예제 #1
0
  public void testRefcount2() throws Exception {
    Prot p1 = new Prot("P1"), p2 = new Prot("P2");
    fc1 = new ForkChannel(ch, "stack", "fc1", p1, p2);
    fc2 = new ForkChannel(ch, "stack", "fc2"); // uses p1 and p2 from fc1
    fc3 = new ForkChannel(ch, "stack", "fc3"); // uses p1 and p2 from fc1

    assert p1.inits == 1 && p2.inits == 1;

    FORK fork = (FORK) ch.getProtocolStack().findProtocol(FORK.class);
    Protocol prot = fork.get("stack");
    ForkProtocolStack fork_stack = (ForkProtocolStack) getProtStack(prot);
    int inits = fork_stack.getInits();
    assert inits == 3;

    ch.connect(CLUSTER);
    fc1.connect(CLUSTER);
    int connects = fork_stack.getConnects();
    assert connects == 1;
    assert p1.starts == 1 && p2.starts == 1;

    fc2.connect(CLUSTER);
    fc3.connect(CLUSTER);
    connects = fork_stack.getConnects();
    assert connects == 3;
    assert p1.starts == 1 && p2.starts == 1;

    fc3.disconnect();
    fc2.disconnect();
    assert p1.starts == 1 && p2.starts == 1;
    assert p1.stops == 0 && p2.stops == 0;

    fc1.disconnect();
    assert p1.starts == 1 && p2.starts == 1;
    assert p1.stops == 1 && p2.stops == 1;

    Util.close(fc3, fc2);
    assert p1.destroys == 0 && p2.destroys == 0;

    Util.close(fc1);
    assert p1.destroys == 1 && p2.destroys == 1;
  }
예제 #2
0
파일: FORK.java 프로젝트: xiongrl/JGroups
  protected void getStateFromMainAndForkChannels(Event evt) {
    final OutputStream out = (OutputStream) evt.getArg();

    try (DataOutputStream dos = new DataOutputStream(out)) {
      getStateFrom(null, up_prot, null, null, dos);

      // now fetch state from all fork channels
      for (Map.Entry<String, Protocol> entry : fork_stacks.entrySet()) {
        String stack_name = entry.getKey();
        Protocol prot = entry.getValue();
        ForkProtocolStack fork_stack = getForkStack(prot);
        for (Map.Entry<String, JChannel> en : fork_stack.getForkChannels().entrySet()) {
          String fc_name = en.getKey();
          JChannel fc = en.getValue();
          getStateFrom(fc, null, stack_name, fc_name, dos);
        }
      }
    } catch (Throwable ex) {
      log.error("%s: failed fetching state from main channel", local_addr, ex);
    }
  }
예제 #3
0
파일: FORK.java 프로젝트: xiongrl/JGroups
 protected void setStateInMainAndForkChannels(InputStream in) {
   try (DataInputStream input = new DataInputStream(in)) {
     for (; ; ) {
       String stack_name = Bits.readString(input);
       String ch_name = Bits.readString(input);
       int len = input.readInt();
       if (len > 0) {
         byte[] data = new byte[len];
         in.read(data, 0, len);
         ByteArrayInputStream tmp = new ByteArrayInputStream(data, 0, len);
         if (stack_name == null && ch_name == null)
           up_prot.up(new Event(Event.STATE_TRANSFER_INPUTSTREAM, tmp));
         else {
           Protocol prot = fork_stacks.get(stack_name);
           if (prot == null) {
             log.warn(
                 "%s: fork stack %s not found, dropping state for %s:%s",
                 local_addr, stack_name, stack_name, ch_name);
             continue;
           }
           ForkProtocolStack fork_stack = getForkStack(prot);
           JChannel fork_ch = fork_stack.get(ch_name);
           if (fork_ch == null) {
             log.warn(
                 "%s: fork channel %s not found, dropping state for %s:%s",
                 local_addr, ch_name, stack_name, ch_name);
             continue;
           }
           fork_ch.up(new Event(Event.STATE_TRANSFER_INPUTSTREAM, tmp));
         }
       }
     }
   } catch (EOFException eof) {
   } catch (Throwable ex) {
     log.error("%s: failed setting state in main channel", local_addr, ex);
   }
 }
예제 #4
0
파일: FORK.java 프로젝트: xiongrl/JGroups
  /**
   * Returns the fork stack for fork_stack_id (if exitstent), or creates a new fork-stack from
   * protocols and adds it into the hashmap of fork-stack (key is fork_stack_id). Method init() will
   * be called on each protocol, from bottom to top.
   *
   * @param fork_stack_id The key under which the new fork-stack should be added to the fork-stacks
   *     hashmap
   * @param protocols A list of protocols from <em>bottom to top</em> to be inserted. They will be
   *     sandwiched between ForkProtocolStack (top) and ForkProtocol (bottom). The list can be empty
   *     (or null) in which case we won't create any protocols, but still have a separate fork-stack
   *     inserted.
   * @param initialize If false, the ref count 'inits' will not get incremented and init() won't be
   *     called. This is needed when creating a fork stack from an XML config inside of the FORK
   *     protocol. The protocols in the fork stack will only get initialized on the first
   *     ForkChannel creation
   * @return The new {@link ForkProtocolStack}, or the existing stack (if present)
   */
  public synchronized ProtocolStack createForkStack(
      String fork_stack_id, List<Protocol> protocols, boolean initialize) throws Exception {
    Protocol bottom;
    if ((bottom = get(fork_stack_id)) != null) {
      ForkProtocolStack retval = getForkStack(bottom);
      return initialize ? retval.incrInits() : retval;
    }

