1 | /* $NetBSD: rf_shutdown.h,v 1.7 2005/12/11 12:23:37 christos Exp $ */ |
2 | /* |
3 | * rf_shutdown.h |
4 | */ |
5 | /* |
6 | * Copyright (c) 1996 Carnegie-Mellon University. |
7 | * All rights reserved. |
8 | * |
9 | * Author: Jim Zelenka |
10 | * |
11 | * Permission to use, copy, modify and distribute this software and |
12 | * its documentation is hereby granted, provided that both the copyright |
13 | * notice and this permission notice appear in all copies of the |
14 | * software, derivative works or modified versions, and any portions |
15 | * thereof, and that both notices appear in supporting documentation. |
16 | * |
17 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
18 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND |
19 | * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
20 | * |
21 | * Carnegie Mellon requests users of this software to return to |
22 | * |
23 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
24 | * School of Computer Science |
25 | * Carnegie Mellon University |
26 | * Pittsburgh PA 15213-3890 |
27 | * |
28 | * any improvements or extensions that they make and grant Carnegie the |
29 | * rights to redistribute these changes. |
30 | */ |
31 | /* |
32 | * Maintain lists of cleanup functions. Also, mechanisms for coordinating |
33 | * thread startup and shutdown. |
34 | */ |
35 | |
36 | #ifndef _RF__RF_SHUTDOWN_H_ |
37 | #define _RF__RF_SHUTDOWN_H_ |
38 | |
39 | #include <dev/raidframe/raidframevar.h> |
40 | |
41 | #include "rf_threadstuff.h" |
42 | |
43 | /* |
44 | * Important note: the shutdown list is run like a stack, new |
45 | * entries pushed on top. Therefore, the most recently added |
46 | * entry (last started) is the first removed (stopped). This |
47 | * should handle system-dependencies pretty nicely- if a system |
48 | * is there when you start another, it'll be there when you |
49 | * shut down another. Hopefully, this subsystem will remove |
50 | * more complexity than it introduces. |
51 | */ |
52 | |
53 | struct RF_ShutdownList_s { |
54 | void (*cleanup) (void *arg); |
55 | void *arg; |
56 | #if RF_DEBUG_SHUTDOWN |
57 | char *file; |
58 | int line; |
59 | #endif |
60 | RF_ShutdownList_t *next; |
61 | }; |
62 | #if RF_DEBUG_SHUTDOWN |
63 | #define rf_ShutdownCreate(_listp_,_func_,_arg_) \ |
64 | _rf_ShutdownCreate(_listp_,_func_,_arg_,__FILE__,__LINE__) |
65 | void _rf_ShutdownCreate(RF_ShutdownList_t **, void (*cleanup) (void *), |
66 | void *, char *, int); |
67 | #else |
68 | #define rf_ShutdownCreate(_listp_,_func_,_arg_) \ |
69 | _rf_ShutdownCreate(_listp_,_func_,_arg_) |
70 | void _rf_ShutdownCreate(RF_ShutdownList_t **, void (*cleanup) (void *), |
71 | void *); |
72 | #endif |
73 | void rf_ShutdownList(RF_ShutdownList_t **); |
74 | |
75 | #endif /* !_RF__RF_SHUTDOWN_H_ */ |
76 | |