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25 lines
616 B
C++
25 lines
616 B
C++
#include <LibGUI/GElapsedTimer.h>
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void GElapsedTimer::start()
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{
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gettimeofday(&m_start_time, nullptr);
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}
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inline void timersub(const struct timeval* a, const struct timeval* b, struct timeval* result)
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{
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result->tv_sec = a->tv_sec - b->tv_sec;
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result->tv_usec = a->tv_usec - b->tv_usec;
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if (result->tv_usec < 0) {
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--result->tv_sec;
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result->tv_usec += 1000000;
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}
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}
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int GElapsedTimer::elapsed() const
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{
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struct timeval now;
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gettimeofday(&now, nullptr);
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struct timeval diff;
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timersub(&now, &m_start_time, &diff);
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return diff.tv_sec * 1000 + diff.tv_usec / 1000;
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}
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