projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 3fc6935a | 1 | /* System-dependent timing definitions. Generic version. |
| 1e543c0c | 2 | Copyright (C) 1996,1997,1999-2002,2003 Free Software Foundation, Inc. |
| f0e44959 UD |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| f0e44959 UD |
9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| f0e44959 | 14 | |
| 41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free | |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 18 | 02111-1307 USA. */ | |
| f0e44959 | 19 | |
| 5107cf1d UD |
20 | /* |
| 21 | * Never include this file directly; use <time.h> instead. | |
| 22 | */ | |
| 23 | ||
| f4017d20 UD |
24 | #ifndef __need_timeval |
| 25 | # ifndef _BITS_TIME_H | |
| 26 | # define _BITS_TIME_H 1 | |
| 27 | ||
| 3fc6935a RM |
28 | /* ISO/IEC 9899:1990 7.12.1: <time.h> |
| 29 | The macro `CLOCKS_PER_SEC' is the number per second of the value | |
| 30 | returned by the `clock' function. */ | |
| 31 | /* CAE XSH, Issue 4, Version 2: <time.h> | |
| 32 | The value of CLOCKS_PER_SEC is required to be 1 million on all | |
| 33 | XSI-conformant systems. */ | |
| 34 | # define CLOCKS_PER_SEC 1000000l | |
| 35 | ||
| 36 | # if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K | |
| 37 | /* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK | |
| 38 | presents the real value for clock ticks per second for the system. */ | |
| 39 | # include <bits/types.h> | |
| 40 | extern long int __sysconf (int); | |
| 41 | # define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */ | |
| 42 | # endif | |
| f4017d20 | 43 | |
| be1dd949 UD |
44 | # ifdef __USE_POSIX199309 |
| 45 | /* Identifier for system-wide realtime clock. */ | |
| 3fc6935a | 46 | # define CLOCK_REALTIME 0 |
| 1e543c0c UD |
47 | /* Monotonic system-wide clock. */ |
| 48 | # define CLOCK_MONOTONIC 1 | |
| 3fc6935a RM |
49 | /* High-resolution timer from the CPU. */ |
| 50 | # define CLOCK_PROCESS_CPUTIME_ID 2 | |
| 51 | /* Thread-specific CPU-time clock. */ | |
| 52 | # define CLOCK_THREAD_CPUTIME_ID 3 | |
| be1dd949 UD |
53 | |
| 54 | /* Flag to indicate time is absolute. */ | |
| 3fc6935a | 55 | # define TIMER_ABSTIME 1 |
| be1dd949 UD |
56 | # endif |
| 57 | ||
| f4017d20 UD |
58 | # endif /* bits/time.h */ |
| 59 | #endif | |
| 60 | ||
| f0e44959 UD |
61 | #ifdef __need_timeval |
| 62 | # undef __need_timeval | |
| 63 | # ifndef _STRUCT_TIMEVAL | |
| 64 | # define _STRUCT_TIMEVAL 1 | |
| 3fc6935a RM |
65 | # include <bits/types.h> |
| 66 | ||
| f0e44959 UD |
67 | /* A time value that is accurate to the nearest |
| 68 | microsecond but also has a range of years. */ | |
| 69 | struct timeval | |
| 70 | { | |
| d71b808a | 71 | __time_t tv_sec; /* Seconds. */ |
| 57fb9b38 | 72 | __suseconds_t tv_usec; /* Microseconds. */ |
| f0e44959 UD |
73 | }; |
| 74 | # endif /* struct timeval */ | |
| 75 | #endif /* need timeval */ |