mirror of https://github.com/asterisk/asterisk
This reverts commit cfeb8a59eb
.
The fixes in question cause assert failures when pjproject
asserts are enabled. Reverting in 13 until a solution is
found for all branches.
Change-Id: Iae5bd340e0543613185fecb63f9c86fa985fe664
13.27
parent
cfeb8a59eb
commit
c41e3184e3
@ -1,372 +0,0 @@
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From 27a076f2f6c6007c0ba41d2868a803c4d841e815 Mon Sep 17 00:00:00 2001
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From: nanang <nanang@localhost>
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Date: Tue, 23 Apr 2019 08:42:45 +0000
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Subject: [PATCH] Fixed #2191: - Stricter double timer entry scheduling
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prevention. - Integrate group lock in SIP transport, e.g: for add/dec ref,
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for timer scheduling.
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---
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pjlib/include/pj/timer.h | 2 +-
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pjlib/src/pj/timer.c | 11 +++++++-
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pjsip/include/pjsip/sip_endpoint.h | 39 +++++++++++++++++++++++++++++
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pjsip/include/pjsip/sip_transport.h | 2 ++
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pjsip/src/pjsip/sip_endpoint.c | 36 ++++++++++++++++++++++++++
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pjsip/src/pjsip/sip_transport.c | 36 +++++++++++++++++++++-----
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pjsip/src/pjsip/sip_transport_tcp.c | 10 +++++---
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pjsip/src/pjsip/sip_transport_tls.c | 14 ++++++++---
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pjsip/src/pjsip/sip_transport_udp.c | 2 ++
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9 files changed, 137 insertions(+), 15 deletions(-)
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diff --git a/pjlib/include/pj/timer.h b/pjlib/include/pj/timer.h
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index df6155a81..14857b872 100644
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--- a/pjlib/include/pj/timer.h
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+++ b/pjlib/include/pj/timer.h
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@@ -252,9 +252,9 @@ PJ_DECL(pj_status_t) pj_timer_heap_schedule( pj_timer_heap_t *ht,
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*
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* @param ht The timer heap.
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* @param entry The entry to be registered.
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+ * @param delay The interval to expire.
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* @param id_val The value to be set to the "id" field of the timer entry
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* once the timer is scheduled.
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- * @param delay The interval to expire.
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* @param grp_lock The group lock.
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*
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* @return PJ_SUCCESS, or the appropriate error code.
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diff --git a/pjlib/src/pj/timer.c b/pjlib/src/pj/timer.c
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index f0a2cbbc9..cbdd9791f 100644
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--- a/pjlib/src/pj/timer.c
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+++ b/pjlib/src/pj/timer.c
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@@ -502,7 +502,7 @@ static pj_status_t schedule_w_grp_lock(pj_timer_heap_t *ht,
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PJ_ASSERT_RETURN(entry->cb != NULL, PJ_EINVAL);
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/* Prevent same entry from being scheduled more than once */
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- PJ_ASSERT_RETURN(entry->_timer_id < 1, PJ_EINVALIDOP);
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+ //PJ_ASSERT_RETURN(entry->_timer_id < 1, PJ_EINVALIDOP);
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#if PJ_TIMER_DEBUG
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entry->src_file = src_file;
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@@ -512,6 +512,15 @@ static pj_status_t schedule_w_grp_lock(pj_timer_heap_t *ht,
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PJ_TIME_VAL_ADD(expires, *delay);
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lock_timer_heap(ht);
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+
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+ /* Prevent same entry from being scheduled more than once */
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+ if (pj_timer_entry_running(entry)) {
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+ unlock_timer_heap(ht);
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+ PJ_LOG(3,(THIS_FILE, "Bug! Rescheduling outstanding entry (%p)",
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+ entry));
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+ return PJ_EINVALIDOP;
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+ }
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+
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status = schedule_entry(ht, entry, &expires);
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if (status == PJ_SUCCESS) {
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if (set_id)
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diff --git a/pjsip/include/pjsip/sip_endpoint.h b/pjsip/include/pjsip/sip_endpoint.h
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index 99683fbe1..ee967f8d9 100644
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--- a/pjsip/include/pjsip/sip_endpoint.h
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+++ b/pjsip/include/pjsip/sip_endpoint.h
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@@ -138,6 +138,7 @@ PJ_DECL(pj_status_t) pjsip_endpt_handle_events( pjsip_endpoint *endpt,
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PJ_DECL(pj_status_t) pjsip_endpt_handle_events2(pjsip_endpoint *endpt,
