res_pjsip_registrar_expire: Refactor into res_pjsip_register
res_pjsip_registrar_expire remains as an empty module for now. Change-Id: Ib93698938bae548d2199cb542f3692d1a171239f
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@ -1091,6 +1091,93 @@ static pjsip_module registrar_module = {
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.on_rx_request = registrar_on_rx_request,
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};
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/*! \brief Thread keeping things alive */
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static pthread_t check_thread = AST_PTHREADT_NULL;
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/*! \brief The global interval at which to check for contact expiration */
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static unsigned int check_interval;
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/*! \brief Callback function which deletes a contact */
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static int expire_contact(void *obj, void *arg, int flags)
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{
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struct ast_sip_contact *contact = obj;
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struct ast_named_lock *lock;
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lock = ast_named_lock_get(AST_NAMED_LOCK_TYPE_MUTEX, "aor", contact->aor);
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if (!lock) {
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return 0;
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}
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/*
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* We need to check the expiration again with the aor lock held
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* in case another thread is attempting to renew the contact.
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*/
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ao2_lock(lock);
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if (ast_tvdiff_ms(ast_tvnow(), contact->expiration_time) > 0) {
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ast_sip_location_delete_contact(contact);
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}
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ao2_unlock(lock);
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ast_named_lock_put(lock);
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return 0;
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}
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static void *check_expiration_thread(void *data)
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{
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struct ao2_container *contacts;
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struct ast_variable *var;
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char *time = alloca(64);
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while (check_interval) {
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sleep(check_interval);
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sprintf(time, "%ld", ast_tvnow().tv_sec);
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var = ast_variable_new("expiration_time <=", time, "");
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ast_debug(4, "Woke up at %s Interval: %d\n", time, check_interval);
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contacts = ast_sorcery_retrieve_by_fields(ast_sip_get_sorcery(), "contact",
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AST_RETRIEVE_FLAG_MULTIPLE, var);
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ast_variables_destroy(var);
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if (contacts) {
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ast_debug(3, "Expiring %d contacts\n", ao2_container_count(contacts));
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ao2_callback(contacts, OBJ_NODATA, expire_contact, NULL);
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ao2_ref(contacts, -1);
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}
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}
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return NULL;
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}
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static void expiration_global_loaded(const char *object_type)
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{
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check_interval = ast_sip_get_contact_expiration_check_interval();
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/* Observer calls are serialized so this is safe without it's own lock */
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if (check_interval) {
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if (check_thread == AST_PTHREADT_NULL) {
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if (ast_pthread_create_background(&check_thread, NULL, check_expiration_thread, NULL)) {
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ast_log(LOG_ERROR, "Could not create thread for checking contact expiration.\n");
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return;
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}
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ast_debug(3, "Interval = %d, starting thread\n", check_interval);
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}
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} else {
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if (check_thread != AST_PTHREADT_NULL) {
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pthread_kill(check_thread, SIGURG);
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pthread_join(check_thread, NULL);
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check_thread = AST_PTHREADT_NULL;
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ast_debug(3, "Interval = 0, shutting thread down\n");
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}
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}
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}
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/*! \brief Observer which is used to update our interval when the global setting changes */
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static struct ast_sorcery_observer expiration_global_observer = {
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.loaded = expiration_global_loaded,
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};
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static int load_module(void)
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{
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const pj_str_t STR_REGISTER = { "REGISTER", 8 };
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@ -1113,11 +1200,24 @@ static int load_module(void)
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ast_manager_register_xml(AMI_SHOW_REGISTRATION_CONTACT_STATUSES, EVENT_FLAG_SYSTEM,
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ami_show_registration_contact_statuses);
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ast_sorcery_observer_add(ast_sip_get_sorcery(), "global", &expiration_global_observer);
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ast_sorcery_reload_object(ast_sip_get_sorcery(), "global");
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int unload_module(void)
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{
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if (check_thread != AST_PTHREADT_NULL) {
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check_interval = 0;
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pthread_kill(check_thread, SIGURG);
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pthread_join(check_thread, NULL);
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check_thread = AST_PTHREADT_NULL;
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}
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ast_sorcery_observer_remove(ast_sip_get_sorcery(), "global", &expiration_global_observer);
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ast_manager_unregister(AMI_SHOW_REGISTRATIONS);
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ast_manager_unregister(AMI_SHOW_REGISTRATION_CONTACT_STATUSES);
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ast_sip_unregister_service(®istrar_module);
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@ -19,132 +19,29 @@
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/*** MODULEINFO
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<depend>pjproject</depend>
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<depend>res_pjsip</depend>
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<support_level>core</support_level>
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<support_level>extended</support_level>
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***/
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/*
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* This module has been refactored into res_pjsip_registrar
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*/
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#include "asterisk.h"
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#include <pjsip.h>
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#include <sys/time.h>
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#include <signal.h>
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#include "asterisk/res_pjsip.h"
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#include "asterisk/module.h"
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#include "asterisk/named_locks.h"
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/*! \brief Thread keeping things alive */
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static pthread_t check_thread = AST_PTHREADT_NULL;
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/*! \brief The global interval at which to check for contact expiration */
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static unsigned int check_interval;
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/*! \brief Callback function which deletes a contact */
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static int expire_contact(void *obj, void *arg, int flags)
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{
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struct ast_sip_contact *contact = obj;
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struct ast_named_lock *lock;
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lock = ast_named_lock_get(AST_NAMED_LOCK_TYPE_MUTEX, "aor", contact->aor);
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if (!lock) {
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return 0;
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}
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/*
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* We need to check the expiration again with the aor lock held
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* in case another thread is attempting to renew the contact.
