Merge branch 'master' into DRTVWR-543-maint

1 files changed, 0 insertions, 2196 deletions

diff --git a/indra/llvfs/llvfs.cpp b/indra/llvfs/llvfs.cpp
deleted file mode 100644
index 2c64bf563e..0000000000
--- a/indra/llvfs/llvfs.cpp
+++ /dev/null
@@ -1,2196 +0,0 @@
-/** 
- * @file llvfs.cpp
- * @brief Implementation of virtual file system
- *
- * $LicenseInfo:firstyear=2002&license=viewerlgpl$
- * 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
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-
-#include "llvfs.h"
-
-#include <sys/stat.h>
-#include <set>
-#include <map>
-#if LL_WINDOWS
-#include <share.h>
-#else
-#include <sys/file.h>
-#endif
-    
-#include "llstl.h"
-#include "lltimer.h"
-    
-const S32 FILE_BLOCK_MASK = 0x000003FF;	 // 1024-byte blocks
-const S32 VFS_CLEANUP_SIZE = 5242880;  // how much space we free up in a single stroke
-const S32 BLOCK_LENGTH_INVALID = -1;	// mLength for invalid LLVFSFileBlocks
-
-LLVFS *gVFS = NULL;
-
-// internal class definitions
-class LLVFSBlock
-{
-public:
-	LLVFSBlock() 
-	{
-		mLocation = 0;
-		mLength = 0;
-	}
-    
-	LLVFSBlock(U32 loc, S32 size)
-	{
-		mLocation = loc;
-		mLength = size;
-	}
-    
-	static bool locationSortPredicate(
-		const LLVFSBlock* lhs,
-		const LLVFSBlock* rhs)
-	{
-		return lhs->mLocation < rhs->mLocation;
-	}
-
-public:
-	U32 mLocation;
-	S32	mLength;		// allocated block size
-};
-    
-LLVFSFileSpecifier::LLVFSFileSpecifier()
-:	mFileID(),
-	mFileType( LLAssetType::AT_NONE )
-{
-}
-    
-LLVFSFileSpecifier::LLVFSFileSpecifier(const LLUUID &file_id, const LLAssetType::EType file_type)
-{
-	mFileID = file_id;
-	mFileType = file_type;
-}
-    
-bool LLVFSFileSpecifier::operator<(const LLVFSFileSpecifier &rhs) const
-{
-	return (mFileID == rhs.mFileID)
-		? mFileType < rhs.mFileType
-		: mFileID < rhs.mFileID;
-}
-    
-bool LLVFSFileSpecifier::operator==(const LLVFSFileSpecifier &rhs) const
-{
-	return (mFileID == rhs.mFileID && 
-			mFileType == rhs.mFileType);
-}
-    
-    
-class LLVFSFileBlock : public LLVFSBlock, public LLVFSFileSpecifier
-{
-public:
-	LLVFSFileBlock() : LLVFSBlock(), LLVFSFileSpecifier()
-	{
-		init();
-	}
-    
-	LLVFSFileBlock(const LLUUID &file_id, LLAssetType::EType file_type, U32 loc = 0, S32 size = 0)
-		: LLVFSBlock(loc, size), LLVFSFileSpecifier( file_id, file_type )
-	{
-		init();
-	}
-
-	void init()
-	{
-		mSize = 0;
-		mIndexLocation = -1;
-		mAccessTime = (U32)time(NULL);
-
-		for (S32 i = 0; i < (S32)VFSLOCK_COUNT; i++)
-		{
-			mLocks[(EVFSLock)i] = 0;
-		}
-	}
-
-	#ifdef LL_LITTLE_ENDIAN
-	inline void swizzleCopy(void *dst, void *src, int size) { memcpy(dst, src, size); /* Flawfinder: ignore */}
-
-	#else
-	
-	inline U32 swizzle32(U32 x)
-	{
-		return(((x >> 24) & 0x000000FF) | ((x >> 8)  & 0x0000FF00) | ((x << 8)  & 0x00FF0000) |((x << 24) & 0xFF000000));
-	}
-	
-	inline U16 swizzle16(U16 x)
-	{
-		return(	((x >> 8)  & 0x000000FF) | ((x << 8)  & 0x0000FF00) );
-	}
-	
-	inline void swizzleCopy(void *dst, void *src, int size) 
-	{
-		if(size == 4)
-		{
-			((U32*)dst)[0] = swizzle32(((U32*)src)[0]); 
-		}
-		else if(size == 2)
-		{
-			((U16*)dst)[0] = swizzle16(((U16*)src)[0]); 
-		}
-		else
-		{
-			// Perhaps this should assert...
-			memcpy(dst, src, size);	/* Flawfinder: ignore */
-		}
-	}
-	
-	#endif
-
-	void serialize(U8 *buffer)
-	{
-		swizzleCopy(buffer, &mLocation, 4);
-		buffer += 4;
-		swizzleCopy(buffer, &mLength, 4);
-		buffer +=4;
-		swizzleCopy(buffer, &mAccessTime, 4);
-		buffer +=4;
-		memcpy(buffer, &mFileID.mData, 16); /* Flawfinder: ignore */	
-		buffer += 16;
-		S16 temp_type = mFileType;
-		swizzleCopy(buffer, &temp_type, 2);
-		buffer += 2;
-		swizzleCopy(buffer, &mSize, 4);
-	}
-    
-	void deserialize(U8 *buffer, const S32 index_loc)
-	{
-		mIndexLocation = index_loc;
-    
-		swizzleCopy(&mLocation, buffer, 4);
-		buffer += 4;
-		swizzleCopy(&mLength, buffer, 4);
-		buffer += 4;
-		swizzleCopy(&mAccessTime, buffer, 4);
-		buffer += 4;
-		memcpy(&mFileID.mData, buffer, 16);
-		buffer += 16;
-		S16 temp_type;
-		swizzleCopy(&temp_type, buffer, 2);
-		mFileType = (LLAssetType::EType)temp_type;
-		buffer += 2;
-		swizzleCopy(&mSize, buffer, 4);
-	}
-    
-	static BOOL insertLRU(LLVFSFileBlock* const& first,
-						  LLVFSFileBlock* const& second)
-	{
-		return (first->mAccessTime == second->mAccessTime)
-			? *first < *second
-			: first->mAccessTime < second->mAccessTime;
-	}
-    
-public:
-	S32  mSize;
-	S32  mIndexLocation; // location of index entry
-	U32  mAccessTime;
-	BOOL mLocks[VFSLOCK_COUNT]; // number of outstanding locks of each type
-    
-	static const S32 SERIAL_SIZE;
-};
-
-// Helper structure for doing lru w/ stl... is there a simpler way?
-struct LLVFSFileBlock_less
-{
-	bool operator()(LLVFSFileBlock* const& lhs, LLVFSFileBlock* const& rhs) const
-	{
-		return (LLVFSFileBlock::insertLRU(lhs, rhs)) ? true : false;
-	}
-};
-
-
-const S32 LLVFSFileBlock::SERIAL_SIZE = 34;
-     
-
-LLVFS::LLVFS(const std::string& index_filename, const std::string& data_filename, const BOOL read_only, const U32 presize, const BOOL remove_after_crash)
-:	mRemoveAfterCrash(remove_after_crash),
-	mDataFP(NULL),
-	mIndexFP(NULL)
-{
-	mDataMutex = new LLMutex();
-
-	S32 i;
-	for (i = 0; i < VFSLOCK_COUNT; i++)
-	{
-		mLockCounts[i] = 0;
-	}
-	mValid = VFSVALID_OK;
-	mReadOnly = read_only;
-	mIndexFilename = index_filename;
-	mDataFilename = data_filename;
-    
-	const char *file_mode = mReadOnly ? "rb" : "r+b";
-    
-	LL_INFOS("VFS") << "Attempting to open VFS index file " << mIndexFilename << LL_ENDL;
-	LL_INFOS("VFS") << "Attempting to open VFS data file " << mDataFilename << LL_ENDL;
-
-	mDataFP = openAndLock(mDataFilename, file_mode, mReadOnly);
-	if (!mDataFP)
-	{
-		if (mReadOnly)
-		{
-			LL_WARNS("VFS") << "Can't find " << mDataFilename << " to open read-only VFS" << LL_ENDL;
-			mValid = VFSVALID_BAD_CANNOT_OPEN_READONLY;
-			return;
-		}
-
-		mDataFP = openAndLock(mDataFilename, "w+b", FALSE);
-		if (mDataFP)
-		{
-			// Since we're creating this data file, assume any index file is bogus
-			// remove the index, since this vfs is now blank
-			LLFile::remove(mIndexFilename);
-		}
-		else
-		{
-			LL_WARNS("VFS") << "Couldn't open vfs data file " 
-				<< mDataFilename << LL_ENDL;
-			mValid = VFSVALID_BAD_CANNOT_CREATE;
-			return;
-		}
-
-		if (presize)
-		{
-			presizeDataFile(presize);
-		}
-	}
-
-	// Did we leave this file open for writing last time?