    List<Protocol> prots = new ArrayList<>();
    prots.add(
        bottom =
            new ForkProtocol(fork_stack_id)
                .setDownProtocol(this)); // add a ForkProtocol as bottom protocol
    if (protocols != null) prots.addAll(protocols);

    ForkProtocolStack fork_stack =
        (ForkProtocolStack)
            new ForkProtocolStack(getUnknownForkHandler(), prots, fork_stack_id)
                .setChannel(this.stack.getChannel());
    fork_stack.init();
    if (initialize) fork_stack.incrInits();
    fork_stacks.put(fork_stack_id, bottom);
    return fork_stack;
  }
예제 #5
0
  public void testRefcount() throws Exception {
    FORK fork = (FORK) ch.getProtocolStack().findProtocol(FORK.class);
    Protocol prot = fork.get("stack");
    assert prot == null;
    fc1 = new ForkChannel(ch, "stack", "fc1");
    prot = fork.get("stack");
    assert prot != null;
    ForkProtocolStack fork_stack = (ForkProtocolStack) getProtStack(prot);
    int inits = fork_stack.getInits();
    assert inits == 1 : "inits is " + inits + "(expected 1)";

    fc2 = new ForkChannel(ch, "stack", "fc2"); // uses the same fork stack "stack"
    inits = fork_stack.getInits();
    assert inits == 2 : "inits is " + inits + "(expected 2)";

    ch.connect(CLUSTER);

    fc1.connect(CLUSTER);
    int connects = fork_stack.getConnects();
    assert connects == 1 : "connects is " + connects + "(expected 1)";

    fc1.connect(CLUSTER); // duplicate connect()
    connects = fork_stack.getConnects();
    assert connects == 1 : "connects is " + connects + "(expected 1)";

    fc2.connect(CLUSTER);
    connects = fork_stack.getConnects();
    assert connects == 2 : "connects is " + connects + "(expected 2)";

    fc2.disconnect();
    fc2.disconnect(); // duplicate disconnect() !
    connects = fork_stack.getConnects();
    assert connects == 1 : "connects is " + connects + "(expected 1)";

    Util.close(fc2);
    inits = fork_stack.getInits();
    assert inits == 1 : "inits is " + inits + "(expected 1)";

    Util.close(fc2); // duplicate close()
    inits = fork_stack.getInits();
    assert inits == 1 : "inits is " + inits + "(expected 1)";

    Util.close(fc1);
    connects = fork_stack.getConnects();
    assert connects == 0 : "connects is " + connects + "(expected 0)";
    inits = fork_stack.getInits();
    assert inits == 0 : "inits is " + inits + "(expected 0)";

    prot = fork.get("stack");
    assert prot == null;
  }