35 lines
637 B
C++
35 lines
637 B
C++
// Copyright (c) OpenMMLab. All rights reserved.
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#pragma once
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#include <sys/time.h>
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#include <cstdio>
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#include <memory>
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#include <string>
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class ScopeTimer {
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public:
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ScopeTimer(std::string _name, bool _print = false) : name(_name), print(_print) { begin = now(); }
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~ScopeTimer() {
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if (!print) {
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return;
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}
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fprintf(stdout, "%s: %ldms\n", name.c_str(), (now() - begin));
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}
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long now() const {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv.tv_sec * 1000 + (tv.tv_usec / 1000);
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}
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long cost() const { return now() - begin; }
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private:
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std::string name;
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bool print;
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long begin;
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};
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