[Freeswitch-users] esl api issues
leon.he at msn.com
Wed Aug 6 19:52:09 MSD 2014
Recently I'm writing an Application with ESL in inbound mode. I have two
a) Each time I call this interface, handle->last_ievent will be
updated to be the oldest event. Just like de-queue the oldest event from
My assumption is right or not?
b) After call this interface, may I access "handle->last_ievent"
without any protection( without mutex/lock)?
If there is any risk of handle->last_ievent is updated during my access, for
example some other interfaces are called or new events are received from FS
Per my experience, seems has such risk.
When I read the implementation of the code, is there any possibility to
dead lock as following?
+-->esl_send_recv /esl_send_recv_timed(_handle, _cmd, 0)
+--> esl_mutex_lock(handle->mutex); <<<<< lock for 1st time
+--> esl_recv_event_timed(handle, ms, 0, &handle
+----> esl_mutex_lock(handle->mutex); <<<<<< lock
for 2nd time, but preview one is not unlock
Can anyone confirm this?
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