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chore: import upstream snapshot with attribution

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wehub-resource-sync
2026-07-13 13:29:29 +08:00
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test/bthread_timer_thread_unittest.cpp
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// 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.
#include <gtest/gtest.h>
#include <gflags/gflags.h>
#include "bthread/sys_futex.h"
#include "bthread/timer_thread.h"
#include "bthread/bthread.h"
#include "butil/logging.h"
namespace {
long timespec_diff_us(const timespec& ts1, const timespec& ts2) {
return (ts1.tv_sec - ts2.tv_sec) * 1000000L +
(ts1.tv_nsec - ts2.tv_nsec) / 1000;
}
// A simple class, could keep track of the time when it is invoked.
class TimeKeeper {
public:
TimeKeeper(timespec run_time)
: _expect_run_time(run_time), _name(NULL), _sleep_ms(0) {}
TimeKeeper(timespec run_time, const char* name/*must be string constant*/)
: _expect_run_time(run_time), _name(name), _sleep_ms(0) {}
TimeKeeper(timespec run_time, const char* name/*must be string constant*/,
int sleep_ms)
: _expect_run_time(run_time), _name(name), _sleep_ms(sleep_ms) {}
void schedule(bthread::TimerThread* timer_thread) {
_task_id = timer_thread->schedule(
TimeKeeper::routine, this, _expect_run_time);
}
void run()
{
timespec current_time;
clock_gettime(CLOCK_REALTIME, &current_time);
if (_name) {
LOG(INFO) << "Run `" << _name << "' task_id=" << _task_id;
} else {
LOG(INFO) << "Run task_id=" << _task_id;
}
_run_times.push_back(current_time);
const int saved_sleep_ms = _sleep_ms;
if (saved_sleep_ms > 0) {
timespec timeout = butil::milliseconds_to_timespec(saved_sleep_ms);
bthread::futex_wait_private(&_sleep_ms, saved_sleep_ms, &timeout);
}
}
void wakeup() {
if (_sleep_ms != 0) {
_sleep_ms = 0;
bthread::futex_wake_private(&_sleep_ms, 1);
} else {
LOG(ERROR) << "No need to wakeup "
<< (_name ? _name : "") << " task_id=" << _task_id;
}
}
// verify the first run is in specified time range.
void expect_first_run()
{
expect_first_run(_expect_run_time);
}
void expect_first_run(timespec expect_run_time)
{
ASSERT_TRUE(!_run_times.empty());
long diff = timespec_diff_us(_run_times[0], expect_run_time);
EXPECT_LE(labs(diff), 50000);
}
void expect_not_run() {
EXPECT_TRUE(_run_times.empty());
}
static void routine(void *arg)
{
TimeKeeper* keeper = (TimeKeeper*)arg;
keeper->run();
}
timespec _expect_run_time;
bthread::TimerThread::TaskId _task_id;
private:
const char* _name;
int _sleep_ms;
std::vector<timespec> _run_times;
};
TEST(TimerThreadTest, RunTasks) {
bthread::TimerThread timer_thread;
ASSERT_EQ(0, timer_thread.start(NULL));
timespec _2s_later = butil::seconds_from_now(2);
TimeKeeper keeper1(_2s_later, "keeper1");
keeper1.schedule(&timer_thread);
TimeKeeper keeper2(_2s_later, "keeper2"); // same time with keeper1
keeper2.schedule(&timer_thread);
timespec _1s_later = butil::seconds_from_now(1);
TimeKeeper keeper3(_1s_later, "keeper3");
keeper3.schedule(&timer_thread);
timespec _10s_later = butil::seconds_from_now(10);
TimeKeeper keeper4(_10s_later, "keeper4");
keeper4.schedule(&timer_thread);
TimeKeeper keeper5(_10s_later, "keeper5");
keeper5.schedule(&timer_thread);
// sleep 1 second, and unschedule task2
LOG(INFO) << "Sleep 1s";
sleep(1);
timer_thread.unschedule(keeper2._task_id);
timer_thread.unschedule(keeper4._task_id);
timespec old_time = { 0, 0 };
TimeKeeper keeper6(old_time, "keeper6");
keeper6.schedule(&timer_thread);
const timespec keeper6_addtime = butil::seconds_from_now(0);
// sleep 10 seconds and stop.
