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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2024, Ideas on Board Oy
*
* timer-fail.cpp - Threaded timer failure test
*/
#include <chrono>
#include <iostream>
#include <libcamera/base/event_dispatcher.h>
#include <libcamera/base/object.h>
#include <libcamera/base/thread.h>
#include <libcamera/base/timer.h>
#include "test.h"
using namespace libcamera;
using namespace std;
using namespace std::chrono_literals;
class TimeoutHandler : public Object
{
public:
TimeoutHandler()
: timer_(this), timeout_(false)
{
timer_.timeout.connect(this, &TimeoutHandler::timeoutHandler);
}
void start()
{
timer_.start(100ms);
}
bool timeout() const
{
return timeout_;
}
private:
void timeoutHandler()
{
timeout_ = true;
}
Timer timer_;
bool timeout_;
};
class TimerFailTest : public Test
{
protected:
int init()
{
thread_.start();
timeout_ = new TimeoutHandler();
timeout_->moveToThread(&thread_);
return TestPass;
}
int run()
{
/*
* Test that the forbidden operation of starting the timer from
* another thread results in a failure. 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_->start();
thread_.eventDispatcher()->interrupt();
this_thread::sleep_for(chrono::milliseconds(200));
/*
* The wrong start() call should result in an assertion in debug
* builds, and a timeout in release builds. The test is
* therefore marked in meson.build as expected to fail. We need
* to return TestPass in the unexpected (usually known as
* "fail") case, and TestFail otherwise.
*/
if (timeout_->timeout()) {
cout << "Timer start from wrong thread succeeded unexpectedly"
<< endl;
return TestPass;
}
return TestFail;
}
void cleanup()
{
/*
* Object class instances must be destroyed from the thread
* they live in.
*/
timeout_->deleteLater();
thread_.exit(0);
thread_.wait();
}
private:
TimeoutHandler *timeout_;
Thread thread_;
};
TEST_REGISTER(TimerFailTest)
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