public override Task <bool> CheckAsync(OperationContext context, CancellationToken cancellationToken)
{
lock (context.CustomData)
{
var running = PreventRepetitiveExecutionsHelper.IsRunning(context.CustomData);
if (!running)
{
PreventRepetitiveExecutionsHelper.SetIsRunning(context.CustomData, true);
return(Task.FromResult(true));
}
throw new OperationCanceledException();
}
}
protected override void Show(OperationContext context)
{
lock (context.CustomData)
PreventRepetitiveExecutionsHelper.SetIsRunning(context.CustomData, true);
}
protected override void Hide(OperationContext context, OperationStatus status)
{
lock (context.CustomData)
PreventRepetitiveExecutionsHelper.SetIsRunning(context.CustomData, false);
}