-	// If so, close it and start over.
-	if (!mReadOnly && mRemoveAfterCrash)
-	{
-		llstat marker_info;
-		std::string marker = mDataFilename + ".open";
-		if (!LLFile::stat(marker, &marker_info))
-		{
-			// marker exists, kill the lock and the VFS files
-			unlockAndClose(mDataFP);
-			mDataFP = NULL;
-
-			LL_WARNS("VFS") << "VFS: File left open on last run, removing old VFS file " << mDataFilename << LL_ENDL;
-			LLFile::remove(mIndexFilename);
-			LLFile::remove(mDataFilename);
-			LLFile::remove(marker);
-
-			mDataFP = openAndLock(mDataFilename, "w+b", FALSE);
-			if (!mDataFP)
-			{
-				LL_WARNS("VFS") << "Can't open VFS data file in crash recovery" << LL_ENDL;
-				mValid = VFSVALID_BAD_CANNOT_CREATE;
-				return;
-			}
-
-			if (presize)
-			{
-				presizeDataFile(presize);
-			}
-		}
-	}
-
-	// determine the real file size
-	fseek(mDataFP, 0, SEEK_END);
-	U32 data_size = ftell(mDataFP);
-
-	// read the index file
-	// make sure there's at least one file in it too
-	// if not, we'll treat this as a new vfs
-	llstat fbuf;
-	if (! LLFile::stat(mIndexFilename, &fbuf) &&
-		fbuf.st_size >= LLVFSFileBlock::SERIAL_SIZE &&
-		(mIndexFP = openAndLock(mIndexFilename, file_mode, mReadOnly))	// Yes, this is an assignment and not '=='
-		)
-	{	
-		std::vector<U8> buffer(fbuf.st_size);
-    		size_t buf_offset = 0;
-		size_t nread = fread(&buffer[0], 1, fbuf.st_size, mIndexFP);
- 
-		std::vector<LLVFSFileBlock*> files_by_loc;
-		
-		while (buf_offset < nread)
-		{
-			LLVFSFileBlock *block = new LLVFSFileBlock();
-    
-			block->deserialize(&buffer[buf_offset], (S32)buf_offset);
-    
-			// Do sanity check on this block.
-			// Note that this skips zero size blocks, which helps VFS
-			// to heal after some errors. JC
-			if (block->mLength > 0 &&
-				(U32)block->mLength <= data_size &&
-				block->mLocation < data_size &&
-				block->mSize > 0 &&
-				block->mSize <= block->mLength &&
-				block->mFileType >= LLAssetType::AT_NONE &&
-				block->mFileType < LLAssetType::AT_COUNT)
-			{
-				mFileBlocks.insert(fileblock_map::value_type(*block, block));
-				files_by_loc.push_back(block);
-			}
-			else
-			if (block->mLength && block->mSize > 0)
-			{
-				// this is corrupt, not empty
-				LL_WARNS("VFS") << "VFS corruption: " << block->mFileID << " (" << block->mFileType << ") at index " << block->mIndexLocation << " DS: " << data_size << LL_ENDL;
-				LL_WARNS("VFS") << "Length: " << block->mLength << "\tLocation: " << block->mLocation << "\tSize: " << block->mSize << LL_ENDL;
-				LL_WARNS("VFS") << "File has bad data - VFS removed" << LL_ENDL;
-
-				delete block;
-
-				unlockAndClose( mIndexFP );
-				mIndexFP = NULL;
-				LLFile::remove( mIndexFilename );
-
-				unlockAndClose( mDataFP );
-				mDataFP = NULL;
-				LLFile::remove( mDataFilename );
-
-				LL_WARNS("VFS") << "Deleted corrupt VFS files " 
-					<< mDataFilename 
-					<< " and "
-					<< mIndexFilename
-					<< LL_ENDL;
-
-				mValid = VFSVALID_BAD_CORRUPT;
-				return;
-			}
-			else
-			{
-				// this is a null or bad entry, skip it
-				mIndexHoles.push_back(buf_offset);
-    
-				delete block;
-			}
-    
-			buf_offset += LLVFSFileBlock::SERIAL_SIZE;
-		}
-
-		std::sort(
-			files_by_loc.begin(),
-			files_by_loc.end(),
-			LLVFSFileBlock::locationSortPredicate);
-
-		// There are 3 cases that have to be considered.
-		// 1. No blocks
-		// 2. One block.
-		// 3. Two or more blocks.
-		if (!files_by_loc.empty())
-		{
-			// cur walks through the list.
-			std::vector<LLVFSFileBlock*>::iterator cur = files_by_loc.begin();
-			std::vector<LLVFSFileBlock*>::iterator end = files_by_loc.end();
-			LLVFSFileBlock* last_file_block = *cur;
-			
-			// Check to see if there is an empty space before the first file.
-			if (last_file_block->mLocation > 0)
-			{
-				// If so, create a free block.
-				addFreeBlock(new LLVFSBlock(0, last_file_block->mLocation));
-			}
-
-			// Walk through the 2nd+ block.  If there is a free space
-			// between cur_file_block and last_file_block, add it to
-			// the free space collection.  This block will not need to
-			// run in the case there is only one entry in the VFS.
-			++cur;
-			while( cur != end )
-			{
-				LLVFSFileBlock* cur_file_block = *cur;
-
-				// Dupe check on the block
-				if (cur_file_block->mLocation == last_file_block->mLocation
-					&& cur_file_block->mLength == last_file_block->mLength)
-				{
-					LL_WARNS("VFS") << "VFS: removing duplicate entry"
-						<< " at " << cur_file_block->mLocation 
-						<< " length " << cur_file_block->mLength 
-						<< " size " << cur_file_block->mSize
-						<< " ID " << cur_file_block->mFileID 
-						<< " type " << cur_file_block->mFileType 
-						<< LL_ENDL;
-
-					// Duplicate entries.  Nuke them both for safety.
-					mFileBlocks.erase(*cur_file_block);	// remove ID/type entry
-					if (cur_file_block->mLength > 0)
-					{
-						// convert to hole
-						addFreeBlock(
-							new LLVFSBlock(
-								cur_file_block->mLocation,
-								cur_file_block->mLength));
-					}
-					lockData();						// needed for sync()
-					sync(cur_file_block, TRUE);		// remove first on disk
-					sync(last_file_block, TRUE);	// remove last on disk
-					unlockData();					// needed for sync()
-					last_file_block = cur_file_block;
-					++cur;
-					continue;
-				}
-
-				// Figure out where the last block ended.
-				S32 loc = last_file_block->mLocation+last_file_block->mLength;
-
-				// Figure out how much space there is between where
-				// the last block ended and this block begins.
-				S32 length = cur_file_block->mLocation - loc;
-    
-				// Check for more errors...  Seeing if the current
-				// entry and the last entry make sense together.
-				if (length < 0 || loc < 0 || (U32)loc > data_size)
-				{
-					// Invalid VFS
-					unlockAndClose( mIndexFP );
-					mIndexFP = NULL;
-					LLFile::remove( mIndexFilename );
-
-					unlockAndClose( mDataFP );
-					mDataFP = NULL;
-					LLFile::remove( mDataFilename );
-
-					LL_WARNS("VFS") << "VFS: overlapping entries"
-						<< " at " << cur_file_block->mLocation 
-						<< " length " << cur_file_block->mLength 
-						<< " ID " << cur_file_block->mFileID 
-						<< " type " << cur_file_block->mFileType 
-						<< LL_ENDL;
-
-					LL_WARNS("VFS") << "Deleted corrupt VFS files " 
-						<< mDataFilename 
-						<< " and "
-						<< mIndexFilename
-						<< LL_ENDL;
-
-					mValid = VFSVALID_BAD_CORRUPT;
-					return;
-				}
-
-				// we don't want to add empty blocks to the list...
-				if (length > 0)
-				{
-					addFreeBlock(new LLVFSBlock(loc, length));
-				}
-				last_file_block = cur_file_block;
-				++cur;
-			}
-    
-			// also note any empty space at the end
-			U32 loc = last_file_block->mLocation + last_file_block->mLength;
-			if (loc < data_size)
-			{
-				addFreeBlock(new LLVFSBlock(loc, data_size - loc));
-			}
-		}
-		else // There where no blocks in the file.
