C++ TEventBase::loopForever方法代码示例

TEST(ThriftServer, CallbackOrderingTest) {
  apache::thrift::TestThriftServerFactory<TestInterface> factory;
  auto server = factory.create();
  auto serverHandler = std::make_shared<TestServerEventHandler>();


  TProcessorBase::addProcessorEventHandlerFactory(serverHandler);
  server->setServerEventHandler(serverHandler);

  ScopedServerThread sst(server);
  TEventBase base;
  std::shared_ptr<TAsyncSocket> socket(
    TAsyncSocket::newSocket(&base, *sst.getAddress()));

  TestServiceAsyncClient client(
    std::unique_ptr<HeaderClientChannel,
                    apache::thrift::async::TDelayedDestruction::Destructor>(
                      new HeaderClientChannel(socket)));

  client.noResponse([](ClientReceiveState&& state){}, 10000);
  base.tryRunAfterDelay([&](){
    socket->closeNow();
  }, 1);
  base.tryRunAfterDelay([&](){
    base.terminateLoopSoon();
  }, 20);
  base.loopForever();
  serverHandler->check();
  TProcessorBase::removeProcessorEventHandlerFactory(serverHandler);
}

// Test if multiple requests are pending in a queue, for security to establish,
// then we flow RequestContext correctly with each request.
void runRequestContextTest(bool failSecurity) {
  ScopedServerThread sst(getServer());
  TEventBase base;
  auto channel = getClientChannel(&base, *sst.getAddress(), failSecurity);
  TestServiceAsyncClient client(std::move(channel));
  Countdown c(2, [&base](){base.terminateLoopSoon();});

  // Send first request with a unique RequestContext. This would trigger
  // security. Rest of the request would queue behind it.
  folly::RequestContext::create();
  folly::RequestContext::get()->setContextData("first", nullptr);
  client.sendResponse([&base,&client,&c](ClientReceiveState&& state) {
    EXPECT_TRUE(folly::RequestContext::get()->hasContextData("first"));
    c.down();
  }, 10);

  // Send another request with a unique RequestContext. This request would
  // queue behind the first one inside HeaderClientChannel.
  folly::RequestContext::create();
  folly::RequestContext::get()->setContextData("second", nullptr);
  client.sendResponse([&base,&client,&c](ClientReceiveState&& state) {
    EXPECT_FALSE(folly::RequestContext::get()->hasContextData("first"));
    EXPECT_TRUE(folly::RequestContext::get()->hasContextData("second"));
    c.down();
  }, 10);

  // Now start looping the eventbase to guarantee that all the above requests
  // would always queue.
  base.loopForever();
}

TEST(Duplex, DuplexTest) {
  enum {START=1, COUNT=10, INTERVAL=5};
  ScopedServerThread sst(getServer());
  TEventBase base;

  std::shared_ptr<TAsyncSocket> socket(
    TAsyncSocket::newSocket(&base, *sst.getAddress()));

  auto duplexChannel =
     std::make_shared<DuplexChannel>(DuplexChannel::Who::CLIENT, socket);
  DuplexServiceAsyncClient client(duplexChannel->getClientChannel());

  bool success = false;
  ThriftServer clients_server(duplexChannel->getServerChannel());
  clients_server.setInterface(std::make_shared<DuplexClientInterface>(
      START, COUNT, success));
  clients_server.serve();

  client.registerForUpdates([](ClientReceiveState&& state) {
    EXPECT_FALSE(state.isException());
    bool res = DuplexServiceAsyncClient::recv_registerForUpdates(state);
    EXPECT_TRUE(res);
  }, START, COUNT, INTERVAL);

  // fail on time out
  base.tryRunAfterDelay([] {EXPECT_TRUE(false);}, 5000);

  base.loopForever();

  EXPECT_TRUE(success);
}

TEST(RequestContext, SimpleTest) {
  TEventBase base;

  EXPECT_FALSE(RequestContext::create());
  EXPECT_TRUE(RequestContext::create());
  EXPECT_TRUE(RequestContext::get() != nullptr);

  EXPECT_EQ(nullptr, RequestContext::get()->getContextData("test"));

  RequestContext::get()->setContextData(
    "test",
    std::unique_ptr<TestData>(new TestData(10)));
  base.runInEventBaseThread([&](){
      EXPECT_TRUE(RequestContext::get() != nullptr);
      auto data = dynamic_cast<TestData*>(
        RequestContext::get()->getContextData("test"))->data_;
      EXPECT_EQ(10, data);
      base.terminateLoopSoon();
    });
  auto th = std::thread([&](){
      base.loopForever();
  });
  th.join();
  EXPECT_TRUE(RequestContext::get() != nullptr);
  auto a = dynamic_cast<TestData*>(
    RequestContext::get()->getContextData("test"));
  auto data = a->data_;
  EXPECT_EQ(10, data);

  RequestContext::setContext(std::shared_ptr<RequestContext>());
  // There should always be a default context
  EXPECT_TRUE(nullptr != RequestContext::get());
}

TEST(ThriftServer, IdleTimeoutAfterTest) {
  ScopedServerThread sst(getServer());

