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version 1.1.1.1, 2012/02/21 22:57:48
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version 1.1.1.2, 2012/05/29 09:29:43
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| /* A GNU-like <signal.h>. |
/* A GNU-like <signal.h>. |
| |
|
| Copyright (C) 2006-2009 Free Software Foundation, Inc. | Copyright (C) 2006-2011 Free Software Foundation, Inc. |
| |
|
| This program is free software: you can redistribute it and/or modify |
This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
it under the terms of the GNU General Public License as published by |
|
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| #if __GNUC__ >= 3 |
#if __GNUC__ >= 3 |
| @PRAGMA_SYSTEM_HEADER@ |
@PRAGMA_SYSTEM_HEADER@ |
| #endif |
#endif |
| |
@PRAGMA_COLUMNS@ |
| |
|
| #if defined __need_sig_atomic_t || defined __need_sigset_t | #if defined __need_sig_atomic_t || defined __need_sigset_t || defined _GL_ALREADY_INCLUDING_SIGNAL_H || (defined _SIGNAL_H && !defined __SIZEOF_PTHREAD_MUTEX_T) |
| /* Special invocation convention inside glibc header files. */ | /* Special invocation convention: |
| | - Inside glibc header files. |
| | - On glibc systems we have a sequence of nested includes |
| | <signal.h> -> <ucontext.h> -> <signal.h>. |
| | In this situation, the functions are not yet declared, therefore we cannot |
| | provide the C++ aliases. |
| | - On glibc systems with GCC 4.3 we have a sequence of nested includes |
| | <csignal> -> </usr/include/signal.h> -> <sys/ucontext.h> -> <signal.h>. |
| | In this situation, some of the functions are not yet declared, therefore |
| | we cannot provide the C++ aliases. */ |
| |
|
| # @INCLUDE_NEXT@ @NEXT_SIGNAL_H@ |
# @INCLUDE_NEXT@ @NEXT_SIGNAL_H@ |
| |
|
| #else |
#else |
| /* Normal invocation convention. */ |
/* Normal invocation convention. */ |
| |
|
| #ifndef _GL_SIGNAL_H | #ifndef _@GUARD_PREFIX@_SIGNAL_H |
| |
|
| |
#define _GL_ALREADY_INCLUDING_SIGNAL_H |
| |
|
| |
/* Define pid_t, uid_t. |
| |
Also, mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. |
| |
On Solaris 10, <signal.h> includes <sys/types.h>, which eventually includes |
| |
us; so include <sys/types.h> now, before the second inclusion guard. */ |
| |
#include <sys/types.h> |
| |
|
| /* The include_next requires a split double-inclusion guard. */ |
/* The include_next requires a split double-inclusion guard. */ |
| #@INCLUDE_NEXT@ @NEXT_SIGNAL_H@ |
#@INCLUDE_NEXT@ @NEXT_SIGNAL_H@ |
| |
|
| #ifndef _GL_SIGNAL_H | #undef _GL_ALREADY_INCLUDING_SIGNAL_H |
| #define _GL_SIGNAL_H | |
| |
|
| /* The definition of GL_LINK_WARNING is copied here. */ | #ifndef _@GUARD_PREFIX@_SIGNAL_H |
| | #define _@GUARD_PREFIX@_SIGNAL_H |
| |
|
| /* Define pid_t, uid_t. | /* MacOS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6 declare |
| Also, mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */ | pthread_sigmask in <pthread.h>, not in <signal.h>. |
| #include <sys/types.h> | But avoid namespace pollution on glibc systems.*/ |
| | #if (@GNULIB_PTHREAD_SIGMASK@ || defined GNULIB_POSIXCHECK) \ |
| | && ((defined __APPLE__ && defined __MACH__) || defined __FreeBSD__ || defined __OpenBSD__ || defined __osf__ || defined __sun) \ |
| | && ! defined __GLIBC__ |
| | # include <pthread.h> |
