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JoaoMGomes / libjingle

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IOS Ported libjingle hangs on PhysicalSocketServer::Wait #288

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Apologies if this is an inappropriate forum for my issue, 

I've ported the latest lib jingle to iOS, modifying macsocketserver to avoid 
compiling framework as carbon when IOS is defined. I also removed the OSX 
definition from main.scons. 
The entire scons is available here: 
https://github.com/alist/libjingle_ios/blob/master/main.scons

In my app, I create a new thread which calls _setupXMPPConnection after app 
startup.  
https://github.com/swyp/swyp/blob/jingle/libSwyp/swypCloudNetService.mm#L92

On line 135, XmppSocket::XmppSocket within xmppsocket.cc believes it has 
created a talk_base::AsyncSocket* socket (it has a valid pointer ref).

Calling the hierarchy:
XmppSocket::XmppSocket /* containing the code:
talk_base::AsyncSocket* socket =
    pth->socketserver()->CreateAsyncSocket(SOCK_STREAM);
*/
PhysicalSocketServer::CreateAsyncSocket
SocketDispatcher::SocketDispatcher
PhysicalSocket::PhysicalSocket 

So far seems normal. 

Then also in pump.DoLogin 
XmppClient::Connect seems to be fine, passing
  if (d_->socket_.get() != NULL)
    return XMPP_RETURN_BADSTATE;
without an issue. 

XmppClient::ProcessStartXmppLogin is never called
XmppSocket::Connect is never called
physicalsocketserver.cc's Bind(const SocketAddress& addr) is never called. 

The thread hangs at PhysicalSocketServer::Wait on line 1287 with:
    int n = select(fdmax + 1, &fdsRead, &fdsWrite, NULL, ptvWait);
it hangs here forever, after running the trace:

#0  talk_base::PhysicalSocketServer::Wait(int, bool) at 
./libjingle/talk/base/physicalsocketserver.cc:1287
#1  talk_base::MessageQueue::Get(talk_base::Message*, int, bool) at 
./libjingle/talk/base/messagequeue.cc:242
#2  talk_base::Thread::ProcessMessages(int) ()
#3  talk_base::Thread::Run() at ./libjingle/talk/base/thread.cc:342
#4  -[swypCloudNetService _setupXMPPConnection] at ./swypCloudNetService.mm:139

It hangs here forever. I'm not sure what to try, socket things aren't calling, 
but I'm not sure if that's a symptom of the hang at Wait, or what. 
I initially began with the auto threading suggestion given at 
http://code.google.com/apis/talk/libjingle/login.html, but this implementation 
seems better to me… Btw that wasn't working. 

Help or advice would save my life. 
Regards.

Original issue reported on code.google.com by atl...@gmail.com on 28 Jan 2012 at 11:04

GoogleCodeExporter commented 9 years ago 
Linux manual for "select":  Consider timeout to be undefined after select() 
returns

...so does your code hang after a single iteration through the while(fWait) 
code???

MORE:    On Linux, select() modifies timeout to reflect the amount of time not 
slept; most other implementations do not do this. (POSIX.1-2001 permits either 
behavior.) This causes problems both when Linux code which reads timeout is 
ported to other operating systems, and when code is ported to Linux that reuses 
a struct timeval for multiple select()s in a loop without reinitializing it. 
Consider timeout to be undefined after select() returns.

http://linux.die.net/man/2/select

Original comment by krw2...@gmail.com on 3 Mar 2012 at 3:36

GoogleCodeExporter commented 9 years ago 
I guess I should have addded:  since the "select" function is so primitive 
(directly into the kernel), it's very likely that the iOS kernel is setting 
your wait/wakup timer to null after the first call (and not updating it like 
Linux does).

Please let me know if this works.

Keith

Original comment by krw2...@gmail.com on 3 Mar 2012 at 3:40

GoogleCodeExporter commented 9 years ago 
How can I build libjingle user armv6 or armv7. not iPhoneSimulator4.3. thank 
you.

Original comment by kan...@gmail.com on 10 Jun 2012 at 3:44

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
1.reference this:
https://bitbucket.org/ivucica/libjingle-builder
http://blog.csdn.net/ipromiseu/article/details/6140115

2.use this patch,maybe u need to modify some path as yours in patch file. 

3.mail me(guohui.great --- gmail )

Original comment by guohui.g...@gmail.com on 5 Jul 2012 at 6:19

Attachments:

GoogleCodeExporter commented 9 years ago 
Was there ever a workaround found for this issue? It looks like IOS builds are 
still hanging on that same line.

Original comment by Zack.Man...@gmail.com on 18 Mar 2013 at 6:47

GoogleCodeExporter commented 9 years ago 
Closing this issue; for updates, follow the iOS-related issues in the WebRTC 
issue tracker.

Original comment by juberti@google.com on 1 Jun 2013 at 4:42