private void SendHeartbeat(string remoteIp, int remotePort)
{
lock (_hbMutex)
{
if (_hbMutex.IsHeld())
{
//Logger.Info(string.Format("TunnelId={0} TunnelName={1} Message=\"Heartbeat has already been sent to {2}:{3} in the last {4} seconds. Aborting.\"", GetId(), FriendlyName, remoteIp, remotePort, HeartbeatTimeout / 1000));
return;
}
Logger.Info(string.Format("TunnelId={0} TunnelName={1} Message=\"Locking available mutex to send heartbeat to remote client {2}:{3}\"", GetId(), FriendlyName, remoteIp, remotePort));
_hbMutex.Hold();
}
var tmpBuffer = Buffer.New();
Buffer.ClearBuffer(tmpBuffer);
Buffer.FinalizeBuffer(tmpBuffer);
SockLib.SendMessage(_socket, remoteIp, remotePort, tmpBuffer);
Thread.Sleep(HeartbeatTimeout);
lock (_hbMutex)
{
Logger.Info(string.Format("TunnelId={0} TunnelName={1} Message=\"Releasing mutex for heartbeat\"", GetId(), FriendlyName));
_hbMutex.Release();
}
}
private void TunnelSendThread(string remoteIp, int remotePort)
{
while (true)
{
var message = DequeueMessage();
if (message == null)
{
new Thread(() => SendHeartbeat(remoteIp, remotePort)).Run();
continue;
}
Buffer.ClearBuffer(_sendBuffer);
Buffer.Add(_sendBuffer, message);
Buffer.FinalizeBuffer(_sendBuffer);
SockLib.SendMessage(_socket, remoteIp, remotePort, _sendBuffer);
}
}