DeviceIOStream.h

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#ifndef DEVICEIOSTREAM_H_
#define DEVICEIOSTREAM_H_

#include <cstdio>

#include "data/ElementURI.h"
#include "io/IOStream.h"
#include "logger/Logger.h"
class DeviceIOStream : public IOStream
{
public:

    DeviceIOStream( const char* filename, bool useHardware );

    DeviceIOStream( const ConfigURI& configUri, bool useHardware, Logger& logger );

    virtual ~DeviceIOStream();

    virtual IOStream& read( char* buffer, size_t num );

    bool isReadable()
    {
        return -1 != file_;
    }

    virtual bool eof()
    {
        return -1 != file_;
    }

    virtual OutStream& write( const char* buffer, size_t num );

    virtual bool isWritable()
    {
        return -1 != file_;
    }

    const char* getName()
    {
        return name_.cStr();
    }

protected:
    int file_;

private:
    // Note that the copy constructor below is private and not given a body.
    // Any attempt to call it will return a compiler error.
    DeviceIOStream( const DeviceIOStream& old ); // disallow copy constructor

    static Str GetFilename( const ConfigURI& configUri, Logger& logger );

    bool useHardware_;
    const Str name_;

};

#endif /*DEVICEIOSTREAM_H_*/