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Merge changes from topic "pjsip_shutdown"

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* changes:
  res_pjsip_mwi: use an ao2_global object for mwi containers
  res_pjsip/res_pjsip_mwi: use centralized serializer pools
pull/15/head
George Joseph 6 years ago committed by Gerrit Code Review
parent 8fdc826e81 12dbeb69b0
commit d5901a2daf
3 changed files with 190 additions and 237 deletions
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5
include/asterisk/res_pjsip.h
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@ -2980,6 +2980,11 @@ const char *ast_sip_get_host_ip_string(int af);
*/
long ast_sip_threadpool_queue_size(void);
/*!
* \brief Retrieve the SIP threadpool object
*/
struct ast_threadpool *ast_sip_threadpool(void);
/*!
* \brief Retrieve transport state
* \since 13.7.1

83
res/res_pjsip.c
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@ -34,6 +34,7 @@
#include "asterisk/utils.h"
#include "asterisk/astobj2.h"
#include "asterisk/module.h"
#include "asterisk/serializer.h"
#include "asterisk/threadpool.h"
#include "asterisk/taskprocessor.h"
#include "asterisk/uuid.h"
@ -2840,7 +2841,7 @@
#define SERIALIZER_POOL_SIZE 8
/*! Pool of serializers to use if not supplied. */
static struct ast_taskprocessor *serializer_pool[SERIALIZER_POOL_SIZE];
static struct ast_serializer_pool *sip_serializer_pool;
static pjsip_endpoint *ast_pjsip_endpoint;
@ -4626,71 +4627,10 @@ struct ast_taskprocessor *ast_sip_create_serializer(const char *name)
return ast_sip_create_serializer_group(name, NULL);
}
/*!
* \internal
* \brief Shutdown the serializers in the default pool.
* \since 14.0.0
*
* \return Nothing
*/
static void serializer_pool_shutdown(void)
{
int idx;
for (idx = 0; idx < SERIALIZER_POOL_SIZE; ++idx) {
ast_taskprocessor_unreference(serializer_pool[idx]);
serializer_pool[idx] = NULL;
}
}
/*!
* \internal
* \brief Setup the serializers in the default pool.
* \since 14.0.0
*
* \retval 0 on success.
* \retval -1 on error.
*/
static int serializer_pool_setup(void)
{
char tps_name[AST_TASKPROCESSOR_MAX_NAME + 1];
int idx;
for (idx = 0; idx < SERIALIZER_POOL_SIZE; ++idx) {
/* Create name with seq number appended. */
ast_taskprocessor_build_name(tps_name, sizeof(tps_name), "pjsip/default");
serializer_pool[idx] = ast_sip_create_serializer(tps_name);
if (!serializer_pool[idx]) {
serializer_pool_shutdown();
return -1;
}
}
return 0;
}
static struct ast_taskprocessor *serializer_pool_pick(void)
{
int idx;
int pos = 0;
if (!serializer_pool[0]) {
return NULL;
}
for (idx = 1; idx < SERIALIZER_POOL_SIZE; ++idx) {
if (ast_taskprocessor_size(serializer_pool[idx]) < ast_taskprocessor_size(serializer_pool[pos])) {
pos = idx;
}
}
return serializer_pool[pos];
}
int ast_sip_push_task(struct ast_taskprocessor *serializer, int (*sip_task)(void *), void *task_data)
{
if (!serializer) {
serializer = serializer_pool_pick();
serializer = ast_serializer_pool_get(sip_serializer_pool);
}
return ast_taskprocessor_push(serializer, sip_task, task_data);
@ -4771,7 +4711,7 @@ int ast_sip_push_task_wait_serializer(struct ast_taskprocessor *serializer, int
{
if (!serializer) {
/* Caller doesn't care which PJSIP serializer the task executes under. */
serializer = serializer_pool_pick();
serializer = ast_serializer_pool_get(sip_serializer_pool);
if (!serializer) {
/* No serializer picked to execute the task */
return -1;
@ -5133,6 +5073,11 @@ long ast_sip_threadpool_queue_size(void)
return ast_threadpool_queue_size(sip_threadpool);
}
struct ast_threadpool *ast_sip_threadpool(void)
{
return sip_threadpool;
}
#ifdef TEST_FRAMEWORK
AST_TEST_DEFINE(xml_sanitization_end_null)
{
@ -5204,7 +5149,7 @@ static int unload_pjsip(void *data)
* These calls need the pjsip endpoint and serializer to clean up.
