public static void ExitAllFrames()
{
Dispatcher dis = CurrentDispatcher;
for (DispatcherFrame frame = dis.currentFrame; frame != null; frame = frame.ParentFrame)
{
if (frame.ExitOnRequest)
{
frame.Continue = false;
}
else
{
break;
}
}
}
private void RunFrame(DispatcherFrame frame)
{
do
{
while (this.queueBits != 0)
{
for (int i = TopPriority; i > 0 && this.queueBits != 0; i--)
{
int currentBit = this.queueBits & (1 << i);
if (currentBit != 0)
{
PokableQueue q = this.priorityQueues[i];
do
{
DispatcherOperation task;
lock (q)
{
task = (DispatcherOperation)q.Dequeue();
}
task.Invoke();
if (task.Status == DispatcherOperationStatus.Aborted)
{
this.hooks.EmitOperationAborted(task);
}
else
{
this.hooks.EmitOperationCompleted(task);
}
if (!frame.Continue)
{
return;
}
if (this.HasShutdownStarted)
{
this.PerformShutdown();
return;
}
lock (q)
{
if (q.Count == 0)
{
this.queueBits &= ~(1 << i);
break;
}
}
if (currentBit < (this.queueBits & ~currentBit))
{
break;
}
}while (true);
}
}
}
this.hooks.EmitInactive();
PlatformInterface.Instance.Dispatcher.ProcessMessage();
if (this.HasShutdownStarted)
{
this.PerformShutdown();
return;
}
}while (frame.Continue);
}
private void RunFrame(DispatcherFrame frame)
{
do
{
while (this.queueBits != 0)
{
for (int i = TopPriority; i > 0 && this.queueBits != 0; i--)
{
int currentBit = this.queueBits & (1 << i);
if (currentBit != 0)
{
PokableQueue q = this.priorityQueues[i];
do
{
DispatcherOperation task;
lock (q)
{
task = (DispatcherOperation)q.Dequeue();
}
task.Invoke();
if (task.Status == DispatcherOperationStatus.Aborted)
{
this.hooks.EmitOperationAborted(task);
}
else
{
this.hooks.EmitOperationCompleted(task);
}
if (!frame.Continue)
{
return;
}
if (this.HasShutdownStarted)
{
this.PerformShutdown();
return;
}
lock (q)
{
if (q.Count == 0)
{
this.queueBits &= ~(1 << i);
break;
}
}
if (currentBit < (this.queueBits & ~currentBit))
{
break;
}
}
while (true);
}
}
}
this.hooks.EmitInactive();
PlatformInterface.Instance.Dispatcher.ProcessMessage();
if (this.HasShutdownStarted)
{
this.PerformShutdown();
return;
}
}
while (frame.Continue);
}
public static void PushFrame(DispatcherFrame frame)
{
if (frame == null)
{
throw new ArgumentNullException("frame");
}
Dispatcher dis = CurrentDispatcher;
if (dis.HasShutdownFinished)
{
throw new InvalidOperationException("The Dispatcher has shut down");
}
if (frame.Running != null)
{
throw new InvalidOperationException("Frame is already running on a different dispatcher");
}
if ((dis.flags & Flags.Disabled) != 0)
{
throw new InvalidOperationException("Dispatcher processing has been disabled");
}
frame.ParentFrame = dis.currentFrame;
dis.currentFrame = frame;
frame.Running = dis;
dis.RunFrame(frame);
}
