1#ifndef __wasilibc___fd_set_h
 2#define __wasilibc___fd_set_h
 3
 4#include <__typedef_fd_set.h>
 5
 6#ifdef __cplusplus
 7extern "C" {
 8#endif
 9
10static __inline void FD_CLR(int __fd, fd_set *__set) {
11    size_t __n = __set->__nfds;
12    for (int *__p = __set->__fds, *__e = __p + __n;
13         __p < __e; ++__p)
14    {
15        if (*__p == __fd) {
16            *__p = __e[-1];
17            __set->__nfds = __n - 1;
18            return;
19        }
20    }
21}
22
23static __inline
24#ifdef __cplusplus
25bool
26#else
27_Bool
28#endif
29FD_ISSET(int __fd, const fd_set *__set)
30{
31    size_t __n = __set->__nfds;
32    for (const int *__p = __set->__fds, *__e = __p + __n;
33         __p < __e; ++__p)
34    {
35        if (*__p == __fd) {
36            return 1;
37        }
38    }
39    return 0;
40}
41
42static __inline void FD_SET(int __fd, fd_set *__set) {
43    size_t __n = __set->__nfds;
44    for (const int *__p = __set->__fds, *__e = __p + __n;
45         __p < __e; ++__p)
46    {
47        if (*__p == __fd) {
48            return;
49        }
50    }
51    __set->__nfds = __n + 1;
52    __set->__fds[__n] = __fd;
53}
54
55static __inline void FD_ZERO(fd_set *__set) {
56    __set->__nfds = 0;
57}
58
59static __inline void FD_COPY(const fd_set *__restrict __from,
60                             fd_set *__restrict __to) {
61    size_t __n = __from->__nfds;
62    __to->__nfds = __n;
63    __builtin_memcpy(__to->__fds, __from->__fds, __n * sizeof(int));
64}
65
66#define FD_CLR(fd, set)   (FD_CLR((fd), (set)))
67#define FD_ISSET(fd, set) (FD_ISSET((fd), (set)))
68#define FD_SET(fd, set)   (FD_SET((fd), (set)))
69#define FD_ZERO(set)      (FD_ZERO((set)))
70#define FD_COPY(from, to) (FD_COPY((from), (to)))
71
72#ifdef __cplusplus
73}
74#endif
75
76#endif