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1 | 2f28d2ff | Anthony Liguori | /*
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2 | 2f28d2ff | Anthony Liguori | * QEMU Object Model
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3 | 2f28d2ff | Anthony Liguori | *
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4 | 2f28d2ff | Anthony Liguori | * Copyright IBM, Corp. 2011
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5 | 2f28d2ff | Anthony Liguori | *
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6 | 2f28d2ff | Anthony Liguori | * Authors:
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7 | 2f28d2ff | Anthony Liguori | * Anthony Liguori <aliguori@us.ibm.com>
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8 | 2f28d2ff | Anthony Liguori | *
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9 | 2f28d2ff | Anthony Liguori | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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10 | 2f28d2ff | Anthony Liguori | * See the COPYING file in the top-level directory.
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11 | 2f28d2ff | Anthony Liguori | */
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12 | 2f28d2ff | Anthony Liguori | |
13 | 2f28d2ff | Anthony Liguori | #include "qemu/object.h" |
14 | 2f28d2ff | Anthony Liguori | #include "qemu-common.h" |
15 | 57c9fafe | Anthony Liguori | #include "qapi/qapi-visit-core.h" |
16 | b2cd7dee | Paolo Bonzini | #include "qapi/string-input-visitor.h" |
17 | b2cd7dee | Paolo Bonzini | #include "qapi/string-output-visitor.h" |
18 | 2f28d2ff | Anthony Liguori | |
19 | 7b7b7d18 | Paolo Bonzini | /* TODO: replace QObject with a simpler visitor to avoid a dependency
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20 | 7b7b7d18 | Paolo Bonzini | * of the QOM core on QObject? */
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21 | 7b7b7d18 | Paolo Bonzini | #include "qemu/qom-qobject.h" |
22 | 7b7b7d18 | Paolo Bonzini | #include "qobject.h" |
23 | 7b7b7d18 | Paolo Bonzini | #include "qbool.h" |
24 | 7b7b7d18 | Paolo Bonzini | #include "qint.h" |
25 | 7b7b7d18 | Paolo Bonzini | #include "qstring.h" |
26 | 7b7b7d18 | Paolo Bonzini | |
27 | 2f28d2ff | Anthony Liguori | #define MAX_INTERFACES 32 |
28 | 2f28d2ff | Anthony Liguori | |
29 | 2f28d2ff | Anthony Liguori | typedef struct InterfaceImpl InterfaceImpl; |
30 | 2f28d2ff | Anthony Liguori | typedef struct TypeImpl TypeImpl; |
31 | 2f28d2ff | Anthony Liguori | |
32 | 2f28d2ff | Anthony Liguori | struct InterfaceImpl
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33 | 2f28d2ff | Anthony Liguori | { |
34 | 2f28d2ff | Anthony Liguori | const char *parent; |
35 | 2f28d2ff | Anthony Liguori | void (*interface_initfn)(ObjectClass *class, void *data); |
36 | 2f28d2ff | Anthony Liguori | TypeImpl *type; |
37 | 2f28d2ff | Anthony Liguori | }; |
38 | 2f28d2ff | Anthony Liguori | |
39 | 2f28d2ff | Anthony Liguori | struct TypeImpl
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40 | 2f28d2ff | Anthony Liguori | { |
41 | 2f28d2ff | Anthony Liguori | const char *name; |
42 | 2f28d2ff | Anthony Liguori | |
43 | 2f28d2ff | Anthony Liguori | size_t class_size; |
44 | 2f28d2ff | Anthony Liguori | |
45 | 2f28d2ff | Anthony Liguori | size_t instance_size; |
46 | 2f28d2ff | Anthony Liguori | |
47 | 2f28d2ff | Anthony Liguori | void (*class_init)(ObjectClass *klass, void *data); |
48 | 2f28d2ff | Anthony Liguori | void (*class_finalize)(ObjectClass *klass, void *data); |
49 | 2f28d2ff | Anthony Liguori | |
50 | 2f28d2ff | Anthony Liguori | void *class_data;
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51 | 2f28d2ff | Anthony Liguori | |
52 | 2f28d2ff | Anthony Liguori | void (*instance_init)(Object *obj);
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53 | 2f28d2ff | Anthony Liguori | void (*instance_finalize)(Object *obj);
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54 | 2f28d2ff | Anthony Liguori | |
55 | 2f28d2ff | Anthony Liguori | bool abstract;
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56 | 2f28d2ff | Anthony Liguori | |
57 | 2f28d2ff | Anthony Liguori | const char *parent; |
58 | 2f28d2ff | Anthony Liguori | TypeImpl *parent_type; |
59 | 2f28d2ff | Anthony Liguori | |
60 | 2f28d2ff | Anthony Liguori | ObjectClass *class; |
61 | 2f28d2ff | Anthony Liguori | |
62 | 2f28d2ff | Anthony Liguori | int num_interfaces;
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63 | 2f28d2ff | Anthony Liguori | InterfaceImpl interfaces[MAX_INTERFACES]; |
64 | 2f28d2ff | Anthony Liguori | }; |
65 | 2f28d2ff | Anthony Liguori | |
66 | 2f28d2ff | Anthony Liguori | typedef struct Interface |
67 | 2f28d2ff | Anthony Liguori | { |
68 | 2f28d2ff | Anthony Liguori | Object parent; |
69 | 2f28d2ff | Anthony Liguori | Object *obj; |
70 | 2f28d2ff | Anthony Liguori | } Interface; |
71 | 2f28d2ff | Anthony Liguori | |
72 | 2f28d2ff | Anthony Liguori | #define INTERFACE(obj) OBJECT_CHECK(Interface, obj, TYPE_INTERFACE)
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73 | 2f28d2ff | Anthony Liguori | |
74 | 9970bd88 | Paolo Bonzini | static Type type_interface;
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75 | 9970bd88 | Paolo Bonzini | |
76 | 2f28d2ff | Anthony Liguori | static GHashTable *type_table_get(void) |
77 | 2f28d2ff | Anthony Liguori | { |
78 | 2f28d2ff | Anthony Liguori | static GHashTable *type_table;
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79 | 2f28d2ff | Anthony Liguori | |
80 | 2f28d2ff | Anthony Liguori | if (type_table == NULL) { |
81 | 2f28d2ff | Anthony Liguori | type_table = g_hash_table_new(g_str_hash, g_str_equal); |
82 | 2f28d2ff | Anthony Liguori | } |
83 | 2f28d2ff | Anthony Liguori | |
84 | 2f28d2ff | Anthony Liguori | return type_table;
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85 | 2f28d2ff | Anthony Liguori | } |
86 | 2f28d2ff | Anthony Liguori | |
87 | 2f28d2ff | Anthony Liguori | static void type_table_add(TypeImpl *ti) |
88 | 2f28d2ff | Anthony Liguori | { |
89 | 2f28d2ff | Anthony Liguori | g_hash_table_insert(type_table_get(), (void *)ti->name, ti);
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90 | 2f28d2ff | Anthony Liguori | } |
91 | 2f28d2ff | Anthony Liguori | |
92 | 2f28d2ff | Anthony Liguori | static TypeImpl *type_table_lookup(const char *name) |
93 | 2f28d2ff | Anthony Liguori | { |
94 | 2f28d2ff | Anthony Liguori | return g_hash_table_lookup(type_table_get(), name);
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95 | 2f28d2ff | Anthony Liguori | } |
96 | 2f28d2ff | Anthony Liguori | |
97 | 2f28d2ff | Anthony Liguori | TypeImpl *type_register(const TypeInfo *info)
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98 | 2f28d2ff | Anthony Liguori | { |
99 | 2f28d2ff | Anthony Liguori | TypeImpl *ti = g_malloc0(sizeof(*ti));
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100 | 2f28d2ff | Anthony Liguori | |
101 | 2f28d2ff | Anthony Liguori | g_assert(info->name != NULL);
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102 | 2f28d2ff | Anthony Liguori | |
103 | 73093354 | Anthony Liguori | if (type_table_lookup(info->name) != NULL) { |
104 | 73093354 | Anthony Liguori | fprintf(stderr, "Registering `%s' which already exists\n", info->name);
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105 | 73093354 | Anthony Liguori | abort(); |
106 | 73093354 | Anthony Liguori | } |
107 | 73093354 | Anthony Liguori | |
108 | 2f28d2ff | Anthony Liguori | ti->name = g_strdup(info->name); |
109 | 2f28d2ff | Anthony Liguori | ti->parent = g_strdup(info->parent); |
110 | 2f28d2ff | Anthony Liguori | |
111 | 2f28d2ff | Anthony Liguori | ti->class_size = info->class_size; |
112 | 2f28d2ff | Anthony Liguori | ti->instance_size = info->instance_size; |
113 | 2f28d2ff | Anthony Liguori | |
114 | 2f28d2ff | Anthony Liguori | ti->class_init = info->class_init; |
115 | 2f28d2ff | Anthony Liguori | ti->class_finalize = info->class_finalize; |
116 | 2f28d2ff | Anthony Liguori | ti->class_data = info->class_data; |
117 | 2f28d2ff | Anthony Liguori | |
118 | 2f28d2ff | Anthony Liguori | ti->instance_init = info->instance_init; |
119 | 2f28d2ff | Anthony Liguori | ti->instance_finalize = info->instance_finalize; |
120 | 2f28d2ff | Anthony Liguori | |
121 | 2f28d2ff | Anthony Liguori | ti->abstract = info->abstract; |
122 | 2f28d2ff | Anthony Liguori | |
123 | 2f28d2ff | Anthony Liguori | if (info->interfaces) {
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124 | 2f28d2ff | Anthony Liguori | int i;
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125 | 2f28d2ff | Anthony Liguori | |
126 | 2f28d2ff | Anthony Liguori | for (i = 0; info->interfaces[i].type; i++) { |
127 | 2f28d2ff | Anthony Liguori | ti->interfaces[i].parent = info->interfaces[i].type; |
128 | 2f28d2ff | Anthony Liguori | ti->interfaces[i].interface_initfn = info->interfaces[i].interface_initfn; |
129 | 2f28d2ff | Anthony Liguori | ti->num_interfaces++; |
130 | 2f28d2ff | Anthony Liguori | } |
131 | 2f28d2ff | Anthony Liguori | } |
132 | 2f28d2ff | Anthony Liguori | |
133 | 2f28d2ff | Anthony Liguori | type_table_add(ti); |
134 | 2f28d2ff | Anthony Liguori | |
135 | 2f28d2ff | Anthony Liguori | return ti;
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136 | 2f28d2ff | Anthony Liguori | } |
137 | 2f28d2ff | Anthony Liguori | |
