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Added missing files

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This commit is contained in:
Nikos Mavrogiannopoulos
2013-02-01 19:53:41 +01:00
parent 65a3ac4cb4
commit 035b81209d
14 changed files with 1402 additions and 0 deletions
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48
gl/gettime.c Normal file
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/* gettime -- get the system clock
Copyright (C) 2002, 2004-2007, 2009-2013 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/>. */
/* Written by Paul Eggert. */
#include <config.h>
#include "timespec.h"
#include <sys/time.h>
/* Get the system time into *TS. */
void
gettime (struct timespec *ts)
{
#if HAVE_NANOTIME
nanotime (ts);
#else
# if defined CLOCK_REALTIME && HAVE_CLOCK_GETTIME
if (clock_gettime (CLOCK_REALTIME, ts) == 0)
return;
# endif
{
struct timeval tv;
gettimeofday (&tv, NULL);
ts->tv_sec = tv.tv_sec;
ts->tv_nsec = tv.tv_usec * 1000;
}
#endif
}

154
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/* Provide gettimeofday for systems that don't have it or for which it's broken.
Copyright (C) 2001-2003, 2005-2007, 2009-2013 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/>. */
/* written by Jim Meyering */
#include <config.h>
/* Specification. */
#include <sys/time.h>
#include <time.h>
#if HAVE_SYS_TIMEB_H
# include <sys/timeb.h>
#endif
#if GETTIMEOFDAY_CLOBBERS_LOCALTIME || TZSET_CLOBBERS_LOCALTIME
/* Work around the bug in some systems whereby gettimeofday clobbers
the static buffer that localtime uses for its return value. The
gettimeofday function from Mac OS X 10.0.4 (i.e., Darwin 1.3.7) has
this problem. The tzset replacement is necessary for at least
Solaris 2.5, 2.5.1, and 2.6. */
static struct tm tm_zero_buffer;
static struct tm *localtime_buffer_addr = &tm_zero_buffer;
# undef localtime
extern struct tm *localtime (time_t const *);
# undef gmtime
extern struct tm *gmtime (time_t const *);
/* This is a wrapper for localtime. It is used only on systems for which
gettimeofday clobbers the static buffer used for localtime's result.
On the first call, record the address of the static buffer that
localtime uses for its result. */
struct tm *
rpl_localtime (time_t const *timep)
{
struct tm *tm = localtime (timep);
if (localtime_buffer_addr == &tm_zero_buffer)
localtime_buffer_addr = tm;
return tm;
}
/* Same as above, since gmtime and localtime use the same buffer. */
struct tm *
rpl_gmtime (time_t const *timep)
{
struct tm *tm = gmtime (timep);
if (localtime_buffer_addr == &tm_zero_buffer)
localtime_buffer_addr = tm;
return tm;
}
#endif /* GETTIMEOFDAY_CLOBBERS_LOCALTIME || TZSET_CLOBBERS_LOCALTIME */
#if TZSET_CLOBBERS_LOCALTIME
# undef tzset
extern void tzset (void);
/* This is a wrapper for tzset, for systems on which tzset may clobber
the static buffer used for localtime's result. */
void
rpl_tzset (void)
{
/* Save and restore the contents of the buffer used for localtime's
result around the call to tzset. */
struct tm save = *localtime_buffer_addr;
tzset ();
*localtime_buffer_addr = save;
}
#endif
/* This is a wrapper for gettimeofday. It is used only on systems
that lack this function, or whose implementation of this function
causes problems. */
int
gettimeofday (struct timeval *restrict tv, void *restrict tz)
{
#undef gettimeofday
#if HAVE_GETTIMEOFDAY
# if GETTIMEOFDAY_CLOBBERS_LOCALTIME
/* Save and restore the contents of the buffer used for localtime's
result around the call to gettimeofday. */
struct tm save = *localtime_buffer_addr;
# endif
# if defined timeval /* 'struct timeval' overridden by gnulib? */
# undef timeval
struct timeval otv;
int result = gettimeofday (&otv, (struct timezone *) tz);
if (result == 0)
{
tv->tv_sec = otv.tv_sec;
tv->tv_usec = otv.tv_usec;
}
# else
int result = gettimeofday (tv, (struct timezone *) tz);
# endif
# if GETTIMEOFDAY_CLOBBERS_LOCALTIME
*localtime_buffer_addr = save;
# endif
return result;
#else
# if HAVE__FTIME
struct _timeb timebuf;
_ftime (&timebuf);
tv->tv_sec = timebuf.time;
tv->tv_usec = timebuf.millitm * 1000;
# else
# if !defined OK_TO_USE_1S_CLOCK
# error "Only 1-second nominal clock resolution found. Is that intended?" \
"If so, compile with the -DOK_TO_USE_1S_CLOCK option."
