mirror of
https://github.com/systemd/systemd.git
synced 2025-03-15 06:50:17 +03:00
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
|
/*
|
||
|
|
* signal.h
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _SIGNAL_H
|
||
|
|
#define _SIGNAL_H
|
||
|
|
|
||
|
|
#include <klibc/compiler.h>
|
||
|
|
#include <klibc/extern.h>
|
||
|
|
#include <string.h> /* For memset() */
|
||
|
|
#include <limits.h> /* For LONG_BIT */
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <asm/signal.h>
|
||
|
|
|
||
|
|
#include <klibc/archsignal.h>
|
||
|
|
|
||
|
|
/* glibc seems to use sig_atomic_t as "int" pretty much on all architectures.
|
||
|
|
Do the same, but allow the architecture to override. */
|
||
|
|
#ifdef _KLIBC_HAS_ARCH_SIG_ATOMIC_T
|
||
|
|
typedef int sig_atomic_t;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Some architectures don't define these */
|
||
|
|
#ifndef SA_RESETHAND
|
||
|
|
# define SA_RESETHAND SA_ONESHOT
|
||
|
|
#endif
|
||
|
|
#ifndef SA_NODEFER
|
||
|
|
# define SA_NODEFER SA_NOMASK
|
||
|
|
#endif
|
||
|
|
#ifndef NSIG
|
||
|
|
# define NSIG _NSIG
|
||
|
|
#endif
|
||
|
|
|
||
|
|
__extern const char * const sys_siglist[];
|
||
|
|
|
||
|
|
/* This assumes sigset_t is either an unsigned long or an array of such,
|
||
|
|
and that _NSIG_BPW in the kernel is always LONG_BIT */
|
||
|
|
|
||
|
|
static __inline__ int sigemptyset(sigset_t *__set)
|
||
|
|
{
|
||
|
|
memset(__set, 0, sizeof *__set);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static __inline__ int sigfillset(sigset_t *__set)
|
||
|
|
{
|
||
|
|
memset(__set, ~0, sizeof *__set);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static __inline__ int sigaddset(sigset_t *__set, int __signum)
|
||
|
|
{
|
||
|
|
unsigned long *__lset = (unsigned long *)__set;
|
||
|
|
__lset[__signum/LONG_BIT] |= 1UL << (__signum%LONG_BIT);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static __inline__ int sigdelset(sigset_t *__set, int __signum)
|
||
|
|
{
|
||
|
|
unsigned long *__lset = (unsigned long *)__set;
|
||
|
|
__lset[__signum/LONG_BIT] &= ~(1UL << (__signum%LONG_BIT));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
static __inline__ int sigismember(sigset_t *__set, int __signum)
|
||
|
|
{
|
||
|
|
unsigned long *__lset = (unsigned long *)__set;
|
||
|
|
return (int)((__lset[__signum/LONG_BIT] >> (__signum%LONG_BIT)) & 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
__extern __sighandler_t __signal(int, __sighandler_t, int);
|
||
|
|
__extern __sighandler_t sysv_signal(int, __sighandler_t);
|
||
|
|
__extern __sighandler_t bsd_signal(int, __sighandler_t);
|
||
|
|
__extern int sigaction(int, const struct sigaction *, struct sigaction *);
|
||
|
|
__extern int sigprocmask(int, const sigset_t *, sigset_t *);
|
||
|
|
__extern int sigpending(sigset_t *);
|
||
|
|
__extern int sigsuspend(const sigset_t *);
|
||
|
|
__extern int rt_sigaction(int, const struct sigaction *, struct sigaction *, size_t);
|
||
|
|
__extern int rt_sigprocmask(int, const sigset_t *, sigset_t *, size_t);
|
||
|
|
__extern int rt_sigpending(sigset_t *, size_t);
|
||
|
|
__extern int rt_sigsuspend(const sigset_t *, size_t);
|
||
|
|
__extern int raise(int);
|
||
|
|
__extern int kill(pid_t, int);
|
||
|
|
|
||
|
|
#endif /* _SIGNAL_H */
|