* If they're not set, then there's nothing to clean up anyway.
*/
if (ast_pjsip_endpoint && serializer_pool[0]) {
if (ast_pjsip_endpoint && sip_serializer_pool) {
ast_res_pjsip_cleanup_options_handling();
ast_res_pjsip_cleanup_message_filter();
ast_sip_destroy_distributor();
@ -5340,7 +5285,9 @@ static int load_module(void)
goto error;
}
if (serializer_pool_setup()) {
sip_serializer_pool = ast_serializer_pool_create(
"pjsip/default", SERIALIZER_POOL_SIZE, sip_threadpool, -1);
if (!sip_serializer_pool) {
ast_log(LOG_ERROR, "Failed to create SIP serializer pool. Aborting load\n");
goto error;
}
@ -5413,7 +5360,7 @@ error:
/* These functions all check for NULLs and are safe to call at any time */
ast_sip_destroy_scheduler();
serializer_pool_shutdown();
ast_serializer_pool_destroy(sip_serializer_pool);
ast_threadpool_shutdown(sip_threadpool);
return AST_MODULE_LOAD_DECLINE;
@ -5444,7 +5391,7 @@ static int unload_module(void)
*/
ast_sip_push_task_wait_servant(NULL, unload_pjsip, NULL);
ast_sip_destroy_scheduler();
serializer_pool_shutdown();
ast_serializer_pool_destroy(sip_serializer_pool);
ast_threadpool_shutdown(sip_threadpool);
return 0;

339
res/res_pjsip_mwi.c
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@ -36,13 +36,15 @@
#include "asterisk/logger.h"
#include "asterisk/astobj2.h"
#include "asterisk/taskprocessor.h"
#include "asterisk/serializer.h"
#include "asterisk/sorcery.h"
#include "asterisk/stasis.h"
#include "asterisk/mwi.h"
struct mwi_subscription;
static struct ao2_container *unsolicited_mwi;
static struct ao2_container *solicited_mwi;
AO2_GLOBAL_OBJ_STATIC(mwi_unsolicited);
AO2_GLOBAL_OBJ_STATIC(mwi_solicited);
static char *default_voicemail_extension;
@ -57,8 +59,11 @@ static char *default_voicemail_extension;
/*! Number of serializers in pool if one not supplied. */
#define MWI_SERIALIZER_POOL_SIZE 8
/*! Max timeout for all threads to join during an unload. */
#define MAX_UNLOAD_TIMEOUT_TIME 10 /* Seconds */
/*! Pool of serializers to use if not supplied. */
static struct ast_taskprocessor *mwi_serializer_pool[MWI_SERIALIZER_POOL_SIZE];
static struct ast_serializer_pool *mwi_serializer_pool;
static void mwi_subscription_shutdown(struct ast_sip_subscription *sub);
static void mwi_to_ami(struct ast_sip_subscription *sub, struct ast_str **buf);
@ -129,117 +134,6 @@ struct mwi_subscription {
char id[1];
};
/*!
* \internal
* \brief Shutdown the serializers in the mwi pool.
* \since 13.12.0
*
* \return Nothing
*/
static void mwi_serializer_pool_shutdown(void)
{
int idx;
for (idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
ast_taskprocessor_unreference(mwi_serializer_pool[idx]);
mwi_serializer_pool[idx] = NULL;
}
}
/*!
* \internal
* \brief Setup the serializers in the mwi pool.
* \since 13.12.0
*
* \retval 0 on success.
