public long CheckRemaining()
{
var remaining = _targetTime - ThreadingHelper.Milliseconds(ThreadingHelper.TicksNow());
if (remaining <= 0)
{
Finish(null);
return(0);
}
return(remaining);
}
public bool Change(long dueTime)
{
if (Interlocked.CompareExchange(ref _status, _changing, _created) == _created)
{
_startTime = ThreadingHelper.Milliseconds(ThreadingHelper.TicksNow());
_targetTime = _startTime + dueTime;
var wrapped = Interlocked.CompareExchange(ref _wrapped, null, null);
if (wrapped == null)
{
return(false);
}
wrapped.Change(TimeSpan.FromMilliseconds(dueTime), TimeSpan.FromMilliseconds(-1));
Volatile.Write(ref _status, _created);
return(true);
}
return(false);
}
protected void Start(long dueTime)
{
_startTime = ThreadingHelper.Milliseconds(ThreadingHelper.TicksNow());
_targetTime = _startTime + dueTime;
_wrapped = new Timer(Finish, null, TimeSpan.FromMilliseconds(dueTime), TimeSpan.FromMilliseconds(-1));
}
