qdev: split out UI portions into a new function
[qemu.git] / module.c
1 /*
2 * QEMU Module Infrastructure
3 *
4 * Copyright IBM, Corp. 2009
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
11 *
12 * Contributions after 2012-01-13 are licensed under the terms of the
13 * GNU GPL, version 2 or (at your option) any later version.
14 */
15
16 #include "qemu-common.h"
17 #include "qemu-queue.h"
18 #include "module.h"
19
20 typedef struct ModuleEntry
21 {
22 module_init_type type;
23 void (*init)(void);
24 QTAILQ_ENTRY(ModuleEntry) node;
25 } ModuleEntry;
26
27 typedef QTAILQ_HEAD(, ModuleEntry) ModuleTypeList;
28
29 static ModuleTypeList init_type_list[MODULE_INIT_MAX];
30
31 static void init_types(void)
32 {
33 static int inited;
34 int i;
35
36 if (inited) {
37 return;
38 }
39
40 for (i = 0; i < MODULE_INIT_MAX; i++) {
41 QTAILQ_INIT(&init_type_list[i]);
42 }
43
44 inited = 1;
45 }
46
47
48 static ModuleTypeList *find_type(module_init_type type)
49 {
50 ModuleTypeList *l;
51
52 init_types();
53
54 l = &init_type_list[type];
55
56 return l;
57 }
58
59 void register_module_init(void (*fn)(void), module_init_type type)
60 {
61 ModuleEntry *e;
62 ModuleTypeList *l;
63
64 e = g_malloc0(sizeof(*e));
65 e->init = fn;
66
67 l = find_type(type);
68
69 QTAILQ_INSERT_TAIL(l, e, node);
70 }
71
72 void module_call_init(module_init_type type)
73 {
74 ModuleTypeList *l;
75 ModuleEntry *e;
76
77 l = find_type(type);
78
79 QTAILQ_FOREACH(e, l, node) {
80 e->init();
81 }
82 }