1#ifndef _SYS_SELECT_H
2#define _SYS_SELECT_H
3#ifdef __cplusplus
4extern "C" {
5#endif
6
7#include <features.h>
8
9#define __NEED_size_t
10#define __NEED_time_t
11#define __NEED_suseconds_t
12#define __NEED_struct_timeval
13#define __NEED_struct_timespec
14#define __NEED_sigset_t
15
16#include <bits/alltypes.h>
17
18#define FD_SETSIZE 1024
19
20typedef unsigned long fd_mask;
21
22typedef struct {
23 unsigned long fds_bits[FD_SETSIZE / 8 / sizeof(long)];
24} fd_set;
25
26#define FD_ZERO(s) do { int __i; unsigned long *__b=(s)->fds_bits; for(__i=sizeof (fd_set)/sizeof (long); __i; __i--) *__b++=0; } while(0)
27#define FD_SET(d, s) ((s)->fds_bits[(d)/(8*sizeof(long))] |= (1UL<<((d)%(8*sizeof(long)))))
28#define FD_CLR(d, s) ((s)->fds_bits[(d)/(8*sizeof(long))] &= ~(1UL<<((d)%(8*sizeof(long)))))
29#define FD_ISSET(d, s) !!((s)->fds_bits[(d)/(8*sizeof(long))] & (1UL<<((d)%(8*sizeof(long)))))
30
31int select (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, struct timeval *__restrict);
32int pselect (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, const struct timespec *__restrict, const sigset_t *__restrict);
33
34#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
35#define NFDBITS (8*(int)sizeof(long))
36#endif
37
38#if _REDIR_TIME64
39__REDIR(select, __select_time64);
40__REDIR(pselect, __pselect_time64);
41#endif
42
43#ifdef __cplusplus
44}
45#endif
46#endif