usr/src/uts/common/sys/types.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  22 /*        All Rights Reserved   */
  23
  24
  25 /*
  26  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29
  30 #ifndef _SYS_TYPES_H
  31 #define _SYS_TYPES_H
  32
  33 #include <sys/feature_tests.h>
  34 #include <sys/isa_defs.h>
  35
  36 /*
  37  * Machine dependent definitions moved to <sys/machtypes.h>.
  38  */
  39 #include <sys/machtypes.h>
  40
  41 /*
  42  * Include fixed width type declarations proposed by the ISO/JTC1/SC22/WG14 C
  43  * committee's working draft for the revision of the current ISO C standard,
  44  * ISO/IEC 9899:1990 Programming language - C.  These are not currently
  45  * required by any standard but constitute a useful, general purpose set
  46  * of type definitions which is namespace clean with respect to all standards.
  47  */
  48 #ifdef  _KERNEL
  49 #include <sys/inttypes.h>
  50 #else   /* _KERNEL */
  51 #include <sys/int_types.h>
  52 #endif  /* _KERNEL */
  53
  54 #if defined(_KERNEL) || defined(_SYSCALL32)
  55 #include <sys/types32.h>
  56 #endif
  57
  58 #ifdef  __cplusplus
  59 extern "C" {
  60 #endif
  61
  62 /*
  63  * Strictly conforming ANSI C environments prior to the 1999
  64  * revision of the C Standard (ISO/IEC 9899:1999) do not have
  65  * the long long data type.
  66  */
  67 #if defined(_LONGLONG_TYPE)
  68 typedef long long               longlong_t;
  69 typedef unsigned long long      u_longlong_t;
  70 #else
  71 /* used to reserve space and generate alignment */
  72 typedef union {
  73         double  _d;
  74         int32_t _l[2];
  75 } longlong_t;
  76 typedef union {
  77         double          _d;
  78         uint32_t        _l[2];
  79 } u_longlong_t;
  80 #endif  /* defined(_LONGLONG_TYPE) */
  81
  82 /*
  83  * These types (t_{u}scalar_t) exist because the XTI/TPI/DLPI standards had
  84  * to use them instead of int32_t and uint32_t because DEC had
  85  * shipped 64-bit wide.
  86  */
  87 #if defined(_LP64) || defined(_I32LPx)
  88 typedef int32_t         t_scalar_t;
  89 typedef uint32_t        t_uscalar_t;
  90 #else
  91 typedef long            t_scalar_t;     /* historical versions */
  92 typedef unsigned long   t_uscalar_t;
  93 #endif  /* defined(_LP64) || defined(_I32LPx) */
  94
  95 /*
  96  * POSIX Extensions
  97  */
  98 typedef unsigned char   uchar_t;
  99 typedef unsigned short  ushort_t;
 100 typedef unsigned int    uint_t;
 101 typedef unsigned long   ulong_t;
 102
 103 typedef char            *caddr_t;       /* ?<core address> type */
 104 typedef long            daddr_t;        /* <disk address> type */
 105 typedef short           cnt_t;          /* ?<count> type */
 106
 107 #if !defined(_PTRDIFF_T) || __cplusplus >= 199711L
 108 #define _PTRDIFF_T
 109 #if defined(_LP64) || defined(_I32LPx)
 110 typedef long    ptrdiff_t;              /* pointer difference */
 111 #else
 112 typedef int     ptrdiff_t;              /* (historical version) */
 113 #endif
 114 #endif
 115
 116 /*
 117  * VM-related types
 118  */
 119 typedef ulong_t         pfn_t;          /* page frame number */
 120 typedef ulong_t         pgcnt_t;        /* number of pages */
 121 typedef long            spgcnt_t;       /* signed number of pages */
 122
 123 typedef uchar_t         use_t;          /* use count for swap.  */
 124 typedef short           sysid_t;
 125 typedef short           index_t;
 126 typedef void            *timeout_id_t;  /* opaque handle from timeout(9F) */
 127 typedef void            *bufcall_id_t;  /* opaque handle from bufcall(9F) */
 128
 129 /*
 130  * The size of off_t and related types depends on the setting of
 131  * _FILE_OFFSET_BITS.  (Note that other system headers define other types
 132  * related to those defined here.)
