FileReferenceVFS.cpp
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FileReferenceVFS.cpp
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	#include <echo/FileSystem/FileSystemSourceVFS.h>
	#include <echo/FileSystem/FileReferenceVFS.h>
	#include <echo/FileSystem/FileSystem.h>
	#include <iostream>

	namespace Echo
	{
	size_t FileReferenceVFS::Read(void* buffer, size_t typeSize, size_t numToRead)
	{
	// if(!mFileMutex.Lock())
	// {
	// ECHO_LOG_ERROR("Unable to lock file mutex for VFS: " << GetVFSFileName());
	// return 0;
	// }
	size_t seekPosition=mPosition + mFileEntry.mMainOffset;
	static_cast<FileSystemSourceVFS*>(mSource)->mVFSFile.Seek(seekPosition);

	size_t bytesTotal=typeSize*numToRead;
	size_t bytesRemaining=mFileSize-mPosition;
	if(bytesTotal>bytesRemaining)
	{
	numToRead = bytesRemaining / typeSize;
	}

	size_t bytesRead=static_cast<FileSystemSourceVFS*>(mSource)->mVFSFile.Read(buffer,typeSize,numToRead);
	mPosition+=bytesRead;
	// if(!mFileMutex.Release())
	// if(!mFileMutex.Release()) //Try twice
	// {
	// ECHO_LOG_ERROR("Unable to release file mutex for VFS: " << GetVFSFileName());
	// }
	return bytesRead;
	}

	size_t FileReferenceVFS::Write(const void* /buffer/, size_t /typeSize/, size_t /numToWrite/)
	{
	//buffer;typeSize;numToWrite;reference;
	//VFS is Read only atm
	//if(!reference)
	// return 0;
	//EFileReferenceVFS* fileReference=static_cast<EFileReferenceVFS*>(reference);

	//u32 seekPosition=fileReference->GetPosition()+fileReference->mFileEntry.mMainOffset;
	//mVFSFile.Seek(seekPosition);
	//return mVFSFile.Write(buffer,typeSize,numToGet);
	return 0;
	}

	size_t FileReferenceVFS::Seek(size_t position)
	{
	if(position<mFileSize)
	{
	mPosition=position;
	}
	return mPosition;
	}

	bool FileReferenceVFS::EndOfFile()
	{
	return (mPosition>=mFileSize);
	}
	}

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