65 lines
2.9 KiB
C++
65 lines
2.9 KiB
C++
/*
|
|
* Portable Agile C++ Classes (PACC)
|
|
* Copyright (C) 2001-2003 by Marc Parizeau
|
|
* http://manitou.gel.ulaval.ca/~parizeau/PACC
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Contact:
|
|
* Laboratoire de Vision et Systemes Numeriques
|
|
* Departement de genie electrique et de genie informatique
|
|
* Universite Laval, Quebec, Canada, G1K 7P4
|
|
* http://vision.gel.ulaval.ca
|
|
*
|
|
*/
|
|
|
|
/*!
|
|
* \file PACC/Socket/UDP.cpp
|
|
* \brief Class methods for the portable %UDP client.
|
|
* \author Marc Parizeau, Laboratoire de vision et systèmes numériques, Université Laval
|
|
* $Revision: 1.5.2.1 $
|
|
* $Date: 2007/09/10 18:24:09 $
|
|
*/
|
|
|
|
#include "Socket/UDP.hpp"
|
|
|
|
using namespace std;
|
|
using namespace PACC;
|
|
|
|
/*! \brief Receive string datagram from unconnected server.
|
|
|
|
This function waits for a datagram, or until time out. It returns the received datagram through output parameter \c outDatagram. It also returns the peer address through parameter \c outPeer. Any error raises a Socket::Exception. For instance, it throws an exception with code Socket::eTimeOut if the timeout period expires before reception of any datagram. The timeout period can be changed using function Port::setSockOpt with parameter Socket::eRecvTimeOut.
|
|
*/
|
|
void Socket::UDP::receiveDatagram(string& outDatagram, Socket::Address& outPeer)
|
|
{
|
|
// reserve adequate buffer space (if needed)
|
|
unsigned int lRecvBufSize = (unsigned int) getSockOpt(eRecvBufSize);
|
|
if(outDatagram.size() < lRecvBufSize) outDatagram.resize(lRecvBufSize);
|
|
// receive message
|
|
unsigned int lRecv = receiveFrom(&outDatagram[0], outDatagram.size(), outPeer);
|
|
// resize output string
|
|
outDatagram.resize(lRecv);
|
|
}
|
|
|
|
/*! \brief Send datagram message to unconnected server.
|
|
\attention Maximum datagram size defaults to 1024 bytes.
|
|
|
|
This function sends datagram string \c inDatagram to peer socket at address \c inPeer. Any error raises a Socket::Exception. For instance, it throws an exception with code Socket::eTimeOut if the datagram cannot be sent before the time out period expires. The time out period can be changed using function Port::setSockOpt with parameter Socket::eSendTimeOut.
|
|
*/
|
|
void Socket::UDP::sendDatagram(const string& inDatagram, const Socket::Address& inPeer)
|
|
{
|
|
sendTo(inDatagram.data(), inDatagram.size(), inPeer);
|
|
}
|