 133  *
 134  * If _LARGEFILE64_SOURCE is defined, variants of these types that are
 135  * explicitly 64 bits wide become available.
 136  */
 137 #ifndef _OFF_T
 138 #define _OFF_T
 139
 140 #if defined(_LP64) || _FILE_OFFSET_BITS == 32
 141 typedef long            off_t;          /* offsets within files */
 142 #elif _FILE_OFFSET_BITS == 64
 143 typedef longlong_t      off_t;          /* offsets within files */
 144 #endif
 145
 146 #if defined(_LARGEFILE64_SOURCE)
 147 #ifdef _LP64
 148 typedef off_t           off64_t;        /* offsets within files */
 149 #else
 150 typedef longlong_t      off64_t;        /* offsets within files */
 151 #endif
 152 #endif  /* _LARGEFILE64_SOURCE */
 153
 154 #endif /* _OFF_T */
 155
 156 #if defined(_LP64) || _FILE_OFFSET_BITS == 32
 157 typedef ulong_t         ino_t;          /* expanded inode type  */
 158 typedef long            blkcnt_t;       /* count of file blocks */
 159 typedef ulong_t         fsblkcnt_t;     /* count of file system blocks */
 160 typedef ulong_t         fsfilcnt_t;     /* count of files */
 161 #elif _FILE_OFFSET_BITS == 64
 162 typedef u_longlong_t    ino_t;          /* expanded inode type  */
 163 typedef longlong_t      blkcnt_t;       /* count of file blocks */
 164 typedef u_longlong_t    fsblkcnt_t;     /* count of file system blocks */
 165 typedef u_longlong_t    fsfilcnt_t;     /* count of files */
 166 #endif
 167
 168 #if defined(_LARGEFILE64_SOURCE)
 169 #ifdef _LP64
 170 typedef ino_t           ino64_t;        /* expanded inode type */
 171 typedef blkcnt_t        blkcnt64_t;     /* count of file blocks */
 172 typedef fsblkcnt_t      fsblkcnt64_t;   /* count of file system blocks */
 173 typedef fsfilcnt_t      fsfilcnt64_t;   /* count of files */
 174 #else
 175 typedef u_longlong_t    ino64_t;        /* expanded inode type  */
 176 typedef longlong_t      blkcnt64_t;     /* count of file blocks */
 177 typedef u_longlong_t    fsblkcnt64_t;   /* count of file system blocks */
 178 typedef u_longlong_t    fsfilcnt64_t;   /* count of files */
 179 #endif
 180 #endif  /* _LARGEFILE64_SOURCE */
 181
 182 #ifdef _LP64
 183 typedef int             blksize_t;      /* used for block sizes */
 184 #else
 185 typedef long            blksize_t;      /* used for block sizes */
 186 #endif
 187
 188 #if defined(__XOPEN_OR_POSIX)
 189 typedef enum { _B_FALSE, _B_TRUE } boolean_t;
 190 #else
 191 typedef enum { B_FALSE, B_TRUE } boolean_t;
 192 #ifdef _KERNEL
 193 #define VALID_BOOLEAN(x)        (((x) == B_FALSE) || ((x) == B_TRUE))
 194 #define VOID2BOOLEAN(x)         (((uintptr_t)(x) == 0) ? B_FALSE : B_TRUE)
 195 #endif /* _KERNEL */
 196 #endif /* defined(__XOPEN_OR_POSIX) */
 197
 198 #ifdef _KERNEL
 199 #define BOOLEAN2VOID(x)         ((x) ? 1 : 0)
 200 #endif /* _KERNEL */
 201
 202 /*
 203  * The {u,}pad64_t types can be used in structures such that those structures
 204  * may be accessed by code produced by compilation environments which don't
 205  * support a 64 bit integral datatype.  The intention is not to allow
 206  * use of these fields in such environments, but to maintain the alignment
 207  * and offsets of the structure.
 208  *
 209  * Similar comments for {u,}pad128_t.
