diff options
Diffstat (limited to 'signal/signal.h')
| -rw-r--r-- | signal/signal.h | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/signal/signal.h b/signal/signal.h index f0cd50e8e3..8263d3a84f 100644 --- a/signal/signal.h +++ b/signal/signal.h @@ -142,8 +142,11 @@ extern void psignal (int __sig, __const char *__s) __THROW; BSD definition defines the argument as a mask of the signal, while the more modern interface in X/Open defines it as the signal number. We go with the BSD version unless the user explicitly - selects the X/Open version. */ -extern int __sigpause (int __sig_or_mask, int __is_sig) __THROW; + selects the X/Open version. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int __sigpause (int __sig_or_mask, int __is_sig); #ifdef __USE_BSD /* Set the mask of blocked signals to MASK, @@ -153,7 +156,7 @@ extern int sigpause (int __mask) __THROW; #else # ifdef __USE_XOPEN # ifdef __GNUC__ -extern int sigpause (int __sig) __THROW __asm__ ("__xpg_sigpause"); +extern int sigpause (int __sig) __asm__ ("__xpg_sigpause"); # endif /* Remove a signal from the signal mask and suspend the process. */ # define sigpause(sig) __sigpause ((sig), 1) @@ -242,8 +245,11 @@ extern int sigprocmask (int __how, __const sigset_t *__restrict __set, sigset_t *__restrict __oset) __THROW; /* Change the set of blocked signals to SET, - wait until a signal arrives, and restore the set of blocked signals. */ -extern int sigsuspend (__const sigset_t *__set) __THROW; + wait until a signal arrives, and restore the set of blocked signals. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int sigsuspend (__const sigset_t *__set); /* Get and/or set the action for signal SIG. */ extern int sigaction (int __sig, __const struct sigaction *__restrict __act, @@ -253,21 +259,28 @@ extern int sigaction (int __sig, __const struct sigaction *__restrict __act, extern int sigpending (sigset_t *__set) __THROW; -/* Select any of pending signals from SET or wait for any to arrive. */ -extern int sigwait (__const sigset_t *__restrict __set, int *__restrict __sig) - __THROW; +/* 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); # ifdef __USE_POSIX199309 -/* Select any of pending signals from SET and place information in INFO. */ +/* Select any of pending signals from SET and place information in INFO. + + This function is a cancellation point and therefore not marked with + __THROW. */ extern int sigwaitinfo (__const sigset_t *__restrict __set, - siginfo_t *__restrict __info) __THROW; + siginfo_t *__restrict __info); /* Select any of pending signals from SET and place information in INFO. - Wait the time specified by TIMEOUT if no signal is pending. */ + Wait the time specified by TIMEOUT if no signal is pending. + + This function is a cancellation point and therefore not marked with + __THROW. */ extern int sigtimedwait (__const sigset_t *__restrict __set, siginfo_t *__restrict __info, - __const struct timespec *__restrict __timeout) - __THROW; + __const struct timespec *__restrict __timeout); /* Send signal SIG to the process PID. Associate data in VAL with the signal. */ |