wehub-resource-sync
47 lines
1.1 KiB
C++
Executable File
47 lines
1.1 KiB
C++
Executable File
#pragma once
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#include <chrono>
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class Timer {
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public:
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using Seconds = std::ratio<1>;
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using Milliseconds = std::milli;
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using Microseconds = std::micro;
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using Nanoseconds = std::nano;
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using s = Seconds;
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using ms = Milliseconds;
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using us = Microseconds;
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using ns = Nanoseconds;
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public:
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Timer(const bool eager = false) {
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if (eager) {
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start();
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}
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};
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void start() { mStart = std::chrono::high_resolution_clock::now(); }
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template <typename Unit = Seconds>
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double elapsed() const {
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const auto now = std::chrono::high_resolution_clock::now();
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return std::chrono::duration<double, Unit>(now - mStart).count();
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}
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template <typename Unit = Seconds>
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double stop() {
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return reset<Unit>();
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}
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template <typename Unit = Seconds>
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double reset() {
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const auto now = std::chrono::high_resolution_clock::now();
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const double elapsed = std::chrono::duration<double, Unit>(now - mStart).count();
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mStart = now;
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return elapsed;
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}
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private:
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std::chrono::time_point<std::chrono::high_resolution_clock> mStart;
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}; |