* \retval -1 on error.
*/
static int mwi_serializer_pool_setup(void)
{
char tps_name[AST_TASKPROCESSOR_MAX_NAME + 1];
int idx;
for (idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
/* Create name with seq number appended. */
ast_taskprocessor_build_name(tps_name, sizeof(tps_name), "pjsip/mwi");
mwi_serializer_pool[idx] = ast_sip_create_serializer(tps_name);
if (!mwi_serializer_pool[idx]) {
mwi_serializer_pool_shutdown();
return -1;
}
}
return 0;
}
/*!
* \internal
* \brief Pick a mwi serializer from the pool.
* \since 13.12.0
*
* \retval least queue size task processor.
*/
static struct ast_taskprocessor *get_mwi_serializer(void)
{
int idx;
int pos;
if (!mwi_serializer_pool[0]) {
return NULL;
}
for (pos = idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
if (ast_taskprocessor_size(mwi_serializer_pool[idx]) < ast_taskprocessor_size(mwi_serializer_pool[pos])) {
pos = idx;
}
}
return mwi_serializer_pool[pos];
}
/*!
* \internal
* \brief Set taskprocessor alert levels for the serializers in the mwi pool.
* \since 13.12.0
*
* \retval 0 on success.
* \retval -1 on error.
*/
static int mwi_serializer_set_alert_levels(void)
{
int idx;
long tps_queue_high;
long tps_queue_low;
if (!mwi_serializer_pool[0]) {
return -1;
}
tps_queue_high = ast_sip_get_mwi_tps_queue_high();
if (tps_queue_high <= 0) {
ast_log(AST_LOG_WARNING, "Invalid taskprocessor high water alert trigger level '%ld'\n",
tps_queue_high);
tps_queue_high = AST_TASKPROCESSOR_HIGH_WATER_LEVEL;
}
tps_queue_low = ast_sip_get_mwi_tps_queue_low();
if (tps_queue_low < -1 || tps_queue_high < tps_queue_low) {
ast_log(AST_LOG_WARNING, "Invalid taskprocessor low water clear alert level '%ld'\n",
tps_queue_low);
tps_queue_low = -1;
}
for (idx = 0; idx < MWI_SERIALIZER_POOL_SIZE; ++idx) {
if (ast_taskprocessor_alert_set_levels(mwi_serializer_pool[idx], tps_queue_low, tps_queue_high)) {
ast_log(AST_LOG_WARNING, "Failed to set alert levels for MWI serializer pool #%d.\n",
idx);
}
}
return 0;
}
static void mwi_stasis_cb(void *userdata, struct stasis_subscription *sub,
struct stasis_message *msg);
@ -688,13 +582,15 @@ static int unsubscribe_stasis(void *obj, void *arg, int flags)
}
static int create_unsolicited_mwi_subscriptions(struct ast_sip_endpoint *endpoint,
int recreate, int send_now);
int recreate, int send_now, struct ao2_container *unsolicited_mwi, struct ao2_container *solicited_mwi);
static void mwi_subscription_shutdown(struct ast_sip_subscription *sub)
{
struct mwi_subscription *mwi_sub;
struct ast_datastore *mwi_datastore;
struct ast_sip_endpoint *endpoint = NULL;
struct ao2_container *unsolicited_mwi;
struct ao2_container *solicited_mwi;
mwi_datastore = ast_sip_subscription_get_datastore(sub, MWI_DATASTORE);
if (!mwi_datastore) {
@ -708,18 +604,25 @@ static void mwi_subscription_shutdown(struct ast_sip_subscription *sub)
endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", mwi_sub->id);
ao2_ref(mwi_datastore, -1);
ao2_unlink(solicited_mwi, mwi_sub);
solicited_mwi = ao2_global_obj_ref(mwi_solicited);
if (solicited_mwi) {
ao2_unlink(solicited_mwi, mwi_sub);
}
/*
* When a solicited subscription is removed it's possible an unsolicited one
* needs to be [re-]created. Attempt to establish unsolicited MWI.
