1 | /* $NetBSD: rf_callback.c,v 1.22 2009/03/15 17:17:23 cegger Exp $ */ |
2 | /* |
3 | * Copyright (c) 1995 Carnegie-Mellon University. |
4 | * All rights reserved. |
5 | * |
6 | * Author: 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 | * |
31 | * callback.c -- code to manipulate callback descriptor |
32 | * |
33 | ****************************************************************************/ |
34 | |
35 | |
36 | #include <sys/cdefs.h> |
37 | __KERNEL_RCSID(0, "$NetBSD: rf_callback.c,v 1.22 2009/03/15 17:17:23 cegger Exp $" ); |
38 | |
39 | #include <dev/raidframe/raidframevar.h> |
40 | #include <sys/pool.h> |
41 | |
42 | #include "rf_archs.h" |
43 | #include "rf_threadstuff.h" |
44 | #include "rf_callback.h" |
45 | #include "rf_debugMem.h" |
46 | #include "rf_general.h" |
47 | #include "rf_shutdown.h" |
48 | #include "rf_netbsd.h" |
49 | |
50 | #define RF_MAX_FREE_CALLBACK 64 |
51 | #define RF_MIN_FREE_CALLBACK 32 |
52 | |
53 | static void rf_ShutdownCallback(void *); |
54 | static void |
55 | rf_ShutdownCallback(void *ignored) |
56 | { |
57 | pool_destroy(&rf_pools.callback); |
58 | } |
59 | |
60 | int |
61 | rf_ConfigureCallback(RF_ShutdownList_t **listp) |
62 | { |
63 | |
64 | rf_pool_init(&rf_pools.callback, sizeof(RF_CallbackDesc_t), |
65 | "rf_callbackpl" , RF_MIN_FREE_CALLBACK, RF_MAX_FREE_CALLBACK); |
66 | rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL); |
67 | |
68 | return (0); |
69 | } |
70 | |
71 | RF_CallbackDesc_t * |
72 | rf_AllocCallbackDesc(void) |
73 | { |
74 | RF_CallbackDesc_t *p; |
75 | |
76 | p = pool_get(&rf_pools.callback, PR_WAITOK); |
77 | return (p); |
78 | } |
79 | |
80 | void |
81 | rf_FreeCallbackDesc(RF_CallbackDesc_t *p) |
82 | { |
83 | pool_put(&rf_pools.callback, p); |
84 | } |
85 | |