Exemple #1
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  public void exceptionRaised(RaiseException exception) {
    assert isCurrent();

    RubyException rubyException = exception.getException();
    Ruby runtime = rubyException.getRuntime();
    if (runtime.getSystemExit().isInstance(rubyException)) {
      runtime
          .getThreadService()
          .getMainThread()
          .raise(new IRubyObject[] {rubyException}, Block.NULL_BLOCK);
    } else if (abortOnException(runtime)) {
      RubyException systemExit;

      if (!runtime.is1_9()) {
        runtime.printError(rubyException);

        systemExit = RubySystemExit.newInstance(runtime, 1);
        systemExit.message = rubyException.message;
        systemExit.set_backtrace(rubyException.backtrace());
      } else {
        systemExit = rubyException;
      }

      runtime
          .getThreadService()
          .getMainThread()
          .raise(new IRubyObject[] {systemExit}, Block.NULL_BLOCK);
      return;
    } else if (runtime.getDebug().isTrue()) {
      runtime.printError(exception.getException());
    }
    exitingException = exception;
  }
Exemple #2
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  private static RubyThread adoptThread(final IRubyObject recv, Thread t, Block block) {
    final Ruby runtime = recv.getRuntime();
    final RubyThread rubyThread = new RubyThread(runtime, (RubyClass) recv);

    rubyThread.threadImpl = new NativeThread(rubyThread, t);
    ThreadContext context = runtime.getThreadService().registerNewThread(rubyThread);
    runtime.getThreadService().associateThread(t, rubyThread);

    context.preAdoptThread();

    // set to default thread group
    runtime.getDefaultThreadGroup().addDirectly(rubyThread);

    return rubyThread;
  }
Exemple #3
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  @JRubyMethod(rest = true, visibility = PRIVATE)
  public IRubyObject initialize(ThreadContext context, IRubyObject[] args, Block block) {
    Ruby runtime = getRuntime();
    if (!block.isGiven()) throw runtime.newThreadError("must be called with a block");

    try {
      RubyRunnable runnable = new RubyRunnable(this, args, context.getFrames(0), block);
      if (RubyInstanceConfig.POOLING_ENABLED) {
        FutureThread futureThread = new FutureThread(this, runnable);
        threadImpl = futureThread;

        addToCorrectThreadGroup(context);

        threadImpl.start();

        // JRUBY-2380, associate future early so it shows up in Thread.list right away, in case it
        // doesn't run immediately
        runtime.getThreadService().associateThread(futureThread.getFuture(), this);
      } else {
        Thread thread = new Thread(runnable);
        thread.setDaemon(true);
        thread.setName(
            "Ruby" + thread.getName() + ": " + context.getFile() + ":" + (context.getLine() + 1));
        threadImpl = new NativeThread(this, thread);

        addToCorrectThreadGroup(context);

        // JRUBY-2380, associate thread early so it shows up in Thread.list right away, in case it
        // doesn't run immediately
        runtime.getThreadService().associateThread(thread, this);

        threadImpl.start();
      }

      // We yield here to hopefully permit the target thread to schedule
      // MRI immediately schedules it, so this is close but not exact
      Thread.yield();

      return this;
    } catch (OutOfMemoryError oome) {
      if (oome.getMessage().equals("unable to create new native thread")) {
        throw runtime.newThreadError(oome.getMessage());
      }
      throw oome;
    } catch (SecurityException ex) {
      throw runtime.newThreadError(ex.getMessage());
    }
  }
Exemple #4
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  public static RubyClass createThreadClass(Ruby runtime) {
    // FIXME: In order for Thread to play well with the standard 'new' behavior,
    // it must provide an allocator that can create empty object instances which
    // initialize then fills with appropriate data.
    RubyClass threadClass =
        runtime.defineClass(
            "Thread", runtime.getObject(), ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR);
    runtime.setThread(threadClass);

    threadClass.index = ClassIndex.THREAD;
    threadClass.setReifiedClass(RubyThread.class);

    threadClass.defineAnnotatedMethods(RubyThread.class);

    RubyThread rubyThread = new RubyThread(runtime, threadClass);
    // TODO: need to isolate the "current" thread from class creation
    rubyThread.threadImpl = new NativeThread(rubyThread, Thread.currentThread());
    runtime.getThreadService().setMainThread(Thread.currentThread(), rubyThread);

    // set to default thread group
    runtime.getDefaultThreadGroup().addDirectly(rubyThread);

    threadClass.setMarshal(ObjectMarshal.NOT_MARSHALABLE_MARSHAL);

    return threadClass;
  }
  private IRubyObject startWith(ThreadedRunnable runnable) throws RaiseException, OutOfMemoryError {
    Ruby runtime = getRuntime();
    ThreadContext context = runtime.getCurrentContext();

    try {
      if (RubyInstanceConfig.POOLING_ENABLED) {
        FutureThread futureThread = new FutureThread(this, runnable);
        threadImpl = futureThread;

        addToCorrectThreadGroup(context);

        threadImpl.start();

        // JRUBY-2380, associate future early so it shows up in Thread.list right away, in case it
        // doesn't run immediately
        runtime.getThreadService().associateThread(futureThread.getFuture(), this);
      } else {
        Thread thread = new Thread(runnable);
        thread.setDaemon(true);
        thread.setName(
            "Ruby" + thread.getName() + ": " + context.getFile() + ":" + (context.getLine() + 1));
        threadImpl = new NativeThread(this, thread);

        addToCorrectThreadGroup(context);

