| 1 | /* $NetBSD: rf_threadstuff.h,v 1.34 2014/02/28 10:16:51 skrll Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 1995 Carnegie-Mellon University. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Author: Mark Holland, Daniel Stodolsky, Jim Zelenka |
| 7 | * |
| 8 | * Permission to use, copy, modify and distribute this software and |
| 9 | * its documentation is hereby granted, provided that both the copyright |
| 10 | * notice and this permission notice appear in all copies of the |
| 11 | * software, derivative works or modified versions, and any portions |
| 12 | * thereof, and that both notices appear in supporting documentation. |
| 13 | * |
| 14 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
| 15 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND |
| 16 | * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| 17 | * |
| 18 | * Carnegie Mellon requests users of this software to return to |
| 19 | * |
| 20 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| 21 | * School of Computer Science |
| 22 | * Carnegie Mellon University |
| 23 | * Pittsburgh PA 15213-3890 |
| 24 | * |
| 25 | * any improvements or extensions that they make and grant Carnegie the |
| 26 | * rights to redistribute these changes. |
| 27 | */ |
| 28 | |
| 29 | /* |
| 30 | * threadstuff.h -- definitions for threads, locks, and synchronization |
| 31 | * |
| 32 | * The purpose of this file is provide some illusion of portability. |
| 33 | * If the functions below can be implemented with the same semantics on |
| 34 | * some new system, then at least the synchronization and thread control |
| 35 | * part of the code should not require modification to port to a new machine. |
| 36 | * the only other place where the pthread package is explicitly used is |
| 37 | * threadid.h |
| 38 | * |
| 39 | * this file should be included above stdio.h to get some necessary defines. |
| 40 | * |
| 41 | */ |
| 42 | |
| 43 | #ifndef _RF__RF_THREADSTUFF_H_ |
| 44 | #define _RF__RF_THREADSTUFF_H_ |
| 45 | |
| 46 | #include <sys/types.h> |
| 47 | #include <sys/param.h> |
| 48 | #include <sys/systm.h> |
| 49 | #include <sys/proc.h> |
| 50 | #include <sys/kthread.h> |
| 51 | #include <sys/mutex.h> |
| 52 | |
| 53 | #include <dev/raidframe/raidframevar.h> |
| 54 | |
| 55 | |
| 56 | typedef struct lwp *RF_Thread_t; |
| 57 | typedef void *RF_ThreadArg_t; |
| 58 | |
| 59 | #define rf_declare_mutex2(_m_) kmutex_t _m_ |
| 60 | #define rf_declare_cond2(_c_) kcondvar_t _c_ |
| 61 | |
| 62 | #define rf_lock_mutex2(_m_) mutex_enter(&(_m_)) |
| 63 | #define rf_unlock_mutex2(_m_) mutex_exit(&(_m_)) |
| 64 | |
| 65 | #define rf_init_mutex2(_m_, _p_) mutex_init(&(_m_), MUTEX_DEFAULT, (_p_)) |
| 66 | #define rf_destroy_mutex2(_m_) mutex_destroy(&(_m_)) |
| 67 | |
| 68 | #define rf_owned_mutex2(_m_) mutex_owned(&(_m_)) |
| 69 | |
| 70 | #define rf_init_cond2(_c_, _w_) cv_init(&(_c_), (_w_)) |
| 71 | #define rf_destroy_cond2(_c_) cv_destroy(&(_c_)) |
| 72 | |
| 73 | #define rf_wait_cond2(_c_,_m_) cv_wait(&(_c_), &(_m_)) |
| 74 | #define rf_timedwait_cond2(_c_,_m_,_t_) cv_timedwait(&(_c_), &(_m_), (_t_)) |
| 75 | #define rf_signal_cond2(_c_) cv_signal(&(_c_)) |
| 76 | #define rf_broadcast_cond2(_c_) cv_broadcast(&(_c_)) |
| 77 | |
| 78 | #define rf_sleep(_w_,_t_,_m_) kpause((_w_), false, (_t_), &(_m_)) |
| 79 | |
| 80 | /* |
| 81 | * In NetBSD, kernel threads are simply processes which share several |
| 82 | * substructures and never run in userspace. |
| 83 | */ |
| 84 | |
| 85 | #define RF_CREATE_THREAD(_handle_, _func_, _arg_, _name_) \ |
| 86 | kthread_create(PRI_SOFTBIO, 0, NULL, (void (*)(void *))(_func_), \ |
| 87 | (void *)(_arg_), &(_handle_), _name_) |
| 88 | |
| 89 | #define RF_CREATE_ENGINE_THREAD(_handle_, _func_, _arg_, _fmt_, _fmt_arg_) \ |
| 90 | kthread_create(PRI_SOFTBIO, 0, NULL, (void (*)(void *))(_func_), \ |
| 91 | (void *)(_arg_), &(_handle_), _fmt_, _fmt_arg_) |
| 92 | |
| 93 | #endif /* !_RF__RF_THREADSTUFF_H_ */ |
| 94 | |