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acd7f096d7
This patch completes the headers cleanup consequent on removal of _BSD_SOURCE and _SVID_SOURCE (apart from any subsequent deprecations): * #endif conditionals that referred to BSD or SVID are updated. * Redundant __USE_* tests in cases involving __USE_MISC are removed. This includes cases such as __USE_MISC || __USE_ISOC99, where __USE_MISC is redundant (because __USE_MISC is only ever defined in the default / _DEFAULT_SOURCE / _GNU_SOURCE case, when __USE_ISOC99 is also defined; the same applies to the non-XSI-extended POSIX versions), and cases involving __USE_GNU, where __USE_GNU is redundant (because if __USE_GNU is defined, so are the other __USE_* macros). There may well be other cases of __USE_FOO || __USE_BAR tests that could be simplified because one macro implies the other; this patch only addresses cases involving __USE_MISC. Tested x86_64. * bits/fcntl.h [__USE_MISC]: Remove redundant conditionals. * bits/sigaction.h [__USE_MISC]: Likewise. * bits/waitstatus.h: Update #endif comments. * ctype/ctype.h: Likewise. * dirent/dirent.h: Likewise. [__USE_MISC]: Remove redundant conditionals. * grp/grp.h: Update #endif comments. [__USE_GNU]: Remove redundant conditionals. [__USE_MISC]: Likewise. * inet/netinet/in.h [__USE_GNU]: Likewise. * io/sys/stat.h [__USE_MISC]: Likewise. * libio/bits/stdio-ldbl.h [__USE_MISC]: Likewise. * libio/bits/stdio.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * libio/bits/stdio2.h [__USE_MISC]: Likewise. * libio/stdio.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * math/bits/math-finite.h [__USE_MISC]: Likewise. * math/bits/mathcalls.h [__USE_MISC]: Likewise. * math/math.h: Update #else and #endif comments. [__USE_MISC]: Remove redundant conditionals. * misc/sys/uio.h: Update #endif comments. * posix/bits/unistd.h [__USE_MISC]: Remove redundant conditionals. * posix/glob.h [__USE_MISC]: Likewise. * posix/sys/types.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * posix/sys/wait.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * posix/unistd.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * pwd/pwd.h [__USE_GNU]: Likewise. [__USE_MISC]: Likewise. * resolv/netdb.h [__USE_GNU]: Likewise. * signal/signal.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * stdlib/stdlib.h: Update #else and #endif comments. [__USE_MISC]: Remove redundant conditionals. [__USE_GNU]: Likewise. * string/bits/string2.h [__USE_MISC]: Likewise. * string/string.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h [__USE_MISC]: Likewise. * sysdeps/mach/hurd/bits/fcntl.h [__USE_MISC]: Likewise. * sysdeps/mach/hurd/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * sysdeps/unix/sysv/linux/bits/in.h [__USE_GNU]: Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h [__USE_GNU]: Likewise. * sysdeps/unix/sysv/linux/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/m68k/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/s390/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/s390/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/x86/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/x86/bits/string.h: Update #endif comments. * sysdeps/x86/fpu/bits/mathinline.h [__USE_MISC]: Remove redundant conditionals. * time/sys/time.h: Update #endif comments. * time/time.h: Likewise. [__USE_MISC]: Remove redundant conditionals.
