/// <summary>
/// Adds a Gap Ack Block.
/// </summary>
/// <param name="block">The gap ack block.</param>
public void AddGapAckBlock(GapAckBlock block)
{
if (this.GapAckBlocks == null)
{
this.GapAckBlocks = new List <GapAckBlock>();
}
this.GapAckBlocks.Add(block);
}
/// <summary>
/// Reads the chunk from a byte array.
/// </summary>
/// <param name="buffer">The byte array.</param>
/// <param name="offset">The offset at which to start reading the chunk.</param>
/// <param name="length">The number of bytes that make up the chunk..</param>
/// <returns>The number of bytes read.</returns>
protected override int FromBuffer(byte[] buffer, int offset, int length)
{
int start = offset;
this.CumulativeTSNAck = NetworkHelpers.ToUInt32(buffer, offset);
offset += 4;
this.AdvertisedReceiverWindowCredit = NetworkHelpers.ToUInt32(buffer, offset);
offset += 4;
int numberOfGapAckBlocks = (int)NetworkHelpers.ToUInt16(buffer, offset);
offset += 2;
int numberOfDuplicateTSNs = (int)NetworkHelpers.ToUInt16(buffer, offset);
offset += 2;
for (int i = 0; i < numberOfGapAckBlocks; i++)
{
if (this.GapAckBlocks == null)
{
this.GapAckBlocks = new List <GapAckBlock>(numberOfGapAckBlocks);
}
GapAckBlock block = new GapAckBlock();
block.GapAckBlockStart = NetworkHelpers.ToUInt16(buffer, offset);
offset += 2;
block.GapAckBlockEnd = NetworkHelpers.ToUInt16(buffer, offset);
offset += 2;
this.AddGapAckBlock(block);
}
for (int i = 0; i < numberOfDuplicateTSNs; i++)
{
if (this.DuplicateTSNs == null)
{
this.DuplicateTSNs = new List <uint>(numberOfDuplicateTSNs);
}
this.DuplicateTSNs.Add(NetworkHelpers.ToUInt32(buffer, offset));
offset += 4;
}
return(offset - start);
}