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