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_ucontext_t
33 : #ifndef __need_struct_ucontext
34 : #define __need_struct_ucontext
35 : #endif /* __need_struct_ucontext */
36 : #endif /* __need_ucontext_t */
37 :
38 : #ifdef __need_ucontext64_t
39 : #ifndef __need_struct_ucontext64
40 : #define __need_struct_ucontext64
41 : #endif /* __need_struct_ucontext64 */
42 : #endif /* __need_ucontext64_t */
43 :
44 : #ifdef __need_struct_ucontext
45 : #ifndef __need_struct_mcontext
46 : #define __need_struct_mcontext
47 : #endif /* __need_struct_mcontext */
48 : #endif /* __need_struct_ucontext */
49 :
50 : #ifdef __need_struct_ucontext64
51 : #ifndef __need_struct_mcontext64
52 : #define __need_struct_mcontext64
53 : #endif /* __need_struct_mcontext64 */
54 : #endif /* __need_struct_ucontext64 */
55 :
56 : #if defined(__need_struct_mcontext) || defined(__need_struct_mcontext64)
57 : #include <machine/_structs.h>
58 : #endif /* __need_struct_mcontext || __need_struct_mcontext64 */
59 :
60 : #if defined(__need_stack_t) || defined(__need_struct_ucontext) || defined(__need_struct_ucontext64)
61 : #ifndef __need_struct_sigaltstack
62 : #define __need_struct_sigaltstack
63 : #endif /* __need_struct_sigaltstack */
64 : #endif /* __need_stack_t || __need_struct_ucontext || __need_struct_ucontext64 */
65 :
66 : #ifdef __need_struct_sigaltstack
67 : #undef __need_struct_sigaltstack
68 : /* Structure used in sigaltstack call. */
69 : #ifndef _STRUCT_SIGALTSTACK
70 : #if __DARWIN_UNIX03
71 : #define _STRUCT_SIGALTSTACK struct __darwin_sigaltstack
72 : #else /* !__DARWIN_UNIX03 */
73 : #define _STRUCT_SIGALTSTACK struct sigaltstack
74 : #endif /* __DARWIN_UNIX03 */
75 : _STRUCT_SIGALTSTACK
76 : {
77 : void *ss_sp; /* signal stack base */
78 : __darwin_size_t ss_size; /* signal stack length */
79 : int ss_flags; /* SA_DISABLE and/or SA_ONSTACK */
80 : };
81 : #endif /* _STRUCT_SIGALTSTACK */
82 : #endif /* __need_struct_sigaltstack */
83 :
84 : #ifdef __need_struct_timespec
85 : #undef __need_struct_timespec
86 : #ifndef _STRUCT_TIMESPEC
87 : #define _STRUCT_TIMESPEC struct timespec
88 : _STRUCT_TIMESPEC
89 : {
90 : __darwin_time_t tv_sec;
91 : long tv_nsec;
92 : };
93 : #endif /* _STRUCT_TIMESPEC */
94 : #endif /* __need_struct_timespec */
95 :
96 : #ifdef __need_struct_timeval
97 : #undef __need_struct_timeval
98 : #ifndef _STRUCT_TIMEVAL
99 : #define _STRUCT_TIMEVAL struct timeval
100 : _STRUCT_TIMEVAL
101 : {
102 : __darwin_time_t tv_sec; /* seconds */
103 : __darwin_suseconds_t tv_usec; /* and microseconds */
104 : };
105 : #endif /* _STRUCT_TIMEVAL */
106 : #endif /* __need_struct_timeval */
107 :
108 : #ifdef __need_struct_timeval32
109 : #undef __need_struct_timeval32
110 : #ifndef _STRUCT_TIMEVAL32
111 : #define _STRUCT_TIMEVAL32 struct timeval32
112 : _STRUCT_TIMEVAL32
113 : {
114 : __int32_t tv_sec; /* seconds */
115 : __int32_t tv_usec; /* and microseconds */
116 : };
117 : #endif /* _STRUCT_TIMEVAL32 */
118 : #endif /* __need_struct_timeval32 */
119 :
120 : #ifdef __need_struct_ucontext
121 : #undef __need_struct_ucontext
122 : #ifndef _STRUCT_UCONTEXT
123 : #if __DARWIN_UNIX03
124 : #define _STRUCT_UCONTEXT struct __darwin_ucontext
125 : #else /* !__DARWIN_UNIX03 */
126 : #define _STRUCT_UCONTEXT struct ucontext
127 : #endif /* __DARWIN_UNIX03 */
128 : _STRUCT_UCONTEXT
129 : {
130 : int uc_onstack;
131 : __darwin_sigset_t uc_sigmask; /* signal mask used by this context */
132 : _STRUCT_SIGALTSTACK uc_stack; /* stack used by this context */
133 : _STRUCT_UCONTEXT *uc_link; /* pointer to resuming context */
134 : __darwin_size_t uc_mcsize; /* size of the machine context passed in */
135 : _STRUCT_MCONTEXT *uc_mcontext; /* pointer to machine specific context */
136 : #ifdef _XOPEN_SOURCE
137 : _STRUCT_MCONTEXT __mcontext_data;
138 : #endif /* _XOPEN_SOURCE */
139 : };
140 : #endif /* _STRUCT_UCONTEXT */
