diff options
Diffstat (limited to 'linux_musl-lib/time.h')
| -rw-r--r-- | linux_musl-lib/time.h | 226 |
1 files changed, 168 insertions, 58 deletions
diff --git a/linux_musl-lib/time.h b/linux_musl-lib/time.h index 1262e7cc..1d9ad11e 100644 --- a/linux_musl-lib/time.h +++ b/linux_musl-lib/time.h @@ -1,20 +1,20 @@ /* DO NOT EDIT! GENERATED AUTOMATICALLY! */ /* A more-standard <time.h>. - Copyright (C) 2007-2019 Free Software Foundation, Inc. + Copyright (C) 2007-2021 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, or (at your option) - any later version. + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + This file 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. + GNU Lesser 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/>. */ + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ #if __GNUC__ >= 3 #pragma GCC system_header @@ -51,19 +51,19 @@ /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ /* C++ compatible function declaration macros. - Copyright (C) 2010-2019 Free Software Foundation, Inc. + Copyright (C) 2010-2021 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 + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 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. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #ifndef _GL_CXXDEFS_H @@ -198,6 +198,16 @@ _GL_EXTERN_C int _gl_cxxalias_dummy #endif +/* _GL_CXXALIAS_MDA (func, rettype, parameters); + is to be used when func is a Microsoft deprecated alias, on native Windows. + It declares a C++ alias called GNULIB_NAMESPACE::func + that redirects to _func, if GNULIB_NAMESPACE is defined. + Example: + _GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...)); + */ +#define _GL_CXXALIAS_MDA(func,rettype,parameters) \ + _GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters) + /* _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 @@ -223,6 +233,14 @@ _GL_EXTERN_C int _gl_cxxalias_dummy #endif +/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters); + is like _GL_CXXALIAS_MDA (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. */ +#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \ + _GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters) + /* _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 @@ -320,7 +338,7 @@ _GL_CXXALIASWARN_2 (func, 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__ +# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__) # define _GL_CXXALIASWARN_2(func,namespace) \ _GL_WARN_ON_USE (func, \ "The symbol ::" #func " refers to the system function. " \ @@ -348,14 +366,11 @@ _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__ +# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__) # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ - _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ + _GL_WARN_ON_USE_CXX (func, rettype, 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 @@ -369,26 +384,26 @@ /* The definition of _GL_ARG_NONNULL is copied here. */ /* A C macro for declaring that specific arguments must not be NULL. - Copyright (C) 2009-2019 Free Software Foundation, Inc. + Copyright (C) 2009-2021 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 + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 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. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser 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 +# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__ # define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) # else # define _GL_ARG_NONNULL(params) @@ -397,19 +412,19 @@ /* The definition of _GL_WARN_ON_USE is copied here. */ /* A C macro for emitting warnings if a function is used. - Copyright (C) 2010-2019 Free Software Foundation, Inc. + Copyright (C) 2010-2021 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 + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 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. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser 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 @@ -485,6 +500,13 @@ extern __typeof__ (function) function __attribute__ ((__warning__ (message))) # define _GL_WARN_ON_USE_ATTRIBUTE(message) \ __attribute__ ((__warning__ (message))) +# elif __clang_major__ >= 4 +/* Another compiler attribute is available in clang. */ +# define _GL_WARN_ON_USE(function, message) \ +extern __typeof__ (function) function \ + __attribute__ ((__diagnose_if__ (1, message, "warning"))) +# define _GL_WARN_ON_USE_ATTRIBUTE(message) \ + __attribute__ ((__diagnose_if__ (1, message, "warning"))) # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING /* Verify the existence of the function. */ # define _GL_WARN_ON_USE(function, message) \ @@ -497,24 +519,35 @@ _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. +/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message") + is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode 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 +# if !defined __cplusplus +# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \ + _GL_WARN_ON_USE (function, msg) +# else +# 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_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \ +extern rettype_gcc function parameters_and_attributes \ + __attribute__ ((__warning__ (msg))) +# elif __clang_major__ >= 4 +/* Another compiler attribute is available in clang. */ +# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \ +extern rettype_clang function parameters_and_attributes \ + __attribute__ ((__diagnose_if__ (1, msg, "warning"))) +# 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) \ +# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \ +extern rettype_gcc function parameters_and_attributes +# else /* Unsupported. */ +# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \ _GL_WARN_EXTERN_C int _gl_warn_on_use +# endif # endif #endif @@ -575,6 +608,25 @@ struct __time_t_must_be_integral { # define GNULIB_defined_struct_time_t_must_be_integral 1 # endif +/* Define TIME_UTC, a positive integer constant used for timespec_get(). */ +# if ! 