| | #endif |
| |
|
| |
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
| |
|
| |
/* The definition of _GL_ARG_NONNULL is copied here. */ |
| |
|
| |
/* The definition of _GL_WARN_ON_USE is copied here. */ |
| |
|
| /* On AIX, sig_atomic_t already includes volatile. C99 requires that |
/* On AIX, sig_atomic_t already includes volatile. C99 requires that |
| 'volatile sig_atomic_t' ignore the extra modifier, but C89 did not. |
'volatile sig_atomic_t' ignore the extra modifier, but C89 did not. |
| Hence, redefine this to a non-volatile type as needed. */ |
Hence, redefine this to a non-volatile type as needed. */ |
| #if ! @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@ |
#if ! @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@ |
| |
# if !GNULIB_defined_sig_atomic_t |
| typedef int rpl_sig_atomic_t; |
typedef int rpl_sig_atomic_t; |
| # undef sig_atomic_t | # undef sig_atomic_t |
| # define sig_atomic_t rpl_sig_atomic_t | # define sig_atomic_t rpl_sig_atomic_t |
| | # define GNULIB_defined_sig_atomic_t 1 |
| | # endif |
| #endif |
#endif |
| |
|
| #ifdef __cplusplus | /* A set or mask of signals. */ |
| | #if !@HAVE_SIGSET_T@ |
| | # if !GNULIB_defined_sigset_t |
| | typedef unsigned int sigset_t; |
| | # define GNULIB_defined_sigset_t 1 |
| | # endif |
| | #endif |
| | |
| | /* Define sighandler_t, the type of signal handlers. A GNU extension. */ |
| | #if !@HAVE_SIGHANDLER_T@ |
| | # ifdef __cplusplus |
| extern "C" { |
extern "C" { |
| |
# endif |
| |
# if !GNULIB_defined_sighandler_t |
| |
typedef void (*sighandler_t) (int); |
| |
# define GNULIB_defined_sighandler_t 1 |
| |
# endif |
| |
# ifdef __cplusplus |
| |
} |
| |
# endif |
| #endif |
#endif |
| |
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| |
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|
Line 66 extern "C" {
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Line 116 extern "C" {
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| #endif |
#endif |
| |
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| |
|
| #if !@HAVE_POSIX_SIGNALBLOCKING@ |
|
| |
|
| /* Maximum signal number + 1. */ |
/* Maximum signal number + 1. */ |
| # ifndef NSIG | #ifndef NSIG |
| | # if defined __TANDEM |
| # define NSIG 32 |
# define NSIG 32 |
| # endif |
# endif |
| |
#endif |
| |
|
| |
|
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#if @GNULIB_PTHREAD_SIGMASK@ |
| |
# if @REPLACE_PTHREAD_SIGMASK@ |
| |
# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| |
# undef pthread_sigmask |
| |
# define pthread_sigmask rpl_pthread_sigmask |
| |
# endif |
| |
_GL_FUNCDECL_RPL (pthread_sigmask, int, |
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(int how, const sigset_t *new_mask, sigset_t *old_mask)); |
| |
_GL_CXXALIAS_RPL (pthread_sigmask, int, |
| |
(int how, const sigset_t *new_mask, sigset_t *old_mask)); |
| |
# else |
| |
# if !@HAVE_PTHREAD_SIGMASK@ |
| |
_GL_FUNCDECL_SYS (pthread_sigmask, int, |
| |
(int how, const sigset_t *new_mask, sigset_t *old_mask)); |
| |
# endif |
| |
_GL_CXXALIAS_SYS (pthread_sigmask, int, |
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(int how, const sigset_t *new_mask, sigset_t *old_mask)); |
| |
# endif |
| |
_GL_CXXALIASWARN (pthread_sigmask); |
| |
#elif defined GNULIB_POSIXCHECK |
| |
