private void OnTimerFired(object state)
{
Bookmark timerBookmark = state as Bookmark;
WorkflowInstanceProxy targetInstance = this.instance;
// it's possible that we've been unloaded while the timer was in the process of firing, in
// which case targetInstance will be null
if (targetInstance != null)
{
BookmarkResumptionResult resumptionResult;
IAsyncResult result = null;
bool completed = false;
result = targetInstance.BeginResumeBookmark(timerBookmark, null, TimeSpan.MaxValue,
onResumeBookmarkComplete, new BookmarkResumptionState(timerBookmark, this, targetInstance));
completed = result.CompletedSynchronously;
if (completed && result != null)
{
try
{
resumptionResult = targetInstance.EndResumeBookmark(result);
ProcessBookmarkResumptionResult(timerBookmark, resumptionResult);
}
catch (TimeoutException)
{
ProcessBookmarkResumptionResult(timerBookmark, BookmarkResumptionResult.NotReady);
}
}
}
}
static void OnResumeBookmarkCompleted(IAsyncResult result)
{
if (!result.CompletedSynchronously)
{
WorkflowInstanceProxy instance = result.AsyncState as WorkflowInstanceProxy;
Fx.Assert(instance != null, "BeginResumeBookmark should pass a WorkflowInstanceProxy object as the async state object.");
instance.EndResumeBookmark(result);
}
}
internal void OnWaiterFired(object sender, WaiterEventArgs args)
{
// Waiter was fired, resume the bookmark
_instance.BeginResumeBookmark(
_bookmark,
args.Message,
(asr) => _instance.EndResumeBookmark(asr),
null);
}
/// <summary>
/// Used to resume bookmark outside workflow.
/// </summary>
/// <param name="bookmark">The value of Bookmark to be resumed</param>
public void ResumeBookmark(Bookmark bookmark)
{
IAsyncResult asyncResult = _instance.BeginResumeBookmark(bookmark, null, Fx.ThunkCallback(new AsyncCallback(StateMachineExtension.OnResumeBookmarkCompleted)), _instance);
if (asyncResult.CompletedSynchronously)
{
_instance.EndResumeBookmark(asyncResult);
}
}
public void WaitSome(Bookmark bookmark)
{
ThreadPool.QueueUserWorkItem(state =>
{
Thread.Sleep(1000);
var ias = _instance.BeginResumeBookmark(bookmark, 42, null, null);
var result = _instance.EndResumeBookmark(ias);
if (System.Diagnostics.Debugger.IsAttached)
{
System.Diagnostics.Debug.WriteLine("BookmarkResumptionResult: '{0}'", result);
}
});
}
private void OnTimerFired(object state)
{
Bookmark nextExpiredBookmark;
lock (this.ThisLock)
{
nextExpiredBookmark = this.RegisteredTimers.GetNextExpiredBookmark();
if ((nextExpiredBookmark == null) || (this.RegisteredTimers.GetNextDueTime() > DateTime.UtcNow))
{
return;
}
}
WorkflowInstanceProxy instance = this.instance;
if (instance != null)
{
IAsyncResult result2 = null;
bool completedSynchronously = false;
try
{
result2 = instance.BeginResumeBookmark(nextExpiredBookmark, null, TimeSpan.FromSeconds(2.0), onResumeBookmarkComplete, new BookmarkResumptionState(nextExpiredBookmark, this, instance));
completedSynchronously = result2.CompletedSynchronously;
}
catch (TimeoutException)
{
this.ProcessBookmarkResumptionResult(nextExpiredBookmark, BookmarkResumptionResult.NotReady);
}
if (completedSynchronously && (result2 != null))
{
try
{
BookmarkResumptionResult result = instance.EndResumeBookmark(result2);
this.ProcessBookmarkResumptionResult(nextExpiredBookmark, result);
}
catch (TimeoutException)
{
this.ProcessBookmarkResumptionResult(nextExpiredBookmark, BookmarkResumptionResult.NotReady);
}
}
}
}
internal void ResumeBookmark(Bookmark bookmark, object value)
{
_instance.EndResumeBookmark(
_instance.BeginResumeBookmark(bookmark, value, null, null));
}
internal BookmarkResumptionResult ResumeBookmark(Bookmark bookmark, object value)
{
return(_workflowInstance.EndResumeBookmark(_workflowInstance.BeginResumeBookmark(bookmark, value, null, null)));
}