public void ReadThread()
{
Stream.ReadTimeout = 40000;// 40s timeout
try
{
while (ThreadWorking)
{
Send(PacketGenerator.Interested());
Send(PacketGenerator.Unchoke());
if (State == PeerState.CHOKED)
{
if (ChokeTimer.GetElapsedSeconds() >= 30.0)
{
ThreadWorking = false;
break;
}
}
byte packetID = 0;
byte[] received = ReadPacket(ref packetID);
if (packetID <= 9)
{
AliveTimer.Reset();
}
#if DEBUG
Console.WriteLine("Received packet: {0}", packetID == 0xF0 ? "Keep-Alive" : Convert.ToString(packetID));
#endif
switch (packetID)
{
case 0xF0: //KEEP_ALIVE
//AliveTimer.Reset();
if (State == PeerState.READY)
{
if (RequestForNewPiece() == -1)
{
//all pieces downloaded or failed
State = PeerState.SHAKING;
ThreadWorking = false;
}
}
//SendPacket(null, 0);
break;
case 0: //CHOKE
ChokeTimer.Reset();
State = PeerState.CHOKED;
break;
case 1: //UNCHOKE
if (State == PeerState.CHOKED)
{
// Send(PacketGenerator.Interested());
//Console.WriteLine("Sent Interested Packet!");
if (RequestForNewPiece() == -1)
{
//all pieces downloaded or failed
State = PeerState.SHAKING;
ThreadWorking = false;
}
Send(PacketGenerator.Unchoke());
}
if (State == PeerState.CHOKED)
{
State = PeerState.READY;
}
break;
case 2: //INTERESTED
State = PeerState.READY;
if (RequestForNewPiece() == -1)
{
//all pieces downloaded or failed
State = PeerState.SHAKING;
ThreadWorking = false;
}
break;
case 3: //NOTINTERESTED
ThreadWorking = false;
#if DEBUG
Console.WriteLine("Killing thread.. Not interested.");
#endif
break;
case 4: //HAVE
Have(received); // OK
break;
case 5: //BITFIELD
BitField(received);
break;
case 6: //REQUEST
FetchAndSendPiece(received);
break;
case 7: //PIECE
State = PeerState.READY;
if (SavePieceAndRequestForNewOne(received) == -1)
{
//all pieces downloaded or failed
State = PeerState.SHAKING;
ThreadWorking = false;
}
break;
case 8: //CANCEL
//No need
break;
case 9: //PORT
//Unused
break;
}
}
}
catch (Exception e)
{
ThreadWorking = false;
#if DEBUG
Console.WriteLine("ThreadException: {0}", e.Message);
#endif
}
}