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https://github.com/AuxXxilium/eudev.git
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93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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* signal.h
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*/
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#ifndef _SIGNAL_H
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#define _SIGNAL_H
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#include <klibc/compiler.h>
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#include <klibc/extern.h>
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#include <string.h> /* For memset() */
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#include <limits.h> /* For LONG_BIT */
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#include <sys/types.h>
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#include <asm/signal.h>
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#include <klibc/archsignal.h>
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/* glibc seems to use sig_atomic_t as "int" pretty much on all architectures.
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Do the same, but allow the architecture to override. */
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#ifdef _KLIBC_HAS_ARCH_SIG_ATOMIC_T
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typedef int sig_atomic_t;
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#endif
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/* Some architectures don't define these */
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#ifndef SA_RESETHAND
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# define SA_RESETHAND SA_ONESHOT
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#endif
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#ifndef SA_NODEFER
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# define SA_NODEFER SA_NOMASK
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#endif
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/* Some architectures define NSIG and not _NSIG or vice versa */
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#ifndef NSIG
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# define NSIG _NSIG
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#endif
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#ifndef _NSIG
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# define _NSIG NSIG
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#endif
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/* If we don't have any real-time signals available to userspace,
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hide them all */
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#if SIGRTMAX <= SIGRTMIN
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# undef SIGRTMIN
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# undef SIGRTMAX
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#endif
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__extern const char * const sys_siglist[];
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/* This assumes sigset_t is either an unsigned long or an array of such,
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and that _NSIG_BPW in the kernel is always LONG_BIT */
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static __inline__ int sigemptyset(sigset_t *__set)
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{
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memset(__set, 0, sizeof *__set);
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return 0;
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}
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static __inline__ int sigfillset(sigset_t *__set)
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{
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memset(__set, ~0, sizeof *__set);
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return 0;
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}
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static __inline__ int sigaddset(sigset_t *__set, int __signum)
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{
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unsigned long *__lset = (unsigned long *)__set;
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__lset[__signum/LONG_BIT] |= 1UL << (__signum%LONG_BIT);
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return 0;
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}
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static __inline__ int sigdelset(sigset_t *__set, int __signum)
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{
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unsigned long *__lset = (unsigned long *)__set;
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__lset[__signum/LONG_BIT] &= ~(1UL << (__signum%LONG_BIT));
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return 0;
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}
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static __inline__ int sigismember(sigset_t *__set, int __signum)
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{
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unsigned long *__lset = (unsigned long *)__set;
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return (int)((__lset[__signum/LONG_BIT] >> (__signum%LONG_BIT)) & 1);
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}
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__extern __sighandler_t __signal(int, __sighandler_t, int);
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__extern __sighandler_t sysv_signal(int, __sighandler_t);
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__extern __sighandler_t bsd_signal(int, __sighandler_t);
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__extern int sigaction(int, const struct sigaction *, struct sigaction *);
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__extern int sigprocmask(int, const sigset_t *, sigset_t *);
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__extern int sigpending(sigset_t *);
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__extern int sigsuspend(const sigset_t *);
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__extern int rt_sigaction(int, const struct sigaction *, struct sigaction *, size_t);
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__extern int rt_sigprocmask(int, const sigset_t *, sigset_t *, size_t);
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__extern int rt_sigpending(sigset_t *, size_t);
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__extern int rt_sigsuspend(const sigset_t *, size_t);
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__extern int raise(int);
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__extern int kill(pid_t, int);
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#endif /* _SIGNAL_H */
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