| 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 | |