959 lines
35 KiB
C
959 lines
35 KiB
C
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/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
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/* A GNU-like <signal.h>.
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Copyright (C) 2006-2020 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#if __GNUC__ >= 3
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#pragma GCC system_header
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#endif
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#if defined __need_sig_atomic_t || defined __need_sigset_t || defined _GL_ALREADY_INCLUDING_SIGNAL_H || (defined _SIGNAL_H && !defined __SIZEOF_PTHREAD_MUTEX_T)
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/* Special invocation convention:
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- Inside glibc header files.
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- On glibc systems we have a sequence of nested includes
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<signal.h> -> <ucontext.h> -> <signal.h>.
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In this situation, the functions are not yet declared, therefore we cannot
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provide the C++ aliases.
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- On glibc systems with GCC 4.3 we have a sequence of nested includes
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<csignal> -> </usr/include/signal.h> -> <sys/ucontext.h> -> <signal.h>.
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In this situation, some of the functions are not yet declared, therefore
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we cannot provide the C++ aliases. */
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# include_next <signal.h>
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#else
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/* Normal invocation convention. */
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#ifndef _GL_SIGNAL_H
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#define _GL_ALREADY_INCLUDING_SIGNAL_H
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/* Define pid_t, uid_t.
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Also, mingw defines sigset_t not in <signal.h>, but in <sys/types.h>.
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On Solaris 10, <signal.h> includes <sys/types.h>, which eventually includes
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us; so include <sys/types.h> now, before the second inclusion guard. */
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#include <sys/types.h>
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/* The include_next requires a split double-inclusion guard. */
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#include_next <signal.h>
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#undef _GL_ALREADY_INCLUDING_SIGNAL_H
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#ifndef _GL_SIGNAL_H
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#define _GL_SIGNAL_H
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/* Mac OS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6, Android
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declare pthread_sigmask in <pthread.h>, not in <signal.h>.
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But avoid namespace pollution on glibc systems.*/
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#if (1 || defined GNULIB_POSIXCHECK) \
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&& ((defined __APPLE__ && defined __MACH__) \
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|| defined __FreeBSD__ || defined __OpenBSD__ || defined __osf__ \
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|| defined __sun || defined __ANDROID__) \
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&& ! defined __GLIBC__
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# include <pthread.h>
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#endif
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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/* C++ compatible function declaration macros.
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Copyright (C) 2010-2020 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _GL_CXXDEFS_H
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#define _GL_CXXDEFS_H
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/* Begin/end the GNULIB_NAMESPACE namespace. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
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# define _GL_END_NAMESPACE }
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#else
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# define _GL_BEGIN_NAMESPACE
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# define _GL_END_NAMESPACE
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#endif
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/* The three most frequent use cases of these macros are:
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* For providing a substitute for a function that is missing on some
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platforms, but is declared and works fine on the platforms on which
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it exists:
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#if @GNULIB_FOO@
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# if !@HAVE_FOO@
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_GL_FUNCDECL_SYS (foo, ...);
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# endif
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_GL_CXXALIAS_SYS (foo, ...);
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on all platforms,
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but is broken/insufficient and needs to be replaced on some platforms:
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#if @GNULIB_FOO@
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# if @REPLACE_FOO@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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_GL_CXXALIAS_RPL (foo, ...);
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# else
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_GL_CXXALIAS_SYS (foo, ...);
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# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on some platforms
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but is broken/insufficient and needs to be replaced on some of them and
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is additionally either missing or undeclared on some other platforms:
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#if @GNULIB_FOO@
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# if @REPLACE_FOO@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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_GL_CXXALIAS_RPL (foo, ...);
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# else
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# if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
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_GL_FUNCDECL_SYS (foo, ...);
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# endif
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_GL_CXXALIAS_SYS (foo, ...);
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# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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*/
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/* _GL_EXTERN_C declaration;
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performs the declaration with C linkage. */
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#if defined __cplusplus
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# define _GL_EXTERN_C extern "C"
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#else
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# define _GL_EXTERN_C extern
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#endif
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/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
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declares a replacement function, named rpl_func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
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_GL_ARG_NONNULL ((1)));
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*/
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#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
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_GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
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#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype rpl_func parameters_and_attributes
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/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
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declares the system function, named func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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_GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
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_GL_ARG_NONNULL ((1)));
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*/
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#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype func parameters_and_attributes
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/* _GL_CXXALIAS_RPL (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
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Example:
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_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
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Wrapping rpl_func in an object with an inline conversion operator
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avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::rpl_func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
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is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
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except that the C function rpl_func may have a slightly different
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declaration. A cast is used to silence the "invalid conversion" error
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that would otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>(::rpl_func); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to the system provided function func, if GNULIB_NAMESPACE
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is defined.
