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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 | 2f28d2ff | Anthony Liguori | static void type_class_interface_init(TypeImpl *ti, InterfaceImpl *iface) |
181 | 2f28d2ff | Anthony Liguori | { |
182 | 2f28d2ff | Anthony Liguori | TypeInfo info = { |
183 | 2f28d2ff | Anthony Liguori | .instance_size = sizeof(Interface),
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184 | 2f28d2ff | Anthony Liguori | .parent = iface->parent, |
185 | 2f28d2ff | Anthony Liguori | .class_size = sizeof(InterfaceClass),
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186 | 2f28d2ff | Anthony Liguori | .class_init = iface->interface_initfn, |
187 | 2f28d2ff | Anthony Liguori | .abstract = true,
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188 | 2f28d2ff | Anthony Liguori | }; |
189 | 2f28d2ff | Anthony Liguori | char *name = g_strdup_printf("<%s::%s>", ti->name, iface->parent); |
190 | 2f28d2ff | Anthony Liguori | |
191 | 2f28d2ff | Anthony Liguori | info.name = name; |
192 | 2f28d2ff | Anthony Liguori | iface->type = type_register(&info); |
193 | 2f28d2ff | Anthony Liguori | g_free(name); |
194 | 2f28d2ff | Anthony Liguori | } |
195 | 2f28d2ff | Anthony Liguori | |
196 | 2f28d2ff | Anthony Liguori | static void type_class_init(TypeImpl *ti) |
197 | 2f28d2ff | Anthony Liguori | { |
198 | 2f28d2ff | Anthony Liguori | size_t class_size = sizeof(ObjectClass);
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199 | 2f28d2ff | Anthony Liguori | int i;
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200 | 2f28d2ff | Anthony Liguori | |
201 | 2f28d2ff | Anthony Liguori | if (ti->class) {
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202 | 2f28d2ff | Anthony Liguori | return;
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203 | 2f28d2ff | Anthony Liguori | } |
204 | 2f28d2ff | Anthony Liguori | |
205 | 2f28d2ff | Anthony Liguori | ti->class_size = type_class_get_size(ti); |
206 | 2f28d2ff | Anthony Liguori | |
207 | 2f28d2ff | Anthony Liguori | ti->class = g_malloc0(ti->class_size); |
208 | 2f28d2ff | Anthony Liguori | ti->class->type = ti; |
209 | 2f28d2ff | Anthony Liguori | |
210 | 2f28d2ff | Anthony Liguori | if (type_has_parent(ti)) {
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211 | 2f28d2ff | Anthony Liguori | TypeImpl *parent = type_get_parent(ti); |
212 | 2f28d2ff | Anthony Liguori | |
213 | 2f28d2ff | Anthony Liguori | type_class_init(parent); |
214 | 2f28d2ff | Anthony Liguori | |
215 | 2f28d2ff | Anthony Liguori | class_size = parent->class_size; |
216 | 2f28d2ff | Anthony Liguori | g_assert(parent->class_size <= ti->class_size); |
217 | 2f28d2ff | Anthony Liguori | |
218 | 2f28d2ff | Anthony Liguori | memcpy((void *)ti->class + sizeof(ObjectClass), |
219 | 2f28d2ff | Anthony Liguori | (void *)parent->class + sizeof(ObjectClass), |
220 | 2f28d2ff | Anthony Liguori | parent->class_size - sizeof(ObjectClass));
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221 | 2f28d2ff | Anthony Liguori | } |
222 | 2f28d2ff | Anthony Liguori | |
223 | 2f28d2ff | Anthony Liguori | memset((void *)ti->class + class_size, 0, ti->class_size - class_size); |
224 | 2f28d2ff | Anthony Liguori | |
225 | 2f28d2ff | Anthony Liguori | for (i = 0; i < ti->num_interfaces; i++) { |
226 | 2f28d2ff | Anthony Liguori | type_class_interface_init(ti, &ti->interfaces[i]); |
227 | 2f28d2ff | Anthony Liguori | } |
228 | 2f28d2ff | Anthony Liguori | |
229 | 2f28d2ff | Anthony Liguori | if (ti->class_init) {
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230 | 2f28d2ff | Anthony Liguori | ti->class_init(ti->class, ti->class_data); |