*/
unsolicited_mwi = ao2_global_obj_ref(mwi_unsolicited);
if (unsolicited_mwi && endpoint) {
ao2_lock(unsolicited_mwi);
create_unsolicited_mwi_subscriptions(endpoint, 1, 1);
create_unsolicited_mwi_subscriptions(endpoint, 1, 1, unsolicited_mwi, solicited_mwi);
ao2_unlock(unsolicited_mwi);
ao2_ref(unsolicited_mwi, -1);
}
ao2_cleanup(solicited_mwi);
ao2_cleanup(endpoint);
}
@ -785,6 +688,10 @@ static int has_mwi_subscription(struct ao2_container *container,
*mwi_sub = NULL;
*mwi_stasis = NULL;
if (!container) {
return 0;
}
mwi_subs = ao2_find(container, ast_sorcery_object_get_id(endpoint),
OBJ_SEARCH_KEY | OBJ_MULTIPLE | OBJ_NOLOCK);
if (!mwi_subs) {
@ -814,11 +721,13 @@ static int has_mwi_subscription(struct ao2_container *container,
*
* \param endpoint The endpoint
* \param mailbox The mailbox
* \param unsolicited_mwi A container of unsolicited mwi objects
*
* \retval 1 if a solicited subscription is allowed for the endpoint/mailbox
* 0 otherwise
*/
static int allow_and_or_replace_unsolicited(struct ast_sip_endpoint *endpoint, const char *mailbox)
static int allow_and_or_replace_unsolicited(struct ast_sip_endpoint *endpoint, const char *mailbox,
struct ao2_container *unsolicited_mwi)
{
struct mwi_subscription *mwi_sub;
struct mwi_stasis_subscription *mwi_stasis;
@ -865,11 +774,14 @@ static int send_notify(void *obj, void *arg, int flags);
*
* \param endpoint The endpoint
* \param mailbox The mailbox
* \param unsolicited_mwi A container of unsolicited mwi objects
* \param solicited_mwi A container of solicited mwi objects
*
* \retval 1 if an unsolicited subscription is allowed for the endpoint/mailbox
* 0 otherwise
*/
static int is_unsolicited_allowed(struct ast_sip_endpoint *endpoint, const char *mailbox)
static int is_unsolicited_allowed(struct ast_sip_endpoint *endpoint, const char *mailbox,
struct ao2_container *unsolicited_mwi, struct ao2_container *solicited_mwi)
{
struct mwi_subscription *mwi_sub;
struct mwi_stasis_subscription *mwi_stasis;
@ -935,28 +847,41 @@ static int mwi_validate_for_aor(void *obj, void *arg, int flags)
struct ast_sip_endpoint *endpoint = arg;
char *mailboxes;
char *mailbox;
struct ao2_container *unsolicited_mwi;
if (ast_strlen_zero(aor->mailboxes)) {
return 0;
}
/* A reload could be taking place so lock while checking if allowed */
ao2_lock(unsolicited_mwi);
unsolicited_mwi = ao2_global_obj_ref(mwi_unsolicited);
if (unsolicited_mwi) {
ao2_lock(unsolicited_mwi);
}
mailboxes = ast_strdupa(aor->mailboxes);
while ((mailbox = ast_strip(strsep(&mailboxes, ",")))) {
if (ast_strlen_zero(mailbox)) {
continue;
}
if (!allow_and_or_replace_unsolicited(endpoint, mailbox)) {
if (!allow_and_or_replace_unsolicited(endpoint, mailbox, unsolicited_mwi)) {
ast_debug(1, "Endpoint '%s' already configured for unsolicited MWI for mailbox '%s'. "
"Denying MWI subscription to %s\n", ast_sorcery_object_get_id(endpoint), mailbox,
ast_sorcery_object_get_id(aor));
ao2_unlock(unsolicited_mwi);
if (unsolicited_mwi) {
ao2_unlock(unsolicited_mwi);
ao2_ref(unsolicited_mwi, -1);
}
return -1;
}
}
ao2_unlock(unsolicited_mwi);
if (unsolicited_mwi) {
