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/*
* 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"
#include <cassert>
#include <cstring>
#include <iostream>
#if defined(_MSC_VER) && _MSC_VER < 1300
namespace std {
using ::strerror;
}
#endif
#ifdef POSIX
extern "C" {
#include <errno.h>
}
#endif // POSIX
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.
PLOG(LS_ERROR, socket_->GetError()) << "recvfrom";
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
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