Linux kernel mirror (for testing)
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linux
1#ifndef _ASM_GENERIC_CPUTIME_H
2#define _ASM_GENERIC_CPUTIME_H
3
4#include <linux/time.h>
5#include <linux/jiffies.h>
6
7typedef unsigned long cputime_t;
8
9#define cputime_zero (0UL)
10#define cputime_max ((~0UL >> 1) - 1)
11#define cputime_add(__a, __b) ((__a) + (__b))
12#define cputime_sub(__a, __b) ((__a) - (__b))
13#define cputime_div(__a, __n) ((__a) / (__n))
14#define cputime_halve(__a) ((__a) >> 1)
15#define cputime_eq(__a, __b) ((__a) == (__b))
16#define cputime_gt(__a, __b) ((__a) > (__b))
17#define cputime_ge(__a, __b) ((__a) >= (__b))
18#define cputime_lt(__a, __b) ((__a) < (__b))
19#define cputime_le(__a, __b) ((__a) <= (__b))
20#define cputime_to_jiffies(__ct) (__ct)
21#define jiffies_to_cputime(__hz) (__hz)
22
23typedef u64 cputime64_t;
24
25#define cputime64_zero (0ULL)
26#define cputime64_add(__a, __b) ((__a) + (__b))
27#define cputime64_sub(__a, __b) ((__a) - (__b))
28#define cputime64_to_jiffies64(__ct) (__ct)
29#define jiffies64_to_cputime64(__jif) (__jif)
30#define cputime_to_cputime64(__ct) ((u64) __ct)
31
32
33/*
34 * Convert cputime to milliseconds and back.
35 */
36#define cputime_to_msecs(__ct) jiffies_to_msecs(__ct)
37#define msecs_to_cputime(__msecs) msecs_to_jiffies(__msecs)
38
39/*
40 * Convert cputime to seconds and back.
41 */
42#define cputime_to_secs(jif) ((jif) / HZ)
43#define secs_to_cputime(sec) ((sec) * HZ)
44
45/*
46 * Convert cputime to timespec and back.
47 */
48#define timespec_to_cputime(__val) timespec_to_jiffies(__val)
49#define cputime_to_timespec(__ct,__val) jiffies_to_timespec(__ct,__val)
50
51/*
52 * Convert cputime to timeval and back.
53 */
54#define timeval_to_cputime(__val) timeval_to_jiffies(__val)
55#define cputime_to_timeval(__ct,__val) jiffies_to_timeval(__ct,__val)
56
57/*
58 * Convert cputime to clock and back.
59 */
60#define cputime_to_clock_t(__ct) jiffies_to_clock_t(__ct)
61#define clock_t_to_cputime(__x) clock_t_to_jiffies(__x)
62
63/*
64 * Convert cputime64 to clock.
65 */
66#define cputime64_to_clock_t(__ct) jiffies_64_to_clock_t(__ct)
67
68#endif