/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ /* A GNU-like . Copyright (C) 2006-2016 Free Software Foundation, Inc. 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 the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #if __GNUC__ >= 3 #pragma GCC system_header #endif #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. - On glibc systems we have a sequence of nested includes -> -> . 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 -> -> -> . In this situation, some of the functions are not yet declared, therefore we cannot provide the C++ aliases. */ # include_next #else /* Normal invocation convention. */ #ifndef _GL_M4_SIGNAL_H #define _GL_ALREADY_INCLUDING_SIGNAL_H /* Define pid_t, uid_t. Also, mingw defines sigset_t not in , but in . On Solaris 10, includes , which eventually includes us; so include now, before the second inclusion guard. */ #include /* The include_next requires a split double-inclusion guard. */ #include_next #undef _GL_ALREADY_INCLUDING_SIGNAL_H #ifndef _GL_M4_SIGNAL_H #define _GL_M4_SIGNAL_H /* Mac OS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6, Android declare pthread_sigmask in , not in . But avoid namespace pollution on glibc systems.*/ #if (0 || defined GNULIB_POSIXCHECK) \ && ((defined __APPLE__ && defined __MACH__) \ || defined __FreeBSD__ || defined __OpenBSD__ || defined __osf__ \ || defined __sun || defined __ANDROID__) \ && ! defined __GLIBC__ # include #endif /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ #ifndef _GL_CXXDEFS_H #define _GL_CXXDEFS_H /* Begin/end the GNULIB_NAMESPACE namespace. */ #if defined __cplusplus && defined GNULIB_NAMESPACE # define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE { # define _GL_END_NAMESPACE } #else # define _GL_BEGIN_NAMESPACE # define _GL_END_NAMESPACE #endif /* The three most frequent use cases of these macros are: * For providing a substitute for a function that is missing on some platforms, but is declared and works fine on the platforms on which it exists: #if @GNULIB_FOO@ # if !@HAVE_FOO@ _GL_FUNCDECL_SYS (foo, ...); # endif _GL_CXXALIAS_SYS (foo, ...); _GL_CXXALIASWARN (foo); #elif defined GNULIB_POSIXCHECK ... #endif * For providing a replacement for a function that exists on all platforms, but is broken/insufficient and needs to be replaced on some platforms: #if @GNULIB_FOO@ # if @REPLACE_FOO@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef foo # define foo rpl_foo # endif _GL_FUNCDECL_RPL (foo, ...); _GL_CXXALIAS_RPL (foo, ...); # else _GL_CXXALIAS_SYS (foo, ...); # endif _GL_CXXALIASWARN (foo); #elif defined GNULIB_POSIXCHECK ... #endif * For providing a replacement for a function that exists on some platforms but is broken/insufficient and needs to be replaced on some of them and is additionally either missing or undeclared on some other platforms: #if @GNULIB_FOO@ # if @REPLACE_FOO@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef foo # define foo rpl_foo # endif _GL_FUNCDECL_RPL (foo, ...); _GL_CXXALIAS_RPL (foo, ...); # else # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ _GL_FUNCDECL_SYS (foo, ...); # endif _GL_CXXALIAS_SYS (foo, ...); # endif _GL_CXXALIASWARN (foo); #elif defined GNULIB_POSIXCHECK ... #endif */ /* _GL_EXTERN_C declaration; performs the declaration with C linkage. */ #if defined __cplusplus # define _GL_EXTERN_C extern "C" #else # define _GL_EXTERN_C extern #endif /* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); declares a replacement function, named rpl_func, with the given prototype, consisting of return type, parameters, and attributes. Example: _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) _GL_ARG_NONNULL ((1))); */ #define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) #define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ _GL_EXTERN_C rettype rpl_func parameters_and_attributes /* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); declares the system function, named func, with the given prototype, consisting of return type, parameters, and attributes. Example: _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) _GL_ARG_NONNULL ((1))); */ #define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ _GL_EXTERN_C rettype func parameters_and_attributes /* _GL_CXXALIAS_RPL (func, rettype, parameters); declares a C++ alias called GNULIB_NAMESPACE::func that redirects to rpl_func, if GNULIB_NAMESPACE is defined. Example: _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); Wrapping rpl_func in an object with an inline conversion operator avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is actually used in the program. */ #define _GL_CXXALIAS_RPL(func,rettype,parameters) \ _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) #if defined __cplusplus && defined GNULIB_NAMESPACE # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ namespace GNULIB_NAMESPACE \ { \ static const struct _gl_ ## func ## _wrapper \ { \ typedef rettype (*type) parameters; \ \ inline operator type () const \ { \ return ::rpl_func; \ } \ } func = {}; \ } \ _GL_EXTERN_C int _gl_cxxalias_dummy #else # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ _GL_EXTERN_C int _gl_cxxalias_dummy #endif /* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); except that the C function rpl_func may have a slightly different declaration. A cast is used to silence the "invalid conversion" error that would otherwise occur. */ #if defined __cplusplus && defined GNULIB_NAMESPACE # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ namespace GNULIB_NAMESPACE \ { \ static const struct _gl_ ## func ## _wrapper \ { \ typedef rettype (*type) parameters; \ \ inline operator type () const \ { \ return reinterpret_cast(::rpl_func); \ } \ } func = {}; \ } \ _GL_EXTERN_C int _gl_cxxalias_dummy #else # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ _GL_EXTERN_C int _gl_cxxalias_dummy #endif /* _GL_CXXALIAS_SYS (func, rettype, parameters); declares a C++ alias called GNULIB_NAMESPACE::func that redirects to the system provided function func, if GNULIB_NAMESPACE is defined. Example: _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); Wrapping func in an object with an inline conversion operator avoids a reference to func unless GNULIB_NAMESPACE::func is actually used in the program. */ #if defined __cplusplus && defined GNULIB_NAMESPACE # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ namespace GNULIB_NAMESPACE \ { \ static const struct _gl_ ## func ## _wrapper \ { \ typedef rettype (*type) parameters; \ \ inline operator type () const \ { \ return ::func; \ } \ } func = {}; \ } \ _GL_EXTERN_C int _gl_cxxalias_dummy #else # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ _GL_EXTERN_C int _gl_cxxalias_dummy #endif /* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); is like _GL_CXXALIAS_SYS (func, rettype, parameters); except that the C function func may have a slightly different declaration. A cast is used to silence the "invalid conversion" error that would otherwise occur. */ #if defined __cplusplus && defined GNULIB_NAMESPACE # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ namespace GNULIB_NAMESPACE \ { \ static const struct _gl_ ## func ## _wrapper \ { \ typedef rettype (*type) parameters; \ \ inline operator type () const \ { \ return reinterpret_cast(::func); \ } \ } func = {}; \ } \ _GL_EXTERN_C int _gl_cxxalias_dummy #else # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ _GL_EXTERN_C int _gl_cxxalias_dummy #endif /* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); is like _GL_CXXALIAS_SYS (func, rettype, parameters); except that the C function is picked among a set of overloaded functions, namely the one with rettype2 and parameters2. Two consecutive casts are used to silence the "cannot find a match" and "invalid conversion" errors that would otherwise occur. */ #if defined __cplusplus && defined GNULIB_NAMESPACE /* The outer cast must be a reinterpret_cast. The inner cast: When the function is defined as a set of overloaded functions, it works as a static_cast<>, choosing the designated variant. When the function is defined as a single variant, it works as a reinterpret_cast<>. The parenthesized cast syntax works both ways. */ # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ namespace GNULIB_NAMESPACE \ { \ static const struct _gl_ ## func ## _wrapper \ { \ typedef rettype (*type) parameters; \ \ inline operator type () const \ { \ return reinterpret_cast((rettype2 (*) parameters2)(::func)); \ } \ } func = {}; \ } \ _GL_EXTERN_C int _gl_cxxalias_dummy #else # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ _GL_EXTERN_C int _gl_cxxalias_dummy #endif /* _GL_CXXALIASWARN (func); causes a warning to be emitted when ::func is used but not when GNULIB_NAMESPACE::func is used. func must be defined without overloaded variants. */ #if defined __cplusplus && defined GNULIB_NAMESPACE # define _GL_CXXALIASWARN(func) \ _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) # define _GL_CXXALIASWARN_1(func,namespace) \ _GL_CXXALIASWARN_2 (func, namespace) /* To work around GCC bug , we enable the warning only when not optimizing. */ # if !__OPTIMIZE__ # define _GL_CXXALIASWARN_2(func,namespace) \ _GL_WARN_ON_USE (func, \ "The symbol ::" #func " refers to the system function. " \ "Use " #namespace "::" #func " instead.") # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING # define _GL_CXXALIASWARN_2(func,namespace) \ extern __typeof__ (func) func # else # define _GL_CXXALIASWARN_2(func,namespace) \ _GL_EXTERN_C int _gl_cxxalias_dummy # endif #else # define _GL_CXXALIASWARN(func) \ _GL_EXTERN_C int _gl_cxxalias_dummy #endif /* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); causes a warning to be emitted when the given overloaded variant of ::func is used but not when GNULIB_NAMESPACE::func is used. */ #if defined __cplusplus && defined GNULIB_NAMESPACE # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ GNULIB_NAMESPACE) # define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) /* To work around GCC bug , we enable the warning only when not optimizing. */ # if !