        // JRUBY-2380, associate thread early so it shows up in Thread.list right away, in case it
        // doesn't run immediately
        runtime.getThreadService().associateThread(thread, this);

        threadImpl.start();
      }

      // We yield here to hopefully permit the target thread to schedule
      // MRI immediately schedules it, so this is close but not exact
      Thread.yield();

      return this;
    } catch (OutOfMemoryError oome) {
      if (oome.getMessage().equals("unable to create new native thread")) {
        throw runtime.newThreadError(oome.getMessage());
      }
      throw oome;
    } catch (SecurityException ex) {
      throw runtime.newThreadError(ex.getMessage());
    }
  }
Exemple #6
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  @JRubyMethod(name = "pass", meta = true)
  public static IRubyObject pass(IRubyObject recv) {
    Ruby runtime = recv.getRuntime();
    ThreadService ts = runtime.getThreadService();
    boolean critical = ts.getCritical();

    ts.setCritical(false);

    Thread.yield();

    ts.setCritical(critical);

    return recv.getRuntime().getNil();
  }
Exemple #7
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  /**
   * For handling all non-Ruby exceptions bubbling out of threads
   *
   * @param exception
   */
  @SuppressWarnings("deprecation")
  public void exceptionRaised(Throwable exception) {
    if (exception instanceof RaiseException) {
      exceptionRaised((RaiseException) exception);
      return;
    }

    assert isCurrent();

    Ruby runtime = getRuntime();
    if (abortOnException(runtime) && exception instanceof Error) {
      // re-propagate on main thread
      runtime.getThreadService().getMainThread().getNativeThread().stop(exception);
    } else {
      // just rethrow on this thread, let system handlers report it
      UnsafeFactory.getUnsafe().throwException(exception);
    }
  }
Exemple #8
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  @JRubyMethod(optional = 3)
  public IRubyObject raise(IRubyObject[] args, Block block) {
    Ruby runtime = getRuntime();
    ThreadContext context = runtime.getCurrentContext();
    if (this == context.getThread()) {
      return RubyKernel.raise(context, runtime.getKernel(), args, block);
    }

    debug(this, "before raising");
    RubyThread currentThread = getRuntime().getCurrentContext().getThread();

    debug(this, "raising");
    IRubyObject exception = prepareRaiseException(runtime, args, block);

    runtime
        .getThreadService()
        .deliverEvent(
            new ThreadService.Event(
                currentThread, this, ThreadService.Event.Type.RAISE, exception));

    return this;
  }
Exemple #9
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  @JRubyMethod(name = "join", optional = 1)
  public IRubyObject join(IRubyObject[] args) {
    Ruby runtime = getRuntime();
    long timeoutMillis = Long.MAX_VALUE;

    if (args.length > 0 && !args[0].isNil()) {
      if (args.length > 1) {
        throw getRuntime().newArgumentError(args.length, 1);
      }
      // MRI behavior: value given in seconds; converted to Float; less
      // than or equal to zero returns immediately; returns nil
      timeoutMillis = (long) (1000.0D * args[0].convertToFloat().getValue());
      if (timeoutMillis <= 0) {
        // TODO: not sure that we should skip calling join() altogether.
        // Thread.join() has some implications for Java Memory Model, etc.
        if (threadImpl.isAlive()) {
          return getRuntime().getNil();
        } else {
          return this;
        }
      }
    }

    if (isCurrent()) {
      throw getRuntime().newThreadError("thread " + identityString() + " tried to join itself");
    }

    try {
      if (runtime.getThreadService().getCritical()) {
        // If the target thread is sleeping or stopped, wake it
        synchronized (this) {
          notify();
        }

        // interrupt the target thread in case it's blocking or waiting
        // WARNING: We no longer interrupt the target thread, since this usually means
        // interrupting IO and with NIO that means the channel is no longer usable.
        // We either need a new way to handle waking a target thread that's waiting
        // on IO, or we need to accept that we can't wake such threads and must wait
        // for them to complete their operation.
        // threadImpl.interrupt();
      }

      RubyThread currentThread = getRuntime().getCurrentContext().getThread();
      final long timeToWait = Math.min(timeoutMillis, 200);

      // We need this loop in order to be able to "unblock" the
      // join call without actually calling interrupt.
      long start = System.currentTimeMillis();
      while (true) {
        currentThread.pollThreadEvents();
        threadImpl.join(timeToWait);
        if (!threadImpl.isAlive()) {
          break;
        }
        if (System.currentTimeMillis() - start > timeoutMillis) {
          break;
        }
      }
    } catch (InterruptedException ie) {
      ie.printStackTrace();
      assert false : ie;
    } catch (ExecutionException ie) {
      ie.printStackTrace();
      assert false : ie;
    }

    if (exitingException != null) {
      // Set $! in the current thread before exiting
      getRuntime().getGlobalVariables().set("$!", (IRubyObject) exitingException.getException());
      throw exitingException;
    }

    if (threadImpl.isAlive()) {
      return getRuntime().getNil();
    } else {
      return this;
    }
  }