+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program 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 version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/winnt/winnt-time.h
- *
- * Implementation of portable time API for Winnt (kernel and user-level).
- */
-
-#ifndef __LIBCFS_WINNT_LINUX_TIME_H__
-#define __LIBCFS_WINNT_LINUX_TIME_H__
-
-#ifndef __LIBCFS_LIBCFS_H__
-#error Do not #include this file directly. #include <libcfs/libcfs.h> instead
-#endif
-
-/* Portable time API */
-
-/*
- * Platform provides three opaque data-types:
- *
- * cfs_time_t represents point in time. This is internal kernel
- * time rather than "wall clock". This time bears no
- * relation to gettimeofday().
- *
- * cfs_duration_t represents time interval with resolution of internal
- * platform clock
- *
- * cfs_fs_time_t represents instance in world-visible time. This is
- * used in file-system time-stamps
- *
- * cfs_time_t cfs_time_current(void);
- * cfs_time_t cfs_time_add (cfs_time_t, cfs_duration_t);
- * cfs_duration_t cfs_time_sub (cfs_time_t, cfs_time_t);
- * int cfs_time_before (cfs_time_t, cfs_time_t);
- * int cfs_time_beforeq(cfs_time_t, cfs_time_t);
- *
- * cfs_duration_t cfs_duration_build(int64_t);
- *
- * time_t cfs_duration_sec (cfs_duration_t);
- * void cfs_duration_usec(cfs_duration_t, struct timeval *);
- * void cfs_duration_nsec(cfs_duration_t, struct timespec *);
- *
- * void cfs_fs_time_current(cfs_fs_time_t *);
- * time_t cfs_fs_time_sec (cfs_fs_time_t *);
- * void cfs_fs_time_usec (cfs_fs_time_t *, struct timeval *);
- * void cfs_fs_time_nsec (cfs_fs_time_t *, struct timespec *);
- * int cfs_fs_time_before (cfs_fs_time_t *, cfs_fs_time_t *);
- * int cfs_fs_time_beforeq(cfs_fs_time_t *, cfs_fs_time_t *);
- *
- * CFS_TIME_FORMAT
- * CFS_DURATION_FORMAT
- *
- */
-
-struct timeval {
- time_t tv_sec; /* seconds */
- suseconds_t tv_usec; /* microseconds */
-};
-
-typedef time_t cfs_time_t;
-typedef time_t cfs_duration_t;
-
-#ifdef __KERNEL__
-
-#include <libcfs/winnt/portals_compat25.h>
-
-#define HZ (100)
-
-struct timespec {
- __u32 tv_sec;
- __u32 tv_nsec;
-};
-typedef struct timeval cfs_fs_time_t;
-
-
-#define ONE_BILLION ((u_int64_t)1000000000)
-#define ONE_MILLION ((u_int64_t) 1000000)
-
-/*
- * Generic kernel stuff
- */
-
-#define jiffies (ULONG_PTR)JIFFIES()
-#define cfs_jiffies (ULONG_PTR)JIFFIES()
-
-static inline void do_gettimeofday(struct timeval *tv)
-{
- LARGE_INTEGER Time;
-
- KeQuerySystemTime(&Time);
-
- tv->tv_sec = (time_t) (Time.QuadPart / 10000000);
- tv->tv_usec = (suseconds_t) (Time.QuadPart % 10000000) / 10;
-}
-
-static inline LONGLONG JIFFIES()
-{
- LARGE_INTEGER Tick;
- LARGE_INTEGER Elapse;
-
- KeQueryTickCount(&Tick);
-
- Elapse.QuadPart = Tick.QuadPart * KeQueryTimeIncrement();
- Elapse.QuadPart /= (10000000 / HZ);
-
- return Elapse.QuadPart;
-}
-
-static inline cfs_time_t cfs_time_current(void)
-{
- return (cfs_time_t)JIFFIES();
-}
-
-static inline time_t cfs_time_current_sec(void)
-{
- return (time_t)(JIFFIES() / HZ);
-}
-
-#define cfs_time_before(t1, t2) (((signed)(t1) - (signed)(t2)) < 0)
-#define cfs_time_beforeq(t1, t2) (((signed)(t1) - (signed)(t2)) <= 0)
