usr/src/cmd/fm/fmd/common/fmd_time.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _FMD_TIME_H
  28 #define _FMD_TIME_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #include <sys/types.h>
  33
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 typedef struct fmd_timeval {
  39         uint64_t ftv_sec;       /* seconds since gettimeofday(3C) Epoch */
  40         uint64_t ftv_nsec;      /* nanoseconds past value of ftv_sec */
  41 } fmd_timeval_t;
  42
  43 typedef struct fmd_timeops {
  44         void *(*fto_init)(void);
  45         void (*fto_fini)(void *);
  46         int (*fto_gettimeofday)(struct timeval *, void *);
  47         hrtime_t (*fto_gethrtime)(void);
  48         void (*fto_addhrtime)(hrtime_t);
  49         void (*fto_waithrtime)(hrtime_t);
  50         void (*fto_waitcancel)(pthread_t);
  51 } fmd_timeops_t;
  52
  53 typedef struct fmd_timesim {
  54         pthread_mutex_t fts_lock; /* lock protecting contents of fmd_timesim */
  55         pthread_cond_t fts_cv;  /* condition variable for timerq wait */
  56         hrtime_t fts_tod;       /* time-of-day nsec corresponding to hrt=0 */
  57         hrtime_t fts_hrt;       /* hrtime clock in simulated universe */
  58         uint_t fts_cancel;      /* count of pending fto_waitcancel()s */
  59 } fmd_timesim_t;
  60
  61 extern const fmd_timeops_t fmd_timeops_native;
  62 extern const fmd_timeops_t fmd_timeops_simulated;
  63
  64 extern void fmd_time_gettimeofday(struct timeval *);
  65 extern hrtime_t fmd_time_gethrtime(void);
  66 extern void fmd_time_addhrtime(hrtime_t);
  67 extern void fmd_time_waithrtime(hrtime_t);
  68 extern void fmd_time_waitcancel(pthread_t);
  69 extern void fmd_time_sync(fmd_timeval_t *, hrtime_t *, uint_t);
  70
  71 extern void fmd_time_hrt2tod(hrtime_t, const fmd_timeval_t *,
  72     hrtime_t, fmd_timeval_t *);
  73
  74 extern void fmd_time_tod2hrt(hrtime_t, const fmd_timeval_t *,
  75     const fmd_timeval_t *, hrtime_t *);
  76
  77 extern hrtime_t fmd_time_ena2hrt(hrtime_t, uint64_t);
  78
  79 #ifdef  __cplusplus
  80 }
  81 #endif
  82
  83 #endif  /* _FMD_TIME_H */