Merge branch 'master' into DRTVWR-521-maint

1 files changed, 90 insertions, 0 deletions

diff --git a/indra/llvfs/llvfile.h b/indra/llvfs/llvfile.h
new file mode 100644
index 0000000000..7e9d9f73e5
--- /dev/null
+++ b/indra/llvfs/llvfile.h
@@ -0,0 +1,90 @@
+/** 
+ * @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