How to use

TemporarySelectorPool

in

org.glassfish.grizzly.nio.tmpselectors

public void offer(Selector selector) {
  if (selector == null) {
    return;
  }
  
  final boolean wasReturned;
  if (poolSize.getAndIncrement() < maxPoolSize
      && (selector = checkSelector(selector)) != null) {
    selectors.offer(selector);
    wasReturned = true;
  } else {
    poolSize.decrementAndGet();
    
    if (selector == null) {
      return;
    }
    
    wasReturned = false;
  }
  if (isClosed.get()) {
    if (selectors.remove(selector)) {
      closeSelector(selector);
    }
  } else if (!wasReturned) {
    closeSelector(selector);
  }
}

  protected void recycleTemporaryArtifacts(Selector selector,
      SelectionKey selectionKey) {
    
    if (selectionKey != null) {
      try {
        selectionKey.cancel();
      } catch (Exception e) {
        LOGGER.log(Level.WARNING,
            LogMessages.WARNING_GRIZZLY_TEMPORARY_SELECTOR_IO_CANCEL_KEY_EXCEPTION(selectionKey),
            e);
      }
    }

    if (selector != null) {
      selectorPool.offer(selector);
    }
  }
}

getSelectorPool().poll();

public synchronized void close() {
  if (!isClosed.getAndSet(true)) {
    Selector selector;
    while ((selector = selectors.poll()) != null) {
      closeSelector(selector);
    }
  }
}

new TemporarySelectorPool(selectorProvider,
             selectorPoolSize));

getSelectorPool().poll();

public synchronized void close() {
  if (!isClosed.getAndSet(true)) {
    Selector selector;
    while ((selector = selectors.poll()) != null) {
      closeSelector(selector);
    }
  }
}

new TemporarySelectorPool(selectorProvider,
             selectorPoolSize));

public void offer(Selector selector) {
  if (selector == null) {
    return;
  }
  
  final boolean wasReturned;
  if (poolSize.getAndIncrement() < maxPoolSize
      && (selector = checkSelector(selector)) != null) {
    selectors.offer(selector);
    wasReturned = true;
  } else {
    poolSize.decrementAndGet();
    
    if (selector == null) {
      return;
    }
    
    wasReturned = false;
  }
  if (isClosed.get()) {
    if (selectors.remove(selector)) {
      closeSelector(selector);
    }
  } else if (!wasReturned) {
    closeSelector(selector);
  }
}

getSelectorPool().poll();

public synchronized void close() {
  if (!isClosed.getAndSet(true)) {
    Selector selector;
    while ((selector = selectors.poll()) != null) {
      closeSelector(selector);
    }
  }
}

  protected void recycleTemporaryArtifacts(Selector selector,
      SelectionKey selectionKey) {
    
    if (selectionKey != null) {
      try {
        selectionKey.cancel();
      } catch (Exception e) {
        LOGGER.log(Level.WARNING,
            LogMessages.WARNING_GRIZZLY_TEMPORARY_SELECTOR_IO_CANCEL_KEY_EXCEPTION(selectionKey),
            e);
      }
    }

    if (selector != null) {
      selectorPool.offer(selector);
    }
  }
}

new TemporarySelectorPool(selectorProvider,
             selectorPoolSize));

public void offer(Selector selector) {
  if (selector == null) {
    return;
  }
  
  final boolean wasReturned;
  if (poolSize.getAndIncrement() < maxPoolSize
      && (selector = checkSelector(selector)) != null) {
    selectors.offer(selector);
    wasReturned = true;
  } else {
    poolSize.decrementAndGet();
    
    if (selector == null) {
      return;
    }
    
    wasReturned = false;
  }
  if (isClosed.get()) {
    if (selectors.remove(selector)) {
      closeSelector(selector);
    }
  } else if (!wasReturned) {
    closeSelector(selector);
  }
}

getSelectorPool().poll();

public synchronized void close() {
  if (!isClosed.getAndSet(true)) {
    Selector selector;
    while ((selector = selectors.poll()) != null) {
      closeSelector(selector);
    }
  }
}

  protected void recycleTemporaryArtifacts(Selector selector,
      SelectionKey selectionKey) {
    
    if (selectionKey != null) {
      try {
        selectionKey.cancel();
      } catch (Exception e) {
        LOGGER.log(Level.WARNING,
            LogMessages.WARNING_GRIZZLY_TEMPORARY_SELECTOR_IO_CANCEL_KEY_EXCEPTION(selectionKey),
            e);
      }
    }

    if (selector != null) {
      selectorPool.offer(selector);
    }
  }
}

new TemporarySelectorPool(selectorProvider,
             selectorPoolSize));

public void offer(Selector selector) {
  if (selector == null) {
    return;
  }
  
  final boolean wasReturned;
  if (poolSize.getAndIncrement() < maxPoolSize
      && (selector = checkSelector(selector)) != null) {
    selectors.offer(selector);
    wasReturned = true;
  } else {
    poolSize.decrementAndGet();
    
    if (selector == null) {
      return;
    }
    
    wasReturned = false;
  }
  if (isClosed.get()) {
    if (selectors.remove(selector)) {
      closeSelector(selector);
    }
  } else if (!wasReturned) {
    closeSelector(selector);
  }
}

getSelectorPool().poll();