private PdnSynchronizationContext(SynchronizationContext prevSyncContext, WaitForMultipleObjectsExDelegate waitForMultipleObjectsExCallback, SleepExDelegate sleepExCallback)
{
Validate.Begin().IsNotNull <SynchronizationContext>(prevSyncContext, "prevSyncContext").IsNotNull <WaitForMultipleObjectsExDelegate>(waitForMultipleObjectsExCallback, "waitForMultipleObjectsExCallback").IsNotNull <SleepExDelegate>(sleepExCallback, "sleepExCallback").Check();
this.syncThread = Thread.CurrentThread;
this.prevSyncContext = prevSyncContext;
this.waitForMultipleObjectsExCallback = waitForMultipleObjectsExCallback;
this.sleepExCallback = sleepExCallback;
this.processQueueCallback = new SendOrPostCallback(this.ProcessQueueCallback);
this.processCollatedCallbackCallback = new SendOrPostCallback(this.ProcessCollatedCallback);
base.SetWaitNotificationRequired();
}
public static PdnSynchronizationContextController Install(WaitForMultipleObjectsExDelegate waitForMultipleObjectsExCallback, SleepExDelegate sleepExCallback)
{
SynchronizationContext current = SynchronizationContext.Current;
if (current == null)
{
ExceptionUtil.ThrowInvalidOperationException("An SynchronizationContext must already be installed before PdnSynchronizationContext may be installed");
}
PdnSynchronizationContext context = new PdnSynchronizationContext(current, waitForMultipleObjectsExCallback, sleepExCallback);
if (Interlocked.CompareExchange <PdnSynchronizationContext>(ref instance, context, null) != null)
{
ExceptionUtil.ThrowInvalidOperationException("Install() may only be called once");
}
SynchronizationContext.SetSynchronizationContext(context);
context.isInstalled = true;
return(new PdnSynchronizationContextController(context));
}
