Пример #1
0
  public static void main(String[] argv) throws Exception {
    Pipe[] pipes = new Pipe[PIPES_COUNT];
    Pipe pipe = Pipe.open();
    Pipe.SinkChannel sink = pipe.sink();
    Pipe.SourceChannel source = pipe.source();
    Selector sel = Selector.open();
    source.configureBlocking(false);
    source.register(sel, SelectionKey.OP_READ);

    for (int i = 0; i < PIPES_COUNT; i++) {
      pipes[i] = Pipe.open();
      Pipe.SourceChannel sc = pipes[i].source();
      sc.configureBlocking(false);
      sc.register(sel, SelectionKey.OP_READ);
      Pipe.SinkChannel sc2 = pipes[i].sink();
      sc2.configureBlocking(false);
      sc2.register(sel, SelectionKey.OP_WRITE);
    }

    for (int i = 0; i < LOOPS; i++) {
      sink.write(ByteBuffer.allocate(BUF_SIZE));
      int x = sel.selectNow();
      sel.selectedKeys().clear();
      source.read(ByteBuffer.allocate(BUF_SIZE));
    }

    for (int i = 0; i < PIPES_COUNT; i++) {
      pipes[i].sink().close();
      pipes[i].source().close();
    }
    pipe.sink().close();
    pipe.source().close();
    sel.close();
  }
Пример #2
0
  void checkIO() {
    long timeout;

    if (NewConnections.size() > 0) {
      timeout = -1;
    } else if (!Timers.isEmpty()) {
      long now = new Date().getTime();
      long k = Timers.firstKey();
      long diff = k - now;

      if (diff <= 0) timeout = -1; // don't wait, just poll once
      else timeout = diff;
    } else {
      timeout = 0; // wait indefinitely
    }

    try {
      if (timeout == -1) mySelector.selectNow();
      else mySelector.select(timeout);
    } catch (IOException e) {
      e.printStackTrace();
    }
  }