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Diffstat (limited to 'src/jaegertracing/thrift/lib/cpp/test/TNonblockingServerTest.cpp')
| -rw-r--r-- | src/jaegertracing/thrift/lib/cpp/test/TNonblockingServerTest.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/cpp/test/TNonblockingServerTest.cpp b/src/jaegertracing/thrift/lib/cpp/test/TNonblockingServerTest.cpp new file mode 100644 index 000000000..f9aab4cc1 --- /dev/null +++ b/src/jaegertracing/thrift/lib/cpp/test/TNonblockingServerTest.cpp @@ -0,0 +1,215 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +#define BOOST_TEST_MODULE TNonblockingServerTest +#include <boost/test/unit_test.hpp> +#include <memory> + +#include "thrift/concurrency/Monitor.h" +#include "thrift/concurrency/Thread.h" +#include "thrift/server/TNonblockingServer.h" +#include "thrift/transport/TNonblockingServerSocket.h" + +#include "gen-cpp/ParentService.h" + +#include <event.h> + +using apache::thrift::concurrency::Guard; +using apache::thrift::concurrency::Monitor; +using apache::thrift::concurrency::Mutex; +using apache::thrift::concurrency::ThreadFactory; +using apache::thrift::concurrency::Runnable; +using apache::thrift::concurrency::Thread; +using apache::thrift::concurrency::ThreadFactory; +using apache::thrift::server::TServerEventHandler; +using std::make_shared; +using std::shared_ptr; + +using namespace apache::thrift; + +struct Handler : public test::ParentServiceIf { + void addString(const std::string& s) override { strings_.push_back(s); } + void getStrings(std::vector<std::string>& _return) override { _return = strings_; } + std::vector<std::string> strings_; + + // dummy overrides not used in this test + int32_t incrementGeneration() override { return 0; } + int32_t getGeneration() override { return 0; } + void getDataWait(std::string&, const int32_t) override {} + void onewayWait() override {} + void exceptionWait(const std::string&) override {} + void unexpectedExceptionWait(const std::string&) override {} +}; + +class Fixture { +private: + struct ListenEventHandler : public TServerEventHandler { + public: + ListenEventHandler(Mutex* mutex) : listenMonitor_(mutex), ready_(false) {} + + void preServe() override /* override */ { + Guard g(listenMonitor_.mutex()); + ready_ = true; + listenMonitor_.notify(); + } + + Monitor listenMonitor_; + bool ready_; + }; + + struct Runner : public Runnable { + int port; + shared_ptr<event_base> userEventBase; + shared_ptr<TProcessor> processor; + shared_ptr<server::TNonblockingServer> server; + shared_ptr<ListenEventHandler> listenHandler; + shared_ptr<transport::TNonblockingServerSocket> socket; + Mutex mutex_; + + Runner() { + port = 0; + listenHandler.reset(new ListenEventHandler(&mutex_)); + } + + void run() override { + // When binding to explicit port, allow retrying to workaround bind failures on ports in use + int retryCount = port ? 10 : 0; + startServer(retryCount); + } + + void readyBarrier() { + // block until server is listening and ready to accept connections + Guard g(mutex_); + while (!listenHandler->ready_) { + listenHandler->listenMonitor_.wait(); + } + } + private: + void startServer(int retry_count) { + try { + socket.reset(new transport::TNonblockingServerSocket(port)); + server.reset(new server::TNonblockingServer(processor, socket)); + server->setServerEventHandler(listenHandler); + if (userEventBase) { + server->registerEvents(userEventBase.get()); + } + server->serve(); + } catch (const transport::TTransportException&) { + if (retry_count > 0) { + ++port; + startServer(retry_count - 1); + } else { + throw; + } + } + } + }; + + struct EventDeleter { + void operator()(event_base* p) { event_base_free(p); } + }; + +protected: + Fixture() : processor(new test::ParentServiceProcessor(make_shared<Handler>())) {} + + ~Fixture() { + if (server) { + server->stop(); + } + if (thread) { + thread->join(); + } + } + + void setEventBase(event_base* user_event_base) { + userEventBase_.reset(user_event_base, EventDeleter()); + } + + int startServer(int port) { + shared_ptr<Runner> runner(new Runner); + runner->port = port; + runner->processor = processor; + runner->userEventBase = userEventBase_; + + shared_ptr<ThreadFactory> threadFactory( + new ThreadFactory(false)); + thread = threadFactory->newThread(runner); + thread->start(); + runner->readyBarrier(); + + server = runner->server; + return runner->port; + } + + bool canCommunicate(int serverPort) { + shared_ptr<transport::TSocket> socket(new transport::TSocket("localhost", serverPort)); + socket->open(); + test::ParentServiceClient client(make_shared<protocol::TBinaryProtocol>( + make_shared<transport::TFramedTransport>(socket))); + client.addString("foo"); + std::vector<std::string> strings; + client.getStrings(strings); + return strings.size() == 1 && !(strings[0].compare("foo")); + } + +private: + shared_ptr<event_base> userEventBase_; + shared_ptr<test::ParentServiceProcessor> processor; +protected: + shared_ptr<server::TNonblockingServer> server; +private: + shared_ptr<apache::thrift::concurrency::Thread> thread; + +}; + +BOOST_AUTO_TEST_SUITE(TNonblockingServerTest) + +BOOST_FIXTURE_TEST_CASE(get_specified_port, Fixture) { + int specified_port = startServer(12345); + BOOST_REQUIRE_GE(specified_port, 12345); + BOOST_REQUIRE_EQUAL(server->getListenPort(), specified_port); + BOOST_CHECK(canCommunicate(specified_port)); + + server->stop(); +} + +BOOST_FIXTURE_TEST_CASE(get_assigned_port, Fixture) { + int specified_port = startServer(0); + BOOST_REQUIRE_EQUAL(specified_port, 0); + int assigned_port = server->getListenPort(); + BOOST_REQUIRE_NE(assigned_port, 0); + BOOST_CHECK(canCommunicate(assigned_port)); + + server->stop(); +} + +BOOST_FIXTURE_TEST_CASE(provide_event_base, Fixture) { + event_base* eb = event_base_new(); + setEventBase(eb); + startServer(0); + + // assert that the server works + BOOST_CHECK(canCommunicate(server->getListenPort())); +#if LIBEVENT_VERSION_NUMBER > 0x02010400 + // also assert that the event_base is actually used when it's easy + BOOST_CHECK_GT(event_base_get_num_events(eb, EVENT_BASE_COUNT_ADDED), 0); +#endif +} + +BOOST_AUTO_TEST_SUITE_END() |