231 | 2f28d2ff | Anthony Liguori | } |
232 | 2f28d2ff | Anthony Liguori | } |
233 | 2f28d2ff | Anthony Liguori | |
234 | 2f28d2ff | Anthony Liguori | static void object_interface_init(Object *obj, InterfaceImpl *iface) |
235 | 2f28d2ff | Anthony Liguori | { |
236 | 2f28d2ff | Anthony Liguori | TypeImpl *ti = iface->type; |
237 | 2f28d2ff | Anthony Liguori | Interface *iface_obj; |
238 | 2f28d2ff | Anthony Liguori | |
239 | 2f28d2ff | Anthony Liguori | iface_obj = INTERFACE(object_new(ti->name)); |
240 | 2f28d2ff | Anthony Liguori | iface_obj->obj = obj; |
241 | 2f28d2ff | Anthony Liguori | |
242 | 2f28d2ff | Anthony Liguori | obj->interfaces = g_slist_prepend(obj->interfaces, iface_obj); |
243 | 2f28d2ff | Anthony Liguori | } |
244 | 2f28d2ff | Anthony Liguori | |
245 | 2f28d2ff | Anthony Liguori | static void object_init_with_type(Object *obj, TypeImpl *ti) |
246 | 2f28d2ff | Anthony Liguori | { |
247 | 2f28d2ff | Anthony Liguori | int i;
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248 | 2f28d2ff | Anthony Liguori | |
249 | 2f28d2ff | Anthony Liguori | if (type_has_parent(ti)) {
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250 | 2f28d2ff | Anthony Liguori | object_init_with_type(obj, type_get_parent(ti)); |
251 | 2f28d2ff | Anthony Liguori | } |
252 | 2f28d2ff | Anthony Liguori | |
253 | 2f28d2ff | Anthony Liguori | for (i = 0; i < ti->num_interfaces; i++) { |
254 | 2f28d2ff | Anthony Liguori | object_interface_init(obj, &ti->interfaces[i]); |
255 | 2f28d2ff | Anthony Liguori | } |
256 | 2f28d2ff | Anthony Liguori | |
257 | 2f28d2ff | Anthony Liguori | if (ti->instance_init) {
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258 | 2f28d2ff | Anthony Liguori | ti->instance_init(obj); |
259 | 2f28d2ff | Anthony Liguori | } |
260 | 2f28d2ff | Anthony Liguori | } |
261 | 2f28d2ff | Anthony Liguori | |
262 | 2f28d2ff | Anthony Liguori | void object_initialize_with_type(void *data, TypeImpl *type) |
263 | 2f28d2ff | Anthony Liguori | { |
264 | 2f28d2ff | Anthony Liguori | Object *obj = data; |
265 | 2f28d2ff | Anthony Liguori | |
266 | 2f28d2ff | Anthony Liguori | g_assert(type != NULL);
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267 | 258b2c42 | Andreas Fรคrber | g_assert(type->instance_size >= sizeof(Object));
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268 | 2f28d2ff | Anthony Liguori | |
269 | 2f28d2ff | Anthony Liguori | type_class_init(type); |
270 | 2f28d2ff | Anthony Liguori | g_assert(type->abstract == false);
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271 | 2f28d2ff | Anthony Liguori | |
272 | 2f28d2ff | Anthony Liguori | memset(obj, 0, type->instance_size);
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273 | 2f28d2ff | Anthony Liguori | obj->class = type->class; |
274 | 57c9fafe | Anthony Liguori | QTAILQ_INIT(&obj->properties); |
275 | 2f28d2ff | Anthony Liguori | object_init_with_type(obj, type); |
276 | 2f28d2ff | Anthony Liguori | } |
277 | 2f28d2ff | Anthony Liguori | |
278 | 2f28d2ff | Anthony Liguori | void object_initialize(void *data, const char *typename) |
279 | 2f28d2ff | Anthony Liguori | { |
280 | 2f28d2ff | Anthony Liguori | TypeImpl *type = type_get_by_name(typename); |
281 | 2f28d2ff | Anthony Liguori | |
282 | 2f28d2ff | Anthony Liguori | object_initialize_with_type(data, type); |
283 | 2f28d2ff | Anthony Liguori | } |
284 | 2f28d2ff | Anthony Liguori | |
285 | 57c9fafe | Anthony Liguori | static void object_property_del_all(Object *obj) |
286 | 57c9fafe | Anthony Liguori | { |
287 | 57c9fafe | Anthony Liguori | while (!QTAILQ_EMPTY(&obj->properties)) {