# endif
tv->tv_sec = time (NULL);
tv->tv_usec = 0;
# endif
return 0;
#endif
}

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# clock_time.m4 serial 10
dnl Copyright (C) 2002-2006, 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# Check for clock_gettime and clock_settime, and set LIB_CLOCK_GETTIME.
# For a program named, say foo, you should add a line like the following
# in the corresponding Makefile.am file:
# foo_LDADD = $(LDADD) $(LIB_CLOCK_GETTIME)
AC_DEFUN([gl_CLOCK_TIME],
[
dnl Persuade glibc and Solaris <time.h> to declare these functions.
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
# Solaris 2.5.1 needs -lposix4 to get the clock_gettime function.
# Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4.
# Save and restore LIBS so e.g., -lrt, isn't added to it. Otherwise, *all*
# programs in the package would end up linked with that potentially-shared
# library, inducing unnecessary run-time overhead.
LIB_CLOCK_GETTIME=
AC_SUBST([LIB_CLOCK_GETTIME])
gl_saved_libs=$LIBS
AC_SEARCH_LIBS([clock_gettime], [rt posix4],
[test "$ac_cv_search_clock_gettime" = "none required" ||
LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime])
AC_CHECK_FUNCS([clock_gettime clock_settime])
LIBS=$gl_saved_libs
])

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dnl 'extern inline' a la ISO C99.
dnl Copyright 2012-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_EXTERN_INLINE],
[
AH_VERBATIM([extern_inline],
[/* _GL_INLINE is a portable alternative to ISO C99 plain 'inline'.
_GL_EXTERN_INLINE is a portable alternative to 'extern inline'.
_GL_INLINE_HEADER_BEGIN contains useful stuff to put
in an include file, before uses of _GL_INLINE.
It suppresses GCC's bogus "no previous prototype for 'FOO'" diagnostic,
when FOO is an inline function in the header; see
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>.
_GL_INLINE_HEADER_END contains useful stuff to put
in the same include file, after uses of _GL_INLINE.
Suppress the use of extern inline on Apple's platforms,
as Libc-825.25 (2012-09-19) is incompatible with it; see
<http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html>.
Perhaps Apple will fix this some day. */
#if ((__GNUC__ \
? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \
: 199901L <= __STDC_VERSION__) \
&& !defined __APPLE__)
# define _GL_INLINE inline
# define _GL_EXTERN_INLINE extern inline
#elif 2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __APPLE__
# if __GNUC_GNU_INLINE__
/* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */
# define _GL_INLINE extern inline __attribute__ ((__gnu_inline__))
# else
# define _GL_INLINE extern inline
# endif
# define _GL_EXTERN_INLINE extern
#else
# define _GL_INLINE static _GL_UNUSED
# define _GL_EXTERN_INLINE static _GL_UNUSED
#endif
#if 4 < __GNUC__ + (6 <= __GNUC_MINOR__)
# if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__
# define _GL_INLINE_HEADER_CONST_PRAGMA
# else
# define _GL_INLINE_HEADER_CONST_PRAGMA \
_Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"")
# endif
# define _GL_INLINE_HEADER_BEGIN \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \
_Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \
_GL_INLINE_HEADER_CONST_PRAGMA
# define _GL_INLINE_HEADER_END \
_Pragma ("GCC diagnostic pop")
#else
# define _GL_INLINE_HEADER_BEGIN
# define _GL_INLINE_HEADER_END
#endif])
])

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gl/m4/gettime.m4 Normal file
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# gettime.m4 serial 8
dnl Copyright (C) 2002, 2004-2006, 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_GETTIME],
[
dnl Prerequisites of lib/gettime.c.
AC_REQUIRE([gl_CLOCK_TIME])
AC_REQUIRE([gl_TIMESPEC])
AC_CHECK_FUNCS_ONCE([gettimeofday nanotime])
])

140
gl/m4/gettimeofday.m4 Normal file
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# serial 20
# Copyright (C) 2001-2003, 2005, 2007, 2009-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
dnl From Jim Meyering.
