60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-04-27 flybreak the first version.
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*/
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#pragma once
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#include <cstdlib>
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#include <system_error>
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#include <chrono>
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#include <ratio>
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#include <rtthread.h>
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#define RT_USING_CPP_EXCEPTION
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inline void throw_system_error(int err, const char *what_msg)
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{
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#ifdef RT_USING_CPP_EXCEPTION
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throw std::system_error(std::error_code(err, std::system_category()), what_msg);
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#else
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(void)err;
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(void)what_msg;
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::abort();
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#endif
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}
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class tick_clock
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{
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public:
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typedef clock_t rep;
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typedef std::ratio<1, RT_TICK_PER_SECOND> period;
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typedef std::chrono::duration<tick_clock::rep, tick_clock::period> duration;
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typedef std::chrono::time_point<tick_clock> time_point;
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constexpr static bool is_ready = true;
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static time_point now();
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};
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class real_time_clock
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{
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public:
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typedef std::chrono::nanoseconds duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef std::chrono::time_point<real_time_clock, duration> time_point;
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static constexpr bool is_steady = true;
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static time_point
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now() noexcept;
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};
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