| #ifndef _SIGNAL_H |
| #if defined __need_sig_atomic_t || defined __need_sigset_t |
| # include <signal/signal.h> |
| #else |
| # include <signal/signal.h> |
| |
| # ifndef _ISOMAC |
| libc_hidden_proto (sigemptyset) |
| libc_hidden_proto (sigfillset) |
| libc_hidden_proto (sigaddset) |
| libc_hidden_proto (sigdelset) |
| libc_hidden_proto (sigismember) |
| extern int __sigpause (int sig_or_mask, int is_sig); |
| libc_hidden_proto (__sigpause) |
| libc_hidden_proto (raise) |
| libc_hidden_proto (__libc_current_sigrtmin) |
| libc_hidden_proto (__libc_current_sigrtmax) |
| libc_hidden_proto (_sys_siglist) |
| |
| /* Now define the internal interfaces. */ |
| extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler); |
| extern int __kill (__pid_t __pid, int __sig); |
| extern int __sigaction (int __sig, const struct sigaction *__restrict __act, |
| struct sigaction *__restrict __oact); |
| libc_hidden_proto (__sigaction) |
| extern int __sigblock (int __mask); |
| extern int __sigsetmask (int __mask); |
| extern int __sigprocmask (int __how, |
| const sigset_t *__set, sigset_t *__oset); |
| extern int __sigsuspend (const sigset_t *__set); |
| libc_hidden_proto (__sigsuspend) |
| #ifndef NO_CANCELLATION |
| extern int __sigsuspend_nocancel (const sigset_t *__set) attribute_hidden; |
| #endif |
| extern int __sigwait (const sigset_t *__set, int *__sig); |
| libc_hidden_proto (__sigwait) |
| extern int __sigwaitinfo (const sigset_t *__set, siginfo_t *__info); |
| libc_hidden_proto (__sigwaitinfo) |
| extern int __sigtimedwait (const sigset_t *__set, siginfo_t *__info, |
| const struct timespec *__timeout); |
| libc_hidden_proto (__sigtimedwait) |
| extern int __sigqueue (__pid_t __pid, int __sig, |
| const union sigval __val); |
| #ifdef __USE_MISC |
| extern int __sigreturn (struct sigcontext *__scp); |
| #endif |
| extern int __sigaltstack (const struct sigaltstack *__ss, |
| struct sigaltstack *__oss); |
| extern int __libc_sigaction (int sig, const struct sigaction *act, |
| struct sigaction *oact); |
| libc_hidden_proto (__libc_sigaction) |
| |
| extern int __default_sigpause (int mask); |
| extern int __xpg_sigpause (int sig); |
| |
| /* Simplified sigemptyset() implementation without the parameter checking. */ |
| #undef __sigemptyset |
| #define __sigemptyset(ss) \ |
| ({ __builtin_memset (ss, '\0', sizeof (sigset_t)); 0; }) |
| |
| |
| /* Allocate real-time signal with highest/lowest available priority. */ |
| extern int __libc_allocate_rtsig (int __high); |
| |
| # if IS_IN (rtld) |
| extern __typeof (__sigaction) __sigaction attribute_hidden; |
| extern __typeof (__libc_sigaction) __libc_sigaction attribute_hidden; |
| # endif |
| # endif |
| #endif |
| #endif |