/** @param workTokDir Token directory (common for multiple nodes). */
    private void cleanupResources(File workTokDir) {
      RandomAccessFile lockFile = null;

      FileLock lock = null;

      try {
        lockFile = new RandomAccessFile(new File(workTokDir, LOCK_FILE_NAME), "rw");

        lock = lockFile.getChannel().lock();

        if (lock != null) processTokenDirectory(workTokDir);
        else if (log.isDebugEnabled())
          log.debug(
              "Token directory is being processed concurrently: " + workTokDir.getAbsolutePath());
      } catch (OverlappingFileLockException ignored) {
        if (log.isDebugEnabled())
          log.debug(
              "Token directory is being processed concurrently: " + workTokDir.getAbsolutePath());
      } catch (FileLockInterruptionException ignored) {
        Thread.currentThread().interrupt();
      } catch (IOException e) {
        U.error(log, "Failed to process directory: " + workTokDir.getAbsolutePath(), e);
      } finally {
        U.releaseQuiet(lock);
        U.closeQuiet(lockFile);
      }
    }
  /*
   * Launches against the agent
   */
  public void testSimpleLauncher() throws Exception {
    Project project = workspace.getProject("p1");
    Run bndrun = new Run(workspace, project.getBase(), project.getFile("one.bndrun"));
    bndrun.setProperty("-runpath", "biz.aQute.remote.launcher");
    bndrun.setProperty("-runbundles", "bsn-1,bsn-2");
    bndrun.setProperty("-runremote", "test");

    final RemoteProjectLauncherPlugin pl =
        (RemoteProjectLauncherPlugin) bndrun.getProjectLauncher();
    pl.prepare();
    final CountDownLatch latch = new CountDownLatch(1);
    final AtomicInteger exitCode = new AtomicInteger(-1);

    List<? extends RunSession> sessions = pl.getRunSessions();
    assertEquals(1, sessions.size());

    final RunSession session = sessions.get(0);

    Thread t =
        new Thread("test-launch") {
          public void run() {
            try {
              exitCode.set(session.launch());
            } catch (Exception e) {
              e.printStackTrace();
            } finally {
              latch.countDown();
            }
          }
        };
    t.start();
    Thread.sleep(500);

    for (Bundle b : context.getBundles()) {
      System.out.println(b.getLocation());
    }
    assertEquals(4, context.getBundles().length);
    String p1 = t1.getAbsolutePath();
    System.out.println(p1);

    assertNotNull(context.getBundle(p1));
    assertNotNull(context.getBundle(t2.getAbsolutePath()));

    pl.cancel();
    latch.await();

    assertEquals(-3, exitCode.get());

    bndrun.close();
  }
  @Override
  protected void setUp() throws Exception {
    tmp = IO.getFile("generated/tmp");
    tmp.mkdirs();
    IO.copy(IO.getFile("testdata/ws"), tmp);
    workspace = Workspace.getWorkspace(tmp);
    workspace.refresh();

    InfoRepository repo = workspace.getPlugin(InfoRepository.class);
    t1 = create("bsn-1", new Version(1, 0, 0));
    t2 = create("bsn-2", new Version(1, 0, 0));

    repo.put(new FileInputStream(t1), null);
    repo.put(new FileInputStream(t2), null);
    t1 = repo.get("bsn-1", new Version(1, 0, 0), null);
    t2 = repo.get("bsn-2", new Version(1, 0, 0), null);
    repo.put(new FileInputStream(IO.getFile("generated/biz.aQute.remote.launcher.jar")), null);

    workspace.getPlugins().add(repo);

    File storage = IO.getFile("generated/storage-1");
    storage.mkdirs();

    configuration = new HashMap<String, Object>();
    configuration.put(
        Constants.FRAMEWORK_STORAGE_CLEAN, Constants.FRAMEWORK_STORAGE_CLEAN_ONFIRSTINIT);
    configuration.put(Constants.FRAMEWORK_STORAGE, storage.getAbsolutePath());

    configuration.put(
        Constants.FRAMEWORK_SYSTEMPACKAGES_EXTRA, "org.osgi.framework.launch;version=1.2");

    framework = new org.apache.felix.framework.FrameworkFactory().newFramework(configuration);
    framework.init();
    framework.start();
    context = framework.getBundleContext();
    location = "reference:" + IO.getFile("generated/biz.aQute.remote.agent.jar").toURI().toString();
    agent = context.installBundle(location);
    agent.start();

    thread =
        new Thread() {
          @Override
          public void run() {
            try {
              Main.main(
                  new String[] {
                    "-s", "generated/storage", "-c", "generated/cache", "-p", "1090", "-et"
                  });
            } catch (Exception e) {
              e.printStackTrace();
            }
          }
        };
    thread.setDaemon(true);
    thread.start();

    super.setUp();
  }
  /** {@inheritDoc} */
  @Override
  public void start() throws IgniteCheckedException {
    IpcSharedMemoryNativeLoader.load(log);

    pid = IpcSharedMemoryUtils.pid();

    if (pid == -1) throw new IpcEndpointBindException("Failed to get PID of the current process.");

    if (size <= 0) throw new IpcEndpointBindException("Space size should be positive: " + size);

