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+/**
+ * @file llvfile.h
+ * @brief Definition of virtual file
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#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