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 (sigismember)
  10 libc_hidden_proto (__sigpause)
  11
  12 /* Now define the internal interfaces.  */
  13 extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);
  14 extern int __kill (__pid_t __pid, int __sig);
  15 extern int __sigaction (int __sig, __const struct sigaction *__restrict __act,
  16                         struct sigaction *__restrict __oact);
  17 libc_hidden_proto (__sigaction)
  18 extern int __sigblock (int __mask);
  19 extern int __sigsetmask (int __mask);
  20 extern int __sigprocmask (int __how,
  21                           __const sigset_t *__set, sigset_t *__oset);
  22 extern int __sigsuspend (__const sigset_t *__set);
  23 libc_hidden_proto (__sigsuspend)
  24 extern int __sigwait (__const sigset_t *__set, int *__sig);
  25 extern int __sigwaitinfo (__const sigset_t *__set, siginfo_t *__info);
  26 extern int __sigtimedwait (__const sigset_t *__set, siginfo_t *__info,
  27                            __const struct timespec *__timeout);
  28 extern int __sigqueue (__pid_t __pid, int __sig,
  29                        __const union sigval __val);
  30 extern int __sigvec (int __sig, __const struct sigvec *__vec,
  31                      struct sigvec *__ovec);
  32 extern int __sigreturn (struct sigcontext *__scp);
  33 extern int __sigaltstack (__const struct sigaltstack *__ss,
  34                           struct sigaltstack *__oss);
  35 extern int __libc_sigaction (int sig, const struct sigaction *act,
  36                              struct sigaction *oact);
  37
  38 extern int __sigpause (int sig_or_mask, int is_sig);
  39 extern int __default_sigpause (int mask);
  40 extern int __xpg_sigpause (int sig);
  41
  42
  43
  44 /* Allocate real-time signal with highest/lowest available priority.  */
  45 extern int __libc_allocate_rtsig (int __high);
  46 #endif
  47 #endif