# undef pthread_sigmask |
| |
# if HAVE_RAW_DECL_PTHREAD_SIGMASK |
| |
_GL_WARN_ON_USE (pthread_sigmask, "pthread_sigmask is not portable - " |
| |
"use gnulib module pthread_sigmask for portability"); |
| |
# endif |
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#endif |
| |
|
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|
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#if @GNULIB_SIGPROCMASK@ |
| |
# if !@HAVE_POSIX_SIGNALBLOCKING@ |
| |
|
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/* Maximum signal number + 1. */ |
| |
# ifndef NSIG |
| |
# define NSIG 32 |
| |
# endif |
| |
|
| /* This code supports only 32 signals. */ |
/* This code supports only 32 signals. */ |
| typedef int verify_NSIG_constraint[2 * (NSIG <= 32) - 1]; | # if !GNULIB_defined_verify_NSIG_constraint |
| | typedef int verify_NSIG_constraint[NSIG <= 32 ? 1 : -1]; |
| | # define GNULIB_defined_verify_NSIG_constraint 1 |
| | # endif |
| |
|
| /* A set or mask of signals. */ |
|
| # if !@HAVE_SIGSET_T@ |
|
| typedef unsigned int sigset_t; |
|
| # endif |
# endif |
| |
|
| /* Test whether a given signal is contained in a signal set. */ |
/* Test whether a given signal is contained in a signal set. */ |
| extern int sigismember (const sigset_t *set, int sig); | # if @HAVE_POSIX_SIGNALBLOCKING@ |
| | /* This function is defined as a macro on MacOS X. */ |
| | # if defined __cplusplus && defined GNULIB_NAMESPACE |
| | # undef sigismember |
| | # endif |
| | # else |
| | _GL_FUNCDECL_SYS (sigismember, int, (const sigset_t *set, int sig) |
| | _GL_ARG_NONNULL ((1))); |
| | # endif |
| | _GL_CXXALIAS_SYS (sigismember, int, (const sigset_t *set, int sig)); |
| | _GL_CXXALIASWARN (sigismember); |
| |
|
| /* Initialize a signal set to the empty set. */ |
/* Initialize a signal set to the empty set. */ |
| extern int sigemptyset (sigset_t *set); | # if @HAVE_POSIX_SIGNALBLOCKING@ |
| | /* This function is defined as a macro on MacOS X. */ |
| | # if defined __cplusplus && defined GNULIB_NAMESPACE |
| | # undef sigemptyset |
| | # endif |
| | # else |
| | _GL_FUNCDECL_SYS (sigemptyset, int, (sigset_t *set) _GL_ARG_NONNULL ((1))); |
| | # endif |
| | _GL_CXXALIAS_SYS (sigemptyset, int, (sigset_t *set)); |
| | _GL_CXXALIASWARN (sigemptyset); |
| |
|
| /* Add a signal to a signal set. */ |
/* Add a signal to a signal set. */ |
| extern int sigaddset (sigset_t *set, int sig); | # if @HAVE_POSIX_SIGNALBLOCKING@ |
| | /* This function is defined as a macro on MacOS X. */ |
| | # if defined __cplusplus && defined GNULIB_NAMESPACE |
| | # undef sigaddset |
| | # endif |
| | # else |
| | _GL_FUNCDECL_SYS (sigaddset, int, (sigset_t *set, int sig) |
| | _GL_ARG_NONNULL ((1))); |
| | # endif |
| | _GL_CXXALIAS_SYS (sigaddset, int, (sigset_t *set, int sig)); |
| | _GL_CXXALIASWARN (sigaddset); |
| |
|
| /* Remove a signal from a signal set. */ |
/* Remove a signal from a signal set. */ |
| extern int sigdelset (sigset_t *set, int sig); | # if @HAVE_POSIX_SIGNALBLOCKING@ |
| | /* This function is defined as a macro on MacOS X. */ |
| | # if defined __cplusplus && defined GNULIB_NAMESPACE |
| | # undef sigdelset |
| | # endif |
| | # else |
| | _GL_FUNCDECL_SYS (sigdelset, int, (sigset_t *set, int sig) |
| | _GL_ARG_NONNULL ((1))); |
| | # endif |
