Exemplo n.º 1
0
 private void NotifyIfNeeded()
 {
     if (q.Count > 0 && units >= q.First.Value)
     {
         SyncUtils.Notify(mutex, q.First);
     }
 }
Exemplo n.º 2
0
 public bool Acquire(int requestedUnits, int timeout)
 {
     lock (mutex)
     {
         if (units >= requestedUnits && q.Count == 0)
         {
             units -= requestedUnits;
             return(true);
         }
         var            node  = q.AddLast(requestedUnits);
         TimeoutInstant limit = new TimeoutInstant(timeout);
         do
         {
             try
             {
                 SyncUtils.Wait(mutex, node, limit.Remaining);
             }
             catch (ThreadInterruptedException)
             {
                 q.Remove(node);
                 NotifyIfNeeded();
                 throw;
             }
             if (node == q.First && units >= requestedUnits)
             {
                 q.RemoveFirst();
                 units -= requestedUnits;
                 NotifyIfNeeded();
                 return(true);
             }
             if (limit.IsTimeout)
             {
                 q.Remove(node);
                 NotifyIfNeeded();
                 return(false);
             }
         } while (true);
     }
 }