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Diffstat (limited to 'REORG.TODO/bits/time.h')
| -rw-r--r-- | REORG.TODO/bits/time.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/REORG.TODO/bits/time.h b/REORG.TODO/bits/time.h new file mode 100644 index 0000000000..91ad34f049 --- /dev/null +++ b/REORG.TODO/bits/time.h @@ -0,0 +1,64 @@ +/* System-dependent timing definitions. Generic version. + Copyright (C) 1996-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +/* + * Never include this file directly; use <time.h> instead. + */ + +#ifndef _BITS_TIME_H +#define _BITS_TIME_H 1 + +#include <bits/types.h> + +/* ISO/IEC 9899:1999 7.23.1: Components of time + The macro `CLOCKS_PER_SEC' is an expression with type `clock_t' that is + the number per second of the value returned by the `clock' function. */ +/* CAE XSH, Issue 4, Version 2: <time.h> + The value of CLOCKS_PER_SEC is required to be 1 million on all + XSI-conformant systems. */ +#define CLOCKS_PER_SEC ((__clock_t) 1000000) + +#if (!defined __STRICT_ANSI__ || defined __USE_POSIX) \ + && !defined __USE_XOPEN2K +/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK + presents the real value for clock ticks per second for the system. */ +extern long int __sysconf (int); +# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */ +#endif + +#ifdef __USE_POSIX199309 +/* Identifier for system-wide realtime clock. */ +# define CLOCK_REALTIME 0 +/* Monotonic system-wide clock. */ +# define CLOCK_MONOTONIC 1 +/* High-resolution timer from the CPU. */ +# define CLOCK_PROCESS_CPUTIME_ID 2 +/* Thread-specific CPU-time clock. */ +# define CLOCK_THREAD_CPUTIME_ID 3 +/* Monotonic system-wide clock, not adjusted for frequency scaling. */ +# define CLOCK_MONOTONIC_RAW 4 +/* Identifier for system-wide realtime clock, updated only on ticks. */ +# define CLOCK_REALTIME_COARSE 5 +/* Monotonic system-wide clock, updated only on ticks. */ +# define CLOCK_MONOTONIC_COARSE 6 + +/* Flag to indicate time is absolute. */ +# define TIMER_ABSTIME 1 +#endif + +#endif /* bits/time.h */ |