AC_DEFUN([gl_FUNC_GETTIMEOFDAY],
[
AC_REQUIRE([AC_C_RESTRICT])
AC_REQUIRE([gl_HEADER_SYS_TIME_H])
AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS])
AC_CHECK_FUNCS_ONCE([gettimeofday])
gl_gettimeofday_timezone=void
if test $ac_cv_func_gettimeofday != yes; then
HAVE_GETTIMEOFDAY=0
else
gl_FUNC_GETTIMEOFDAY_CLOBBER
AC_CACHE_CHECK([for gettimeofday with POSIX signature],
[gl_cv_func_gettimeofday_posix_signature],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/time.h>
struct timeval c;
int gettimeofday (struct timeval *restrict, void *restrict);
]],
[[/* glibc uses struct timezone * rather than the POSIX void *
if _GNU_SOURCE is defined. However, since the only portable
use of gettimeofday uses NULL as the second parameter, and
since the glibc definition is actually more typesafe, it is
not worth wrapping this to get a compliant signature. */
int (*f) (struct timeval *restrict, void *restrict)
= gettimeofday;
int x = f (&c, 0);
return !(x | c.tv_sec | c.tv_usec);
]])],
[gl_cv_func_gettimeofday_posix_signature=yes],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/time.h>
int gettimeofday (struct timeval *restrict, struct timezone *restrict);
]])],
[gl_cv_func_gettimeofday_posix_signature=almost],
[gl_cv_func_gettimeofday_posix_signature=no])])])
if test $gl_cv_func_gettimeofday_posix_signature = almost; then
gl_gettimeofday_timezone='struct timezone'
elif test $gl_cv_func_gettimeofday_posix_signature != yes; then
REPLACE_GETTIMEOFDAY=1
fi
dnl If we override 'struct timeval', we also have to override gettimeofday.
if test $REPLACE_STRUCT_TIMEVAL = 1; then
REPLACE_GETTIMEOFDAY=1
fi
m4_ifdef([gl_FUNC_TZSET_CLOBBER], [
gl_FUNC_TZSET_CLOBBER
case "$gl_cv_func_tzset_clobber" in
*yes)
REPLACE_GETTIMEOFDAY=1
gl_GETTIMEOFDAY_REPLACE_LOCALTIME
AC_DEFINE([tzset], [rpl_tzset],
[Define to rpl_tzset if the wrapper function should be used.])
AC_DEFINE([TZSET_CLOBBERS_LOCALTIME], [1],
[Define if tzset clobbers localtime's static buffer.])
;;
esac
])
fi
AC_DEFINE_UNQUOTED([GETTIMEOFDAY_TIMEZONE], [$gl_gettimeofday_timezone],
[Define this to 'void' or 'struct timezone' to match the system's
declaration of the second argument to gettimeofday.])
])
dnl See if gettimeofday clobbers the static buffer that localtime uses
dnl for its return value. The gettimeofday function from Mac OS X 10.0.4
dnl (i.e., Darwin 1.3.7) has this problem.
dnl
dnl If it does, then arrange to use gettimeofday and localtime only via
dnl the wrapper functions that work around the problem.
AC_DEFUN([gl_FUNC_GETTIMEOFDAY_CLOBBER],
[
AC_REQUIRE([gl_HEADER_SYS_TIME_H])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether gettimeofday clobbers localtime buffer],
[gl_cv_func_gettimeofday_clobber],
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <string.h>
#include <sys/time.h>
#include <time.h>
#include <stdlib.h>
]],
[[
time_t t = 0;
struct tm *lt;
struct tm saved_lt;
struct timeval tv;
lt = localtime (&t);
saved_lt = *lt;
gettimeofday (&tv, NULL);
return memcmp (lt, &saved_lt, sizeof (struct tm)) != 0;
]])],
[gl_cv_func_gettimeofday_clobber=no],
[gl_cv_func_gettimeofday_clobber=yes],
[# When cross-compiling:
case "$host_os" in
# Guess all is fine on glibc systems.
*-gnu*) gl_cv_func_gettimeofday_clobber="guessing no" ;;
# If we don't know, assume the worst.
*) gl_cv_func_gettimeofday_clobber="guessing yes" ;;
esac
])])
case "$gl_cv_func_gettimeofday_clobber" in
*yes)
REPLACE_GETTIMEOFDAY=1
gl_GETTIMEOFDAY_REPLACE_LOCALTIME
AC_DEFINE([GETTIMEOFDAY_CLOBBERS_LOCALTIME], [1],
[Define if gettimeofday clobbers the localtime buffer.])
;;
esac
])
AC_DEFUN([gl_GETTIMEOFDAY_REPLACE_LOCALTIME], [
AC_DEFINE([gmtime], [rpl_gmtime],
[Define to rpl_gmtime if the replacement function should be used.])
AC_DEFINE([localtime], [rpl_localtime],
[Define to rpl_localtime if the replacement function should be used.])
