diff options
Diffstat (limited to 'signal/signal.h')
| -rw-r--r-- | signal/signal.h | 35 |
1 files changed, 10 insertions, 25 deletions
diff --git a/signal/signal.h b/signal/signal.h index 97656d8fd0..9cf9218a6d 100644 --- a/signal/signal.h +++ b/signal/signal.h @@ -81,14 +81,12 @@ extern __sighandler_t __REDIRECT (signal, #ifdef __USE_XOPEN /* The X/Open definition of `signal' conflicts with the BSD version. So they defined another function `bsd_signal'. */ -extern __sighandler_t __bsd_signal __P ((int __sig, __sighandler_t __handler)); extern __sighandler_t bsd_signal __P ((int __sig, __sighandler_t __handler)); #endif /* Send signal SIG to process number PID. If PID is zero, send SIG to all processes in the current process's process group. If PID is < -1, send SIG to all processes in process group - PID. */ -extern int __kill __P ((__pid_t __pid, int __sig)); #ifdef __USE_POSIX extern int kill __P ((__pid_t __pid, int __sig)); #endif /* Use POSIX. */ @@ -115,13 +113,6 @@ extern void psignal __P ((int __sig, __const char *__s)); #endif /* Use misc. */ -/* Block signals in MASK, returning the old mask. */ -extern int __sigblock __P ((int __mask)); - -/* Set the mask of blocked signals to MASK, returning the old mask. */ -extern int __sigsetmask __P ((int __mask)); - - /* The `sigpause' function has two different interfaces. The original BSD definition defines the argument as a mask of the signal, while the more modern interface in X/Open defines it as the signal @@ -143,13 +134,21 @@ extern int sigpause __P ((int __mask)); #ifdef __USE_BSD +/* None of the following functions should be used anymore. They are here + only for compatibility. A single word (`int') is not guaranteed to be + enough to hold a complete signal mask and therefore these functions + simply do not work in many situations. Use `sigprocmask' instead. */ + +/* Compute mask for signal SIG. */ # define sigmask(sig) __sigmask(sig) +/* Block signals in MASK, returning the old mask. */ extern int sigblock __P ((int __mask)); + +/* Set the mask of blocked signals to MASK, returning the old mask. */ extern int sigsetmask __P ((int __mask)); -/* This function is here only for compatibility. - Use `sigprocmask' instead. */ +/* Return currently selected signal mask. */ extern int siggetmask __P ((void)); #endif /* Use BSD. */ @@ -221,14 +220,11 @@ extern int sigorset __P ((sigset_t *__set, __const sigset_t *__left, # include <bits/sigaction.h> /* Get and/or change the set of blocked signals. */ -extern int __sigprocmask __P ((int __how, - __const sigset_t *__set, sigset_t *__oset)); extern int sigprocmask __P ((int __how, __const sigset_t *__set, sigset_t *__oset)); /* Change the set of blocked signals to SET, wait until a signal arrives, and restore the set of blocked signals. */ -extern int __sigsuspend __P ((__const sigset_t *__set)); extern int sigsuspend __P ((__const sigset_t *__set)); /* Get and/or set the action for signal SIG. */ @@ -242,24 +238,18 @@ extern int sigpending __P ((sigset_t *__set)); /* Select any of pending signals from SET or wait for any to arrive. */ -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)); @@ -295,8 +285,6 @@ struct sigvec If the SV_RESETHAND bit is set in `sv_flags', the handler for SIG will be reset to SIG_DFL before `sv_handler' is entered. If OVEC is non-NULL, it is filled in with the old information for SIG. */ -extern int __sigvec __P ((int __sig, __const struct sigvec *__vec, - struct sigvec *__ovec)); extern int sigvec __P ((int __sig, __const struct sigvec *__vec, struct sigvec *__ovec)); @@ -305,7 +293,6 @@ extern int sigvec __P ((int __sig, __const struct sigvec *__vec, # include <bits/sigcontext.h> /* Restore the state saved in SCP. */ -extern int __sigreturn __P ((struct sigcontext *__scp)); extern int sigreturn __P ((struct sigcontext *__scp)); #endif /* signal.h included and use BSD. */ @@ -331,8 +318,6 @@ extern int sigstack __P ((__const struct sigstack *__ss, /* Alternate signal handler stack interface. This interface should always be preferred over `sigstack'. */ -extern int __sigaltstack __P ((__const struct sigaltstack *__ss, - struct sigaltstack *__oss)); extern int sigaltstack __P ((__const struct sigaltstack *__ss, struct sigaltstack *__oss)); |