435 lines
13 KiB
C
435 lines
13 KiB
C
/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/*
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* ISO C99 Standard: 7.23 Date and time <time.h>
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*/
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#ifndef _TIME_H
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#if (! defined __need_time_t && !defined __need_clock_t && \
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! defined __need_timespec)
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# define _TIME_H 1
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# include <features.h>
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__BEGIN_DECLS
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#endif
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#ifdef _TIME_H
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/* Get size_t and NULL from <stddef.h>. */
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# define __need_size_t
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# define __need_NULL
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# include <stddef.h>
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/* This defines CLOCKS_PER_SEC, which is the number of processor clock
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ticks per second. */
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# include <bits/time.h>
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/* This is the obsolete POSIX.1-1988 name for the same constant. */
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# if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K
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# ifndef CLK_TCK
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# define CLK_TCK CLOCKS_PER_SEC
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# endif
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# endif
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#endif /* <time.h> included. */
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#if !defined __clock_t_defined && (defined _TIME_H || defined __need_clock_t)
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# define __clock_t_defined 1
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# include <bits/types.h>
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__BEGIN_NAMESPACE_STD
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/* Returned by `clock'. */
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typedef __clock_t clock_t;
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__END_NAMESPACE_STD
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#if defined __USE_XOPEN || defined __USE_POSIX
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__USING_NAMESPACE_STD(clock_t)
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#endif
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#endif /* clock_t not defined and <time.h> or need clock_t. */
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#undef __need_clock_t
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#if !defined __time_t_defined && (defined _TIME_H || defined __need_time_t)
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# define __time_t_defined 1
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# include <bits/types.h>
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__BEGIN_NAMESPACE_STD
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/* Returned by `time'. */
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typedef __time_t time_t;
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__END_NAMESPACE_STD
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#ifdef __USE_POSIX
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__USING_NAMESPACE_STD(time_t)
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#endif
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#endif /* time_t not defined and <time.h> or need time_t. */
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#undef __need_time_t
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#if !defined __clockid_t_defined && \
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((defined _TIME_H && defined __USE_POSIX199309) || defined __need_clockid_t)
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# define __clockid_t_defined 1
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# include <bits/types.h>
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/* Clock ID used in clock and timer functions. */
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typedef __clockid_t clockid_t;
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#endif /* clockid_t not defined and <time.h> or need clockid_t. */
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#undef __clockid_time_t
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#if !defined __timer_t_defined && \
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((defined _TIME_H && defined __USE_POSIX199309) || defined __need_timer_t)
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# define __timer_t_defined 1
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# include <bits/types.h>
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/* Timer ID returned by `timer_create'. */
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typedef __timer_t timer_t;
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#endif /* timer_t not defined and <time.h> or need timer_t. */
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#undef __need_timer_t
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#if (!defined __timespec_defined \
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&& ((defined _TIME_H \
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&& (defined __USE_POSIX199309 \
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|| defined __USE_ISOC11)) \
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|| defined __need_timespec))
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# define __timespec_defined 1
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# include <bits/types.h> /* This defines __time_t for us. */
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/* POSIX.1b structure for a time value. This is like a `struct timeval' but
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has nanoseconds instead of microseconds. */
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struct timespec
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{
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__time_t tv_sec; /* Seconds. */
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__syscall_slong_t tv_nsec; /* Nanoseconds. */
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};
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#endif /* timespec not defined and <time.h> or need timespec. */
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#undef __need_timespec
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#ifdef _TIME_H
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__BEGIN_NAMESPACE_STD
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/* Used by other time functions. */
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struct tm
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{
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int tm_sec; /* Seconds. [0-60] (1 leap second) */
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int tm_min; /* Minutes. [0-59] */
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int tm_hour; /* Hours. [0-23] */
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int tm_mday; /* Day. [1-31] */
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int tm_mon; /* Month. [0-11] */
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int tm_year; /* Year - 1900. */
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int tm_wday; /* Day of week. [0-6] */
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int tm_yday; /* Days in year.[0-365] */
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int tm_isdst; /* DST. [-1/0/1]*/
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# ifdef __USE_MISC
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long int tm_gmtoff; /* Seconds east of UTC. */
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const char *tm_zone; /* Timezone abbreviation. */
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# else
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long int __tm_gmtoff; /* Seconds east of UTC. */
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const char *__tm_zone; /* Timezone abbreviation. */
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# endif
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};
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__END_NAMESPACE_STD
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#if defined __USE_XOPEN || defined __USE_POSIX
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__USING_NAMESPACE_STD(tm)
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#endif
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# ifdef __USE_POSIX199309
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/* POSIX.1b structure for timer start values and intervals. */
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struct itimerspec
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{
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struct timespec it_interval;
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struct timespec it_value;
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};
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/* We can use a simple forward declaration. */
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struct sigevent;
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# endif /* POSIX.1b */
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# ifdef __USE_XOPEN2K
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# ifndef __pid_t_defined
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typedef __pid_t pid_t;
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# define __pid_t_defined
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# endif
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# endif
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# ifdef __USE_ISOC11
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/* Time base values for timespec_get. */
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# define TIME_UTC 1
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# endif
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__BEGIN_NAMESPACE_STD
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/* Time used by the program so far (user time + system time).
