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Annotation of src/sys/sys/types.h, Revision 1.29

1.29    ! jtc         1: /*     $NetBSD: types.h,v 1.28 1996/07/18 20:01:43 explorer Exp $      */
1.16      cgd         2:
1.12      cgd         3: /*-
1.14      cgd         4:  * Copyright (c) 1982, 1986, 1991, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
1.12      cgd         6:  * (c) UNIX System Laboratories, Inc.
                      7:  * All or some portions of this file are derived from material licensed
                      8:  * to the University of California by American Telephone and Telegraph
                      9:  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
                     10:  * the permission of UNIX System Laboratories, Inc.
                     11:  *
                     12:  * Redistribution and use in source and binary forms, with or without
                     13:  * modification, are permitted provided that the following conditions
                     14:  * are met:
                     15:  * 1. Redistributions of source code must retain the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer.
                     17:  * 2. Redistributions in binary form must reproduce the above copyright
                     18:  *    notice, this list of conditions and the following disclaimer in the
                     19:  *    documentation and/or other materials provided with the distribution.
                     20:  * 3. All advertising materials mentioning features or use of this software
                     21:  *    must display the following acknowledgement:
                     22:  *     This product includes software developed by the University of
                     23:  *     California, Berkeley and its contributors.
                     24:  * 4. Neither the name of the University nor the names of its contributors
                     25:  *    may be used to endorse or promote products derived from this software
                     26:  *    without specific prior written permission.
                     27:  *
                     28:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     29:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     30:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     31:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     32:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     33:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     34:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     35:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     36:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     37:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     38:  * SUCH DAMAGE.
                     39:  *
1.15      cgd        40:  *     @(#)types.h     8.4 (Berkeley) 1/21/94
1.12      cgd        41:  */
                     42:
                     43: #ifndef _SYS_TYPES_H_
1.14      cgd        44: #define        _SYS_TYPES_H_
1.12      cgd        45:
                     46: /* Machine type dependent parameters. */
1.18      cgd        47: #include <machine/types.h>
                     48:
                     49: #include <machine/ansi.h>
1.12      cgd        50: #include <machine/endian.h>
                     51:
1.25      jtc        52: #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
1.12      cgd        53: typedef        unsigned char   u_char;
                     54: typedef        unsigned short  u_short;
                     55: typedef        unsigned int    u_int;
                     56: typedef        unsigned long   u_long;
1.25      jtc        57:
                     58: typedef unsigned char  unchar;         /* Sys V compatibility */
1.12      cgd        59: typedef        unsigned short  ushort;         /* Sys V compatibility */
1.14      cgd        60: typedef        unsigned int    uint;           /* Sys V compatibility */
1.25      jtc        61: typedef unsigned long  ulong;          /* Sys V compatibility */
1.14      cgd        62: #endif
1.12      cgd        63:
1.18      cgd        64: typedef        u_int64_t       u_quad_t;       /* quads */
                     65: typedef        int64_t         quad_t;
1.12      cgd        66: typedef        quad_t *        qaddr_t;
                     67:
1.14      cgd        68: typedef        char *          caddr_t;        /* core address */
1.18      cgd        69: typedef        int32_t         daddr_t;        /* disk address */
                     70: typedef        int32_t         dev_t;          /* device number */
                     71: typedef        u_int32_t       fixpt_t;        /* fixed point number */
                     72: typedef        u_int32_t       gid_t;          /* group id */
                     73: typedef        u_int32_t       ino_t;          /* inode number */
                     74: typedef        long            key_t;          /* IPC key (for Sys V IPC) */
                     75: typedef        u_int16_t       mode_t;         /* permissions */
                     76: typedef        u_int16_t       nlink_t;        /* link count */
1.14      cgd        77: typedef        quad_t          off_t;          /* file offset */
1.18      cgd        78: typedef        int32_t         pid_t;          /* process id */
1.20      jtc        79: typedef quad_t         rlim_t;         /* resource limit */
1.18      cgd        80: typedef        int32_t         segsz_t;        /* segment size */
                     81: typedef        int32_t         swblk_t;        /* swap offset */
                     82: typedef        u_int32_t       uid_t;          /* user id */
1.12      cgd        83:
                     84: /*
1.22      jtc        85:  * These belong in unistd.h, but are placed here too to ensure that
1.26      cgd        86:  * long arguments will be promoted to off_t if the program fails to
1.22      jtc        87:  * include that header or explicitly cast them to off_t.
