llvfile.h
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- /**
- * @file llvfile.h
- * @brief Definition of virtual file
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #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;
-
- protected:
- LLAssetType::EType mFileType;
- LLUUID mFileID;
- S32 mPosition;
- S32 mMode;
- LLVFS *mVFS;
- F32 mPriority;
- S32 mBytesRead;
- LLVFSThread::handle_t mHandle;
- };
- #endif