1 +# if !GNULIB_defined_TIME_UTC +# define TIME_UTC 1 +# define GNULIB_defined_TIME_UTC 1 +# endif +# endif + +/* Set *TS to the current time, and return BASE. + Upon failure, return 0. */ +# if 0 +# if ! 1 +_GL_FUNCDECL_SYS (timespec_get, int, (struct timespec *ts, int base) + _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (timespec_get, int, (struct timespec *ts, int base)); +_GL_CXXALIASWARN (timespec_get); +# endif + /* Sleep for at least RQTP seconds unless interrupted, If interrupted, return -1 and store the remaining time into RMTP. See <https://pubs.opengroup.org/onlinepubs/9699919799/functions/nanosleep.html>. */ @@ -609,10 +661,27 @@ _GL_CXXALIASWARN (nanosleep); # endif _GL_FUNCDECL_RPL (tzset, void, (void)); _GL_CXXALIAS_RPL (tzset, void, (void)); +# elif defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef tzset +# define tzset _tzset +# endif +_GL_CXXALIAS_MDA (tzset, void, (void)); # else -# if ! 1 -_GL_FUNCDECL_SYS (tzset, void, (void)); +_GL_CXXALIAS_SYS (tzset, void, (void)); +# endif +_GL_CXXALIASWARN (tzset); +# elif 1 +/* On native Windows, map 'tzset' to '_tzset', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::tzset always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef tzset +# define tzset _tzset # endif +_GL_CXXALIAS_MDA (tzset, void, (void)); +# else _GL_CXXALIAS_SYS (tzset, void, (void)); # endif _GL_CXXALIASWARN (tzset); @@ -760,14 +829,17 @@ _GL_CXXALIASWARN (ctime); # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define strftime rpl_strftime # endif -_GL_FUNCDECL_RPL (strftime, size_t, (char *__buf, size_t __bufsize, - const char *__fmt, const struct tm *__tp) - _GL_ARG_NONNULL ((1, 3, 4))); -_GL_CXXALIAS_RPL (strftime, size_t, (char *__buf, size_t __bufsize, - const char *__fmt, const struct tm *__tp)); +_GL_FUNCDECL_RPL (strftime, size_t, + (char *restrict __buf, size_t __bufsize, + const char *restrict __fmt, const struct tm *restrict __tp) + _GL_ARG_NONNULL ((1, 3, 4))); +_GL_CXXALIAS_RPL (strftime, size_t, + (char *restrict __buf, size_t __bufsize, + const char *restrict __fmt, const struct tm *restrict __tp)); # else -_GL_CXXALIAS_SYS (strftime, size_t, (char *__buf, size_t __bufsize, - const char *__fmt, const struct tm *__tp)); +_GL_CXXALIAS_SYS (strftime, size_t, + (char *restrict __buf, size_t __bufsize, + const char *restrict __fmt, const struct tm *restrict __tp)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (strftime); @@ -775,22 +847,60 @@ _GL_CXXALIASWARN (strftime); # endif # if defined _GNU_SOURCE && 0 && ! 0 +/* Functions that use a first-class time zone data type, instead of + relying on an implicit global time zone. + Inspired by NetBSD. */ + +/* Represents a time zone. + (timezone_t) NULL stands for UTC. */ typedef struct tm_zone *timezone_t; + +/* tzalloc (name) + Returns a time zone object for the given time zone NAME. This object + represents the time zone that other functions would use it the TZ + environment variable was set to NAME. + If NAME is NULL, the result represents the time zone that other functions + would use it the TZ environment variable was unset. + May return NULL if NAME is invalid (this is platform dependent) or + upon memory allocation failure. */ _GL_FUNCDECL_SYS (tzalloc, timezone_t, (char const *__name)); _GL_CXXALIAS_SYS (tzalloc, timezone_t, (char const *__name)); + +/* tzfree (tz) + Frees a time zone object. + The argument must have been returned by tzalloc(). */ _GL_FUNCDECL_SYS (tzfree, void, (timezone_t __tz)); _GL_CXXALIAS_SYS (tzfree, void, (timezone_t __tz)); + +/* localtime_rz (tz, &t, &result) + Converts an absolute time T to a broken-down time RESULT, assuming the + time zone TZ. + This function is like 'localtime_r', but relies on the argument TZ instead + of an implicit global time zone. */ _GL_FUNCDECL_SYS (localtime_rz, struct tm *, (timezone_t __tz, time_t const *restrict __timer, struct tm *restrict __result) _GL_ARG_NONNULL ((2, 3))); _GL_CXXALIAS_SYS (localtime_rz, struct tm *, (timezone_t __tz, time_t const *restrict __timer, struct tm *restrict __result)); + +/* mktime_z (tz, &tm) + Normalizes the broken-down time TM and converts it to an absolute time, + assuming the time zone TZ. Returns the absolute time. + This function is like 'mktime', but relies on the argument TZ instead + of an implicit global time zone. */ _GL_FUNCDECL_SYS (mktime_z, time_t, - (timezone_t __tz, struct tm *restrict __result) + (timezone_t __tz, struct tm *restrict __tm) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_SYS (mktime_z, time_t, - (timezone_t __tz, struct tm *restrict __result)); + (timezone_t __tz, struct tm *restrict __tm)); + +/* Time zone abbreviation strings (returned by 'localtime_rz' or 'mktime_z' + in the 'tm_zone' member of 'struct tm') are valid as long as + - the 'struct tm' argument is not destroyed or overwritten, + and + - the 'timezone_t' argument is not freed through tzfree(). */ + # endif /* Convert TM to a time_t value, assuming UTC. */ @@ -821,17 +931,17 @@ _GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - " # endif # if defined GNULIB_POSIXCHECK # undef asctime_r -_GL_WARN_ON_USE (asctime, "asctime_r can overrun buffers in some cases - " +_GL_WARN_ON_USE (asctime_r, "asctime_r can overrun buffers in some cases - " "better use strftime (or even sprintf) instead"); # endif # if defined GNULIB_POSIXCHECK # undef ctime -_GL_WARN_ON_USE (asctime, "ctime can overrun buffers in some cases - " +_GL_WARN_ON_USE (ctime, "ctime can overrun buffers in some cases - " "better use strftime (or even sprintf) instead"); # endif # if defined GNULIB_POSIXCHECK # undef ctime_r -_GL_WARN_ON_USE (asctime, "ctime_r can overrun buffers in some cases - " +_GL_WARN_ON_USE (ctime_r, "ctime_r can overrun buffers in some cases - " "better use strftime (or even sprintf) instead"); # endif |