| /* A more-standard <time.h>. |
| |
| Copyright (C) 2007-2016 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, 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_SYSTEM_HEADER@ |
| #endif |
| @PRAGMA_COLUMNS@ |
| |
| /* Don't get in the way of glibc when it includes time.h merely to |
| declare a few standard symbols, rather than to declare all the |
| symbols. (However, skip this for MinGW as it treats __need_time_t |
| incompatibly.) Also, Solaris 8 <time.h> eventually includes itself |
| recursively; if that is happening, just include the system <time.h> |
| without adding our own declarations. */ |
| #if (((defined __need_time_t || defined __need_clock_t \ |
| || defined __need_timespec) \ |
| && !defined __MINGW32__) \ |
| || defined _@GUARD_PREFIX@_TIME_H) |
| |
| # @INCLUDE_NEXT@ @NEXT_TIME_H@ |
| |
| #else |
| |
| # define _@GUARD_PREFIX@_TIME_H |
| |
| # @INCLUDE_NEXT@ @NEXT_TIME_H@ |
| |
| /* NetBSD 5.0 mis-defines NULL. */ |
| # include <stddef.h> |
| |
| /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
| |
| /* The definition of _GL_ARG_NONNULL is copied here. */ |
| |
| /* The definition of _GL_WARN_ON_USE is copied here. */ |
| |
| /* Some systems don't define struct timespec (e.g., AIX 4.1, Ultrix 4.3). |
| Or they define it with the wrong member names or define it in <sys/time.h> |
| (e.g., FreeBSD circa 1997). Stock Mingw prior to 3.0 does not define it, |
| but the pthreads-win32 library defines it in <pthread.h>. */ |
| # if ! @TIME_H_DEFINES_STRUCT_TIMESPEC@ |
| # if @SYS_TIME_H_DEFINES_STRUCT_TIMESPEC@ |
| # include <sys/time.h> |
| # elif @PTHREAD_H_DEFINES_STRUCT_TIMESPEC@ |
| # include <pthread.h> |
| # elif @UNISTD_H_DEFINES_STRUCT_TIMESPEC@ |
| # include <unistd.h> |
| # else |
| |
| # ifdef __cplusplus |
| extern "C" { |
| # endif |
| |
| # if !GNULIB_defined_struct_timespec |
| # undef timespec |
| # define timespec rpl_timespec |
| struct timespec |
| { |
| time_t tv_sec; |
| long int tv_nsec; |
| }; |
| # define GNULIB_defined_struct_timespec 1 |
| # endif |
| |
| # ifdef __cplusplus |
| } |
| # endif |
| |
| # endif |
| # endif |
| |
| # if !GNULIB_defined_struct_time_t_must_be_integral |
| /* Per http://austingroupbugs.net/view.php?id=327, POSIX requires |
| time_t to be an integer type, even though C99 permits floating |
| point. We don't know of any implementation that uses floating |
| point, and it is much easier to write code that doesn't have to |
| worry about that corner case, so we force the issue. */ |
| struct __time_t_must_be_integral { |
| unsigned int __floating_time_t_unsupported : (time_t) 1; |
| }; |
| # define GNULIB_defined_struct_time_t_must_be_integral 1 |
| # endif |
| |
| /* Sleep for at least RQTP seconds unless interrupted, If interrupted, |
| return -1 and store the remaining time into RMTP. See |
| <http://www.opengroup.org/susv3xsh/nanosleep.html>. */ |
| # if @GNULIB_NANOSLEEP@ |
| # if @REPLACE_NANOSLEEP@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # define nanosleep rpl_nanosleep |
| # endif |
| _GL_FUNCDECL_RPL (nanosleep, int, |
| (struct timespec const *__rqtp, struct timespec *__rmtp) |
| _GL_ARG_NONNULL ((1))); |
| _GL_CXXALIAS_RPL (nanosleep, int, |
| (struct timespec const *__rqtp, struct timespec *__rmtp)); |
| # else |
| # if ! @HAVE_NANOSLEEP@ |
| _GL_FUNCDECL_SYS (nanosleep, int, |
| (struct timespec const *__rqtp, struct timespec *__rmtp) |
| _GL_ARG_NONNULL ((1))); |
| # endif |
| _GL_CXXALIAS_SYS (nanosleep, int, |
| (struct timespec const *__rqtp, struct timespec *__rmtp)); |
| # endif |
| _GL_CXXALIASWARN (nanosleep); |
| # endif |
| |
| /* Return the 'time_t' representation of TP and normalize TP. */ |
| # if @GNULIB_MKTIME@ |
| # if @REPLACE_MKTIME@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # define mktime rpl_mktime |
| # endif |
| _GL_FUNCDECL_RPL (mktime, time_t, (struct tm *__tp) _GL_ARG_NONNULL ((1))); |
| _GL_CXXALIAS_RPL (mktime, time_t, (struct tm *__tp)); |
| # else |
| _GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp)); |
| # endif |
| _GL_CXXALIASWARN (mktime); |
| # endif |
| |
| /* Convert TIMER to RESULT, assuming local time and UTC respectively. See |
| <http://www.opengroup.org/susv3xsh/localtime_r.html> and |
| <http://www.opengroup.org/susv3xsh/gmtime_r.html>. */ |
| # if @GNULIB_TIME_R@ |
| # if @REPLACE_LOCALTIME_R@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # undef localtime_r |
| # define localtime_r rpl_localtime_r |
| # endif |
| _GL_FUNCDECL_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result) |
| _GL_ARG_NONNULL ((1, 2))); |
| _GL_CXXALIAS_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result)); |
| # else |
| # if ! @HAVE_DECL_LOCALTIME_R@ |
