Esempio n. 1
0
 /**
  * @return if <0, then this pipe should be stopped. If ==0, it should not wait. If >0, if it
  *     should wait
  */
 int execute() {
   if (!lock.tryAcquire()) return 1; // currently being accessed
   Thread myThread = Thread.currentThread();
   int threadIndex = -1;
   for (int i = 0; i < threads.length; i++) {
     if (threads[i] == null) {
       threads[i] = myThread;
       threadIndex = i;
       break;
     }
     if (myThread != threads[i]) continue;
     threadIndex = i;
     break;
   }
   Signal signal;
   if (threadIndex < 0) {
     signal = dummySignal;
   } else {
     SignalImpl s = signals[threadIndex];
     s.threadIndex = threadIndex;
     s.signaled = false;
     signal = s;
   }
   boolean hasData;
   try {
     hasData = poll(signal, null);
   } finally {
     signal.signal();
     if (threadIndex < 0) lock.release();
   }
   return 0;
 }
Esempio n. 2
0
 @Override
 public boolean setConsumers(List<Consumer<S>> list, long time, TimeUnit unit)
     throws IllegalArgumentException {
   if (list == null) throw new IllegalArgumentException("consumer list is not set");
   for (Consumer<S> consumer : list) {
     if (consumer == null) throw new IllegalArgumentException("consumer is null");
   }
   try {
     if (!lock.tryAcquire(time, unit)) throw new IllegalArgumentException("can't lock producer");
   } catch (InterruptedException e) {
     return false;
   }
   try {
     return setConsumers(list);
   } catch (InterruptedException e) {
     logger.warn("setting consumer", e);
   } finally {
     lock.release();
   }
   return false;
 }
Esempio n. 3
0
 @Override
 @SuppressWarnings({"unchecked"})
 public void shutdown(long time, TimeUnit unit) {
   started = false;
   try {
     lock.tryAcquire(time, unit);
   } catch (InterruptedException e) {
     logger.warn("shutdown", e);
   }
   if (group != null) group.interrupt();
   consumers = new Consumer[0];
   consumerSeqs = new long[0];
   outUse = new AtomicLongArray(0);
   executor.shutdown();
 }
Esempio n. 4
0
  public void start() {
    inputs = new AtomicReferenceArray<>(0);
    outputs = inputs;
    freeReceptors = new CopyOnWriteArrayList<>();
    sequence = 0;
    finalSequence = 0;
    finalProduct = null;
    reuseReceptors = new ArrayList<>(0);
    executor = Executors.newSingleThreadExecutor();

    started = true;
    if (poolSize > 0) {
      group = new ThreadGroup("FatPipe");
      group.setMaxPriority(Thread.MAX_PRIORITY);
    }
    signals = new SignalImpl[ARBITARY_THREADS + poolSize];
    threads = new Thread[ARBITARY_THREADS + poolSize];
    startTime = System.currentTimeMillis();
    sleptTime = 0;
    toSleepTime = 0;

    for (int i = 0; i < poolSize; i++) {
      Thread t = new Thread(group, this, name + "-" + i);
      t.setDaemon(true);
      threads[i] = t;
      t.start();
      if (sleep == 0) t.setPriority(Thread.MAX_PRIORITY);
      else if (sleep < 0) t.setPriority(Thread.NORM_PRIORITY);
      else t.setPriority(Thread.MIN_PRIORITY);
    }
    for (int i = 0; i < signals.length; i++) {
      signals[i] = new SignalImpl(lock);
    }
    if (pool != null) pool.add(this);
    lock.release();
  }