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const pj_time_val *max_timeout,
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unsigned *count);
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+
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/**
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* Schedule timer to endpoint's timer heap. Application must poll the endpoint
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* periodically (by calling #pjsip_endpt_handle_events) to ensure that the
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@@ -166,6 +167,44 @@ PJ_DECL(pj_status_t) pjsip_endpt_schedule_timer( pjsip_endpoint *endpt,
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const pj_time_val *delay );
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#endif
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+/**
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+ * Schedule timer to endpoint's timer heap with group lock. Application must
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+ * poll the endpoint periodically (by calling #pjsip_endpt_handle_events) to
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+ * ensure that the timer events are handled in timely manner. When the
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+ * timeout for the timer has elapsed, the callback specified in the entry
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+ * argument will be called. This function, like all other endpoint functions,
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+ * is thread safe.
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+ *
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+ * @param endpt The endpoint.
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+ * @param entry The timer entry.
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+ * @param delay The relative delay of the timer.
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+ * @param id_val The value to be set to the "id" field of the timer entry
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+ * once the timer is scheduled.
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+ * @param grp_lock The group lock.
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+ * @return PJ_OK (zero) if successfull.
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+ */
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+#if PJ_TIMER_DEBUG
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+#define pjsip_endpt_schedule_timer_w_grp_lock(ept,ent,d,id,gl) \
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+ pjsip_endpt_schedule_timer_w_grp_lock_dbg(ept,ent,d,id,gl,\
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+ __FILE__, __LINE__)
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+
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+PJ_DECL(pj_status_t) pjsip_endpt_schedule_timer_w_grp_lock_dbg(
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+ pjsip_endpoint *endpt,
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+ pj_timer_entry *entry,
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+ const pj_time_val *delay,
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+ int id_val,
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+ pj_grp_lock_t *grp_lock,
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+ const char *src_file,
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+ int src_line);
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+#else
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+PJ_DECL(pj_status_t) pjsip_endpt_schedule_timer_w_grp_lock(
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+ pjsip_endpoint *endpt,
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+ pj_timer_entry *entry,
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+ const pj_time_val *delay,
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+ int id_val,
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+ pj_grp_lock_t *grp_lock );
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+#endif
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+
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/**
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* Cancel the previously registered timer.
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* This function, like all other endpoint functions, is thread safe.
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diff --git a/pjsip/include/pjsip/sip_transport.h b/pjsip/include/pjsip/sip_transport.h
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index addc8d521..d1ff3618b 100644
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--- a/pjsip/include/pjsip/sip_transport.h
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+++ b/pjsip/include/pjsip/sip_transport.h
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@@ -810,6 +810,8 @@ struct pjsip_transport
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pj_pool_t *pool; /**< Pool used by transport. */
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pj_atomic_t *ref_cnt; /**< Reference counter. */
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pj_lock_t *lock; /**< Lock object. */
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+ pj_grp_lock_t *grp_lock; /**< Group lock for sync with
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+ ioqueue and timer. */
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pj_bool_t tracing; /**< Tracing enabled? */
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pj_bool_t is_shutdown; /**< Being shutdown? */
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pj_bool_t is_destroying; /**< Destroy in progress? */
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diff --git a/pjsip/src/pjsip/sip_endpoint.c b/pjsip/src/pjsip/sip_endpoint.c
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index d810781d5..71bc761c2 100644
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--- a/pjsip/src/pjsip/sip_endpoint.c
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+++ b/pjsip/src/pjsip/sip_endpoint.c
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@@ -802,6 +802,42 @@ PJ_DEF(pj_status_t) pjsip_endpt_schedule_timer( pjsip_endpoint *endpt,
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}
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#endif
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+/*
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+ * Schedule timer with group lock.
