FsEntry.hpp

//------------------------------------------------------------------------------
//This file is part of embKernel. 
//See license.txt for the full license governing this code.
//------------------------------------------------------------------------------

#ifndef FS_ENTRY_HPP_
#define FS_ENTRY_HPP_

#include <stdint.h>
#include "FsDefs.hpp"

class FsEntry {
public:
    FsEntry();
    ~FsEntry();

    class FsPartition* mPartition;
    FsDefs::SECTOR* mSector;
    uint32_t mClusterBegin;
    uint32_t mLfnDirectoryEntryLba;
    uint32_t mDirectoryEntryLba;
    uint16_t mLfnDirectoryEntryIndex;
    uint16_t mDirectoryEntryIndex;
    uint32_t mPosition;
    uint32_t mCurrentLba;
    uint32_t mSize;

    union {
        struct {
            uint8_t readOnly :1;
            uint8_t unflushedSector :1;
            uint8_t unflushedDirectory :1;
            uint8_t sectorCacheInvalid :1;
            uint8_t directory :1;
            uint8_t createAlways :1;
            uint8_t spare :2;
        } bits;
        uint8_t value;
    } mFlags;

protected:
    FsDefs::RESULT open(const char* path, bool write, bool createAlways, bool isDirectory);
    FsDefs::RESULT del(const char* path, bool isDirectory);
    virtual FsDefs::RESULT close()=0;

private:
    FsDefs::RESULT internalPrepare(const char* path, bool isDirectory);
};

#endif /* FS_ENTRY_HPP_ */