diff options
Diffstat (limited to 'res/res_pjsip_pubsub.c')
-rw-r--r-- | res/res_pjsip_pubsub.c | 45 |
1 files changed, 41 insertions, 4 deletions
diff --git a/res/res_pjsip_pubsub.c b/res/res_pjsip_pubsub.c index 9e0718f51..d98491495 100644 --- a/res/res_pjsip_pubsub.c +++ b/res/res_pjsip_pubsub.c @@ -560,15 +560,52 @@ static void *publication_resource_alloc(const char *name) return ast_sorcery_generic_alloc(sizeof(struct ast_sip_publication_resource), publication_resource_destroy); } -static void sub_tree_transport_cb(void *data) { +static int sub_tree_subscription_terminate_cb(void *data) +{ struct sip_subscription_tree *sub_tree = data; - ast_debug(3, "Transport destroyed. Removing subscription '%s->%s' prune on restart: %d\n", + if (!sub_tree->evsub) { + /* Something else already terminated the subscription. */ + ao2_ref(sub_tree, -1); + return 0; + } + + ast_debug(3, "Transport destroyed. Removing subscription '%s->%s' prune on boot: %d\n", sub_tree->persistence->endpoint, sub_tree->root->resource, sub_tree->persistence->prune_on_boot); sub_tree->state = SIP_SUB_TREE_TERMINATE_IN_PROGRESS; pjsip_evsub_terminate(sub_tree->evsub, PJ_TRUE); + + ao2_ref(sub_tree, -1); + return 0; +} + +/*! + * \internal + * \brief The reliable transport we used as a subscription contact has shutdown. + * + * \param data What subscription needs to be terminated. + * + * \note Normally executed by the pjsip monitor thread. + * + * \return Nothing + */ +static void sub_tree_transport_cb(void *data) +{ + struct sip_subscription_tree *sub_tree = data; + + /* + * Push off the subscription termination to the serializer to + * avoid deadlock. Another thread could be trying to send a + * message on the subscription that can deadlock with this + * thread. + */ + ao2_ref(sub_tree, +1); + if (ast_sip_push_task(sub_tree->serializer, sub_tree_subscription_terminate_cb, + sub_tree)) { + ao2_ref(sub_tree, -1); + } } /*! \brief Destructor for subscription persistence */ @@ -621,7 +658,7 @@ static void subscription_persistence_update(struct sip_subscription_tree *sub_tr return; } - ast_debug(3, "Updating persistence for '%s->%s' prune on restart: %s\n", + ast_debug(3, "Updating persistence for '%s->%s' prune on boot: %s\n", sub_tree->persistence->endpoint, sub_tree->root->resource, sub_tree->persistence->prune_on_boot ? "yes" : "no"); @@ -645,7 +682,7 @@ static void subscription_persistence_update(struct sip_subscription_tree *sub_tr sub_tree->endpoint, rdata); if (sub_tree->persistence->prune_on_boot) { - ast_debug(3, "adding transport monitor on %s for '%s->%s' prune on restart: %d\n", + ast_debug(3, "adding transport monitor on %s for '%s->%s' prune on boot: %d\n", rdata->tp_info.transport->obj_name, sub_tree->persistence->endpoint, sub_tree->root->resource, sub_tree->persistence->prune_on_boot); |