The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/sigtypes.h

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    1 /*      $NetBSD: sigtypes.h,v 1.5 2003/10/13 18:50:43 fvdl Exp $        */
    2 
    3 /*
    4  * Copyright (c) 1982, 1986, 1989, 1991, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    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. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  *      @(#)signal.h    8.4 (Berkeley) 5/4/95
   37  */
   38 
   39 #ifndef _SYS_SIGTYPES_H_
   40 #define _SYS_SIGTYPES_H_
   41 
   42 #if defined(_KERNEL_OPT)
   43 #include "opt_compat_netbsd32.h"
   44 #endif
   45 
   46 /*
   47  * This header file defines various signal-related types.  We also keep
   48  * the macros to manipulate sigset_t here, to encapsulate knowledge of
   49  * its internals.
   50  */
   51 
   52 #include <sys/featuretest.h>
   53 #include <machine/int_types.h>
   54 #include <machine/ansi.h>
   55 
   56 #ifdef  _BSD_SIZE_T_
   57 typedef _BSD_SIZE_T_    size_t;
   58 #undef  _BSD_SIZE_T_
   59 #endif
   60 
   61 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
   62     defined(_NETBSD_SOURCE)
   63 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
   64 typedef unsigned int sigset13_t;
   65 
   66 /*
   67  * Macro for manipulating signal masks.
   68  */
   69 #define __sigmask13(n)          (1 << ((n) - 1))
   70 #define __sigaddset13(s, n)     (*(s) |= __sigmask13(n))
   71 #define __sigdelset13(s, n)     (*(s) &= ~__sigmask13(n))
   72 #define __sigismember13(s, n)   (*(s) & __sigmask13(n))
   73 #define __sigemptyset13(s)      (*(s) = 0)
   74 #define __sigfillset13(s)       (*(s) = ~(sigset13_t)0)
   75 #endif /* __LIBC12_SOURCE__ || _KERNEL */
   76 
   77 typedef struct {
   78         __uint32_t      __bits[4];
   79 } sigset_t;
   80 
   81 /*
   82  * Macro for manipulating signal masks.
   83  */
   84 #define __sigmask(n)            (1 << (((unsigned int)(n) - 1) & 31))
   85 #define __sigword(n)            (((unsigned int)(n) - 1) >> 5)
   86 #define __sigaddset(s, n)       ((s)->__bits[__sigword(n)] |= __sigmask(n))
   87 #define __sigdelset(s, n)       ((s)->__bits[__sigword(n)] &= ~__sigmask(n))
   88 #define __sigismember(s, n)     (((s)->__bits[__sigword(n)] & __sigmask(n)) != 0)
   89 #define __sigemptyset(s)        ((s)->__bits[0] = 0x00000000, \
   90                                  (s)->__bits[1] = 0x00000000, \
   91                                  (s)->__bits[2] = 0x00000000, \
   92                                  (s)->__bits[3] = 0x00000000)
   93 #define __sigsetequal(s1,s2)    ((s1)->__bits[0] == (s2)->__bits[0] && \
   94                                  (s1)->__bits[1] == (s2)->__bits[1] && \
   95                                  (s1)->__bits[2] == (s2)->__bits[2] && \
   96                                  (s1)->__bits[3] == (s2)->__bits[3])
   97 #define __sigfillset(s)         ((s)->__bits[0] = 0xffffffff, \
   98                                  (s)->__bits[1] = 0xffffffff, \
   99                                  (s)->__bits[2] = 0xffffffff, \
  100                                  (s)->__bits[3] = 0xffffffff)
  101 #define __sigplusset(s, t) \
  102         do {                                            \
  103                 (t)->__bits[0] |= (s)->__bits[0];       \
  104                 (t)->__bits[1] |= (s)->__bits[1];       \
  105                 (t)->__bits[2] |= (s)->__bits[2];       \
  106                 (t)->__bits[3] |= (s)->__bits[3];       \
  107         } while (/* CONSTCOND */ 0)
  108 #define __sigminusset(s, t) \
  109         do {                                            \
  110                 (t)->__bits[0] &= ~(s)->__bits[0];      \
  111                 (t)->__bits[1] &= ~(s)->__bits[1];      \
  112                 (t)->__bits[2] &= ~(s)->__bits[2];      \
  113                 (t)->__bits[3] &= ~(s)->__bits[3];      \
  114         } while (/* CONSTCOND */ 0)
  115 #define __sigandset(s, t) \
  116         do {                                            \
  117                 (t)->__bits[0] &= (s)->__bits[0];       \
  118                 (t)->__bits[1] &= (s)->__bits[1];       \
  119                 (t)->__bits[2] &= (s)->__bits[2];       \
  120                 (t)->__bits[3] &= (s)->__bits[3];       \
  121         } while (/* CONSTCOND */ 0)
  122 
  123 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
  124 /* Not strictly a defined type, but is logically associated with stack_t. */
  125 struct sigaltstack13 {
  126         char    *ss_sp;                 /* signal stack base */
  127         int     ss_size;                /* signal stack length */
  128         int     ss_flags;               /* SS_DISABLE and/or SS_ONSTACK */
  129 };
  130 #endif /* defined(__LIBC12_SOURCE__) || defined(_KERNEL) */
  131 
  132 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
  133     (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
  134 typedef struct
  135 #if defined(_NETBSD_SOURCE)
  136                sigaltstack
  137 #endif /* _NETBSD_SOURCE */
  138                            {
  139         void    *ss_sp;                 /* signal stack base */
  140         size_t  ss_size;                /* signal stack length */
  141         int     ss_flags;               /* SS_DISABLE and/or SS_ONSTACK */
  142 } stack_t;
  143 
  144 #endif /* _XOPEN_SOURCE_EXTENDED || XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
  145 
  146 #endif  /* _POSIX_C_SOURCE || _XOPEN_SOURCE || ... */
  147 
  148 #if defined(COMPAT_NETBSD32) && defined(_KERNEL)
  149 
  150 struct __sigaltstack32 {
  151         uint32_t        ss_sp;
  152         uint32_t        ss_size;
  153         int32_t         ss_flags;
  154 };
  155  
  156 typedef struct __sigaltstack32 stack32_t;
  157 
  158 #endif /* COMPAT_NETBSD32 && _KERNEL */
  159 
  160 
  161 #endif  /* !_SYS_SIGTYPES_H_ */

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