UDPSocketIODevice.h

Go to the documentation of this file.

// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4; -*-
// vim: set shiftwidth=4 softtabstop=4 expandtab:
/*
 ********************************************************************
 ** NIDAS: NCAR In-situ Data Acquistion Software
 **
 ** 2008, Copyright University Corporation for Atmospheric Research
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License as published by
 ** the Free Software Foundation; either version 2 of the License, or
 ** (at your option) any later version.
 **
 ** This program 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 General Public License for more details.
 **
 ** The LICENSE.txt file accompanying this software contains
 ** a copy of the GNU General Public License. If it is not found,
 ** write to the Free Software Foundation, Inc.,
 ** 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 **
 ********************************************************************
*/
#ifndef NIDAS_CORE_UDPSOCKETIODEVICE_H
#define NIDAS_CORE_UDPSOCKETIODEVICE_H

#include <nidas/util/Socket.h>
#include "SocketIODevice.h"

#include <iostream>

namespace nidas { namespace core {

class UDPSocketIODevice : public SocketIODevice {

public:

    UDPSocketIODevice();

    ~UDPSocketIODevice();

    void open(int flags)
    throw(nidas::util::IOException,nidas::util::InvalidParameterException);

    int getReadFd() const
    {
    if (_socket) return _socket->getFd();
    return -1;
    }

    int getWriteFd() const {
        if (_socket) return _socket->getFd();
        return -1;
    }

    size_t read(void *buf, size_t len) throw(nidas::util::IOException)
    {
    return _socket->recv(buf,len);
    }

    size_t read(void *buf, size_t len, int msecTimeout)
        throw(nidas::util::IOException);

    size_t write(const void *buf, size_t len) throw(nidas::util::IOException)
    {
        return _socket->send(buf,len);
    }

    void close() throw(nidas::util::IOException);

protected:

    nidas::util::DatagramSocket* _socket;

    UDPSocketIODevice(const UDPSocketIODevice&);

    UDPSocketIODevice& operator=(const UDPSocketIODevice&);

};

}}  // namespace nidas namespace core

#endif