public IAsyncResult BeginProcess(ATFrame frame, bool waitResponse, int timeout, AsyncCallback callback, Object state)
{
lock (this.syncRoot)
{
lock (this.waitingLock)
{
this.waitingEcho = this.echoEnabled;
this.waitingResponse = waitResponse;
this.waitingTimeout = Environment.TickCount + timeout;
this.waitingCommand = frame.Command;
this.waitingCommandType = frame.CommandType;
this.waitingCallback = callback;
this.waitingAsyncResult = WaitingAsyncResult.GetInstance();
this.waitingAsyncResult.AsyncState = state;
}
try
{
this.sendingLength = frame.GetBytes(this.sendingBuffer, 0);
this.stream.Write(this.sendingBuffer, 0, this.sendingLength);
#if (DEBUG)
Debug.Print("Sent frame > ");
Debug.Print(new string(ATParser.Bytes2Chars(this.sendingBuffer, 0, this.sendingLength)));
#endif
return(this.waitingAsyncResult);
}
catch
{
lock (this.waitingLock)
{
this.waitingEcho = false;
this.waitingResponse = false;
}
throw new ATModemException(ATModemError.Generic);
}
}
}
public ATFrame Process(ATFrame frame, bool waitResponse, int timeout, AsyncCallback callback)
{
lock (this.syncRoot)
{
if (waitResponse)
{
lock (this.waitingLock)
{
this.waitingEcho = this.echoEnabled;
this.waitingResponse = true;
this.waitingTimeout = Environment.TickCount + timeout;
this.waitingCommand = frame.Command;
this.waitingCommandType = frame.CommandType;
this.waitingCallback = null;
this.waitingEchoEvent.Reset();
this.waitingResponseEvent.Reset();
}
}
try
{
this.sendingLength = frame.GetBytes(this.sendingBuffer, 0);
this.stream.Write(this.sendingBuffer, 0, this.sendingLength);
#if (DEBUG)
Debug.Print("Sent frame > ");
Debug.Print(new string(ATParser.Bytes2Chars(this.sendingBuffer, 0, this.sendingLength)));
#endif
if (this.waitingEcho && !this.waitingEchoEvent.WaitOne(defaultEchoTimeout, true))
{
throw new ATModemException(ATModemError.Timeout);
}
if (!waitResponse)
{
return(null);
}
if (this.waitingResponseEvent.WaitOne(timeout, true))
{
return(this.waitingFrame);
}
throw new ATModemException(ATModemError.Timeout);
}
finally
{
if (waitResponse)
{
lock (this.waitingLock)
{
this.waitingEcho = false;
this.waitingResponse = false;
}
}
}
}
}