1.12      cgd        88:  */
1.25      jtc        89: #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
1.21      jtc        90: #ifndef _KERNEL
1.12      cgd        91: #include <sys/cdefs.h>
                     92: __BEGIN_DECLS
                     93: off_t   lseek __P((int, off_t, int));
1.22      jtc        94: int     ftruncate __P((int, off_t));
                     95: int     truncate __P((const char *, off_t));
1.12      cgd        96: __END_DECLS
1.23      jtc        97: #endif /* !_KERNEL */
1.25      jtc        98: #endif /* !defined(_POSIX_SOURCE) ... */
1.12      cgd        99:
1.25      jtc       100: #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
1.18      cgd       101: /* Major, minor numbers, dev_t's. */
                    102: #define        major(x)        ((int32_t)(((u_int32_t)(x) >> 8) & 0xff))
                    103: #define        minor(x)        ((int32_t)((x) & 0xff))
                    104: #define        makedev(x,y)    ((dev_t)(((x) << 8) | (y)))
1.12      cgd       105: #endif
                    106:
1.14      cgd       107: #ifdef _BSD_CLOCK_T_
                    108: typedef        _BSD_CLOCK_T_   clock_t;
                    109: #undef _BSD_CLOCK_T_
1.12      cgd       110: #endif
                    111:
1.14      cgd       112: #ifdef _BSD_SIZE_T_
                    113: typedef        _BSD_SIZE_T_    size_t;
                    114: #undef _BSD_SIZE_T_
1.12      cgd       115: #endif
                    116:
1.14      cgd       117: #ifdef _BSD_SSIZE_T_
                    118: typedef        _BSD_SSIZE_T_   ssize_t;
                    119: #undef _BSD_SSIZE_T_
1.12      cgd       120: #endif
                    121:
1.14      cgd       122: #ifdef _BSD_TIME_T_
                    123: typedef        _BSD_TIME_T_    time_t;
                    124: #undef _BSD_TIME_T_
1.29    ! jtc       125: #endif
        !           126:
        !           127: #ifdef _BSD_CLOCKID_T_
        !           128: typedef        _BSD_CLOCKID_T_ clockid_t;
        !           129: #undef _BSD_CLOCKID_T_
        !           130: #endif
        !           131:
        !           132: #ifdef _BSD_TIMER_T_
        !           133: typedef        _BSD_TIMER_T_   timer_t;
        !           134: #undef _BSD_TIMER_T_
1.12      cgd       135: #endif
                    136:
1.25      jtc       137: #if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
1.12      cgd       138: #define        NBBY    8               /* number of bits in a byte */
                    139:
                    140: /*
                    141:  * Select uses bit masks of file descriptors in longs.  These macros
                    142:  * manipulate such bit fields (the filesystem macros use chars).
                    143:  * FD_SETSIZE may be defined by the user, but the default here should
                    144:  * be enough for most uses.
                    145:  */
                    146: #ifndef        FD_SETSIZE
1.28      explorer  147: #define        FD_SETSIZE      256
1.12      cgd       148: #endif
                    149:
1.18      cgd       150: typedef int32_t        fd_mask;
1.12      cgd       151: #define NFDBITS        (sizeof(fd_mask) * NBBY)        /* bits per mask */
                    152:
                    153: #ifndef howmany
1.18      cgd       154: #define        howmany(x, y)   (((x) + ((y) - 1)) / (y))
1.12      cgd       155: #endif
                    156:
                    157: typedef        struct fd_set {
                    158:        fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
                    159: } fd_set;
                    160:
                    161: #define        FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
                    162: #define        FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
                    163: #define        FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
1.24      jtc       164: #ifdef _KERNEL
1.13      cgd       165: #define        FD_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
1.14      cgd       166: #define        FD_ZERO(p)      bzero(p, sizeof(*(p)))
1.24      jtc       167: #else
                    168: #define        FD_COPY(f, t)   memcpy(t, f, sizeof(*(f)))
                    169: #define        FD_ZERO(p)      memset(p, 0, sizeof(*(p)))
                    170: #endif
1.12      cgd       171:
1.21      jtc       172: #if defined(__STDC__) && defined(_KERNEL)
1.12      cgd       173: /*
1.14      cgd       174:  * Forward structure declarations for function prototypes.  We include the
                    175:  * common structures that cross subsystem boundaries here; others are mostly
                    176:  * used in the same place that the structure is defined.
1.12      cgd       177:  */
                    178: struct proc;
                    179: struct pgrp;
                    180: struct ucred;
                    181: struct rusage;
                    182: struct file;
                    183: struct buf;
                    184: struct tty;
                    185: struct uio;
                    186: #endif
                    187:
1.25      jtc       188: #endif /* !defined(_POSIX_SOURCE) ... */
1.12      cgd       189: #endif /* !_SYS_TYPES_H_ */

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