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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/* System-dependent timing definitions. Linux/x86 version.
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Copyright (C) 1996, 1997, 1999, 2000, 2001 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/*
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* Never include this file directly; use <time.h> instead.
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*/
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#ifndef __need_timeval
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# ifndef _BITS_TIME_H
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# define _BITS_TIME_H 1
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/* ISO/IEC 9899:1990 7.12.1: <time.h>
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The macro `CLOCKS_PER_SEC' is the number per second of the value
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returned by the `clock' function. */
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/* CAE XSH, Issue 4, Version 2: <time.h>
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The value of CLOCKS_PER_SEC is required to be 1 million on all
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XSI-conformant systems. */
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# define CLOCKS_PER_SEC 1000000l
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# if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K
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/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK
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presents the real value for clock ticks per second for the system. */
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# include <bits/types.h>
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extern long int __sysconf (int);
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# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */
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# endif
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# ifdef __USE_POSIX199309
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/* Identifier for system-wide realtime clock. */
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# define CLOCK_REALTIME 0
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/* High-resolution timer from the CPU. */
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# define CLOCK_PROCESS_CPUTIME_ID 2
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/* Thread-specific CPU-time clock. */
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# define CLOCK_THREAD_CPUTIME_ID 3
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/* Flag to indicate time is absolute. */
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# define TIMER_ABSTIME 1
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# endif
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# endif /* bits/time.h */
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#endif
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#ifdef __need_timeval
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# undef __need_timeval
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# ifndef _STRUCT_TIMEVAL
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# define _STRUCT_TIMEVAL 1
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# include <bits/types.h>
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/* A time value that is accurate to the nearest
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microsecond but also has a range of years. */
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struct timeval
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{
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__time_t tv_sec; /* Seconds. */
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__suseconds_t tv_usec; /* Microseconds. */
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};
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# endif /* struct timeval */
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#endif /* need timeval */
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