public void Write(int index, byte[] data)
{
// Make sure this is a file
if (!IsFile)
{
throw new Exception("Must write to a file!");
}
// Load the cache of blocks for the file
LoadBlocks();
// Grow the cached blocks if needed
int finalLength = Math.Max(FileLength, index + data.Length);
VirtualBlock.ExtendBlocks(drive, blocks, FileLength, finalLength);
// Write the bytes to the cache
VirtualBlock.WriteBlockData(drive, blocks, index, data);
// Flush the cache of blocks
CommitBlocks();
// Adjust file size as needed
if (finalLength > FileLength)
{
(sector as FILE_NODE).FileSize = index + data.Length;
drive.Disk.WriteSector(nodeSector, sector.RawBytes);
}
}
public void Write(int index, byte[] data)
{
if (!IsFile)
{
throw new Exception("Must be a file to write bytes!");
}
// Make sure the cache is filled!
LoadBlocks();
// Extend the blocks if necessarry
int initialFileLength = FileLength;
int finalFileLength = Math.Max(index + data.Length, initialFileLength);
VirtualBlock.ExtendBlocks(drive, blocks, initialFileLength, finalFileLength);
// Write the data to the blocks
VirtualBlock.WriteBlockData(drive, blocks, index, data);
//Write the blocks
CommitBlocks();
// Update file length in file node sector
// Make sure to incease the file length as needed
if (finalFileLength > initialFileLength)
{
(sector as FILE_NODE).FileSize = finalFileLength;
drive.Disk.WriteSector(nodeSector, sector.RawBytes);
}
}
public void Write(int index, byte[] data)
{
//writes data bytes to the file starting at the index byte
//fill cache by read current data from disk for this file
LoadBlocks();
//if data to be writen is beyond the end of the current number of blocks, extend blocks
int currentFileLength = FileLength;
int newFileLength = Math.Max(currentFileLength, index + data.Length);
VirtualBlock.ExtendBlocks(drive, blocks, currentFileLength, newFileLength);
//copy data from cache to blocks
VirtualBlock.WriteBlockData(drive, blocks, index, data);
//commit cache back to disk
CommitBlocks();
if (newFileLength > currentFileLength)
{
(sector as FILE_NODE).FileSize = newFileLength;
drive.Disk.WriteSector(nodeSector, sector.RawBytes);
}
}