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19bcfcbab4
memory.c: Now memory diagnostics are printed on stderr. wrapper.mod, memory.c: Convert whens to cases and ors to else ifs. other files: copyright notices.
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
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** Copyright (C) 1995 University of Melbourne.
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** This file may only be copied under the terms of the GNU Library General
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** Public License - see the file COPYING.LIB in the Mercury distribution.
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*/
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#ifndef EXT_SIGNAL_H
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#define EXT_SIGNAL_H
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/* do we really need all this junk? */
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#ifdef HAVE_SIGINFO
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#include <sys/siginfo.h>
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#ifndef __sgi
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typedef struct { /* signal set type */
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unsigned long __sigbits[4];
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} sigset_t;
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struct sigaction {
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int sa_flags;
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#if defined(__sparc)
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union {
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void (*_handler)(int);
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void (*_sigaction)(int, siginfo_t *, void *);
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} _funcptr;
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#define sa_handler _funcptr._handler
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#define sa_sigaction _funcptr._sigaction
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#elif defined(__sgi)
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void (*sa_handler)(int);
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#else
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#error "unknown machine type"
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#endif
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sigset_t sa_mask;
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int sa_resv[2];
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};
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/* definitions for the sa_flags field */
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#define SA_ONSTACK 0x00000001
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#define SA_RESETHAND 0x00000002
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#define SA_RESTART 0x00000004
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#define SA_SIGINFO 0x00000008
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#define SA_NODEFER 0x00000010
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/* this is only valid for SIGCLD */
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#define SA_NOCLDWAIT 0x00010000 /* don't save zombie children */
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/* this is only valid for SIGWAITING */
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#define SA_WAITSIG 0x00010000 /* send SIGWAITING if all lwps block */
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/* this is only valid for SIGCLD */
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#define SA_NOCLDSTOP 0x00020000 /* don't send job control SIGCLD's */
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/*
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* use of these symbols by applications is injurious
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* to binary compatibility, use _sys_nsig instead
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*/
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#define NSIG 44 /* valid signals range from 1 to NSIG-1 */
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#define MAXSIG 43 /* size of u_signal[], NSIG-1 <= MAXSIG */
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/* Note: when changing MAXSIG, be sure to update the */
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/* sizes of u_sigmask and u_signal in uts/adb/u.adb. */
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#define S_SIGNAL 1
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#define S_SIGSET 2
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#define S_SIGACTION 3
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#define S_NONE 4
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#define SIGSTKSZ 8192
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#define SS_ONSTACK 0x00000001
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#define SS_DISABLE 0x00000002
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struct sigaltstack {
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char *ss_sp;
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int ss_size;
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int ss_flags;
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};
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typedef struct sigaltstack stack_t;
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extern int kill(pid_t, int);
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extern int sigaction(int, const struct sigaction *, struct sigaction *);
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#ifndef sigaddset
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extern int sigaddset(sigset_t *, int);
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#endif
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#ifndef sigdelset
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extern int sigdelset(sigset_t *, int);
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#endif
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#ifndef sigemptyset
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extern int sigemptyset(sigset_t *);
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#endif
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#ifndef sigfillset
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extern int sigfillset(sigset_t *);
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#endif
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#ifndef sigismember
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extern int sigismember(const sigset_t *, int);
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#endif
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extern int sigpending(sigset_t *);
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extern int sigprocmask(int, const sigset_t *, sigset_t *);
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extern int sigsuspend(const sigset_t *);
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#endif
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#endif /* HAVE_SIGINFO */
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#endif /* EXT_SIGNAL_H */
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