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https://github.com/RIOT-OS/RIOT.git
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08ae9bd771
Added all sensible conversion factors up to days and ordered them.
118 lines
2.2 KiB
C
118 lines
2.2 KiB
C
/*
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* Copyright (C) 2021 Kaspar Schleiser <kaspar@schleiser.de>
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* Copyright (C) 2014 Oliver Hahm <oliver.hahm@inria.fr>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup sys_time_units Time unit representations
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* @brief Timestamp representation, computation, and conversion
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* @ingroup sys
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*
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* @{
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* @file
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* @brief Utility header providing time unit defines
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*/
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#ifndef TIME_UNITS_H
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#define TIME_UNITS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief The number of hours per day
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*/
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#define HOURS_PER_DAY (24LU)
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/**
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* @brief The number of minutes per day
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*/
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#define MIN_PER_DAY (1440LU)
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/**
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* @brief The number of seconds per day
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*/
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#define SEC_PER_DAY (86400LU)
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/**
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* @brief The number of minutes per hour
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*/
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#define MIN_PER_HOUR (60LU)
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/**
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* @brief The number of seconds per hour
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*/
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#define SEC_PER_HOUR (3600LU)
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/**
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* @brief The number of milliseconds per hour
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*/
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#define MS_PER_HOUR (3600000LU)
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/**
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* @brief The number of microseconds per hour
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*/
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#define US_PER_HOUR (3600000000LU)
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/**
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* @brief The number of seconds per minute
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*/
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#define SEC_PER_MIN (60LU)
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/**
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* @brief The number of centiseconds per second
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*/
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#define CS_PER_SEC (100LU)
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/**
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* @brief The number of milliseconds per second
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*/
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#define MS_PER_SEC (1000LU)
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/**
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* @brief The number of milliseconds per centisecond
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*/
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#define MS_PER_CS (10U)
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/**
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* @brief The number of microseconds per second
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*/
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#define US_PER_SEC (1000000LU)
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/**
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* @brief The number of microseconds per millisecond
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*/
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#define US_PER_MS (1000LU)
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/**
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* @brief The number of microseconds per centisecond
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*/
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#define US_PER_CS (10000U)
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/**
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* @brief The number of nanoseconds per microsecond
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*/
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#define NS_PER_US (1000LU)
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/**
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* @brief The number of nanoseconds per millisecond
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*/
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#define NS_PER_MS (1000000LU)
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/**
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* @brief The number of nanoseconds per second
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*/
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#define NS_PER_SEC (1000000000LLU)
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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#endif /* TIME_UNITS_H */
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