libcryfs/src/cpp-utils/thread/LoopThread.h

29 lines
929 B
C++

#pragma once
#ifndef MESSMER_CPPUTILS_THREAD_LOOPTHREAD_H
#define MESSMER_CPPUTILS_THREAD_LOOPTHREAD_H
#include "ThreadSystem.h"
#include <boost/optional.hpp>
namespace cpputils {
//TODO Test
//TODO Test that fork() doesn't destroy anything (e.g. no deadlock on stop() because thread is not running anymore)
// Has to be final, because otherwise there could be a race condition where LoopThreadForkHandler calls a LoopThread
// where the child class destructor already ran.
class LoopThread final {
public:
// The loopIteration callback returns true, if more iterations should be run, and false, if the thread should be terminated.
LoopThread(std::function<bool()> loopIteration);
~LoopThread();
void start();
void stop();
private:
std::function<bool()> _loopIteration;
boost::optional<ThreadSystem::Handle> _runningHandle;
};
}
#endif