projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 87d546d8 TG |
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>. | |
| 6 | * UCRL-CODE-235197 | |
| 7 | * | |
| 8 | * This file is part of the SPL, Solaris Porting Layer. | |
| 9 | * For details, see <http://zfsonlinux.org/>. | |
| 10 | * | |
| 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 | |
| 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 | |
| 22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. | |
| 23 | \*****************************************************************************/ | |
| 24 | ||
| 25 | #ifndef _SPL_TIME_H | |
| 26 | #define _SPL_TIME_H | |
| 27 | ||
| 28 | #include <linux/module.h> | |
| 29 | #include <linux/time.h> | |
| 30 | #include <sys/types.h> | |
| 31 | #include <sys/timer.h> | |
| 32 | ||
| 33 | #if defined(CONFIG_64BIT) | |
| 34 | #define TIME_MAX INT64_MAX | |
| 35 | #define TIME_MIN INT64_MIN | |
| 36 | #else | |
| 37 | #define TIME_MAX INT32_MAX | |
| 38 | #define TIME_MIN INT32_MIN | |
| 39 | #endif | |
| 40 | ||
| 41 | #define SEC 1 | |
| 42 | #define MILLISEC 1000 | |
| 43 | #define MICROSEC 1000000 | |
| 44 | #define NANOSEC 1000000000 | |
| 45 | ||
| 46 | #define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC)) | |
| 47 | #define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC)) | |
| 48 | ||
| 49 | static const int hz = HZ; | |
| 50 | ||
| 51 | #define TIMESPEC_OVERFLOW(ts) \ | |
| 52 | ((ts)->tv_sec < TIME_MIN || (ts)->tv_sec > TIME_MAX) | |
| 53 | ||
| 54 | static inline void | |
| 55 | gethrestime(timestruc_t *now) | |
| 56 | { | |
| 57 | *now = current_kernel_time(); | |
| 58 | } | |
| 59 | ||
| 60 | static inline time_t | |
| 61 | gethrestime_sec(void) | |
| 62 | { | |
| 63 | struct timespec ts; | |
| 64 | ts = current_kernel_time(); | |
| 65 | return (ts.tv_sec); | |
| 66 | } | |
| 67 | ||
| 68 | static inline hrtime_t | |
| 69 | gethrtime(void) | |
| 70 | { | |
| 71 | struct timespec now; | |
| 72 | getrawmonotonic(&now); | |
| 73 | return (((hrtime_t)now.tv_sec * NSEC_PER_SEC) + now.tv_nsec); | |
| 74 | } | |
| 75 | ||
| 76 | #endif /* _SPL_TIME_H */ |