private static string Convert(__VSTASKRUNCONTEXT value)
{
return(value switch
{
__VSTASKRUNCONTEXT.VSTC_UITHREAD_SEND => "UI Thread - RPC",
__VSTASKRUNCONTEXT.VSTC_BACKGROUNDTHREAD => "Background Thread",
__VSTASKRUNCONTEXT.VSTC_UITHREAD_BACKGROUND_PRIORITY => "UI Thread - Background",
__VSTASKRUNCONTEXT.VSTC_UITHREAD_IDLE_PRIORITY => "UI Thread - Idle",
__VSTASKRUNCONTEXT.VSTC_UITHREAD_NORMAL_PRIORITY => "UI Thread - Normal",
__VSTASKRUNCONTEXT.VSTC_BACKGROUNDTHREAD_LOW_IO_PRIORITY => "Background, low I/O",
_ => value.ToString(),
});
public static TaskScheduler GetSchedulerFromContext(__VSTASKRUNCONTEXT context)
{
switch (context)
{
case __VSTASKRUNCONTEXT.VSTC_BACKGROUNDTHREAD:
case __VSTASKRUNCONTEXT.VSTC_BACKGROUNDTHREAD_LOW_IO_PRIORITY:
return(TaskScheduler.Default);
case __VSTASKRUNCONTEXT.VSTC_UITHREAD_BACKGROUND_PRIORITY:
case __VSTASKRUNCONTEXT.VSTC_UITHREAD_IDLE_PRIORITY:
case __VSTASKRUNCONTEXT.VSTC_UITHREAD_NORMAL_PRIORITY:
case __VSTASKRUNCONTEXT.VSTC_UITHREAD_SEND:
case __VSTASKRUNCONTEXT.VSTC_CURRENTCONTEXT:
return(AssemblyInitialize.ApplicationTaskScheduler);
default:
return(TaskScheduler.Current);
}
}
private FakeIVsTask(
FakeIVsTask parent,
__VSTASKRUNCONTEXT context,
__VSTASKCONTINUATIONOPTIONS options,
IVsTaskBody body,
object asyncState)
{
TaskScheduler scheduler = GetSchedulerFromContext(context);
TaskContinuationOptions continuationOptions = GetTaskContinuationOptions(options);
_t = parent._t.ContinueWith(
(task, state) =>
{
body.DoWork(this, 1, new IVsTask[] { parent }, out object result);
return(result);
},
asyncState,
default(CancellationToken),
continuationOptions,
scheduler);
parent.OnMarkedAsBlocking?.Invoke(parent, new BlockingTaskEventArgs(parent, this));
}