-		{
-			addFreeBlock(new LLVFSBlock(0, data_size));
-		}
-	}
-	else	// Pre-existing index file wasn't opened
-	{
-		if (mReadOnly)
-		{
-			LL_WARNS("VFS") << "Can't find " << mIndexFilename << " to open read-only VFS" << LL_ENDL;
-			mValid = VFSVALID_BAD_CANNOT_OPEN_READONLY;
-			return;
-		}
-    
-	
-		mIndexFP = openAndLock(mIndexFilename, "w+b", FALSE);
-		if (!mIndexFP)
-		{
-			LL_WARNS("VFS") << "Couldn't open an index file for the VFS, probably a sharing violation!" << LL_ENDL;
-
-			unlockAndClose( mDataFP );
-			mDataFP = NULL;
-			LLFile::remove( mDataFilename );
-			
-			mValid = VFSVALID_BAD_CANNOT_CREATE;
-			return;
-		}
-	
-		// no index file, start from scratch w/ 1GB allocation
-		LLVFSBlock *first_block = new LLVFSBlock(0, data_size ? data_size : 0x40000000);
-		addFreeBlock(first_block);
-	}
-
-	// Open marker file to look for bad shutdowns
-	if (!mReadOnly && mRemoveAfterCrash)
-	{
-		std::string marker = mDataFilename + ".open";
-		LLFILE* marker_fp = LLFile::fopen(marker, "w");	/* Flawfinder: ignore */
-		if (marker_fp)
-		{
-			fclose(marker_fp);
-			marker_fp = NULL;
-		}
-	}
-
-	LL_INFOS("VFS") << "Using VFS index file " << mIndexFilename << LL_ENDL;
-	LL_INFOS("VFS") << "Using VFS data file " << mDataFilename << LL_ENDL;
-
-	mValid = VFSVALID_OK;
-}
-    
-LLVFS::~LLVFS()
-{
-	if (mDataMutex->isLocked())
-	{
-		LL_ERRS("VFS") << "LLVFS destroyed with mutex locked" << LL_ENDL;
-	}
-	
-	unlockAndClose(mIndexFP);
-	mIndexFP = NULL;
-
-	fileblock_map::const_iterator it;
-	for (it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-	{
-		delete (*it).second;
-	}
-	mFileBlocks.clear();
-	
-	mFreeBlocksByLength.clear();
-
-	for_each(mFreeBlocksByLocation.begin(), mFreeBlocksByLocation.end(), DeletePairedPointer());
-	mFreeBlocksByLocation.clear();
-    
-	unlockAndClose(mDataFP);
-	mDataFP = NULL;
-    
-	// Remove marker file
-	if (!mReadOnly && mRemoveAfterCrash)
-	{
-		std::string marker = mDataFilename + ".open";
-		LLFile::remove(marker);
-	}
-
-	delete mDataMutex;
-}
-
-
-// Use this function normally to create LLVFS files.  
-// Will append digits to the end of the filename with multiple re-trys
-// static 
-LLVFS * LLVFS::createLLVFS(const std::string& index_filename, 
-		const std::string& data_filename, 
-		const BOOL read_only, 
-		const U32 presize, 
-		const BOOL remove_after_crash)
-{
-	LLVFS * new_vfs = new LLVFS(index_filename, data_filename, read_only, presize, remove_after_crash);
-
-	if( !new_vfs->isValid() )
-	{	// First name failed, retry with new names
-		std::string retry_vfs_index_name;
-		std::string retry_vfs_data_name;
-		S32 count = 0;
-		while (!new_vfs->isValid() &&
-				count < 256)
-		{	// Append '.<number>' to end of filenames
-			retry_vfs_index_name = index_filename + llformat(".%u",count);
-			retry_vfs_data_name = data_filename + llformat(".%u", count);
-
-			delete new_vfs;	// Delete bad VFS and try again
-			new_vfs = new LLVFS(retry_vfs_index_name, retry_vfs_data_name, read_only, presize, remove_after_crash);
-
-			count++;
-		}
-	}
-
-	if( !new_vfs->isValid() )
-	{
-		delete new_vfs;		// Delete bad VFS
-		new_vfs = NULL;		// Total failure
-	}
-
-	return new_vfs;
-}
-
-
-
-void LLVFS::presizeDataFile(const U32 size)
-{
-	if (!mDataFP)
-	{
-		LL_ERRS() << "LLVFS::presizeDataFile() with no data file open" << LL_ENDL;
-		return;
-	}
-
-	// we're creating this file for the first time, size it
-	fseek(mDataFP, size-1, SEEK_SET);
-	S32 tmp = 0;
-	tmp = (S32)fwrite(&tmp, 1, 1, mDataFP);
-	// fflush(mDataFP);
-
-	// also remove any index, since this vfs is now blank
-	LLFile::remove(mIndexFilename);
-
-	if (tmp)
-	{
-		LL_INFOS() << "Pre-sized VFS data file to " << ftell(mDataFP) << " bytes" << LL_ENDL;
-	}
-	else
-	{
-		LL_WARNS() << "Failed to pre-size VFS data file" << LL_ENDL;
-	}
-}
-
-BOOL LLVFS::getExists(const LLUUID &file_id, const LLAssetType::EType file_type)
-{
-	LLVFSFileBlock *block = NULL;
-		
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-
-	lockData();
-	
-	LLVFSFileSpecifier spec(file_id, file_type);
-	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		block = (*it).second;
-		block->mAccessTime = (U32)time(NULL);
-	}
-
-	BOOL res = (block && block->mLength > 0) ? TRUE : FALSE;
-	
-	unlockData();
-	
-	return res;
-}
-    
-S32	 LLVFS::getSize(const LLUUID &file_id, const LLAssetType::EType file_type)
-{
-	S32 size = 0;
-	
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-
-	}
-
-	lockData();
-	
-	LLVFSFileSpecifier spec(file_id, file_type);
-	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *block = (*it).second;
-
-		block->mAccessTime = (U32)time(NULL);
-		size = block->mSize;
-	}
-
-	unlockData();
-	
-	return size;
-}
-    
-S32  LLVFS::getMaxSize(const LLUUID &file_id, const LLAssetType::EType file_type)
-{
-	S32 size = 0;
-	
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-
-	lockData();
-	
-	LLVFSFileSpecifier spec(file_id, file_type);
-	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *block = (*it).second;
-
-		block->mAccessTime = (U32)time(NULL);
-		size = block->mLength;
-	}
-
-	unlockData();
-
-	return size;
-}
-
-BOOL LLVFS::checkAvailable(S32 max_size)
-{
-	lockData();
-	
-	blocks_length_map_t::iterator iter = mFreeBlocksByLength.lower_bound(max_size); // first entry >= size
-	const BOOL res(iter == mFreeBlocksByLength.end() ? FALSE : TRUE);
-
-	unlockData();
-	
-	return res;
-}
-
-BOOL LLVFS::setMaxSize(const LLUUID &file_id, const LLAssetType::EType file_type, S32 max_size)
-{
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-	if (mReadOnly)
-	{
-		LL_ERRS() << "Attempt to write to read-only VFS" << LL_ENDL;
-	}
-	if (max_size <= 0)
-	{
-		LL_WARNS() << "VFS: Attempt to assign size " << max_size << " to vfile " << file_id << LL_ENDL;
-		return FALSE;
-	}
-
-	lockData();
-	
-	LLVFSFileSpecifier spec(file_id, file_type);
-	LLVFSFileBlock *block = NULL;
-	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		block = (*it).second;
-	}
-    
-	// round all sizes upward to KB increments
-	// SJB: Need to not round for the new texture-pipeline code so we know the correct
-	//      max file size. Need to investigate the potential problems with this...
-	if (file_type != LLAssetType::AT_TEXTURE)
-	{
-		if (max_size & FILE_BLOCK_MASK)
-		{
-			max_size += FILE_BLOCK_MASK;
-			max_size &= ~FILE_BLOCK_MASK;
-		}
-    }
-	
-	if (block && block->mLength > 0)
-	{    
-		block->mAccessTime = (U32)time(NULL);
-    
-		if (max_size == block->mLength)
-		{
-			unlockData();
-			return TRUE;
-		}
-		else if (max_size < block->mLength)
-		{
-			// this file is shrinking
-			LLVFSBlock *free_block = new LLVFSBlock(block->mLocation + max_size, block->mLength - max_size);
-
-			addFreeBlock(free_block);
-    
-			block->mLength = max_size;
-    
-			if (block->mLength < block->mSize)
-			{
-				// JC: Was a warning, but Ian says it's bad.
-				LL_ERRS() << "Truncating virtual file " << file_id << " to " << block->mLength << " bytes" << LL_ENDL;
-				block->mSize = block->mLength;
-			}
-    
-			sync(block);
-			//mergeFreeBlocks();
-
-			unlockData();
-			return TRUE;
-		}
-		else if (max_size > block->mLength)
-		{
-			// this file is growing
-			// first check for an adjacent free block to grow into
-			S32 size_increase = max_size - block->mLength;
-
-			// Find the first free block with and addres > block->mLocation
-			LLVFSBlock *free_block;
-			blocks_location_map_t::iterator iter = mFreeBlocksByLocation.upper_bound(block->mLocation);
-			if (iter != mFreeBlocksByLocation.end())
-			{
-				free_block = iter->second;
-			
-				if (free_block->mLocation == block->mLocation + block->mLength &&
-					free_block->mLength >= size_increase)
-				{
-					// this free block is at the end of the file and is large enough
-
-					// Must call useFreeSpace before sync(), as sync()
-					// unlocks data structures.
