/*
 * Copyright 2009-2010, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef _FILE_DESCRIPTOR_IO_H
#define _FILE_DESCRIPTOR_IO_H


#include <DataIO.h>


class BFileDescriptorIO : public BPositionIO {
public:
                                                                BFileDescriptorIO(int fd,
                                                                        bool takeOverOwnership = false);
        virtual                                         ~BFileDescriptorIO();

        virtual ssize_t                         Read(void *buffer, size_t size);
        virtual ssize_t                         Write(const void *buffer, size_t size);

        virtual ssize_t                         ReadAt(off_t position, void *buffer,
                                                                        size_t size);
        virtual ssize_t                         WriteAt(off_t position, const void *buffer,
                                                                        size_t size);

        virtual off_t                           Seek(off_t position, uint32 seekMode);
        virtual off_t                           Position() const;

        virtual status_t                        SetSize(off_t size);
        virtual status_t                        GetSize(off_t* size) const;

private:
                                                                BFileDescriptorIO(
                                                                        const BFileDescriptorIO& other);
                        BFileDescriptorIO&      operator=(const BFileDescriptorIO& other);

private:
                        int                                     fFD;
                        bool                            fOwnsFD;
};


#endif  // _FILE_DESCRIPTOR_IO_H