internal void Initialize()
{
// The _workItemState is changed directly instead of using the SetWorkItemState
// method since we don't want to go throught IsValidStateTransition.
_workItemState = WorkItemState.InQueue;
_workItemCompleted = null;
_workItemCompletedRefCount = 0;
_waitingOnQueueStopwatch = new Stopwatch();
_processingStopwatch = new Stopwatch();
_expirationTime =
_workItemInfo.Timeout > 0 ?
DateTime.UtcNow.Ticks + _workItemInfo.Timeout * TimeSpan.TicksPerMillisecond :
long.MaxValue;
}