-					useFreeSpace(free_block, size_increase);
-					block->mLength += size_increase;
-					sync(block);
-
-					unlockData();
-					return TRUE;
-				}
-			}
-			
-			// no adjecent free block, find one in the list
-			free_block = findFreeBlock(max_size, block);
-    
-			if (free_block)
-			{
-				// Save location where data is going, useFreeSpace will move free_block->mLocation;
-				U32 new_data_location = free_block->mLocation;
-
-				//mark the free block as used so it does not
-				//interfere with other operations such as addFreeBlock
-				useFreeSpace(free_block, max_size);		// useFreeSpace takes ownership (and may delete) free_block
-
-				if (block->mLength > 0)
-				{
-					// create a new free block where this file used to be
-					LLVFSBlock *new_free_block = new LLVFSBlock(block->mLocation, block->mLength);
-
-					addFreeBlock(new_free_block);
-					
-					if (block->mSize > 0)
-					{
-						// move the file into the new block
-						std::vector<U8> buffer(block->mSize);
-						fseek(mDataFP, block->mLocation, SEEK_SET);
-						if (fread(&buffer[0], block->mSize, 1, mDataFP) == 1)
-						{
-							fseek(mDataFP, new_data_location, SEEK_SET);
-							if (fwrite(&buffer[0], block->mSize, 1, mDataFP) != 1)
-							{
-								LL_WARNS() << "Short write" << LL_ENDL;
-							}
-						} else {
-							LL_WARNS() << "Short read" << LL_ENDL;
-						}
-					}
-				}
-    
-				block->mLocation = new_data_location;
-    
-				block->mLength = max_size;
-
-
-				sync(block);
-
-				unlockData();
-				return TRUE;
-			}
-			else
-			{
-				LL_WARNS() << "VFS: No space (" << max_size << ") to resize existing vfile " << file_id << LL_ENDL;
-				//dumpMap();
-				unlockData();
-				dumpStatistics();
-				return FALSE;
-			}
-		}
-	}
-	else
-	{
-		// find a free block in the list
-		LLVFSBlock *free_block = findFreeBlock(max_size);
-    
-		if (free_block)
-		{        
-			if (block)
-			{
-				block->mLocation = free_block->mLocation;
-				block->mLength = max_size;
-			}
-			else
-			{
-				// this file doesn't exist, create it
-				block = new LLVFSFileBlock(file_id, file_type, free_block->mLocation, max_size);
-				mFileBlocks.insert(fileblock_map::value_type(spec, block));
-			}
-
-			// Must call useFreeSpace before sync(), as sync()
-			// unlocks data structures.
-			useFreeSpace(free_block, max_size);
-			block->mAccessTime = (U32)time(NULL);
-
-			sync(block);
-		}
-		else
-		{
-			LL_WARNS() << "VFS: No space (" << max_size << ") for new virtual file " << file_id << LL_ENDL;
-			//dumpMap();
-			unlockData();
-			dumpStatistics();
-			return FALSE;
-		}
-	}
-	unlockData();
-	return TRUE;
-}
-
-
-// WARNING: HERE BE DRAGONS!
-// rename is the weirdest VFS op, because the file moves but the locks don't!
-void LLVFS::renameFile(const LLUUID &file_id, const LLAssetType::EType file_type,
-					   const LLUUID &new_id, const LLAssetType::EType &new_type)
-{
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-	if (mReadOnly)
-	{
-		LL_ERRS() << "Attempt to write to read-only VFS" << LL_ENDL;
-	}
-
-	lockData();
-	
-	LLVFSFileSpecifier new_spec(new_id, new_type);
-	LLVFSFileSpecifier old_spec(file_id, file_type);
-	
-	fileblock_map::iterator it = mFileBlocks.find(old_spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *src_block = (*it).second;
-
-		// this will purge the data but leave the file block in place, w/ locks, if any
-		// WAS: removeFile(new_id, new_type); NOW uses removeFileBlock() to avoid mutex lock recursion
-		fileblock_map::iterator new_it = mFileBlocks.find(new_spec);
-		if (new_it != mFileBlocks.end())
-		{
-			LLVFSFileBlock *new_block = (*new_it).second;
-			removeFileBlock(new_block);
-		}
-		
-		// if there's something in the target location, remove it but inherit its locks
-		it = mFileBlocks.find(new_spec);
-		if (it != mFileBlocks.end())
-		{
-			LLVFSFileBlock *dest_block = (*it).second;
-
-			for (S32 i = 0; i < (S32)VFSLOCK_COUNT; i++)
-			{
-				if(dest_block->mLocks[i])
-				{
-					LL_ERRS() << "Renaming VFS block to a locked file." << LL_ENDL;
-				}
-				dest_block->mLocks[i] = src_block->mLocks[i];
-			}
-			
-			mFileBlocks.erase(new_spec);
-			delete dest_block;
-		}
-
-		src_block->mFileID = new_id;
-		src_block->mFileType = new_type;
-		src_block->mAccessTime = (U32)time(NULL);
-   
-		mFileBlocks.erase(old_spec);
-		mFileBlocks.insert(fileblock_map::value_type(new_spec, src_block));
-
-		sync(src_block);
-	}
-	else
-	{
-		LL_WARNS() << "VFS: Attempt to rename nonexistent vfile " << file_id << ":" << file_type << LL_ENDL;
-	}
-	unlockData();
-}
-
-// mDataMutex must be LOCKED before calling this
-void LLVFS::removeFileBlock(LLVFSFileBlock *fileblock)
-{
-	// convert this into an unsaved, dummy fileblock to preserve locks
-	// a more rubust solution would store the locks in a seperate data structure
-	sync(fileblock, TRUE);
-	
-	if (fileblock->mLength > 0)
-	{
-		// turn this file into an empty block
-		LLVFSBlock *free_block = new LLVFSBlock(fileblock->mLocation, fileblock->mLength);
-		
-		addFreeBlock(free_block);
-	}
-	
-	fileblock->mLocation = 0;
-	fileblock->mSize = 0;
-	fileblock->mLength = BLOCK_LENGTH_INVALID;
-	fileblock->mIndexLocation = -1;
-
-	//mergeFreeBlocks();
-}
-
-void LLVFS::removeFile(const LLUUID &file_id, const LLAssetType::EType file_type)
-{
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-	if (mReadOnly)
-	{
-		LL_ERRS() << "Attempt to write to read-only VFS" << LL_ENDL;
-	}
-
-    lockData();
-	
-	LLVFSFileSpecifier spec(file_id, file_type);
-	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *block = (*it).second;
-		removeFileBlock(block);
-	}
-	else
-	{
-		LL_WARNS() << "VFS: attempting to remove nonexistent file " << file_id << " type " << file_type << LL_ENDL;
-	}
-
-	unlockData();
-}
-    
-    
-S32 LLVFS::getData(const LLUUID &file_id, const LLAssetType::EType file_type, U8 *buffer, S32 location, S32 length)
-{
-	S32 bytesread = 0;
-	
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-	llassert(location >= 0);
-	llassert(length >= 0);
-
-	BOOL do_read = FALSE;
-	
-    lockData();
-	
-	LLVFSFileSpecifier spec(file_id, file_type);
-	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *block = (*it).second;
-
-		block->mAccessTime = (U32)time(NULL);
-    
-		if (location > block->mSize)
-		{
-			LL_WARNS() << "VFS: Attempt to read location " << location << " in file " << file_id << " of length " << block->mSize << LL_ENDL;
-		}
-		else
-		{
-			if (length > block->mSize - location)
-			{
-				length = block->mSize - location;
-			}
-			location += block->mLocation;
-			do_read = TRUE;
-		}
-	}
-
-	if (do_read)
-	{
-		fseek(mDataFP, location, SEEK_SET);
-		bytesread = (S32)fread(buffer, 1, length, mDataFP);
-	}
-	
-	unlockData();
-
-	return bytesread;
-}
-    
-S32 LLVFS::storeData(const LLUUID &file_id, const LLAssetType::EType file_type, const U8 *buffer, S32 location, S32 length)
-{
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-	if (mReadOnly)
-	{
-		LL_ERRS() << "Attempt to write to read-only VFS" << LL_ENDL;
-	}
-    
-	llassert(length > 0);
-
-    lockData();
-    
-	LLVFSFileSpecifier spec(file_id, file_type);
-	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *block = (*it).second;
-
-		S32 in_loc = location;
-		if (location == -1)
-		{
-			location = block->mSize;
-		}
-		llassert(location >= 0);
-		
-		block->mAccessTime = (U32)time(NULL);
-    
-		if (block->mLength == BLOCK_LENGTH_INVALID)
-		{
-			// Block was removed, ignore write
