93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
/**
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* @file llvfile.h
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* @brief Definition of virtual file
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*
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* $LicenseInfo:firstyear=2002&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLVFILE_H
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#define LL_LLVFILE_H
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#include "lluuid.h"
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#include "llassettype.h"
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#include "llvfs.h"
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#include "llvfsthread.h"
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class LLPrivateMemoryPool;
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class LLVFile
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{
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public:
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LLVFile(LLVFS *vfs, const LLUUID &file_id, const LLAssetType::EType file_type, S32 mode = LLVFile::READ);
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~LLVFile();
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BOOL read(U8 *buffer, S32 bytes, BOOL async = FALSE, F32 priority = 128.f); /* Flawfinder: ignore */
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static U8* readFile(LLVFS *vfs, LLPrivateMemoryPool* poolp, const LLUUID &uuid, LLAssetType::EType type, S32* bytes_read = 0);
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void setReadPriority(const F32 priority);
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BOOL isReadComplete();
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S32 getLastBytesRead();
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BOOL eof();
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BOOL write(const U8 *buffer, S32 bytes);
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static BOOL writeFile(const U8 *buffer, S32 bytes, LLVFS *vfs, const LLUUID &uuid, LLAssetType::EType type);
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BOOL seek(S32 offset, S32 origin = -1);
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S32 tell() const;
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S32 getSize();
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S32 getMaxSize();
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BOOL setMaxSize(S32 size);
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BOOL rename(const LLUUID &new_id, const LLAssetType::EType new_type);
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BOOL remove();
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bool isLocked(EVFSLock lock);
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void waitForLock(EVFSLock lock);
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static void initClass(LLVFSThread* vfsthread = NULL);
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static void cleanupClass();
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static LLVFSThread* getVFSThread() { return sVFSThread; }
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protected:
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static LLVFSThread* sVFSThread;
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static BOOL sAllocdVFSThread;
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U32 threadPri() { return LLVFSThread::PRIORITY_NORMAL + llmin((U32)mPriority,(U32)0xfff); }
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public:
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static const S32 READ;
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static const S32 WRITE;
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static const S32 READ_WRITE;
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static const S32 APPEND;
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protected:
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LLAssetType::EType mFileType;
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LLUUID mFileID;
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S32 mPosition;
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S32 mMode;
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LLVFS *mVFS;
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F32 mPriority;
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S32 mBytesRead;
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LLVFSThread::handle_t mHandle;
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};
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#endif
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