| | _GL_CXXALIAS_SYS (sigdelset, int, (sigset_t *set, int sig)); |
| | _GL_CXXALIASWARN (sigdelset); |
| |
|
| /* Fill a signal set with all possible signals. */ |
/* Fill a signal set with all possible signals. */ |
| extern int sigfillset (sigset_t *set); | # if @HAVE_POSIX_SIGNALBLOCKING@ |
| | /* This function is defined as a macro on MacOS X. */ |
| | # if defined __cplusplus && defined GNULIB_NAMESPACE |
| | # undef sigfillset |
| | # endif |
| | # else |
| | _GL_FUNCDECL_SYS (sigfillset, int, (sigset_t *set) _GL_ARG_NONNULL ((1))); |
| | # endif |
| | _GL_CXXALIAS_SYS (sigfillset, int, (sigset_t *set)); |
| | _GL_CXXALIASWARN (sigfillset); |
| |
|
| /* Return the set of those blocked signals that are pending. */ |
/* Return the set of those blocked signals that are pending. */ |
| extern int sigpending (sigset_t *set); | # if !@HAVE_POSIX_SIGNALBLOCKING@ |
| | _GL_FUNCDECL_SYS (sigpending, int, (sigset_t *set) _GL_ARG_NONNULL ((1))); |
| | # endif |
| | _GL_CXXALIAS_SYS (sigpending, int, (sigset_t *set)); |
| | _GL_CXXALIASWARN (sigpending); |
| |
|
| /* If OLD_SET is not NULL, put the current set of blocked signals in *OLD_SET. |
/* If OLD_SET is not NULL, put the current set of blocked signals in *OLD_SET. |
| Then, if SET is not NULL, affect the current set of blocked signals by |
Then, if SET is not NULL, affect the current set of blocked signals by |
| combining it with *SET as indicated in OPERATION. |
combining it with *SET as indicated in OPERATION. |
| In this implementation, you are not allowed to change a signal handler |
In this implementation, you are not allowed to change a signal handler |
| while the signal is blocked. */ |
while the signal is blocked. */ |
| # define SIG_BLOCK 0 /* blocked_set = blocked_set | *set; */ | # if !@HAVE_POSIX_SIGNALBLOCKING@ |
| # define SIG_SETMASK 1 /* blocked_set = *set; */ | # define SIG_BLOCK 0 /* blocked_set = blocked_set | *set; */ |
| # define SIG_UNBLOCK 2 /* blocked_set = blocked_set & ~*set; */ | # define SIG_SETMASK 1 /* blocked_set = *set; */ |
| extern int sigprocmask (int operation, const sigset_t *set, sigset_t *old_set); | # define SIG_UNBLOCK 2 /* blocked_set = blocked_set & ~*set; */ |
| | _GL_FUNCDECL_SYS (sigprocmask, int, |
| | (int operation, const sigset_t *set, sigset_t *old_set)); |
| | # endif |
| | _GL_CXXALIAS_SYS (sigprocmask, int, |
| | (int operation, const sigset_t *set, sigset_t *old_set)); |
| | _GL_CXXALIASWARN (sigprocmask); |
| |
|
| # define signal rpl_signal |
|
| /* Install the handler FUNC for signal SIG, and return the previous |
/* Install the handler FUNC for signal SIG, and return the previous |
| handler. */ |
handler. */ |
| extern void (*signal (int sig, void (*func) (int))) (int); | # ifdef __cplusplus |
| | extern "C" { |
| | # endif |
| | # if !GNULIB_defined_function_taking_int_returning_void_t |
| | typedef void (*_gl_function_taking_int_returning_void_t) (int); |
| | # define GNULIB_defined_function_taking_int_returning_void_t 1 |
| | # endif |
| | # ifdef __cplusplus |
| | } |
| | # endif |
| | # if !@HAVE_POSIX_SIGNALBLOCKING@ |
| | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| | # define signal rpl_signal |
| | # endif |
| | _GL_FUNCDECL_RPL (signal, _gl_function_taking_int_returning_void_t, |