-			LL_WARNS() << "VFS: Attempt to write to invalid block"
-					<< " in file " << file_id 
-					<< " location: " << in_loc
-					<< " bytes: " << length
-					<< LL_ENDL;
-			unlockData();
-			return length;
-		}
-		else if (location > block->mLength)
-		{
-			LL_WARNS() << "VFS: Attempt to write to location " << location 
-					<< " in file " << file_id 
-					<< " type " << S32(file_type)
-					<< " of size " << block->mSize
-					<< " block length " << block->mLength
-					<< LL_ENDL;
-			unlockData();
-			return length;
-		}
-		else
-		{
-			if (length > block->mLength - location )
-			{
-				LL_WARNS() << "VFS: Truncating write to virtual file " << file_id << " type " << S32(file_type) << LL_ENDL;
-				length = block->mLength - location;
-			}
-			U32 file_location = location + block->mLocation;
-			
-			fseek(mDataFP, file_location, SEEK_SET);
-			S32 write_len = (S32)fwrite(buffer, 1, length, mDataFP);
-			if (write_len != length)
-			{
-				LL_WARNS() << llformat("VFS Write Error: %d != %d",write_len,length) << LL_ENDL;
-			}
-			// fflush(mDataFP);
-			
-			if (location + length > block->mSize)
-			{
-				block->mSize = location + write_len;
-				sync(block);
-			}
-			unlockData();
-			
-			return write_len;
-		}
-	}
-	else
-	{
-		unlockData();
-		return 0;
-	}
-}
- 
-void LLVFS::incLock(const LLUUID &file_id, const LLAssetType::EType file_type, EVFSLock lock)
-{
-	lockData();
-
-	LLVFSFileSpecifier spec(file_id, file_type);
-	LLVFSFileBlock *block;
-	
- 	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		block = (*it).second;
-	}
-	else
-	{
-		// Create a dummy block which isn't saved
-		block = new LLVFSFileBlock(file_id, file_type, 0, BLOCK_LENGTH_INVALID);
-    	block->mAccessTime = (U32)time(NULL);
-		mFileBlocks.insert(fileblock_map::value_type(spec, block));
-	}
-
-	block->mLocks[lock]++;
-	mLockCounts[lock]++;
-	
-	unlockData();
-}
-
-void LLVFS::decLock(const LLUUID &file_id, const LLAssetType::EType file_type, EVFSLock lock)
-{
-	lockData();
-
-	LLVFSFileSpecifier spec(file_id, file_type);
- 	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *block = (*it).second;
-
-		if (block->mLocks[lock] > 0)
-		{
-			block->mLocks[lock]--;
-		}
-		else
-		{
-			LL_WARNS() << "VFS: Decrementing zero-value lock " << lock << LL_ENDL;
-		}
-		mLockCounts[lock]--;
-	}
-
-	unlockData();
-}
-
-BOOL LLVFS::isLocked(const LLUUID &file_id, const LLAssetType::EType file_type, EVFSLock lock)
-{
-	lockData();
-	
-	BOOL res = FALSE;
-	
-	LLVFSFileSpecifier spec(file_id, file_type);
- 	fileblock_map::iterator it = mFileBlocks.find(spec);
-	if (it != mFileBlocks.end())
-	{
-		LLVFSFileBlock *block = (*it).second;
-		res = (block->mLocks[lock] > 0);
-	}
-
-	unlockData();
-
-	return res;
-}
-
-//============================================================================
-// protected
-//============================================================================
-
-void LLVFS::eraseBlockLength(LLVFSBlock *block)
-{
-	// find the corresponding map entry in the length map and erase it
-	S32 length = block->mLength;
-	blocks_length_map_t::iterator iter = mFreeBlocksByLength.lower_bound(length);
-	blocks_length_map_t::iterator end = mFreeBlocksByLength.end();
-	bool found_block = false;
-	while(iter != end)
-	{
-		LLVFSBlock *tblock = iter->second;
-		llassert(tblock->mLength == length); // there had -better- be an entry with our length!
-		if (tblock == block)
-		{
-			mFreeBlocksByLength.erase(iter);
-			found_block = true;
-			break;
-		}
-		++iter;
-	}
-	if(!found_block)
-	{
-		LL_ERRS() << "eraseBlock could not find block" << LL_ENDL;
-	}
-}
-
-
-// Remove block from both free lists (by location and by length).
-void LLVFS::eraseBlock(LLVFSBlock *block)
-{
-	eraseBlockLength(block);
-	// find the corresponding map entry in the location map and erase it	
-	U32 location = block->mLocation;
-	llverify(mFreeBlocksByLocation.erase(location) == 1); // we should only have one entry per location.
-}
-
-
-// Add the region specified by block location and length to the free lists.
-// Also incrementally defragment by merging with previous and next free blocks.
-void LLVFS::addFreeBlock(LLVFSBlock *block)
-{
-#if LL_DEBUG
-	size_t dbgcount = mFreeBlocksByLocation.count(block->mLocation);
-	if(dbgcount > 0)
-	{
-		LL_ERRS() << "addFreeBlock called with block already in list" << LL_ENDL;
-	}
-#endif
-
-	// Get a pointer to the next free block (by location).
-	blocks_location_map_t::iterator next_free_it = mFreeBlocksByLocation.lower_bound(block->mLocation);
-
-	// We can merge with previous if it ends at our requested location.
-	LLVFSBlock* prev_block = NULL;
-	bool merge_prev = false;
-	if (next_free_it != mFreeBlocksByLocation.begin())
-	{
-		blocks_location_map_t::iterator prev_free_it = next_free_it;
-		--prev_free_it;
-		prev_block = prev_free_it->second;
-		merge_prev = (prev_block->mLocation + prev_block->mLength == block->mLocation);
-	}
-
-	// We can merge with next if our block ends at the next block's location.
-	LLVFSBlock* next_block = NULL;
-	bool merge_next = false;
-	if (next_free_it != mFreeBlocksByLocation.end())
-	{
-		next_block = next_free_it->second;
-		merge_next = (block->mLocation + block->mLength == next_block->mLocation);
-	}
-
-	if (merge_prev && merge_next)
-	{
-		// LL_INFOS() << "VFS merge BOTH" << LL_ENDL;
-		// Previous block is changing length (a lot), so only need to update length map.
-		// Next block is going away completely. JC
-		eraseBlockLength(prev_block);
-		eraseBlock(next_block);
-		prev_block->mLength += block->mLength + next_block->mLength;
-		mFreeBlocksByLength.insert(blocks_length_map_t::value_type(prev_block->mLength, prev_block));
-		delete block;
-		block = NULL;
-		delete next_block;
-		next_block = NULL;
-	}
-	else if (merge_prev)
-	{
-		// LL_INFOS() << "VFS merge previous" << LL_ENDL;
-		// Previous block is maintaining location, only changing length,
-		// therefore only need to update the length map. JC
-		eraseBlockLength(prev_block);
-		prev_block->mLength += block->mLength;
-		mFreeBlocksByLength.insert(blocks_length_map_t::value_type(prev_block->mLength, prev_block)); // multimap insert
-		delete block;
-		block = NULL;
-	}
-	else if (merge_next)
-	{
-		// LL_INFOS() << "VFS merge next" << LL_ENDL;
-		// Next block is changing both location and length,
-		// so both free lists must update. JC
-		eraseBlock(next_block);
-		next_block->mLocation = block->mLocation;
-		next_block->mLength += block->mLength;
-		// Don't hint here, next_free_it iterator may be invalid.
-		mFreeBlocksByLocation.insert(blocks_location_map_t::value_type(next_block->mLocation, next_block)); // multimap insert
-		mFreeBlocksByLength.insert(blocks_length_map_t::value_type(next_block->mLength, next_block)); // multimap insert			
-		delete block;
-		block = NULL;
-	}
-	else
-	{
-		// Can't merge with other free blocks.
-		// Hint that insert should go near next_free_it.
- 		mFreeBlocksByLocation.insert(next_free_it, blocks_location_map_t::value_type(block->mLocation, block)); // multimap insert
- 		mFreeBlocksByLength.insert(blocks_length_map_t::value_type(block->mLength, block)); // multimap insert
-	}
-}
-
-// Superceeded by new addFreeBlock which does incremental free space merging.
-// Incremental is faster overall.
-//void LLVFS::mergeFreeBlocks()
-//{
-// 	if (!isValid())
-// 	{
-// 		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-// 	}
-// 	// TODO: could we optimize this with hints from the calling code?
