summaryrefslogtreecommitdiff
path: root/lib/spdlog/details/null_mutex.h
blob: 3f495bd98a36ad48174a0e0e51acf73f670d9952 (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
37
38
39
40
41
42
43
44
45
//
// Copyright(c) 2015 Gabi Melman.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
//

#pragma once

#include <atomic>
// null, no cost dummy "mutex" and dummy "atomic" int

namespace spdlog {
namespace details {
struct null_mutex
{
    void lock() {}
    void unlock() {}
    bool try_lock()
    {
        return true;
    }
};

struct null_atomic_int
{
    int value;
    null_atomic_int() = default;

    explicit null_atomic_int(int val)
        : value(val)
    {
    }

    int load(std::memory_order) const
    {
        return value;
    }

    void store(int val)
    {
        value = val;
    }
};

} // namespace details
} // namespace spdlog