Merge "libbinder_ndk_unit_test: show cookie can own data" am: 4a0ed553 am:...

struct DeathRecipientCookie {

    std::function<void(void)>*onDeath, *onUnlink;

    // may contain additional data

    // - if it contains AIBinder, then you must call AIBinder_unlinkToDeath manually,

    //   because it would form a strong reference cycle

    // - if it points to a data member of another structure, this should have a weak

    //   promotable reference or a strong reference, in case that object is deleted

    //   while the death recipient is firing

};

void LambdaOnDeath(void* cookie) {

    auto funcs = static_cast<DeathRecipientCookie*>(cookie);

    // may reference other cookie members

    (*funcs->onDeath)();

};

void LambdaOnUnlink(void* cookie) {

    auto funcs = static_cast<DeathRecipientCookie*>(cookie);

    (*funcs->onUnlink)();

    // may reference other cookie members

    delete funcs;

};

TEST(NdkBinder, DeathRecipient) {

    using namespace std::chrono_literals;

        unlinkCv.notify_one();

    };

    DeathRecipientCookie cookie = {&onDeath, &onUnlink};

    DeathRecipientCookie* cookie = new DeathRecipientCookie{&onDeath, &onUnlink};

    AIBinder_DeathRecipient* recipient = AIBinder_DeathRecipient_new(LambdaOnDeath);

    AIBinder_DeathRecipient_setOnUnlinked(recipient, LambdaOnUnlink);

    EXPECT_EQ(STATUS_OK, AIBinder_linkToDeath(binder, recipient, static_cast<void*>(&cookie)));

    EXPECT_EQ(STATUS_OK, AIBinder_linkToDeath(binder, recipient, static_cast<void*>(cookie)));

    // the binder driver should return this if the service dies during the transaction

    EXPECT_EQ(STATUS_DEAD_OBJECT, foo->die());