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The result / CLOCKS_PER_SECOND is program time in seconds. */
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extern clock_t clock (void) __THROW;
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/* Return the current time and put it in *TIMER if TIMER is not NULL. */
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extern time_t time (time_t *__timer) __THROW;
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/* Return the difference between TIME1 and TIME0. */
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extern double difftime (time_t __time1, time_t __time0)
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__THROW __attribute__ ((__const__));
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/* Return the `time_t' representation of TP and normalize TP. */
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extern time_t mktime (struct tm *__tp) __THROW;
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/* Format TP into S according to FORMAT.
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Write no more than MAXSIZE characters and return the number
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of characters written, or 0 if it would exceed MAXSIZE. */
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extern size_t strftime (char *__restrict __s, size_t __maxsize,
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const char *__restrict __format,
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const struct tm *__restrict __tp) __THROW;
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__END_NAMESPACE_STD
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# ifdef __USE_XOPEN
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/* Parse S according to FORMAT and store binary time information in TP.
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The return value is a pointer to the first unparsed character in S. */
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extern char *strptime (const char *__restrict __s,
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const char *__restrict __fmt, struct tm *__tp)
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__THROW;
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# endif
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# ifdef __USE_XOPEN2K8
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/* Similar to the two functions above but take the information from
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the provided locale and not the global locale. */
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# include <xlocale.h>
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extern size_t strftime_l (char *__restrict __s, size_t __maxsize,
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const char *__restrict __format,
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const struct tm *__restrict __tp,
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__locale_t __loc) __THROW;
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# endif
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# ifdef __USE_GNU
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extern char *strptime_l (const char *__restrict __s,
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const char *__restrict __fmt, struct tm *__tp,
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__locale_t __loc) __THROW;
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# endif
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__BEGIN_NAMESPACE_STD
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/* Return the `struct tm' representation of *TIMER
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in Universal Coordinated Time (aka Greenwich Mean Time). */
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extern struct tm *gmtime (const time_t *__timer) __THROW;
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/* Return the `struct tm' representation
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of *TIMER in the local timezone. */
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extern struct tm *localtime (const time_t *__timer) __THROW;
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__END_NAMESPACE_STD
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# ifdef __USE_POSIX
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/* Return the `struct tm' representation of *TIMER in UTC,
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using *TP to store the result. */
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extern struct tm *gmtime_r (const time_t *__restrict __timer,
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struct tm *__restrict __tp) __THROW;
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/* Return the `struct tm' representation of *TIMER in local time,
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using *TP to store the result. */
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extern struct tm *localtime_r (const time_t *__restrict __timer,
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struct tm *__restrict __tp) __THROW;
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# endif /* POSIX */
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__BEGIN_NAMESPACE_STD
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/* Return a string of the form "Day Mon dd hh:mm:ss yyyy\n"
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that is the representation of TP in this format. */
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extern char *asctime (const struct tm *__tp) __THROW;
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/* Equivalent to `asctime (localtime (timer))'. */
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extern char *ctime (const time_t *__timer) __THROW;
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__END_NAMESPACE_STD
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# ifdef __USE_POSIX
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/* Reentrant versions of the above functions. */
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/* Return in BUF a string of the form "Day Mon dd hh:mm:ss yyyy\n"
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that is the representation of TP in this format. */
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extern char *asctime_r (const struct tm *__restrict __tp,
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char *__restrict __buf) __THROW;
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/* Equivalent to `asctime_r (localtime_r (timer, *TMP*), buf)'. */
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extern char *ctime_r (const time_t *__restrict __timer,
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char *__restrict __buf) __THROW;
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# endif /* POSIX */
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/* Defined in localtime.c. */
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extern char *__tzname[2]; /* Current timezone names. */
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extern int __daylight; /* If daylight-saving time is ever in use. */
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extern long int __timezone; /* Seconds west of UTC. */
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# ifdef __USE_POSIX
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/* Same as above. */
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extern char *tzname[2];
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/* Set time conversion information from the TZ environment variable.
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If TZ is not defined, a locale-dependent default is used. */
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extern void tzset (void) __THROW;
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# endif
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# if defined __USE_MISC || defined __USE_XOPEN
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extern int daylight;
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extern long int timezone;
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# endif
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# ifdef __USE_MISC
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/* Set the system time to *WHEN.