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+ */
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+#if PJ_TIMER_DEBUG
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+PJ_DEF(pj_status_t) pjsip_endpt_schedule_timer_w_grp_lock_dbg(
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+ pjsip_endpoint *endpt,
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+ pj_timer_entry *entry,
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+ const pj_time_val *delay,
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+ int id_val,
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+ pj_grp_lock_t *grp_lock,
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+ const char *src_file,
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+ int src_line)
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+{
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+ PJ_LOG(6, (THIS_FILE, "pjsip_endpt_schedule_timer_w_grp_lock"
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+ "(entry=%p, delay=%u.%u, grp_lock=%p)",
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+ entry, delay->sec, delay->msec, grp_lock));
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+ return pj_timer_heap_schedule_w_grp_lock_dbg(endpt->timer_heap, entry,
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+ delay, id_val, grp_lock,
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+ src_file, src_line);
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+}
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+#else
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+PJ_DEF(pj_status_t) pjsip_endpt_schedule_timer_w_grp_lock(
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+ pjsip_endpoint *endpt,
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+ pj_timer_entry *entry,
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+ const pj_time_val *delay,
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+ int id_val,
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+ pj_grp_lock_t *grp_lock )
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+{
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+ PJ_LOG(6, (THIS_FILE, "pjsip_endpt_schedule_timer_w_grp_lock"
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+ "(entry=%p, delay=%u.%u, grp_lock=%p)",
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+ entry, delay->sec, delay->msec, grp_lock));
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+ return pj_timer_heap_schedule_w_grp_lock( endpt->timer_heap, entry,
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+ delay, id_val, grp_lock );
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+}
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+#endif
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+
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/*
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* Cancel the previously registered timer.
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*/
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diff --git a/pjsip/src/pjsip/sip_transport.c b/pjsip/src/pjsip/sip_transport.c
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index 67e235a39..529604399 100644
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--- a/pjsip/src/pjsip/sip_transport.c
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+++ b/pjsip/src/pjsip/sip_transport.c
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@@ -1012,6 +1012,9 @@ static void transport_idle_callback(pj_timer_heap_t *timer_heap,
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PJ_UNUSED_ARG(timer_heap);
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+ if (entry->id == PJ_FALSE)
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+ return;
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+
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entry->id = PJ_FALSE;
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pjsip_transport_destroy(tp);
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}
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@@ -1049,6 +1052,10 @@ PJ_DEF(pj_status_t) pjsip_transport_add_ref( pjsip_transport *tp )
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PJ_ASSERT_RETURN(tp != NULL, PJ_EINVAL);
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+ /* Add ref transport group lock, if any */
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+ if (tp->grp_lock)
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+ pj_grp_lock_add_ref(tp->grp_lock);
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+
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/* Cache some vars for checking transport validity later */
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tpmgr = tp->tpmgr;
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key_len = sizeof(tp->key.type) + tp->addr_len;
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@@ -1063,8 +1070,8 @@ PJ_DEF(pj_status_t) pjsip_transport_add_ref( pjsip_transport *tp )
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pj_atomic_get(tp->ref_cnt) == 1)
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{
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if (tp->idle_timer.id != PJ_FALSE) {
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- pjsip_endpt_cancel_timer(tp->tpmgr->endpt, &tp->idle_timer);
