public void InsertBytes(long index, byte[] bs)
{
try
{
long blockOffset;
DataBlock dataBlock = GetDataBlock(index, out blockOffset);
MemoryDataBlock memoryDataBlock1 = dataBlock as MemoryDataBlock;
if (memoryDataBlock1 != null)
{
memoryDataBlock1.InsertBytes(index - blockOffset, bs);
}
else
{
FileDataBlock fileDataBlock1 = (FileDataBlock)dataBlock;
if (blockOffset == index && dataBlock.PreviousBlock != null)
{
MemoryDataBlock memoryDataBlock2 = dataBlock.PreviousBlock as MemoryDataBlock;
if (memoryDataBlock2 != null)
{
memoryDataBlock2.InsertBytes(memoryDataBlock2.Length, bs);
return;
}
}
FileDataBlock fileDataBlock2 = (FileDataBlock)null;
if (index > blockOffset)
{
fileDataBlock2 = new FileDataBlock(fileDataBlock1.FileOffset, index - blockOffset);
}
FileDataBlock fileDataBlock3 = (FileDataBlock)null;
if (index < blockOffset + fileDataBlock1.Length)
{
fileDataBlock3 = new FileDataBlock(fileDataBlock1.FileOffset + index - blockOffset, fileDataBlock1.Length - (index - blockOffset));
}
DataBlock block = _dataMap.Replace(dataBlock, (DataBlock) new MemoryDataBlock(bs));
if (fileDataBlock2 != null)
{
_dataMap.AddBefore(block, (DataBlock)fileDataBlock2);
}
if (fileDataBlock3 == null)
{
return;
}
_dataMap.AddAfter(block, (DataBlock)fileDataBlock3);
}
}
finally
{
_totalLength += (long)bs.Length;
OnLengthChanged(EventArgs.Empty);
OnChanged(EventArgs.Empty);
}
}
public void InsertBytes(long index, byte[] bs)
{
try
{
long num;
DataBlock dataBlock = this.GetDataBlock(index, out num);
MemoryDataBlock block2 = dataBlock as MemoryDataBlock;
if (block2 != null)
{
block2.InsertBytes(index - num, bs);
}
else
{
FileDataBlock block3 = (FileDataBlock)dataBlock;
if ((num == index) && (dataBlock.PreviousBlock != null))
{
MemoryDataBlock previousBlock = dataBlock.PreviousBlock as MemoryDataBlock;
if (previousBlock != null)
{
previousBlock.InsertBytes(previousBlock.Length, bs);
return;
}
}
FileDataBlock newBlock = null;
if (index > num)
{
newBlock = new FileDataBlock(block3.FileOffset, index - num);
}
FileDataBlock block6 = null;
if (index < (num + block3.Length))
{
block6 = new FileDataBlock((block3.FileOffset + index) - num, block3.Length - (index - num));
}
dataBlock = this._dataMap.Replace(dataBlock, new MemoryDataBlock(bs));
if (newBlock != null)
{
this._dataMap.AddBefore(dataBlock, newBlock);
}
if (block6 != null)
{
this._dataMap.AddAfter(dataBlock, block6);
}
}
}
finally
{
this._totalLength += bs.Length;
this.OnLengthChanged(EventArgs.Empty);
this.OnChanged(EventArgs.Empty);
}
}