  TEventBase base;

  std::shared_ptr<TAsyncSocket> socket(
    TAsyncSocket::newSocket(&base, *sst.getAddress()));

  auto client_channel = HeaderClientChannel::newChannel(socket);
  auto client_channelp = client_channel.get();
  CloseChecker checker;

  client_channel->setCloseCallback(&checker);
  TestServiceAsyncClient client(std::move(client_channel));
  std::string ret;
  client.sync_sendResponse(ret, 20);

  EXPECT_FALSE(checker.getClosed());

  base.tryRunAfterDelay([&base](){
      base.terminateLoopSoon();
    }, 200);
  base.loopForever();
  EXPECT_TRUE(checker.getClosed());
  client_channelp->setCloseCallback(nullptr);
}

int main(int argc, char **argv) {


    TEventBase base;

    int port = 8082;

    std::shared_ptr<TAsyncSocket> socket(
            TAsyncSocket::newSocket(&base, "127.0.0.1", port));

    auto client_channel = HeaderClientChannel::newChannel(socket);
    CalculatorAsyncClient client(std::move(client_channel));

    folly::wangle::Future<int64_t> f = client.future_add(2, 3);

    

    f.then(
        [](Try<int64_t>&& t) {
            std::cout << "Result = " << t.value() << std::endl;
        }
    );

    // Run a single iteration of the event loop, in reality, this would be a 
    // nearly infinite loop, where we stop the looping when the client should terminate
    base.loopForever();

}

void runTest(std::function<void(HeaderClientChannel* channel)> setup) {
  ScopedServerThread sst(getServer());
  TEventBase base;
  auto channel = getClientChannel(&base, *sst.getAddress());
  setup(channel.get());
  TestServiceAsyncClient client(std::move(channel));
  Countdown c(3, [&base](){base.terminateLoopSoon();});

  client.sendResponse([&base,&client,&c](ClientReceiveState&& state) {
    EXPECT_FALSE(state.isException());
    EXPECT_TRUE(state.isSecurityActive());
    std::string res;
    try {
      TestServiceAsyncClient::recv_sendResponse(res, state);
    } catch(const std::exception&) {
      EXPECT_TRUE(false);
    }
    EXPECT_EQ(res, "10");
    c.down();
  }, 10);


  // fail on time out
  base.tryRunAfterDelay([] {EXPECT_TRUE(false);}, 5000);

  base.tryRunAfterDelay([&client,&base,&c] {
    client.sendResponse([&base,&c](ClientReceiveState&& state) {
      EXPECT_FALSE(state.isException());
      EXPECT_TRUE(state.isSecurityActive());
      std::string res;
      try {
        TestServiceAsyncClient::recv_sendResponse(res, state);
      } catch(const std::exception&) {
        EXPECT_TRUE(false);
      }
      EXPECT_EQ(res, "10");
      c.down();
    }, 10);
    client.sendResponse([&base,&c](ClientReceiveState&& state) {
      EXPECT_FALSE(state.isException());
      EXPECT_TRUE(state.isSecurityActive());
      std::string res;
      try {
        TestServiceAsyncClient::recv_sendResponse(res, state);
      } catch(const std::exception&) {
        EXPECT_TRUE(false);
      }
      EXPECT_EQ(res, "10");
      c.down();
    }, 10);
  }, 1);

  base.loopForever();
}

TEST(ThriftServer, IdleTimeoutTest) {

  TEventBase base;

  auto port = Server::get(getServer)->getAddress().getPort();
  std::shared_ptr<TAsyncSocket> socket(
    TAsyncSocket::newSocket(&base, "127.0.0.1", port));

  auto client_channel = HeaderClientChannel::newChannel(socket);
  CloseChecker checker;
  client_channel->setCloseCallback(&checker);
  base.runAfterDelay([&base](){
      base.terminateLoopSoon();
    }, 100);
  base.loopForever();
  EXPECT_TRUE(checker.getClosed());
}

void duplexTest(const apache::thrift::SecurityMech mech) {
  enum {START=1, COUNT=3, INTERVAL=1};
  ScopedServerThread duplexsst(getDuplexServer());
  TEventBase base;
  std::shared_ptr<TAsyncSocket> socket(
    TAsyncSocket::newSocket(&base, *duplexsst.getAddress()));

  auto duplexChannel =
      std::make_shared<DuplexChannel>(DuplexChannel::Who::CLIENT, socket);
  enableSecurity(duplexChannel->getClientChannel().get(), mech);
  DuplexServiceAsyncClient client(duplexChannel->getClientChannel());

  bool success = false;
  ThriftServer clients_server(duplexChannel->getServerChannel());
  clients_server.setInterface(std::make_shared<DuplexClientInterface>(
      START, COUNT, success));
  clients_server.serve();

  client.registerForUpdates([](ClientReceiveState&& state) {
    EXPECT_FALSE(state.isException());
    EXPECT_TRUE(state.isSecurityActive());
    try {
      bool res = DuplexServiceAsyncClient::recv_registerForUpdates(state);
      EXPECT_TRUE(res);
    } catch (const std::exception&) {
      EXPECT_TRUE(false);
    }
  }, START, COUNT, INTERVAL);

  // fail on time out
  base.tryRunAfterDelay([] {EXPECT_TRUE(false);}, 5000);

  base.loopForever();

  EXPECT_TRUE(success);
}