8bcf005084
This change adds support for nanosleep(2) documented at https://pubs.opengroup.org/onlinepubs/9699919799/functions/nanosleep.html N.B: Currently, this provides no better resolution than k_busy_wait() Fixes #25554 Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_POSIX_TIME_H_
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#define ZEPHYR_INCLUDE_POSIX_TIME_H_
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#ifdef CONFIG_NEWLIB_LIBC
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/* Kludge to support outdated newlib version as used in SDK 0.10 for Xtensa */
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#include <newlib.h>
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#ifdef __NEWLIB__
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/* Newever Newlib 3.x+ */
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#include <sys/timespec.h>
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#else /* __NEWLIB__ */
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/* Workaround for older Newlib 2.x, as used by Xtensa. It lacks sys/_timeval.h,
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* so mimic it here.
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*/
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#include <sys/types.h>
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#ifndef __timespec_defined
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct timespec {
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time_t tv_sec;
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long tv_nsec;
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};
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struct itimerspec {
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struct timespec it_interval; /* Timer interval */
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struct timespec it_value; /* Timer expiration */
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* __timespec_defined */
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#endif /* __NEWLIB__ */
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#else /* CONFIG_NEWLIB_LIBC */
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/* Not Newlib */
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# ifdef CONFIG_ARCH_POSIX
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# include <bits/types/struct_timespec.h>
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# include <bits/types/struct_itimerspec.h>
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# else
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# include <sys/timespec.h>
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# endif
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#endif /* CONFIG_NEWLIB_LIBC */
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#include <kernel.h>
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#include <errno.h>
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#include "posix_types.h"
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#include <posix/signal.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef CLOCK_REALTIME
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#define CLOCK_REALTIME 1
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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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#define NSEC_PER_MSEC (NSEC_PER_USEC * USEC_PER_MSEC)
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#ifndef TIMER_ABSTIME
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#define TIMER_ABSTIME 4
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#endif
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static inline int32_t _ts_to_ms(const struct timespec *to)
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{
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return (to->tv_sec * MSEC_PER_SEC) + (to->tv_nsec / NSEC_PER_MSEC);
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}
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#ifdef CONFIG_ARCH_POSIX
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int clock_gettime(clockid_t clock_id, struct timespec *ts);
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#else
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__syscall int clock_gettime(clockid_t clock_id, struct timespec *ts);
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#endif /* CONFIG_ARCH_POSIX */
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int clock_settime(clockid_t clock_id, const struct timespec *ts);
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/* Timer APIs */
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int timer_create(clockid_t clockId, struct sigevent *evp, timer_t *timerid);
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int timer_delete(timer_t timerid);
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int timer_gettime(timer_t timerid, struct itimerspec *its);
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int timer_settime(timer_t timerid, int flags, const struct itimerspec *value,
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struct itimerspec *ovalue);
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int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
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#ifdef __cplusplus
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}
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#endif
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#ifndef CONFIG_ARCH_POSIX
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#include <syscalls/time.h>
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#endif /* CONFIG_ARCH_POSIX */
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#endif /* ZEPHYR_INCLUDE_POSIX_TIME_H_ */
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