141 : #endif /* __need_struct_ucontext */
142 :
143 : #ifdef __need_struct_ucontext64
144 : #undef __need_struct_ucontext64
145 : #ifndef _STRUCT_UCONTEXT64
146 : #if __DARWIN_UNIX03
147 : #define _STRUCT_UCONTEXT64 struct __darwin_ucontext64
148 : #else /* !__DARWIN_UNIX03 */
149 : #define _STRUCT_UCONTEXT64 struct ucontext64
150 : #endif /* __DARWIN_UNIX03 */
151 : _STRUCT_UCONTEXT64
152 : {
153 : int uc_onstack;
154 : __darwin_sigset_t uc_sigmask; /* signal mask used by this context */
155 : _STRUCT_SIGALTSTACK uc_stack; /* stack used by this context */
156 : _STRUCT_UCONTEXT64 *uc_link; /* pointer to resuming context */
157 : __darwin_size_t uc_mcsize; /* size of the machine context passed in */
158 : _STRUCT_MCONTEXT64 *uc_mcontext64; /* pointer to machine specific context */
159 : };
160 : #endif /* _STRUCT_UCONTEXT64 */
161 : #endif /* __need_struct_ucontext64 */
162 :
163 :
164 : #ifdef __need_fd_set
165 : #undef __need_fd_set
166 : #ifndef _FD_SET
167 : #define _FD_SET
168 : /*
169 : * Select uses bit masks of file descriptors in longs. These macros
170 : * manipulate such bit fields (the filesystem macros use chars). The
171 : * extra protection here is to permit application redefinition above
172 : * the default size.
173 : */
174 : #ifdef FD_SETSIZE
175 : #define __DARWIN_FD_SETSIZE FD_SETSIZE
176 : #else /* !FD_SETSIZE */
177 : #define __DARWIN_FD_SETSIZE 1024
178 : #endif /* FD_SETSIZE */
179 : #define __DARWIN_NBBY 8 /* bits in a byte */
180 : #define __DARWIN_NFDBITS (sizeof(__int32_t) * __DARWIN_NBBY) /* bits per mask */
181 : #define __DARWIN_howmany(x, y) ((((x) % (y)) == 0) ? ((x) / (y)) : (((x) / (y)) + 1)) /* # y's == x bits? */
182 :
183 : __BEGIN_DECLS
184 : typedef struct fd_set {
185 : __int32_t fds_bits[__DARWIN_howmany(__DARWIN_FD_SETSIZE, __DARWIN_NFDBITS)];
186 : } fd_set;
187 : __END_DECLS
188 :
189 : /* This inline avoids argument side-effect issues with FD_ISSET() */
190 : static __inline int
191 168 : __darwin_fd_isset(int _n, const struct fd_set *_p)
192 : {
193 168 : return (_p->fds_bits[_n/__DARWIN_NFDBITS] & (1<<(_n % __DARWIN_NFDBITS)));
194 : }
195 :
196 : #define __DARWIN_FD_SET(n, p) do { int __fd = (n); ((p)->fds_bits[__fd/__DARWIN_NFDBITS] |= (1<<(__fd % __DARWIN_NFDBITS))); } while(0)
197 : #define __DARWIN_FD_CLR(n, p) do { int __fd = (n); ((p)->fds_bits[__fd/__DARWIN_NFDBITS] &= ~(1<<(__fd % __DARWIN_NFDBITS))); } while(0)
198 : #define __DARWIN_FD_ISSET(n, p) __darwin_fd_isset((n), (p))
199 :
200 : #if __GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 3
201 : /*
202 : * Use the built-in bzero function instead of the library version so that
203 : * we do not pollute the namespace or introduce prototype warnings.
204 : */
205 : #define __DARWIN_FD_ZERO(p) __builtin_bzero(p, sizeof(*(p)))
206 : #else
207 : #define __DARWIN_FD_ZERO(p) bzero(p, sizeof(*(p)))
208 : #endif
209 :
210 : #define __DARWIN_FD_COPY(f, t) bcopy(f, t, sizeof(*(f)))
211 : #endif /* _FD_SET */
212 : #endif /* __need_fd_set */
213 :
214 : #ifdef __need_stack_t
215 : #undef __need_stack_t
216 : #ifndef _STACK_T
217 : #define _STACK_T
218 : typedef _STRUCT_SIGALTSTACK stack_t; /* [???] signal stack */
219 : #endif /* _STACK_T */
220 : #endif /* __need_stack_t */
221 :
222 : #ifdef __need_ucontext_t
223 : #undef __need_ucontext_t
224 : /* user context */
225 : #ifndef _UCONTEXT_T
226 : #define _UCONTEXT_T
227 : typedef _STRUCT_UCONTEXT ucontext_t; /* [???] user context */
228 : #endif /* _UCONTEXT_T */
229 : #endif /* __need_ucontext_t */
230 :
231 : #ifdef __need_ucontext64_t
232 : #undef __need_ucontext64_t
233 : #ifndef _UCONTEXT64_T
234 : #define _UCONTEXT64_T
235 : typedef _STRUCT_UCONTEXT64 ucontext64_t; /* [???] user context */
236 : #endif /* _UCONTEXT64_T */
237 : #endif /* __need_ucontext64_t */
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