120 lines
5.0 KiB
C
120 lines
5.0 KiB
C
/*
|
|
* Copyright (c) 1991, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
#ifndef _SYS_SIGNALVAR_H_ /* tmp for user.h */
|
|
#define _SYS_SIGNALVAR_H_
|
|
|
|
/*
|
|
* Kernel signal definitions and data structures,
|
|
* not exported to user programs.
|
|
*
|
|
* For 2BSD the parts that did not apply were cut out.
|
|
*/
|
|
|
|
/* signal flags */
|
|
#define SAS_OLDMASK 0x01 /* need to restore mask before pause */
|
|
#define SAS_ALTSTACK 0x02 /* have alternate signal stack */
|
|
|
|
/* additional signal action values, used only temporarily/internally */
|
|
#define SIG_CATCH (sig_t) 2
|
|
#define SIG_HOLD (sig_t) 3
|
|
|
|
/*
|
|
* Determine signal that should be delivered to process p, the current
|
|
* process, 0 if none. If there is a pending stop signal with default
|
|
* action, the process stops in issignal().
|
|
*
|
|
* This probably should be a routine (assembly) instead of a macro due
|
|
* to the voluminous code generated by all of the 'long' operations.
|
|
*/
|
|
#define CURSIG(p) (((p)->p_sig == 0 || \
|
|
(((p)->p_flag & P_TRACED) == 0 && \
|
|
((p)->p_sig & ~(p)->p_sigmask) == 0)) ? \
|
|
0 : issignal(p))
|
|
|
|
/*
|
|
* Signal properties and actions.
|
|
* The array below categorizes the signals and their default actions
|
|
* according to the following properties:
|
|
*/
|
|
#define SA_KILL 0x01 /* terminates process by default */
|
|
#define SA_CORE 0x02 /* ditto and coredumps */
|
|
#define SA_STOP 0x04 /* suspend process */
|
|
#define SA_TTYSTOP 0x08 /* ditto, from tty */
|
|
#define SA_IGNORE 0x10 /* ignore by default */
|
|
#define SA_CONT 0x20 /* continue if suspended */
|
|
|
|
#ifdef SIGPROP
|
|
const char sigprop [NSIG + 1] = {
|
|
0, /* unused */
|
|
SA_KILL, /* SIGHUP */
|
|
SA_KILL, /* SIGINT */
|
|
SA_KILL | SA_CORE, /* SIGQUIT */
|
|
SA_KILL | SA_CORE, /* SIGILL */
|
|
SA_KILL | SA_CORE, /* SIGTRAP */
|
|
SA_KILL | SA_CORE, /* SIGABRT */
|
|
SA_KILL | SA_CORE, /* SIGEMT */
|
|
SA_KILL | SA_CORE, /* SIGFPE */
|
|
SA_KILL, /* SIGKILL */
|
|
SA_KILL | SA_CORE, /* SIGBUS */
|
|
SA_KILL | SA_CORE, /* SIGSEGV */
|
|
SA_KILL | SA_CORE, /* SIGSYS */
|
|
SA_KILL, /* SIGPIPE */
|
|
SA_KILL, /* SIGALRM */
|
|
SA_KILL, /* SIGTERM */
|
|
SA_IGNORE, /* SIGURG */
|
|
SA_STOP, /* SIGSTOP */
|
|
SA_STOP | SA_TTYSTOP, /* SIGTSTP */
|
|
SA_IGNORE | SA_CONT, /* SIGCONT */
|
|
SA_IGNORE, /* SIGCHLD */
|
|
SA_STOP | SA_TTYSTOP, /* SIGTTIN */
|
|
SA_STOP | SA_TTYSTOP, /* SIGTTOU */
|
|
SA_IGNORE, /* SIGIO */
|
|
SA_KILL, /* SIGXCPU */
|
|
SA_KILL, /* SIGXFSZ */
|
|
SA_KILL, /* SIGVTALRM */
|
|
SA_KILL, /* SIGPROF */
|
|
SA_IGNORE, /* SIGWINCH */
|
|
SA_IGNORE, /* SIGINFO */
|
|
SA_KILL, /* SIGUSR1 */
|
|
SA_KILL, /* SIGUSR2 */
|
|
};
|
|
#endif /* SIGPROP */
|
|
|
|
#ifdef KERNEL
|
|
#define contsigmask (sigmask(SIGCONT))
|
|
#define stopsigmask (sigmask(SIGSTOP) | sigmask(SIGTSTP) | \
|
|
sigmask(SIGTTIN) | sigmask(SIGTTOU))
|
|
#define sigcantmask (sigmask(SIGKILL) | sigmask(SIGSTOP))
|
|
#endif
|
|
#endif /* !_SYS_SIGNALVAR_H_ */
|