Bitcoin Core  0.19.99
P2P Digital Currency
threadinterrupt.h
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1 // Copyright (c) 2016-2019 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 
5 #ifndef BITCOIN_THREADINTERRUPT_H
6 #define BITCOIN_THREADINTERRUPT_H
7 
8 #include <sync.h>
9 
10 #include <atomic>
11 #include <chrono>
12 #include <condition_variable>
13 
14 /*
15  A helper class for interruptible sleeps. Calling operator() will interrupt
16  any current sleep, and after that point operator bool() will return true
17  until reset.
18 */
20 {
21 public:
23  explicit operator bool() const;
24  void operator()();
25  void reset();
26  bool sleep_for(std::chrono::milliseconds rel_time);
27  bool sleep_for(std::chrono::seconds rel_time);
28  bool sleep_for(std::chrono::minutes rel_time);
29 
30 private:
31  std::condition_variable cond;
33  std::atomic<bool> flag;
34 };
35 
36 #endif //BITCOIN_THREADINTERRUPT_H
bool sleep_for(std::chrono::milliseconds rel_time)
std::condition_variable cond
std::atomic< bool > flag