threadinterrupt.h

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// Copyright (c) 2016-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef BITCOIN_UTIL_THREADINTERRUPT_H
#define BITCOIN_UTIL_THREADINTERRUPT_H
 
#include <sync.h>
#include <threadsafety.h>
 
#include <atomic>
#include <chrono>
#include <condition_variable>
 
class CThreadInterrupt
{
public:
    using Clock = std::chrono::steady_clock;
 
    CThreadInterrupt();
 
    virtual ~CThreadInterrupt() = default;
 
    virtual bool interrupted() const;
 
    virtual explicit operator bool() const;
 
    virtual void operator()() EXCLUSIVE_LOCKS_REQUIRED(!mut);
 
    virtual void reset();
 
    virtual bool sleep_for(Clock::duration rel_time) EXCLUSIVE_LOCKS_REQUIRED(!mut);
 
private:
    std::condition_variable cond;
    Mutex mut;
    std::atomic<bool> flag;
};
 
#endif // BITCOIN_UTIL_THREADINTERRUPT_H