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Diffstat (limited to 'soong/linux_musl/signal.h')
| -rw-r--r-- | soong/linux_musl/signal.h | 820 |
1 files changed, 820 insertions, 0 deletions
diff --git a/soong/linux_musl/signal.h b/soong/linux_musl/signal.h new file mode 100644 index 0000000..9f72617 --- /dev/null +++ b/soong/linux_musl/signal.h @@ -0,0 +1,820 @@ +/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ +/* A GNU-like <signal.h>. + + 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 <http://www.gnu.org/licenses/>. */ + +#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 + <signal.h> -> <ucontext.h> -> <signal.h>. + In this situation, the functions are not yet declared, therefore we cannot + provide the C++ aliases. + - On glibc systems with GCC 4.3 we have a sequence of nested includes + <csignal> -> </usr/include/signal.h> -> <sys/ucontext.h> -> <signal.h>. + In this situation, some of the functions are not yet declared, therefore + we cannot provide the C++ aliases. */ + +# include_next <signal.h> + +#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 <signal.h>, but in <sys/types.h>. + On Solaris 10, <signal.h> includes <sys/types.h>, which eventually includes + us; so include <sys/types.h> now, before the second inclusion guard. */ +#include <sys/types.h> + +/* The include_next requires a split double-inclusion guard. */ +#include_next <signal.h> + +#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 <pthread.h>, not in <signal.h>. + 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 <pthread.h> +#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<type>(::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<type>(::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<type>((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 <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, + 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 <http://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.") +# 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., + <http://lists.gnu.org/archive/html/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 *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 |