| _GL_FUNCDECL_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result) |
| _GL_ARG_NONNULL ((1, 2))); |
| # endif |
| _GL_CXXALIAS_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result)); |
| # endif |
| # if @HAVE_DECL_LOCALTIME_R@ |
| _GL_CXXALIASWARN (localtime_r); |
| # endif |
| # if @REPLACE_LOCALTIME_R@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # undef gmtime_r |
| # define gmtime_r rpl_gmtime_r |
| # endif |
| _GL_FUNCDECL_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result) |
| _GL_ARG_NONNULL ((1, 2))); |
| _GL_CXXALIAS_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result)); |
| # else |
| # if ! @HAVE_DECL_LOCALTIME_R@ |
| _GL_FUNCDECL_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result) |
| _GL_ARG_NONNULL ((1, 2))); |
| # endif |
| _GL_CXXALIAS_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, |
| struct tm *restrict __result)); |
| # endif |
| # if @HAVE_DECL_LOCALTIME_R@ |
| _GL_CXXALIASWARN (gmtime_r); |
| # endif |
| # endif |
| |
| /* Convert TIMER to RESULT, assuming local time and UTC respectively. See |
| <http://www.opengroup.org/susv3xsh/localtime.html> and |
| <http://www.opengroup.org/susv3xsh/gmtime.html>. */ |
| # if @GNULIB_GETTIMEOFDAY@ |
| # if @REPLACE_LOCALTIME@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # undef localtime |
| # define localtime rpl_localtime |
| # endif |
| _GL_FUNCDECL_RPL (localtime, struct tm *, (time_t const *__timer) |
| _GL_ARG_NONNULL ((1))); |
| _GL_CXXALIAS_RPL (localtime, struct tm *, (time_t const *__timer)); |
| # else |
| _GL_CXXALIAS_SYS (localtime, struct tm *, (time_t const *__timer)); |
| # endif |
| _GL_CXXALIASWARN (localtime); |
| # endif |
| |
| # if @GNULIB_GETTIMEOFDAY@ |
| # if @REPLACE_GMTIME@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # undef gmtime |
| # define gmtime rpl_gmtime |
| # endif |
| _GL_FUNCDECL_RPL (gmtime, struct tm *, (time_t const *__timer) |
| _GL_ARG_NONNULL ((1))); |
| _GL_CXXALIAS_RPL (gmtime, struct tm *, (time_t const *__timer)); |
| # else |
| _GL_CXXALIAS_SYS (gmtime, struct tm *, (time_t const *__timer)); |
| # endif |
| _GL_CXXALIASWARN (gmtime); |
| # endif |
| |
| /* Parse BUF as a time stamp, assuming FORMAT specifies its layout, and store |
| the resulting broken-down time into TM. See |
| <http://www.opengroup.org/susv3xsh/strptime.html>. */ |
| # if @GNULIB_STRPTIME@ |
| # if ! @HAVE_STRPTIME@ |
| _GL_FUNCDECL_SYS (strptime, char *, (char const *restrict __buf, |
| char const *restrict __format, |
| struct tm *restrict __tm) |
| _GL_ARG_NONNULL ((1, 2, 3))); |
| # endif |
| _GL_CXXALIAS_SYS (strptime, char *, (char const *restrict __buf, |
| char const *restrict __format, |
| struct tm *restrict __tm)); |
| _GL_CXXALIASWARN (strptime); |
| # endif |
| |
| # if defined _GNU_SOURCE && @GNULIB_TIME_RZ@ && ! @HAVE_TIMEZONE_T@ |
| typedef struct tm_zone *timezone_t; |
| _GL_FUNCDECL_SYS (tzalloc, timezone_t, (char const *__name)); |
| _GL_CXXALIAS_SYS (tzalloc, timezone_t, (char const *__name)); |
| _GL_FUNCDECL_SYS (tzfree, void, (timezone_t __tz)); |
| _GL_CXXALIAS_SYS (tzfree, void, (timezone_t __tz)); |
| _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)); |
| _GL_FUNCDECL_SYS (mktime_z, time_t, |
| (timezone_t __tz, struct tm *restrict __result) |
| _GL_ARG_NONNULL ((2))); |
| _GL_CXXALIAS_SYS (mktime_z, time_t, |
| (timezone_t __tz, struct tm *restrict __result)); |
| # endif |
| |
| /* Convert TM to a time_t value, assuming UTC. */ |
| # if @GNULIB_TIMEGM@ |
| # if @REPLACE_TIMEGM@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # undef timegm |
| # define timegm rpl_timegm |
| # endif |
| _GL_FUNCDECL_RPL (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); |
| _GL_CXXALIAS_RPL (timegm, time_t, (struct tm *__tm)); |
| # else |
| # if ! @HAVE_TIMEGM@ |
| _GL_FUNCDECL_SYS (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); |
| # endif |
| _GL_CXXALIAS_SYS (timegm, time_t, (struct tm *__tm)); |
| # endif |
| _GL_CXXALIASWARN (timegm); |
| # endif |
| |
| /* Encourage applications to avoid unsafe functions that can overrun |
| buffers when given outlandish struct tm values. Portable |
| applications should use strftime (or even sprintf) instead. */ |
| # if defined GNULIB_POSIXCHECK |
| # undef asctime |
| _GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - " |
| "better use strftime (or even sprintf) instead"); |
| # endif |
| # if defined GNULIB_POSIXCHECK |
| # undef asctime_r |
| _GL_WARN_ON_USE (asctime, "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 - " |
| "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 - " |
| "better use strftime (or even sprintf) instead"); |
| # endif |
| |
| #endif |