-
-static inline void cfs_fs_time_current(cfs_fs_time_t *t)
-{
- ULONG Linux;
- LARGE_INTEGER Sys;
-
- KeQuerySystemTime(&Sys);
-
- RtlTimeToSecondsSince1970(&Sys, &Linux);
-
- t->tv_sec = Linux;
- t->tv_usec = (Sys.LowPart % 10000000) / 10;
-}
-
-static inline unsigned long get_seconds(void)
-{
- cfs_fs_time_t t;
- cfs_fs_time_current(&t);
- return (unsigned long) t.tv_sec;
-}
-
-static inline cfs_time_t cfs_fs_time_sec(cfs_fs_time_t *t)
-{
- return (cfs_time_t)t->tv_sec;
-}
-
-static inline unsigned long __cfs_fs_time_flat(cfs_fs_time_t *t)
-{
- return (unsigned long)(t->tv_sec) * ONE_MILLION + t->tv_usec;
-}
-
-static inline int cfs_fs_time_before(cfs_fs_time_t *t1, cfs_fs_time_t *t2)
-{
- return (__cfs_fs_time_flat(t1) < __cfs_fs_time_flat(t2));
-}
-
-static inline int cfs_fs_time_beforeq(cfs_fs_time_t *t1, cfs_fs_time_t *t2)
-{
- return (__cfs_fs_time_flat(t1) <= __cfs_fs_time_flat(t2));
-}
-
-static inline cfs_duration_t cfs_time_seconds(cfs_duration_t seconds)
-{
- return (cfs_duration_t)(seconds * HZ);
-}
-
-static inline time_t cfs_duration_sec(cfs_duration_t d)
-{
- return (time_t)(d / HZ);
-}
-
-static inline void cfs_duration_usec(cfs_duration_t d, struct timeval *s)
-{
- s->tv_sec = (__u32)(d / HZ);
- s->tv_usec = (__u32)((d - (cfs_duration_t)s->tv_sec * HZ) *
- ONE_MILLION / HZ);
-}
-
-static inline void cfs_duration_nsec(cfs_duration_t d, struct timespec *s)
-{
- s->tv_sec = (__u32) (d / HZ);
- s->tv_nsec = (__u32)((d - (cfs_duration_t)s->tv_sec * HZ) *
- ONE_BILLION / HZ);
-}
-
-static inline void cfs_fs_time_usec(cfs_fs_time_t *t, struct timeval *v)
-{
- *v = *t;
-}
-
-static inline void cfs_fs_time_nsec(cfs_fs_time_t *t, struct timespec *s)
-{
- s->tv_sec = (__u32) t->tv_sec;
- s->tv_nsec = (__u32) t->tv_usec * 1000;
-}
-
-
-#define cfs_time_current_64 JIFFIES
-
-static inline __u64 cfs_time_add_64(__u64 t, __u64 d)
-{
- return t + d;
-}
-
-static inline __u64 cfs_time_shift_64(cfs_duration_t seconds)
-{
- return cfs_time_add_64(cfs_time_current_64(),
- cfs_time_seconds(seconds));
-}
-
-static inline int cfs_time_before_64(__u64 t1, __u64 t2)
-{
- return (__s64)t2 - (__s64)t1 > 0;
-}
-
-static inline int cfs_time_beforeq_64(__u64 t1, __u64 t2)
-{
- return (__s64)t2 - (__s64)t1 >= 0;
-}
-
-/*
- * One jiffy
- */
-#define CFS_TICK (1)
-#define LTIME_S(t) *((__u64 *)&(t))
-
-#define CFS_TIME_T "%u"
-#define CFS_DURATION_T "%d"
-
-#else /* !__KERNEL__ */
-
-#include <time.h>
-#ifdef HAVE_LIBPTHREAD
-#include <pthread.h>
-#else
-struct timespec {
- unsigned long tv_sec;
- unsigned long tv_nsec;
-};
-#endif /* HAVE_LIBPTHREAD */
-
-#include "../user-time.h"
-
-/* liblustre. time(2) based implementation. */
-int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
-void sleep(int time);
-void do_gettimeofday(struct timeval *tv);
-int gettimeofday(struct timeval *tv, void * tz);
-
-#endif /* !__KERNEL__ */
-
-/* __LIBCFS_LINUX_LINUX_TIME_H__ */
-#endif
-/*
- * Local variables:
- * c-indentation-style: "K&R"
- * c-basic-offset: 8
- * tab-width: 8
- * fill-column: 80
- * scroll-step: 1
- * End:
- */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff