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1 #pragma once
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2 #include <mutex>
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3 #include <atomic>
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4
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5 namespace fb2k {
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6 // cache of config values
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7 // STATIC USE ONLY
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8 class configBoolCache {
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9 public:
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10 configBoolCache(const char* var, bool def = false) : m_var(var), m_def(def) {}
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11 bool get();
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12 operator bool() { return get(); }
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13 void set(bool);
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14 void operator=(bool v) { set(v); }
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15
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16 configBoolCache(const configBoolCache&) = delete;
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17 void operator=(const configBoolCache&) = delete;
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18 private:
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19 const char* const m_var;
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20 const bool m_def;
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21 std::atomic_bool m_value = { false };
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22 std::once_flag m_init;
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23 };
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24
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25 class configIntCache {
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26 public:
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27 configIntCache(const char* var, int64_t def = 0) : m_var(var), m_def(def) {}
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28 int64_t get();
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29 operator int64_t() { return get(); }
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30 void set(int64_t);
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31 void operator=(int64_t v) { set(v); }
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32
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33 configIntCache(const configIntCache&) = delete;
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34 void operator=(const configIntCache&) = delete;
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35 private:
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36 const char* const m_var;
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37 const int64_t m_def;
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38 std::atomic_int64_t m_value = { 0 };
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39 std::once_flag m_init;
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40 };
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41 } |
