/// <summary>
/// Metodo bool Put(T t, int timeout), que insere t na fila, bloquando-se no maximo t milisegundos caso
/// não exista espaco disponvel
/// </summary>
/// <param name="t"></param>
/// <param name="timeout"></param>
/// <returns></returns>
public bool Put(T t, int timeout)
{
lock (this)
{
if (_closing || _closed)
{
throw new InvalidOperationException("Queue is no longuer acepting items");
}
int lastTime = timeout == Timeout.Infinite ? 0 : Environment.TickCount;
while (_queue.Count == MAX_SIZE)
{
Monitor.Wait(this, timeout);
if (SyncUtils.AdjustTimeout(lastTime, ref timeout) == 0)
{
return(false);
}
}
if (_closing || _closed)
{
throw new InvalidOperationException("Queue is no longuer acepting items");
}
_queue.Enqueue(t);
#if DEBUG
Console.WriteLine("enqueued [{0}] queue size={1}", t, _queue.Count());
#endif
Monitor.PulseAll(this);
return(true);
}
}
/// <summary>
/// Metodo T Get(int timetout), que retira um elemento da fila, bloqueando-se no maximo t milisegundos
/// caso esse elemento não esteja imediatamente disponvel
/// </summary>
/// <param name="timeout"></param>
/// <returns></returns>
public T Get(int timeout)
{
lock (this)
{
int lastTime = timeout == Timeout.Infinite ? 0 : Environment.TickCount;
while (_queue.Count == 0)
{
Monitor.Wait(this, timeout);
if (SyncUtils.AdjustTimeout(lastTime, ref timeout) == 0)
{
throw new TimeoutException();
}
}
T t = _queue.Dequeue();
#if DEBUG
Console.WriteLine("dequeued [{0}] queue size={1}", t, _queue.Count());
#endif
Monitor.PulseAll(this);
return(t);
}
}