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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 | module_init_type type; |
23 | 0bfe3ca5 | Anthony Liguori | void (*init)(void); |
24 | 72cf2d4f | Blue Swirl | QTAILQ_ENTRY(ModuleEntry) node; |
25 | 0bfe3ca5 | Anthony Liguori | } ModuleEntry; |
26 | 0bfe3ca5 | Anthony Liguori | |
27 | 72cf2d4f | Blue Swirl | typedef QTAILQ_HEAD(, ModuleEntry) ModuleTypeList;
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28 | 0bfe3ca5 | Anthony Liguori | |
29 | f7897430 | Anthony Liguori | static ModuleTypeList init_type_list[MODULE_INIT_MAX];
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30 | 0bfe3ca5 | Anthony Liguori | |
31 | f7897430 | Anthony Liguori | static void init_types(void) |
32 | 0bfe3ca5 | Anthony Liguori | { |
33 | f7897430 | Anthony Liguori | static int inited; |
34 | f7897430 | Anthony Liguori | int i;
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35 | 0bfe3ca5 | Anthony Liguori | |
36 | f7897430 | Anthony Liguori | if (inited) {
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37 | f7897430 | Anthony Liguori | return;
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38 | 0bfe3ca5 | Anthony Liguori | } |
39 | 0bfe3ca5 | Anthony Liguori | |
40 | f7897430 | Anthony Liguori | for (i = 0; i < MODULE_INIT_MAX; i++) { |
41 | 72cf2d4f | Blue Swirl | QTAILQ_INIT(&init_type_list[i]); |
42 | f7897430 | Anthony Liguori | } |
43 | 0bfe3ca5 | Anthony Liguori | |
44 | f7897430 | Anthony Liguori | inited = 1;
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45 | f7897430 | Anthony Liguori | } |
46 | 0bfe3ca5 | Anthony Liguori | |
47 | 0bfe3ca5 | Anthony Liguori | |
48 | f7897430 | Anthony Liguori | static ModuleTypeList *find_type(module_init_type type)
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49 | f7897430 | Anthony Liguori | { |
50 | f7897430 | Anthony Liguori | ModuleTypeList *l; |
51 | 0bfe3ca5 | Anthony Liguori | |
52 | f7897430 | Anthony Liguori | init_types(); |
53 | f7897430 | Anthony Liguori | |
54 | f7897430 | Anthony Liguori | l = &init_type_list[type]; |
55 | 0bfe3ca5 | Anthony Liguori | |
56 | f7897430 | Anthony Liguori | return l;
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57 | 0bfe3ca5 | Anthony Liguori | } |
58 | 0bfe3ca5 | Anthony Liguori | |
59 | 0bfe3ca5 | Anthony Liguori | void register_module_init(void (*fn)(void), module_init_type type) |
60 | 0bfe3ca5 | Anthony Liguori | { |
61 | 0bfe3ca5 | Anthony Liguori | ModuleEntry *e; |
62 | 0bfe3ca5 | Anthony Liguori | ModuleTypeList *l; |
63 | 0bfe3ca5 | Anthony Liguori | |
64 | 7267c094 | Anthony Liguori | e = g_malloc0(sizeof(*e));
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65 | 0bfe3ca5 | Anthony Liguori | e->init = fn; |
66 | 0bfe3ca5 | Anthony Liguori | |
67 | f7897430 | Anthony Liguori | l = find_type(type); |
68 | 0bfe3ca5 | Anthony Liguori | |
69 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(l, e, node); |
70 | 0bfe3ca5 | Anthony Liguori | } |
71 | 0bfe3ca5 | Anthony Liguori | |
72 | 0bfe3ca5 | Anthony Liguori | void module_call_init(module_init_type type)
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73 | 0bfe3ca5 | Anthony Liguori | { |
74 | 0bfe3ca5 | Anthony Liguori | ModuleTypeList *l; |
75 | 0bfe3ca5 | Anthony Liguori | ModuleEntry *e; |
76 | 0bfe3ca5 | Anthony Liguori | |
77 | f7897430 | Anthony Liguori | l = find_type(type); |
78 | 0bfe3ca5 | Anthony Liguori | |
79 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(e, l, node) { |
80 | 0bfe3ca5 | Anthony Liguori | e->init(); |
81 | 0bfe3ca5 | Anthony Liguori | } |
82 | 0bfe3ca5 | Anthony Liguori | } |