__OPTIMIZE__ # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ "The symbol ::" #func " refers to the system function. " \ "Use " #namespace "::" #func " instead.") # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ extern __typeof__ (func) func # else # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ _GL_EXTERN_C int _gl_cxxalias_dummy # endif #else # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ _GL_EXTERN_C int _gl_cxxalias_dummy #endif #endif /* _GL_CXXDEFS_H */ /* The definition of _GL_ARG_NONNULL is copied here. */ /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools that the values passed as arguments n, ..., m must be non-NULL pointers. n = 1 stands for the first argument, n = 2 for the second argument etc. */ #ifndef _GL_ARG_NONNULL # if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 # define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) # else # define _GL_ARG_NONNULL(params) # endif #endif /* The definition of _GL_WARN_ON_USE is copied here. */ #ifndef _GL_WARN_ON_USE # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) /* A compiler attribute is available in gcc versions 4.3.0 and later. */ # define _GL_WARN_ON_USE(function, message) \ extern __typeof__ (function) function __attribute__ ((__warning__ (message))) # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING /* Verify the existence of the function. */ # define _GL_WARN_ON_USE(function, message) \ extern __typeof__ (function) function # else /* Unsupported. */ # define _GL_WARN_ON_USE(function, message) \ _GL_WARN_EXTERN_C int _gl_warn_on_use # endif #endif /* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") is like _GL_WARN_ON_USE (function, "string"), except that the function is declared with the given prototype, consisting of return type, parameters, and attributes. This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does not work in this case. */ #ifndef _GL_WARN_ON_USE_CXX # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ extern rettype function parameters_and_attributes \ __attribute__ ((__warning__ (msg))) # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING /* Verify the existence of the function. */ # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ extern rettype function parameters_and_attributes # else /* Unsupported. */ # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ _GL_WARN_EXTERN_C int _gl_warn_on_use # endif #endif /* _GL_WARN_EXTERN_C declaration; performs the declaration with C linkage. */ #ifndef _GL_WARN_EXTERN_C # if defined __cplusplus # define _GL_WARN_EXTERN_C extern "C" # else # define _GL_WARN_EXTERN_C extern # endif #endif /* On AIX, sig_atomic_t already includes volatile. C99 requires that 'volatile sig_atomic_t' ignore the extra modifier, but C89 did not. Hence, redefine this to a non-volatile type as needed. */ #if ! 1 # if !GNULIB_defined_sig_atomic_t typedef int rpl_sig_atomic_t; # undef sig_atomic_t # define sig_atomic_t rpl_sig_atomic_t # define GNULIB_defined_sig_atomic_t 1 # endif #endif /* A set or mask of signals. */ #if !1 # 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 !1 # ifdef __cplusplus extern "C" { # endif # if !GNULIB_defined_sighandler_t typedef void (*sighandler_t) (int); # define GNULIB_defined_sighandler_t 1 # endif # ifdef __cplusplus } # endif #endif #if 1 # ifndef SIGPIPE /* Define SIGPIPE to a value that does not overlap with other signals. */ # define SIGPIPE 13 # define GNULIB_defined_SIGPIPE 1 /* To actually use SIGPIPE, you also need the gnulib modules 'sigprocmask', 'write', 'stdio'. */ # endif #endif /* Maximum signal number + 1. */ #ifndef NSIG # if defined __TANDEM # define NSIG 32 # endif #endif #if 0 # if 0 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef pthread_sigmask # define pthread_sigmask rpl_pthread_sigmask # endif _GL_FUNCDECL_RPL (pthread_sigmask, int, (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 !1 _GL_FUNCDECL_SYS (pthread_sigmask, int, (int how, const sigset_t *new_mask, sigset_t *old_mask)); # endif _GL_CXXALIAS_SYS (pthread_sigmask, int, (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 #endif #if 1 # if 0 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef raise # define raise rpl_raise # endif _GL_FUNCDECL_RPL (raise, int, (int sig)); _GL_CXXALIAS_RPL (raise, int, (int sig)); # else # if !1 _GL_FUNCDECL_SYS (raise, int, (int sig)); # endif _GL_CXXALIAS_SYS (raise, int, (int sig)); # endif _GL_CXXALIASWARN (raise); #elif defined GNULIB_POSIXCHECK # undef raise /* Assume raise is always declared. */ _GL_WARN_ON_USE (raise, "raise can crash on native Windows - " "use gnulib module raise for portability"); #endif #if 1 # if !1 # ifndef GNULIB_defined_signal_blocking # define GNULIB_defined_signal_blocking 1 # endif /* Maximum signal number + 1. */ # ifndef NSIG # define NSIG 32 # endif /* This code supports only 32 signals. */ # if !GNULIB_defined_verify_NSIG_constraint typedef int verify_NSIG_constraint[NSIG <= 32 ? 