-/* Copyright (C) 1991-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2004,2007,2009,2010,2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
/*
* ISO C99 Standard: 7.14 Signal handling <signal.h>
# endif
#endif /* Unix98 */
+#ifdef __USE_POSIX199309
+/* We need `struct timespec' later on. */
+# define __need_timespec
+# include <time.h>
+#endif
+
+#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
+/* Get the `siginfo_t' type plus the needed symbols. */
+# include <bits/siginfo.h>
+#endif
+
/* Type of a signal handler. */
typedef void (*__sighandler_t) (int);
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;
#else
/* Make sure the used `signal' implementation is the SVID version. */
# ifdef __REDIRECT_NTH
#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;
#endif
/* Send signal SIG to process number PID. If PID is zero,
#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;
extern int gsignal (int __sig) __THROW;
#endif /* Use SVID. */
-#ifdef __USE_MISC
+#if defined __USE_MISC || defined __USE_XOPEN2K
/* Print a message describing the meaning of the given signal number. */
-extern void psignal (int __sig, __const char *__s);
-#endif /* Use misc. */
+extern void psignal (int __sig, const char *__s);
+#endif /* Use misc or POSIX 2008. */
+
+#ifdef __USE_XOPEN2K
+/* Print a message describing the meaning of the given signal information. */
+extern void psiginfo (const siginfo_t *__pinfo, const char *__s);
+#endif /* POSIX 2008. */
+
/* The `sigpause' function has two different interfaces. The original
#ifdef __USE_POSIX
-# ifdef __USE_POSIX199309
-/* We need `struct timespec' later on. */
-# define __need_timespec
-# include <time.h>
-
-/* Get the `siginfo_t' type plus the needed symbols. */
-# include <bits/siginfo.h>
-# 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;
+extern int sigandset (sigset_t *__set, const sigset_t *__left,
+ 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;
+extern int sigorset (sigset_t *__set, const sigset_t *__left,
+ const sigset_t *__right) __THROW __nonnull ((1, 2, 3));
# endif /* GNU */
/* Get the system-specific definitions of `struct sigaction'
# include <bits/sigaction.h>
/* Get and/or change the set of blocked signals. */
-extern int sigprocmask (int __how, __const sigset_t *__restrict __set,
+extern int sigprocmask (int __how, const sigset_t *__restrict __set,
sigset_t *__restrict __oset) __THROW;
/* Change the set of blocked signals to 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,
+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.
This function is a cancellation point and therefore not marked with
__THROW. */
-extern int sigwaitinfo (__const sigset_t *__restrict __set,
- siginfo_t *__restrict __info);
+extern int sigwaitinfo (const sigset_t *__restrict __set,
+ 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.
This function is a cancellation point and therefore not marked with
__THROW. */
-extern int sigtimedwait (__const sigset_t *__restrict __set,
+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. */
-extern int sigqueue (__pid_t __pid, int __sig, __const union sigval __val)
+extern int sigqueue (__pid_t __pid, int __sig, const union sigval __val)
__THROW;
# endif /* Use POSIX 199306. */
/* Names of the signals. This variable exists only for compatibility.
Use `strsignal' instead (see <string.h>). */
-extern __const char *__const _sys_siglist[_NSIG];
-extern __const char *__const sys_siglist[_NSIG];
+extern const char *const _sys_siglist[_NSIG];
+extern const char *const sys_siglist[_NSIG];
/* Structure passed to `sigvec'. */
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 (int __sig, __const struct sigvec *__vec,
+extern int sigvec (int __sig, const struct sigvec *__vec,
struct sigvec *__ovec) __THROW;
#endif /* use BSD. */
-#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
+# define __need_size_t
+# include <stddef.h>
/* If INTERRUPT is nonzero, make signal SIG interrupt system calls
(causing them to fail with EINTR); if INTERRUPT is zero, make system
extern int siginterrupt (int __sig, int __interrupt) __THROW;
# include <bits/sigstack.h>
-# ifdef __USE_XOPEN
+# if defined __USE_XOPEN || defined __USE_XOPEN2K8
/* This will define `ucontext_t' and `mcontext_t'. */
# include <sys/ucontext.h>
# endif
/* Alternate signal handler stack interface.
This interface should always be preferred over `sigstack'. */
-extern int sigaltstack (__const struct sigaltstack *__restrict __ss,
+extern int sigaltstack (const struct sigaltstack *__restrict __ss,
struct sigaltstack *__restrict __oss) __THROW;
#endif /* use BSD or X/Open Unix. */
projects / platform / upstream / glibc.git / blobdiff