138 | 2f28d2ff | Anthony Liguori | TypeImpl *type_register_static(const TypeInfo *info)
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139 | 2f28d2ff | Anthony Liguori | { |
140 | 2f28d2ff | Anthony Liguori | return type_register(info);
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141 | 2f28d2ff | Anthony Liguori | } |
142 | 2f28d2ff | Anthony Liguori | |
143 | 2f28d2ff | Anthony Liguori | static TypeImpl *type_get_by_name(const char *name) |
144 | 2f28d2ff | Anthony Liguori | { |
145 | 2f28d2ff | Anthony Liguori | if (name == NULL) { |
146 | 2f28d2ff | Anthony Liguori | return NULL; |
147 | 2f28d2ff | Anthony Liguori | } |
148 | 2f28d2ff | Anthony Liguori | |
149 | 2f28d2ff | Anthony Liguori | return type_table_lookup(name);
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150 | 2f28d2ff | Anthony Liguori | } |
151 | 2f28d2ff | Anthony Liguori | |
152 | 2f28d2ff | Anthony Liguori | static TypeImpl *type_get_parent(TypeImpl *type)
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153 | 2f28d2ff | Anthony Liguori | { |
154 | 2f28d2ff | Anthony Liguori | if (!type->parent_type && type->parent) {
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155 | 2f28d2ff | Anthony Liguori | type->parent_type = type_get_by_name(type->parent); |
156 | 2f28d2ff | Anthony Liguori | g_assert(type->parent_type != NULL);
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157 | 2f28d2ff | Anthony Liguori | } |
158 | 2f28d2ff | Anthony Liguori | |
159 | 2f28d2ff | Anthony Liguori | return type->parent_type;
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160 | 2f28d2ff | Anthony Liguori | } |
161 | 2f28d2ff | Anthony Liguori | |
162 | 2f28d2ff | Anthony Liguori | static bool type_has_parent(TypeImpl *type) |
163 | 2f28d2ff | Anthony Liguori | { |
164 | 2f28d2ff | Anthony Liguori | return (type->parent != NULL); |
165 | 2f28d2ff | Anthony Liguori | } |
166 | 2f28d2ff | Anthony Liguori | |
167 | 2f28d2ff | Anthony Liguori | static size_t type_class_get_size(TypeImpl *ti)
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168 | 2f28d2ff | Anthony Liguori | { |
169 | 2f28d2ff | Anthony Liguori | if (ti->class_size) {
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170 | 2f28d2ff | Anthony Liguori | return ti->class_size;
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171 | 2f28d2ff | Anthony Liguori | } |
172 | 2f28d2ff | Anthony Liguori | |
173 | 2f28d2ff | Anthony Liguori | if (type_has_parent(ti)) {
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174 | 2f28d2ff | Anthony Liguori | return type_class_get_size(type_get_parent(ti));
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175 | 2f28d2ff | Anthony Liguori | } |
176 | 2f28d2ff | Anthony Liguori | |
177 | 2f28d2ff | Anthony Liguori | return sizeof(ObjectClass); |
178 | 2f28d2ff | Anthony Liguori | } |
179 | 2f28d2ff | Anthony Liguori | |
180 | aca59af6 | Igor Mitsyanko | static size_t type_object_get_size(TypeImpl *ti)
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181 | aca59af6 | Igor Mitsyanko | { |
182 | aca59af6 | Igor Mitsyanko | if (ti->instance_size) {
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183 | aca59af6 | Igor Mitsyanko | return ti->instance_size;
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184 | aca59af6 | Igor Mitsyanko | } |
185 | aca59af6 | Igor Mitsyanko | |
186 | aca59af6 | Igor Mitsyanko | if (type_has_parent(ti)) {
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187 | aca59af6 | Igor Mitsyanko | return type_object_get_size(type_get_parent(ti));
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188 | aca59af6 | Igor Mitsyanko | } |
189 | aca59af6 | Igor Mitsyanko | |
190 | aca59af6 | Igor Mitsyanko | return 0; |
191 | aca59af6 | Igor Mitsyanko | } |
192 | aca59af6 | Igor Mitsyanko | |
193 | 2f28d2ff | Anthony Liguori | static void type_class_interface_init(TypeImpl *ti, InterfaceImpl *iface) |
194 | 2f28d2ff | Anthony Liguori | { |
195 | 2f28d2ff | Anthony Liguori | TypeInfo info = { |
196 | 2f28d2ff | Anthony Liguori | .instance_size = sizeof(Interface),
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197 | 2f28d2ff | Anthony Liguori | .parent = iface->parent, |
198 | 2f28d2ff | Anthony Liguori | .class_size = sizeof(InterfaceClass),
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199 | 2f28d2ff | Anthony Liguori | .class_init = iface->interface_initfn, |
200 | 2f28d2ff | Anthony Liguori | .abstract = true,
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201 | 2f28d2ff | Anthony Liguori | }; |
202 | 2f28d2ff | Anthony Liguori | char *name = g_strdup_printf("<%s::%s>", ti->name, iface->parent); |
203 | 2f28d2ff | Anthony Liguori | |
204 | 2f28d2ff | Anthony Liguori | info.name = name; |
205 | 2f28d2ff | Anthony Liguori | iface->type = type_register(&info); |
206 | 2f28d2ff | Anthony Liguori | g_free(name); |
207 | 2f28d2ff | Anthony Liguori | } |
208 | 2f28d2ff | Anthony Liguori | |
209 | 2f28d2ff | Anthony Liguori | static void type_class_init(TypeImpl *ti) |
210 | 2f28d2ff | Anthony Liguori | { |
211 | 2f28d2ff | Anthony Liguori | size_t class_size = sizeof(ObjectClass);
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212 | 2f28d2ff | Anthony Liguori | int i;
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213 | 2f28d2ff | Anthony Liguori | |
214 | 2f28d2ff | Anthony Liguori | if (ti->class) {
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215 | 2f28d2ff | Anthony Liguori | return;
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216 | 2f28d2ff | Anthony Liguori | } |
217 | 2f28d2ff | Anthony Liguori | |
218 | 2f28d2ff | Anthony Liguori | ti->class_size = type_class_get_size(ti); |
219 | aca59af6 | Igor Mitsyanko | ti->instance_size = type_object_get_size(ti); |
220 | 2f28d2ff | Anthony Liguori | |
221 | 2f28d2ff | Anthony Liguori | ti->class = g_malloc0(ti->class_size); |
222 | 2f28d2ff | Anthony Liguori | ti->class->type = ti; |
223 | 2f28d2ff | Anthony Liguori | |
224 | 2f28d2ff | Anthony Liguori | if (type_has_parent(ti)) {
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225 | 2f28d2ff | Anthony Liguori | TypeImpl *parent = type_get_parent(ti); |
226 | 2f28d2ff | Anthony Liguori | |
227 | 2f28d2ff | Anthony Liguori | type_class_init(parent); |
228 | 2f28d2ff | Anthony Liguori | |
229 | 2f28d2ff | Anthony Liguori | class_size = parent->class_size; |
230 | 2f28d2ff | Anthony Liguori | g_assert(parent->class_size <= ti->class_size); |
231 | 2f28d2ff | Anthony Liguori | |
232 | 2f28d2ff | Anthony Liguori | memcpy((void *)ti->class + sizeof(ObjectClass), |
233 | 2f28d2ff | Anthony Liguori | (void *)parent->class + sizeof(ObjectClass), |
234 | 2f28d2ff | Anthony Liguori | parent->class_size - sizeof(ObjectClass));
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235 | 2f28d2ff | Anthony Liguori | } |
236 | 2f28d2ff | Anthony Liguori | |
237 | 2f28d2ff | Anthony Liguori | memset((void *)ti->class + class_size, 0, ti->class_size - class_size); |
238 | 2f28d2ff | Anthony Liguori | |
239 | 2f28d2ff | Anthony Liguori | for (i = 0; i < ti->num_interfaces; i++) { |
240 | 2f28d2ff | Anthony Liguori | type_class_interface_init(ti, &ti->interfaces[i]); |
241 | 2f28d2ff | Anthony Liguori | } |
242 | 2f28d2ff | Anthony Liguori | |
243 | 2f28d2ff | Anthony Liguori | if (ti->class_init) {
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244 | 2f28d2ff | Anthony Liguori | ti->class_init(ti->class, ti->class_data); |
245 | 2f28d2ff | Anthony Liguori | } |
246 | 2f28d2ff | Anthony Liguori | } |
247 | 2f28d2ff | Anthony Liguori | |
248 | 2f28d2ff | Anthony Liguori | static void object_interface_init(Object *obj, InterfaceImpl *iface) |
249 | 2f28d2ff | Anthony Liguori | { |
250 | 2f28d2ff | Anthony Liguori | TypeImpl *ti = iface->type; |
251 | 2f28d2ff | Anthony Liguori | Interface *iface_obj; |
252 | 2f28d2ff | Anthony Liguori | |
253 | 2f28d2ff | Anthony Liguori | iface_obj = INTERFACE(object_new(ti->name)); |
254 | 2f28d2ff | Anthony Liguori | iface_obj->obj = obj; |
255 | 2f28d2ff | Anthony Liguori | |
256 | 2f28d2ff | Anthony Liguori | obj->interfaces = g_slist_prepend(obj->interfaces, iface_obj); |
257 | 2f28d2ff | Anthony Liguori | } |
258 | 2f28d2ff | Anthony Liguori | |
259 | 2f28d2ff | Anthony Liguori | static void object_init_with_type(Object *obj, TypeImpl *ti) |
260 | 2f28d2ff | Anthony Liguori | { |
261 | 2f28d2ff | Anthony Liguori | int i;
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262 | 2f28d2ff | Anthony Liguori | |
263 | 2f28d2ff | Anthony Liguori | if (type_has_parent(ti)) {
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264 | 2f28d2ff | Anthony Liguori | object_init_with_type(obj, type_get_parent(ti)); |
265 | 2f28d2ff | Anthony Liguori | } |
266 | 2f28d2ff | Anthony Liguori | |
267 | 2f28d2ff | Anthony Liguori | for (i = 0; i < ti->num_interfaces; i++) { |
268 | 2f28d2ff | Anthony Liguori | object_interface_init(obj, &ti->interfaces[i]); |
269 | 2f28d2ff | Anthony Liguori | } |
270 | 2f28d2ff | Anthony Liguori | |
271 | 2f28d2ff | Anthony Liguori | if (ti->instance_init) {
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272 | 2f28d2ff | Anthony Liguori | ti->instance_init(obj); |
273 | 2f28d2ff | Anthony Liguori | } |
274 | 2f28d2ff | Anthony Liguori | } |
275 | 2f28d2ff | Anthony Liguori | |
276 | 2f28d2ff | Anthony Liguori | void object_initialize_with_type(void *data, TypeImpl *type) |
