public Task <Match> WaitForMatch(Regex regex)
{
TaskCompletionSource <Match> tcs = new TaskCompletionSource <Match>();
object completionLock = new object();
EventedStreamReader.OnReceivedLineHandler onReceivedLineHandler = (EventedStreamReader.OnReceivedLineHandler)null;
EventedStreamReader.OnStreamClosedHandler onStreamClosedHandler = (EventedStreamReader.OnStreamClosedHandler)null;
onReceivedLineHandler = (EventedStreamReader.OnReceivedLineHandler)(line =>
{
Match match = regex.Match(line);
if (!match.Success)
{
return;
}
ResolveIfStillPending((Action)(() => tcs.SetResult(match)));
});
onStreamClosedHandler = (EventedStreamReader.OnStreamClosedHandler)(() => ResolveIfStillPending((Action)(() => tcs.SetException((Exception) new EndOfStreamException()))));
this.OnReceivedLine += onReceivedLineHandler;
this.OnStreamClosed += onStreamClosedHandler;
return(tcs.Task);
void ResolveIfStillPending(Action applyResolution)
{
lock (completionLock)
{
if (tcs.Task.IsCompleted)
{
return;
}
this.OnReceivedLine -= onReceivedLineHandler;
this.OnStreamClosed -= onStreamClosedHandler;
applyResolution();
}
}
}
private void OnClosed()
{
EventedStreamReader.OnStreamClosedHandler onStreamClosed = this.OnStreamClosed;
if (onStreamClosed == null)
{
return;
}
onStreamClosed();
}