-// 	blocks_location_map_t::iterator iter = mFreeBlocksByLocation.begin();	
-// 	blocks_location_map_t::iterator end = mFreeBlocksByLocation.end();	
-// 	LLVFSBlock *first_block = iter->second;
-// 	while(iter != end)
-// 	{
-// 		blocks_location_map_t::iterator first_iter = iter; // save for if we do a merge
-// 		if (++iter == end)
-// 			break;
-// 		LLVFSBlock *second_block = iter->second;
-// 		if (first_block->mLocation + first_block->mLength == second_block->mLocation)
-// 		{
-// 			// remove the first block from the length map
-// 			eraseBlockLength(first_block);
-// 			// merge first_block with second_block, since they're adjacent
-// 			first_block->mLength += second_block->mLength;
-// 			// add the first block to the length map (with the new size)
-// 			mFreeBlocksByLength.insert(blocks_length_map_t::value_type(first_block->mLength, first_block)); // multimap insert
-//
-// 			// erase and delete the second block
-// 			eraseBlock(second_block);
-// 			delete second_block;
-//
-// 			// reset iterator
-// 			iter = first_iter; // haven't changed first_block, so corresponding iterator is still valid
-// 			end = mFreeBlocksByLocation.end();
-// 		}
-// 		first_block = second_block;
-// 	}
-//}
-	
-// length bytes from free_block are going to be used (so they are no longer free)
-void LLVFS::useFreeSpace(LLVFSBlock *free_block, S32 length)
-{
-	if (free_block->mLength == length)
-	{
-		eraseBlock(free_block);
-		delete free_block;
-	}
-	else
-	{
-		eraseBlock(free_block);
-  		
-		free_block->mLocation += length;
-		free_block->mLength -= length;
-
-		addFreeBlock(free_block);
-	}
-}
-
-// NOTE! mDataMutex must be LOCKED before calling this
-// sync this index entry out to the index file
-// we need to do this constantly to avoid corruption on viewer crash
-void LLVFS::sync(LLVFSFileBlock *block, BOOL remove)
-{
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-	if (mReadOnly)
-	{
-		LL_WARNS() << "Attempt to sync read-only VFS" << LL_ENDL;
-		return;
-	}
-	if (block->mLength == BLOCK_LENGTH_INVALID)
-	{
-		// This is a dummy file, don't save
-		return;
-	}
-	if (block->mLength == 0)
-	{
-		LL_ERRS() << "VFS syncing zero-length block" << LL_ENDL;
-	}
-
-    BOOL set_index_to_end = FALSE;
-	long seek_pos = block->mIndexLocation;
-		
-	if (-1 == seek_pos)
-	{
-		if (!mIndexHoles.empty())
-		{
-			seek_pos = mIndexHoles.front();
-			mIndexHoles.pop_front();
-		}
-		else
-		{
-			set_index_to_end = TRUE;
-		}
-	}
-
-    if (set_index_to_end)
-	{
-		// Need fseek/ftell to update the seek_pos and hence data
-		// structures, so can't unlockData() before this.
-		fseek(mIndexFP, 0, SEEK_END);
-		seek_pos = ftell(mIndexFP);
-	}
-	    
-	block->mIndexLocation = seek_pos;
-	if (remove)
-	{
-		mIndexHoles.push_back(seek_pos);
-	}
-
-	U8 buffer[LLVFSFileBlock::SERIAL_SIZE];
-	if (remove)
-	{
-		memset(buffer, 0, LLVFSFileBlock::SERIAL_SIZE);
-	}
-	else
-	{
-		block->serialize(buffer);
-	}
-
-	// If set_index_to_end, file pointer is already at seek_pos
-	// and we don't need to do anything.  Only seek if not at end.
-	if (!set_index_to_end)
-	{
-		fseek(mIndexFP, seek_pos, SEEK_SET);
-	}
-
-	if (fwrite(buffer, LLVFSFileBlock::SERIAL_SIZE, 1, mIndexFP) != 1)
-	{
-		LL_WARNS() << "Short write" << LL_ENDL;
-	}
-
-	// *NOTE:  Why was this commented out?
-	// fflush(mIndexFP);
-	
-	return;
-}
-
-// mDataMutex must be LOCKED before calling this
-// Can initiate LRU-based file removal to make space.
-// The immune file block will not be removed.
-LLVFSBlock *LLVFS::findFreeBlock(S32 size, LLVFSFileBlock *immune)
-{
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-
-	LLVFSBlock *block = NULL;
-	BOOL have_lru_list = FALSE;
-	
-	typedef std::set<LLVFSFileBlock*, LLVFSFileBlock_less> lru_set;
-	lru_set lru_list;
-    
-	LLTimer timer;
-
-	while (! block)
-	{
-		// look for a suitable free block
-		blocks_length_map_t::iterator iter = mFreeBlocksByLength.lower_bound(size); // first entry >= size
-		if (iter != mFreeBlocksByLength.end())
-			block = iter->second;
-    	
-		// no large enough free blocks, time to clean out some junk
-		if (! block)
-		{
-			// create a list of files sorted by usage time
-			// this is far faster than sorting a linked list
-			if (! have_lru_list)
-			{
-				for (fileblock_map::iterator it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-				{
-					LLVFSFileBlock *tmp = (*it).second;
-
-					if (tmp != immune &&
-						tmp->mLength > 0 &&
-						! tmp->mLocks[VFSLOCK_READ] &&
-						! tmp->mLocks[VFSLOCK_APPEND] &&
-						! tmp->mLocks[VFSLOCK_OPEN])
-					{
-						lru_list.insert(tmp);
-					}
-				}
-				
-				have_lru_list = TRUE;
-			}
-
-			if (lru_list.size() == 0)
-			{
-				// No more files to delete, and still not enough room!
-				LL_WARNS() << "VFS: Can't make " << size << " bytes of free space in VFS, giving up" << LL_ENDL;
-				break;
-			}
-
-			// is the oldest file big enough?  (Should be about half the time)
-			lru_set::iterator it = lru_list.begin();
-			LLVFSFileBlock *file_block = *it;
-			if (file_block->mLength >= size && file_block != immune)
-			{
-				// ditch this file and look again for a free block - should find it
-				// TODO: it'll be faster just to assign the free block and break
-				LL_INFOS() << "LRU: Removing " << file_block->mFileID << ":" << file_block->mFileType << LL_ENDL;
-				lru_list.erase(it);
-				removeFileBlock(file_block);
-				file_block = NULL;
-				continue;
-			}
-
-			
-			LL_INFOS() << "VFS: LRU: Aggressive: " << (S32)lru_list.size() << " files remain" << LL_ENDL;
-			dumpLockCounts();
-			
-			// Now it's time to aggressively make more space
-			// Delete the oldest 5MB of the vfs or enough to hold the file, which ever is larger
-			// This may yield too much free space, but we'll use it up soon enough
-			U32 cleanup_target = (size > VFS_CLEANUP_SIZE) ? size : VFS_CLEANUP_SIZE;
-			U32 cleaned_up = 0;
-		   	for (it = lru_list.begin();
-				 it != lru_list.end() && cleaned_up < cleanup_target;
-				 )
-			{
-				file_block = *it;
-				
-				// TODO: it would be great to be able to batch all these sync() calls
-				// LL_INFOS() << "LRU2: Removing " << file_block->mFileID << ":" << file_block->mFileType << " last accessed" << file_block->mAccessTime << LL_ENDL;
-
-				cleaned_up += file_block->mLength;
-				lru_list.erase(it++);
-				removeFileBlock(file_block);
-				file_block = NULL;
-			}
-			//mergeFreeBlocks();
-		}
-	}
-    
-	F32 time = timer.getElapsedTimeF32();
-	if (time > 0.5f)
-	{
-		LL_WARNS() << "VFS: Spent " << time << " seconds in findFreeBlock!" << LL_ENDL;
-	}
-
-	return block;
-}
-
-//============================================================================
-// public
-//============================================================================
-
-void LLVFS::pokeFiles()
-{
-	if (!isValid())
-	{
-		LL_ERRS() << "Attempting to use invalid VFS!" << LL_ENDL;
-	}
-	U32 word;
-	
-	// only write data if we actually read 4 bytes
-	// otherwise we're writing garbage and screwing up the file
-	fseek(mDataFP, 0, SEEK_SET);
-	if (fread(&word, sizeof(word), 1, mDataFP) == 1)
-	{
-		fseek(mDataFP, 0, SEEK_SET);
-		if (fwrite(&word, sizeof(word), 1, mDataFP) != 1)
-		{
-			LL_WARNS() << "Could not write to data file" << LL_ENDL;
-		}
-		fflush(mDataFP);
-	}
-
-	fseek(mIndexFP, 0, SEEK_SET);
-	if (fread(&word, sizeof(word), 1, mIndexFP) == 1)
-	{
-		fseek(mIndexFP, 0, SEEK_SET);
-		if (fwrite(&word, sizeof(word), 1, mIndexFP) != 1)
-		{
-			LL_WARNS() << "Could not write to index file" << LL_ENDL;
-		}
-		fflush(mIndexFP);
-	}
-}
-
-    
-void LLVFS::dumpMap()
-{
-	LL_INFOS() << "Files:" << LL_ENDL;
-	for (fileblock_map::iterator it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-	{
-		LLVFSFileBlock *file_block = (*it).second;
-		LL_INFOS() << "Location: " << file_block->mLocation << "\tLength: " << file_block->mLength << "\t" << file_block->mFileID << "\t" << file_block->mFileType << LL_ENDL;
-	}
-    
-	LL_INFOS() << "Free Blocks:" << LL_ENDL;
-	for (blocks_location_map_t::iterator iter = mFreeBlocksByLocation.begin(),
-			 end = mFreeBlocksByLocation.end();
-		 iter != end; iter++)
-	{
-		LLVFSBlock *free_block = iter->second;
-		LL_INFOS() << "Location: " << free_block->mLocation << "\tLength: " << free_block->mLength << LL_ENDL;
-	}
-}
-    
-// verify that the index file contents match the in-memory file structure
-// Very slow, do not call routinely. JC
-void LLVFS::audit()
-{
-	// Lock the mutex through this whole function.