277 | 2f28d2ff | Anthony Liguori | { |
278 | 2f28d2ff | Anthony Liguori | Object *obj = data; |
279 | 2f28d2ff | Anthony Liguori | |
280 | 2f28d2ff | Anthony Liguori | g_assert(type != NULL);
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281 | 2f28d2ff | Anthony Liguori | type_class_init(type); |
282 | aca59af6 | Igor Mitsyanko | |
283 | aca59af6 | Igor Mitsyanko | g_assert(type->instance_size >= sizeof(Object));
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284 | 2f28d2ff | Anthony Liguori | g_assert(type->abstract == false);
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285 | 2f28d2ff | Anthony Liguori | |
286 | 2f28d2ff | Anthony Liguori | memset(obj, 0, type->instance_size);
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287 | 2f28d2ff | Anthony Liguori | obj->class = type->class; |
288 | 57c9fafe | Anthony Liguori | QTAILQ_INIT(&obj->properties); |
289 | 2f28d2ff | Anthony Liguori | object_init_with_type(obj, type); |
290 | 2f28d2ff | Anthony Liguori | } |
291 | 2f28d2ff | Anthony Liguori | |
292 | 2f28d2ff | Anthony Liguori | void object_initialize(void *data, const char *typename) |
293 | 2f28d2ff | Anthony Liguori | { |
294 | 2f28d2ff | Anthony Liguori | TypeImpl *type = type_get_by_name(typename); |
295 | 2f28d2ff | Anthony Liguori | |
296 | 2f28d2ff | Anthony Liguori | object_initialize_with_type(data, type); |
297 | 2f28d2ff | Anthony Liguori | } |
298 | 2f28d2ff | Anthony Liguori | |
299 | 57c9fafe | Anthony Liguori | static void object_property_del_all(Object *obj) |
300 | 57c9fafe | Anthony Liguori | { |
301 | 57c9fafe | Anthony Liguori | while (!QTAILQ_EMPTY(&obj->properties)) {
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302 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = QTAILQ_FIRST(&obj->properties); |
303 | 57c9fafe | Anthony Liguori | |
304 | 57c9fafe | Anthony Liguori | QTAILQ_REMOVE(&obj->properties, prop, node); |
305 | 57c9fafe | Anthony Liguori | |
306 | 57c9fafe | Anthony Liguori | if (prop->release) {
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307 | 57c9fafe | Anthony Liguori | prop->release(obj, prop->name, prop->opaque); |
308 | 57c9fafe | Anthony Liguori | } |
309 | 57c9fafe | Anthony Liguori | |
310 | 57c9fafe | Anthony Liguori | g_free(prop->name); |
311 | 57c9fafe | Anthony Liguori | g_free(prop->type); |
312 | 57c9fafe | Anthony Liguori | g_free(prop); |
313 | 57c9fafe | Anthony Liguori | } |
314 | 57c9fafe | Anthony Liguori | } |
315 | 57c9fafe | Anthony Liguori | |
316 | 57c9fafe | Anthony Liguori | static void object_property_del_child(Object *obj, Object *child, Error **errp) |
317 | 57c9fafe | Anthony Liguori | { |
318 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
319 | 57c9fafe | Anthony Liguori | |
320 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &obj->properties, node) { |
321 | 6c1fdcf9 | Paolo Bonzini | if (strstart(prop->type, "child<", NULL) && prop->opaque == child) { |
322 | 57c9fafe | Anthony Liguori | object_property_del(obj, prop->name, errp); |
323 | 6c1fdcf9 | Paolo Bonzini | break;
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324 | 57c9fafe | Anthony Liguori | } |
325 | 57c9fafe | Anthony Liguori | } |
326 | 57c9fafe | Anthony Liguori | } |
327 | 57c9fafe | Anthony Liguori | |
328 | 57c9fafe | Anthony Liguori | void object_unparent(Object *obj)
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329 | 57c9fafe | Anthony Liguori | { |
330 | 57c9fafe | Anthony Liguori | if (obj->parent) {
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331 | 57c9fafe | Anthony Liguori | object_property_del_child(obj->parent, obj, NULL);
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332 | 57c9fafe | Anthony Liguori | } |
333 | 57c9fafe | Anthony Liguori | } |
334 | 57c9fafe | Anthony Liguori | |
335 | 2f28d2ff | Anthony Liguori | static void object_deinit(Object *obj, TypeImpl *type) |
336 | 2f28d2ff | Anthony Liguori | { |
337 | 2f28d2ff | Anthony Liguori | if (type->instance_finalize) {
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338 | 2f28d2ff | Anthony Liguori | type->instance_finalize(obj); |
339 | 2f28d2ff | Anthony Liguori | } |
340 | 2f28d2ff | Anthony Liguori | |
341 | 2f28d2ff | Anthony Liguori | while (obj->interfaces) {
|
342 | 2f28d2ff | Anthony Liguori | Interface *iface_obj = obj->interfaces->data; |
343 | 2f28d2ff | Anthony Liguori | obj->interfaces = g_slist_delete_link(obj->interfaces, obj->interfaces); |
344 | 2f28d2ff | Anthony Liguori | object_delete(OBJECT(iface_obj)); |
345 | 2f28d2ff | Anthony Liguori | } |
346 | 2f28d2ff | Anthony Liguori | |
347 | 2f28d2ff | Anthony Liguori | if (type_has_parent(type)) {
|
348 | 2f28d2ff | Anthony Liguori | object_deinit(obj, type_get_parent(type)); |
349 | 2f28d2ff | Anthony Liguori | } |
350 | 57c9fafe | Anthony Liguori | |
351 | 57c9fafe | Anthony Liguori | object_unparent(obj); |
352 | 2f28d2ff | Anthony Liguori | } |
353 | 2f28d2ff | Anthony Liguori | |
354 | 2f28d2ff | Anthony Liguori | void object_finalize(void *data) |
355 | 2f28d2ff | Anthony Liguori | { |
356 | 2f28d2ff | Anthony Liguori | Object *obj = data; |
357 | 2f28d2ff | Anthony Liguori | TypeImpl *ti = obj->class->type; |
358 | 2f28d2ff | Anthony Liguori | |
359 | 2f28d2ff | Anthony Liguori | object_deinit(obj, ti); |
360 | 57c9fafe | Anthony Liguori | object_property_del_all(obj); |
361 | db85b575 | Anthony Liguori | |
362 | db85b575 | Anthony Liguori | g_assert(obj->ref == 0);
|
363 | 2f28d2ff | Anthony Liguori | } |
364 | 2f28d2ff | Anthony Liguori | |
365 | 2f28d2ff | Anthony Liguori | Object *object_new_with_type(Type type) |
366 | 2f28d2ff | Anthony Liguori | { |
367 | 2f28d2ff | Anthony Liguori | Object *obj; |
368 | 2f28d2ff | Anthony Liguori | |
369 | 2f28d2ff | Anthony Liguori | g_assert(type != NULL);
|
370 | aca59af6 | Igor Mitsyanko | type_class_init(type); |
371 | 2f28d2ff | Anthony Liguori | |
372 | 2f28d2ff | Anthony Liguori | obj = g_malloc(type->instance_size); |
373 | 2f28d2ff | Anthony Liguori | object_initialize_with_type(obj, type); |
374 | db85b575 | Anthony Liguori | object_ref(obj); |
375 | 2f28d2ff | Anthony Liguori | |
376 | 2f28d2ff | Anthony Liguori | return obj;
|
377 | 2f28d2ff | Anthony Liguori | } |
378 | 2f28d2ff | Anthony Liguori | |
379 | 2f28d2ff | Anthony Liguori | Object *object_new(const char *typename) |
380 | 2f28d2ff | Anthony Liguori | { |
381 | 2f28d2ff | Anthony Liguori | TypeImpl *ti = type_get_by_name(typename); |
382 | 2f28d2ff | Anthony Liguori | |
383 | 2f28d2ff | Anthony Liguori | return object_new_with_type(ti);
|
384 | 2f28d2ff | Anthony Liguori | } |
385 | 2f28d2ff | Anthony Liguori | |
386 | 2f28d2ff | Anthony Liguori | void object_delete(Object *obj)
|
387 | 2f28d2ff | Anthony Liguori | { |
388 | db85b575 | Anthony Liguori | object_unref(obj); |
389 | db85b575 | Anthony Liguori | g_assert(obj->ref == 0);
|
390 | 2f28d2ff | Anthony Liguori | g_free(obj); |
391 | 2f28d2ff | Anthony Liguori | } |
392 | 2f28d2ff | Anthony Liguori | |
393 | acc4af3f | Paolo Bonzini | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
394 | 2f28d2ff | Anthony Liguori | { |
395 | acc4af3f | Paolo Bonzini | assert(target_type); |
396 | 2f28d2ff | Anthony Liguori | |
397 | 2f28d2ff | Anthony Liguori | /* Check if typename is a direct ancestor of type */
|
398 | 2f28d2ff | Anthony Liguori | while (type) {
|
399 | 2f28d2ff | Anthony Liguori | if (type == target_type) {
|
400 | 2f28d2ff | Anthony Liguori | return true; |
401 | 2f28d2ff | Anthony Liguori | } |
402 | 2f28d2ff | Anthony Liguori | |
403 | 2f28d2ff | Anthony Liguori | type = type_get_parent(type); |
404 | 2f28d2ff | Anthony Liguori | } |
405 | 2f28d2ff | Anthony Liguori | |
406 | acc4af3f | Paolo Bonzini | return false; |
407 | acc4af3f | Paolo Bonzini | } |
408 | 2f28d2ff | Anthony Liguori | |
409 | 9970bd88 | Paolo Bonzini | static bool object_is_type(Object *obj, TypeImpl *target_type) |
410 | acc4af3f | Paolo Bonzini | { |
411 | 9970bd88 | Paolo Bonzini | return !target_type || type_is_ancestor(obj->class->type, target_type);
|
412 | 2f28d2ff | Anthony Liguori | } |
413 | 2f28d2ff | Anthony Liguori | |
414 | 2f28d2ff | Anthony Liguori | Object *object_dynamic_cast(Object *obj, const char *typename) |
415 | 2f28d2ff | Anthony Liguori | { |
416 | 9970bd88 | Paolo Bonzini | TypeImpl *target_type = type_get_by_name(typename); |
417 | 2f28d2ff | Anthony Liguori | GSList *i; |
418 | 2f28d2ff | Anthony Liguori | |
419 | acc4af3f | Paolo Bonzini | /* Check if typename is a direct ancestor. Special-case TYPE_OBJECT,
|
420 | acc4af3f | Paolo Bonzini | * we want to go back from interfaces to the parent.
|
421 | acc4af3f | Paolo Bonzini | */
|
422 | 9970bd88 | Paolo Bonzini | if (target_type && object_is_type(obj, target_type)) {
|
423 | acc4af3f | Paolo Bonzini | return obj;
|
424 | acc4af3f | Paolo Bonzini | } |
425 | acc4af3f | Paolo Bonzini | |
426 | acc4af3f | Paolo Bonzini | /* Check if obj is an interface and its containing object is a direct
|
427 | acc4af3f | Paolo Bonzini | * ancestor of typename. In principle we could do this test at the very
|
428 | acc4af3f | Paolo Bonzini | * beginning of object_dynamic_cast, avoiding a second call to
|
429 | acc4af3f | Paolo Bonzini | * object_is_type. However, casting between interfaces is relatively
|
430 | 9970bd88 | Paolo Bonzini | * rare, and object_is_type(obj, type_interface) would fail almost always.
