public bool Wait(int milliseconds, CancellationToken cancellationToken)
{
if (milliseconds < -1)
{
throw new ArgumentOutOfRangeException(nameof(milliseconds));
}
if (milliseconds == -1)
{
Wait(cancellationToken);
return(true);
}
var start = ThreadingHelper.TicksNow();
do
{
CancellationCheck(cancellationToken);
switch (Status)
{
case TaskStatus.WaitingForActivation:
WaitAntecedent(cancellationToken, milliseconds, start);
ExecutingTaskScheduler.InternalTryExecuteTaskInline(this, true);
break;
case TaskStatus.Created:
case TaskStatus.WaitingToRun:
case TaskStatus.Running:
case TaskStatus.WaitingForChildrenToComplete:
var waitHandle = _waitHandle.Value;
waitHandle?.Wait
(
TimeSpan.FromMilliseconds
(
milliseconds - ThreadingHelper.Milliseconds(ThreadingHelper.TicksNow() - start)
),
cancellationToken
);
break;
case TaskStatus.RanToCompletion:
return(true);
case TaskStatus.Canceled:
ThrowIfExceptional(true);
return(true);
case TaskStatus.Faulted:
ThrowIfExceptional(true);
return(true);
default:
// Should not happen
continue;
}
} while (ThreadingHelper.Milliseconds(ThreadingHelper.TicksNow() - start) < milliseconds);
switch (Status)
{
case TaskStatus.RanToCompletion:
return(true);
case TaskStatus.Canceled:
ThrowIfExceptional(true);
return(true);
case TaskStatus.Faulted:
ThrowIfExceptional(true);
return(true);
default:
return(false);
}
}
