1 | /*␊ |
2 | * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved.␊ |
3 | *␊ |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
5 | * ␊ |
6 | * This file contains Original Code and/or Modifications of Original Code␊ |
7 | * as defined in and that are subject to the Apple Public Source License␊ |
8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
9 | * compliance with the License. The rights granted to you under the License␊ |
10 | * may not be used to create, or enable the creation or redistribution of,␊ |
11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
13 | * terms of an Apple operating system software license agreement.␊ |
14 | * ␊ |
15 | * Please obtain a copy of the License at␊ |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
17 | * ␊ |
18 | * The Original Code and all software distributed under the License are␊ |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
23 | * Please see the License for the specific language governing rights and␊ |
24 | * limitations under the License.␊ |
25 | * ␊ |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
27 | */␊ |
28 | ␊ |
29 | #include <sys/cdefs.h>␊ |
30 | #include <sys/_types.h>␊ |
31 | ␊ |
32 | #ifdef __need_struct_timespec␊ |
33 | #undef __need_struct_timespec␊ |
34 | #ifndef _STRUCT_TIMESPEC␊ |
35 | #define _STRUCT_TIMESPEC␉struct timespec␊ |
36 | _STRUCT_TIMESPEC␊ |
37 | {␊ |
38 | ␉__darwin_time_t␉tv_sec;␊ |
39 | ␉long␉␉tv_nsec;␊ |
40 | };␊ |
41 | #endif /* _STRUCT_TIMESPEC */␊ |
42 | #endif /* __need_struct_timespec */␊ |
43 | ␊ |
44 | #ifdef __need_struct_timeval␊ |
45 | #undef __need_struct_timeval␊ |
46 | #ifndef _STRUCT_TIMEVAL␊ |
47 | #define _STRUCT_TIMEVAL␉␉struct timeval␊ |
48 | _STRUCT_TIMEVAL␊ |
49 | {␊ |
50 | ␉__darwin_time_t␉␉tv_sec;␉␉/* seconds */␊ |
51 | ␉__darwin_suseconds_t␉tv_usec;␉/* and microseconds */␊ |
52 | };␊ |
53 | #endif /* _STRUCT_TIMEVAL */␊ |
54 | #endif /* __need_struct_timeval */␊ |
55 | ␊ |
56 | #ifdef __need_struct_timeval32␊ |
57 | #undef __need_struct_timeval32␊ |
58 | #ifndef _STRUCT_TIMEVAL32␊ |
59 | #define _STRUCT_TIMEVAL32␉struct timeval32␊ |
60 | _STRUCT_TIMEVAL32␊ |
61 | {␊ |
62 | ␉__int32_t␉␉tv_sec;␉␉/* seconds */␊ |
63 | ␉__int32_t␉␉tv_usec;␉/* and microseconds */␊ |
64 | };␊ |
65 | #endif /* _STRUCT_TIMEVAL32 */␊ |
66 | #endif /* __need_struct_timeval32 */␊ |
67 | ␊ |
68 | ␊ |
69 | #ifdef __need_fd_set␊ |
70 | #undef __need_fd_set␊ |
71 | #ifndef _FD_SET␊ |
72 | #define _FD_SET␊ |
73 | /*␊ |
74 | * Select uses bit masks of file descriptors in longs. These macros␊ |
75 | * manipulate such bit fields (the filesystem macros use chars). The␊ |
76 | * extra protection here is to permit application redefinition above␊ |
77 | * the default size.␊ |
78 | */␊ |
79 | #ifdef FD_SETSIZE␊ |
80 | #define␉__DARWIN_FD_SETSIZE␉FD_SETSIZE␊ |
81 | #else /* !FD_SETSIZE */␊ |
82 | #define␉__DARWIN_FD_SETSIZE␉1024␊ |
83 | #endif /* FD_SETSIZE */␊ |
84 | #define␉__DARWIN_NBBY␉␉8␉␉␉␉/* bits in a byte */␊ |
85 | #define __DARWIN_NFDBITS␉(sizeof(__int32_t) * __DARWIN_NBBY) /* bits per mask */␊ |
86 | #define␉__DARWIN_howmany(x, y)␉((((x) % (y)) == 0) ? ((x) / (y)) : (((x) / (y)) + 1)) /* # y's == x bits? */␊ |
87 | ␊ |
88 | __BEGIN_DECLS␊ |
89 | typedef␉struct fd_set {␊ |
90 | ␉__int32_t␉fds_bits[__DARWIN_howmany(__DARWIN_FD_SETSIZE, __DARWIN_NFDBITS)];␊ |
91 | } fd_set;␊ |
92 | __END_DECLS␊ |
93 | ␊ |
94 | /* This inline avoids argument side-effect issues with FD_ISSET() */␊ |
95 | static __inline int␊ |
96 | __darwin_fd_isset(int _n, const struct fd_set *_p)␊ |
97 | {␊ |
98 | ␉return (_p->fds_bits[_n/__DARWIN_NFDBITS] & (1<<(_n % __DARWIN_NFDBITS)));␊ |
99 | }␊ |
100 | ␊ |
101 | #define␉__DARWIN_FD_SET(n, p)␉do { int __fd = (n); ((p)->fds_bits[__fd/__DARWIN_NFDBITS] |= (1<<(__fd % __DARWIN_NFDBITS))); } while(0)␊ |
102 | #define␉__DARWIN_FD_CLR(n, p)␉do { int __fd = (n); ((p)->fds_bits[__fd/__DARWIN_NFDBITS] &= ~(1<<(__fd % __DARWIN_NFDBITS))); } while(0)␊ |
103 | #define␉__DARWIN_FD_ISSET(n, p)␉__darwin_fd_isset((n), (p))␊ |
104 | ␊ |
105 | #if __GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 3␊ |
106 | /*␊ |
107 | * Use the built-in bzero function instead of the library version so that␊ |
108 | * we do not pollute the namespace or introduce prototype warnings.␊ |
109 | */␊ |
110 | #define␉__DARWIN_FD_ZERO(p)␉__builtin_bzero(p, sizeof(*(p)))␊ |
111 | #else␊ |
112 | #define␉__DARWIN_FD_ZERO(p)␉bzero(p, sizeof(*(p)))␊ |
113 | #endif␊ |
114 | ␊ |
115 | #define␉__DARWIN_FD_COPY(f, t)␉bcopy(f, t, sizeof(*(f)))␊ |
116 | #endif /* _FD_SET */␊ |
117 | #endif /* __need_fd_set */␊ |
118 | |