|
431 | acc4af3f | Paolo Bonzini | *
|
432 | acc4af3f | Paolo Bonzini | * Perhaps we could add a magic value to the object header for increased
|
433 | acc4af3f | Paolo Bonzini | * (run-time) type safety and to speed up tests like this one. If we ever
|
434 | acc4af3f | Paolo Bonzini | * do that we can revisit the order here.
|
435 | acc4af3f | Paolo Bonzini | */
|
436 | 9970bd88 | Paolo Bonzini | if (object_is_type(obj, type_interface)) {
|
437 | acc4af3f | Paolo Bonzini | assert(!obj->interfaces); |
438 | acc4af3f | Paolo Bonzini | obj = INTERFACE(obj)->obj; |
439 | 9970bd88 | Paolo Bonzini | if (object_is_type(obj, target_type)) {
|
440 | acc4af3f | Paolo Bonzini | return obj;
|
441 | acc4af3f | Paolo Bonzini | } |
442 | acc4af3f | Paolo Bonzini | } |
443 | acc4af3f | Paolo Bonzini | |
444 | 9970bd88 | Paolo Bonzini | if (!target_type) {
|
445 | 2f28d2ff | Anthony Liguori | return obj;
|
446 | 2f28d2ff | Anthony Liguori | } |
447 | 2f28d2ff | Anthony Liguori | |
448 | 2f28d2ff | Anthony Liguori | /* Check if obj has an interface of typename */
|
449 | 2f28d2ff | Anthony Liguori | for (i = obj->interfaces; i; i = i->next) {
|
450 | 2f28d2ff | Anthony Liguori | Interface *iface = i->data; |
451 | 2f28d2ff | Anthony Liguori | |
452 | 9970bd88 | Paolo Bonzini | if (object_is_type(OBJECT(iface), target_type)) {
|
453 | 2f28d2ff | Anthony Liguori | return OBJECT(iface);
|
454 | 2f28d2ff | Anthony Liguori | } |
455 | 2f28d2ff | Anthony Liguori | } |
456 | 2f28d2ff | Anthony Liguori | |
457 | 2f28d2ff | Anthony Liguori | return NULL; |
458 | 2f28d2ff | Anthony Liguori | } |
459 | 2f28d2ff | Anthony Liguori | |
460 | 2f28d2ff | Anthony Liguori | |
461 | 83f7d43a | Andreas Fรคrber | static void register_types(void) |
462 | 2f28d2ff | Anthony Liguori | { |
463 | 2f28d2ff | Anthony Liguori | static TypeInfo interface_info = {
|
464 | 2f28d2ff | Anthony Liguori | .name = TYPE_INTERFACE, |
465 | 2f28d2ff | Anthony Liguori | .instance_size = sizeof(Interface),
|
466 | 2f28d2ff | Anthony Liguori | .abstract = true,
|
467 | 2f28d2ff | Anthony Liguori | }; |
468 | 2f28d2ff | Anthony Liguori | |
469 | 9970bd88 | Paolo Bonzini | type_interface = type_register_static(&interface_info); |
470 | 2f28d2ff | Anthony Liguori | } |
471 | 2f28d2ff | Anthony Liguori | |
472 | 83f7d43a | Andreas Fรคrber | type_init(register_types) |
473 | 2f28d2ff | Anthony Liguori | |
474 | 2f28d2ff | Anthony Liguori | Object *object_dynamic_cast_assert(Object *obj, const char *typename) |
475 | 2f28d2ff | Anthony Liguori | { |
476 | 2f28d2ff | Anthony Liguori | Object *inst; |
477 | 2f28d2ff | Anthony Liguori | |
478 | 2f28d2ff | Anthony Liguori | inst = object_dynamic_cast(obj, typename); |
479 | 2f28d2ff | Anthony Liguori | |
480 | 2f28d2ff | Anthony Liguori | if (!inst) {
|
481 | 2f28d2ff | Anthony Liguori | fprintf(stderr, "Object %p is not an instance of type %s\n",
|
482 | 2f28d2ff | Anthony Liguori | obj, typename); |
483 | 2f28d2ff | Anthony Liguori | abort(); |
484 | 2f28d2ff | Anthony Liguori | } |
485 | 2f28d2ff | Anthony Liguori | |
486 | 2f28d2ff | Anthony Liguori | return inst;
|
487 | 2f28d2ff | Anthony Liguori | } |
488 | 2f28d2ff | Anthony Liguori | |
489 | 2f28d2ff | Anthony Liguori | ObjectClass *object_class_dynamic_cast(ObjectClass *class, |
490 | 2f28d2ff | Anthony Liguori | const char *typename) |
491 | 2f28d2ff | Anthony Liguori | { |
492 | 2f28d2ff | Anthony Liguori | TypeImpl *target_type = type_get_by_name(typename); |
493 | 2f28d2ff | Anthony Liguori | TypeImpl *type = class->type; |
494 | 2f28d2ff | Anthony Liguori | |
495 | 2f28d2ff | Anthony Liguori | while (type) {
|
496 | 2f28d2ff | Anthony Liguori | if (type == target_type) {
|
497 | 2f28d2ff | Anthony Liguori | return class;
|
498 | 2f28d2ff | Anthony Liguori | } |
499 | 2f28d2ff | Anthony Liguori | |
500 | 2f28d2ff | Anthony Liguori | type = type_get_parent(type); |
501 | 2f28d2ff | Anthony Liguori | } |
502 | 2f28d2ff | Anthony Liguori | |
503 | 2f28d2ff | Anthony Liguori | return NULL; |
504 | 2f28d2ff | Anthony Liguori | } |
505 | 2f28d2ff | Anthony Liguori | |
506 | 2f28d2ff | Anthony Liguori | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, |
507 | 2f28d2ff | Anthony Liguori | const char *typename) |
508 | 2f28d2ff | Anthony Liguori | { |
509 | 2f28d2ff | Anthony Liguori | ObjectClass *ret = object_class_dynamic_cast(class, typename); |
510 | 2f28d2ff | Anthony Liguori | |
511 | 2f28d2ff | Anthony Liguori | if (!ret) {
|
512 | 2f28d2ff | Anthony Liguori | fprintf(stderr, "Object %p is not an instance of type %s\n",
|
513 | 2f28d2ff | Anthony Liguori | class, typename); |
514 | 2f28d2ff | Anthony Liguori | abort(); |
515 | 2f28d2ff | Anthony Liguori | } |
516 | 2f28d2ff | Anthony Liguori | |
517 | 2f28d2ff | Anthony Liguori | return ret;
|
518 | 2f28d2ff | Anthony Liguori | } |
519 | 2f28d2ff | Anthony Liguori | |
520 | 2f28d2ff | Anthony Liguori | const char *object_get_typename(Object *obj) |
521 | 2f28d2ff | Anthony Liguori | { |
522 | 2f28d2ff | Anthony Liguori | return obj->class->type->name;
|
523 | 2f28d2ff | Anthony Liguori | } |
524 | 2f28d2ff | Anthony Liguori | |
525 | 2f28d2ff | Anthony Liguori | ObjectClass *object_get_class(Object *obj) |
526 | 2f28d2ff | Anthony Liguori | { |
527 | 2f28d2ff | Anthony Liguori | return obj->class;
|
528 | 2f28d2ff | Anthony Liguori | } |
529 | 2f28d2ff | Anthony Liguori | |
530 | 2f28d2ff | Anthony Liguori | const char *object_class_get_name(ObjectClass *klass) |
531 | 2f28d2ff | Anthony Liguori | { |
532 | 2f28d2ff | Anthony Liguori | return klass->type->name;
|
533 | 2f28d2ff | Anthony Liguori | } |
534 | 2f28d2ff | Anthony Liguori | |
535 | 2f28d2ff | Anthony Liguori | ObjectClass *object_class_by_name(const char *typename) |
536 | 2f28d2ff | Anthony Liguori | { |
537 | 2f28d2ff | Anthony Liguori | TypeImpl *type = type_get_by_name(typename); |
538 | 2f28d2ff | Anthony Liguori | |
539 | 2f28d2ff | Anthony Liguori | if (!type) {
|
540 | 2f28d2ff | Anthony Liguori | return NULL; |
541 | 2f28d2ff | Anthony Liguori | } |
542 | 2f28d2ff | Anthony Liguori | |
543 | 2f28d2ff | Anthony Liguori | type_class_init(type); |
544 | 2f28d2ff | Anthony Liguori | |
545 | 2f28d2ff | Anthony Liguori | return type->class;
|
546 | 2f28d2ff | Anthony Liguori | } |
547 | 2f28d2ff | Anthony Liguori | |
548 | 2f28d2ff | Anthony Liguori | typedef struct OCFData |
549 | 2f28d2ff | Anthony Liguori | { |
550 | 2f28d2ff | Anthony Liguori | void (*fn)(ObjectClass *klass, void *opaque); |
551 | 93c511a1 | Anthony Liguori | const char *implements_type; |
552 | 93c511a1 | Anthony Liguori | bool include_abstract;
|
553 | 2f28d2ff | Anthony Liguori | void *opaque;
|
554 | 2f28d2ff | Anthony Liguori | } OCFData; |
555 | 2f28d2ff | Anthony Liguori | |
556 | 2f28d2ff | Anthony Liguori | static void object_class_foreach_tramp(gpointer key, gpointer value, |
557 | 2f28d2ff | Anthony Liguori | gpointer opaque) |
558 | 2f28d2ff | Anthony Liguori | { |
559 | 2f28d2ff | Anthony Liguori | OCFData *data = opaque; |
560 | 2f28d2ff | Anthony Liguori | TypeImpl *type = value; |
561 | 93c511a1 | Anthony Liguori | ObjectClass *k; |
562 | 2f28d2ff | Anthony Liguori | |
563 | 2f28d2ff | Anthony Liguori | type_class_init(type); |
564 | 93c511a1 | Anthony Liguori | k = type->class; |
565 | 2f28d2ff | Anthony Liguori | |
566 | 93c511a1 | Anthony Liguori | if (!data->include_abstract && type->abstract) {
|
567 | 93c511a1 | Anthony Liguori | return;
|
568 | 93c511a1 | Anthony Liguori | } |
569 | 93c511a1 | Anthony Liguori | |
570 | 93c511a1 | Anthony Liguori | if (data->implements_type &&
|
571 | 93c511a1 | Anthony Liguori | !object_class_dynamic_cast(k, data->implements_type)) { |
572 | 93c511a1 | Anthony Liguori | return;
|
573 | 93c511a1 | Anthony Liguori | } |
574 | 93c511a1 | Anthony Liguori | |
575 | 93c511a1 | Anthony Liguori | data->fn(k, data->opaque); |
576 | 2f28d2ff | Anthony Liguori | } |
577 | 2f28d2ff | Anthony Liguori | |
578 | 2f28d2ff | Anthony Liguori | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), |
579 | 93c511a1 | Anthony Liguori | const char *implements_type, bool include_abstract, |
