| /* |
| * Copyright (c) 2018 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #ifndef __POSIX_UNISTD_H__ |
| #define __POSIX_UNISTD_H__ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include_next <unistd.h> |
| |
| #ifdef CONFIG_PTHREAD_IPC |
| #include "sys/types.h" |
| |
| /** |
| * @brief Sleep for a specified number of seconds. |
| * |
| * See IEEE 1003.1 |
| */ |
| static inline int sleep(unsigned int seconds) |
| { |
| k_sleep(K_SECONDS(seconds)); |
| return 0; |
| } |
| /** |
| * @brief Suspend execution for microsecond intervals. |
| * |
| * See IEEE 1003.1 |
| */ |
| static inline int usleep(useconds_t useconds) |
| { |
| if (useconds < USEC_PER_MSEC) { |
| k_busy_wait(useconds); |
| } else { |
| k_sleep(useconds / USEC_PER_MSEC); |
| } |
| |
| return 0; |
| } |
| |
| #endif |
| #ifdef __cplusplus |
| } |
| #endif |
| #endif /* __POSIX_UNISTD_H__ */ |
