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0bfe3ca5 AL |
1 | /* |
2 | * QEMU Module Infrastructure | |
3 | * | |
4 | * Copyright IBM, Corp. 2009 | |
5 | * | |
6 | * Authors: | |
7 | * Anthony Liguori <[email protected]> | |
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 | * | |
6b620ca3 PB |
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. | |
0bfe3ca5 AL |
14 | */ |
15 | ||
16 | #include "qemu-common.h" | |
72cf2d4f | 17 | #include "qemu-queue.h" |
0bfe3ca5 AL |
18 | #include "module.h" |
19 | ||
20 | typedef struct ModuleEntry | |
21 | { | |
0bfe3ca5 | 22 | void (*init)(void); |
72cf2d4f | 23 | QTAILQ_ENTRY(ModuleEntry) node; |
0bfe3ca5 AL |
24 | } ModuleEntry; |
25 | ||
72cf2d4f | 26 | typedef QTAILQ_HEAD(, ModuleEntry) ModuleTypeList; |
0bfe3ca5 | 27 | |
f7897430 | 28 | static ModuleTypeList init_type_list[MODULE_INIT_MAX]; |
0bfe3ca5 | 29 | |
f7897430 | 30 | static void init_types(void) |
0bfe3ca5 | 31 | { |
f7897430 AL |
32 | static int inited; |
33 | int i; | |
0bfe3ca5 | 34 | |
f7897430 AL |
35 | if (inited) { |
36 | return; | |
0bfe3ca5 AL |
37 | } |
38 | ||
f7897430 | 39 | for (i = 0; i < MODULE_INIT_MAX; i++) { |
72cf2d4f | 40 | QTAILQ_INIT(&init_type_list[i]); |
f7897430 | 41 | } |
0bfe3ca5 | 42 | |
f7897430 AL |
43 | inited = 1; |
44 | } | |
0bfe3ca5 | 45 | |
0bfe3ca5 | 46 | |
f7897430 AL |
47 | static ModuleTypeList *find_type(module_init_type type) |
48 | { | |
49 | ModuleTypeList *l; | |
0bfe3ca5 | 50 | |
f7897430 AL |
51 | init_types(); |
52 | ||
53 | l = &init_type_list[type]; | |
0bfe3ca5 | 54 | |
f7897430 | 55 | return l; |
0bfe3ca5 AL |
56 | } |
57 | ||
58 | void register_module_init(void (*fn)(void), module_init_type type) | |
59 | { | |
60 | ModuleEntry *e; | |
61 | ModuleTypeList *l; | |
62 | ||
7267c094 | 63 | e = g_malloc0(sizeof(*e)); |
0bfe3ca5 AL |
64 | e->init = fn; |
65 | ||
f7897430 | 66 | l = find_type(type); |
0bfe3ca5 | 67 | |
72cf2d4f | 68 | QTAILQ_INSERT_TAIL(l, e, node); |
0bfe3ca5 AL |
69 | } |
70 | ||
71 | void module_call_init(module_init_type type) | |
72 | { | |
73 | ModuleTypeList *l; | |
74 | ModuleEntry *e; | |
75 | ||
f7897430 | 76 | l = find_type(type); |
0bfe3ca5 | 77 | |
72cf2d4f | 78 | QTAILQ_FOREACH(e, l, node) { |
0bfe3ca5 AL |
79 | e->init(); |
80 | } | |
81 | } |