bsd/sys/_structs.h

   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 #ifdef KERNEL
 164 /* LP64 version of struct timespec.  time_t is a long and must grow when
 165  * we're dealing with a 64-bit process.
 166  * WARNING - keep in sync with struct timespec
 167  */
 168 #ifdef __need_struct_user_timespec
 169 #undef __need_struct_user_timespec
 170 #ifndef _STRUCT_USER_TIMESPEC
 171 #define _STRUCT_USER_TIMESPEC   struct user_timespec
 172 _STRUCT_USER_TIMESPEC
 173 {
 174         user_time_t     tv_sec;         /* seconds */
 175         __int64_t       tv_nsec __attribute((aligned(8)));      /* and nanoseconds */
 176 };
 177 #endif /* _STRUCT_USER_TIMESPEC */
 178 #endif /* __need_struct_user_timespec */
 179 #endif  /* KERNEL */
 180
 181 #ifdef __need_fd_set
 182 #undef __need_fd_set
 183 #ifndef _FD_SET
 184 #define _FD_SET
 185 /*
 186  * Select uses bit masks of file descriptors in longs.  These macros
 187  * manipulate such bit fields (the filesystem macros use chars).  The
 188  * extra protection here is to permit application redefinition above
 189  * the default size.
 190  */
 191 #ifdef FD_SETSIZE
 192 #define __DARWIN_FD_SETSIZE     FD_SETSIZE
 193 #else /* !FD_SETSIZE */
 194 #define __DARWIN_FD_SETSIZE     1024
 195 #endif /* FD_SETSIZE */
 196 #define __DARWIN_NBBY           8                               /* bits in a byte */
 197 #define __DARWIN_NFDBITS        (sizeof(__int32_t) * __DARWIN_NBBY) /* bits per mask */
 198 #define __DARWIN_howmany(x, y) (((x) + ((y) - 1)) / (y))        /* # y's == x bits? */
 199
 200 __BEGIN_DECLS
 201 typedef struct fd_set {
 202         __int32_t       fds_bits[__DARWIN_howmany(__DARWIN_FD_SETSIZE, __DARWIN_NFDBITS)];
 203 } fd_set;
 204 __END_DECLS
 205
 206 /* This inline avoids argument side-effect issues with FD_ISSET() */
 207 static __inline int
 208 __darwin_fd_isset(int _n, struct fd_set *_p)
 209 {
 210         return (_p->fds_bits[_n/__DARWIN_NFDBITS] & (1<<(_n % __DARWIN_NFDBITS)));
 211 }
 212
 213 #define __DARWIN_FD_SET(n, p)   do { int __fd = (n); ((p)->fds_bits[__fd/__DARWIN_NFDBITS] |= (1<<(__fd % __DARWIN_NFDBITS))); } while(0)
 214 #define __DARWIN_FD_CLR(n, p)   do { int __fd = (n); ((p)->fds_bits[__fd/__DARWIN_NFDBITS] &= ~(1<<(__fd % __DARWIN_NFDBITS))); } while(0)
 215 #define __DARWIN_FD_ISSET(n, p) __darwin_fd_isset((n), (p))
 216
 217 #if __GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 3
 218 /*
 219  * Use the built-in bzero function instead of the library version so that
 220  * we do not pollute the namespace or introduce prototype warnings.
 221  */
 222 #define __DARWIN_FD_ZERO(p)     __builtin_bzero(p, sizeof(*(p)))
 223 #else
 224 #define __DARWIN_FD_ZERO(p)     bzero(p, sizeof(*(p)))
 225 #endif
 226
 227 #define __DARWIN_FD_COPY(f, t)  bcopy(f, t, sizeof(*(f)))
 228 #endif /* _FD_SET */
 229 #endif /* __need_fd_set */
 230
 231 #ifdef __need_stack_t
 232 #undef __need_stack_t
 233 #ifndef _STACK_T
 234 #define _STACK_T
 235 typedef _STRUCT_SIGALTSTACK     stack_t; /* [???] signal stack */
 236 #endif /* _STACK_T */
 237 #endif /* __need_stack_t */
 238
 239 #ifdef __need_ucontext_t
 240 #undef __need_ucontext_t
 241 /* user context */
 242 #ifndef _UCONTEXT_T
 243 #define _UCONTEXT_T
 244 typedef _STRUCT_UCONTEXT        ucontext_t;     /* [???] user context */
 245 #endif /* _UCONTEXT_T */
 246 #endif /* __need_ucontext_t */
 247
 248 #ifdef __need_ucontext64_t
 249 #undef __need_ucontext64_t
 250 #ifndef _UCONTEXT64_T
 251 #define _UCONTEXT64_T
 252 typedef _STRUCT_UCONTEXT64      ucontext64_t;   /* [???] user context */
 253 #endif /* _UCONTEXT64_T */
 254 #endif /* __need_ucontext64_t */