public static bool UnsafeQueueUserWorkItem(WaitCallback callBack, object state)
{
// no stack propagation here (that's why it's unsafe and requires extra security permissions)
IAsyncResult ar = null;
try {
if (!ExecutionContext.IsFlowSuppressed())
{
ExecutionContext.SuppressFlow(); // on current thread only
}
ar = callBack.BeginInvoke(state, null, null);
}
finally {
if (ExecutionContext.IsFlowSuppressed())
{
ExecutionContext.RestoreFlow();
}
}
return(ar != null);
}
public static bool UnsafeQueueUserWorkItem(WaitCallback callBack, object state)
{
if (Microsoft.ThreadPool.UseMicrosoftThreadPool)
{
return(Microsoft.ThreadPool.UnsafeQueueUserWorkItem(callBack, state));
}
else
{
if (callBack == null)
{
throw new ArgumentNullException("callBack");
}
// no stack propagation here (that's why it's unsafe and requires extra security permissions)
if (!callBack.IsTransparentProxy())
{
AsyncResult ares = new AsyncResult(callBack, state, false);
pool_queue(ares);
return(true);
}
try {
if (!ExecutionContext.IsFlowSuppressed())
{
ExecutionContext.SuppressFlow(); // on current thread only
}
IAsyncResult ar = callBack.BeginInvoke(state, null, null);
if (ar == null)
{
return(false);
}
} finally {
if (ExecutionContext.IsFlowSuppressed())
{
ExecutionContext.RestoreFlow();
}
}
return(true);
}
}
