projects / mirror_spl.git / blame
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|---|---|---|
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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 | * | |
| 716154c5 | 8 | * This file is part of the SPL, Solaris Porting Layer. |
| 3d6af2dd | 9 | * For details, see <http://zfsonlinux.org/>. |
| 715f6251 | 10 | * |
| 716154c5 BB |
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 | |
| 716154c5 BB |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
| 23 | \*****************************************************************************/ | |
| 715f6251 | 24 | |
| 09b414e8 | 25 | #ifndef _SPL_TIME_H |
| 82f2f1a3 | 26 | #define _SPL_TIME_H |
| f1ca4da6 | 27 | |
| f1b59d26 | 28 | #include <linux/module.h> |
| f1ca4da6 | 29 | #include <linux/time.h> |
| f4b37741 | 30 | #include <sys/types.h> |
| 2b88beb7 | 31 | #include <sys/timer.h> |
| f1ca4da6 | 32 | |
| 791dc876 | 33 | #if defined(CONFIG_64BIT) |
| 82f2f1a3 BB |
34 | #define TIME_MAX INT64_MAX |
| 35 | #define TIME_MIN INT64_MIN | |
| 791dc876 | 36 | #else |
| 82f2f1a3 BB |
37 | #define TIME_MAX INT32_MAX |
| 38 | #define TIME_MIN INT32_MIN | |
| 791dc876 | 39 | #endif |
| ee476682 | 40 | |
| 82f2f1a3 BB |
41 | #define SEC 1 |
| 42 | #define MILLISEC 1000 | |
| 43 | #define MICROSEC 1000000 | |
| 44 | #define NANOSEC 1000000000 | |
| f1ca4da6 | 45 | |
| 184c6873 NB |
46 | #define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC)) |
| 47 | #define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC)) | |
| 48 | ||
| dfbd813e PS |
49 | #define USEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MICROSEC)) |
| 50 | #define NSEC2USEC(n) ((n) / (NANOSEC / MICROSEC)) | |
| 51 | ||
| 52 | #define NSEC2SEC(n) ((n) / (NANOSEC / SEC)) | |
| 53 | #define SEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / SEC)) | |
| 5e39e4f0 | 54 | |
| 0da84d15 | 55 | static const int hz = HZ; |
| 79b31f36 | 56 | |
| 82f2f1a3 BB |
57 | #define TIMESPEC_OVERFLOW(ts) \ |
| 58 | ((ts)->tv_sec < TIME_MIN || (ts)->tv_sec > TIME_MAX) | |
| 79b31f36 | 59 | |
| 82f2f1a3 BB |
60 | static inline void |
| 61 | gethrestime(timestruc_t *now) | |
| 62 | { | |
| 47af4b76 | 63 | *now = current_kernel_time(); |
| 82f2f1a3 | 64 | } |
| 79b31f36 | 65 | |
| 82f2f1a3 | 66 | static inline time_t |
| ee476682 | 67 | gethrestime_sec(void) |
| 68 | { | |
| 82f2f1a3 | 69 | struct timespec ts; |
| 47af4b76 | 70 | ts = current_kernel_time(); |
| 82f2f1a3 | 71 | return (ts.tv_sec); |
| ee476682 | 72 | } |
| f1ca4da6 | 73 | |
| 82f2f1a3 BB |
74 | static inline hrtime_t |
| 75 | gethrtime(void) | |
| 76 | { | |
| 77 | struct timespec now; | |
| 78 | getrawmonotonic(&now); | |
| 79 | return (((hrtime_t)now.tv_sec * NSEC_PER_SEC) + now.tv_nsec); | |
| 80 | } | |
| a4a1e1ec | 81 | |
| 09b414e8 | 82 | #endif /* _SPL_TIME_H */ |