Add test for death notification workqueue. am: f7100e49

            pthread_mutex_unlock(&m_waitMutex);

            return ret;

        }

        pthread_t getTriggeringThread()

        {

            return m_triggeringThread;

        }

    protected:

        void triggerEvent(void) {

            pthread_mutex_lock(&m_waitMutex);

            pthread_cond_signal(&m_waitCond);

            m_eventTriggered = true;

            m_triggeringThread = pthread_self();

            pthread_mutex_unlock(&m_waitMutex);

        };

    private:

        pthread_mutex_t m_waitMutex;

        pthread_cond_t m_waitCond;

        bool m_eventTriggered;

        pthread_t m_triggeringThread;

};

class BinderLibTestCallBack : public BBinder, public BinderLibTestEvent

    }

}

TEST_F(BinderLibTest, DeathNotificationThread)

{

    status_t ret;

    sp<BinderLibTestCallBack> callback;

    sp<IBinder> target = addServer();

    ASSERT_TRUE(target != NULL);

    sp<IBinder> client = addServer();

    ASSERT_TRUE(client != NULL);

    sp<TestDeathRecipient> testDeathRecipient = new TestDeathRecipient();

    ret = target->linkToDeath(testDeathRecipient);

    EXPECT_EQ(NO_ERROR, ret);

    {

        Parcel data, reply;

        ret = target->transact(BINDER_LIB_TEST_EXIT_TRANSACTION, data, &reply, TF_ONE_WAY);

        EXPECT_EQ(0, ret);

    }

    /* Make sure it's dead */

    testDeathRecipient->waitEvent(5);

    /* Now, pass the ref to another process and ask that process to

     * call linkToDeath() on it, and wait for a response. This tests

     * two things:

     * 1) You still get death notifications when calling linkToDeath()

     *    on a ref that is already dead when it was passed to you.

     * 2) That death notifications are not directly pushed to the thread

     *    registering them, but to the threadpool (proc workqueue) instead.

     *

     * 2) is tested because the thread handling BINDER_LIB_TEST_DEATH_TRANSACTION

     * is blocked on a condition variable waiting for the death notification to be

     * called; therefore, that thread is not available for handling proc work.

     * So, if the death notification was pushed to the thread workqueue, the callback

     * would never be called, and the test would timeout and fail.

     *

     * Note that we can't do this part of the test from this thread itself, because

     * the binder driver would only push death notifications to the thread if

     * it is a looper thread, which this thread is not.

     *

     * See b/23525545 for details.

     */

    {

        Parcel data, reply;

        callback = new BinderLibTestCallBack();

        data.writeStrongBinder(target);

        data.writeStrongBinder(callback);

        ret = client->transact(BINDER_LIB_TEST_LINK_DEATH_TRANSACTION, data, &reply, TF_ONE_WAY);

        EXPECT_EQ(NO_ERROR, ret);

    }

    ret = callback->waitEvent(5);

    EXPECT_EQ(NO_ERROR, ret);

    ret = callback->getResult();

    EXPECT_EQ(NO_ERROR, ret);

}

TEST_F(BinderLibTest, PassFile) {

    int ret;

    int pipefd[2];