1 : -1]; # define GNULIB_defined_verify_NSIG_constraint 1 # endif # endif /* When also using extern inline, suppress the use of static inline in standard headers of problematic Apple configurations, as Libc at least through Libc-825.26 (2013-04-09) mishandles it; see, e.g., . Perhaps Apple will fix this some day. */ #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \ && (defined __i386__ || defined __x86_64__)) # undef sigaddset # undef sigdelset # undef sigemptyset # undef sigfillset # undef sigismember #endif /* Test whether a given signal is contained in a signal set. */ # if 1 /* This function is defined as a macro on Mac OS 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. */ # if 1 /* This function is defined as a macro on Mac OS 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. */ # if 1 /* This function is defined as a macro on Mac OS 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. */ # if 1 /* This function is defined as a macro on Mac OS 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. */ # if 1 /* This function is defined as a macro on Mac OS 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. */ # if !1 _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. Then, if SET is not NULL, affect the current set of blocked signals by combining it with *SET as indicated in OPERATION. In this implementation, you are not allowed to change a signal handler while the signal is blocked. */ # if !1 # define SIG_BLOCK 0 /* blocked_set = blocked_set | *set; */ # define SIG_SETMASK 1 /* blocked_set = *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); /* Install the handler FUNC for signal SIG, and return the previous handler. */ # 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 !1 # 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 !1 && GNULIB_defined_SIGPIPE /* Raise signal SIGPIPE. */ _GL_EXTERN_C int _gl_raise_SIGPIPE (void); # endif #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 # 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 - " "use the gnulib module sigprocmask for portability"); # endif # undef sigismember # if HAVE_RAW_DECL_SIGISMEMBER _GL_WARN_ON_USE (sigismember, "sigismember is unportable - " "use the gnulib module sigprocmask for portability"); # endif # undef sigpending # if HAVE_RAW_DECL_SIGPENDING _GL_WARN_ON_USE (sigpending, "sigpending is unportable - " "use the gnulib module sigprocmask for portability"); # endif # undef sigprocmask # if HAVE_RAW_DECL_SIGPROCMASK _GL_WARN_ON_USE (sigprocmask, "sigprocmask is unportable - " "use the gnulib module sigprocmask for portability"); # endif #endif /* 1 */ #if 1 # if !1 # if !1 # if !GNULIB_defined_siginfo_types /* Present to allow compilation, but unsupported by gnulib. */ union sigval { int sival_int; void *sival_ptr; }; /* Present to allow compilation, but unsupported by gnulib. */ struct siginfo_t { int si_signo; int si_code; int si_errno; pid_t si_pid; uid_t si_uid; void *si_addr; int si_status; long si_band; union sigval si_value; }; typedef struct siginfo_t siginfo_t; # define GNULIB_defined_siginfo_types 1 # endif # endif /* !1 */ /* We assume that platforms which lack the sigaction() function also lack the 'struct sigaction' type, and vice versa. */ # if !GNULIB_defined_struct_sigaction struct sigaction { union { void (*_sa_handler) (int); /* Present to allow compilation, but unsupported by gnulib. POSIX says that implementations may, but not must, make sa_sigaction overlap with sa_handler, but we know of no implementation where they do not overlap. */ void (*_sa_sigaction) (int, siginfo_t *, void *); } _sa_func; sigset_t sa_mask; /* Not all POSIX flags are supported. */ int sa_flags; }; # define sa_handler _sa_func._sa_handler # define sa_sigaction _sa_func._sa_sigaction /* Unsupported flags are not present. */ # define SA_RESETHAND 1 # define SA_NODEFER 2 # define SA_RESTART 4 # define GNULIB_defined_struct_sigaction 1 # endif _GL_FUNCDECL_SYS (sigaction, int, (int, const struct sigaction *restrict, struct sigaction *restrict)); # elif !1 # define sa_sigaction sa_handler # endif /* !1, !1 */ _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. */ #ifndef SA_NODEFER # define SA_NODEFER 0 #endif #endif /* _GL_M4_SIGNAL_H */ #endif /* _GL_M4_SIGNAL_H */ #endif