ao2_unlock(unsolicited_mwi);
ao2_ref(unsolicited_mwi, -1);
}
return 0;
}
@ -1082,6 +1007,7 @@ static int mwi_subscription_established(struct ast_sip_subscription *sip_sub)
const char *resource = ast_sip_subscription_get_resource_name(sip_sub);
struct mwi_subscription *sub;
struct ast_sip_endpoint *endpoint = ast_sip_subscription_get_endpoint(sip_sub);
struct ao2_container *solicited_mwi;
/* no aor in uri? subscribe to all on endpoint */
if (ast_strlen_zero(resource)) {
@ -1102,7 +1028,12 @@ static int mwi_subscription_established(struct ast_sip_subscription *sip_sub)
ast_sip_subscription_remove_datastore(sip_sub, MWI_DATASTORE);
}
ao2_link(solicited_mwi, sub);
solicited_mwi = ao2_global_obj_ref(mwi_solicited);
if (solicited_mwi) {
ao2_link(solicited_mwi, sub);
ao2_ref(solicited_mwi, -1);
}
ao2_cleanup(sub);
ao2_cleanup(endpoint);
return 0;
@ -1213,7 +1144,7 @@ static int send_notify(void *obj, void *arg, int flags)
struct mwi_subscription *mwi_sub = obj;
struct ast_taskprocessor *serializer = mwi_sub->is_solicited
? ast_sip_subscription_get_serializer(mwi_sub->sip_sub)
: get_mwi_serializer();
: ast_serializer_pool_get(mwi_serializer_pool);
if (ast_sip_push_task(serializer, serialized_notify, ao2_bump(mwi_sub))) {
ao2_ref(mwi_sub, -1);
@ -1228,7 +1159,8 @@ static void mwi_stasis_cb(void *userdata, struct stasis_subscription *sub,
struct mwi_subscription *mwi_sub = userdata;
if (stasis_subscription_final_message(sub, msg)) {
if (ast_sip_push_task(NULL, serialized_cleanup, ao2_bump(mwi_sub))) {
if (ast_sip_push_task(ast_serializer_pool_get(mwi_serializer_pool),
serialized_cleanup, ao2_bump(mwi_sub))) {
ao2_ref(mwi_sub, -1);
}
return;
@ -1248,11 +1180,13 @@ static void mwi_stasis_cb(void *userdata, struct stasis_subscription *sub,
* \param endpoint An endpoint object
* \param recreate Whether or not unsolicited subscriptions are potentially being recreated
* \param send_now Whether or not to send a notify once the subscription is created
* \param unsolicited_mwi A container of unsolicited mwi objects
* \param solicited_mwi A container of solicited mwi objects
*
* \retval 0
*/
static int create_unsolicited_mwi_subscriptions(struct ast_sip_endpoint *endpoint,
int recreate, int send_now)
int recreate, int send_now, struct ao2_container *unsolicited_mwi, struct ao2_container *solicited_mwi)
{
RAII_VAR(struct mwi_subscription *, aggregate_sub, NULL, ao2_cleanup);
char *mailboxes;
@ -1287,14 +1221,16 @@ static int create_unsolicited_mwi_subscriptions(struct ast_sip_endpoint *endpoin
}
/* Lock solicited so we don't potentially add to both containers */
ao2_lock(solicited_mwi);
if (solicited_mwi) {
ao2_lock(solicited_mwi);
}
mailboxes = ast_strdupa(endpoint->subscription.mwi.mailboxes);
while ((mailbox = ast_strip(strsep(&mailboxes, ",")))) {
struct mwi_subscription *sub;
struct mwi_stasis_subscription *mwi_stasis_sub;
if (!is_unsolicited_allowed(endpoint, mailbox)) {
if (!is_unsolicited_allowed(endpoint, mailbox, unsolicited_mwi, solicited_mwi)) {
continue;
}
@ -1334,13 +1270,16 @@ static int create_unsolicited_mwi_subscriptions(struct ast_sip_endpoint *endpoin
}
}
