/// <summary>
/// Provides a client for connecting to WebSocket services.
/// </summary>
/// <param name="logSourceID">Identifier to be used when calling the Logger service.</param>
/// <param name="options">Collection of WebSocket options.</param>
public WebSocketClient(string logSourceID, WSOptions options = null)
{
this.loggerID = logSourceID;
this.options = options;
if (this.options == null)
this.options = new WSOptions();
this.origin = this.options.Origin;
this.subProtocol = this.options.SubProtocol;
this.extensions = this.options.Extensions;
this.activityTimerEnabled = this.options.ActivityTimerEnabled;
this.sendFramesMasked = this.options.MaskingEnabled;
this.waitHandshakeTimeout = this.options.HandshakeTimeout;
this.waitCloseMsgTimeout = this.options.CloseMsgTimeout;
this.waitReceiveTimeout = this.options.ReceiveTimeout;
this.waitActivityTimeout = this.options.ActivityTimeout;
this.waitPingRespTimeout = this.options.PingRespTimeout;
this.activityTimer = new TimerEx();
this.state = WebSocketState.Initialized;
this.eventLock = new object();
this.sendLock = new object();
this.isDisposed = false;
this.receiveBuffer = new byte[this.options.MaxReceiveFrameLength];
this.lastRcvdFrame = null;
this.sendQueue = new WSFrameQueue(this.options.MaxSendQueueSize);
// start state machine
try
{
this.runThreadLoop = true;
this.runStateMachine = new AutoResetEvent(false);
this.stateMachineThread = new Thread(new ThreadStart(this.WSStateMachine));
this.stateMachineThread.Start();
}
catch (Exception ex)
{
Logger.WriteError(this.loggerID, ex.Message, ex.StackTrace);
}
}
protected virtual void Dispose(bool disposing)
{
if (this.isDisposed)
return;
if (disposing)
{
// disconnect
this.Disconnect();
DateTime timeoutTime = DateTime.Now.AddSeconds(20);
while (this.state != WebSocketState.Disconnected && DateTime.Now < timeoutTime)
Thread.Sleep(500);
// kill thread
this.runThreadLoop = false;
this.runStateMachine.Set();
this.stateMachineThread.Join(1000);
// clear the message queue
if (this.sendQueue != null)
this.sendQueue.Clear();
// kill timer
if (this.activityTimer != null)
this.activityTimer.Dispose();
// cleanup streams
if (this.socketStream != null)
this.socketStream.Close();
// cleanup sockets
if (this.socket != null)
this.socket.Close();
}
// set everything to null
this.eventLock = null;
this.sendLock = null;
this.activityTimer = null;
this.sendQueue = null;
this.socket = null;
this.socketStream = null;
this.receiveBuffer = null;
this.lastRcvdFrame = null;
this.serverUri = null;
this.loggerID = null;
this.origin = null;
this.subProtocol = null;
this.extensions = null;
this.securityKey = null;
this.options = null;
// make sure we don't dispose again
this.isDisposed = true;
}
