monotonic_timer.hpp

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#pragma once
 
#include <chrono>
#include <utility>
 
namespace mbgl {
namespace util {
 
class MonotonicTimer {
public:
    static std::chrono::duration<double> now();
 
    template <typename F, typename... Args>
    inline static std::chrono::duration<double> duration(F&& func, Args&&... args) {
        auto start = now();
        func(std::forward<Args>(args)...);
        return now() - start;
    }
};
 
} // namespace util
} // namespace mbgl