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
20#ifdef __wasilibc_unmodified_upstream /* Use alternate WASI libc headers */
21typedef unsigned long fd_mask;
22#endif
23
24#ifdef __wasilibc_unmodified_upstream /* Use alternate WASI libc headers */
25typedef struct {
26	unsigned long fds_bits[FD_SETSIZE / 8 / sizeof(long)];
27} fd_set;
28
29#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)
30#define FD_SET(d, s)   ((s)->fds_bits[(d)/(8*sizeof(long))] |= (1UL<<((d)%(8*sizeof(long)))))
31#define FD_CLR(d, s)   ((s)->fds_bits[(d)/(8*sizeof(long))] &= ~(1UL<<((d)%(8*sizeof(long)))))
32#define FD_ISSET(d, s) !!((s)->fds_bits[(d)/(8*sizeof(long))] & (1UL<<((d)%(8*sizeof(long)))))
33#else
34#include <__fd_set.h>
35#endif
36
37int select (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, struct timeval *__restrict);
38int pselect (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, const struct timespec *__restrict, const sigset_t *__restrict);
39
40#ifdef __wasilibc_unmodified_upstream /* Use alternate WASI libc headers */
41#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
42#define NFDBITS (8*(int)sizeof(long))
43#endif
44#endif
45
46#if _REDIR_TIME64
47__REDIR(select, __select_time64);
48__REDIR(pselect, __pselect_time64);
49#endif
50
51#ifdef __cplusplus
52}
53#endif
54#endif