])
# Prerequisites of lib/gettimeofday.c.
AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [
AC_CHECK_HEADERS([sys/timeb.h])
AC_CHECK_FUNCS([_ftime])
])

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# sys_socket_h.m4 serial 23
dnl Copyright (C) 2005-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Simon Josefsson.
AC_DEFUN([gl_HEADER_SYS_SOCKET],
[
AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
AC_REQUIRE([AC_CANONICAL_HOST])
dnl On OSF/1, the functions recv(), send(), recvfrom(), sendto() have
dnl old-style declarations (with return type 'int' instead of 'ssize_t')
dnl unless _POSIX_PII_SOCKET is defined.
case "$host_os" in
osf*)
AC_DEFINE([_POSIX_PII_SOCKET], [1],
[Define to 1 in order to get the POSIX compatible declarations
of socket functions.])
;;
esac
AC_CACHE_CHECK([whether <sys/socket.h> is self-contained],
[gl_cv_header_sys_socket_h_selfcontained],
[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]], [[]])],
[gl_cv_header_sys_socket_h_selfcontained=yes],
[gl_cv_header_sys_socket_h_selfcontained=no])
])
if test $gl_cv_header_sys_socket_h_selfcontained = yes; then
dnl If the shutdown function exists, <sys/socket.h> should define
dnl SHUT_RD, SHUT_WR, SHUT_RDWR.
AC_CHECK_FUNCS([shutdown])
if test $ac_cv_func_shutdown = yes; then
AC_CACHE_CHECK([whether <sys/socket.h> defines the SHUT_* macros],
[gl_cv_header_sys_socket_h_shut],
[
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <sys/socket.h>]],
[[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])],
[gl_cv_header_sys_socket_h_shut=yes],
[gl_cv_header_sys_socket_h_shut=no])
])
if test $gl_cv_header_sys_socket_h_shut = no; then
SYS_SOCKET_H='sys/socket.h'
fi
fi
fi
# We need to check for ws2tcpip.h now.
gl_PREREQ_SYS_H_SOCKET
AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[
/* sys/types.h is not needed according to POSIX, but the
sys/socket.h in i386-unknown-freebsd4.10 and
powerpc-apple-darwin5.5 required it. */
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
])
if test $ac_cv_type_struct_sockaddr_storage = no; then
HAVE_STRUCT_SOCKADDR_STORAGE=0
fi
if test $ac_cv_type_sa_family_t = no; then
HAVE_SA_FAMILY_T=0
fi
if test $ac_cv_type_struct_sockaddr_storage != no; then
AC_CHECK_MEMBERS([struct sockaddr_storage.ss_family],
[],
[HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=0],
[#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
])
fi
if test $HAVE_STRUCT_SOCKADDR_STORAGE = 0 || test $HAVE_SA_FAMILY_T = 0 \
|| test $HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = 0; then
SYS_SOCKET_H='sys/socket.h'
fi
gl_PREREQ_SYS_H_WINSOCK2
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use.
gl_WARN_ON_USE_PREPARE([[
/* Some systems require prerequisite headers. */
#include <sys/types.h>
#include <sys/socket.h>
]], [socket connect accept bind getpeername getsockname getsockopt
listen recv send recvfrom sendto setsockopt shutdown accept4])
])
AC_DEFUN([gl_PREREQ_SYS_H_SOCKET],
[
dnl Check prerequisites of the <sys/socket.h> replacement.
AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])
gl_CHECK_NEXT_HEADERS([sys/socket.h])
if test $ac_cv_header_sys_socket_h = yes; then
HAVE_SYS_SOCKET_H=1
HAVE_WS2TCPIP_H=0
else
HAVE_SYS_SOCKET_H=0
if test $ac_cv_header_ws2tcpip_h = yes; then
HAVE_WS2TCPIP_H=1
else
HAVE_WS2TCPIP_H=0
fi
fi
AC_SUBST([HAVE_SYS_SOCKET_H])
AC_SUBST([HAVE_WS2TCPIP_H])
])
# Common prerequisites of the <sys/socket.h> replacement and of the
# <sys/select.h> replacement.
# Sets and substitutes HAVE_WINSOCK2_H.
AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2],
[
m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])])
m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])])
AC_CHECK_HEADERS_ONCE([sys/socket.h])
if test $ac_cv_header_sys_socket_h != yes; then
dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
dnl the check for those headers unconditional; yet cygwin reports
dnl that the headers are present but cannot be compiled (since on
dnl cygwin, all socket information should come from sys/socket.h).
