1 /* $OpenBSD: rf_shutdown.h,v 1.4 2002/12/16 07:01:05 tdeval Exp $ */ 2 /* $NetBSD: rf_shutdown.h,v 1.2 1999/02/05 00:06:17 oster Exp $ */ 3 4 /* 5 * rf_shutdown.h 6 */ 7 /* 8 * Copyright (c) 1996 Carnegie-Mellon University. 9 * All rights reserved. 10 * 11 * Author: Jim Zelenka 12 * 13 * Permission to use, copy, modify and distribute this software and 14 * its documentation is hereby granted, provided that both the copyright 15 * notice and this permission notice appear in all copies of the 16 * software, derivative works or modified versions, and any portions 17 * thereof, and that both notices appear in supporting documentation. 18 * 19 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 20 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 21 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 22 * 23 * Carnegie Mellon requests users of this software to return to 24 * 25 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 26 * School of Computer Science 27 * Carnegie Mellon University 28 * Pittsburgh PA 15213-3890 29 * 30 * any improvements or extensions that they make and grant Carnegie the 31 * rights to redistribute these changes. 32 */ 33 /* 34 * Maintain lists of cleanup functions. Also, mechanisms for coordinating 35 * thread startup and shutdown. 36 */ 37 38 #ifndef _RF__RF_SHUTDOWN_H_ 39 #define _RF__RF_SHUTDOWN_H_ 40 41 #include "rf_types.h" 42 #include "rf_threadstuff.h" 43 44 /* 45 * Important note: The shutdown list is run like a stack, new 46 * entries pushed on top. Therefore, the most recently added 47 * entry (last started) is the first removed (stopped). This 48 * should handle system-dependencies pretty nicely- if a system 49 * is there when you start another, it'll be there when you 50 * shut down another. Hopefully, this subsystem will remove 51 * more complexity than it introduces. 52 */ 53 54 struct RF_ShutdownList_s { 55 void (*cleanup) (void *arg); 56 void *arg; 57 char *file; 58 int line; 59 RF_ShutdownList_t *next; 60 }; 61 #define rf_ShutdownCreate(_listp_,_func_,_arg_) \ 62 _rf_ShutdownCreate(_listp_, _func_, _arg_, __FILE__, __LINE__) 63 64 int _rf_ShutdownCreate(RF_ShutdownList_t **, void (*) (void *arg), void *, 65 char *, int); 66 int rf_ShutdownList(RF_ShutdownList_t **); 67 void rf_shutdown_hook(RF_ThreadArg_t); 68 69 #endif /* !_RF__RF_SHUTDOWN_H_ */ 70