ao2_unlock(solicited_mwi);
if (solicited_mwi) {
ao2_unlock(solicited_mwi);
}
return 0;
}
static int create_mwi_subscriptions_for_endpoint(void *obj, void *arg, int flags)
static int create_mwi_subscriptions_for_endpoint(void *obj, void *arg, void *data, int flags)
{
return create_unsolicited_mwi_subscriptions(obj, 0, 0);
return create_unsolicited_mwi_subscriptions(obj, 0, 0, arg, data);
}
static int unsubscribe(void *obj, void *arg, int flags)
@ -1354,9 +1293,16 @@ static int unsubscribe(void *obj, void *arg, int flags)
static void create_mwi_subscriptions(void)
{
struct ao2_container *unsolicited_mwi;
struct ao2_container *solicited_mwi;
struct ao2_container *endpoints;
struct ast_variable *var;
unsolicited_mwi = ao2_global_obj_ref(mwi_unsolicited);
if (!unsolicited_mwi) {
return;
}
var = ast_variable_new("mailboxes !=", "", "");
endpoints = ast_sorcery_retrieve_by_fields(ast_sip_get_sorcery(), "endpoint",
@ -1364,9 +1310,12 @@ static void create_mwi_subscriptions(void)
ast_variables_destroy(var);
if (!endpoints) {
ao2_ref(unsolicited_mwi, -1);
return;
}
solicited_mwi = ao2_global_obj_ref(mwi_solicited);
/* We remove all the old stasis subscriptions first before applying the new configuration. This
* prevents a situation where there might be multiple overlapping stasis subscriptions for an
* endpoint for mailboxes. Though there may be mailbox changes during the gap between unsubscribing
@ -1375,10 +1324,12 @@ static void create_mwi_subscriptions(void)
*/
ao2_lock(unsolicited_mwi);
ao2_callback(unsolicited_mwi, OBJ_NOLOCK | OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, unsubscribe, NULL);
ao2_callback(endpoints, OBJ_NODATA, create_mwi_subscriptions_for_endpoint, NULL);
ao2_callback_data(endpoints, OBJ_NODATA, create_mwi_subscriptions_for_endpoint, unsolicited_mwi, solicited_mwi);
ao2_unlock(unsolicited_mwi);
ao2_ref(endpoints, -1);
ao2_cleanup(solicited_mwi);
ao2_ref(unsolicited_mwi, -1);
}
/*! \brief Function called to send MWI NOTIFY on any unsolicited mailboxes relating to this AOR */
@ -1391,7 +1342,8 @@ static int send_contact_notify(void *obj, void *arg, int flags)
return 0;
}
if (ast_sip_push_task(get_mwi_serializer(), serialized_notify, ao2_bump(mwi_sub))) {
if (ast_sip_push_task(ast_serializer_pool_get(mwi_serializer_pool),
serialized_notify, ao2_bump(mwi_sub))) {
ao2_ref(mwi_sub, -1);
}
@ -1404,6 +1356,8 @@ static void mwi_contact_changed(const struct ast_sip_contact *contact)
char *id = ast_strdupa(ast_sorcery_object_get_id(contact));
char *aor = NULL;
struct ast_sip_endpoint *endpoint = NULL;
struct ao2_container *unsolicited_mwi;
struct ao2_container *solicited_mwi;
if (contact->endpoint) {
endpoint = ao2_bump(contact->endpoint);
@ -1418,10 +1372,20 @@ static void mwi_contact_changed(const struct ast_sip_contact *contact)
return;
}
unsolicited_mwi = ao2_global_obj_ref(mwi_unsolicited);
if (!unsolicited_mwi) {
ao2_cleanup(endpoint);
return;
}
solicited_mwi = ao2_global_obj_ref(mwi_solicited);
ao2_lock(unsolicited_mwi);
create_mwi_subscriptions_for_endpoint(endpoint, NULL, 0);
create_unsolicited_mwi_subscriptions(endpoint, 0, 0, unsolicited_mwi, solicited_mwi);
