projects / mirror_spl.git / blame
| Commit | Line | Data |
|---|---|---|
| 23453686 | 1 | /* |
| 716154c5 BB |
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/>. |
| 716154c5 BB |
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. | |
| 715f6251 | 15 | * |
| 716154c5 | 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 | 22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
| 23453686 | 23 | */ |
| 715f6251 | 24 | |
| 09b414e8 | 25 | #ifndef _SPL_CONDVAR_H |
| 23453686 | 26 | #define _SPL_CONDVAR_H |
| f1ca4da6 | 27 | |
| f1b59d26 | 28 | #include <linux/module.h> |
| f1ca4da6 | 29 | #include <linux/wait.h> |
| 184c6873 | 30 | #include <linux/delay_compat.h> |
| 4d54fdee | 31 | #include <sys/kmem.h> |
| 4efd4118 | 32 | #include <sys/mutex.h> |
| 184c6873 | 33 | #include <sys/callo.h> |
| f1ca4da6 | 34 | |
| 716154c5 BB |
35 | /* |
| 36 | * The kcondvar_t struct is protected by mutex taken externally before | |
| f1ca4da6 | 37 | * calling any of the wait/signal funs, and passed into the wait funs. |
| 38 | */ | |
| 23453686 BB |
39 | #define CV_MAGIC 0x346545f4 |
| 40 | #define CV_DESTROY 0x346545f5 | |
| f1ca4da6 | 41 | |
| 42 | typedef struct { | |
| 43 | int cv_magic; | |
| f1ca4da6 | 44 | wait_queue_head_t cv_event; |
| d599e4fa | 45 | wait_queue_head_t cv_destroy; |
| d2733258 | 46 | atomic_t cv_refs; |
| f1ca4da6 | 47 | atomic_t cv_waiters; |
| 4efd4118 | 48 | kmutex_t *cv_mutex; |
| f1ca4da6 | 49 | } kcondvar_t; |
| 50 | ||
| 23453686 | 51 | typedef enum { CV_DEFAULT = 0, CV_DRIVER } kcv_type_t; |
| f1ca4da6 | 52 | |
| 23453686 BB |
53 | extern void __cv_init(kcondvar_t *, char *, kcv_type_t, void *); |
| 54 | extern void __cv_destroy(kcondvar_t *); | |
| 55 | extern void __cv_wait(kcondvar_t *, kmutex_t *); | |
| 56 | extern void __cv_wait_io(kcondvar_t *, kmutex_t *); | |
| 57 | extern void __cv_wait_sig(kcondvar_t *, kmutex_t *); | |
| 58 | extern clock_t __cv_timedwait(kcondvar_t *, kmutex_t *, clock_t); | |
| 59 | extern clock_t __cv_timedwait_sig(kcondvar_t *, kmutex_t *, clock_t); | |
| 60 | extern clock_t cv_timedwait_hires(kcondvar_t *, kmutex_t *, hrtime_t, | |
| 61 | hrtime_t res, int flag); | |
| 39cd90ef CC |
62 | extern clock_t cv_timedwait_sig_hires(kcondvar_t *, kmutex_t *, hrtime_t, |
| 63 | hrtime_t res, int flag); | |
| 23453686 BB |
64 | extern void __cv_signal(kcondvar_t *); |
| 65 | extern void __cv_broadcast(kcondvar_t *c); | |
| 4efd4118 | 66 | |
| 23453686 BB |
67 | #define cv_init(cvp, name, type, arg) __cv_init(cvp, name, type, arg) |
| 68 | #define cv_destroy(cvp) __cv_destroy(cvp) | |
| 69 | #define cv_wait(cvp, mp) __cv_wait(cvp, mp) | |
| 70 | #define cv_wait_io(cvp, mp) __cv_wait_io(cvp, mp) | |
| 71 | #define cv_wait_sig(cvp, mp) __cv_wait_sig(cvp, mp) | |
| 72 | #define cv_wait_interruptible(cvp, mp) cv_wait_sig(cvp, mp) | |
| 73 | #define cv_timedwait(cvp, mp, t) __cv_timedwait(cvp, mp, t) | |
| 74 | #define cv_timedwait_sig(cvp, mp, t) __cv_timedwait_sig(cvp, mp, t) | |
| 75 | #define cv_timedwait_interruptible(cvp, mp, t) cv_timedwait_sig(cvp, mp, t) | |
| 76 | #define cv_signal(cvp) __cv_signal(cvp) | |
| 77 | #define cv_broadcast(cvp) __cv_broadcast(cvp) | |
| f1ca4da6 | 78 | |
| 09b414e8 | 79 | #endif /* _SPL_CONDVAR_H */ |