llvfile.h

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#ifndef LL_LLVFILE_H
#define LL_LLVFILE_H

#include "lluuid.h"
#include "llassettype.h"
#include "llvfs.h"
#include "llvfsthread.h"

class LLVFile
{
public:
        LLVFile(LLVFS *vfs, const LLUUID &file_id, const LLAssetType::EType file_type, S32 mode = LLVFile::READ);
        ~LLVFile();

        BOOL read(U8 *buffer, S32 bytes, BOOL async = FALSE, F32 priority = 128.f);     /* Flawfinder: ignore */ 
        static U8* readFile(LLVFS *vfs, const LLUUID &uuid, LLAssetType::EType type, S32* bytes_read = 0);
        void setReadPriority(const F32 priority);
        BOOL isReadComplete();
        S32  getLastBytesRead();
        BOOL eof();

        BOOL write(const U8 *buffer, S32 bytes);
        static BOOL writeFile(const U8 *buffer, S32 bytes, LLVFS *vfs, const LLUUID &uuid, LLAssetType::EType type);
        BOOL seek(S32 offset, S32 origin = -1);
        S32  tell() const;

        S32 getSize();
        S32 getMaxSize();
        BOOL setMaxSize(S32 size);
        BOOL rename(const LLUUID &new_id, const LLAssetType::EType new_type);
        BOOL remove();

        bool isLocked(EVFSLock lock);
        void waitForLock(EVFSLock lock);
        
        static void initClass(LLVFSThread* vfsthread = NULL);
        static void cleanupClass();
        static LLVFSThread* getVFSThread() { return sVFSThread; }

protected:
        static LLVFSThread* sVFSThread;
        static BOOL sAllocdVFSThread;
        U32 threadPri() { return LLVFSThread::PRIORITY_NORMAL + llmin((U32)mPriority,(U32)0xfff); }
        
public:
        static const S32 READ;
        static const S32 WRITE;
        static const S32 READ_WRITE;
        static const S32 APPEND;

        static BOOL ALLOW_ASYNC;
        
protected:
        LLAssetType::EType mFileType;

        LLUUID  mFileID;
        S32             mPosition;
        S32             mMode;
        LLVFS   *mVFS;
        F32             mPriority;
        BOOL    mOnReadQueue;

        S32             mBytesRead;
        LLVFSThread::handle_t mHandle;
};

#endif

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