reactos/drivers/lib/oskittcp/include/freebsd/src/sys/sys/signalvar.h

   1 /*
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)signalvar.h 8.3 (Berkeley) 1/4/94
  34  */
  35
  36 #ifndef _SYS_SIGNALVAR_H_               /* tmp for user.h */
  37 #define _SYS_SIGNALVAR_H_
  38
  39 /*
  40  * Kernel signal definitions and data structures,
  41  * not exported to user programs.
  42  */
  43
  44 /*
  45  * Process signal actions and state, needed only within the process
  46  * (not necessarily resident).
  47  */
  48 struct  sigacts {
  49         sig_t   ps_sigact[NSIG];        /* disposition of signals */
  50         sigset_t ps_catchmask[NSIG];    /* signals to be blocked */
  51         sigset_t ps_sigonstack;         /* signals to take on sigstack */
  52         sigset_t ps_sigintr;            /* signals that interrupt syscalls */
  53         sigset_t ps_oldmask;            /* saved mask from before sigpause */
  54         int     ps_flags;               /* signal flags, below */
  55         struct  sigaltstack ps_sigstk;  /* sp & on stack state variable */
  56         int     ps_sig;                 /* for core dump/debugger XXX */
  57         int     ps_code;                /* for core dump/debugger XXX */
  58         int     ps_addr;                /* for core dump/debugger XXX */
  59         sigset_t ps_usertramp;          /* SunOS compat; libc sigtramp XXX */
  60 };
  61
  62 /* signal flags */
  63 #define SAS_OLDMASK     0x01            /* need to restore mask before pause */
  64 #define SAS_ALTSTACK    0x02            /* have alternate signal stack */
  65
  66 /* additional signal action values, used only temporarily/internally */
  67 #define SIG_CATCH       (void (*)())2
  68 #define SIG_HOLD        (void (*)())3
  69
  70 /*
  71  * get signal action for process and signal; currently only for current process
  72  */
  73 #define SIGACTION(p, sig)       (p->p_sigacts->ps_sigact[(sig)])
  74
  75 /*
  76  * Determine signal that should be delivered to process p, the current
  77  * process, 0 if none.  If there is a pending stop signal with default
  78  * action, the process stops in issig().
  79  */
  80 #define CURSIG(p)                                                       \
  81         (((p)->p_siglist == 0 ||                                        \
  82             (((p)->p_flag & P_TRACED) == 0 &&                           \
  83             ((p)->p_siglist & ~(p)->p_sigmask) == 0)) ?                 \
  84             0 : issignal(p))
  85
  86 /*
  87  * Clear a pending signal from a process.
  88  */
  89 #define CLRSIG(p, sig)  { (p)->p_siglist &= ~sigmask(sig); }
  90
  91 /*
  92  * Signal properties and actions.
  93  * The array below categorizes the signals and their default actions
  94  * according to the following properties:
  95  */
  96 #define SA_KILL         0x01            /* terminates process by default */
  97 #define SA_CORE         0x02            /* ditto and coredumps */
  98 #define SA_STOP         0x04            /* suspend process */
  99 #define SA_TTYSTOP      0x08            /* ditto, from tty */
 100 #define SA_IGNORE       0x10            /* ignore by default */
 101 #define SA_CONT         0x20            /* continue if suspended */
 102 #define SA_CANTMASK     0x40            /* non-maskable, catchable */
 103
 104 #ifdef  SIGPROP
 105 int sigprop[NSIG + 1] = {
 106         0,                      /* unused */
 107         SA_KILL,                /* SIGHUP */
 108         SA_KILL,                /* SIGINT */
 109         SA_KILL|SA_CORE,        /* SIGQUIT */
 110         SA_KILL|SA_CORE,        /* SIGILL */
 111         SA_KILL|SA_CORE,        /* SIGTRAP */
 112         SA_KILL|SA_CORE,        /* SIGABRT */
 113         SA_KILL|SA_CORE,        /* SIGEMT */
 114         SA_KILL|SA_CORE,        /* SIGFPE */
 115         SA_KILL,                /* SIGKILL */
 116         SA_KILL|SA_CORE,        /* SIGBUS */
 117         SA_KILL|SA_CORE,        /* SIGSEGV */
 118         SA_KILL|SA_CORE,        /* SIGSYS */
 119         SA_KILL,                /* SIGPIPE */
 120         SA_KILL,                /* SIGALRM */
 121         SA_KILL,                /* SIGTERM */
 122         SA_IGNORE,              /* SIGURG */
 123         SA_STOP,                /* SIGSTOP */
 124         SA_STOP|SA_TTYSTOP,     /* SIGTSTP */
 125         SA_IGNORE|SA_CONT,      /* SIGCONT */
 126         SA_IGNORE,              /* SIGCHLD */
 127         SA_STOP|SA_TTYSTOP,     /* SIGTTIN */
 128         SA_STOP|SA_TTYSTOP,     /* SIGTTOU */
 129         SA_IGNORE,              /* SIGIO */
 130         SA_KILL,                /* SIGXCPU */
 131         SA_KILL,                /* SIGXFSZ */
 132         SA_KILL,                /* SIGVTALRM */
 133         SA_KILL,                /* SIGPROF */
 134         SA_IGNORE,              /* SIGWINCH  */
 135         SA_IGNORE,              /* SIGINFO */
 136         SA_KILL,                /* SIGUSR1 */
 137         SA_KILL,                /* SIGUSR2 */
 138 };
 139
 140 #define contsigmask     (sigmask(SIGCONT))
 141 #define stopsigmask     (sigmask(SIGSTOP) | sigmask(SIGTSTP) | \
 142                             sigmask(SIGTTIN) | sigmask(SIGTTOU))
 143
 144 #endif /* SIGPROP */
 145
 146 #define sigcantmask     (sigmask(SIGKILL) | sigmask(SIGSTOP))
 147
 148 #ifdef KERNEL
 149 /*
 150  * Machine-independent functions:
 151  */
 152 int     coredump __P((struct proc *p));
 153 void    execsigs __P((struct proc *p));
 154 void    gsignal __P((int pgid, int sig));
 155 int     issig __P((struct proc *p));
 156 int     issignal __P((struct proc *p));
 157 void    killproc __P((struct proc *, char *));
 158 void    pgsignal __P((struct pgrp *pgrp, int sig, int checkctty));
 159 void    postsig __P((int sig));
 160 void    psignal __P((struct proc *p, int sig));
 161 void    sigexit __P((struct proc *, int));
 162 void    siginit __P((struct proc *p));
 163 void    trapsignal __P((struct proc *p, int sig, unsigned code));
 164
 165 /*
 166  * Machine-dependent functions:
 167  */
 168 void    sendsig __P((sig_t action, int sig, int returnmask, unsigned code));
 169 #endif  /* KERNEL */
 170 #endif  /* !_SYS_SIGNALVAR_H_ */