AC_CHECK_HEADERS([winsock2.h])
fi
if test "$ac_cv_header_winsock2_h" = yes; then
HAVE_WINSOCK2_H=1
UNISTD_H_HAVE_WINSOCK2_H=1
SYS_IOCTL_H_HAVE_WINSOCK2_H=1
else
HAVE_WINSOCK2_H=0
fi
AC_SUBST([HAVE_WINSOCK2_H])
])
AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS],
[
GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET])
GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT])
GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT])
GNULIB_BIND=0; AC_SUBST([GNULIB_BIND])
GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME])
GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME])
GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT])
GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN])
GNULIB_RECV=0; AC_SUBST([GNULIB_RECV])
GNULIB_SEND=0; AC_SUBST([GNULIB_SEND])
GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM])
GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO])
GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT])
GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN])
GNULIB_ACCEPT4=0; AC_SUBST([GNULIB_ACCEPT4])
HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE])
HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=1;
AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY])
HAVE_SA_FAMILY_T=1; AC_SUBST([HAVE_SA_FAMILY_T])
HAVE_ACCEPT4=1; AC_SUBST([HAVE_ACCEPT4])
])

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# Configure a replacement for <sys/time.h>.
# serial 8
# Copyright (C) 2007, 2009-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# Written by Paul Eggert and Martin Lambers.
AC_DEFUN([gl_HEADER_SYS_TIME_H],
[
dnl Use AC_REQUIRE here, so that the REPLACE_GETTIMEOFDAY=0 statement
dnl below is expanded once only, before all REPLACE_GETTIMEOFDAY=1
dnl statements that occur in other macros.
AC_REQUIRE([gl_HEADER_SYS_TIME_H_BODY])
])
AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY],
[
AC_REQUIRE([AC_C_RESTRICT])
AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS])
AC_CHECK_HEADERS_ONCE([sys/time.h])
gl_CHECK_NEXT_HEADERS([sys/time.h])
if test $ac_cv_header_sys_time_h != yes; then
HAVE_SYS_TIME_H=0
fi
dnl On native Windows with MSVC, 'struct timeval' is defined in <winsock2.h>
dnl only. So include that header in the list.
gl_PREREQ_SYS_H_WINSOCK2
AC_CACHE_CHECK([for struct timeval], [gl_cv_sys_struct_timeval],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#if HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <time.h>
#if HAVE_WINSOCK2_H
# include <winsock2.h>
#endif
]],
[[static struct timeval x; x.tv_sec = x.tv_usec;]])],
[gl_cv_sys_struct_timeval=yes],
[gl_cv_sys_struct_timeval=no])
])
if test $gl_cv_sys_struct_timeval != yes; then
HAVE_STRUCT_TIMEVAL=0
else
dnl On native Windows with a 64-bit 'time_t', 'struct timeval' is defined
dnl (in <sys/time.h> and <winsock2.h> for mingw64, in <winsock2.h> only
dnl for MSVC) with a tv_sec field of type 'long' (32-bit!), which is
dnl smaller than the 'time_t' type mandated by POSIX.
dnl On OpenBSD 5.1 amd64, tv_sec is 64 bits and time_t 32 bits, but
dnl that is good enough.
AC_CACHE_CHECK([for wide-enough struct timeval.tv_sec member],
[gl_cv_sys_struct_timeval_tv_sec],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#if HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <time.h>
#if HAVE_WINSOCK2_H
# include <winsock2.h>
#endif
]],
[[static struct timeval x;
typedef int verify_tv_sec_type[
sizeof (time_t) <= sizeof x.tv_sec ? 1 : -1
];
]])],
[gl_cv_sys_struct_timeval_tv_sec=yes],
[gl_cv_sys_struct_timeval_tv_sec=no])
])
if test $gl_cv_sys_struct_timeval_tv_sec != yes; then
REPLACE_STRUCT_TIMEVAL=1
fi
fi
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use.
gl_WARN_ON_USE_PREPARE([[
#if HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <time.h>
]], [gettimeofday])
])
AC_DEFUN([gl_SYS_TIME_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_HEADER_SYS_TIME_H_DEFAULTS],
[
GNULIB_GETTIMEOFDAY=0; AC_SUBST([GNULIB_GETTIMEOFDAY])
dnl Assume POSIX behavior unless another module says otherwise.
