include/signal.h

   1 #ifndef _SIGNAL_H
   2 #if defined __need_sig_atomic_t || defined __need_sigset_t
   3 # include <signal/signal.h>
   4 #else
   5 # include <signal/signal.h>
   6
   7 libc_hidden_proto (sigemptyset)
   8 libc_hidden_proto (sigfillset)
   9 libc_hidden_proto (sigaddset)
  10 libc_hidden_proto (sigdelset)
  11 libc_hidden_proto (sigismember)
  12 libc_hidden_proto (__sigpause)
  13 libc_hidden_proto (raise)
  14 libc_hidden_proto (__libc_current_sigrtmin)
  15 libc_hidden_proto (__libc_current_sigrtmax)
  16
  17 /* Now define the internal interfaces.  */
  18 extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);
  19 extern int __kill (__pid_t __pid, int __sig);
  20 extern int __sigaction (int __sig, __const struct sigaction *__restrict __act,
  21                         struct sigaction *__restrict __oact);
  22 libc_hidden_proto (__sigaction)
  23 extern int __sigblock (int __mask);
  24 extern int __sigsetmask (int __mask);
  25 extern int __sigprocmask (int __how,
  26                           __const sigset_t *__set, sigset_t *__oset);
  27 extern int __sigsuspend (__const sigset_t *__set);
  28 libc_hidden_proto (__sigsuspend)
  29 #ifndef NO_CANCELLATION
  30 extern int __sigsuspend_nocancel (__const sigset_t *__set) attribute_hidden;
  31 #endif
  32 extern int __sigwait (__const sigset_t *__set, int *__sig);
  33 libc_hidden_proto (__sigwait)
  34 extern int __sigwaitinfo (__const sigset_t *__set, siginfo_t *__info);
  35 libc_hidden_proto (__sigwaitinfo)
  36 extern int __sigtimedwait (__const sigset_t *__set, siginfo_t *__info,
  37                            __const struct timespec *__timeout);
  38 libc_hidden_proto (__sigtimedwait)
  39 extern int __sigqueue (__pid_t __pid, int __sig,
  40                        __const union sigval __val);
  41 extern int __sigvec (int __sig, __const struct sigvec *__vec,
  42                      struct sigvec *__ovec);
  43 extern int __sigreturn (struct sigcontext *__scp);
  44 extern int __sigaltstack (__const struct sigaltstack *__ss,
  45                           struct sigaltstack *__oss);
  46 extern int __libc_sigaction (int sig, const struct sigaction *act,
  47                              struct sigaction *oact);
  48 libc_hidden_proto (__libc_sigaction)
  49
  50 extern int __sigpause (int sig_or_mask, int is_sig);
  51 extern int __default_sigpause (int mask);
  52 extern int __xpg_sigpause (int sig);
  53
  54 /* Simplified sigemptyset() implementation without the parameter checking.  */
  55 #undef __sigemptyset
  56 #define __sigemptyset(ss) (__builtin_memset (ss, '\0', sizeof (sigset_t)), 0)
  57
  58
  59 /* Allocate real-time signal with highest/lowest available priority.  */
  60 extern int __libc_allocate_rtsig (int __high);
  61 #endif
  62 #endif