private async Task <PPError> CloseAsyncCore(MessageLoop messageLoop = null)
{
var tcs = new TaskCompletionSource <PPError>();
EventHandler <PPError> handler = (s, e) => { tcs.TrySetResult(e); };
try
{
HandleClose += handler;
if (MessageLoop == null && messageLoop == null)
{
Close();
}
else
{
Action <PPError> action = new Action <PPError>((e) =>
{
PPBURLLoader.Close(this);
tcs.TrySetResult(PPError.Ok);
}
);
InvokeHelper(action, messageLoop);
}
return(await tcs.Task);
}
catch (Exception exc)
{
Console.WriteLine(exc.Message);
tcs.SetException(exc);
return(PPError.Aborted);
}
finally
{
HandleClose -= handler;
}
}
/// <summary>
/// This function is used to cancel any pending IO and close the URLLoader
/// object. Any pending callbacks will still run, reporting
/// <code>Aborted</code> if pending IO was interrupted. It is NOT
/// valid to call Open() again after a call to this function.
///
/// <strong>Note:</strong> If the <code>URLLoader</code> object is destroyed
/// while it is still open, then it will be implicitly closed so you are not
/// required to call Close().
/// </summary>
public void Close()
{
PPBURLLoader.Close(this);
OnClose(PPError.Ok);
}
