| [2] | 1 | /* System-dependent timing definitions. Generic version. |
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| 2 | Copyright (C) 1996,1997,1999-2002,2003 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, write to the Free |
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| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 18 | 02111-1307 USA. */ |
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| 19 | |
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| 20 | /* |
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| 21 | * Never include this file directly; use <time.h> instead. |
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| 22 | */ |
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| 23 | |
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| 24 | #ifndef __need_timeval |
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| 25 | # ifndef _BITS_TIME_H |
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| 26 | # define _BITS_TIME_H 1 |
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| 27 | |
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| 28 | /* ISO/IEC 9899:1990 7.12.1: <time.h> |
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| 29 | The macro `CLOCKS_PER_SEC' is the number per second of the value |
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| 30 | returned by the `clock' function. */ |
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| 31 | /* CAE XSH, Issue 4, Version 2: <time.h> |
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| 32 | The value of CLOCKS_PER_SEC is required to be 1 million on all |
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| 33 | XSI-conformant systems. */ |
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| 34 | # define CLOCKS_PER_SEC 1000000l |
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| 35 | |
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| 36 | /* Get the arch-specific value of __UCLIBC_CLK_TCK_CONST used for CLK_TCK |
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| 37 | * in sysconf() and clock(). */ |
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| 38 | #include <bits/uClibc_clk_tck.h> |
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| 39 | |
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| 40 | # if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K |
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| 41 | /* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK |
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| 42 | presents the real value for clock ticks per second for the system. */ |
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| 43 | # include <bits/types.h> |
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| 44 | /* Note (uClibc): glibc #defines CLK_TCK as a sysconf() call. */ |
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| 45 | # define CLK_TCK ((__clock_t) __UCLIBC_CLK_TCK_CONST) |
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| 46 | # endif |
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| 47 | |
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| 48 | # ifdef __USE_POSIX199309 |
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| 49 | /* Identifier for system-wide realtime clock. */ |
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| 50 | # define CLOCK_REALTIME 0 |
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| 51 | /* Monotonic system-wide clock. */ |
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| 52 | # define CLOCK_MONOTONIC 1 |
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| 53 | /* High-resolution timer from the CPU. */ |
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| 54 | # define CLOCK_PROCESS_CPUTIME_ID 2 |
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| 55 | /* Thread-specific CPU-time clock. */ |
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| 56 | # define CLOCK_THREAD_CPUTIME_ID 3 |
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| 57 | |
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| 58 | /* Flag to indicate time is absolute. */ |
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| 59 | # define TIMER_ABSTIME 1 |
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| 60 | # endif |
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| 61 | |
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| 62 | # endif /* bits/time.h */ |
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| 63 | #endif |
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| 64 | |
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| 65 | #ifdef __need_timeval |
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| 66 | # undef __need_timeval |
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| 67 | # ifndef _STRUCT_TIMEVAL |
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| 68 | # define _STRUCT_TIMEVAL 1 |
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| 69 | # include <bits/types.h> |
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| 70 | |
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| 71 | /* A time value that is accurate to the nearest |
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| 72 | microsecond but also has a range of years. */ |
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| 73 | struct timeval |
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| 74 | { |
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| 75 | __time_t tv_sec; /* Seconds. */ |
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| 76 | __suseconds_t tv_usec; /* Microseconds. */ |
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| 77 | }; |
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| 78 | # endif /* struct timeval */ |
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| 79 | #endif /* need timeval */ |
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