projects / mirror_spl.git / blame
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1 | /*****************************************************************************\ |
| 2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
| 3 | * Copyright (C) 2007 The Regents of the University of California. | |
| 4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
| 5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
| 715f6251 | 6 | * UCRL-CODE-235197 |
| 7 | * | |
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8 | * This file is part of the SPL, Solaris Porting Layer. |
| 9 | * For details, see <http://github.com/behlendorf/spl/>. | |
| 715f6251 | 10 | * |
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11 | * The SPL is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License as published by the | |
| 13 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 14 | * option) any later version. | |
| 15 | * | |
| 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT | |
| 715f6251 | 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 19 | * for more details. | |
| 20 | * | |
| 21 | * You should have received a copy of the GNU General Public License along | |
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22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
| 23 | \*****************************************************************************/ | |
| 715f6251 | 24 | |
| 09b414e8 | 25 | #ifndef _SPL_TIME_H |
| 26 | #define _SPL_TIME_H | |
| f1ca4da6 | 27 | |
| 28 | /* | |
| 29 | * Structure returned by gettimeofday(2) system call, | |
| 30 | * and used in other calls. | |
| 31 | */ | |
| f1b59d26 | 32 | #include <linux/module.h> |
| f1ca4da6 | 33 | #include <linux/time.h> |
| f4b37741 | 34 | #include <sys/types.h> |
| 2b88beb7 | 35 | #include <sys/timer.h> |
| f1ca4da6 | 36 | |
| ee476682 | 37 | #define TIME32_MAX INT32_MAX |
| 38 | #define TIME32_MIN INT32_MIN | |
| 39 | ||
| 40 | #define SEC 1 | |
| 41 | #define MILLISEC 1000 | |
| 42 | #define MICROSEC 1000000 | |
| 43 | #define NANOSEC 1000000000 | |
| f1ca4da6 | 44 | |
| 79b31f36 | 45 | /* Already defined in include/linux/time.h */ |
| 46 | #undef CLOCK_THREAD_CPUTIME_ID | |
| 47 | #undef CLOCK_REALTIME | |
| 48 | #undef CLOCK_MONOTONIC | |
| 49 | #undef CLOCK_PROCESS_CPUTIME_ID | |
| 50 | ||
| 51 | typedef enum clock_type { | |
| 52 | __CLOCK_REALTIME0 = 0, /* obsolete; same as CLOCK_REALTIME */ | |
| 53 | CLOCK_VIRTUAL = 1, /* thread's user-level CPU clock */ | |
| 54 | CLOCK_THREAD_CPUTIME_ID = 2, /* thread's user+system CPU clock */ | |
| 55 | CLOCK_REALTIME = 3, /* wall clock */ | |
| 56 | CLOCK_MONOTONIC = 4, /* high resolution monotonic clock */ | |
| 57 | CLOCK_PROCESS_CPUTIME_ID = 5, /* process's user+system CPU clock */ | |
| 58 | CLOCK_HIGHRES = CLOCK_MONOTONIC, /* alternate name */ | |
| 59 | CLOCK_PROF = CLOCK_THREAD_CPUTIME_ID,/* alternate name */ | |
| 60 | } clock_type_t; | |
| 61 | ||
| f1ca4da6 | 62 | #define hz \ |
| 63 | ({ \ | |
| 937879f1 | 64 | ASSERT(HZ >= 100 && HZ <= MICROSEC); \ |
| f1ca4da6 | 65 | HZ; \ |
| 66 | }) | |
| 67 | ||
| 79b31f36 | 68 | extern void __gethrestime(timestruc_t *); |
| 69 | extern int __clock_gettime(clock_type_t, timespec_t *); | |
| 70 | extern hrtime_t __gethrtime(void); | |
| 71 | ||
| 72 | #define gethrestime(ts) __gethrestime(ts) | |
| 73 | #define clock_gettime(fl, tp) __clock_gettime(fl, tp) | |
| 74 | #define gethrtime() __gethrtime() | |
| 75 | ||
| ee476682 | 76 | static __inline__ time_t |
| 77 | gethrestime_sec(void) | |
| 78 | { | |
| 79 | timestruc_t now; | |
| 80 | ||
| 81 | __gethrestime(&now); | |
| 82 | return now.tv_sec; | |
| 83 | } | |
| f1ca4da6 | 84 | |
| 09b414e8 | 85 | #endif /* _SPL_TIME_H */ |