55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#include "time.h"
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#include "private/time.h"
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__KNL__ k_tick_t timespec_to_ktick(const struct timespec *tp)
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{
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int nsecond, second;
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struct timespec curr_tp;
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TOS_PTR_SANITY_CHECK_RC(tp, (k_tick_t)-1);
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clock_gettime(CLOCK_REALTIME, &curr_tp);
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if (tp->tv_nsec - curr_tp.tv_nsec < 0) {
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nsecond = NANOSECOND_PER_SECOND - (curr_tp.tv_nsec - tp->tv_nsec);
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second = tp->tv_sec - curr_tp.tv_sec - 1;
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} else {
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nsecond = tp->tv_nsec - curr_tp.tv_nsec;
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second = tp->tv_sec - curr_tp.tv_sec;
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}
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if (second < 0) {
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return (k_tick_t)0u;
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}
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return (k_tick_t)(second * TOS_CFG_CPU_TICK_PER_SECOND + nsecond * TOS_CFG_CPU_TICK_PER_SECOND / NANOSECOND_PER_SECOND);
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}
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__KNL__ void ktick_to_timespec(k_tick_t ktick, struct timespec *tp)
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{
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if (!tp) {
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return;
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}
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tp->tv_sec = ktick / TOS_CFG_CPU_TICK_PER_SECOND;
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tp->tv_nsec = (ktick % TOS_CFG_CPU_TICK_PER_SECOND) * ((long)1000000000 / TOS_CFG_CPU_TICK_PER_SECOND);
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}
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