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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kDefault
#include "mongo/platform/basic.h"
#include "mongo/util/concurrency/thread_pool_test_common.h"
#include "mongo/stdx/condition_variable.h"
#include "mongo/stdx/memory.h"
#include "mongo/stdx/mutex.h"
#include "mongo/unittest/death_test.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/concurrency/thread_pool_interface.h"
#include "mongo/util/concurrency/thread_pool_test_fixture.h"
#include "mongo/util/log.h"
namespace mongo {
namespace {
using ThreadPoolFactory = stdx::function<std::unique_ptr<ThreadPoolInterface>()>;
class CommonThreadPoolTestFixture : public ThreadPoolTest {
public:
CommonThreadPoolTestFixture(ThreadPoolFactory makeThreadPool)
: _makeThreadPool(std::move(makeThreadPool)) {}
private:
std::unique_ptr<ThreadPoolInterface> makeThreadPool() override {
return _makeThreadPool();
}
ThreadPoolFactory _makeThreadPool;
};
using ThreadPoolTestCaseFactory =
stdx::function<std::unique_ptr<::mongo::unittest::Test>(ThreadPoolFactory)>;
using ThreadPoolTestCaseMap = stdx::unordered_map<std::string, ThreadPoolTestCaseFactory>;
static ThreadPoolTestCaseMap& threadPoolTestCaseRegistry() {
static ThreadPoolTestCaseMap registry;
return registry;
}
class TptRegistrationAgent {
TptRegistrationAgent(const TptRegistrationAgent&) = delete;
TptRegistrationAgent& operator=(const TptRegistrationAgent&) = delete;
public:
TptRegistrationAgent(const std::string& name, ThreadPoolTestCaseFactory makeTest) {
auto& entry = threadPoolTestCaseRegistry()[name];
if (entry) {
severe() << "Multiple attempts to register ThreadPoolTest named " << name;
fassertFailed(34355);
}
entry = std::move(makeTest);
}
};
template <typename T>
class TptDeathRegistrationAgent {
TptDeathRegistrationAgent(const TptDeathRegistrationAgent&) = delete;
TptDeathRegistrationAgent& operator=(const TptDeathRegistrationAgent&) = delete;
public:
TptDeathRegistrationAgent(const std::string& name, ThreadPoolTestCaseFactory makeTest) {
auto& entry = threadPoolTestCaseRegistry()[name];
if (entry) {
severe() << "Multiple attempts to register ThreadPoolDeathTest named " << name;
fassertFailed(34356);
}
entry = [makeTest](ThreadPoolFactory makeThreadPool) {
return stdx::make_unique<::mongo::unittest::DeathTest<T>>(std::move(makeThreadPool));
};
}
};
#define COMMON_THREAD_POOL_TEST(TEST_NAME) \
class TPT_##TEST_NAME : public CommonThreadPoolTestFixture { \
public: \
TPT_##TEST_NAME(ThreadPoolFactory makeThreadPool) \
: CommonThreadPoolTestFixture(std::move(makeThreadPool)) {} \
\
private: \
void _doTest() override; \
static const TptRegistrationAgent _agent; \
}; \
const TptRegistrationAgent TPT_##TEST_NAME::_agent( \
#TEST_NAME, [](ThreadPoolFactory makeThreadPool) { \
return stdx::make_unique<TPT_##TEST_NAME>(std::move(makeThreadPool)); \
}); \
void TPT_##TEST_NAME::_doTest()
#define COMMON_THREAD_POOL_DEATH_TEST(TEST_NAME, MATCH_EXPR) \
class TPT_##TEST_NAME : public CommonThreadPoolTestFixture { \
public: \
TPT_##TEST_NAME(ThreadPoolFactory makeThreadPool) \
: CommonThreadPoolTestFixture(std::move(makeThreadPool)) {} \
\
private: \
void _doTest() override; \
static const TptDeathRegistrationAgent<TPT_##TEST_NAME> _agent; \
}; \
const TptDeathRegistrationAgent<TPT_##TEST_NAME> TPT_##TEST_NAME::_agent( \
#TEST_NAME, [](ThreadPoolFactory makeThreadPool) { \
return stdx::make_unique<TPT_##TEST_NAME>(std::move(makeThreadPool)); \
}); \
std::string getDeathTestPattern(TPT_##TEST_NAME*) { \
return MATCH_EXPR; \
} \
void TPT_##TEST_NAME::_doTest()
COMMON_THREAD_POOL_TEST(UnusedPool) {
getThreadPool();
}
COMMON_THREAD_POOL_TEST(CannotScheduleAfterShutdown) {
auto& pool = getThreadPool();
pool.shutdown();
ASSERT_EQ(ErrorCodes::ShutdownInProgress, pool.schedule([] {}));
}
COMMON_THREAD_POOL_DEATH_TEST(DieOnDoubleStartUp, "it has already started") {
auto& pool = getThreadPool();
pool.startup();
pool.startup();
}
namespace {
constexpr auto kExceptionMessage = "No good very bad exception";
}
COMMON_THREAD_POOL_DEATH_TEST(DieWhenExceptionBubblesUp, kExceptionMessage) {
auto& pool = getThreadPool();
pool.startup();
ASSERT_OK(pool.schedule([] {
uassertStatusOK(Status({ErrorCodes::BadValue, kExceptionMessage}));
}));
pool.shutdown();
pool.join();
}
COMMON_THREAD_POOL_DEATH_TEST(DieOnDoubleJoin, "Attempted to join pool") {
auto& pool = getThreadPool();
pool.shutdown();
pool.join();
pool.join();
}
COMMON_THREAD_POOL_TEST(PoolDestructorExecutesRemainingTasks) {
auto& pool = getThreadPool();
bool executed = false;
ASSERT_OK(pool.schedule([&executed] { executed = true; }));
deleteThreadPool();
ASSERT_EQ(executed, true);
}
COMMON_THREAD_POOL_TEST(PoolJoinExecutesRemainingTasks) {
auto& pool = getThreadPool();
bool executed = false;
ASSERT_OK(pool.schedule([&executed] { executed = true; }));
pool.shutdown();
pool.join();
ASSERT_EQ(executed, true);
}
COMMON_THREAD_POOL_TEST(RepeatedScheduleDoesntSmashStack) {
const std::size_t depth = 10000ul;
auto& pool = getThreadPool();
stdx::function<void()> func;
std::size_t n = 0;
stdx::mutex mutex;
stdx::condition_variable condvar;
func = [&pool, &n, &func, &condvar, &mutex, depth] {
stdx::unique_lock<stdx::mutex> lk(mutex);
if (n < depth) {
n++;
lk.unlock();
ASSERT_OK(pool.schedule(func));
} else {
pool.shutdown();
condvar.notify_one();
}
};
func();
pool.startup();
pool.join();
stdx::unique_lock<stdx::mutex> lk(mutex);
condvar.wait(lk, [&n, depth] { return n == depth; });
}
} // namespace
void addTestsForThreadPool(const std::string& suiteName, ThreadPoolFactory makeThreadPool) {
auto suite = unittest::Suite::getSuite(suiteName);
for (auto testCase : threadPoolTestCaseRegistry()) {
suite->add(str::stream() << suiteName << "::" << testCase.first,
[testCase, makeThreadPool] { testCase.second(makeThreadPool)->run(); });
}
}
} // namespace mongo
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