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 1.9 2008/10/15 06:51:21 wrstuden 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 /*
   43  * This header file defines various signal-related types.  We also keep
   44  * the macros to manipulate sigset_t here, to encapsulate knowledge of
   45  * its internals.
   46  */
   47 
   48 #include <sys/featuretest.h>
   49 #include <machine/int_types.h>
   50 #include <machine/ansi.h>
   51 
   52 #ifdef  _BSD_SIZE_T_
   53 typedef _BSD_SIZE_T_    size_t;
   54 #undef  _BSD_SIZE_T_
   55 #endif
   56 
   57 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
   58     defined(_NETBSD_SOURCE)
   59 
   60 typedef struct {
   61         __uint32_t      __bits[4];
   62 } sigset_t;
   63 
   64 /*
   65  * Macro for manipulating signal masks.
   66  */
   67 #define __sigmask(n)            (1 << (((unsigned int)(n) - 1) & 31))
   68 #define __sigword(n)            (((unsigned int)(n) - 1) >> 5)
   69 #define __sigaddset(s, n)       ((s)->__bits[__sigword(n)] |= __sigmask(n))
   70 #define __sigdelset(s, n)       ((s)->__bits[__sigword(n)] &= ~__sigmask(n))
   71 #define __sigismember(s, n)     (((s)->__bits[__sigword(n)] & __sigmask(n)) != 0)
   72 #define __sigemptyset(s)        ((s)->__bits[0] = 0x00000000, \
   73                                  (s)->__bits[1] = 0x00000000, \
   74                                  (s)->__bits[2] = 0x00000000, \
   75                                  (s)->__bits[3] = 0x00000000)
   76 #define __sigsetequal(s1,s2)    ((s1)->__bits[0] == (s2)->__bits[0] && \
   77                                  (s1)->__bits[1] == (s2)->__bits[1] && \
   78                                  (s1)->__bits[2] == (s2)->__bits[2] && \
   79                                  (s1)->__bits[3] == (s2)->__bits[3])
   80 #define __sigfillset(s)         ((s)->__bits[0] = 0xffffffff, \
   81                                  (s)->__bits[1] = 0xffffffff, \
   82                                  (s)->__bits[2] = 0xffffffff, \
   83                                  (s)->__bits[3] = 0xffffffff)
   84 #define __sigplusset(s, t) \
   85         do {                                            \
   86                 (t)->__bits[0] |= (s)->__bits[0];       \
   87                 (t)->__bits[1] |= (s)->__bits[1];       \
   88                 (t)->__bits[2] |= (s)->__bits[2];       \
   89                 (t)->__bits[3] |= (s)->__bits[3];       \
   90         } while (/* CONSTCOND */ 0)
   91 #define __sigminusset(s, t) \
   92         do {                                            \
   93                 (t)->__bits[0] &= ~(s)->__bits[0];      \
   94                 (t)->__bits[1] &= ~(s)->__bits[1];      \
   95                 (t)->__bits[2] &= ~(s)->__bits[2];      \
   96                 (t)->__bits[3] &= ~(s)->__bits[3];      \
   97         } while (/* CONSTCOND */ 0)
   98 #define __sigandset(s, t) \
   99         do {                                            \
  100                 (t)->__bits[0] &= (s)->__bits[0];       \
  101                 (t)->__bits[1] &= (s)->__bits[1];       \
  102                 (t)->__bits[2] &= (s)->__bits[2];       \
  103                 (t)->__bits[3] &= (s)->__bits[3];       \
  104         } while (/* CONSTCOND */ 0)
  105 
  106 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
  107     (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
  108 typedef struct
  109 #if defined(_NETBSD_SOURCE)
  110                sigaltstack
  111 #endif /* _NETBSD_SOURCE */
  112                            {
  113         void    *ss_sp;                 /* signal stack base */
  114         size_t  ss_size;                /* signal stack length */
  115         int     ss_flags;               /* SS_DISABLE and/or SS_ONSTACK */
  116 } stack_t;
  117 
  118 #endif /* _XOPEN_SOURCE_EXTENDED || XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
  119 
  120 #endif  /* _POSIX_C_SOURCE || _XOPEN_SOURCE || ... */
  121 
  122 #if defined(_NETBSD_SOURCE)
  123 /*
  124  * Now include types used by Scheduler Activations. Included here as
  125  * this is the best standard header to add them to.
  126  */
  127 #include <sys/satypes.h>
  128 #endif
  129 
  130 #endif  /* !_SYS_SIGTYPES_H_ */

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