| /* |
| * 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) |
| #endif |
| |
| #include "talk/base/asyncudpsocket.h" |
| #include "talk/base/logging.h" |
| |
| namespace talk_base { |
| |
| const int BUF_SIZE = 64 * 1024; |
| |
| AsyncUDPSocket::AsyncUDPSocket(AsyncSocket* socket) |
| : AsyncPacketSocket(socket) { |
| ASSERT(socket_ != NULL); |
| size_ = BUF_SIZE; |
| buf_ = new char[size_]; |
| |
| // 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) { |
| // An error here typically means we got an ICMP error in response to our |
| // send datagram, indicating the remote address was unreachable. |
| // When doing ICE, this kind of thing will often happen. |
| // TODO: Do something better like forwarding the error to the user. |
| SocketAddress local_addr = socket_->GetLocalAddress(); |
| LOG(LS_INFO) << "AsyncUDPSocket[" << local_addr.ToString() << "] " |
| << "receive failed with error " << socket_->GetError(); |
| 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 talk_base |