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This call is restricted to the superuser. */
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extern int stime (const time_t *__when) __THROW;
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# endif
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/* Nonzero if YEAR is a leap year (every 4 years,
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except every 100th isn't, and every 400th is). */
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# define __isleap(year) \
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((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
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# ifdef __USE_MISC
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/* Miscellaneous functions many Unices inherited from the public domain
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localtime package. These are included only for compatibility. */
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/* Like `mktime', but for TP represents Universal Time, not local time. */
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extern time_t timegm (struct tm *__tp) __THROW;
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/* Another name for `mktime'. */
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extern time_t timelocal (struct tm *__tp) __THROW;
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/* Return the number of days in YEAR. */
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extern int dysize (int __year) __THROW __attribute__ ((__const__));
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# endif
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# ifdef __USE_POSIX199309
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/* Pause execution for a number of nanoseconds.
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This function is a cancellation point and therefore not marked with
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__THROW. */
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extern int nanosleep (const struct timespec *__requested_time,
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struct timespec *__remaining);
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/* Get resolution of clock CLOCK_ID. */
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extern int clock_getres (clockid_t __clock_id, struct timespec *__res) __THROW;
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/* Get current value of clock CLOCK_ID and store it in TP. */
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extern int clock_gettime (clockid_t __clock_id, struct timespec *__tp) __THROW;
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/* Set clock CLOCK_ID to value TP. */
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extern int clock_settime (clockid_t __clock_id, const struct timespec *__tp)
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__THROW;
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# ifdef __USE_XOPEN2K
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/* High-resolution sleep with the specified clock.
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This function is a cancellation point and therefore not marked with
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__THROW. */
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extern int clock_nanosleep (clockid_t __clock_id, int __flags,
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const struct timespec *__req,
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struct timespec *__rem);
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/* Return clock ID for CPU-time clock. */
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extern int clock_getcpuclockid (pid_t __pid, clockid_t *__clock_id) __THROW;
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# endif
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/* Create new per-process timer using CLOCK_ID. */
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extern int timer_create (clockid_t __clock_id,
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struct sigevent *__restrict __evp,
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timer_t *__restrict __timerid) __THROW;
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/* Delete timer TIMERID. */
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extern int timer_delete (timer_t __timerid) __THROW;
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/* Set timer TIMERID to VALUE, returning old value in OVALUE. */
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extern int timer_settime (timer_t __timerid, int __flags,
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const struct itimerspec *__restrict __value,
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struct itimerspec *__restrict __ovalue) __THROW;
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/* Get current value of timer TIMERID and store it in VALUE. */
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extern int timer_gettime (timer_t __timerid, struct itimerspec *__value)
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__THROW;
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/* Get expiration overrun for timer TIMERID. */
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extern int timer_getoverrun (timer_t __timerid) __THROW;
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# endif
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# ifdef __USE_ISOC11
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/* Set TS to calendar time based in time base BASE. */
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extern int timespec_get (struct timespec *__ts, int __base)
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__THROW __nonnull ((1));
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# endif
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# ifdef __USE_XOPEN_EXTENDED
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/* Set to one of the following values to indicate an error.
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1 the DATEMSK environment variable is null or undefined,
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2 the template file cannot be opened for reading,
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3 failed to get file status information,
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4 the template file is not a regular file,
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5 an error is encountered while reading the template file,
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6 memory allication failed (not enough memory available),
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7 there is no line in the template that matches the input,
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8 invalid input specification Example: February 31 or a time is
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specified that can not be represented in a time_t (representing
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the time in seconds since 00:00:00 UTC, January 1, 1970) */
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extern int getdate_err;
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/* Parse the given string as a date specification and return a value
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representing the value. The templates from the file identified by
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|
the environment variable DATEMSK are used. In case of an error
|
|
`getdate_err' is set.
|
|
|
|
This function is a possible cancellation point and therefore not
|
|
marked with __THROW. */
|
|
extern struct tm *getdate (const char *__string);
|
|
# endif
|
|
|
|
# ifdef __USE_GNU
|
|
/* Since `getdate' is not reentrant because of the use of `getdate_err'
|
|
and the static buffer to return the result in, we provide a thread-safe
|
|
variant. The functionality is the same. The result is returned in
|
|
the buffer pointed to by RESBUFP and in case of an error the return
|
|
value is != 0 with the same values as given above for `getdate_err'.
|
|
|
|
This function is not part of POSIX and therefore no official
|
|
cancellation point. But due to similarity with an POSIX interface
|
|
or due to the implementation it is a cancellation point and
|
|
therefore not marked with __THROW. */
|
|
extern int getdate_r (const char *__restrict __string,
|
|
struct tm *__restrict __resbufp);
|
|
# endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* <time.h> included. */
|
|
|
|
#endif /* <time.h> not already included. */
|