140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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/*
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* ast_h323.cpp
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*
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* OpenH323 Channel Driver for ASTERISK PBX.
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* By Jeremy McNamara
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* For The NuFone Network
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*
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* chan_h323 has been derived from code created by
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* Michael Manousos and Mark Spencer
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*
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* This file is part of the chan_h323 driver for Asterisk
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*
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* chan_h323 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* chan_h323 is distributed WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Version Info: $Id$
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*/
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#include <ptlib.h>
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#include <h323.h>
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#include <transports.h>
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#include "ast_h323.h"
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#include "compat_h323.h"
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#if VERSION(OPENH323_MAJOR,OPENH323_MINOR,OPENH323_BUILD) < VERSION(1,17,3)
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MyH323TransportTCP::MyH323TransportTCP(
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H323EndPoint & endpoint,
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PIPSocket::Address binding,
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PBoolean listen)
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: H323TransportTCP(endpoint, binding, listen)
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{
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}
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PBoolean MyH323TransportTCP::Connect()
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{
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if (IsListening())
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return TRUE;
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PTCPSocket * socket = new PTCPSocket(remotePort);
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Open(socket);
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channelPointerMutex.StartRead();
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socket->SetReadTimeout(10000/*endpoint.GetSignallingChannelConnectTimeout()*/);
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localPort = endpoint.GetNextTCPPort();
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WORD firstPort = localPort;
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for (;;) {
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PTRACE(4, "H323TCP\tConnecting to "
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<< remoteAddress << ':' << remotePort
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<< " (local port=" << localPort << ')');
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if (socket->Connect(localAddress, localPort, remoteAddress))
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break;
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int errnum = socket->GetErrorNumber();
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if (localPort == 0 || (errnum != EADDRINUSE && errnum != EADDRNOTAVAIL)) {
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PTRACE(1, "H323TCP\tCould not connect to "
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<< remoteAddress << ':' << remotePort
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<< " (local port=" << localPort << ") - "
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<< socket->GetErrorText() << '(' << errnum << ')');
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channelPointerMutex.EndRead();
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return SetErrorValues(socket->GetErrorCode(), errnum);
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}
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localPort = endpoint.GetNextTCPPort();
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if (localPort == firstPort) {
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PTRACE(1, "H323TCP\tCould not bind to any port in range " <<
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endpoint.GetTCPPortBase() << " to " << endpoint.GetTCPPortMax());
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channelPointerMutex.EndRead();
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return SetErrorValues(socket->GetErrorCode(), errnum);
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}
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}
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socket->SetReadTimeout(PMaxTimeInterval);
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channelPointerMutex.EndRead();
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return OnOpen();
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}
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#endif
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PBoolean MyH323TransportUDP::DiscoverGatekeeper(H323Gatekeeper &gk, H323RasPDU &pdu, const H323TransportAddress &address)
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{
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PThread *thd = PThread::Current();
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/* If we run in OpenH323's thread use it instead of creating new one */
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if (thd)
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return H323TransportUDP::DiscoverGatekeeper(gk, pdu, address);
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/* Make copy of arguments to pass them into thread */
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discoverGatekeeper = &gk;
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discoverPDU = &pdu;
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discoverAddress = &address;
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/* Assume discovery thread isn't finished */
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discoverReady = FALSE;
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/* Create discovery thread */
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thd = PThread::Create(PCREATE_NOTIFIER(DiscoverMain), 0,
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PThread::NoAutoDeleteThread,
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PThread::NormalPriority,
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"GkDiscovery:%x");
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/* Wait until discovery thread signal us its finished */
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for(;;) {
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discoverMutex.Wait();
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if (discoverReady) /* Thread has been finished */
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break;
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discoverMutex.Signal();
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}
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discoverMutex.Signal();
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/* Cleanup/delete thread */
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thd->WaitForTermination();
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delete thd;
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return discoverResult;
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}
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void MyH323TransportUDP::DiscoverMain(PThread &thread, INT arg)
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{
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PWaitAndSignal m(discoverMutex);
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discoverResult = H323TransportUDP::DiscoverGatekeeper(*discoverGatekeeper, *discoverPDU, *discoverAddress);
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discoverReady = TRUE;
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}
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