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Diffstat (limited to 'include/spl/sys/time.h')
| -rw-r--r-- | include/spl/sys/time.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/include/spl/sys/time.h b/include/spl/sys/time.h new file mode 100644 index 000000000..d6aaca913 --- /dev/null +++ b/include/spl/sys/time.h @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. + * Copyright (C) 2007 The Regents of the University of California. + * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). + * Written by Brian Behlendorf <[email protected]>. + * UCRL-CODE-235197 + * + * This file is part of the SPL, Solaris Porting Layer. + * For details, see <http://zfsonlinux.org/>. + * + * The SPL is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * The SPL 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 General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with the SPL. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _SPL_TIME_H +#define _SPL_TIME_H + +#include <linux/module.h> +#include <linux/time.h> +#include <sys/types.h> +#include <sys/timer.h> + +#if defined(CONFIG_64BIT) +#define TIME_MAX INT64_MAX +#define TIME_MIN INT64_MIN +#else +#define TIME_MAX INT32_MAX +#define TIME_MIN INT32_MIN +#endif + +#define SEC 1 +#define MILLISEC 1000 +#define MICROSEC 1000000 +#define NANOSEC 1000000000 + +#define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC)) +#define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC)) + +#define USEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MICROSEC)) +#define NSEC2USEC(n) ((n) / (NANOSEC / MICROSEC)) + +#define NSEC2SEC(n) ((n) / (NANOSEC / SEC)) +#define SEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / SEC)) + +static const int hz = HZ; + +#define TIMESPEC_OVERFLOW(ts) \ + ((ts)->tv_sec < TIME_MIN || (ts)->tv_sec > TIME_MAX) + +static inline void +gethrestime(timestruc_t *now) +{ + *now = current_kernel_time(); +} + +static inline time_t +gethrestime_sec(void) +{ + struct timespec ts; + ts = current_kernel_time(); + return (ts.tv_sec); +} + +static inline hrtime_t +gethrtime(void) +{ + struct timespec now; + getrawmonotonic(&now); + return (((hrtime_t)now.tv_sec * NSEC_PER_SEC) + now.tv_nsec); +} + +#endif /* _SPL_TIME_H */ |