1/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ 2/* 3 * unistd function definitions for NOLIBC 4 * Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu> 5 */ 6 7#ifndef _NOLIBC_UNISTD_H 8#define _NOLIBC_UNISTD_H 9 10#include "std.h" 11#include "arch.h" 12#include "types.h" 13#include "sys.h" 14 15 16#define STDIN_FILENO 0 17#define STDOUT_FILENO 1 18#define STDERR_FILENO 2 19 20 21static __attribute__((unused)) 22int msleep(unsigned int msecs) 23{ 24 struct timeval my_timeval = { msecs / 1000, (msecs % 1000) * 1000 }; 25 26 if (sys_select(0, 0, 0, 0, &my_timeval) < 0) 27 return (my_timeval.tv_sec * 1000) + 28 (my_timeval.tv_usec / 1000) + 29 !!(my_timeval.tv_usec % 1000); 30 else 31 return 0; 32} 33 34static __attribute__((unused)) 35unsigned int sleep(unsigned int seconds) 36{ 37 struct timeval my_timeval = { seconds, 0 }; 38 39 if (sys_select(0, 0, 0, 0, &my_timeval) < 0) 40 return my_timeval.tv_sec + !!my_timeval.tv_usec; 41 else 42 return 0; 43} 44 45static __attribute__((unused)) 46int usleep(unsigned int usecs) 47{ 48 struct timeval my_timeval = { usecs / 1000000, usecs % 1000000 }; 49 50 return sys_select(0, 0, 0, 0, &my_timeval); 51} 52 53static __attribute__((unused)) 54int tcsetpgrp(int fd, pid_t pid) 55{ 56 return ioctl(fd, TIOCSPGRP, &pid); 57} 58 59#define __syscall_narg(_0, _1, _2, _3, _4, _5, _6, N, ...) N 60#define _syscall_narg(...) __syscall_narg(__VA_ARGS__, 6, 5, 4, 3, 2, 1, 0) 61#define _syscall(N, ...) __sysret(my_syscall##N(__VA_ARGS__)) 62#define _syscall_n(N, ...) _syscall(N, __VA_ARGS__) 63#define syscall(...) _syscall_n(_syscall_narg(__VA_ARGS__), ##__VA_ARGS__) 64 65/* make sure to include all global symbols */ 66#include "nolibc.h" 67 68#endif /* _NOLIBC_UNISTD_H */ 69