HAVE_GETTIMEOFDAY=1; AC_SUBST([HAVE_GETTIMEOFDAY])
HAVE_STRUCT_TIMEVAL=1; AC_SUBST([HAVE_STRUCT_TIMEVAL])
HAVE_SYS_TIME_H=1; AC_SUBST([HAVE_SYS_TIME_H])
REPLACE_GETTIMEOFDAY=0; AC_SUBST([REPLACE_GETTIMEOFDAY])
REPLACE_STRUCT_TIMEVAL=0; AC_SUBST([REPLACE_STRUCT_TIMEVAL])
])

109
gl/m4/time_h.m4 Normal file
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@@ -0,0 +1,109 @@
# Configure a more-standard replacement for <time.h>.
# Copyright (C) 2000-2001, 2003-2007, 2009-2013 Free Software Foundation, Inc.
# serial 7
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# Written by Paul Eggert and Jim Meyering.
AC_DEFUN([gl_HEADER_TIME_H],
[
dnl Use AC_REQUIRE here, so that the default behavior below is expanded
dnl once only, before all statements that occur in other macros.
AC_REQUIRE([gl_HEADER_TIME_H_BODY])
])
AC_DEFUN([gl_HEADER_TIME_H_BODY],
[
AC_REQUIRE([AC_C_RESTRICT])
AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
gl_NEXT_HEADERS([time.h])
AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC])
])
dnl Check whether 'struct timespec' is declared
dnl in time.h, sys/time.h, or pthread.h.
AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
[
AC_CHECK_HEADERS_ONCE([sys/time.h])
AC_CACHE_CHECK([for struct timespec in <time.h>],
[gl_cv_sys_struct_timespec_in_time_h],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <time.h>
]],
[[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
[gl_cv_sys_struct_timespec_in_time_h=yes],
[gl_cv_sys_struct_timespec_in_time_h=no])])
TIME_H_DEFINES_STRUCT_TIMESPEC=0
SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0
PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0
if test $gl_cv_sys_struct_timespec_in_time_h = yes; then
TIME_H_DEFINES_STRUCT_TIMESPEC=1
else
AC_CACHE_CHECK([for struct timespec in <sys/time.h>],
[gl_cv_sys_struct_timespec_in_sys_time_h],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/time.h>
]],
[[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
[gl_cv_sys_struct_timespec_in_sys_time_h=yes],
[gl_cv_sys_struct_timespec_in_sys_time_h=no])])
if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then
SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1
else
AC_CACHE_CHECK([for struct timespec in <pthread.h>],
[gl_cv_sys_struct_timespec_in_pthread_h],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>
]],
[[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
[gl_cv_sys_struct_timespec_in_pthread_h=yes],
[gl_cv_sys_struct_timespec_in_pthread_h=no])])
if test $gl_cv_sys_struct_timespec_in_pthread_h = yes; then
PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1
fi
fi
fi
AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC])
AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC])
AC_SUBST([PTHREAD_H_DEFINES_STRUCT_TIMESPEC])
])
AC_DEFUN([gl_TIME_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS],
[
GNULIB_MKTIME=0; AC_SUBST([GNULIB_MKTIME])
GNULIB_NANOSLEEP=0; AC_SUBST([GNULIB_NANOSLEEP])
GNULIB_STRPTIME=0; AC_SUBST([GNULIB_STRPTIME])
GNULIB_TIMEGM=0; AC_SUBST([GNULIB_TIMEGM])
GNULIB_TIME_R=0; AC_SUBST([GNULIB_TIME_R])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_DECL_LOCALTIME_R=1; AC_SUBST([HAVE_DECL_LOCALTIME_R])
HAVE_NANOSLEEP=1; AC_SUBST([HAVE_NANOSLEEP])
HAVE_STRPTIME=1; AC_SUBST([HAVE_STRPTIME])
HAVE_TIMEGM=1; AC_SUBST([HAVE_TIMEGM])
dnl If another module says to replace or to not replace, do that.
dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK;
dnl this lets maintainers check for portability.
REPLACE_LOCALTIME_R=GNULIB_PORTCHECK; AC_SUBST([REPLACE_LOCALTIME_R])
REPLACE_MKTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_MKTIME])
REPLACE_NANOSLEEP=GNULIB_PORTCHECK; AC_SUBST([REPLACE_NANOSLEEP])
REPLACE_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM])
])

11
gl/m4/timespec.m4 Normal file
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@@ -0,0 +1,11 @@
#serial 15
# Copyright (C) 2000-2001, 2003-2007, 2009-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
dnl From Jim Meyering
AC_DEFUN([gl_TIMESPEC], [:])

205
gl/sys_time.in.h Normal file
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@@ -0,0 +1,205 @@
/* Provide a more complete sys/time.h.
