TurnUdpSocket.cxx

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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
 
#include "TurnUdpSocket.hxx"
#include "../AsyncSocketBase.hxx"
 
using namespace std;
 
namespace reTurn {
 
TurnUdpSocket::TurnUdpSocket(const asio::ip::address& address, unsigned short port) : 
   TurnSocket(address,port),
   mSocket(mIOService)   
{
   mLocalBinding.setTransportType(StunTuple::UDP);
 
   asio::error_code errorCode;
   mSocket.open(address.is_v6() ? asio::ip::udp::v6() : asio::ip::udp::v4(), errorCode);
   if(!errorCode)
   {
      AsyncSocketBase::setExclusiveAddressUse(mSocket);
      mSocket.bind(asio::ip::udp::endpoint(mLocalBinding.getAddress(), mLocalBinding.getPort()), errorCode);
   }
}
 
asio::error_code 
TurnUdpSocket::connect(const std::string& address, unsigned short port)
{
   asio::error_code errorCode;
 
   // Get a list of endpoints corresponding to the server name.
   asio::ip::udp::resolver resolver(mIOService);
   resip::Data service(port);
   asio::ip::udp::resolver::results_type results = resolver.resolve(mSocket.local_endpoint().protocol(), address, service.c_str());
   asio::ip::udp::resolver::results_type::const_iterator endpoint_iterator = results.begin();
   asio::ip::udp::resolver::results_type::const_iterator end = results.end();
 
   // Use first endpoint in list
   if(endpoint_iterator == end)
   {
      return asio::error::host_not_found;
   }
 
   // Nothing to do for UDP except store the remote endpoint
   mRemoteEndpoint = endpoint_iterator->endpoint();
 
   mConnected = true;
   mConnectedTuple.setTransportType(StunTuple::UDP);
   mConnectedTuple.setAddress(mRemoteEndpoint.address());
   mConnectedTuple.setPort(mRemoteEndpoint.port());
 
   return errorCode;
}
 
asio::error_code 
TurnUdpSocket::rawWrite(const char* buffer, unsigned int size)
{
   asio::error_code errorCode;
   mSocket.send_to(asio::buffer(buffer, size), mRemoteEndpoint, 0, errorCode); 
   return errorCode;
}
 
asio::error_code 
TurnUdpSocket::rawWrite(const std::vector<asio::const_buffer>& buffers)
{
   asio::error_code errorCode;
   mSocket.send_to(buffers, mRemoteEndpoint, 0, errorCode); 
   return errorCode;
}
 
asio::error_code 
TurnUdpSocket::rawRead(unsigned int timeout, unsigned int* bytesRead, asio::ip::address* sourceAddress, unsigned short* sourcePort)
{
   startReadTimer(timeout);
 
   mSocket.async_receive_from(asio::buffer(mReadBuffer, sizeof(mReadBuffer)), mSenderEndpoint, 0, std::bind(&TurnUdpSocket::handleRawRead, this, std::placeholders::_1, std::placeholders::_2));
 
   // Wait for timer and read to end
   mIOService.run();
   mIOService.restart();
 
   *bytesRead = (unsigned int)mBytesRead;
 
   if(!mReadErrorCode)
   {
      if(sourceAddress)
      {
         *sourceAddress = mSenderEndpoint.address();
      }
      if(sourcePort)
      {
         *sourcePort = mSenderEndpoint.port();
      }
   }
   return mReadErrorCode;
}
 
void
TurnUdpSocket::cancelSocket()
{
   asio::error_code ec;
   mSocket.cancel(ec);
}
 
} // namespace
 
 
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 Copyright (c) 2007-2008, Plantronics, Inc.
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