eventloop.h

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// Copyright (c) 2020 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef BITCOIN_EVENTLOOP_H
#define BITCOIN_EVENTLOOP_H
 
#include <sync.h>
#include <threadsafety.h>
 
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <functional>
 
class CScheduler;
 
struct EventLoop {
public:
    EventLoop() {}
    ~EventLoop();
 
    bool startEventLoop(CScheduler &scheduler,
                        std::function<void()> runEventLoop,
                        std::chrono::milliseconds delta)
        EXCLUSIVE_LOCKS_REQUIRED(!cs_running);
    bool stopEventLoop() EXCLUSIVE_LOCKS_REQUIRED(!cs_running);
 
private:
    std::atomic<bool> stopRequest{false};
    bool running GUARDED_BY(cs_running) = false;
 
    Mutex cs_running;
    std::condition_variable cond_running;
};
 
#endif // BITCOIN_EVENTLOOP_H