Copyright (C) 2007-2013 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/>. */
/* Written by Paul Eggert. */
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
#if defined _@GUARD_PREFIX@_SYS_TIME_H
/* Simply delegate to the system's header, without adding anything. */
# if @HAVE_SYS_TIME_H@
# @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
# endif
#else
# define _@GUARD_PREFIX@_SYS_TIME_H
# if @HAVE_SYS_TIME_H@
# @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
# else
# include <time.h>
# endif
/* On native Windows with MSVC, get the 'struct timeval' type.
Also, on native Windows with a 64-bit time_t, where we are overriding the
'struct timeval' type, get all declarations of system functions whose
signature contains 'struct timeval'. */
# if (defined _MSC_VER || @REPLACE_STRUCT_TIMEVAL@) && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
# define _GL_INCLUDING_WINSOCK2_H
# include <winsock2.h>
# undef _GL_INCLUDING_WINSOCK2_H
# endif
/* 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. */
# ifdef __cplusplus
extern "C" {
# endif
# if !@HAVE_STRUCT_TIMEVAL@ || @REPLACE_STRUCT_TIMEVAL@
# if @REPLACE_STRUCT_TIMEVAL@
# define timeval rpl_timeval
# endif
# if !GNULIB_defined_struct_timeval
struct timeval
{
time_t tv_sec;
long int tv_usec;
};
# define GNULIB_defined_struct_timeval 1
# endif
# endif
# ifdef __cplusplus
}
# endif
# if @GNULIB_GETTIMEOFDAY@
# if @REPLACE_GETTIMEOFDAY@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef gettimeofday
# define gettimeofday rpl_gettimeofday
# endif
_GL_FUNCDECL_RPL (gettimeofday, int,
(struct timeval *restrict, void *restrict)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (gettimeofday, int,
(struct timeval *restrict, void *restrict));
# else
# if !@HAVE_GETTIMEOFDAY@
_GL_FUNCDECL_SYS (gettimeofday, int,
(struct timeval *restrict, void *restrict)
_GL_ARG_NONNULL ((1)));
# endif
/* Need to cast, because on glibc systems, by default, the second argument is
struct timezone *. */
_GL_CXXALIAS_SYS_CAST (gettimeofday, int,
(struct timeval *restrict, void *restrict));
# endif
_GL_CXXALIASWARN (gettimeofday);
# elif defined GNULIB_POSIXCHECK
# undef gettimeofday
# if HAVE_RAW_DECL_GETTIMEOFDAY
_GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
"use gnulib module gettimeofday for portability");
# endif
# endif
/* Hide some function declarations from <winsock2.h>. */
# if defined _MSC_VER && @HAVE_WINSOCK2_H@
# if !defined _@GUARD_PREFIX@_UNISTD_H
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef close
# define close close_used_without_including_unistd_h
# else
_GL_WARN_ON_USE (close,
"close() used without including <unistd.h>");
# endif
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef gethostname
# define gethostname gethostname_used_without_including_unistd_h
# else
_GL_WARN_ON_USE (gethostname,
"gethostname() used without including <unistd.h>");
# endif
# endif
# if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef socket
# define socket socket_used_without_including_sys_socket_h
# undef connect
# define connect connect_used_without_including_sys_socket_h
# undef accept
# define accept accept_used_without_including_sys_socket_h
# undef bind
# define bind bind_used_without_including_sys_socket_h
# undef getpeername
# define getpeername getpeername_used_without_including_sys_socket_h
# undef getsockname
# define getsockname getsockname_used_without_including_sys_socket_h
# undef getsockopt
# define getsockopt getsockopt_used_without_including_sys_socket_h
# undef listen
# define listen listen_used_without_including_sys_socket_h
# undef recv
# define recv recv_used_without_including_sys_socket_h
# undef send
# define send send_used_without_including_sys_socket_h
# undef recvfrom
# define recvfrom recvfrom_used_without_including_sys_socket_h
# undef sendto
# define sendto sendto_used_without_including_sys_socket_h
# undef setsockopt
# define setsockopt setsockopt_used_without_including_sys_socket_h
# undef shutdown
# define shutdown shutdown_used_without_including_sys_socket_h
# else
_GL_WARN_ON_USE (socket,
"socket() used without including <sys/socket.h>");
_GL_WARN_ON_USE (connect,
"connect() used without including <sys/socket.h>");
_GL_WARN_ON_USE (accept,
"accept() used without including <sys/socket.h>");
_GL_WARN_ON_USE (bind,
"bind() used without including <sys/socket.h>");
_GL_WARN_ON_USE (getpeername,
"getpeername() used without including <sys/socket.h>");
_GL_WARN_ON_USE (getsockname,
"getsockname() used without including <sys/socket.h>");
_GL_WARN_ON_USE (getsockopt,
"getsockopt() used without including <sys/socket.h>");
_GL_WARN_ON_USE (listen,
"listen() used without including <sys/socket.h>");
_GL_WARN_ON_USE (recv,
"recv() used without including <sys/socket.h>");
_GL_WARN_ON_USE (send,
"send() used without including <sys/socket.h>");
_GL_WARN_ON_USE (recvfrom,
"recvfrom() used without including <sys/socket.h>");
_GL_WARN_ON_USE (sendto,
"sendto() used without including <sys/socket.h>");
_GL_WARN_ON_USE (setsockopt,
"setsockopt() used without including <sys/socket.h>");
_GL_WARN_ON_USE (shutdown,
"shutdown() used without including <sys/socket.h>");
# endif
# endif
# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef select
# define select select_used_without_including_sys_select_h
# else
_GL_WARN_ON_USE (select,
"select() used without including <sys/select.h>");
# endif
# endif
# endif
#endif /* _@GUARD_PREFIX@_SYS_TIME_H */

248
gl/time.in.h Normal file
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@@ -0,0 +1,248 @@
/* A more-standard <time.h>.