    String tokDirPath = this.tokDirPath;

    if (F.isEmpty(tokDirPath)) throw new IpcEndpointBindException("Token directory path is empty.");

    tokDirPath = tokDirPath + '/' + locNodeId.toString() + '-' + IpcSharedMemoryUtils.pid();

    tokDir = U.resolveWorkDirectory(tokDirPath, false);

    if (port <= 0 || port >= 0xffff)
      throw new IpcEndpointBindException("Port value is illegal: " + port);

    try {
      srvSock = new ServerSocket();

      // Always bind to loopback.
      srvSock.bind(new InetSocketAddress("127.0.0.1", port));
    } catch (IOException e) {
      // Although empty socket constructor never throws exception, close it just in case.
      U.closeQuiet(srvSock);

      throw new IpcEndpointBindException(
          "Failed to bind shared memory IPC endpoint (is port already " + "in use?): " + port, e);
    }

    gcWorker = new GcWorker(gridName, "ipc-shmem-gc", log);

    new IgniteThread(gcWorker).start();

    if (log.isInfoEnabled())
      log.info(
          "IPC shared memory server endpoint started [port="
              + port
              + ", tokDir="
              + tokDir.getAbsolutePath()
              + ']');
  }
    /** @param workTokDir Token directory (common for multiple nodes). */
    private void processTokenDirectory(File workTokDir) {
      for (File f : workTokDir.listFiles()) {
        if (!f.isDirectory()) {
          if (!f.getName().equals(LOCK_FILE_NAME)) {
            if (log.isDebugEnabled()) log.debug("Unexpected file: " + f.getName());
          }

          continue;
        }

        if (f.equals(tokDir)) {
          if (log.isDebugEnabled()) log.debug("Skipping own token directory: " + tokDir.getName());

          continue;
        }

        String name = f.getName();

        int pid;

        try {
          pid = Integer.parseInt(name.substring(name.lastIndexOf('-') + 1));
        } catch (NumberFormatException ignored) {
          if (log.isDebugEnabled()) log.debug("Failed to parse file name: " + name);

          continue;
        }

        // Is process alive?
        if (IpcSharedMemoryUtils.alive(pid)) {
          if (log.isDebugEnabled()) log.debug("Skipping alive node: " + pid);

          continue;
        }

        if (log.isDebugEnabled()) log.debug("Possibly stale token folder: " + f);

        // Process each token under stale token folder.
        File[] shmemToks = f.listFiles();

        if (shmemToks == null)
          // Although this is strange, but is reproducible sometimes on linux.
          return;

        int rmvCnt = 0;

        try {
          for (File f0 : shmemToks) {
            if (log.isDebugEnabled()) log.debug("Processing token file: " + f0.getName());

            if (f0.isDirectory()) {
              if (log.isDebugEnabled()) log.debug("Unexpected directory: " + f0.getName());
            }

            // Token file format: gg-shmem-space-[auto_idx]-[other_party_pid]-[size]
            String[] toks = f0.getName().split("-");

            if (toks.length != 6) {
              if (log.isDebugEnabled()) log.debug("Unrecognized token file: " + f0.getName());

              continue;
            }

            int pid0;
            int size;

            try {
              pid0 = Integer.parseInt(toks[4]);
              size = Integer.parseInt(toks[5]);
            } catch (NumberFormatException ignored) {
              if (log.isDebugEnabled()) log.debug("Failed to parse file name: " + name);

              continue;
            }

            if (IpcSharedMemoryUtils.alive(pid0)) {
              if (log.isDebugEnabled()) log.debug("Skipping alive process: " + pid0);

              continue;
            }

            if (log.isDebugEnabled()) log.debug("Possibly stale token file: " + f0);

            IpcSharedMemoryUtils.freeSystemResources(f0.getAbsolutePath(), size);

            if (f0.delete()) {
              if (log.isDebugEnabled()) log.debug("Deleted file: " + f0.getName());

              rmvCnt++;
            } else if (!f0.exists()) {
              if (log.isDebugEnabled())
                log.debug("File has been concurrently deleted: " + f0.getName());

              rmvCnt++;
            } else if (log.isDebugEnabled()) log.debug("Failed to delete file: " + f0.getName());
          }
        } finally {
          // Assuming that no new files can appear, since
          if (rmvCnt == shmemToks.length) {
            U.delete(f);

            if (log.isDebugEnabled()) log.debug("Deleted empty token directory: " + f.getName());
          }
        }
      }
    }