diff options
Diffstat (limited to 'signal')
| -rw-r--r-- | signal/signal.h | 44 |
1 files changed, 25 insertions, 19 deletions
diff --git a/signal/signal.h b/signal/signal.h index 76c0f67a8f..cff2ebfb93 100644 --- a/signal/signal.h +++ b/signal/signal.h @@ -78,10 +78,10 @@ typedef void (*__sighandler_t) (int); the additional function `sysv_signal' when X/Open compatibility is requested. */ extern __sighandler_t __sysv_signal (int __sig, __sighandler_t __handler) - __THROW; + __THROW __nonnull ((2)); #ifdef __USE_GNU extern __sighandler_t sysv_signal (int __sig, __sighandler_t __handler) - __THROW; + __THROW __nonnull ((2)); #endif /* Set the handler for the signal SIG to HANDLER, returning the old @@ -89,13 +89,14 @@ extern __sighandler_t sysv_signal (int __sig, __sighandler_t __handler) By default `signal' has the BSD semantic. */ __BEGIN_NAMESPACE_STD #ifdef __USE_BSD -extern __sighandler_t signal (int __sig, __sighandler_t __handler) __THROW; +extern __sighandler_t signal (int __sig, __sighandler_t __handler) + __THROW __nonnull ((2)); #else /* Make sure the used `signal' implementation is the SVID version. */ # ifdef __REDIRECT_NTH extern __sighandler_t __REDIRECT_NTH (signal, (int __sig, __sighandler_t __handler), - __sysv_signal); + __sysv_signal) __nonnull ((2)); # else # define signal __sysv_signal # endif @@ -105,7 +106,8 @@ __END_NAMESPACE_STD #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 (int __sig, __sighandler_t __handler) __THROW; +extern __sighandler_t bsd_signal (int __sig, __sighandler_t __handler) + __THROW __nonnull ((2)); #endif /* Send signal SIG to process number PID. If PID is zero, @@ -129,7 +131,8 @@ __END_NAMESPACE_STD #ifdef __USE_SVID /* SVID names for the same things. */ -extern __sighandler_t ssignal (int __sig, __sighandler_t __handler) __THROW; +extern __sighandler_t ssignal (int __sig, __sighandler_t __handler) + __THROW __nonnull ((2)); extern int gsignal (int __sig) __THROW; #endif /* Use SVID. */ @@ -210,31 +213,32 @@ typedef __sighandler_t sig_t; # endif /* Clear all signals from SET. */ -extern int sigemptyset (sigset_t *__set) __THROW; +extern int sigemptyset (sigset_t *__set) __THROW __nonnull ((1)); /* Set all signals in SET. */ -extern int sigfillset (sigset_t *__set) __THROW; +extern int sigfillset (sigset_t *__set) __THROW __nonnull ((1)); /* Add SIGNO to SET. */ -extern int sigaddset (sigset_t *__set, int __signo) __THROW; +extern int sigaddset (sigset_t *__set, int __signo) __THROW __nonnull ((1)); /* Remove SIGNO from SET. */ -extern int sigdelset (sigset_t *__set, int __signo) __THROW; +extern int sigdelset (sigset_t *__set, int __signo) __THROW __nonnull ((1)); /* Return 1 if SIGNO is in SET, 0 if not. */ -extern int sigismember (__const sigset_t *__set, int __signo) __THROW; +extern int sigismember (__const sigset_t *__set, int __signo) + __THROW __nonnull ((1)); # ifdef __USE_GNU /* Return non-empty value is SET is not empty. */ -extern int sigisemptyset (__const sigset_t *__set) __THROW; +extern int sigisemptyset (__const sigset_t *__set) __THROW __nonnull ((1)); /* Build new signal set by combining the two inputs set using logical AND. */ extern int sigandset (sigset_t *__set, __const sigset_t *__left, - __const sigset_t *__right) __THROW; + __const sigset_t *__right) __THROW __nonnull ((1, 2, 3)); /* Build new signal set by combining the two inputs set using logical OR. */ extern int sigorset (sigset_t *__set, __const sigset_t *__left, - __const sigset_t *__right) __THROW; + __const sigset_t *__right) __THROW __nonnull ((1, 2, 3)); # endif /* GNU */ /* Get the system-specific definitions of `struct sigaction' @@ -250,21 +254,22 @@ extern int sigprocmask (int __how, __const sigset_t *__restrict __set, This function is a cancellation point and therefore not marked with __THROW. */ -extern int sigsuspend (__const sigset_t *__set); +extern int sigsuspend (__const sigset_t *__set) __nonnull ((1)); /* Get and/or set the action for signal SIG. */ extern int sigaction (int __sig, __const struct sigaction *__restrict __act, struct sigaction *__restrict __oact) __THROW; /* Put in SET all signals that are blocked and waiting to be delivered. */ -extern int sigpending (sigset_t *__set) __THROW; +extern int sigpending (sigset_t *__set) __THROW __nonnull ((1)); /* Select any of pending signals from SET or wait for any to arrive. This function is a cancellation point and therefore not marked with __THROW. */ -extern int sigwait (__const sigset_t *__restrict __set, int *__restrict __sig); +extern int sigwait (__const sigset_t *__restrict __set, int *__restrict __sig) + __nonnull ((1, 2)); # ifdef __USE_POSIX199309 /* Select any of pending signals from SET and place information in INFO. @@ -272,7 +277,7 @@ extern int sigwait (__const sigset_t *__restrict __set, int *__restrict __sig); This function is a cancellation point and therefore not marked with __THROW. */ extern int sigwaitinfo (__const sigset_t *__restrict __set, - siginfo_t *__restrict __info); + siginfo_t *__restrict __info) __nonnull ((1)); /* Select any of pending signals from SET and place information in INFO. Wait the time specified by TIMEOUT if no signal is pending. @@ -281,7 +286,8 @@ extern int sigwaitinfo (__const sigset_t *__restrict __set, __THROW. */ extern int sigtimedwait (__const sigset_t *__restrict __set, siginfo_t *__restrict __info, - __const struct timespec *__restrict __timeout); + __const struct timespec *__restrict __timeout) + __nonnull ((1)); /* Send signal SIG to the process PID. Associate data in VAL with the signal. */ |