| 1 | /* $NetBSD: rf_shutdown.c,v 1.20 2008/12/17 20:51:34 cegger 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 1.20 2008/12/17 20:51:34 cegger Exp $" ); |
| 38 | |
| 39 | #include <dev/raidframe/raidframevar.h> |
| 40 | |
| 41 | #include "rf_archs.h" |
| 42 | #include "rf_shutdown.h" |
| 43 | #include "rf_debugMem.h" |
| 44 | |
| 45 | |
| 46 | #ifndef RF_DEBUG_SHUTDOWN |
| 47 | #define RF_DEBUG_SHUTDOWN 0 |
| 48 | #endif |
| 49 | |
| 50 | static void rf_FreeShutdownEnt(RF_ShutdownList_t *); |
| 51 | |
| 52 | static void |
| 53 | rf_FreeShutdownEnt(RF_ShutdownList_t *ent) |
| 54 | { |
| 55 | free(ent, M_RAIDFRAME); |
| 56 | } |
| 57 | |
| 58 | #if RF_DEBUG_SHUTDOWN |
| 59 | void |
| 60 | _rf_ShutdownCreate(RF_ShutdownList_t **listp, void (*cleanup)(void *arg), |
| 61 | void *arg, char *file, int line) |
| 62 | #else |
| 63 | void |
| 64 | _rf_ShutdownCreate(RF_ShutdownList_t **listp, void (*cleanup)(void *arg), |
| 65 | void *arg) |
| 66 | #endif |
| 67 | { |
| 68 | RF_ShutdownList_t *ent; |
| 69 | |
| 70 | /* |
| 71 | * Have to directly allocate memory here, since we start up before |
| 72 | * and shutdown after RAIDframe internal allocation system. |
| 73 | */ |
| 74 | /* ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), |
| 75 | M_RAIDFRAME, M_WAITOK); */ |
| 76 | ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t), |
| 77 | M_RAIDFRAME, M_WAITOK); |
| 78 | ent->cleanup = cleanup; |
| 79 | ent->arg = arg; |
| 80 | #if RF_DEBUG_SHUTDOWN |
| 81 | ent->file = file; |
| 82 | ent->line = line; |
| 83 | #endif |
| 84 | ent->next = *listp; |
| 85 | *listp = ent; |
| 86 | } |
| 87 | |
| 88 | void |
| 89 | rf_ShutdownList(RF_ShutdownList_t **list) |
| 90 | { |
| 91 | RF_ShutdownList_t *r, *next; |
| 92 | #if RF_DEBUG_SHUTDOWN |
| 93 | char *file; |
| 94 | int line; |
| 95 | #endif |
| 96 | |
| 97 | for (r = *list; r; r = next) { |
| 98 | next = r->next; |
| 99 | #if RF_DEBUG_SHUTDOWN |
| 100 | file = r->file; |
| 101 | line = r->line; |
| 102 | |
| 103 | if (rf_shutdownDebug) { |
| 104 | printf("call shutdown, created %s:%d\n" , file, line); |
| 105 | } |
| 106 | #endif |
| 107 | r->cleanup(r->arg); |
| 108 | #if RF_DEBUG_SHUTDOWN |
| 109 | if (rf_shutdownDebug) { |
| 110 | printf("completed shutdown, created %s:%d\n" , file, line); |
| 111 | } |
| 112 | #endif |
| 113 | rf_FreeShutdownEnt(r); |
| 114 | } |
| 115 | *list = NULL; |
| 116 | } |
| 117 | |