118 lines
2.4 KiB
C++
118 lines
2.4 KiB
C++
/*
|
|
Copyright 2025 flyinghead
|
|
|
|
This file is part of Flycast.
|
|
|
|
Flycast is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Flycast 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
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Flycast. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
#include "stdclass.h"
|
|
#include "oslib/oslib.h"
|
|
#include <thread>
|
|
#include <atomic>
|
|
#include <mutex>
|
|
#include <stdexcept>
|
|
#include <functional>
|
|
#include "log/Log.h"
|
|
|
|
class VPeriodicThread
|
|
{
|
|
public:
|
|
virtual ~VPeriodicThread() {
|
|
stop();
|
|
}
|
|
|
|
void start()
|
|
{
|
|
LockGuard _(mutex);
|
|
if (thread.joinable())
|
|
return;
|
|
running = true;
|
|
event.Reset();
|
|
thread = std::thread([this]() {
|
|
ThreadName _(name);
|
|
try {
|
|
init();
|
|
while (true)
|
|
{
|
|
if (period != 0)
|
|
event.Wait(period);
|
|
else
|
|
event.Wait();
|
|
if (!running)
|
|
break;
|
|
doWork();
|
|
}
|
|
term();
|
|
} catch (const std::runtime_error& e) {
|
|
ERROR_LOG(COMMON, "PeriodicThread %s: runtime error %s", name, e.what());
|
|
} catch (...) {
|
|
ERROR_LOG(COMMON, "PeriodicThread %s: uncaught unknown exception", name);
|
|
}
|
|
});
|
|
}
|
|
|
|
void stop()
|
|
{
|
|
LockGuard _(mutex);
|
|
running = false;
|
|
event.Set();
|
|
if (thread.joinable())
|
|
thread.join();
|
|
}
|
|
|
|
void setPeriod(int period) {
|
|
this->period = period;
|
|
}
|
|
|
|
void notify() {
|
|
event.Set();
|
|
}
|
|
|
|
protected:
|
|
VPeriodicThread(const char *name, int periodMS = 0)
|
|
: name(name), period(periodMS)
|
|
{ }
|
|
virtual void doWork() = 0;
|
|
virtual void init() {}
|
|
virtual void term() {}
|
|
|
|
private:
|
|
using LockGuard = std::lock_guard<std::mutex>;
|
|
const char *name;
|
|
int period;
|
|
cResetEvent event;
|
|
std::thread thread;
|
|
std::atomic<bool> running = false;
|
|
std::mutex mutex;
|
|
};
|
|
|
|
class PeriodicThread : public VPeriodicThread
|
|
{
|
|
public:
|
|
template<class F, class... Args>
|
|
PeriodicThread(const char *name, F&& f, Args&&... args)
|
|
: VPeriodicThread(name, 0)
|
|
{
|
|
work = std::bind(std::forward<F>(f), std::forward<Args>(args)...);
|
|
}
|
|
|
|
private:
|
|
void doWork() override {
|
|
work();
|
|
}
|
|
|
|
std::function<void()> work;
|
|
};
|