 210  *
 211  * Note that these types do NOT generate any stronger alignment constraints
 212  * than those available in the underlying ABI.  See <sys/isa_defs.h>
 213  */
 214 #if defined(_INT64_TYPE)
 215 typedef int64_t         pad64_t;
 216 typedef uint64_t        upad64_t;
 217 #else
 218 typedef union {
 219         double   _d;
 220         int32_t  _l[2];
 221 } pad64_t;
 222
 223 typedef union {
 224         double   _d;
 225         uint32_t _l[2];
 226 } upad64_t;
 227 #endif
 228
 229 typedef union {
 230         long double     _q;
 231         int32_t         _l[4];
 232 } pad128_t;
 233
 234 typedef union {
 235         long double     _q;
 236         uint32_t        _l[4];
 237 } upad128_t;
 238
 239 typedef longlong_t      offset_t;
 240 typedef u_longlong_t    u_offset_t;
 241 typedef u_longlong_t    len_t;
 242 typedef u_longlong_t    diskaddr_t;
 243 #if (defined(_KERNEL) || defined(_KMEMUSER) || defined(_BOOT))
 244 typedef uint64_t        paddr_t;
 245 #endif
 246
 247 /*
 248  * Definitions remaining from previous partial support for 64-bit file
 249  * offsets.  This partial support for devices greater than 2gb requires
 250  * compiler support for long long.
 251  */
 252 #ifdef _LONG_LONG_LTOH
 253 typedef union {
 254         offset_t        _f;     /* Full 64 bit offset value */
 255         struct {
 256                 int32_t _l;     /* lower 32 bits of offset value */
 257                 int32_t _u;     /* upper 32 bits of offset value */
 258         } _p;
 259 } lloff_t;
 260 #endif
 261
 262 #ifdef _LONG_LONG_HTOL
 263 typedef union {
 264         offset_t        _f;     /* Full 64 bit offset value */
 265         struct {
 266                 int32_t _u;     /* upper 32 bits of offset value */
 267                 int32_t _l;     /* lower 32 bits of offset value */
 268         } _p;
 269 } lloff_t;
 270 #endif
 271
 272 #ifdef _LONG_LONG_LTOH
 273 typedef union {
 274         longlong_t      _f;     /* Full 64 bit disk address value */
 275         struct {
 276                 int32_t _l;     /* lower 32 bits of disk address value */
 277                 int32_t _u;     /* upper 32 bits of disk address value */
 278         } _p;
 279 } lldaddr_t;
 280 #endif
 281
 282 #ifdef _LONG_LONG_HTOL
 283 typedef union {
 284         longlong_t      _f;     /* Full 64 bit disk address value */
 285         struct {
 286                 int32_t _u;     /* upper 32 bits of disk address value */
 287                 int32_t _l;     /* lower 32 bits of disk address value */
 288         } _p;
 289 } lldaddr_t;
 290 #endif
 291
 292 typedef uint_t k_fltset_t;      /* kernel fault set type */
 293
 294 /*
 295  * The following type is for various kinds of identifiers.  The
 296  * actual type must be the same for all since some system calls
 297  * (such as sigsend) take arguments that may be any of these
 298  * types.  The enumeration type idtype_t defined in sys/procset.h
 299  * is used to indicate what type of id is being specified --
 300  * a process id, process group id, session id, scheduling class id,
 301  * user id, group id, project id, task id or zone id.
 302  */
 303 #if defined(_LP64) || defined(_I32LPx)
 304 typedef int             id_t;
 305 #else
 306 typedef long            id_t;           /* (historical version) */
 307 #endif
 308
 309 typedef id_t            lgrp_id_t;      /* lgroup ID */
 310
 311 /*
 312  * Type useconds_t is an unsigned integral type capable of storing
 313  * values at least in the range of zero to 1,000,000.
 314  */
 315 typedef uint_t          useconds_t;     /* Time, in microseconds */
 316
 317 #ifndef _SUSECONDS_T
 318 #define _SUSECONDS_T
 319 typedef long    suseconds_t;    /* signed # of microseconds */
 320 #endif  /* _SUSECONDS_T */
 321
 322 /*
 323  * Typedefs for dev_t components.
 324  */
 325 #if defined(_LP64) || defined(_I32LPx)
 326 typedef uint_t  major_t;        /* major part of device number */
 327 typedef uint_t  minor_t;        /* minor part of device number */
 328 #else
 329 typedef ulong_t major_t;        /* (historical version) */
 330 typedef ulong_t minor_t;        /* (historical version) */
 331 #endif
 332
 333 /*
 334  * The data type of a thread priority.
