112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
#ifndef _SIGNAL_H
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#define _SIGNAL_H
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#include <features.h>
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#include <traditional.h>
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#include <sys/types.h>
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#include <linux/signal.h>
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#ifndef SIGCLD
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#define SIGCLD SIGCHLD
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#endif
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typedef int sig_atomic_t;
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typedef __sighandler_t SignalHandler;
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#define BAD_SIG SIG_ERR
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/* The Interviews version also has these ... */
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#define SignalBad ((SignalHandler)-1)
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#define SignalDefault ((SignalHandler)0)
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#define SignalIgnore ((SignalHandler)1)
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __STDC__
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extern const char* const sys_siglist[];
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#else
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extern char* sys_siglist[];
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#endif
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extern __sighandler_t
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signal _ARGS ((int __sig, __sighandler_t));
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extern int raise _ARGS ((int __sig));
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extern int kill _ARGS ((pid_t __pid, int __sig));
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extern int killpg _ARGS ((int __pgrp, int __sig));
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extern int sigaddset _ARGS ((sigset_t *__mask, int __sig));
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extern int sigdelset _ARGS ((sigset_t *__mask, int __sig));
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extern int sigemptyset _ARGS ((sigset_t *__mask));
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extern int sigfillset _ARGS ((sigset_t *__mask));
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extern int sigismember _ARGS ((const sigset_t *__mask, int __sig));
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extern int sigpending _ARGS ((sigset_t *__set));
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extern int sigprocmask _ARGS ((int __how, sigset_t *__set,
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sigset_t *__oldset));
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extern int sigsuspend _ARGS ((sigset_t *sigmask));
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extern int sigaction _ARGS ((int __sig, struct sigaction *__act,
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struct sigaction *__oldact));
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#define __sigemptyset(set) ((*(set) = 0L), 0)
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#define __sigfillset(set) ((*(set) = -1L), 0)
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#define __sigaddset(set, sig) ((*(set) |= __sigmask (sig)), 0)
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#define __sigdelset(set, sig) ((*(set) &= ~__sigmask (sig)), 0)
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#define __sigismember(set, sig) ((*(set) & __sigmask (sig)) ? 1 : 0)
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#ifdef __OPTIMIZE__
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#define sigemptyset __sigemptyset
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#define sigfillset __sigfillset
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#define sigaddset __sigaddset
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#define sigdelset __sigdelset
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#define sigismember __sigismember
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#endif
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/* Return a mask that includes SIG only. */
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#define __sigmask(sig) (1 << ((sig) - 1))
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extern sigset_t ___ssetmask _ARGS ((sigset_t __mask));
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extern sigset_t ___sgetmask _ARGS ((void));
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extern int __sigblock _ARGS ((int __mask));
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extern int __sigpause _ARGS ((int __mask));
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/* BSD */
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#ifdef __USE_BSD
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#define sigmask __sigmask
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extern int sigblock _ARGS ((int __mask));
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extern int sigpause _ARGS ((int __mask));
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extern sigset_t sigsetmask _ARGS ((int __mask));
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extern sigset_t siggetmask _ARGS ((void));
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extern void psignal _ARGS ((unsigned int __sig, const char *__str));
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#endif /* Use BSD. */
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#ifdef __USE_BSD_SIGNAL
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static __inline__ __sighandler_t
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__bsd_signal (int sig, __sighandler_t handler)
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{
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int ret;
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struct sigaction action, oaction;
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action.sa_handler = handler;
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sigemptyset (&action.sa_mask);
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action.sa_flags = 0;
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ret = sigaction (sig, &action, &oaction);
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return (ret == -1) ? SIG_ERR : oaction.sa_handler;
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}
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#define signal __bsd_signal
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#endif /* __USE_BSD_SIGNAL */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SIGNAL_H */
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