_module (void)

static int	mwi_cached_cb (void obj, void arg, int flags)

static void	mwi_update_cb (void data, struct stasis_subscription sub, struct stasis_message *msg)

static int	unload_module (void)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "MWI Device State Subscriptions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "30ef0c93b36035ec78c9cfd712d36d9b" , .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEVSTATE_PROVIDER, }

static const struct ast_module_info *	ast_module_info = &__mod_info

static struct stasis_subscription *	mwi_sub

Function Documentation

◆ __reg_module()

static void __reg_module ( void )

static

Definition at line 105 of file res_mwi_devstate.c.

◆ __unreg_module()

static void __unreg_module ( void )

static

Definition at line 105 of file res_mwi_devstate.c.

◆ AST_MODULE_SELF_SYM()

struct ast_module* AST_MODULE_SELF_SYM ( void )

Definition at line 105 of file res_mwi_devstate.c.

◆ load_module()

static int load_module ( void )

static

Definition at line 71 of file res_mwi_devstate.c.

References ao2_callback, ao2_ref, AST_MODFLAG_LOAD_ORDER, AST_MODPRI_DEVSTATE_PROVIDER, AST_MODULE_INFO(), AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, AST_MODULE_SUPPORT_CORE, ast_mwi_state_cache(), ast_mwi_state_type(), ast_mwi_topic_all(), ASTERISK_GPL_KEY, mwi_cached_cb(), mwi_update_cb(), NULL, OBJ_NODATA, stasis_cache_dump(), stasis_subscribe, stasis_subscription_accept_message_type(), STASIS_SUBSCRIPTION_FILTER_SELECTIVE, stasis_subscription_set_filter(), and unload_module().

 {
    struct ao2_container *cached;
 
    if (!(mwi_sub = stasis_subscribe(ast_mwi_topic_all(), mwi_update_cb, NULL))) {
       return AST_MODULE_LOAD_DECLINE;
    }
 
    if (stasis_subscription_accept_message_type(mwi_sub, ast_mwi_state_type())) {
       unload_module();
       return AST_MODULE_LOAD_DECLINE;
    }
 
    if (stasis_subscription_set_filter(mwi_sub, STASIS_SUBSCRIPTION_FILTER_SELECTIVE)) {
       unload_module();
       return AST_MODULE_LOAD_DECLINE;
    }
 
    cached = stasis_cache_dump(ast_mwi_state_cache(), NULL);
    if (!cached) {
       unload_module();
       return AST_MODULE_LOAD_DECLINE;
    }
    ao2_callback(cached, OBJ_NODATA, mwi_cached_cb, NULL);
    ao2_ref(cached, -1);
 
    return AST_MODULE_LOAD_SUCCESS;
 }

◆ mwi_cached_cb()

static int mwi_cached_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 56 of file res_mwi_devstate.c.

References mwi_update_cb(), and NULL.

Referenced by load_module().

 {
    struct stasis_message *msg = obj;
    mwi_update_cb(NULL, mwi_sub, msg);
 
    return 0;
 }

◆ mwi_update_cb()

static void mwi_update_cb	(	void *	data,
		struct stasis_subscription *	sub,
		struct stasis_message *	msg
	)

static

Definition at line 33 of file res_mwi_devstate.c.

References ast_debug, AST_DEVICE_INUSE, AST_DEVICE_NOT_INUSE, AST_DEVSTATE_CACHABLE, ast_devstate_changed(), ast_mwi_state_type(), ast_mwi_state::new_msgs, stasis_message_data(), stasis_message_type(), and ast_mwi_state::uniqueid.

Referenced by load_module(), and mwi_cached_cb().

 {
    struct ast_mwi_state *mwi_state;
 
    if (ast_mwi_state_type() != stasis_message_type(msg)) {
       return;
    }
 
    mwi_state = stasis_message_data(msg);
    if (!mwi_state) {
       return;
    }
 
    if (mwi_state->new_msgs > 0) {
       ast_debug(1, "Sending inuse devstate change for MWI:%s\n", mwi_state->uniqueid);
       ast_devstate_changed(AST_DEVICE_INUSE, AST_DEVSTATE_CACHABLE, "MWI:%s", mwi_state->uniqueid);
    } else {
       ast_debug(1, "Sending not inuse devstate change for MWI:%s\n", mwi_state->uniqueid);
       ast_devstate_changed(AST_DEVICE_NOT_INUSE, AST_DEVSTATE_CACHABLE, "MWI:%s", mwi_state->uniqueid);
    }
 }

◆ unload_module()

static int unload_module ( void )

static

Definition at line 64 of file res_mwi_devstate.c.

References stasis_unsubscribe().

Referenced by load_module().

 {
    mwi_sub = stasis_unsubscribe(mwi_sub);
 
    return 0;
 }

Variable Documentation

◆ __mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "MWI Device State Subscriptions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "30ef0c93b36035ec78c9cfd712d36d9b" , .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEVSTATE_PROVIDER, }

static

Definition at line 105 of file res_mwi_devstate.c.