 335  */
 336 typedef short   pri_t;
 337
 338 /*
 339  * The data type for a CPU flags field.  (Can be extended to larger unsigned
 340  * types, if needed, limited by ability to update atomically.)
 341  */
 342 typedef ushort_t        cpu_flag_t;
 343
 344 /*
 345  * For compatibility reasons the following typedefs (prefixed o_)
 346  * can't grow regardless of the EFT definition. Although,
 347  * applications should not explicitly use these typedefs
 348  * they may be included via a system header definition.
 349  * WARNING: These typedefs may be removed in a future
 350  * release.
 351  *              ex. the definitions in s5inode.h (now obsoleted)
 352  *                      remained small to preserve compatibility
 353  *                      in the S5 file system type.
 354  */
 355 typedef ushort_t o_mode_t;              /* old file attribute type */
 356 typedef short   o_dev_t;                /* old device type      */
 357 typedef ushort_t o_uid_t;               /* old UID type         */
 358 typedef o_uid_t o_gid_t;                /* old GID type         */
 359 typedef short   o_nlink_t;              /* old file link type   */
 360 typedef short   o_pid_t;                /* old process id type  */
 361 typedef ushort_t o_ino_t;               /* old inode type       */
 362
 363
 364 /*
 365  * POSIX and XOPEN Declarations
 366  */
 367 typedef int     key_t;                  /* IPC key type         */
 368 #if defined(_LP64) || defined(_I32LPx)
 369 typedef uint_t  mode_t;                 /* file attribute type  */
 370 #else
 371 typedef ulong_t mode_t;                 /* (historical version) */
 372 #endif
 373
 374 #ifndef _UID_T
 375 #define _UID_T
 376 typedef unsigned int uid_t;             /* UID type             */
 377 #endif  /* _UID_T */
 378
 379 typedef uid_t   gid_t;                  /* GID type             */
 380
 381 typedef id_t    taskid_t;
 382 typedef id_t    projid_t;
 383 typedef id_t    poolid_t;
 384 typedef id_t    zoneid_t;
 385 typedef id_t    ctid_t;
 386
 387 /*
 388  * POSIX definitions are same as defined in thread.h and synch.h.
 389  * Any changes made to here should be reflected in corresponding
 390  * files as described in comments.
 391  */
 392 typedef uint_t  pthread_t;      /* = thread_t in thread.h */
 393 typedef uint_t  pthread_key_t;  /* = thread_key_t in thread.h */
 394
 395 /* "Magic numbers" tagging synchronization object types */
 396 #define _MUTEX_MAGIC    0x4d58          /* "MX" */
 397 #define _SEMA_MAGIC     0x534d          /* "SM" */
 398 #define _COND_MAGIC     0x4356          /* "CV" */
 399 #define _RWL_MAGIC      0x5257          /* "RW" */
 400
 401 typedef struct _pthread_mutex {         /* = mutex_t in synch.h */
 402         struct {
 403                 uint16_t        __pthread_mutex_flag1;
 404                 uint8_t         __pthread_mutex_flag2;
 405                 uint8_t         __pthread_mutex_ceiling;
 406                 uint16_t        __pthread_mutex_type;
 407                 uint16_t        __pthread_mutex_magic;
 408         } __pthread_mutex_flags;
 409         union {
 410                 struct {
 411                         uint8_t __pthread_mutex_pad[8];
 412                 } __pthread_mutex_lock64;
 413                 struct {
 414                         uint32_t __pthread_ownerpid;
 415                         uint32_t __pthread_lockword;
 416                 } __pthread_mutex_lock32;
 417                 upad64_t __pthread_mutex_owner64;
 418         } __pthread_mutex_lock;
 419         upad64_t __pthread_mutex_data;
 420 } pthread_mutex_t;
 421
 422 typedef struct _pthread_cond {          /* = cond_t in synch.h */
 423         struct {
 424                 uint8_t         __pthread_cond_flag[4];
 425                 uint16_t        __pthread_cond_type;
 426                 uint16_t        __pthread_cond_magic;