ao2_unlock(unsolicited_mwi);
ao2_cleanup(endpoint);
ao2_cleanup(solicited_mwi);
ao2_ref(unsolicited_mwi, -1);
aor = strsep(&id, ";@");
ao2_callback(unsolicited_mwi, OBJ_NODATA, send_contact_notify, aor);
@ -1447,6 +1411,7 @@ static void mwi_contact_deleted(const void *object)
struct mwi_subscription *mwi_sub;
struct ast_sip_endpoint *endpoint = NULL;
struct ast_sip_contact *found_contact;
struct ao2_container *unsolicited_mwi;
if (contact->endpoint) {
endpoint = ao2_bump(contact->endpoint);
@ -1469,6 +1434,11 @@ static void mwi_contact_deleted(const void *object)
return;
}
unsolicited_mwi = ao2_global_obj_ref(mwi_unsolicited);
if (!unsolicited_mwi) {
return;
}
ao2_lock(unsolicited_mwi);
mwi_subs = ao2_find(unsolicited_mwi, contact->endpoint_name,
OBJ_SEARCH_KEY | OBJ_MULTIPLE | OBJ_NOLOCK | OBJ_UNLINK);
@ -1479,6 +1449,7 @@ static void mwi_contact_deleted(const void *object)
ao2_iterator_destroy(mwi_subs);
}
ao2_unlock(unsolicited_mwi);
ao2_ref(unsolicited_mwi, -1);
}
/*! \brief Observer for contacts so unsolicited MWI is sent when a contact changes */
@ -1491,7 +1462,12 @@ static const struct ast_sorcery_observer mwi_contact_observer = {
/*! \brief Task invoked to send initial MWI NOTIFY for unsolicited */
static int send_initial_notify_all(void *obj)
{
ao2_callback(unsolicited_mwi, OBJ_NODATA, send_notify, NULL);
struct ao2_container *unsolicited_mwi = ao2_global_obj_ref(mwi_unsolicited);
if (unsolicited_mwi) {
ao2_callback(unsolicited_mwi, OBJ_NODATA, send_notify, NULL);
ao2_ref(unsolicited_mwi, -1);
}
return 0;
}
@ -1513,7 +1489,8 @@ static void mwi_startup_event_cb(void *data, struct stasis_subscription *sub, st
return;
}
ast_sip_push_task(NULL, send_initial_notify_all, NULL);
ast_sip_push_task(ast_serializer_pool_get(mwi_serializer_pool),
send_initial_notify_all, NULL);
stasis_unsubscribe(sub);
}
@ -1522,7 +1499,8 @@ static void global_loaded(const char *object_type)
{
ast_free(default_voicemail_extension);
default_voicemail_extension = ast_sip_get_default_voicemail_extension();
mwi_serializer_set_alert_levels();
ast_serializer_pool_set_alerts(mwi_serializer_pool,
ast_sip_get_mwi_tps_queue_high(), ast_sip_get_mwi_tps_queue_low());
}
static struct ast_sorcery_observer global_observer = {
@ -1537,32 +1515,65 @@ static int reload(void)
return 0;
}
static int unload_module(void)
{
struct ao2_container *unsolicited_mwi;
ast_sorcery_observer_remove(ast_sip_get_sorcery(), "global", &global_observer);
ast_sorcery_observer_remove(ast_sip_get_sorcery(), "contact", &mwi_contact_observer);
unsolicited_mwi = ao2_global_obj_replace(mwi_unsolicited, NULL);
if (unsolicited_mwi) {
ao2_callback(unsolicited_mwi, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, unsubscribe, NULL);
ao2_ref(unsolicited_mwi, -1);
}
ao2_global_obj_release(mwi_solicited);
if (ast_serializer_pool_destroy(mwi_serializer_pool)) {
ast_log(LOG_WARNING, "Unload incomplete. Try again later\n");
return -1;
}
mwi_serializer_pool = NULL;
ast_sip_unregister_subscription_handler(&mwi_handler);
ast_free(default_voicemail_extension);
default_voicemail_extension = NULL;
