static void OnWatcherCallback(IntPtr handle, int status)
{
if (handle == IntPtr.Zero)
{
return;
}
WatcherRequest request = RequestContext.GetTarget <WatcherRequest>(handle);
OperationException error = null;
if (status < 0)
{
error = NativeMethods.CreateError((uv_err_code)status);
}
request?.OnWatcherCallback(error);
}
