// Token: 0x0600036B RID: 875 RVA: 0x00012570 File Offset: 0x00010770
public void DeleteBytes(long index, long length)
{
try
{
long num = length;
long num2;
DataBlock dataBlock = this.GetDataBlock(index, out num2);
while (num > 0L && dataBlock != null)
{
long length2 = dataBlock.Length;
DataBlock nextBlock = dataBlock.NextBlock;
long num3 = Math.Min(num, length2 - (index - num2));
dataBlock.RemoveBytes(index - num2, num3);
if (dataBlock.Length == 0L)
{
this._dataMap.Remove(dataBlock);
if (this._dataMap.FirstBlock == null)
{
this._dataMap.AddFirst(new MemoryDataBlock(new byte[0]));
}
}
num -= num3;
num2 += dataBlock.Length;
dataBlock = ((num > 0L) ? nextBlock : null);
}
}
finally
{
this._totalLength -= length;
this.OnLengthChanged(EventArgs.Empty);
this.OnChanged(EventArgs.Empty);
}
}
public void DeleteBytes(long index, long length)
{
try
{
long val1 = length;
long blockOffset;
DataBlock nextBlock;
for (DataBlock block = this.GetDataBlock(index, out blockOffset); val1 > 0L && block != null; block = val1 > 0L ? nextBlock : (DataBlock)null)
{
long length1 = block.Length;
nextBlock = block.NextBlock;
long count = Math.Min(val1, length1 - (index - blockOffset));
block.RemoveBytes(index - blockOffset, count);
if (block.Length == 0L)
{
this._dataMap.Remove(block);
if (this._dataMap.FirstBlock == null)
{
this._dataMap.AddFirst((DataBlock) new MemoryDataBlock(new byte[0]));
}
}
val1 -= count;
blockOffset += block.Length;
}
}
finally
{
this._totalLength -= length;
this.OnLengthChanged(EventArgs.Empty);
this.OnChanged(EventArgs.Empty);
}
}
/// <summary>
/// See <see cref="IByteProvider.DeleteBytes" /> for more information.
/// </summary>
public void DeleteBytes(long index, long length)
{
if (!_supportsInsDel)
{
return;
}
try
{
long bytesToDelete = length;
// Find the first block affected.
long blockOffset;
DataBlock block = GetDataBlock(index, out blockOffset);
// Truncate or remove each block as necessary.
while ((bytesToDelete > 0) && (block != null))
{
long blockLength = block.Length;
DataBlock nextBlock = block.NextBlock;
// Delete the appropriate section from the block (this may result in two blocks or a zero length block).
long count = Math.Min(bytesToDelete, blockLength - (index - blockOffset));
block.RemoveBytes(index - blockOffset, count);
if (block.Length == 0)
{
_dataMap.Remove(block);
if (_dataMap.FirstBlock == null)
{
_dataMap.AddFirst(new MemoryDataBlock(new byte[0]));
}
}
bytesToDelete -= count;
blockOffset += block.Length;
block = (bytesToDelete > 0) ? nextBlock : null;
}
}
finally
{
_totalLength -= length;
OnLengthChanged(EventArgs.Empty);
OnChanged(EventArgs.Empty);
}
}
