public void WriteSequenceToSocket(SequenceContext seqCtx, IChannel senderChannel, Guid guid,
BufferObject buffObj,
Socket sock, AsyncCallback sendCallback)
{
WritePacketToSocket(seqCtx.InitPacket, senderChannel, guid, buffObj, sock, sendCallback, null);
for (var i = 0; i < seqCtx.SequencePackets.Length; i++)
{
WritePacketToSocket(seqCtx.SequencePackets[i], senderChannel, guid, buffObj, sock, sendCallback, null);
}
}
public void ReadLength(AsyncCallback callback, BufferObject buffObj, Socket _sock, int readLen)
{
if (readLen >= 4)
{
buffObj.PacketSize = BitConverter.ToInt32(buffObj.RecBuff, 0);
if (buffObj.PacketSize < buffObj.BufferSize)
{
_sock.BeginReceive(buffObj.RecBuff, 0, buffObj.PacketSize, 0, callback, buffObj);
}
else
{
_sock.BeginReceive(buffObj.RecBuff, 0, buffObj.BufferSize, 0, callback, buffObj);
}
}
}
public void WritePacketToSocket(IDataPacket data, IChannel senderChannel, Guid guid, BufferObject buffObj,
Socket sock, AsyncCallback sendCallback, SocketOperationContext operationCtx)
{
var ms = new MemoryStream();
data.SerializeTo(ms);
sbyte integrityHashSize = 0;
if (senderChannel != null)
{
switch (senderChannel.IntegrityHash)
{
case Security.PacketIntegrityHash.Sha256:
integrityHashSize = 32;
break;
case Security.PacketIntegrityHash.Crc32:
integrityHashSize = 4;
break;
case Security.PacketIntegrityHash.Elf32:
integrityHashSize = 4;
break;
}
}
var headerSize = 1 + (operationCtx != null ? 32 : 0) +
(senderChannel != null && senderChannel.EnsurePacketIntegrity ? integrityHashSize + 2 : 1);
var sendBuff = new byte[ms.Length + headerSize + 4];
FastBuffer.MemCpy(BitConverter.GetBytes(headerSize + ms.Length), 0, sendBuff, 0, 4);
sendBuff[4] = operationCtx == null ? ((byte)0x0) : ((byte)0x1);
sendBuff[5] = senderChannel != null && senderChannel.EnsurePacketIntegrity ? (byte)0x1 : (byte)0x0;
if (senderChannel != null && senderChannel.EnsurePacketIntegrity)
{
sendBuff[6] = (byte)senderChannel.IntegrityHash;
}
if (operationCtx != null)
{
FastBuffer.MemCpy(operationCtx.OperationGuid.ToByteArray(), 0, sendBuff, 6, 16);
FastBuffer.MemCpy(guid.ToByteArray(), 0, sendBuff, 22, 16);
}
var tmpBuff = new byte[ms.Length];
ms.Seek(0, SeekOrigin.Begin);
ms.Read(tmpBuff, 0, tmpBuff.Length);
FastBuffer.MemCpy(tmpBuff, 0, sendBuff, operationCtx != null ? 38 : 6, tmpBuff.Length);
var sendObj = new Peer.Peer.SendObject {
Channel = senderChannel, Packet = data
};
if (sock.Connected)
{
sock.BeginSend(sendBuff, 0, sendBuff.Length, 0, sendCallback, sendObj);
}
}