main.cc

/*
 * libjingle
 * Copyright 2012, Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "backend/conductor.h"
#include "backend/flagdefs.h"
#include "main_wnd.h"
#include "backend/peer_connection_client.h"

#include "talk/base/ssladapter.h"
#include "talk/base/thread.h"

#include <QtWidgets/QApplication>

#ifdef WIN32
#include <Windows.h>
#endif


namespace
{
  static QApplication* app;
};

class CustomSocketServer : public talk_base::PhysicalSocketServer {
 public:
  CustomSocketServer(talk_base::Thread* thread, QtMainWnd* wnd)
      : thread_(thread), wnd_(wnd), conductor_(NULL), client_(NULL) {}
  virtual ~CustomSocketServer() {}

  void set_client(PeerConnectionClient* client) { client_ = client; }
  void set_conductor(Conductor* conductor) { conductor_ = conductor; }

  // Override so that we can also pump the GTK message loop.
  virtual bool Wait(int cms, bool process_io) {
    // Pump GTK events.
    // TODO: We really should move either the socket server or UI to a
    // different thread.  Alternatively we could look at merging the two loops
    // by implementing a dispatcher for the socket server and/or use
    // g_main_context_set_poll_func.

    app->processEvents();

    if (!wnd_->IsWindow() && !conductor_->connection_active() &&
        client_ != NULL && !client_->is_connected()) {
      thread_->Quit();
    }
    return talk_base::PhysicalSocketServer::Wait(0/*cms == -1 ? 1 : cms*/,
                                                 process_io);
  }

 protected:
  talk_base::Thread* thread_;
  QtMainWnd* wnd_;
  Conductor* conductor_;
  PeerConnectionClient* client_;
};

#ifdef WIN32
int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
  int argc = __argc;
  char** argv = __argv;
#else
int main(int argc, char* argv[]) {
#endif
  app = new QApplication(argc, argv);

  FlagList::SetFlagsFromCommandLine(&argc, argv, true);
  if (FLAG_help) {
    FlagList::Print(NULL, false);
    return 0;
  }

  // Abort if the user specifies a port that is outside the allowed
  // range [1, 65535].
  if ((FLAG_port < 1) || (FLAG_port > 65535)) {
    printf("Error: %i is not a valid port.\n", FLAG_port);
    return -1;
  }

  QtMainWnd wnd(FLAG_server, FLAG_port, FLAG_autoconnect, FLAG_autocall);
  wnd.Create();

  talk_base::AutoThread auto_thread;
  talk_base::Thread* thread = talk_base::Thread::Current();
  CustomSocketServer socket_server(thread, &wnd);
  thread->set_socketserver(&socket_server);

  talk_base::InitializeSSL();
  // Must be constructed after we set the socketserver.
  PeerConnectionClient client;
  talk_base::scoped_refptr<Conductor> conductor(
      new talk_base::RefCountedObject<Conductor>(&client, &wnd));
  socket_server.set_client(&client);
  socket_server.set_conductor(conductor);

  thread->Run();

  // gtk_main();
  wnd.Destroy();

  thread->set_socketserver(NULL);
  // TODO: Run the Gtk main loop to tear down the connection.
  //while (gtk_events_pending()) {
  //  gtk_main_iteration();
  //}
  talk_base::CleanupSSL();
  return 0;
}