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*/
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ao2_lock(lock);
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if (ast_tvdiff_ms(ast_tvnow(), contact->expiration_time) > 0) {
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ast_sip_location_delete_contact(contact);
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}
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ao2_unlock(lock);
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ast_named_lock_put(lock);
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return 0;
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}
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static void *check_expiration_thread(void *data)
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{
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struct ao2_container *contacts;
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struct ast_variable *var;
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char *time = alloca(64);
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while (check_interval) {
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sleep(check_interval);
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sprintf(time, "%ld", ast_tvnow().tv_sec);
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var = ast_variable_new("expiration_time <=", time, "");
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ast_debug(4, "Woke up at %s Interval: %d\n", time, check_interval);
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contacts = ast_sorcery_retrieve_by_fields(ast_sip_get_sorcery(), "contact",
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AST_RETRIEVE_FLAG_MULTIPLE, var);
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ast_variables_destroy(var);
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if (contacts) {
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ast_debug(3, "Expiring %d contacts\n", ao2_container_count(contacts));
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ao2_callback(contacts, OBJ_NODATA, expire_contact, NULL);
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ao2_ref(contacts, -1);
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}
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}
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return NULL;
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}
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static void expiration_global_loaded(const char *object_type)
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{
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check_interval = ast_sip_get_contact_expiration_check_interval();
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/* Observer calls are serialized so this is safe without it's own lock */
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if (check_interval) {
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if (check_thread == AST_PTHREADT_NULL) {
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if (ast_pthread_create_background(&check_thread, NULL, check_expiration_thread, NULL)) {
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ast_log(LOG_ERROR, "Could not create thread for checking contact expiration.\n");
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return;
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}
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ast_debug(3, "Interval = %d, starting thread\n", check_interval);
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}
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} else {
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if (check_thread != AST_PTHREADT_NULL) {
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pthread_kill(check_thread, SIGURG);
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pthread_join(check_thread, NULL);
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check_thread = AST_PTHREADT_NULL;
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ast_debug(3, "Interval = 0, shutting thread down\n");
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}
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}
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}
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/*! \brief Observer which is used to update our interval when the global setting changes */
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static struct ast_sorcery_observer expiration_global_observer = {
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.loaded = expiration_global_loaded,
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};
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static int unload_module(void)
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{
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if (check_thread != AST_PTHREADT_NULL) {
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check_interval = 0;
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pthread_kill(check_thread, SIGURG);
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pthread_join(check_thread, NULL);
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check_thread = AST_PTHREADT_NULL;
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}
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ast_sorcery_observer_remove(ast_sip_get_sorcery(), "global", &expiration_global_observer);
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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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ast_sorcery_observer_add(ast_sip_get_sorcery(), "global", &expiration_global_observer);
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ast_sorcery_reload_object(ast_sip_get_sorcery(), "global");
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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, "PJSIP Contact Auto-Expiration",
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.support_level = AST_MODULE_SUPPORT_CORE,
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "OBSOLETE PJSIP Contact Auto-Expiration",
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.support_level = AST_MODULE_SUPPORT_EXTENDED,
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_APP_DEPEND,
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