/* * libjingle * Copyright 2004--2005, 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. */#if defined(_MSC_VER) && _MSC_VER < 1300#pragma warning(disable:4786 4530)#endif#include "asyncudpsocket.h"#include <cassert>#include <cstring>namespace cricket {const int BUF_SIZE = 64 * 1024;AsyncUDPSocket::AsyncUDPSocket(AsyncSocket* socket) : AsyncPacketSocket(socket) {  size_ = BUF_SIZE;  buf_ = new char[size_];  assert(socket_);  // The socket should start out readable but not writable.  socket_->SignalReadEvent.connect(this, &AsyncUDPSocket::OnReadEvent);}AsyncUDPSocket::~AsyncUDPSocket() {  delete [] buf_;}void AsyncUDPSocket::OnReadEvent(AsyncSocket* socket) {  assert(socket == socket_);  SocketAddress remote_addr;  int len = socket_->RecvFrom(buf_, size_, &remote_addr);  if (len < 0) {    // TODO: Do something better like forwarding the error to the user.        return;  }  // TODO: Make sure that we got all of the packet.  If we did not, then we  // should resize our buffer to be large enough.  SignalReadPacket(buf_, (size_t)len, remote_addr, this);}} // namespace cricket