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1 | 0bfe3ca5 | Anthony Liguori | /*
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2 | 0bfe3ca5 | Anthony Liguori | * QEMU Module Infrastructure
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3 | 0bfe3ca5 | Anthony Liguori | *
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4 | 0bfe3ca5 | Anthony Liguori | * Copyright IBM, Corp. 2009
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5 | 0bfe3ca5 | Anthony Liguori | *
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6 | 0bfe3ca5 | Anthony Liguori | * Authors:
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7 | 0bfe3ca5 | Anthony Liguori | * Anthony Liguori <aliguori@us.ibm.com>
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8 | 0bfe3ca5 | Anthony Liguori | *
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9 | 0bfe3ca5 | Anthony Liguori | * This work is licensed under the terms of the GNU GPL, version 2. See
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10 | 0bfe3ca5 | Anthony Liguori | * the COPYING file in the top-level directory.
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11 | 0bfe3ca5 | Anthony Liguori | *
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12 | 6b620ca3 | Paolo Bonzini | * Contributions after 2012-01-13 are licensed under the terms of the
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13 | 6b620ca3 | Paolo Bonzini | * GNU GPL, version 2 or (at your option) any later version.
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14 | 0bfe3ca5 | Anthony Liguori | */
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15 | 0bfe3ca5 | Anthony Liguori | |
16 | 0bfe3ca5 | Anthony Liguori | #include "qemu-common.h" |
17 | 72cf2d4f | Blue Swirl | #include "qemu-queue.h" |
18 | 0bfe3ca5 | Anthony Liguori | #include "module.h" |
19 | 0bfe3ca5 | Anthony Liguori | |
20 | 0bfe3ca5 | Anthony Liguori | typedef struct ModuleEntry |
21 | 0bfe3ca5 | Anthony Liguori | { |
22 | 0bfe3ca5 | Anthony Liguori | void (*init)(void); |
23 | 72cf2d4f | Blue Swirl | QTAILQ_ENTRY(ModuleEntry) node; |
24 | 0bfe3ca5 | Anthony Liguori | } ModuleEntry; |
25 | 0bfe3ca5 | Anthony Liguori | |
26 | 72cf2d4f | Blue Swirl | typedef QTAILQ_HEAD(, ModuleEntry) ModuleTypeList;
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27 | 0bfe3ca5 | Anthony Liguori | |
28 | f7897430 | Anthony Liguori | static ModuleTypeList init_type_list[MODULE_INIT_MAX];
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29 | 0bfe3ca5 | Anthony Liguori | |
30 | f7897430 | Anthony Liguori | static void init_types(void) |
31 | 0bfe3ca5 | Anthony Liguori | { |
32 | f7897430 | Anthony Liguori | static int inited; |
33 | f7897430 | Anthony Liguori | int i;
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34 | 0bfe3ca5 | Anthony Liguori | |
35 | f7897430 | Anthony Liguori | if (inited) {
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36 | f7897430 | Anthony Liguori | return;
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37 | 0bfe3ca5 | Anthony Liguori | } |
38 | 0bfe3ca5 | Anthony Liguori | |
39 | f7897430 | Anthony Liguori | for (i = 0; i < MODULE_INIT_MAX; i++) { |
40 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&init_type_list[i]); |
41 | f7897430 | Anthony Liguori | } |
42 | 0bfe3ca5 | Anthony Liguori | |
43 | f7897430 | Anthony Liguori | inited = 1;
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44 | f7897430 | Anthony Liguori | } |
45 | 0bfe3ca5 | Anthony Liguori | |
46 | 0bfe3ca5 | Anthony Liguori | |
47 | f7897430 | Anthony Liguori | static ModuleTypeList *find_type(module_init_type type)
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48 | f7897430 | Anthony Liguori | { |
49 | f7897430 | Anthony Liguori | ModuleTypeList *l; |
50 | 0bfe3ca5 | Anthony Liguori | |
51 | f7897430 | Anthony Liguori | init_types(); |
52 | f7897430 | Anthony Liguori | |
53 | f7897430 | Anthony Liguori | l = &init_type_list[type]; |
54 | 0bfe3ca5 | Anthony Liguori | |
55 | f7897430 | Anthony Liguori | return l;
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56 | 0bfe3ca5 | Anthony Liguori | } |
57 | 0bfe3ca5 | Anthony Liguori | |
58 | 0bfe3ca5 | Anthony Liguori | void register_module_init(void (*fn)(void), module_init_type type) |
59 | 0bfe3ca5 | Anthony Liguori | { |
60 | 0bfe3ca5 | Anthony Liguori | ModuleEntry *e; |
61 | 0bfe3ca5 | Anthony Liguori | ModuleTypeList *l; |
62 | 0bfe3ca5 | Anthony Liguori | |
63 | 7267c094 | Anthony Liguori | e = g_malloc0(sizeof(*e));
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64 | 0bfe3ca5 | Anthony Liguori | e->init = fn; |
65 | 0bfe3ca5 | Anthony Liguori | |
66 | f7897430 | Anthony Liguori | l = find_type(type); |
67 | 0bfe3ca5 | Anthony Liguori | |
68 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(l, e, node); |
69 | 0bfe3ca5 | Anthony Liguori | } |
70 | 0bfe3ca5 | Anthony Liguori | |
71 | 0bfe3ca5 | Anthony Liguori | void module_call_init(module_init_type type)
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72 | 0bfe3ca5 | Anthony Liguori | { |
73 | 0bfe3ca5 | Anthony Liguori | ModuleTypeList *l; |
74 | 0bfe3ca5 | Anthony Liguori | ModuleEntry *e; |
75 | 0bfe3ca5 | Anthony Liguori | |
76 | f7897430 | Anthony Liguori | l = find_type(type); |
77 | 0bfe3ca5 | Anthony Liguori | |
78 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(e, l, node) { |
79 | 0bfe3ca5 | Anthony Liguori | e->init(); |
80 | 0bfe3ca5 | Anthony Liguori | } |
81 | 0bfe3ca5 | Anthony Liguori | } |