/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ /* A GNU-like . Copyright (C) 2006-2018 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_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_SIGNAL_H #define _GL_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. */ /* C++ compatible function declaration macros. Copyright (C) 2010-2018 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 . */ #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. */ /* A C macro for declaring that specific arguments must not be NULL. Copyright (C) 2009-2018 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 . */ /* _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. */ /* A C macro for emitting warnings if a function is used. Copyright (C) 2010-2018 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 . */ /* _GL_WARN_ON_USE (function, "literal string") issues a declaration for FUNCTION which will then trigger a compiler warning containing the text of "literal string" anywhere that function is called, if supported by the compiler. If the compiler does not support this feature, the macro expands to an unused extern declaration. _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the attribute used in _GL_WARN_ON_USE. If the compiler does not support this feature, it expands to empty. These macros are useful for marking a function as a potential portability trap, with the intent that "literal string" include instructions on the replacement function that should be used instead. _GL_WARN_ON_USE is for functions with 'extern' linkage. _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline' linkage. However, one of the reasons that a function is a portability trap is if it has the wrong signature. Declaring FUNCTION with a different signature in C is a compilation error, so this macro must use the same type as any existing declaration so that programs that avoid the problematic FUNCTION do not fail to compile merely because they included a header that poisoned the function. But this implies that _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already have a declaration. Use of this macro implies that there must not be any other macro hiding the declaration of FUNCTION; but undefining FUNCTION first is part of the poisoning process anyway (although for symbols that are provided only via a macro, the result is a compilation error rather than a warning containing "literal string"). Also note that in C++, it is only safe to use if FUNCTION has no overloads. For an example, it is possible to poison 'getline' by: - adding a call to gl_WARN_ON_USE_PREPARE([[#include ]], [getline]) in configure.ac, which potentially defines HAVE_RAW_DECL_GETLINE - adding this code to a header that wraps the system : #undef getline #if HAVE_RAW_DECL_GETLINE _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but" "not universally present; use the gnulib module getline"); #endif It is not possible to directly poison global variables. But it is possible to write a wrapper accessor function, and poison that (less common usage, like &environ, will cause a compilation error rather than issue the nice warning, but the end result of informing the developer about their portability problem is still achieved): #if HAVE_RAW_DECL_ENVIRON static char *** rpl_environ (void) { return &environ; } _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared"); # undef environ # define environ (*rpl_environ ()) #endif or better (avoiding contradictory use of 'static' and 'extern'): #if HAVE_RAW_DECL_ENVIRON static char *** _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared") rpl_environ (void) { return &environ; } # undef environ # define environ (*rpl_environ ()) #endif */ #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))) # define _GL_WARN_ON_USE_ATTRIBUTE(message) \ __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 # define _GL_WARN_ON_USE_ATTRIBUTE(message) # else /* Unsupported. */ # define _GL_WARN_ON_USE(function, message) \ _GL_WARN_EXTERN_C int _gl_warn_on_use # define _GL_WARN_ON_USE_ATTRIBUTE(message) # 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 0 # 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 || defined 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, (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 IN_SED_GNULIB_TESTS # 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 IN_SED_GNULIB_TESTS # 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 /* IN_SED_GNULIB_TESTS */ #if IN_SED_GNULIB_TESTS # 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_SIGNAL_H */ #endif /* _GL_SIGNAL_H */ #endif