diff options
Diffstat (limited to 'signal/signal.h')
| -rw-r--r-- | signal/signal.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/signal/signal.h b/signal/signal.h index 5fb4bc2a14..8691b6880e 100644 --- a/signal/signal.h +++ b/signal/signal.h @@ -172,6 +172,20 @@ typedef __sigset_t sigset_t; # ifdef _SIGNAL_H +/* We need `struct timespec' later on. */ +# define __need_timespec +# include <time.h> + +/* Type for data associated with a signal. */ +typedef union sigval + { + int sival_int; + void *sival_ptr; + } sigval_t; + +/* Get the `siginfo_t' type plus the needed symbols. */ +# include <bits/siginfo.h> + /* Clear all signals from SET. */ extern int sigemptyset __P ((sigset_t *__set)); @@ -229,6 +243,24 @@ extern int sigpending __P ((sigset_t *__set)); extern int __sigwait __P ((__const sigset_t *__set, int *__sig)); extern int sigwait __P ((__const sigset_t *__set, int *__sig)); +/* Select any of pending signals from SET and place information in INFO. */ +extern int __sigwaitinfo __P ((__const sigset_t *__set, siginfo_t *__info)); +extern int sigwaitinfo __P ((__const sigset_t *__set, siginfo_t *__info)); + +/* Select any of pending signals from SET and place information in INFO. + Wait the imte specified by TIMEOUT if no signal is pending. */ +extern int __sigtimedwait __P ((__const sigset_t *__set, siginfo_t *__info, + __const struct timespec *__timeout)); +extern int sigtimedwait __P ((__const sigset_t *__set, siginfo_t *__info, + __const struct timespec *__timeout)); + +/* Send signal SIG to the process PID. Associate data in VAL with the + signal. */ +extern int __sigqueue __P ((__pid_t __pid, int __sig, + __const union sigval __val)); +extern int sigqueue __P ((__pid_t __pid, int __sig, + __const union sigval __val)); + # endif /* <signal.h> included. */ #endif /* Use POSIX. */ @@ -313,6 +345,18 @@ extern int sigaltstack __P ((__const struct sigaltstack *__ss, #endif /* signal.h included and use BSD or X/Open Unix. */ + +/* The following functions are used internally in the C library and in + other code which need deep insights. */ + +/* Return number of available real-time signal with highest priority. */ +extern int __libc_current_sigrtmin __P ((void)); +/* Return number of available real-time signal with lowest priority. */ +extern int __libc_current_sigrtmax __P ((void)); + +/* Allocate real-time signal with highest/lowest available priority. */ +extern int __libc_allocate_rtsig __P ((int __high)); + __END_DECLS #endif /* signal.h */ |