public ValueTask FlushAsync()
{
lock (_contextLock)
{
if (_isInitialized)
{
return(new ValueTask(Task.CompletedTask));
}
NativeMethods.HttpEnableWebsockets(_handler);
var init = GetInitializeOperation();
init.Initialize(_handler);
var continuation = init.Invoke();
if (continuation != null)
{
_isInitialized = true;
}
else
{
_initializationFlush = init;
}
return(new ValueTask(init, 0));
}
}
public void NotifyCompletion(int hr, int bytes)
{
_isInitialized = true;
var init = _initializationFlush;
if (init == null)
{
throw new InvalidOperationException("Unexpected completion for WebSocket operation");
}
var continuation = init.Complete(hr, bytes);
_initializationFlush = null;
continuation.Invoke();
}
private void ReturnOperation(AsyncInitializeOperation operation) => Volatile.Write(ref _cachedAsyncInitializeOperation, operation);