Copyright (C) 2007-2013 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. 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 _@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 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>
/* The pthreads-win32 <pthread.h> also defines a couple of broken macros. */
# undef asctime_r
# undef ctime_r
# undef gmtime_r
# undef localtime_r
# undef rand_r
# undef strtok_r
# 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
/* 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
/* 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

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#include <config.h>
#define _GL_TIMESPEC_INLINE _GL_EXTERN_INLINE
#include "timespec.h"

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gl/timespec.h Normal file
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/* timespec -- System time interface
Copyright (C) 2000, 2002, 2004-2005, 2007, 2009-2013 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 ! defined TIMESPEC_H
# define TIMESPEC_H
# include <time.h>
_GL_INLINE_HEADER_BEGIN
#ifndef _GL_TIMESPEC_INLINE
# define _GL_TIMESPEC_INLINE _GL_INLINE
#endif
/* Return negative, zero, positive if A < B, A == B, A > B, respectively.
For each time stamp T, this code assumes that either:
* T.tv_nsec is in the range 0..999999999; or
* T.tv_sec corresponds to a valid leap second on a host that supports
leap seconds, and T.tv_nsec is in the range 1000000000..1999999999; or
* T.tv_sec is the minimum time_t value and T.tv_nsec is -1; or
T.tv_sec is the maximum time_t value and T.tv_nsec is 2000000000.
This allows for special struct timespec values that are less or
greater than all possible valid time stamps.
In all these cases, it is safe to subtract two tv_nsec values and
convert the result to integer without worrying about overflow on
any platform of interest to the GNU project, since all such
platforms have 32-bit int or wider.
Replacing "(int) (a.tv_nsec - b.tv_nsec)" with something like
"a.tv_nsec < b.tv_nsec ? -1 : a.tv_nsec > b.tv_nsec" would cause
this function to work in some cases where the above assumption is
violated, but not in all cases (e.g., a.tv_sec==1, a.tv_nsec==-2,
b.tv_sec==0, b.tv_nsec==999999999) and is arguably not worth the
extra instructions. Using a subtraction has the advantage of
detecting some invalid cases on platforms that detect integer
overflow.
The (int) cast avoids a gcc -Wconversion warning. */
_GL_TIMESPEC_INLINE int
timespec_cmp (struct timespec a, struct timespec b)
{
return (a.tv_sec < b.tv_sec ? -1
: a.tv_sec > b.tv_sec ? 1
: (int) (a.tv_nsec - b.tv_nsec));
}
/* Return -1, 0, 1, depending on the sign of A. A.tv_nsec must be
nonnegative. */
_GL_TIMESPEC_INLINE int
timespec_sign (struct timespec a)
{
return a.tv_sec < 0 ? -1 : a.tv_sec || a.tv_nsec;
}
struct timespec timespec_add (struct timespec, struct timespec)
_GL_ATTRIBUTE_CONST;
struct timespec timespec_sub (struct timespec, struct timespec)
_GL_ATTRIBUTE_CONST;
struct timespec dtotimespec (double)
_GL_ATTRIBUTE_CONST;
/* Return an approximation to A, of type 'double'. */
_GL_TIMESPEC_INLINE double
timespectod (struct timespec a)
{
return a.tv_sec + a.tv_nsec / 1e9;
}
void gettime (struct timespec *);
int settime (struct timespec const *);
_GL_INLINE_HEADER_END
#endif