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 static __attribute__((unused))
msleep(unsigned int msecs)17 int msleep(unsigned int msecs)
18 {
19 struct timeval my_timeval = { msecs / 1000, (msecs % 1000) * 1000 };
20
21 if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
22 return (my_timeval.tv_sec * 1000) +
23 (my_timeval.tv_usec / 1000) +
24 !!(my_timeval.tv_usec % 1000);
25 else
26 return 0;
27 }
28
29 static __attribute__((unused))
sleep(unsigned int seconds)30 unsigned int sleep(unsigned int seconds)
31 {
32 struct timeval my_timeval = { seconds, 0 };
33
34 if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
35 return my_timeval.tv_sec + !!my_timeval.tv_usec;
36 else
37 return 0;
38 }
39
40 static __attribute__((unused))
usleep(unsigned int usecs)41 int usleep(unsigned int usecs)
42 {
43 struct timeval my_timeval = { usecs / 1000000, usecs % 1000000 };
44
45 return sys_select(0, 0, 0, 0, &my_timeval);
46 }
47
48 static __attribute__((unused))
tcsetpgrp(int fd,pid_t pid)49 int tcsetpgrp(int fd, pid_t pid)
50 {
51 return ioctl(fd, TIOCSPGRP, &pid);
52 }
53
54 /* make sure to include all global symbols */
55 #include "nolibc.h"
56
57 #endif /* _NOLIBC_UNISTD_H */
58