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Example:
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_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
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Wrapping func in an object with an inline conversion operator
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avoids a reference to func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
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is like _GL_CXXALIAS_SYS (func, rettype, parameters);
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except that the C function func may have a slightly different declaration.
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A cast is used to silence the "invalid conversion" error that would
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otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>(::func); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
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is like _GL_CXXALIAS_SYS (func, rettype, parameters);
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except that the C function is picked among a set of overloaded functions,
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namely the one with rettype2 and parameters2. Two consecutive casts
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are used to silence the "cannot find a match" and "invalid conversion"
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errors that would otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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/* The outer cast must be a reinterpret_cast.
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The inner cast: When the function is defined as a set of overloaded
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functions, it works as a static_cast<>, choosing the designated variant.
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When the function is defined as a single variant, it works as a
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reinterpret_cast<>. The parenthesized cast syntax works both ways. */
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# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIASWARN (func);
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causes a warning to be emitted when ::func is used but not when
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GNULIB_NAMESPACE::func is used. func must be defined without overloaded
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variants. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIASWARN(func) \
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_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
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# define _GL_CXXALIASWARN_1(func,namespace) \
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_GL_CXXALIASWARN_2 (func, namespace)
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/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
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we enable the warning only when not optimizing. */
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# if !__OPTIMIZE__
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# define _GL_CXXALIASWARN_2(func,namespace) \
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|
|
_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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
|
||
|
|
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.")
|
||
|
|
# 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) 2009-2020 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 <https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
/* _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) 2010-2020 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 <https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
/* _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 <stdio.h>]],
|
||
|
|
[getline]) in configure.ac, which potentially defines
|
||
|
|
HAVE_RAW_DECL_GETLINE
|
||
|
|
- adding this code to a header that wraps the system <stdio.h>:
|
||
|
|
#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 1
|
||
|
|
# 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 *restrict new_mask,
|
||
|
|
sigset_t *restrict old_mask));
|
||
|
|
_GL_CXXALIAS_RPL (pthread_sigmask, int,
|
||
|
|
(int how,
|
||
|
|
const sigset_t *restrict new_mask,
|
||
|
|
sigset_t *restrict old_mask));
|
||
|
|
# else
|
||
|
|
# if !(1 || defined pthread_sigmask)
|
||
|
|
_GL_FUNCDECL_SYS (pthread_sigmask, int,
|
||
|
|
(int how,
|
||
|
|
const sigset_t *restrict new_mask,
|
||
|
|
sigset_t *restrict old_mask));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (pthread_sigmask, int,
|
||
|
|
(int how,
|
||
|
|
const sigset_t *restrict new_mask,
|
||
|
|
sigset_t *restrict old_mask));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (pthread_sigmask);
|
||
|
|
# endif
|
||
|
|
#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
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (raise);
|
||
|
|
# endif
|
||
|
|
#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.,
|
||
|
|
<https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
|
||
|
|
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 *restrict set,
|
||
|
|
sigset_t *restrict old_set));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (sigprocmask, int,
|
||
|
|
(int operation,
|
||
|
|
const sigset_t *restrict set,
|
||
|
|
sigset_t *restrict 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
|
||
|
|
/* On OpenBSD, the declaration of 'signal' may not be present at this point,
|
||
|
|
because it occurs in <sys/signal.h>, not <signal.h> directly. */
|
||
|
|
# if defined __OpenBSD__
|
||
|
|
_GL_FUNCDECL_SYS (signal, _gl_function_taking_int_returning_void_t,
|
||
|
|
(int sig, _gl_function_taking_int_returning_void_t func));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (signal, _gl_function_taking_int_returning_void_t,
|
||
|
|
(int sig, _gl_function_taking_int_returning_void_t func));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (signal);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# 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_SIGNAL_H */
|
||
|
|
#endif /* _GL_SIGNAL_H */
|
||
|
|
#endif
|