 427         } __pthread_cond_flags;
 428         upad64_t __pthread_cond_data;
 429 } pthread_cond_t;
 430
 431 /*
 432  * UNIX 98 Extension
 433  */
 434 typedef struct _pthread_rwlock {        /* = rwlock_t in synch.h */
 435         int32_t         __pthread_rwlock_readers;
 436         uint16_t        __pthread_rwlock_type;
 437         uint16_t        __pthread_rwlock_magic;
 438         pthread_mutex_t __pthread_rwlock_mutex;
 439         pthread_cond_t  __pthread_rwlock_readercv;
 440         pthread_cond_t  __pthread_rwlock_writercv;
 441 } pthread_rwlock_t;
 442
 443 /*
 444  * SUSV3
 445  */
 446 typedef struct {
 447         uint32_t        __pthread_barrier_count;
 448         uint32_t        __pthread_barrier_current;
 449         upad64_t        __pthread_barrier_cycle;
 450         upad64_t        __pthread_barrier_reserved;
 451         pthread_mutex_t __pthread_barrier_lock;
 452         pthread_cond_t  __pthread_barrier_cond;
 453 } pthread_barrier_t;
 454
 455 typedef pthread_mutex_t pthread_spinlock_t;
 456
 457 /*
 458  * attributes for threads, dynamically allocated by library
 459  */
 460 typedef struct _pthread_attr {
 461         void    *__pthread_attrp;
 462 } pthread_attr_t;
 463
 464 /*
 465  * attributes for mutex, dynamically allocated by library
 466  */
 467 typedef struct _pthread_mutexattr {
 468         void    *__pthread_mutexattrp;
 469 } pthread_mutexattr_t;
 470
 471 /*
 472  * attributes for cond, dynamically allocated by library
 473  */
 474 typedef struct _pthread_condattr {
 475         void    *__pthread_condattrp;
 476 } pthread_condattr_t;
 477
 478 /*
 479  * pthread_once
 480  */
 481 typedef struct _once {
 482         upad64_t        __pthread_once_pad[4];
 483 } pthread_once_t;
 484
 485 /*
 486  * UNIX 98 Extensions
 487  * attributes for rwlock, dynamically allocated by library
 488  */
 489 typedef struct _pthread_rwlockattr {
 490         void    *__pthread_rwlockattrp;
 491 } pthread_rwlockattr_t;
 492
 493 /*
 494  * SUSV3
 495  * attributes for pthread_barrier_t, dynamically allocated by library
 496  */
 497 typedef struct {
 498         void    *__pthread_barrierattrp;
 499 } pthread_barrierattr_t;
 500
 501 typedef ulong_t dev_t;                  /* expanded device type */
 502
 503 #if defined(_LP64) || defined(_I32LPx)
 504 typedef uint_t nlink_t;                 /* file link type       */
 505 typedef int     pid_t;                  /* process id type      */
 506 #else
 507 typedef ulong_t nlink_t;                /* (historical version) */
 508 typedef long    pid_t;                  /* (historical version) */
 509 #endif
 510
 511 #if !defined(_SIZE_T) || __cplusplus >= 199711L
 512 #define _SIZE_T
 513 #if defined(_LP64) || defined(_I32LPx)
 514 typedef ulong_t size_t;         /* size of something in bytes */
 515 #else
 516 typedef uint_t  size_t;         /* (historical version) */
 517 #endif
 518 #endif  /* _SIZE_T */
 519
 520 #ifndef _SSIZE_T
 521 #define _SSIZE_T
 522 #if defined(_LP64) || defined(_I32LPx)
 523 typedef long    ssize_t;        /* size of something in bytes or -1 */
 524 #else
 525 typedef int     ssize_t;        /* (historical version) */
 526 #endif
 527 #endif  /* _SSIZE_T */
 528
 529 #if !defined(_TIME_T) || __cplusplus >= 199711L
 530 #define _TIME_T
 531 typedef long            time_t; /* time of day in seconds */
 532 #endif  /* _TIME_T */
 533
 534 #if !defined(_CLOCK_T) || __cplusplus >= 199711L
 535 #define _CLOCK_T
 536 typedef long            clock_t; /* relative time in a specified resolution */
 537 #endif  /* ifndef _CLOCK_T */
 538
 539 #ifndef _CLOCKID_T
 540 #define _CLOCKID_T
 541 typedef int     clockid_t;      /* clock identifier type */
 542 #endif  /* ifndef _CLOCKID_T */
 543
 544 #ifndef _TIMER_T
 545 #define _TIMER_T
 546 typedef int     timer_t;        /* timer identifier type */
