projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
|---|---|---|
| a41a0e28 GKH |
1 | /* |
| 2 | * signal.h | |
| 3 | */ | |
| 4 | ||
| 5 | #ifndef _SIGNAL_H | |
| 6 | #define _SIGNAL_H | |
| 7 | ||
| 8 | #include <klibc/extern.h> | |
| 9 | #include <string.h> /* For memset() */ | |
| 10 | #include <limits.h> /* For LONG_BIT */ | |
| 11 | #include <sys/types.h> | |
| 12 | #include <asm/signal.h> | |
| 13 | ||
| 14 | /* Some architectures don't define these */ | |
| 15 | #ifndef SA_RESETHAND | |
| 16 | # define SA_RESETHAND SA_ONESHOT | |
| 17 | #endif | |
| 18 | #ifndef SA_NODEFER | |
| 19 | # define SA_NODEFER SA_NOMASK | |
| 20 | #endif | |
| 21 | #ifndef NSIG | |
| 22 | # define NSIG _NSIG | |
| 23 | #endif | |
| 24 | ||
| 1e959a4b GKH |
25 | typedef int sig_atomic_t; |
| 26 | ||
| a41a0e28 GKH |
27 | __extern const char * const sys_siglist[]; |
| 28 | ||
| 29 | /* This assumes sigset_t is either an unsigned long or an array of such, | |
| 30 | and that _NSIG_BPW in the kernel is always LONG_BIT */ | |
| 31 | ||
| 32 | static __inline__ int sigemptyset(sigset_t *__set) | |
| 33 | { | |
| 34 | memset(__set, 0, sizeof *__set); | |
| 35 | return 0; | |
| 36 | } | |
| 37 | static __inline__ int sigfillset(sigset_t *__set) | |
| 38 | { | |
| 39 | memset(__set, ~0, sizeof *__set); | |
| 40 | return 0; | |
| 41 | } | |
| 42 | static __inline__ int sigaddset(sigset_t *__set, int __signum) | |
| 43 | { | |
| 44 | unsigned long *__lset = (unsigned long *)__set; | |
| 45 | __lset[__signum/LONG_BIT] |= 1UL << (__signum%LONG_BIT); | |
| 46 | return 0; | |
| 47 | } | |
| 48 | static __inline__ int sigdelset(sigset_t *__set, int __signum) | |
| 49 | { | |
| 50 | unsigned long *__lset = (unsigned long *)__set; | |
| 51 | __lset[__signum/LONG_BIT] &= ~(1UL << (__signum%LONG_BIT)); | |
| 52 | return 0; | |
| 53 | } | |
| 54 | static __inline__ int sigismember(sigset_t *__set, int __signum) | |
| 55 | { | |
| 56 | unsigned long *__lset = (unsigned long *)__set; | |
| 57 | return (int)((__lset[__signum/LONG_BIT] >> (__signum%LONG_BIT)) & 1); | |
| 58 | } | |
| 59 | ||
| 60 | __extern __sighandler_t __signal(int, __sighandler_t, int); | |
| 61 | __extern __sighandler_t signal(int, __sighandler_t); | |
| 62 | __extern __sighandler_t bsd_signal(int, __sighandler_t); | |
| 63 | __extern int sigaction(int, const struct sigaction *, struct sigaction *); | |
| 64 | __extern int sigprocmask(int, const sigset_t *, sigset_t *); | |
| 65 | __extern int sigpending(sigset_t *); | |
| 66 | __extern int sigsuspend(const sigset_t *); | |
| 67 | __extern int rt_sigaction(int, const struct sigaction *, struct sigaction *, size_t); | |
| 68 | __extern int rt_sigprocmask(int, const sigset_t *, sigset_t *, size_t); | |
| 69 | __extern int rt_sigpending(sigset_t *, size_t); | |
| 70 | __extern int rt_sigsuspend(const sigset_t *, size_t); | |
| 71 | __extern int raise(int); | |
| 72 | __extern int kill(pid_t, int); | |
| 73 | ||
| 74 | #endif /* _SIGNAL_H */ |