-	LLMutexLock lock_data(mDataMutex);
-	
-	fflush(mIndexFP);
-
-	fseek(mIndexFP, 0, SEEK_END);
-	size_t index_size = ftell(mIndexFP);
-	fseek(mIndexFP, 0, SEEK_SET);
-    
-	BOOL vfs_corrupt = FALSE;
-	
-	// since we take the address of element 0, we need to have at least one element.
-	std::vector<U8> buffer(llmax<size_t>(index_size,1U));
-
-	if (fread(&buffer[0], 1, index_size, mIndexFP) != index_size)
-	{
-		LL_WARNS() << "Index truncated" << LL_ENDL;
-		vfs_corrupt = TRUE;
-	}
-    
-	size_t buf_offset = 0;
-    
-	std::map<LLVFSFileSpecifier, LLVFSFileBlock*>	found_files;
-	U32 cur_time = (U32)time(NULL);
-
-	std::vector<LLVFSFileBlock*> audit_blocks;
-	while (!vfs_corrupt && buf_offset < index_size)
-	{
-		LLVFSFileBlock *block = new LLVFSFileBlock();
-		audit_blocks.push_back(block);
-		
-		block->deserialize(&buffer[buf_offset], (S32)buf_offset);
-		buf_offset += block->SERIAL_SIZE;
-    
-		// do sanity check on this block
-		if (block->mLength >= 0 &&
-			block->mSize >= 0 &&
-			block->mSize <= block->mLength &&
-			block->mFileType >= LLAssetType::AT_NONE &&
-			block->mFileType < LLAssetType::AT_COUNT &&
-			block->mAccessTime <= cur_time &&
-			block->mFileID != LLUUID::null)
-		{
-			if (mFileBlocks.find(*block) == mFileBlocks.end())
-			{
-				LL_WARNS() << "VFile " << block->mFileID << ":" << block->mFileType << " on disk, not in memory, loc " << block->mIndexLocation << LL_ENDL;
-			}
-			else if (found_files.find(*block) != found_files.end())
-			{
-				std::map<LLVFSFileSpecifier, LLVFSFileBlock*>::iterator it;
-				it = found_files.find(*block);
-				LLVFSFileBlock* dupe = it->second;
-				// try to keep data from being lost
-				unlockAndClose(mIndexFP);
-				mIndexFP = NULL;
-				unlockAndClose(mDataFP);
-				mDataFP = NULL;
-				LL_WARNS() << "VFS: Original block index " << block->mIndexLocation
-					<< " location " << block->mLocation 
-					<< " length " << block->mLength 
-					<< " size " << block->mSize 
-					<< " id " << block->mFileID
-					<< " type " << block->mFileType
-					<< LL_ENDL;
-				LL_WARNS() << "VFS: Duplicate block index " << dupe->mIndexLocation
-					<< " location " << dupe->mLocation 
-					<< " length " << dupe->mLength 
-					<< " size " << dupe->mSize 
-					<< " id " << dupe->mFileID
-					<< " type " << dupe->mFileType
-					<< LL_ENDL;
-				LL_WARNS() << "VFS: Index size " << index_size << LL_ENDL;
-				LL_WARNS() << "VFS: INDEX CORRUPT" << LL_ENDL;
-				vfs_corrupt = TRUE;
-				break;
-			}
-			else
-			{
-				found_files[*block] = block;
-			}
-		}
-		else
-		{
-			if (block->mLength)
-			{
-				LL_WARNS() << "VFile " << block->mFileID << ":" << block->mFileType << " corrupt on disk" << LL_ENDL;
-			}
-			// else this is just a hole
-		}
-	}
-    
-	if (!vfs_corrupt)
-	{
-		for (fileblock_map::iterator it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-		{
-			LLVFSFileBlock* block = (*it).second;
-
-			if (block->mSize > 0)
-			{
-				if (! found_files.count(*block))
-				{
-					LL_WARNS() << "VFile " << block->mFileID << ":" << block->mFileType << " in memory, not on disk, loc " << block->mIndexLocation<< LL_ENDL;
-					fseek(mIndexFP, block->mIndexLocation, SEEK_SET);
-					U8 buf[LLVFSFileBlock::SERIAL_SIZE];
-					if (fread(buf, LLVFSFileBlock::SERIAL_SIZE, 1, mIndexFP) != 1)
-					{
-						LL_WARNS() << "VFile " << block->mFileID
-								<< " gave short read" << LL_ENDL;
-					}
-    			
-					LLVFSFileBlock disk_block;
-					disk_block.deserialize(buf, block->mIndexLocation);
-				
-					LL_WARNS() << "Instead found " << disk_block.mFileID << ":" << block->mFileType << LL_ENDL;
-				}
-				else
-				{
-					block = found_files.find(*block)->second;
-					found_files.erase(*block);
-				}
-			}
-		}
-    
-		for (std::map<LLVFSFileSpecifier, LLVFSFileBlock*>::iterator iter = found_files.begin();
-			 iter != found_files.end(); iter++)
-		{
-			LLVFSFileBlock* block = iter->second;
-			LL_WARNS() << "VFile " << block->mFileID << ":" << block->mFileType << " szie:" << block->mSize << " leftover" << LL_ENDL;
-		}
-    
-		LL_INFOS() << "VFS: audit OK" << LL_ENDL;
-		// mutex released by LLMutexLock() destructor.
-	}
-
-	for_each(audit_blocks.begin(), audit_blocks.end(), DeletePointer());
-	audit_blocks.clear();
-}
-    
-    
-// quick check for uninitialized blocks
-// Slow, do not call in release.
-void LLVFS::checkMem()
-{
-	lockData();
-	
-	for (fileblock_map::iterator it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-	{
-		LLVFSFileBlock *block = (*it).second;
-		llassert(block->mFileType >= LLAssetType::AT_NONE &&
-				 block->mFileType < LLAssetType::AT_COUNT &&
-				 block->mFileID != LLUUID::null);
-    
-		for (std::deque<S32>::iterator iter = mIndexHoles.begin();
-			 iter != mIndexHoles.end(); ++iter)
-		{
-			S32 index_loc = *iter;
-			if (index_loc == block->mIndexLocation)
-			{
-				LL_WARNS() << "VFile block " << block->mFileID << ":" << block->mFileType << " is marked as a hole" << LL_ENDL;
-			}
-		}
-	}
-    
-	LL_INFOS() << "VFS: mem check OK" << LL_ENDL;
-
-	unlockData();
-}
-
-void LLVFS::dumpLockCounts()
-{
-	S32 i;
-	for (i = 0; i < VFSLOCK_COUNT; i++)
-	{
-		LL_INFOS() << "LockType: " << i << ": " << mLockCounts[i] << LL_ENDL;
-	}
-}
-
-void LLVFS::dumpStatistics()
-{
-	lockData();
-	
-	// Investigate file blocks.
-	std::map<S32, S32> size_counts;
-	std::map<U32, S32> location_counts;
-	std::map<LLAssetType::EType, std::pair<S32,S32> > filetype_counts;
-
-	S32 max_file_size = 0;
-	S32 total_file_size = 0;
-	S32 invalid_file_count = 0;
-	for (fileblock_map::iterator it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-	{
-		LLVFSFileBlock *file_block = (*it).second;
-		if (file_block->mLength == BLOCK_LENGTH_INVALID)
-		{
-			invalid_file_count++;
-		}
-		else if (file_block->mLength <= 0)
-		{
-			LL_INFOS() << "Bad file block at: " << file_block->mLocation << "\tLength: " << file_block->mLength << "\t" << file_block->mFileID << "\t" << file_block->mFileType << LL_ENDL;
-			size_counts[file_block->mLength]++;
-			location_counts[file_block->mLocation]++;
-		}
-		else
-		{
-			total_file_size += file_block->mLength;
-		}
-
-		if (file_block->mLength > max_file_size)
-		{
-			max_file_size = file_block->mLength;
-		}
-
-		filetype_counts[file_block->mFileType].first++;
-		filetype_counts[file_block->mFileType].second += file_block->mLength;
-	}
-    
-	for (std::map<S32,S32>::iterator it = size_counts.begin(); it != size_counts.end(); ++it)
-	{
-		S32 size = it->first;
-		S32 size_count = it->second;
-		LL_INFOS() << "Bad files size " << size << " count " << size_count << LL_ENDL;
-	}
-	for (std::map<U32,S32>::iterator it = location_counts.begin(); it != location_counts.end(); ++it)
-	{
-		U32 location = it->first;
-		S32 location_count = it->second;
-		LL_INFOS() << "Bad files location " << location << " count " << location_count << LL_ENDL;
-	}
-
-	// Investigate free list.