580 | 2f28d2ff | Anthony Liguori | void *opaque)
|
581 | 2f28d2ff | Anthony Liguori | { |
582 | 93c511a1 | Anthony Liguori | OCFData data = { fn, implements_type, include_abstract, opaque }; |
583 | 2f28d2ff | Anthony Liguori | |
584 | 2f28d2ff | Anthony Liguori | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
585 | 2f28d2ff | Anthony Liguori | } |
586 | 57c9fafe | Anthony Liguori | |
587 | 57c9fafe | Anthony Liguori | void object_ref(Object *obj)
|
588 | 57c9fafe | Anthony Liguori | { |
589 | 57c9fafe | Anthony Liguori | obj->ref++; |
590 | 57c9fafe | Anthony Liguori | } |
591 | 57c9fafe | Anthony Liguori | |
592 | 57c9fafe | Anthony Liguori | void object_unref(Object *obj)
|
593 | 57c9fafe | Anthony Liguori | { |
594 | 57c9fafe | Anthony Liguori | g_assert(obj->ref > 0);
|
595 | 57c9fafe | Anthony Liguori | obj->ref--; |
596 | 57c9fafe | Anthony Liguori | |
597 | 57c9fafe | Anthony Liguori | /* parent always holds a reference to its children */
|
598 | 57c9fafe | Anthony Liguori | if (obj->ref == 0) { |
599 | 57c9fafe | Anthony Liguori | object_finalize(obj); |
600 | 57c9fafe | Anthony Liguori | } |
601 | 57c9fafe | Anthony Liguori | } |
602 | 57c9fafe | Anthony Liguori | |
603 | 57c9fafe | Anthony Liguori | void object_property_add(Object *obj, const char *name, const char *type, |
604 | 57c9fafe | Anthony Liguori | ObjectPropertyAccessor *get, |
605 | 57c9fafe | Anthony Liguori | ObjectPropertyAccessor *set, |
606 | 57c9fafe | Anthony Liguori | ObjectPropertyRelease *release, |
607 | 57c9fafe | Anthony Liguori | void *opaque, Error **errp)
|
608 | 57c9fafe | Anthony Liguori | { |
609 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = g_malloc0(sizeof(*prop));
|
610 | 57c9fafe | Anthony Liguori | |
611 | 57c9fafe | Anthony Liguori | prop->name = g_strdup(name); |
612 | 57c9fafe | Anthony Liguori | prop->type = g_strdup(type); |
613 | 57c9fafe | Anthony Liguori | |
614 | 57c9fafe | Anthony Liguori | prop->get = get; |
615 | 57c9fafe | Anthony Liguori | prop->set = set; |
616 | 57c9fafe | Anthony Liguori | prop->release = release; |
617 | 57c9fafe | Anthony Liguori | prop->opaque = opaque; |
618 | 57c9fafe | Anthony Liguori | |
619 | 57c9fafe | Anthony Liguori | QTAILQ_INSERT_TAIL(&obj->properties, prop, node); |
620 | 57c9fafe | Anthony Liguori | } |
621 | 57c9fafe | Anthony Liguori | |
622 | 57c9fafe | Anthony Liguori | static ObjectProperty *object_property_find(Object *obj, const char *name) |
623 | 57c9fafe | Anthony Liguori | { |
624 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
625 | 57c9fafe | Anthony Liguori | |
626 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &obj->properties, node) { |
627 | 57c9fafe | Anthony Liguori | if (strcmp(prop->name, name) == 0) { |
628 | 57c9fafe | Anthony Liguori | return prop;
|
629 | 57c9fafe | Anthony Liguori | } |
630 | 57c9fafe | Anthony Liguori | } |
631 | 57c9fafe | Anthony Liguori | |
632 | 57c9fafe | Anthony Liguori | return NULL; |
633 | 57c9fafe | Anthony Liguori | } |
634 | 57c9fafe | Anthony Liguori | |
635 | 57c9fafe | Anthony Liguori | void object_property_del(Object *obj, const char *name, Error **errp) |
636 | 57c9fafe | Anthony Liguori | { |
637 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
638 | 57c9fafe | Anthony Liguori | |
639 | 57c9fafe | Anthony Liguori | QTAILQ_REMOVE(&obj->properties, prop, node); |
640 | 57c9fafe | Anthony Liguori | |
641 | 57c9fafe | Anthony Liguori | prop->release(obj, prop->name, prop->opaque); |
642 | 57c9fafe | Anthony Liguori | |
643 | 57c9fafe | Anthony Liguori | g_free(prop->name); |
644 | 57c9fafe | Anthony Liguori | g_free(prop->type); |
645 | 57c9fafe | Anthony Liguori | g_free(prop); |
646 | 57c9fafe | Anthony Liguori | } |
647 | 57c9fafe | Anthony Liguori | |
648 | 57c9fafe | Anthony Liguori | void object_property_get(Object *obj, Visitor *v, const char *name, |
649 | 57c9fafe | Anthony Liguori | Error **errp) |
650 | 57c9fafe | Anthony Liguori | { |
651 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
652 | 57c9fafe | Anthony Liguori | |
653 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
654 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PROPERTY_NOT_FOUND, "", name);
|
655 | 57c9fafe | Anthony Liguori | return;
|
656 | 57c9fafe | Anthony Liguori | } |
657 | 57c9fafe | Anthony Liguori | |
658 | 57c9fafe | Anthony Liguori | if (!prop->get) {
|
659 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PERMISSION_DENIED); |
660 | 57c9fafe | Anthony Liguori | } else {
|
661 | 57c9fafe | Anthony Liguori | prop->get(obj, v, prop->opaque, name, errp); |
662 | 57c9fafe | Anthony Liguori | } |
663 | 57c9fafe | Anthony Liguori | } |
664 | 57c9fafe | Anthony Liguori | |
665 | 57c9fafe | Anthony Liguori | void object_property_set(Object *obj, Visitor *v, const char *name, |
666 | 57c9fafe | Anthony Liguori | Error **errp) |
667 | 57c9fafe | Anthony Liguori | { |
668 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
669 | 57c9fafe | Anthony Liguori | |
670 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
671 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PROPERTY_NOT_FOUND, "", name);
|
672 | 57c9fafe | Anthony Liguori | return;
|
673 | 57c9fafe | Anthony Liguori | } |
674 | 57c9fafe | Anthony Liguori | |
675 | 57c9fafe | Anthony Liguori | if (!prop->set) {
|
676 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PERMISSION_DENIED); |
677 | 57c9fafe | Anthony Liguori | } else {
|
678 | 57c9fafe | Anthony Liguori | prop->set(obj, v, prop->opaque, name, errp); |
679 | 57c9fafe | Anthony Liguori | } |
680 | 57c9fafe | Anthony Liguori | } |
681 | 57c9fafe | Anthony Liguori | |
682 | 7b7b7d18 | Paolo Bonzini | void object_property_set_str(Object *obj, const char *value, |
683 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
684 | 7b7b7d18 | Paolo Bonzini | { |
685 | 7b7b7d18 | Paolo Bonzini | QString *qstr = qstring_from_str(value); |
686 | 7b7b7d18 | Paolo Bonzini | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); |
687 | 7b7b7d18 | Paolo Bonzini | |
688 | 7b7b7d18 | Paolo Bonzini | QDECREF(qstr); |
689 | 7b7b7d18 | Paolo Bonzini | } |
690 | 7b7b7d18 | Paolo Bonzini | |
691 | 7b7b7d18 | Paolo Bonzini | char *object_property_get_str(Object *obj, const char *name, |
692 | 7b7b7d18 | Paolo Bonzini | Error **errp) |
693 | 7b7b7d18 | Paolo Bonzini | { |
694 | 7b7b7d18 | Paolo Bonzini | QObject *ret = object_property_get_qobject(obj, name, errp); |
695 | 7b7b7d18 | Paolo Bonzini | QString *qstring; |
696 | 7b7b7d18 | Paolo Bonzini | char *retval;
|
697 | 7b7b7d18 | Paolo Bonzini | |
698 | 7b7b7d18 | Paolo Bonzini | if (!ret) {
|
699 | 7b7b7d18 | Paolo Bonzini | return NULL; |
700 | 7b7b7d18 | Paolo Bonzini | } |
701 | 7b7b7d18 | Paolo Bonzini | qstring = qobject_to_qstring(ret); |
702 | 7b7b7d18 | Paolo Bonzini | if (!qstring) {
|
703 | 7b7b7d18 | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "string");
|
704 | 7b7b7d18 | Paolo Bonzini | retval = NULL;
|
705 | 7b7b7d18 | Paolo Bonzini | } else {
|
706 | 7b7b7d18 | Paolo Bonzini | retval = g_strdup(qstring_get_str(qstring)); |
707 | 7b7b7d18 | Paolo Bonzini | } |
708 | 7b7b7d18 | Paolo Bonzini | |
709 | 7b7b7d18 | Paolo Bonzini | QDECREF(qstring); |
710 | 7b7b7d18 | Paolo Bonzini | return retval;
|
711 | 7b7b7d18 | Paolo Bonzini | } |
712 | 7b7b7d18 | Paolo Bonzini | |
713 | 1d9c5a12 | Paolo Bonzini | void object_property_set_link(Object *obj, Object *value,
|
714 | 1d9c5a12 | Paolo Bonzini | const char *name, Error **errp) |
715 | 1d9c5a12 | Paolo Bonzini | { |
716 | 1d9c5a12 | Paolo Bonzini | object_property_set_str(obj, object_get_canonical_path(value), |
717 | 1d9c5a12 | Paolo Bonzini | name, errp); |
718 | 1d9c5a12 | Paolo Bonzini | } |
719 | 1d9c5a12 | Paolo Bonzini | |
720 | 1d9c5a12 | Paolo Bonzini | Object *object_property_get_link(Object *obj, const char *name, |
721 | 1d9c5a12 | Paolo Bonzini | Error **errp) |
722 | 1d9c5a12 | Paolo Bonzini | { |
723 | 1d9c5a12 | Paolo Bonzini | char *str = object_property_get_str(obj, name, errp);
|
724 | 1d9c5a12 | Paolo Bonzini | Object *target = NULL;
