opensipstack-devel

[OpenSIPStack] Problem with RTP_UDP:: Open

[Claudio M. <cmi...@gm...>]

Hi,

I was working in a softphone and I started to use the method RTP_UDP::Open,
but something went wrong.



int MediaBasica::OpenSinkRTPChannel(/*int channelID*/ OpalTransport_maritaca
& transport,std::string IP4address )
    {
          WORD firstPort = requestRTPPort(transport); // this method gets a
possible port to be used.
          WORD nextPort = firstPort;

          PIPSocket::Address endereco_local;
          PString not_buda = IP4address;


         transport.localAddress = not_buda ; // transport is a variable used
inside the class MediaBasica
         endereco_local = not_buda;



          while (!transport.maritaca.session_udp->Open(
transport.localAddress /**socklocal*/,
                                                        firstPort,
firstPort,'R',NULL,NULL)) {


At this moment my program stop working.

Everything has valid values.


I used the PTRACE log to see exactly where it had stopped, and I found this
in RTP.cxx



BOOL RTP_UDP::Open(PIPSocket::Address _localAddress,
                   WORD portBase, WORD portMax,
                   BYTE tos,
                   PSTUNClient * stun,
                   RTP_QOS * rtpQos)
{
  // save local address
  PTRACE(1,"1"); // I put this ptrace
  localAddress = _localAddress;
  PTRACE(1,"2");// I put this ptrace
  localDataPort    = (WORD)(portBase&0xfffe);
  PTRACE(1,"3");// I put this ptrace
  localControlPort = (WORD)(localDataPort + 1);

My output is 1, everything is ok until this line.

What did I do wrong ?


Thanks in advance

Claudio Miceli de Farias

Re: [OpenSIPStack] Problem with RTP_UDP:: Open

[Joegen E. B. <joe...@gm...>]

Without seeing your entire application it would be impossible to 
tell.    Are there other threads that might modify 
transport.maritaca.session_udp while you are calling 
session_udp->Open().  If so you might want to use some form of locking 
to make sure that only one thread has a access to the critical section.

Claudio Miceli wrote:
> Hi,
>
> I was working in a softphone and I started to use the method RTP_UDP::Open,
> but something went wrong.
>
>
>
> int MediaBasica::OpenSinkRTPChannel(/*int channelID*/ OpalTransport_maritaca
> & transport,std::string IP4address )
>     {
>           WORD firstPort = requestRTPPort(transport); // this method gets a
> possible port to be used.
>           WORD nextPort = firstPort;
>
>           PIPSocket::Address endereco_local;
>           PString not_buda = IP4address;
>
>
>          transport.localAddress = not_buda ; // transport is a variable used
> inside the class MediaBasica
>          endereco_local = not_buda;
>
>
>
>           while (!transport.maritaca.session_udp->Open(
> transport.localAddress /**socklocal*/,
>                                                         firstPort,
> firstPort,'R',NULL,NULL)) {
>
>
> At this moment my program stop working.
>
> Everything has valid values.
>
>
> I used the PTRACE log to see exactly where it had stopped, and I found this
> in RTP.cxx
>
>
>
> BOOL RTP_UDP::Open(PIPSocket::Address _localAddress,
>                    WORD portBase, WORD portMax,
>                    BYTE tos,
>                    PSTUNClient * stun,
>                    RTP_QOS * rtpQos)
> {
>   // save local address
>   PTRACE(1,"1"); // I put this ptrace
>   localAddress = _localAddress;
>   PTRACE(1,"2");// I put this ptrace
>   localDataPort    = (WORD)(portBase&0xfffe);
>   PTRACE(1,"3");// I put this ptrace
>   localControlPort = (WORD)(localDataPort + 1);
>
> My output is 1, everything is ok until this line.
>
> What did I do wrong ?
>
>
> Thanks in advance
>
> Claudio Miceli de Farias
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