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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* timer-thread.cpp - Threaded timer test
*/
#include <chrono>
#include <iostream>
#include <libcamera/base/event_dispatcher.h>
#include <libcamera/base/thread.h>
#include <libcamera/base/timer.h>
#include "test.h"
using namespace std;
using namespace libcamera;
class TimeoutHandler : public Object
{
public:
TimeoutHandler()
: timer_(this), timeout_(false)
{
timer_.timeout.connect(this, &TimeoutHandler::timeoutHandler);
timer_.start(100);
}
void restart()
{
timeout_ = false;
timer_.start(100);
}
bool timeout() const
{
return timeout_;
}
private:
void timeoutHandler([[maybe_unused]] Timer *timer)
{
timeout_ = true;
}
Timer timer_;
bool timeout_;
};
class TimerThreadTest : public Test
{
protected:
int init()
{
thread_.start();
timeout_.moveToThread(&thread_);
return TestPass;
}
int run()
{
/*
* Test that the timer expires and emits the timeout signal in
* the thread it belongs to.
*/
this_thread::sleep_for(chrono::milliseconds(200));
if (!timeout_.timeout()) {
cout << "Timer expiration test failed" << endl;
return TestFail;
}
/*
* Test that starting the timer from another thread fails. We
* need to interrupt the event dispatcher to make sure we don't
* succeed simply because the event dispatcher hasn't noticed
* the timer restart.
*/
timeout_.restart();
thread_.eventDispatcher()->interrupt();
this_thread::sleep_for(chrono::milliseconds(200));
if (timeout_.timeout()) {
cout << "Timer restart test failed" << endl;
return TestFail;
}
return TestPass;
}
void cleanup()
{
/* Must stop thread before destroying timeout. */
thread_.exit(0);
thread_.wait();
}
private:
TimeoutHandler timeout_;
Thread thread_;
};
TEST_REGISTER(TimerThreadTest)
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