|
725 | 1d9c5a12 | Paolo Bonzini | |
726 | 1d9c5a12 | Paolo Bonzini | if (str && *str) {
|
727 | 1d9c5a12 | Paolo Bonzini | target = object_resolve_path(str, NULL);
|
728 | 1d9c5a12 | Paolo Bonzini | if (!target) {
|
729 | 1d9c5a12 | Paolo Bonzini | error_set(errp, QERR_DEVICE_NOT_FOUND, str); |
730 | 1d9c5a12 | Paolo Bonzini | } |
731 | 1d9c5a12 | Paolo Bonzini | } |
732 | 1d9c5a12 | Paolo Bonzini | |
733 | 1d9c5a12 | Paolo Bonzini | g_free(str); |
734 | 1d9c5a12 | Paolo Bonzini | return target;
|
735 | 1d9c5a12 | Paolo Bonzini | } |
736 | 1d9c5a12 | Paolo Bonzini | |
737 | 7b7b7d18 | Paolo Bonzini | void object_property_set_bool(Object *obj, bool value, |
738 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
739 | 7b7b7d18 | Paolo Bonzini | { |
740 | 7b7b7d18 | Paolo Bonzini | QBool *qbool = qbool_from_int(value); |
741 | 7b7b7d18 | Paolo Bonzini | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
742 | 7b7b7d18 | Paolo Bonzini | |
743 | 7b7b7d18 | Paolo Bonzini | QDECREF(qbool); |
744 | 7b7b7d18 | Paolo Bonzini | } |
745 | 7b7b7d18 | Paolo Bonzini | |
746 | 7b7b7d18 | Paolo Bonzini | bool object_property_get_bool(Object *obj, const char *name, |
747 | 7b7b7d18 | Paolo Bonzini | Error **errp) |
748 | 7b7b7d18 | Paolo Bonzini | { |
749 | 7b7b7d18 | Paolo Bonzini | QObject *ret = object_property_get_qobject(obj, name, errp); |
750 | 7b7b7d18 | Paolo Bonzini | QBool *qbool; |
751 | 7b7b7d18 | Paolo Bonzini | bool retval;
|
752 | 7b7b7d18 | Paolo Bonzini | |
753 | 7b7b7d18 | Paolo Bonzini | if (!ret) {
|
754 | 7b7b7d18 | Paolo Bonzini | return false; |
755 | 7b7b7d18 | Paolo Bonzini | } |
756 | 7b7b7d18 | Paolo Bonzini | qbool = qobject_to_qbool(ret); |
757 | 7b7b7d18 | Paolo Bonzini | if (!qbool) {
|
758 | 7b7b7d18 | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean");
|
759 | 7b7b7d18 | Paolo Bonzini | retval = false;
|
760 | 7b7b7d18 | Paolo Bonzini | } else {
|
761 | 7b7b7d18 | Paolo Bonzini | retval = qbool_get_int(qbool); |
762 | 7b7b7d18 | Paolo Bonzini | } |
763 | 7b7b7d18 | Paolo Bonzini | |
764 | 7b7b7d18 | Paolo Bonzini | QDECREF(qbool); |
765 | 7b7b7d18 | Paolo Bonzini | return retval;
|
766 | 7b7b7d18 | Paolo Bonzini | } |
767 | 7b7b7d18 | Paolo Bonzini | |
768 | 7b7b7d18 | Paolo Bonzini | void object_property_set_int(Object *obj, int64_t value,
|
769 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
770 | 7b7b7d18 | Paolo Bonzini | { |
771 | 7b7b7d18 | Paolo Bonzini | QInt *qint = qint_from_int(value); |
772 | 7b7b7d18 | Paolo Bonzini | object_property_set_qobject(obj, QOBJECT(qint), name, errp); |
773 | 7b7b7d18 | Paolo Bonzini | |
774 | 7b7b7d18 | Paolo Bonzini | QDECREF(qint); |
775 | 7b7b7d18 | Paolo Bonzini | } |
776 | 7b7b7d18 | Paolo Bonzini | |
777 | 7b7b7d18 | Paolo Bonzini | int64_t object_property_get_int(Object *obj, const char *name, |
778 | 7b7b7d18 | Paolo Bonzini | Error **errp) |
779 | 7b7b7d18 | Paolo Bonzini | { |
780 | 7b7b7d18 | Paolo Bonzini | QObject *ret = object_property_get_qobject(obj, name, errp); |
781 | 7b7b7d18 | Paolo Bonzini | QInt *qint; |
782 | 7b7b7d18 | Paolo Bonzini | int64_t retval; |
783 | 7b7b7d18 | Paolo Bonzini | |
784 | 7b7b7d18 | Paolo Bonzini | if (!ret) {
|
785 | 7b7b7d18 | Paolo Bonzini | return -1; |
786 | 7b7b7d18 | Paolo Bonzini | } |
787 | 7b7b7d18 | Paolo Bonzini | qint = qobject_to_qint(ret); |
788 | 7b7b7d18 | Paolo Bonzini | if (!qint) {
|
789 | 7b7b7d18 | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "int");
|
790 | 7b7b7d18 | Paolo Bonzini | retval = -1;
|
791 | 7b7b7d18 | Paolo Bonzini | } else {
|
792 | 7b7b7d18 | Paolo Bonzini | retval = qint_get_int(qint); |
793 | 7b7b7d18 | Paolo Bonzini | } |
794 | 7b7b7d18 | Paolo Bonzini | |
795 | 7b7b7d18 | Paolo Bonzini | QDECREF(qint); |
796 | 7b7b7d18 | Paolo Bonzini | return retval;
|
797 | b2cd7dee | Paolo Bonzini | } |
798 | b2cd7dee | Paolo Bonzini | |
799 | b2cd7dee | Paolo Bonzini | void object_property_parse(Object *obj, const char *string, |
800 | b2cd7dee | Paolo Bonzini | const char *name, Error **errp) |
801 | b2cd7dee | Paolo Bonzini | { |
802 | b2cd7dee | Paolo Bonzini | StringInputVisitor *mi; |
803 | b2cd7dee | Paolo Bonzini | mi = string_input_visitor_new(string); |
804 | b2cd7dee | Paolo Bonzini | object_property_set(obj, string_input_get_visitor(mi), name, errp); |
805 | b2cd7dee | Paolo Bonzini | |
806 | b2cd7dee | Paolo Bonzini | string_input_visitor_cleanup(mi); |
807 | b2cd7dee | Paolo Bonzini | } |
808 | b2cd7dee | Paolo Bonzini | |
809 | b2cd7dee | Paolo Bonzini | char *object_property_print(Object *obj, const char *name, |
810 | b2cd7dee | Paolo Bonzini | Error **errp) |
811 | b2cd7dee | Paolo Bonzini | { |
812 | b2cd7dee | Paolo Bonzini | StringOutputVisitor *mo; |
813 | b2cd7dee | Paolo Bonzini | char *string;
|
814 | b2cd7dee | Paolo Bonzini | |
815 | b2cd7dee | Paolo Bonzini | mo = string_output_visitor_new(); |
816 | b2cd7dee | Paolo Bonzini | object_property_get(obj, string_output_get_visitor(mo), name, NULL);
|
817 | b2cd7dee | Paolo Bonzini | string = string_output_get_string(mo); |
818 | b2cd7dee | Paolo Bonzini | string_output_visitor_cleanup(mo); |
819 | b2cd7dee | Paolo Bonzini | return string;
|
820 | 7b7b7d18 | Paolo Bonzini | } |
821 | 7b7b7d18 | Paolo Bonzini | |
822 | 57c9fafe | Anthony Liguori | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
823 | 57c9fafe | Anthony Liguori | { |
824 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
825 | 57c9fafe | Anthony Liguori | |
826 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
827 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PROPERTY_NOT_FOUND, "", name);
|
828 | 57c9fafe | Anthony Liguori | return NULL; |
829 | 57c9fafe | Anthony Liguori | } |
830 | 57c9fafe | Anthony Liguori | |
831 | 57c9fafe | Anthony Liguori | return prop->type;
|
832 | 57c9fafe | Anthony Liguori | } |
833 | 57c9fafe | Anthony Liguori | |
834 | 57c9fafe | Anthony Liguori | Object *object_get_root(void)
|
835 | 57c9fafe | Anthony Liguori | { |
836 | 8b45d447 | Anthony Liguori | static Object *root;
|
837 | 57c9fafe | Anthony Liguori | |
838 | 8b45d447 | Anthony Liguori | if (!root) {
|
839 | 8b45d447 | Anthony Liguori | root = object_new("container");
|
840 | 57c9fafe | Anthony Liguori | } |
841 | 57c9fafe | Anthony Liguori | |
842 | 8b45d447 | Anthony Liguori | return root;
|
843 | 57c9fafe | Anthony Liguori | } |
844 | 57c9fafe | Anthony Liguori | |
845 | 57c9fafe | Anthony Liguori | static void object_get_child_property(Object *obj, Visitor *v, void *opaque, |
846 | 57c9fafe | Anthony Liguori | const char *name, Error **errp) |
847 | 57c9fafe | Anthony Liguori | { |
848 | 57c9fafe | Anthony Liguori | Object *child = opaque; |
849 | 57c9fafe | Anthony Liguori | gchar *path; |
850 | 57c9fafe | Anthony Liguori | |
851 | 57c9fafe | Anthony Liguori | path = object_get_canonical_path(child); |
852 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
853 | 57c9fafe | Anthony Liguori | g_free(path); |
854 | 57c9fafe | Anthony Liguori | } |
855 | 57c9fafe | Anthony Liguori | |
856 | db85b575 | Anthony Liguori | static void object_finalize_child_property(Object *obj, const char *name, |
857 | db85b575 | Anthony Liguori | void *opaque)
|
858 | db85b575 | Anthony Liguori | { |
859 | db85b575 | Anthony Liguori | Object *child = opaque; |
860 | db85b575 | Anthony Liguori | |
861 | db85b575 | Anthony Liguori | object_unref(child); |
862 | db85b575 | Anthony Liguori | } |
863 | db85b575 | Anthony Liguori | |
864 | 57c9fafe | Anthony Liguori | void object_property_add_child(Object *obj, const char *name, |
865 | 57c9fafe | Anthony Liguori | Object *child, Error **errp) |
866 | 57c9fafe | Anthony Liguori | { |
867 | 57c9fafe | Anthony Liguori | gchar *type; |
868 | 57c9fafe | Anthony Liguori | |
869 | a1e7efdc | Paolo Bonzini | /* Registering an interface object in the composition tree will mightily
|
870 | a1e7efdc | Paolo Bonzini | * confuse object_get_canonical_path (which, on the other hand, knows how
|
871 | a1e7efdc | Paolo Bonzini | * to get the canonical path of an interface object).