| | (int sig, _gl_function_taking_int_returning_void_t func)); |
| | _GL_CXXALIAS_RPL (signal, _gl_function_taking_int_returning_void_t, |
| | (int sig, _gl_function_taking_int_returning_void_t func)); |
| | # else |
| | _GL_CXXALIAS_SYS (signal, _gl_function_taking_int_returning_void_t, |
| | (int sig, _gl_function_taking_int_returning_void_t func)); |
| | # endif |
| | _GL_CXXALIASWARN (signal); |
| |
|
| # if GNULIB_defined_SIGPIPE |
|
| |
|
| /* Raise signal SIG. */ |
/* Raise signal SIG. */ |
| # undef raise | # if !@HAVE_POSIX_SIGNALBLOCKING@ && GNULIB_defined_SIGPIPE |
| # define raise rpl_raise | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| extern int raise (int sig); | |
| | # define raise rpl_raise |
| | # endif |
| | _GL_FUNCDECL_RPL (raise, int, (int sig)); |
| | _GL_CXXALIAS_RPL (raise, int, (int sig)); |
| | # else |
| | _GL_CXXALIAS_SYS (raise, int, (int sig)); |
| | # endif |
| | _GL_CXXALIASWARN (raise); |
| |
|
| |
#elif defined GNULIB_POSIXCHECK |
| |
# undef sigaddset |
| |
# if HAVE_RAW_DECL_SIGADDSET |
| |
_GL_WARN_ON_USE (sigaddset, "sigaddset is unportable - " |
| |
"use the gnulib module sigprocmask for portability"); |
| # endif |
# endif |
| |
# undef sigdelset |
| |
# if HAVE_RAW_DECL_SIGDELSET |
| |
_GL_WARN_ON_USE (sigdelset, "sigdelset is unportable - " |
| |
"use the gnulib module sigprocmask for portability"); |
| |
# endif |
| |
# undef sigemptyset |
| |
# if HAVE_RAW_DECL_SIGEMPTYSET |
| |
_GL_WARN_ON_USE (sigemptyset, "sigemptyset is unportable - " |
| |
"use the gnulib module sigprocmask for portability"); |
| |
# endif |
| |
# undef sigfillset |
| |
# if HAVE_RAW_DECL_SIGFILLSET |
| |
_GL_WARN_ON_USE (sigfillset, "sigfillset is unportable - " |
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"use the gnulib module sigprocmask for portability"); |
| |
# endif |
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# undef sigismember |
| |
# if HAVE_RAW_DECL_SIGISMEMBER |
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_GL_WARN_ON_USE (sigismember, "sigismember is unportable - " |
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"use the gnulib module sigprocmask for portability"); |
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# endif |
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# undef sigpending |
| |
# if HAVE_RAW_DECL_SIGPENDING |
| |
_GL_WARN_ON_USE (sigpending, "sigpending is unportable - " |
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"use the gnulib module sigprocmask for portability"); |
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# endif |
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# undef sigprocmask |
| |
# if HAVE_RAW_DECL_SIGPROCMASK |
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_GL_WARN_ON_USE (sigprocmask, "sigprocmask is unportable - " |
| |
"use the gnulib module sigprocmask for portability"); |
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# endif |
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#endif /* @GNULIB_SIGPROCMASK@ */ |
| |
|
| #endif /* !@HAVE_POSIX_SIGNALBLOCKING@ */ |
|
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|
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#if @GNULIB_SIGACTION@ |
| |
# if !@HAVE_SIGACTION@ |
| |
|
| #if !@HAVE_SIGACTION@ | # if !@HAVE_SIGINFO_T@ |
| |
|
