rt-thread-official/components/libc/posix/delay/delay.c

79 lines
1.2 KiB
C

/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-05-07 Meco Man first Version
*/
#include <sys/types.h>
#include <rtthread.h>
#include <rthw.h>
void msleep(unsigned int msecs)
{
rt_thread_mdelay(msecs);
}
RTM_EXPORT(msleep);
void ssleep(unsigned int seconds)
{
msleep(seconds * 1000);
}
RTM_EXPORT(ssleep);
void mdelay(unsigned long msecs)
{
rt_hw_us_delay(msecs * 1000);
}
RTM_EXPORT(mdelay);
void udelay(unsigned long usecs)
{
rt_hw_us_delay(usecs);
}
RTM_EXPORT(udelay);
void ndelay(unsigned long nsecs)
{
rt_hw_us_delay(1);
}
RTM_EXPORT(ndelay);
unsigned int sleep(unsigned int seconds)
{
if (rt_thread_self() != RT_NULL)
{
ssleep(seconds);
}
else /* scheduler has not run yet */
{
while(seconds > 0)
{
udelay(1000000u);
seconds --;
}
}
return 0;
}
RTM_EXPORT(sleep);
int usleep(useconds_t usec)
{
if (rt_thread_self() != RT_NULL)
{
msleep(usec / 1000u);
udelay(usec % 1000u);
}
else /* scheduler has not run yet */
{
udelay(usec);
}
return 0;
}
RTM_EXPORT(usleep);