|
872 | a1e7efdc | Paolo Bonzini | */
|
873 | a1e7efdc | Paolo Bonzini | assert(!object_is_type(obj, type_interface)); |
874 | a1e7efdc | Paolo Bonzini | |
875 | 57c9fafe | Anthony Liguori | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child)));
|
876 | 57c9fafe | Anthony Liguori | |
877 | 57c9fafe | Anthony Liguori | object_property_add(obj, name, type, object_get_child_property, |
878 | db85b575 | Anthony Liguori | NULL, object_finalize_child_property, child, errp);
|
879 | 57c9fafe | Anthony Liguori | |
880 | 57c9fafe | Anthony Liguori | object_ref(child); |
881 | 57c9fafe | Anthony Liguori | g_assert(child->parent == NULL);
|
882 | 57c9fafe | Anthony Liguori | child->parent = obj; |
883 | 57c9fafe | Anthony Liguori | |
884 | 57c9fafe | Anthony Liguori | g_free(type); |
885 | 57c9fafe | Anthony Liguori | } |
886 | 57c9fafe | Anthony Liguori | |
887 | 57c9fafe | Anthony Liguori | static void object_get_link_property(Object *obj, Visitor *v, void *opaque, |
888 | 57c9fafe | Anthony Liguori | const char *name, Error **errp) |
889 | 57c9fafe | Anthony Liguori | { |
890 | 57c9fafe | Anthony Liguori | Object **child = opaque; |
891 | 57c9fafe | Anthony Liguori | gchar *path; |
892 | 57c9fafe | Anthony Liguori | |
893 | 57c9fafe | Anthony Liguori | if (*child) {
|
894 | 57c9fafe | Anthony Liguori | path = object_get_canonical_path(*child); |
895 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
896 | 57c9fafe | Anthony Liguori | g_free(path); |
897 | 57c9fafe | Anthony Liguori | } else {
|
898 | 57c9fafe | Anthony Liguori | path = (gchar *)"";
|
899 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
900 | 57c9fafe | Anthony Liguori | } |
901 | 57c9fafe | Anthony Liguori | } |
902 | 57c9fafe | Anthony Liguori | |
903 | 57c9fafe | Anthony Liguori | static void object_set_link_property(Object *obj, Visitor *v, void *opaque, |
904 | 57c9fafe | Anthony Liguori | const char *name, Error **errp) |
905 | 57c9fafe | Anthony Liguori | { |
906 | 57c9fafe | Anthony Liguori | Object **child = opaque; |
907 | f0cdc966 | Alexander Barabash | Object *old_target; |
908 | 57c9fafe | Anthony Liguori | bool ambiguous = false; |
909 | 57c9fafe | Anthony Liguori | const char *type; |
910 | 57c9fafe | Anthony Liguori | char *path;
|
911 | 11e35bfd | Paolo Bonzini | gchar *target_type; |
912 | 57c9fafe | Anthony Liguori | |
913 | 57c9fafe | Anthony Liguori | type = object_property_get_type(obj, name, NULL);
|
914 | 57c9fafe | Anthony Liguori | |
915 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
916 | 57c9fafe | Anthony Liguori | |
917 | f0cdc966 | Alexander Barabash | old_target = *child; |
918 | f0cdc966 | Alexander Barabash | *child = NULL;
|
919 | 57c9fafe | Anthony Liguori | |
920 | 57c9fafe | Anthony Liguori | if (strcmp(path, "") != 0) { |
921 | 57c9fafe | Anthony Liguori | Object *target; |
922 | 57c9fafe | Anthony Liguori | |
923 | 11e35bfd | Paolo Bonzini | /* Go from link<FOO> to FOO. */
|
924 | 11e35bfd | Paolo Bonzini | target_type = g_strndup(&type[5], strlen(type) - 6); |
925 | 11e35bfd | Paolo Bonzini | target = object_resolve_path_type(path, target_type, &ambiguous); |
926 | 57c9fafe | Anthony Liguori | |
927 | 11e35bfd | Paolo Bonzini | if (ambiguous) {
|
928 | 11e35bfd | Paolo Bonzini | error_set(errp, QERR_AMBIGUOUS_PATH, path); |
929 | 11e35bfd | Paolo Bonzini | } else if (target) { |
930 | 11e35bfd | Paolo Bonzini | object_ref(target); |
931 | 11e35bfd | Paolo Bonzini | *child = target; |
932 | 57c9fafe | Anthony Liguori | } else {
|
933 | 11e35bfd | Paolo Bonzini | target = object_resolve_path(path, &ambiguous); |
934 | 11e35bfd | Paolo Bonzini | if (target || ambiguous) {
|
935 | 11e35bfd | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
936 | 11e35bfd | Paolo Bonzini | } else {
|
937 | 11e35bfd | Paolo Bonzini | error_set(errp, QERR_DEVICE_NOT_FOUND, path); |
938 | 11e35bfd | Paolo Bonzini | } |
939 | 57c9fafe | Anthony Liguori | } |
940 | 11e35bfd | Paolo Bonzini | g_free(target_type); |
941 | 57c9fafe | Anthony Liguori | } |
942 | 57c9fafe | Anthony Liguori | |
943 | 57c9fafe | Anthony Liguori | g_free(path); |
944 | f0cdc966 | Alexander Barabash | |
945 | f0cdc966 | Alexander Barabash | if (old_target != NULL) { |
946 | f0cdc966 | Alexander Barabash | object_unref(old_target); |
947 | f0cdc966 | Alexander Barabash | } |
948 | 57c9fafe | Anthony Liguori | } |
949 | 57c9fafe | Anthony Liguori | |
950 | 57c9fafe | Anthony Liguori | void object_property_add_link(Object *obj, const char *name, |
951 | 57c9fafe | Anthony Liguori | const char *type, Object **child, |
952 | 57c9fafe | Anthony Liguori | Error **errp) |
953 | 57c9fafe | Anthony Liguori | { |
954 | 57c9fafe | Anthony Liguori | gchar *full_type; |
955 | 57c9fafe | Anthony Liguori | |
956 | 57c9fafe | Anthony Liguori | full_type = g_strdup_printf("link<%s>", type);
|
957 | 57c9fafe | Anthony Liguori | |
958 | 57c9fafe | Anthony Liguori | object_property_add(obj, name, full_type, |
959 | 57c9fafe | Anthony Liguori | object_get_link_property, |
960 | 57c9fafe | Anthony Liguori | object_set_link_property, |
961 | 57c9fafe | Anthony Liguori | NULL, child, errp);
|
962 | 57c9fafe | Anthony Liguori | |
963 | 57c9fafe | Anthony Liguori | g_free(full_type); |
964 | 57c9fafe | Anthony Liguori | } |
965 | 57c9fafe | Anthony Liguori | |
966 | 57c9fafe | Anthony Liguori | gchar *object_get_canonical_path(Object *obj) |
967 | 57c9fafe | Anthony Liguori | { |
968 | 57c9fafe | Anthony Liguori | Object *root = object_get_root(); |
969 | 57c9fafe | Anthony Liguori | char *newpath = NULL, *path = NULL; |
970 | 57c9fafe | Anthony Liguori | |
971 | a1e7efdc | Paolo Bonzini | if (object_is_type(obj, type_interface)) {
|
972 | a1e7efdc | Paolo Bonzini | obj = INTERFACE(obj)->obj; |
973 | a1e7efdc | Paolo Bonzini | } |
974 | a1e7efdc | Paolo Bonzini | |
975 | 57c9fafe | Anthony Liguori | while (obj != root) {
|
976 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = NULL;
|
977 | 57c9fafe | Anthony Liguori | |
978 | 57c9fafe | Anthony Liguori | g_assert(obj->parent != NULL);
|
979 | 57c9fafe | Anthony Liguori | |
980 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &obj->parent->properties, node) { |
981 | 57c9fafe | Anthony Liguori | if (!strstart(prop->type, "child<", NULL)) { |
982 | 57c9fafe | Anthony Liguori | continue;
|
983 | 57c9fafe | Anthony Liguori | } |
984 | 57c9fafe | Anthony Liguori | |
985 | 57c9fafe | Anthony Liguori | if (prop->opaque == obj) {
|
986 | 57c9fafe | Anthony Liguori | if (path) {
|
987 | 57c9fafe | Anthony Liguori | newpath = g_strdup_printf("%s/%s", prop->name, path);
|
988 | 57c9fafe | Anthony Liguori | g_free(path); |
989 | 57c9fafe | Anthony Liguori | path = newpath; |
990 | 57c9fafe | Anthony Liguori | } else {
|
991 | 57c9fafe | Anthony Liguori | path = g_strdup(prop->name); |
992 | 57c9fafe | Anthony Liguori | } |
993 | 57c9fafe | Anthony Liguori | break;
|
994 | 57c9fafe | Anthony Liguori | } |
995 | 57c9fafe | Anthony Liguori | } |
996 | 57c9fafe | Anthony Liguori | |
997 | 57c9fafe | Anthony Liguori | g_assert(prop != NULL);
|
998 | 57c9fafe | Anthony Liguori | |
999 | 57c9fafe | Anthony Liguori | obj = obj->parent; |
1000 | 57c9fafe | Anthony Liguori | } |
1001 | 57c9fafe | Anthony Liguori | |
1002 | 57c9fafe | Anthony Liguori | newpath = g_strdup_printf("/%s", path);
|
1003 | 57c9fafe | Anthony Liguori | g_free(path); |
1004 | 57c9fafe | Anthony Liguori | |
1005 | 57c9fafe | Anthony Liguori | return newpath;
|
1006 | 57c9fafe | Anthony Liguori | } |
1007 | 57c9fafe | Anthony Liguori | |
1008 | 57c9fafe | Anthony Liguori | static Object *object_resolve_abs_path(Object *parent,
|
1009 | 57c9fafe | Anthony Liguori | gchar **parts, |
1010 | 02fe2db6 | Paolo Bonzini | const char *typename, |
1011 | 57c9fafe | Anthony Liguori | int index)
|
1012 | 57c9fafe | Anthony Liguori | { |
1013 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
1014 | 57c9fafe | Anthony Liguori | Object *child; |
1015 | 57c9fafe | Anthony Liguori | |
1016 | 57c9fafe | Anthony Liguori | if (parts[index] == NULL) { |
1017 | 02fe2db6 | Paolo Bonzini | return object_dynamic_cast(parent, typename);
|
1018 | 57c9fafe | Anthony Liguori | } |
1019 | 57c9fafe | Anthony Liguori | |
1020 | 57c9fafe | Anthony Liguori | if (strcmp(parts[index], "") == 0) { |
1021 | 02fe2db6 | Paolo Bonzini | return object_resolve_abs_path(parent, parts, typename, index + 1); |
1022 | 57c9fafe | Anthony Liguori | } |
1023 | 57c9fafe | Anthony Liguori | |
1024 | 57c9fafe | Anthony Liguori | prop = object_property_find(parent, parts[index]); |
