I'm attempting to implement the reachability code provided in the patch.
if(NULL != theTransport){
[self registerThread];
[qLogger logWithFormat:@"%@ Shutting down transport",COMPONENT_NAME
];
pjsip_transport_shutdown(theTransport);
pjsip_transport_dec_ref(theTransport);
//crashes pjsua_acc_set_registration(dynamic_account_id, PJ_FALSE);
}
In every callback I see the account ID = 0. In all cases the id is 0 for
dynamic_account_id is 0. However the commented-out call always crashes.
What is the approved way to get the account ID? I have only a single
account.
BTW, the implementation so far seems to work some of the time. Sometimes
it crashes with assert errors in the library. I call the above code when I
detect a reachability change. (Pretty much the same as the patch).
On Tue, Jun 12, 2012 at 6:06 PM, Samuel Vinson <samuelv at laposte.net> wrote:
> Did you look this: https://trac.pjsip.org/repos/wiki/IPAddressChange
>
> Samuel
>
> Le 12/06/12 22:42, Tom Merriewether a ?crit :
>
> I'm implementing a VoIP app on the iPhone and I have a problem with the
> teardown and restart of the pjsip library. Specifically, when I detect
> that the user has no network connectivity I want to halt the actions of
> pjsip SIP send/receive until I detect that a useable network is available.
> Then I want to restart the SIP send/receive so the the SIP sockets will
> bind to the new interface, say a transition from Wi-Fi to 3G. I use
> pjsua_destroy to tear things down. I use the same function to bring the
> library back up again. The first time I bring the library up everything
> works. Subsequent loads bring the library up but on receiving an INVITE,
> I get the error:
>
> Warning: 399 iPhone-iOS-5 "No suitable codec for remote offer
> (PJMEDIA_SDPNEG_NOANSCODEC)"
>
> It looks like pjsua_destroy deletes/stops/kills the media subsystem.
> Nothing in my code explicitly loads or unloads codecs so I'm guessing its
> a side effect.
>
> Question: How do I start/stop pjsip so that I can quiesce SIP traffic
> when no network interfaces are available and then bring it back up when an
> interface is available .. and do this frequently, reliably, and cleanly?
> I'm doing all this because, as far as I can tell, the library does not do
> reachability probes and rebind sockets to the appropriate interface.
> According to Apple, CFSocketStreams can pass these events to a callback,
> but other than mark a TCP socket as VOIP, the library appears to ignore
> the streams entirely.
>
>
> I know this is a lot, what I'm really doing is trying to get around the
> fact that the iPhone-specific code in the library does not handle
> reachability or stream events.
>
> TIA
>
> T.M.
>
>
> --
> Thomas Merriewether
> Star2Star Communications
>
>
>
>
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>
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>
>
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--
Thomas Merriewether
Star2Star Communications
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