xref: /nrf52832-nimble/rt-thread/components/libc/time/posix_sleep.c (revision 104654410c56c573564690304ae786df310c91fc) 
1*10465441SEvalZero /*
2*10465441SEvalZero  * Copyright (c) 2006-2018, RT-Thread Development Team
3*10465441SEvalZero  *
4*10465441SEvalZero  * SPDX-License-Identifier: Apache-2.0
5*10465441SEvalZero  *
6*10465441SEvalZero  * Change Logs:
7*10465441SEvalZero  * Date           Author       Notes
8*10465441SEvalZero  */
9*10465441SEvalZero #include <stdlib.h>
10*10465441SEvalZero #include <rtthread.h>
11*10465441SEvalZero 
12*10465441SEvalZero #include <unistd.h>
13*10465441SEvalZero 
sleep(unsigned int seconds)14*10465441SEvalZero unsigned int sleep(unsigned int seconds)
15*10465441SEvalZero {
16*10465441SEvalZero     rt_tick_t delta_tick;
17*10465441SEvalZero 
18*10465441SEvalZero     delta_tick = rt_tick_get();
19*10465441SEvalZero     rt_thread_delay(seconds * RT_TICK_PER_SECOND);
20*10465441SEvalZero     delta_tick = rt_tick_get() - delta_tick;
21*10465441SEvalZero 
22*10465441SEvalZero     return seconds - delta_tick/RT_TICK_PER_SECOND;
23*10465441SEvalZero }
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