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 | |