1 /* $NetBSD: rf_shutdown.c,v 1.9 2001/11/13 07:11:16 lukem 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 <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: rf_shutdown.c,v 1.9 2001/11/13 07:11:16 lukem Exp $"); 38 39 #include <dev/raidframe/raidframevar.h> 40 41 #include "rf_archs.h" 42 #include "rf_threadstuff.h" 43 #include "rf_shutdown.h" 44 #include "rf_debugMem.h" 45 #include "rf_freelist.h" 46 47 static void 48 rf_FreeShutdownEnt(RF_ShutdownList_t * ent) 49 { 50 FREE(ent, M_RAIDFRAME); 51 } 52 53 int 54 _rf_ShutdownCreate( 55 RF_ShutdownList_t ** listp, 56 void (*cleanup) (void *arg), 57 void *arg, 58 char *file, 59 int line) 60 { 61 RF_ShutdownList_t *ent; 62 63 /* 64 * Have to directly allocate memory here, since we start up before 65 * and shutdown after RAIDframe internal allocation system. 66 */ 67 /* ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), 68 M_RAIDFRAME, M_WAITOK); */ 69 ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), 70 M_RAIDFRAME, M_NOWAIT); 71 if (ent == NULL) 72 return (ENOMEM); 73 ent->cleanup = cleanup; 74 ent->arg = arg; 75 ent->file = file; 76 ent->line = line; 77 ent->next = *listp; 78 *listp = ent; 79 return (0); 80 } 81 82 int 83 rf_ShutdownList(RF_ShutdownList_t ** list) 84 { 85 RF_ShutdownList_t *r, *next; 86 char *file; 87 int line; 88 89 for (r = *list; r; r = next) { 90 next = r->next; 91 file = r->file; 92 line = r->line; 93 94 if (rf_shutdownDebug) { 95 printf("call shutdown, created %s:%d\n", file, line); 96 } 97 r->cleanup(r->arg); 98 99 if (rf_shutdownDebug) { 100 printf("completed shutdown, created %s:%d\n", file, line); 101 } 102 rf_FreeShutdownEnt(r); 103 } 104 *list = NULL; 105 return (0); 106 } 107