53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* Copyright (c) 2006-2018, 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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* 2017-12-31 Bernard the first version
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*/
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#ifndef CLOCK_TIME_H__
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#define CLOCK_TIME_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* posix clock and timer */
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#define MILLISECOND_PER_SECOND 1000UL
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#define MICROSECOND_PER_SECOND 1000000UL
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#define NANOSECOND_PER_SECOND 1000000000UL
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#define MILLISECOND_PER_TICK (MILLISECOND_PER_SECOND / RT_TICK_PER_SECOND)
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#define MICROSECOND_PER_TICK (MICROSECOND_PER_SECOND / RT_TICK_PER_SECOND)
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#define NANOSECOND_PER_TICK (NANOSECOND_PER_SECOND / RT_TICK_PER_SECOND)
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#ifndef CLOCK_REALTIME
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#define CLOCK_REALTIME 1
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#endif
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#define CLOCK_CPUTIME_ID 2
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#ifndef CLOCK_PROCESS_CPUTIME_ID
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#define CLOCK_PROCESS_CPUTIME_ID CLOCK_CPUTIME_ID
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#endif
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#ifndef CLOCK_THREAD_CPUTIME_ID
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#define CLOCK_THREAD_CPUTIME_ID CLOCK_CPUTIME_ID
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#endif
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#ifndef CLOCK_MONOTONIC
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#define CLOCK_MONOTONIC 4
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#endif
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int clock_getres (clockid_t clockid, struct timespec *res);
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int clock_gettime (clockid_t clockid, struct timespec *tp);
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int clock_settime (clockid_t clockid, const struct timespec *tp);
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#ifdef __cplusplus
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}
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#endif
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#endif
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