86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/*
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* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _TIME_PRI_H
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#define _TIME_PRI_H
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#include "time.h"
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#include "errno.h"
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#include "los_sys_pri.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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/* internal functions */
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STATIC INLINE BOOL ValidTimeSpec(const struct timespec *tp)
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{
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/* Fail a NULL pointer */
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if (tp == NULL) {
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return FALSE;
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}
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/* Fail illegal nanosecond values */
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if ((tp->tv_nsec < 0) || (tp->tv_nsec >= OS_SYS_NS_PER_SECOND) || (tp->tv_sec < 0)) {
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return FALSE;
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}
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return TRUE;
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}
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STATIC INLINE UINT32 OsTimeSpec2Tick(const struct timespec *tp)
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{
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UINT64 tick, ns;
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ns = (UINT64)tp->tv_sec * OS_SYS_NS_PER_SECOND + tp->tv_nsec;
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/* Round up for ticks */
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tick = (ns * LOSCFG_BASE_CORE_TICK_PER_SECOND + (OS_SYS_NS_PER_SECOND - 1)) / OS_SYS_NS_PER_SECOND;
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if (tick > LOS_WAIT_FOREVER) {
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tick = LOS_WAIT_FOREVER;
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}
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return (UINT32)tick;
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}
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STATIC INLINE VOID OsTick2TimeSpec(struct timespec *tp, UINT32 tick)
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{
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UINT64 ns = ((UINT64)tick * OS_SYS_NS_PER_SECOND) / LOSCFG_BASE_CORE_TICK_PER_SECOND;
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tp->tv_sec = (time_t)(ns / OS_SYS_NS_PER_SECOND);
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tp->tv_nsec = (long)(ns % OS_SYS_NS_PER_SECOND);
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}
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _TIME_PRI_H */ |