1 /* $NetBSD: rf_shutdown.c,v 1.6 2000/01/13 23:41:18 oster Exp $ */ 2 /* 3 * rf_shutdown.c 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 #include "rf_types.h" 37 #include "rf_threadstuff.h" 38 #include "rf_shutdown.h" 39 #include "rf_debugMem.h" 40 #include "rf_freelist.h" 41 42 static void 43 rf_FreeShutdownEnt(RF_ShutdownList_t * ent) 44 { 45 FREE(ent, M_RAIDFRAME); 46 } 47 48 int 49 _rf_ShutdownCreate( 50 RF_ShutdownList_t ** listp, 51 void (*cleanup) (void *arg), 52 void *arg, 53 char *file, 54 int line) 55 { 56 RF_ShutdownList_t *ent; 57 58 /* 59 * Have to directly allocate memory here, since we start up before 60 * and shutdown after RAIDframe internal allocation system. 61 */ 62 /* ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), 63 M_RAIDFRAME, M_WAITOK); */ 64 ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), 65 M_RAIDFRAME, M_NOWAIT); 66 if (ent == NULL) 67 return (ENOMEM); 68 ent->cleanup = cleanup; 69 ent->arg = arg; 70 ent->file = file; 71 ent->line = line; 72 ent->next = *listp; 73 *listp = ent; 74 return (0); 75 } 76 77 int 78 rf_ShutdownList(RF_ShutdownList_t ** list) 79 { 80 RF_ShutdownList_t *r, *next; 81 char *file; 82 int line; 83 84 for (r = *list; r; r = next) { 85 next = r->next; 86 file = r->file; 87 line = r->line; 88 89 if (rf_shutdownDebug) { 90 printf("call shutdown, created %s:%d\n", file, line); 91 } 92 r->cleanup(r->arg); 93 94 if (rf_shutdownDebug) { 95 printf("completed shutdown, created %s:%d\n", file, line); 96 } 97 rf_FreeShutdownEnt(r); 98 } 99 *list = NULL; 100 return (0); 101 } 102