mirror of
https://github.com/facebook/sapling.git
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aa5e6c7295
Summary: Update the copyright & license headers in C++ files to reflect the relicensing to GPLv2 Reviewed By: wez Differential Revision: D15487078 fbshipit-source-id: 19f24c933a64ecad0d3a692d0f8d2a38b4194b1d
90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#include "eden/fs/utils/TimeUtil.h"
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#include <glog/logging.h>
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#include <folly/Format.h>
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namespace facebook {
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namespace eden {
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std::string durationStr(std::chrono::nanoseconds duration) {
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using namespace std::chrono_literals;
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// This code is good enough for our use case of generating human-readable
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// times in log messages. In the future we could probably be smarter at
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// deciding how much precision to show in the output.
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if (duration < 1us) {
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return folly::sformat("{}ns", duration.count());
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} else if (duration < 1ms) {
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return folly::sformat("{:.3}us", duration.count() / 1000.0);
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} else if (duration < 1s) {
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return folly::sformat("{:.3}ms", duration.count() / 1000000.0);
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} else if (duration < 1min) {
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return folly::sformat("{:.3}s", duration.count() / 1000000000.0);
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} else if (duration < 1h) {
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auto minutes = std::chrono::duration_cast<std::chrono::minutes>(duration);
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auto remainder = duration - minutes;
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return folly::sformat(
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"{}m{:.3}s", minutes.count(), remainder.count() / 1000000000.0);
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} else if (duration < 24h) {
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auto hours = std::chrono::duration_cast<std::chrono::hours>(duration);
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auto remainder = duration - hours;
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auto minutes = std::chrono::duration_cast<std::chrono::minutes>(remainder);
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remainder -= minutes;
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return folly::sformat(
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"{}h{}m{:.3}s",
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hours.count(),
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minutes.count(),
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remainder.count() / 1000000000.0);
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} else {
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using days_type =
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std::chrono::duration<std::chrono::hours::rep, std::ratio<86400>>;
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auto remainder = duration;
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auto days = std::chrono::duration_cast<days_type>(remainder);
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remainder -= days;
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auto hours = std::chrono::duration_cast<std::chrono::hours>(remainder);
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remainder -= hours;
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auto minutes = std::chrono::duration_cast<std::chrono::minutes>(remainder);
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remainder -= minutes;
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return folly::sformat(
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"{}d{:02}h{:02}m{:.3}s",
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days.count(),
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hours.count(),
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minutes.count(),
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remainder.count() / 1000000000.0);
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}
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}
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// Set of all the Comparision operators for comparing two timespec structs.
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bool operator<(const timespec& a, const timespec& b) {
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CHECK_LT(a.tv_nsec, 1000000000);
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CHECK_LT(b.tv_nsec, 1000000000);
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if (a.tv_sec == b.tv_sec) {
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return a.tv_nsec < b.tv_nsec;
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} else {
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return a.tv_sec < b.tv_sec;
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}
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}
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bool operator<=(const timespec& a, const timespec& b) {
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CHECK_LT(a.tv_nsec, 1000000000);
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CHECK_LT(b.tv_nsec, 1000000000);
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if (a.tv_sec == b.tv_sec) {
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return a.tv_nsec <= b.tv_nsec;
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} else {
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return a.tv_sec < b.tv_sec;
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}
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}
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} // namespace eden
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} // namespace facebook
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