855b8bc6ca
Previously, the POSIX shell utilities were intermixed with the POSIX API implementation. The POSIX shell utilities only depend on the public POSIX API, so it makes sense to keep them in a separate subdirectory. Signed-off-by: Christopher Friedt <cfriedt@meta.com>
34 lines
851 B
C
34 lines
851 B
C
/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <ksched.h>
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#include <zephyr/posix/time.h>
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#ifdef CONFIG_POSIX_CLOCK
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int64_t timespec_to_timeoutms(const struct timespec *abstime)
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{
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int64_t milli_secs, secs, nsecs;
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struct timespec curtime;
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/* FIXME: Zephyr does have CLOCK_REALTIME to get time.
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* As per POSIX standard time should be calculated wrt CLOCK_REALTIME.
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* Zephyr deviates from POSIX 1003.1 standard on this aspect.
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*/
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clock_gettime(CLOCK_MONOTONIC, &curtime);
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secs = abstime->tv_sec - curtime.tv_sec;
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nsecs = abstime->tv_nsec - curtime.tv_nsec;
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if (secs < 0 || (secs == 0 && nsecs < NSEC_PER_MSEC)) {
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milli_secs = 0;
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} else {
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milli_secs = secs * MSEC_PER_SEC + nsecs / NSEC_PER_MSEC;
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}
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return milli_secs;
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}
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#endif /* CONFIG_POSIX_CLOCK */
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