/*
 * Copyright 2002-2006, Haiku, Inc. All Rights Reserved.
 * Distributed under the terms of the MIT License.
 */
#ifndef _FILE_H
#define _FILE_H


#include <DataIO.h>
#include <Node.h>
#include <StorageDefs.h>


class BEntry;


class BFile : public BNode, public BPositionIO {
        public:
                BFile();
                BFile(const BFile &file);
                BFile(const entry_ref *ref, uint32 openMode);
                BFile(const BEntry *entry, uint32 openMode);
                BFile(const char *path, uint32 openMode);
                BFile(const BDirectory *dir, const char *path, uint32 openMode);
                virtual ~BFile();

                status_t SetTo(const entry_ref *ref, uint32 openMode);
                status_t SetTo(const BEntry *entry, uint32 openMode);
                status_t SetTo(const char *path, uint32 openMode);
                status_t SetTo(const BDirectory *dir, const char *path, uint32 openMode);

                bool IsReadable() const;
                bool IsWritable() const;

                virtual ssize_t Read(void *buffer, size_t size);
                virtual ssize_t ReadAt(off_t location, void *buffer, size_t size);
                virtual ssize_t Write(const void *buffer, size_t size);
                virtual ssize_t WriteAt(off_t location, const void *buffer, size_t size);

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

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

                BFile &operator=(const BFile &file);

        private:
                virtual void _PhiloFile1();
                virtual void _PhiloFile2();
                virtual void _PhiloFile3();
                virtual void _PhiloFile4();
                virtual void _PhiloFile5();
                virtual void _PhiloFile6();

                uint32 _reservedData[8];

        private:
                int get_fd() const;
                virtual void close_fd();

        private:
                // The file's open mode.
                uint32 fMode;
};

#endif  // _FILE_H