1025 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
1026 | 57c9fafe | Anthony Liguori | return NULL; |
1027 | 57c9fafe | Anthony Liguori | } |
1028 | 57c9fafe | Anthony Liguori | |
1029 | 57c9fafe | Anthony Liguori | child = NULL;
|
1030 | 57c9fafe | Anthony Liguori | if (strstart(prop->type, "link<", NULL)) { |
1031 | 57c9fafe | Anthony Liguori | Object **pchild = prop->opaque; |
1032 | 57c9fafe | Anthony Liguori | if (*pchild) {
|
1033 | 57c9fafe | Anthony Liguori | child = *pchild; |
1034 | 57c9fafe | Anthony Liguori | } |
1035 | 57c9fafe | Anthony Liguori | } else if (strstart(prop->type, "child<", NULL)) { |
1036 | 57c9fafe | Anthony Liguori | child = prop->opaque; |
1037 | 57c9fafe | Anthony Liguori | } |
1038 | 57c9fafe | Anthony Liguori | |
1039 | 57c9fafe | Anthony Liguori | if (!child) {
|
1040 | 57c9fafe | Anthony Liguori | return NULL; |
1041 | 57c9fafe | Anthony Liguori | } |
1042 | 57c9fafe | Anthony Liguori | |
1043 | 02fe2db6 | Paolo Bonzini | return object_resolve_abs_path(child, parts, typename, index + 1); |
1044 | 57c9fafe | Anthony Liguori | } |
1045 | 57c9fafe | Anthony Liguori | |
1046 | 57c9fafe | Anthony Liguori | static Object *object_resolve_partial_path(Object *parent,
|
1047 | 57c9fafe | Anthony Liguori | gchar **parts, |
1048 | 02fe2db6 | Paolo Bonzini | const char *typename, |
1049 | 57c9fafe | Anthony Liguori | bool *ambiguous)
|
1050 | 57c9fafe | Anthony Liguori | { |
1051 | 57c9fafe | Anthony Liguori | Object *obj; |
1052 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
1053 | 57c9fafe | Anthony Liguori | |
1054 | 02fe2db6 | Paolo Bonzini | obj = object_resolve_abs_path(parent, parts, typename, 0);
|
1055 | 57c9fafe | Anthony Liguori | |
1056 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &parent->properties, node) { |
1057 | 57c9fafe | Anthony Liguori | Object *found; |
1058 | 57c9fafe | Anthony Liguori | |
1059 | 57c9fafe | Anthony Liguori | if (!strstart(prop->type, "child<", NULL)) { |
1060 | 57c9fafe | Anthony Liguori | continue;
|
1061 | 57c9fafe | Anthony Liguori | } |
1062 | 57c9fafe | Anthony Liguori | |
1063 | 02fe2db6 | Paolo Bonzini | found = object_resolve_partial_path(prop->opaque, parts, |
1064 | 02fe2db6 | Paolo Bonzini | typename, ambiguous); |
1065 | 57c9fafe | Anthony Liguori | if (found) {
|
1066 | 57c9fafe | Anthony Liguori | if (obj) {
|
1067 | 57c9fafe | Anthony Liguori | if (ambiguous) {
|
1068 | 57c9fafe | Anthony Liguori | *ambiguous = true;
|
1069 | 57c9fafe | Anthony Liguori | } |
1070 | 57c9fafe | Anthony Liguori | return NULL; |
1071 | 57c9fafe | Anthony Liguori | } |
1072 | 57c9fafe | Anthony Liguori | obj = found; |
1073 | 57c9fafe | Anthony Liguori | } |
1074 | 57c9fafe | Anthony Liguori | |
1075 | 57c9fafe | Anthony Liguori | if (ambiguous && *ambiguous) {
|
1076 | 57c9fafe | Anthony Liguori | return NULL; |
1077 | 57c9fafe | Anthony Liguori | } |
1078 | 57c9fafe | Anthony Liguori | } |
1079 | 57c9fafe | Anthony Liguori | |
1080 | 57c9fafe | Anthony Liguori | return obj;
|
1081 | 57c9fafe | Anthony Liguori | } |
1082 | 57c9fafe | Anthony Liguori | |
1083 | 02fe2db6 | Paolo Bonzini | Object *object_resolve_path_type(const char *path, const char *typename, |
1084 | 02fe2db6 | Paolo Bonzini | bool *ambiguous)
|
1085 | 57c9fafe | Anthony Liguori | { |
1086 | 57c9fafe | Anthony Liguori | bool partial_path = true; |
1087 | 57c9fafe | Anthony Liguori | Object *obj; |
1088 | 57c9fafe | Anthony Liguori | gchar **parts; |
1089 | 57c9fafe | Anthony Liguori | |
1090 | 57c9fafe | Anthony Liguori | parts = g_strsplit(path, "/", 0); |
1091 | 57c9fafe | Anthony Liguori | if (parts == NULL || parts[0] == NULL) { |
1092 | 57c9fafe | Anthony Liguori | g_strfreev(parts); |
1093 | 57c9fafe | Anthony Liguori | return object_get_root();
|
1094 | 57c9fafe | Anthony Liguori | } |
1095 | 57c9fafe | Anthony Liguori | |
1096 | 57c9fafe | Anthony Liguori | if (strcmp(parts[0], "") == 0) { |
1097 | 57c9fafe | Anthony Liguori | partial_path = false;
|
1098 | 57c9fafe | Anthony Liguori | } |
1099 | 57c9fafe | Anthony Liguori | |
1100 | 57c9fafe | Anthony Liguori | if (partial_path) {
|
1101 | 57c9fafe | Anthony Liguori | if (ambiguous) {
|
1102 | 57c9fafe | Anthony Liguori | *ambiguous = false;
|
1103 | 57c9fafe | Anthony Liguori | } |
1104 | 02fe2db6 | Paolo Bonzini | obj = object_resolve_partial_path(object_get_root(), parts, |
1105 | 02fe2db6 | Paolo Bonzini | typename, ambiguous); |
1106 | 57c9fafe | Anthony Liguori | } else {
|
1107 | 02fe2db6 | Paolo Bonzini | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1);
|
1108 | 57c9fafe | Anthony Liguori | } |
1109 | 57c9fafe | Anthony Liguori | |
1110 | 57c9fafe | Anthony Liguori | g_strfreev(parts); |
1111 | 57c9fafe | Anthony Liguori | |
1112 | 57c9fafe | Anthony Liguori | return obj;
|
1113 | 57c9fafe | Anthony Liguori | } |
1114 | 57c9fafe | Anthony Liguori | |
1115 | 02fe2db6 | Paolo Bonzini | Object *object_resolve_path(const char *path, bool *ambiguous) |
1116 | 02fe2db6 | Paolo Bonzini | { |
1117 | 02fe2db6 | Paolo Bonzini | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous);
|
1118 | 02fe2db6 | Paolo Bonzini | } |
1119 | 02fe2db6 | Paolo Bonzini | |
1120 | 57c9fafe | Anthony Liguori | typedef struct StringProperty |
1121 | 57c9fafe | Anthony Liguori | { |
1122 | 57c9fafe | Anthony Liguori | char *(*get)(Object *, Error **);
|
1123 | 57c9fafe | Anthony Liguori | void (*set)(Object *, const char *, Error **); |
1124 | 57c9fafe | Anthony Liguori | } StringProperty; |
1125 | 57c9fafe | Anthony Liguori | |
1126 | 7b7b7d18 | Paolo Bonzini | static void property_get_str(Object *obj, Visitor *v, void *opaque, |
1127 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
1128 | 57c9fafe | Anthony Liguori | { |
1129 | 57c9fafe | Anthony Liguori | StringProperty *prop = opaque; |
1130 | 57c9fafe | Anthony Liguori | char *value;
|
1131 | 57c9fafe | Anthony Liguori | |
1132 | 57c9fafe | Anthony Liguori | value = prop->get(obj, errp); |
1133 | 57c9fafe | Anthony Liguori | if (value) {
|
1134 | 57c9fafe | Anthony Liguori | visit_type_str(v, &value, name, errp); |
1135 | 57c9fafe | Anthony Liguori | g_free(value); |
1136 | 57c9fafe | Anthony Liguori | } |
1137 | 57c9fafe | Anthony Liguori | } |
1138 | 57c9fafe | Anthony Liguori | |
1139 | 7b7b7d18 | Paolo Bonzini | static void property_set_str(Object *obj, Visitor *v, void *opaque, |
1140 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
1141 | 57c9fafe | Anthony Liguori | { |
1142 | 57c9fafe | Anthony Liguori | StringProperty *prop = opaque; |
1143 | 57c9fafe | Anthony Liguori | char *value;
|
1144 | 57c9fafe | Anthony Liguori | Error *local_err = NULL;
|
1145 | 57c9fafe | Anthony Liguori | |
1146 | 57c9fafe | Anthony Liguori | visit_type_str(v, &value, name, &local_err); |
1147 | 57c9fafe | Anthony Liguori | if (local_err) {
|
1148 | 57c9fafe | Anthony Liguori | error_propagate(errp, local_err); |
1149 | 57c9fafe | Anthony Liguori | return;
|
1150 | 57c9fafe | Anthony Liguori | } |
1151 | 57c9fafe | Anthony Liguori | |
1152 | 57c9fafe | Anthony Liguori | prop->set(obj, value, errp); |
1153 | 57c9fafe | Anthony Liguori | g_free(value); |
1154 | 57c9fafe | Anthony Liguori | } |
1155 | 57c9fafe | Anthony Liguori | |
1156 | 7b7b7d18 | Paolo Bonzini | static void property_release_str(Object *obj, const char *name, |
1157 | 7b7b7d18 | Paolo Bonzini | void *opaque)
|
1158 | 57c9fafe | Anthony Liguori | { |
1159 | 57c9fafe | Anthony Liguori | StringProperty *prop = opaque; |
1160 | 57c9fafe | Anthony Liguori | g_free(prop); |
1161 | 57c9fafe | Anthony Liguori | } |
1162 | 57c9fafe | Anthony Liguori | |
1163 | 57c9fafe | Anthony Liguori | void object_property_add_str(Object *obj, const char *name, |
1164 | 57c9fafe | Anthony Liguori | char *(*get)(Object *, Error **),
|
1165 | 57c9fafe | Anthony Liguori | void (*set)(Object *, const char *, Error **), |
1166 | 57c9fafe | Anthony Liguori | Error **errp) |
1167 | 57c9fafe | Anthony Liguori | { |
1168 | 57c9fafe | Anthony Liguori | StringProperty *prop = g_malloc0(sizeof(*prop));
|
1169 | 57c9fafe | Anthony Liguori | |
1170 | 57c9fafe | Anthony Liguori | prop->get = get; |
1171 | 57c9fafe | Anthony Liguori | prop->set = set; |
1172 | 57c9fafe | Anthony Liguori | |
1173 | 57c9fafe | Anthony Liguori | object_property_add(obj, name, "string",
|
1174 | 7b7b7d18 | Paolo Bonzini | get ? property_get_str : NULL,
|
1175 | 7b7b7d18 | Paolo Bonzini | set ? property_set_str : NULL,
|
1176 | 7b7b7d18 | Paolo Bonzini | property_release_str, |
1177 | 57c9fafe | Anthony Liguori | prop, errp); |
1178 | 57c9fafe | Anthony Liguori | } |