blob: 979bc2ee3ecd48a64835bc410ea767ba009c5137 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
// Copyright (c) 2016-2021 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_THREADINTERRUPT_H
#define BITCOIN_THREADINTERRUPT_H
#include <sync.h>
#include <threadsafety.h>
#include <atomic>
#include <chrono>
#include <condition_variable>
/*
A helper class for interruptible sleeps. Calling operator() will interrupt
any current sleep, and after that point operator bool() will return true
until reset.
*/
class CThreadInterrupt
{
public:
using Clock = std::chrono::steady_clock;
CThreadInterrupt();
explicit operator bool() const;
void operator()() EXCLUSIVE_LOCKS_REQUIRED(!mut);
void reset();
bool sleep_for(Clock::duration rel_time) EXCLUSIVE_LOCKS_REQUIRED(!mut);
private:
std::condition_variable cond;
Mutex mut;
std::atomic<bool> flag;
};
#endif // BITCOIN_THREADINTERRUPT_H
|