LOG(INFO) << "Sleep 2s";
sleep(2);
LOG(INFO) << "Stop timer_thread";
butil::Timer tm;
tm.start();
timer_thread.stop_and_join();
tm.stop();
ASSERT_LE(tm.m_elapsed(), 15);
// verify all runs in expected time range.
keeper1.expect_first_run();
keeper2.expect_not_run();
keeper3.expect_first_run();
keeper4.expect_not_run();
keeper5.expect_not_run();
keeper6.expect_first_run(keeper6_addtime);
}
// If the scheduled time is before start time, then should run it
// immediately.
TEST(TimerThreadTest, start_after_schedule) {
bthread::TimerThread timer_thread;
timespec past_time = { 0, 0 };
TimeKeeper keeper(past_time, "keeper1");
keeper.schedule(&timer_thread);
ASSERT_EQ(bthread::TimerThread::INVALID_TASK_ID, keeper._task_id);
ASSERT_EQ(0, timer_thread.start(NULL));
keeper.schedule(&timer_thread);
ASSERT_NE(bthread::TimerThread::INVALID_TASK_ID, keeper._task_id);
timespec current_time = butil::seconds_from_now(0);
sleep(1); // make sure timer thread start and run
timer_thread.stop_and_join();
keeper.expect_first_run(current_time);
}
class TestTask {
public:
TestTask(bthread::TimerThread* timer_thread, TimeKeeper* keeper1,
TimeKeeper* keeper2, int expected_unschedule_result)
: _timer_thread(timer_thread)
, _keeper1(keeper1)
, _keeper2(keeper2)
, _expected_unschedule_result(expected_unschedule_result) {
}
void run()
{
clock_gettime(CLOCK_REALTIME, &_running_time);
EXPECT_EQ(_expected_unschedule_result,
_timer_thread->unschedule(_keeper1->_task_id));
_keeper2->schedule(_timer_thread);
}
static void routine(void* arg)
{
TestTask* task = (TestTask*)arg;
task->run();
}
timespec _running_time;
private:
bthread::TimerThread* _timer_thread; // not owned.
TimeKeeper* _keeper1; // not owned.
TimeKeeper* _keeper2; // not owned.
int _expected_unschedule_result;
};
// Perform schedule and unschedule inside a running task
TEST(TimerThreadTest, schedule_and_unschedule_in_task) {
bthread::TimerThread timer_thread;
timespec past_time = { 0, 0 };
timespec future_time = { std::numeric_limits<int>::max(), 0 };
const timespec _500ms_after = butil::milliseconds_from_now(500);
TimeKeeper keeper1(future_time, "keeper1");
TimeKeeper keeper2(past_time, "keeper2");
TimeKeeper keeper3(past_time, "keeper3");
TimeKeeper keeper4(past_time, "keeper4");
TimeKeeper keeper5(_500ms_after, "keeper5", 10000/*10s*/);
ASSERT_EQ(0, timer_thread.start(NULL));
keeper1.schedule(&timer_thread); // start keeper1
keeper3.schedule(&timer_thread); // start keeper3
timespec keeper3_addtime = butil::seconds_from_now(0);
keeper5.schedule(&timer_thread); // start keeper5
sleep(1); // let keeper1/3/5 run
TestTask test_task1(&timer_thread, &keeper1, &keeper2, 0);
timer_thread.schedule(TestTask::routine, &test_task1, past_time);
TestTask test_task2(&timer_thread, &keeper3, &keeper4, -1);
timer_thread.schedule(TestTask::routine, &test_task2, past_time);
sleep(1);
// test_task1/2 should be both blocked by keeper5.
keeper2.expect_not_run();
keeper4.expect_not_run();
// unscheduling (running) keeper5 should have no effect and returns 1
ASSERT_EQ(1, timer_thread.unschedule(keeper5._task_id));
// wake up keeper5 to let test_task1/2 run.
keeper5.wakeup();
sleep(1);
timer_thread.stop_and_join();
timespec finish_time;
clock_gettime(CLOCK_REALTIME, &finish_time);
keeper1.expect_not_run();
keeper2.expect_first_run(test_task1._running_time);
keeper3.expect_first_run(keeper3_addtime);
keeper4.expect_first_run(test_task2._running_time);
keeper5.expect_first_run();
}
} // end namespace