return 0;
}
static int load_module(void)
{
struct ao2_container *mwi_container;
if (ast_sip_register_subscription_handler(&mwi_handler)) {
return AST_MODULE_LOAD_DECLINE;
}
if (mwi_serializer_pool_setup()) {
mwi_serializer_pool = ast_serializer_pool_create("pjsip/mwi",
MWI_SERIALIZER_POOL_SIZE, ast_sip_threadpool(), MAX_UNLOAD_TIMEOUT_TIME);
if (!mwi_serializer_pool) {
ast_log(AST_LOG_WARNING, "Failed to create MWI serializer pool. The default SIP pool will be used for MWI\n");
}
solicited_mwi = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MWI_BUCKETS,
mwi_container = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MWI_BUCKETS,
mwi_sub_hash, NULL, mwi_sub_cmp);
if (!solicited_mwi) {
mwi_serializer_pool_shutdown();
ast_sip_unregister_subscription_handler(&mwi_handler);
if (!mwi_container) {
unload_module();
return AST_MODULE_LOAD_DECLINE;
}
ao2_global_obj_replace_unref(mwi_solicited, mwi_container);
ao2_ref(mwi_container, -1);
unsolicited_mwi = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MWI_BUCKETS,
mwi_container = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MWI_BUCKETS,
mwi_sub_hash, NULL, mwi_sub_cmp);
if (!unsolicited_mwi) {
mwi_serializer_pool_shutdown();
ast_sip_unregister_subscription_handler(&mwi_handler);
ao2_ref(solicited_mwi, -1);
if (!mwi_container) {
unload_module();
return AST_MODULE_LOAD_DECLINE;
}
ao2_global_obj_replace_unref(mwi_unsolicited, mwi_container);
ao2_ref(mwi_container, -1);
ast_sorcery_observer_add(ast_sip_get_sorcery(), "contact", &mwi_contact_observer);
ast_sorcery_observer_add(ast_sip_get_sorcery(), "global", &global_observer);
@ -1571,7 +1582,8 @@ static int load_module(void)
if (!ast_sip_get_mwi_disable_initial_unsolicited()) {
create_mwi_subscriptions();
if (ast_test_flag(&ast_options, AST_OPT_FLAG_FULLY_BOOTED)) {
ast_sip_push_task(NULL, send_initial_notify_all, NULL);
ast_sip_push_task(ast_serializer_pool_get(mwi_serializer_pool),
send_initial_notify_all, NULL);
} else {
struct stasis_subscription *sub;
@ -1581,27 +1593,16 @@ static int load_module(void)
}
}
return AST_MODULE_LOAD_SUCCESS;
}
static int unload_module(void)
{
ast_sorcery_observer_remove(ast_sip_get_sorcery(), "global", &global_observer);
ast_sorcery_observer_remove(ast_sip_get_sorcery(), "contact", &mwi_contact_observer);
ao2_callback(unsolicited_mwi, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, unsubscribe, NULL);
ao2_ref(unsolicited_mwi, -1);
unsolicited_mwi = NULL;
ao2_cleanup(solicited_mwi);
mwi_serializer_pool_shutdown();
ast_sip_unregister_subscription_handler(&mwi_handler);
if (!mwi_serializer_pool) {
/*
* If the mwi serializer pool was unable to be established then the module will
* use the default serializer pool. If this happens prevent manual unloading
* since there would now exist the potential for a crash on unload.
*/
ast_module_shutdown_ref(ast_module_info->self);
}
ast_free(default_voicemail_extension);
default_voicemail_extension = NULL;
return 0;
return AST_MODULE_LOAD_SUCCESS;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP MWI resource",

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