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communication_t2stack/nstackx_util/core/nstackx_timer.c
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Agrant a1a794f003 sync git commit
Signed-off-by: Agrant <luojuheng@huawei.com>
2026-01-19 06:04:31 +08:00

63 lines
2.3 KiB
C

/*
* Copyright (C) 2021 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nstackx_timer.h"
#include "nstackx_log.h"
#include "securec.h"
#define TAG "nStackXTimer"
uint32_t GetTimeDiffMs(const struct timespec *etv, const struct timespec *stv)
{
uint64_t ms;
if (etv->tv_sec < stv->tv_sec || (etv->tv_sec == stv->tv_sec && etv->tv_nsec < stv->tv_nsec)) {
LOGE(TAG, "invalid input: etv is smaller than stv");
return 0;
}
if (etv->tv_nsec < stv->tv_nsec) {
ms = ((uint64_t)etv->tv_sec - (uint64_t)stv->tv_sec - 1) * NSTACKX_MILLI_TICKS;
ms += (NSTACKX_NANO_TICKS + (uint64_t)etv->tv_nsec - (uint64_t)stv->tv_nsec) / NSTACKX_MICRO_TICKS;
} else {
ms = ((uint64_t)etv->tv_sec - (uint64_t)stv->tv_sec) * NSTACKX_MILLI_TICKS;
ms += ((uint64_t)etv->tv_nsec - (uint64_t)stv->tv_nsec) / NSTACKX_MICRO_TICKS;
}
if (ms > UINT32_MAX) {
ms = UINT32_MAX;
}
return (uint32_t)ms;
}
uint32_t GetTimeDiffUs(const struct timespec *etv, const struct timespec *stv)
{
uint64_t us;
if (etv->tv_sec < stv->tv_sec || (etv->tv_sec == stv->tv_sec && etv->tv_nsec < stv->tv_nsec)) {
LOGE(TAG, "invalid input: etv is smaller than stv");
return 0;
}
if (etv->tv_nsec < stv->tv_nsec) {
us = ((uint64_t)etv->tv_sec - (uint64_t)stv->tv_sec - 1) * NSTACKX_MICRO_TICKS;
us += (NSTACKX_NANO_TICKS + (uint64_t)etv->tv_nsec - (uint64_t)stv->tv_nsec) / NSTACKX_NANO_SEC_PER_MICRO_SEC;
} else {
us = ((uint64_t)etv->tv_sec - (uint64_t)stv->tv_sec) * NSTACKX_MILLI_TICKS;
us += ((uint64_t)etv->tv_nsec - (uint64_t)stv->tv_nsec) / NSTACKX_NANO_SEC_PER_MICRO_SEC;
}
if (us > UINT32_MAX) {
us = UINT32_MAX;
}
return (uint32_t)us;
}