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tp->idle_timer.id = PJ_FALSE;
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+ pjsip_endpt_cancel_timer(tp->tpmgr->endpt, &tp->idle_timer);
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}
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}
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pj_lock_release(tpmgr->lock);
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@@ -1114,14 +1121,23 @@ PJ_DEF(pj_status_t) pjsip_transport_dec_ref( pjsip_transport *tp )
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delay.msec = 0;
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}
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- pj_assert(tp->idle_timer.id == 0);
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- tp->idle_timer.id = PJ_TRUE;
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- pjsip_endpt_schedule_timer(tp->tpmgr->endpt, &tp->idle_timer,
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- &delay);
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+ /* Avoid double timer entry scheduling */
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+ if (pj_timer_entry_running(&tp->idle_timer))
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+ pjsip_endpt_cancel_timer(tp->tpmgr->endpt, &tp->idle_timer);
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+
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+ pjsip_endpt_schedule_timer_w_grp_lock(tp->tpmgr->endpt,
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+ &tp->idle_timer,
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+ &delay,
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+ PJ_TRUE,
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+ tp->grp_lock);
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}
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pj_lock_release(tpmgr->lock);
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}
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+ /* Dec ref transport group lock, if any */
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+ if (tp->grp_lock)
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+ pj_grp_lock_dec_ref(tp->grp_lock);
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+
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return PJ_SUCCESS;
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}
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@@ -1168,6 +1184,10 @@ PJ_DEF(pj_status_t) pjsip_transport_register( pjsip_tpmgr *mgr,
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/* Register new entry */
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pj_hash_set(tp->pool, mgr->table, &tp->key, key_len, hval, tp);
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+ /* Add ref transport group lock, if any */
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+ if (tp->grp_lock)
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+ pj_grp_lock_add_ref(tp->grp_lock);
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+
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pj_lock_release(mgr->lock);
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TRACE_((THIS_FILE,"Transport %s registered: type=%s, remote=%s:%d",
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@@ -1199,8 +1219,8 @@ static pj_status_t destroy_transport( pjsip_tpmgr *mgr,
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*/
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//pj_assert(tp->idle_timer.id == PJ_FALSE);
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if (tp->idle_timer.id != PJ_FALSE) {
|
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- pjsip_endpt_cancel_timer(mgr->endpt, &tp->idle_timer);
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tp->idle_timer.id = PJ_FALSE;
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+ pjsip_endpt_cancel_timer(mgr->endpt, &tp->idle_timer);
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}
|
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|
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/*
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@@ -1226,6 +1246,10 @@ static pj_status_t destroy_transport( pjsip_tpmgr *mgr,
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pj_lock_release(mgr->lock);
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pj_lock_release(tp->lock);
|
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+ /* Dec ref transport group lock, if any */
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+ if (tp->grp_lock)
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+ pj_grp_lock_dec_ref(tp->grp_lock);
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+
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/* Destroy. */
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return tp->destroy(tp);
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}
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diff --git a/pjsip/src/pjsip/sip_transport_tcp.c b/pjsip/src/pjsip/sip_transport_tcp.c
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index fe327459e..374bf461b 100644
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--- a/pjsip/src/pjsip/sip_transport_tcp.c
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+++ b/pjsip/src/pjsip/sip_transport_tcp.c
|
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@@ -692,6 +692,8 @@ static pj_status_t tcp_create( struct tcp_listener *listener,
