hello
I want create conference call with conference bridge and i want connect
conference ports in callback "on_call_media_state" because i think this is
best point where i can do this. or exist better point?
Therefore i need know if member "remote_info" in struct "pjsua_call_info"
(pjsua_call_info::remote_info) have same value as argument "dst_uri" in metod
"pjsua_call_make_call" because i can't use call ID for this:
I get call ID after calling method "pjsua_call_make_call". But after calling
this method in other thread is calling callback "on_call_media_state" and if i
want be thread safe i have to use mutex for method "on_call_media_state" where
i check if call ID belong to conference...(not every call must be in
conference) and second point where i have to use mutex is in loop where i
calling method "pjsua_call_make_call" where i insert each call ID to "my"
conference list (it's vector)..and other mutex where i delete conference..but
this is not essential for this purpose...
here is pseudo-code for better understanding:
//uri_vector contains all uri for conference call
CreateConfCall( uri_vector )
{
//cycle through all uri's
mutex.lock()
for () {
id = pjsua_call_make_call( uri )
my_vector_conf_call.push_back( id )
}
mutex.unlock()
}
i can't do this
for () {
id = pjsua_call_make_call( uri )
mutex.lock()
my_vector_conf_call.push_back( )
mutex.unlock()
}
because if "on_call_media_state" occured first call ID will not be in my vector
and method which check if call belong to conference call return false...
then call will be not connect to conference..
on_call_media_state( call_id)
{
ci = pjsua_call_get_info( call_id )
//check if media is active
if (ci.media_status == PJSUA_CALL_MEDIA_ACTIVE) {
mutex.lock()
//check if this call belong to conference call
if (Check( call_id) == true ) {
//connect to all active call
//cycle through all active calls which belong to conference
for() {
pj_sua_conf_connect();
}
}
mutex.unlock()
}
}
As you see deadlock occured when i second time call "pjsua_call_make_call" and
other thread is waiting on mutex in "on_call_media_state" method.
i suppose this deadlock occured somewhere in pjsua library where is mutex for
"pjsua_call_make_call" thread and for "on_call_media_state" thread.
Therefore i want know if member "remote_info" in struct "pjsua_call_info"
(pjsua_call_info::remote_info) have same value as argument "dst_uri" in metod
"pjsua_call_make_call". Then i can insert all calls to my vector before
calling "pjsua_call_make_call" method...
thanks
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