-	S32 max_free_size = 0;
-	S32 total_free_size = 0;
-	std::map<S32, S32> free_length_counts;
-	for (blocks_location_map_t::iterator iter = mFreeBlocksByLocation.begin(),
-			 end = mFreeBlocksByLocation.end();
-		 iter != end; iter++)
-	{
-		LLVFSBlock *free_block = iter->second;
-		if (free_block->mLength <= 0)
-		{
-			LL_INFOS() << "Bad free block at: " << free_block->mLocation << "\tLength: " << free_block->mLength << LL_ENDL;
-		}
-		else
-		{
-			LL_INFOS() << "Block: " << free_block->mLocation
-					<< "\tLength: " << free_block->mLength
-					<< "\tEnd: " << free_block->mLocation + free_block->mLength
-					<< LL_ENDL;
-			total_free_size += free_block->mLength;
-		}
-
-		if (free_block->mLength > max_free_size)
-		{
-			max_free_size = free_block->mLength;
-		}
-
-		free_length_counts[free_block->mLength]++;
-	}
-
-	// Dump histogram of free block sizes
-	for (std::map<S32,S32>::iterator it = free_length_counts.begin(); it != free_length_counts.end(); ++it)
-	{
-		LL_INFOS() << "Free length " << it->first << " count " << it->second << LL_ENDL;
-	}
-
-	LL_INFOS() << "Invalid blocks: " << invalid_file_count << LL_ENDL;
-	LL_INFOS() << "File blocks:    " << mFileBlocks.size() << LL_ENDL;
-
-	S32 length_list_count = (S32)mFreeBlocksByLength.size();
-	S32 location_list_count = (S32)mFreeBlocksByLocation.size();
-	if (length_list_count == location_list_count)
-	{
-		LL_INFOS() << "Free list lengths match, free blocks: " << location_list_count << LL_ENDL;
-	}
-	else
-	{
-		LL_WARNS() << "Free list lengths do not match!" << LL_ENDL;
-		LL_WARNS() << "By length: " << length_list_count << LL_ENDL;
-		LL_WARNS() << "By location: " << location_list_count << LL_ENDL;
-	}
-	LL_INFOS() << "Max file: " << max_file_size/1024 << "K" << LL_ENDL;
-	LL_INFOS() << "Max free: " << max_free_size/1024 << "K" << LL_ENDL;
-	LL_INFOS() << "Total file size: " << total_file_size/1024 << "K" << LL_ENDL;
-	LL_INFOS() << "Total free size: " << total_free_size/1024 << "K" << LL_ENDL;
-	LL_INFOS() << "Sum: " << (total_file_size + total_free_size) << " bytes" << LL_ENDL;
-	LL_INFOS() << llformat("%.0f%% full",((F32)(total_file_size)/(F32)(total_file_size+total_free_size))*100.f) << LL_ENDL;
-
-	LL_INFOS() << " " << LL_ENDL;
-	for (std::map<LLAssetType::EType, std::pair<S32,S32> >::iterator iter = filetype_counts.begin();
-		 iter != filetype_counts.end(); ++iter)
-	{
-		LL_INFOS() << "Type: " << LLAssetType::getDesc(iter->first)
-				<< " Count: " << iter->second.first
-				<< " Bytes: " << (iter->second.second>>20) << " MB" << LL_ENDL;
-	}
-	
-	// Look for potential merges 
-	{
- 		blocks_location_map_t::iterator iter = mFreeBlocksByLocation.begin();	
- 		blocks_location_map_t::iterator end = mFreeBlocksByLocation.end();	
- 		LLVFSBlock *first_block = iter->second;
- 		while(iter != end)
- 		{
- 			if (++iter == end)
- 				break;
- 			LLVFSBlock *second_block = iter->second;
- 			if (first_block->mLocation + first_block->mLength == second_block->mLocation)
- 			{
-				LL_INFOS() << "Potential merge at " << first_block->mLocation << LL_ENDL;
- 			}
- 			first_block = second_block;
- 		}
-	}
-	unlockData();
-}
-
-// Debug Only!
-std::string get_extension(LLAssetType::EType type)
-{
-	std::string extension;
-	switch(type)
-	{
-	case LLAssetType::AT_TEXTURE:
-		extension = ".jp2";	// formerly ".j2c"
-		break;
-	case LLAssetType::AT_SOUND:
-		extension = ".ogg";
-		break;
-	case LLAssetType::AT_SOUND_WAV:
-		extension = ".wav";
-		break;
-	case LLAssetType::AT_TEXTURE_TGA:
-		extension = ".tga";
-		break;
-	case LLAssetType::AT_ANIMATION:
-		extension = ".lla";
-		break;
-	case LLAssetType::AT_MESH:
-		extension = ".slm";
-		break;
-	default:
-		// Just use the asset server filename extension in most cases
-		extension += ".";
-		extension += LLAssetType::lookup(type);
-		break;
-	}
-	return extension;
-}
-
-void LLVFS::listFiles()
-{
-	lockData();
-	
-	for (fileblock_map::iterator it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-	{
-		LLVFSFileSpecifier file_spec = it->first;
-		LLVFSFileBlock *file_block = it->second;
-		S32 length = file_block->mLength;
-		S32 size = file_block->mSize;
-		if (length != BLOCK_LENGTH_INVALID && size > 0)
-		{
-			LLUUID id = file_spec.mFileID;
-			std::string extension = get_extension(file_spec.mFileType);
-			LL_INFOS() << " File: " << id
-					<< " Type: " << LLAssetType::getDesc(file_spec.mFileType)
-					<< " Size: " << size
-					<< LL_ENDL;
-		}
-	}
-	
-	unlockData();
-}
-
-#include "llapr.h"
-void LLVFS::dumpFiles()
-{
-	lockData();
-	
-	S32 files_extracted = 0;
-	for (fileblock_map::iterator it = mFileBlocks.begin(); it != mFileBlocks.end(); ++it)
-	{
-		LLVFSFileSpecifier file_spec = it->first;
-		LLVFSFileBlock *file_block = it->second;
-		S32 length = file_block->mLength;
-		S32 size = file_block->mSize;
-		if (length != BLOCK_LENGTH_INVALID && size > 0)
-		{
-			LLUUID id = file_spec.mFileID;
-			LLAssetType::EType type = file_spec.mFileType;
-			std::vector<U8> buffer(size);
-
-			unlockData();
-			getData(id, type, &buffer[0], 0, size);
-			lockData();
-			
-			std::string extension = get_extension(type);
-			std::string filename = id.asString() + extension;
-			LL_INFOS() << " Writing " << filename << LL_ENDL;
-			
-			LLAPRFile outfile;
-			outfile.open(filename, LL_APR_WB);
-			outfile.write(&buffer[0], size);
-			outfile.close();
-
-			files_extracted++;
-		}
-	}
-	
-	unlockData();
-
-	LL_INFOS() << "Extracted " << files_extracted << " files out of " << mFileBlocks.size() << LL_ENDL;
-}
-
-time_t LLVFS::creationTime()
-{
-    llstat data_file_stat;
-    int errors = LLFile::stat(mDataFilename, &data_file_stat);
-    if (0 == errors)
-    {
-        time_t creation_time = data_file_stat.st_ctime;
-#if LL_DARWIN
-        creation_time = data_file_stat.st_birthtime;
-#endif
-        return creation_time;
-    }
-    return 0;
-}
-
-//============================================================================
-// protected
-//============================================================================
-
-// static
-LLFILE *LLVFS::openAndLock(const std::string& filename, const char* mode, BOOL read_lock)
-{
-#if LL_WINDOWS
-    	
-	return LLFile::_fsopen(filename, mode, (read_lock ? _SH_DENYWR : _SH_DENYRW));
-    	
-#else
-
-	LLFILE *fp;
-	int fd;
-	
-	// first test the lock in a non-destructive way
-	if (strchr(mode, 'w') != NULL)
-	{
-		fp = LLFile::fopen(filename, "rb");	/* Flawfinder: ignore */
-		if (fp)
-		{
-			fd = fileno(fp);
-			if (flock(fd, (read_lock ? LOCK_SH : LOCK_EX) | LOCK_NB) == -1)
-			{
-				fclose(fp);
-				return NULL;
-			}
-		  
-			fclose(fp);
-		}
-	}
-
-	// now actually open the file for use
-	fp = LLFile::fopen(filename, mode);	/* Flawfinder: ignore */
-	if (fp)
-	{
-		fd = fileno(fp);
-		if (flock(fd, (read_lock ? LOCK_SH : LOCK_EX) | LOCK_NB) == -1)
-		{
-			fclose(fp);
-			fp = NULL;
-		}
-	}
-
-	return fp;
-    	
-#endif
-}
-    
-// static
-void LLVFS::unlockAndClose(LLFILE *fp)
-{
-	if (fp)
-	{
-	// IW: we don't actually want to unlock on linux
-	// this is because a forked process can kill the parent's lock
-	// with an explicit unlock
-	// however, fclose() will implicitly remove the lock
-	// but only once both parent and child have closed the file
-    /*	
-	  #if !LL_WINDOWS
-	  int fd = fileno(fp);
-	  flock(fd, LOCK_UN);
-	  #endif
-    */
-		fclose(fp);
-	}
-}