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xiaoguo0742
018288224f
PR-URL: #1716 Reviewed-By: superzheng <superzheng@tencent.com> Reviewed-By: pollyzhang <pollyzhang@tencent.com> Reviewed-By: maxli <maxli@tencent.com> Reviewed-By: ozonelmy <ozonelmy@163.com> Co-authored-by: nolantang <nolantang@tencent.com> Co-authored-by: ivanfanwu <ivanfanwu@tencent.com> Co-authored-by: Zoom Chan <zoom_chan@163.com>
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* Tencent is pleased to support the open source community by making
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* Hippy available.
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*
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* Copyright (C) 2017-2019 THL A29 Limited, a Tencent company.
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <stdint.h>
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#include <chrono>
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#include <iosfwd>
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#include <limits>
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#include "devtools_base/common/time_delta.h"
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namespace hippy::devtools {
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inline namespace time {
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class TimePoint {
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public:
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// Default TimePoint with internal value 0 (epoch).
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constexpr TimePoint() = default;
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static TimePoint Now() {
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return TimePoint(
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std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::steady_clock::now().time_since_epoch())
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.count());
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}
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static constexpr TimePoint Min() { return TimePoint(std::numeric_limits<int64_t>::min()); }
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static constexpr TimePoint Max() { return TimePoint(std::numeric_limits<int64_t>::max()); }
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static constexpr TimePoint FromEpochDelta(TimeDelta ticks) { return TimePoint(ticks.ToNanoseconds()); }
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TimeDelta ToEpochDelta() const { return TimeDelta::FromNanoseconds(ticks_); }
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// Compute the difference between two time points.
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TimeDelta operator-(TimePoint other) const { return TimeDelta::FromNanoseconds(ticks_ - other.ticks_); }
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TimePoint operator+(TimeDelta duration) { return TimePoint(ticks_ + duration.ToNanoseconds()); }
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const TimePoint operator+(TimeDelta duration) const { return TimePoint(ticks_ + duration.ToNanoseconds()); }
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TimePoint operator-(TimeDelta duration) const { return TimePoint(ticks_ - duration.ToNanoseconds()); }
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bool operator==(TimePoint other) const { return ticks_ == other.ticks_; }
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bool operator!=(TimePoint other) const { return ticks_ != other.ticks_; }
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bool operator<(TimePoint other) const { return ticks_ < other.ticks_; }
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bool operator<=(TimePoint other) const { return ticks_ <= other.ticks_; }
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bool operator>(TimePoint other) const { return ticks_ > other.ticks_; }
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bool operator>=(TimePoint other) const { return ticks_ >= other.ticks_; }
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private:
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explicit constexpr TimePoint(int64_t ticks) : ticks_(ticks) {}
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int64_t ticks_ = 0;
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};
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} // namespace time
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} // namespace hippy::devtools
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