subrepo: subdir: "components/etl" merged: "be5537ec" upstream: origin: "git@github.com:ETLCPP/etl.git" branch: "20.41.6" commit: "be5537ec" git-subrepo: version: "0.4.9" origin: "???" commit: "???"
175 lines
5.9 KiB
C++
175 lines
5.9 KiB
C++
/******************************************************************************
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The MIT License(MIT)
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Embedded Template Library.
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https://github.com/ETLCPP/etl
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https://www.etlcpp.com
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Documentation:
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Copyright(c) 2025 John Wellbelove
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files(the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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******************************************************************************/
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#include "etl/platform.h"
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#include "unit_test_framework.h"
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#include "etl/chrono.h"
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#include <type_traits>
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//*****************************************************************************
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// Global clock functions.
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//*****************************************************************************
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namespace
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{
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int nanoseconds = 0;
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int milliseconds = 0;
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int seconds = 0;
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}
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extern "C"
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{
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etl::chrono::system_clock::rep etl_get_system_clock()
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{
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return etl::chrono::system_clock::rep(milliseconds);
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}
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etl::chrono::high_resolution_clock::rep etl_get_high_resolution_clock()
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{
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return etl::chrono::high_resolution_clock::rep(nanoseconds);
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}
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etl::chrono::steady_clock::rep etl_get_steady_clock()
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{
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return etl::chrono::steady_clock::rep(seconds);
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}
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}
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namespace
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{
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SUITE(test_chrono_clocks)
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{
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//*************************************************************************
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TEST(test_system_clock)
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{
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using Clock = etl::chrono::system_clock;
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using TimePoint = etl::chrono::time_point<Clock>;
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using Duration = ETL_CHRONO_SYSTEM_CLOCK_DURATION;
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CHECK_TRUE((std::is_same<TimePoint, Clock::time_point>::value));
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CHECK_TRUE((std::is_same<Duration, Clock::duration>::value));
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CHECK_TRUE((std::is_same<Duration::rep, Clock::duration::rep>::value));
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CHECK_TRUE((std::is_same<Duration::period, Clock::duration::period>::value));
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CHECK_FALSE(Clock::is_steady); // Set in etl_profile.h
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Clock::time_point now;
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milliseconds = 1000;
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now = Clock::now();
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CHECK_EQUAL(1000, now.time_since_epoch().count());
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milliseconds = 2000;
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now = Clock::now();
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CHECK_EQUAL(2000, now.time_since_epoch().count());
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// Convert to seconds.
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etl::time_t time = Clock::to_time_t(now);
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CHECK_EQUAL(2, time);
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// Convert back to a TimePoint.
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TimePoint tp2 = Clock::from_time_t(time);
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CHECK_EQUAL(2000, tp2.time_since_epoch().count());
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}
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//*************************************************************************
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TEST(test_high_resolution_clock)
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{
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using Clock = etl::chrono::high_resolution_clock;
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using TimePoint = etl::chrono::time_point<Clock>;
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using Duration = ETL_CHRONO_HIGH_RESOLUTION_CLOCK_DURATION;
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CHECK_TRUE((std::is_same<TimePoint, Clock::time_point>::value));
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CHECK_TRUE((std::is_same<Duration, Clock::duration>::value));
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CHECK_TRUE((std::is_same<Duration::rep, Clock::duration::rep>::value));
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CHECK_TRUE((std::is_same<Duration::period, Clock::duration::period>::value));
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CHECK_TRUE(Clock::is_steady);
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Clock::time_point now;
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nanoseconds = 1;
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now = Clock::now();
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CHECK_EQUAL(1, now.time_since_epoch().count());
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nanoseconds = 2;
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now = Clock::now();
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CHECK_EQUAL(2, now.time_since_epoch().count());
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}
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//*************************************************************************
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TEST(test_steady_clock)
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{
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using Clock = etl::chrono::steady_clock;
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using TimePoint = etl::chrono::time_point<Clock>;
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using Duration = ETL_CHRONO_STEADY_CLOCK_DURATION;
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CHECK_TRUE((std::is_same<TimePoint, Clock::time_point>::value));
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CHECK_TRUE((std::is_same<Duration, Clock::duration>::value));
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CHECK_TRUE((std::is_same<Duration::rep, Clock::duration::rep>::value));
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CHECK_TRUE((std::is_same<Duration::period, Clock::duration::period>::value));
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CHECK_TRUE(Clock::is_steady);
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Clock::time_point now;
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seconds = 1;
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now = Clock::now();
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CHECK_EQUAL(1, now.time_since_epoch().count());
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seconds = 2;
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now = Clock::now();
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CHECK_EQUAL(2, now.time_since_epoch().count());
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}
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//*************************************************************************
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TEST(test_clock_cast)
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{
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using FromClock = etl::chrono::system_clock;
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using FromTimePoint = etl::chrono::time_point<FromClock>;
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using FromDuration = FromClock::duration;
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using ToClock = etl::chrono::steady_clock;
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using ToTimePoint = etl::chrono::time_point<ToClock>;
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using ToDuration = ToClock::duration;
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FromTimePoint from_tp(FromDuration(1000));
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ToTimePoint to_tp = etl::chrono::clock_cast<ToClock>(from_tp);
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auto num_sys_clock = FromDuration::period::den;
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auto num_steady_clock = ToDuration::period::num;
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auto sys_clock_count = from_tp.time_since_epoch().count();
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auto scaled_steady_lock_count = (to_tp.time_since_epoch().count() * num_sys_clock) / num_steady_clock;
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CHECK_EQUAL(sys_clock_count, scaled_steady_lock_count);
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}
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};
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}
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