rt-thread/components/libc/time/posix_sleep.c

24 lines
477 B
C

/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#include <stdlib.h>
#include <rtthread.h>
#include <unistd.h>
unsigned int sleep(unsigned int seconds)
{
rt_tick_t delta_tick;
delta_tick = rt_tick_get();
rt_thread_delay(seconds * RT_TICK_PER_SECOND);
delta_tick = rt_tick_get() - delta_tick;
return seconds - delta_tick/RT_TICK_PER_SECOND;
}