FsMount.h

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// -*- 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
 **
 ** 2009, 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_FSMOUNT_H
#define NIDAS_CORE_FSMOUNT_H

#include <nidas/util/Thread.h>
#include <nidas/util/Process.h>
#include <nidas/util/IOException.h>

#include "DOMable.h"

#include <sys/mount.h>

#include <string>
#include <iostream>

namespace nidas { namespace core {

using namespace nidas::core;

class FileSet;
class FsMountWorkerThread;

class FsMount : public DOMable {

public:

    FsMount();

    FsMount(const FsMount& x);

    ~FsMount() {}

    FsMount& operator=(const FsMount& rhs);

    void setDir(const std::string& val);

    const std::string& getDir() const { return _dir; }

    const std::string& getDirExpanded() const { return _dirExpanded; }

    void setDevice(const std::string& val);

    const std::string& getDevice() const { return _device; }

    const std::string& getDeviceExpanded() const { return _deviceExpanded; }

    void setType(const std::string& val)
    {
        _type = val;
    }

    const std::string& getType() const { return _type; }

    void setOptions(const std::string& val)
    {
        _options = val;
    }

    const std::string& getOptions() const { return _options; }

    bool isMounted();

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

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

    void mount(FileSet*) throw(nidas::util::IOException);

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

    void cancel();

    void finished();

    void fromDOMElement(const xercesc::DOMElement* node)
    throw(nidas::util::InvalidParameterException);

protected:

    std::string _dir;

    std::string _dirExpanded;

    std::string _dirMsg;

    std::string _device;

    std::string _deviceExpanded;

    std::string _deviceMsg;

    std::string _type;
 
    std::string _options;

    FileSet* _fileset;

    FsMountWorkerThread* _worker;

    nidas::util::Mutex _workerLock;

    nidas::util::Process _mountProcess;

    nidas::util::Process _umountProcess;

};

class FsMountWorkerThread : public nidas::util::Thread
{
public:
    FsMountWorkerThread(FsMount* fsm);
    int run() throw(nidas::util::Exception);

private:
    FsMount* fsmount;

    FsMountWorkerThread(const FsMountWorkerThread&);

    FsMountWorkerThread& operator=(const FsMountWorkerThread&);
};

}}  // namespace nidas namespace core

#endif