many crashes in iOS10, maybe because to keep-alive timer

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Hi,


I found that pjsip2.5 crashes a lot in iOS 10, I finally got the crash logs. I suspect this maybe because iOS 10 formally forbid keep-alive when app is in background and pjsip keep-alive timer causes that.


So how do I disable keep-alive timer when I want to ? Can just set tcp->ka_timer.id = PJ_FALSE does the job ? But it could be another reason. Any ideas ?


Thanks!


Qiulang


on_connect_complete (sip_transport_tcp.c:1583)

    /* Start keep-alive timer */

    if (pjsip_cfg()->tcp.keep_alive_interval) {

pj_time_val delay = { 0 };

delay.sec = pjsip_cfg()->tcp.keep_alive_interval;

pjsip_endpt_schedule_timer(tcp->base.endpt, &tcp->ka_timer

  &delay);

tcp->ka_timer.id = PJ_TRUE;




0   libsystem_kernel.dylib               0x000000018a1f6014 __pthread_kill + 8
1   libsystem_pthread.dylib              0x000000018a2bd460 pthread_kill + 108
2   libsystem_c.dylib                    0x000000018a16a3f4 abort + 136
3   libsystem_c.dylib                    0x000000018a13e40c __assert_rtn + 312
4   ipjsua                               0x0000000100a5e170 schedule_w_grp_lock + 776
5   ipjsua                               0x0000000100146278 on_connect_complete (sip_transport_tcp.c:1583)
6   ipjsua                               0x0000000100a55f54 ioqueue_on_connect_complete + 48
7   ipjsua                               0x0000000100a5058c ioqueue_dispatch_write_event + 628
8   ipjsua                               0x0000000100a524b4 pj_ioqueue_poll + 720
9   ipjsua                               0x00000001002178b4 pjsip_endpt_handle_events2 (sip_endpoint.c:742)
10  ipjsua                               0x00000001001b891c pjsua_handle_events (pjsua_core.c:1976)
11  ipjsua                               0x00000001001b81d4 worker_thread (pjsua_core.c:701)
12  ipjsua                               0x0000000100a535e4 thread_main + 80
13  libsystem_pthread.dylib              0x000000018a2bb860 _pthread_body + 236
14  libsystem_pthread.dylib              0x000000018a2bb770 _pthread_start + 280
15  libsystem_pthread.dylib              0x000000018a2b8dbc thread_start + 0
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