Annotation of sys/dev/raidframe/rf_shutdown.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: rf_shutdown.c,v 1.5 2002/12/16 07:01:05 tdeval Exp $ */
2: /* $NetBSD: rf_shutdown.c,v 1.6 2000/01/13 23:41:18 oster Exp $ */
3:
4: /*
5: * rf_shutdown.c
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: #include "rf_types.h"
39: #include "rf_threadstuff.h"
40: #include "rf_shutdown.h"
41: #include "rf_debugMem.h"
42: #include "rf_freelist.h"
43:
44: void rf_FreeShutdownEnt(RF_ShutdownList_t *);
45: void
46: rf_FreeShutdownEnt(RF_ShutdownList_t *ent)
47: {
48: FREE(ent, M_RAIDFRAME);
49: }
50:
51: int
52: _rf_ShutdownCreate(RF_ShutdownList_t **listp, void (*cleanup) (void *arg),
53: void *arg, char *file, int line)
54: {
55: RF_ShutdownList_t *ent;
56:
57: /*
58: * Have to directly allocate memory here, since we start up before
59: * and shutdown after RAIDframe internal allocation system.
60: */
61: /* ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t),
62: * M_RAIDFRAME, M_WAITOK); */
63: ent = (RF_ShutdownList_t *) malloc(sizeof(RF_ShutdownList_t),
64: M_RAIDFRAME, M_NOWAIT);
65: if (ent == NULL)
66: return (ENOMEM);
67: ent->cleanup = cleanup;
68: ent->arg = arg;
69: ent->file = file;
70: ent->line = line;
71: ent->next = *listp;
72: *listp = ent;
73: return (0);
74: }
75:
76: int
77: rf_ShutdownList(RF_ShutdownList_t **list)
78: {
79: RF_ShutdownList_t *r, *next;
80: char *file;
81: int line;
82:
83: for (r = *list; r; r = next) {
84: next = r->next;
85: file = r->file;
86: line = r->line;
87:
88: if (rf_shutdownDebug) {
89: printf("call shutdown, created %s:%d\n", file, line);
90: }
91: r->cleanup(r->arg);
92:
93: if (rf_shutdownDebug) {
94: printf("completed shutdown, created %s:%d\n", file,
95: line);
96: }
97: rf_FreeShutdownEnt(r);
98: }
99: *list = NULL;
100: return (0);
101: }
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