LCOV - code coverage report
Current view: top level - src/util - threadinterrupt.h (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 0 1 0.0 %
Date: 2023-11-06 23:13:05 Functions: 0 1 0.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : // Copyright (c) 2016-2022 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_UTIL_THREADINTERRUPT_H
       6                 :            : #define BITCOIN_UTIL_THREADINTERRUPT_H
       7                 :            : 
       8                 :            : #include <sync.h>
       9                 :            : #include <threadsafety.h>
      10                 :            : 
      11                 :            : #include <atomic>
      12                 :            : #include <chrono>
      13                 :            : #include <condition_variable>
      14                 :            : 
      15                 :            : /**
      16                 :            :  * A helper class for interruptible sleeps. Calling operator() will interrupt
      17                 :            :  * any current sleep, and after that point operator bool() will return true
      18                 :            :  * until reset.
      19                 :            :  *
      20                 :            :  * This class should not be used in a signal handler. It uses thread
      21                 :            :  * synchronization primitives that are not safe to use with signals. If sending
      22                 :            :  * an interrupt from a signal handler is necessary, the \ref SignalInterrupt
      23                 :            :  * class can be used instead.
      24                 :            :  */
      25                 :            : 
      26                 :          0 : class CThreadInterrupt
      27                 :            : {
      28                 :            : public:
      29                 :            :     using Clock = std::chrono::steady_clock;
      30                 :            :     CThreadInterrupt();
      31                 :            :     explicit operator bool() const;
      32                 :            :     void operator()() EXCLUSIVE_LOCKS_REQUIRED(!mut);
      33                 :            :     void reset();
      34                 :            :     bool sleep_for(Clock::duration rel_time) EXCLUSIVE_LOCKS_REQUIRED(!mut);
      35                 :            : 
      36                 :            : private:
      37                 :            :     std::condition_variable cond;
      38                 :            :     Mutex mut;
      39                 :            :     std::atomic<bool> flag;
      40                 :            : };
      41                 :            : 
      42                 :            : #endif // BITCOIN_UTIL_THREADINTERRUPT_H

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