Abseil Common Libraries (C++) (grcp 依赖)
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23 lines
549 B
23 lines
549 B
7 years ago
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#include "absl/time/clock.h"
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#include <sys/time.h>
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#include <ctime>
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#include <cstdint>
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#include "absl/base/internal/raw_logging.h"
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namespace absl {
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namespace time_internal {
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static int64_t GetCurrentTimeNanosFromSystem() {
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const int64_t kNanosPerSecond = 1000 * 1000 * 1000;
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struct timespec ts;
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ABSL_RAW_CHECK(clock_gettime(CLOCK_REALTIME, &ts) == 0,
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"Failed to read real-time clock.");
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return (int64_t{ts.tv_sec} * kNanosPerSecond +
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int64_t{ts.tv_nsec});
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}
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} // namespace time_internal
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} // namespace absl
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