nrnmutdec.hpp

Go to the documentation of this file.

/*
# =============================================================================
# Copyright (c) 2016 - 2021 Blue Brain Project/EPFL
#
# See top-level LICENSE file for details.
# =============================================================================.
*/
#pragma once
 
#if defined(_OPENMP)
#include <omp.h>
 
// This class respects the requirement *Mutex*
class OMP_Mutex {
  public:
    // Default constructible
    OMP_Mutex() {
        omp_init_lock(&mut_);
    }
 
    // Destructible
    ~OMP_Mutex() {
        omp_destroy_lock(&mut_);
    }
 
    // Not copyable
    OMP_Mutex(const OMP_Mutex&) = delete;
    OMP_Mutex& operator=(const OMP_Mutex&) = delete;
 
    // Not movable
    OMP_Mutex(const OMP_Mutex&&) = delete;
    OMP_Mutex& operator=(const OMP_Mutex&&) = delete;
 
    // Basic Lockable
    void lock() {
        omp_set_lock(&mut_);
    }
 
    void unlock() {
        omp_unset_lock(&mut_);
    }
 
    // Lockable
    bool try_lock() {
        return omp_test_lock(&mut_) != 0;
    }
 
  private:
    omp_lock_t mut_;
};
 
#else
 
// This class respects the requirement *Mutex*
class OMP_Mutex {
  public:
    // Default constructible
    OMP_Mutex() = default;
 
    // Destructible
    ~OMP_Mutex() = default;
 
    // Not copyable
    OMP_Mutex(const OMP_Mutex&) = delete;
    OMP_Mutex& operator=(const OMP_Mutex&) = delete;
 
    // Not movable
    OMP_Mutex(const OMP_Mutex&&) = delete;
    OMP_Mutex& operator=(const OMP_Mutex&&) = delete;
 
    // Basic Lockable
    void lock() {}
 
    void unlock() {}
 
    // Lockable
    bool try_lock() {
        return true;
    }
};
#endif