 547 #endif  /* ifndef _TIMER_T */
 548
 549 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 550
 551 /* BEGIN CSTYLED */
 552 typedef unsigned char   unchar;
 553 typedef unsigned short  ushort;
 554 typedef unsigned int    uint;
 555 typedef unsigned long   ulong;
 556 /* END CSTYLED */
 557
 558 #if defined(_KERNEL)
 559
 560 #define SHRT_MIN        (-32768)        /* min value of a "short int" */
 561 #define SHRT_MAX        32767           /* max value of a "short int" */
 562 #define USHRT_MAX       65535           /* max of "unsigned short int" */
 563 #define INT_MIN         (-2147483647-1) /* min value of an "int" */
 564 #define INT_MAX         2147483647      /* max value of an "int" */
 565 #define UINT_MAX        4294967295U     /* max value of an "unsigned int" */
 566 #if defined(_LP64)
 567 #define LONG_MIN        (-9223372036854775807L-1L)
 568                                         /* min value of a "long int" */
 569 #define LONG_MAX        9223372036854775807L
 570                                         /* max value of a "long int" */
 571 #define ULONG_MAX       18446744073709551615UL
 572                                         /* max of "unsigned long int" */
 573 #else /* _ILP32 */
 574 #define LONG_MIN        (-2147483647L-1L)
 575                                         /* min value of a "long int" */
 576 #define LONG_MAX        2147483647L     /* max value of a "long int" */
 577 #define ULONG_MAX       4294967295UL    /* max of "unsigned long int" */
 578 #endif
 579
 580 #define LLONG_MIN       (-9223372036854775807LL-1LL)
 581                                         /* min of "long long int" */
 582 #define LLONG_MAX       9223372036854775807LL
 583                                         /* max of "long long int" */
 584 #define ULLONG_MAX      18446744073709551615ULL
 585                                         /* max of "unsigned long long int" */
 586
 587 #endif  /* defined(_KERNEL) */
 588
 589 #define P_MYPID ((pid_t)0)
 590
 591 /*
 592  * The following is the value of type id_t to use to indicate the
 593  * caller's current id.  See procset.h for the type idtype_t
 594  * which defines which kind of id is being specified.
 595  */
 596 #define P_MYID  (-1)
 597 #define NOPID (pid_t)(-1)
 598
 599 #ifndef NODEV
 600 #define NODEV   (dev_t)(-1l)
 601 #ifdef _SYSCALL32
 602 #define NODEV32 (dev32_t)(-1)
 603 #endif  /* _SYSCALL32 */
 604 #endif  /* NODEV */
 605
 606 /*
 607  * The following value of type pfn_t is used to indicate
 608  * invalid page frame number.
 609  */
 610 #define PFN_INVALID     ((pfn_t)-1)
 611 #define PFN_SUSPENDED   ((pfn_t)-2)
 612
 613 /* BEGIN CSTYLED */
 614 typedef unsigned char   u_char;
 615 typedef unsigned short  u_short;
 616 typedef unsigned int    u_int;
 617 typedef unsigned long   u_long;
 618 typedef struct _quad { int val[2]; } quad_t;    /* used by UFS */
 619 typedef quad_t          quad;                   /* used by UFS */
 620 /* END CSTYLED */
 621
 622 /*
 623  * Nested include for BSD/sockets source compatibility.
 624  * (The select macros used to be defined here).
 625  */
 626 #include <sys/select.h>
 627
 628 #endif  /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 629
 630 /*
 631  * _VOID was defined to be either void or char but this is not
 632  * required because previous SunOS compilers have accepted the void
 633  * type. However, because many system header and source files use the
 634  * void keyword, the volatile keyword, and ANSI C function prototypes,
 635  * non-ANSI compilers cannot compile the system anyway. The _VOID macro
 636  * should therefore not be used and remains for source compatibility
 637  * only.
 638  */
 639 /* CSTYLED */
 640 #define _VOID   void
 641
 642 #ifdef  __cplusplus
 643 }
 644 #endif
 645
 646 #endif  /* _SYS_TYPES_H */