| # if !@HAVE_SIGINFO_T@ | # if !GNULIB_defined_siginfo_types |
| | |
| /* Present to allow compilation, but unsupported by gnulib. */ |
/* Present to allow compilation, but unsupported by gnulib. */ |
| union sigval |
union sigval |
| { |
{ |
|
Line 150 struct siginfo_t
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Line 360 struct siginfo_t
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| union sigval si_value; |
union sigval si_value; |
| }; |
}; |
| typedef struct siginfo_t siginfo_t; |
typedef struct siginfo_t siginfo_t; |
| # endif /* !@HAVE_SIGINFO_T@ */ |
|
| |
|
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# define GNULIB_defined_siginfo_types 1 |
| |
# endif |
| |
|
| |
# endif /* !@HAVE_SIGINFO_T@ */ |
| |
|
| /* We assume that platforms which lack the sigaction() function also lack |
/* We assume that platforms which lack the sigaction() function also lack |
| the 'struct sigaction' type, and vice versa. */ |
the 'struct sigaction' type, and vice versa. */ |
| |
|
| |
# if !GNULIB_defined_struct_sigaction |
| |
|
| struct sigaction |
struct sigaction |
| { |
{ |
| union |
union |
|
Line 170 struct sigaction
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Line 386 struct sigaction
|
| /* Not all POSIX flags are supported. */ |
/* Not all POSIX flags are supported. */ |
| int sa_flags; |
int sa_flags; |
| }; |
}; |
| # define sa_handler _sa_func._sa_handler | # define sa_handler _sa_func._sa_handler |
| # define sa_sigaction _sa_func._sa_sigaction | /* Unsupported flags are not present. */ |
| /* Unsupported flags are not present. */ |
/* Unsupported flags are not present. */ |
| # define SA_RESETHAND 1 | # define SA_RESETHAND 1 |
| # define SA_NODEFER 2 | # define SA_NODEFER 2 |
| # define SA_RESTART 4 | |
| |
|
| extern int sigaction (int, const struct sigaction *restrict, | # define GNULIB_defined_struct_sigaction 1 |
| struct sigaction *restrict); | # endif |
| |
|
| #elif !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@ | _GL_FUNCDECL_SYS (sigaction, int, (int, const struct sigaction *restrict, |
| | struct sigaction *restrict)); |
| |
|
| # define sa_sigaction sa_handler | # elif !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@ |
| |
|
| #endif /* !@HAVE_SIGACTION@, !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@ */ | # define sa_sigaction sa_handler |
| |
|
| |
# endif /* !@HAVE_SIGACTION@, !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@ */ |
| |
|
| |
_GL_CXXALIAS_SYS (sigaction, int, (int, const struct sigaction *restrict, |
| |
struct sigaction *restrict)); |
| |
_GL_CXXALIASWARN (sigaction); |
| |
|
| |
#elif defined GNULIB_POSIXCHECK |
| |
# undef sigaction |
| |
# if HAVE_RAW_DECL_SIGACTION |
| |
_GL_WARN_ON_USE (sigaction, "sigaction is unportable - " |
| |
"use the gnulib module sigaction for portability"); |
| |
# endif |
| |
#endif |
| |
|
| /* Some systems don't have SA_NODEFER. */ |
/* Some systems don't have SA_NODEFER. */ |
| #ifndef SA_NODEFER |
#ifndef SA_NODEFER |
| # define SA_NODEFER 0 |
# define SA_NODEFER 0 |
| #endif |
#endif |
| |
|
| |
|
| #ifdef __cplusplus | #endif /* _@GUARD_PREFIX@_SIGNAL_H */ |
| } | #endif /* _@GUARD_PREFIX@_SIGNAL_H */ |
| #endif | |
| |
| #endif /* _GL_SIGNAL_H */ | |
| #endif /* _GL_SIGNAL_H */ | |
| #endif |
#endif |