|
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pj_grp_lock_add_ref(tcp->grp_lock);
|
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pj_grp_lock_add_handler(tcp->grp_lock, pool, tcp, &tcp_on_destroy);
|
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+ tcp->base.grp_lock = tcp->grp_lock;
|
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+
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/* Create active socket */
|
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pj_activesock_cfg_default(&asock_cfg);
|
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asock_cfg.async_cnt = 1;
|
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@@ -746,7 +748,11 @@ static pj_status_t tcp_create( struct tcp_listener *listener,
|
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return PJ_SUCCESS;
|
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|
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on_error:
|
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- tcp_destroy(&tcp->base, status);
|
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+ if (tcp->grp_lock && pj_grp_lock_get_ref(tcp->grp_lock))
|
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+ tcp_destroy(&tcp->base, status);
|
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+ else
|
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+ tcp_on_destroy(tcp);
|
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+
|
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return status;
|
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}
|
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|
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@@ -867,8 +873,6 @@ static pj_status_t tcp_destroy(pjsip_transport *transport,
|
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tcp->grp_lock = NULL;
|
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pj_grp_lock_dec_ref(grp_lock);
|
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/* Transport may have been deleted at this point */
|
||||
- } else {
|
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- tcp_on_destroy(tcp);
|
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}
|
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|
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return PJ_SUCCESS;
|
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diff --git a/pjsip/src/pjsip/sip_transport_tls.c b/pjsip/src/pjsip/sip_transport_tls.c
|
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index d3afae5e9..dd3a4d639 100644
|
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--- a/pjsip/src/pjsip/sip_transport_tls.c
|
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+++ b/pjsip/src/pjsip/sip_transport_tls.c
|
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@@ -165,6 +165,10 @@ static pj_status_t tls_create(struct tls_listener *listener,
|
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struct tls_transport **p_tls);
|
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|
||||
|
||||
+/* Clean up TLS resources */
|
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+static void tls_on_destroy(void *arg);
|
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+
|
||||
+
|
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static void tls_perror(const char *sender, const char *title,
|
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pj_status_t status)
|
||||
{
|
||||
@@ -893,7 +897,11 @@ static pj_status_t tls_create( struct tls_listener *listener,
|
||||
return PJ_SUCCESS;
|
||||
|
||||
on_error:
|
||||
- tls_destroy(&tls->base, status);
|
||||
+ if (tls->grp_lock && pj_grp_lock_get_ref(tls->grp_lock))
|
||||
+ tls_destroy(&tls->base, status);
|
||||
+ else
|
||||
+ tls_on_destroy(tls);
|
||||
+
|
||||
return status;
|
||||
}
|
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|
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@@ -1048,8 +1056,6 @@ static pj_status_t tls_destroy(pjsip_transport *transport,
|
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tls->grp_lock = NULL;
|
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pj_grp_lock_dec_ref(grp_lock);
|
||||
/* Transport may have been deleted at this point */
|
||||
- } else {
|
||||
- tls_on_destroy(tls);
|
||||
}
|
||||
|
||||
return PJ_SUCCESS;
|
||||
@@ -1235,7 +1241,7 @@ static pj_status_t lis_create_transport(pjsip_tpfactory *factory,
|
||||
pj_ssl_sock_set_user_data(tls->ssock, tls);
|
||||
|
||||
/* Set up the group lock */
|
||||
- tls->grp_lock = glock;
|
||||
+ tls->grp_lock = tls->base.grp_lock = glock;
|
||||
pj_grp_lock_add_ref(tls->grp_lock);
|
||||
pj_grp_lock_add_handler(tls->grp_lock, pool, tls, &tls_on_destroy);
|
||||
|
||||
diff --git a/pjsip/src/pjsip/sip_transport_udp.c b/pjsip/src/pjsip/sip_transport_udp.c
|
||||
index dbda474cf..b82d519c9 100644
|
||||
--- a/pjsip/src/pjsip/sip_transport_udp.c
|
||||
+++ b/pjsip/src/pjsip/sip_transport_udp.c
|
||||
@@ -691,6 +691,8 @@ static pj_status_t register_to_ioqueue(struct udp_transport *tp)
|
||||
pj_grp_lock_add_ref(tp->grp_lock);
|
||||
pj_grp_lock_add_handler(tp->grp_lock, tp->base.pool, tp,
|
||||
&udp_on_destroy);
|
||||
+
|
||||
+ tp->base.grp_lock = tp->grp_lock;
|
||||
}
|
||||
|
||||
/* Register to ioqueue. */
|
||||
--
|
||||
2.20.1
|
||||
|
Loading…
Reference in new issue