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288 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = QTAILQ_FIRST(&obj->properties); |
289 | 57c9fafe | Anthony Liguori | |
290 | 57c9fafe | Anthony Liguori | QTAILQ_REMOVE(&obj->properties, prop, node); |
291 | 57c9fafe | Anthony Liguori | |
292 | 57c9fafe | Anthony Liguori | if (prop->release) {
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293 | 57c9fafe | Anthony Liguori | prop->release(obj, prop->name, prop->opaque); |
294 | 57c9fafe | Anthony Liguori | } |
295 | 57c9fafe | Anthony Liguori | |
296 | 57c9fafe | Anthony Liguori | g_free(prop->name); |
297 | 57c9fafe | Anthony Liguori | g_free(prop->type); |
298 | 57c9fafe | Anthony Liguori | g_free(prop); |
299 | 57c9fafe | Anthony Liguori | } |
300 | 57c9fafe | Anthony Liguori | } |
301 | 57c9fafe | Anthony Liguori | |
302 | 57c9fafe | Anthony Liguori | static void object_property_del_child(Object *obj, Object *child, Error **errp) |
303 | 57c9fafe | Anthony Liguori | { |
304 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
305 | 57c9fafe | Anthony Liguori | |
306 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &obj->properties, node) { |
307 | 57c9fafe | Anthony Liguori | if (!strstart(prop->type, "child<", NULL)) { |
308 | 57c9fafe | Anthony Liguori | continue;
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309 | 57c9fafe | Anthony Liguori | } |
310 | 57c9fafe | Anthony Liguori | |
311 | 57c9fafe | Anthony Liguori | if (prop->opaque == child) {
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312 | 57c9fafe | Anthony Liguori | object_property_del(obj, prop->name, errp); |
313 | 57c9fafe | Anthony Liguori | } |
314 | 57c9fafe | Anthony Liguori | } |
315 | 57c9fafe | Anthony Liguori | } |
316 | 57c9fafe | Anthony Liguori | |
317 | 57c9fafe | Anthony Liguori | void object_unparent(Object *obj)
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318 | 57c9fafe | Anthony Liguori | { |
319 | 57c9fafe | Anthony Liguori | if (obj->parent) {
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320 | 57c9fafe | Anthony Liguori | object_property_del_child(obj->parent, obj, NULL);
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321 | 57c9fafe | Anthony Liguori | } |
322 | 57c9fafe | Anthony Liguori | } |
323 | 57c9fafe | Anthony Liguori | |
324 | 2f28d2ff | Anthony Liguori | static void object_deinit(Object *obj, TypeImpl *type) |
325 | 2f28d2ff | Anthony Liguori | { |
326 | 2f28d2ff | Anthony Liguori | if (type->instance_finalize) {
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327 | 2f28d2ff | Anthony Liguori | type->instance_finalize(obj); |
328 | 2f28d2ff | Anthony Liguori | } |
329 | 2f28d2ff | Anthony Liguori | |
330 | 2f28d2ff | Anthony Liguori | while (obj->interfaces) {
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331 | 2f28d2ff | Anthony Liguori | Interface *iface_obj = obj->interfaces->data; |
332 | 2f28d2ff | Anthony Liguori | obj->interfaces = g_slist_delete_link(obj->interfaces, obj->interfaces); |
333 | 2f28d2ff | Anthony Liguori | object_delete(OBJECT(iface_obj)); |
334 | 2f28d2ff | Anthony Liguori | } |
335 | 2f28d2ff | Anthony Liguori | |
336 | 2f28d2ff | Anthony Liguori | if (type_has_parent(type)) {
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337 | 2f28d2ff | Anthony Liguori | object_deinit(obj, type_get_parent(type)); |
338 | 2f28d2ff | Anthony Liguori | } |
339 | 57c9fafe | Anthony Liguori | |
340 | 57c9fafe | Anthony Liguori | object_unparent(obj); |
341 | 2f28d2ff | Anthony Liguori | } |
342 | 2f28d2ff | Anthony Liguori | |
343 | 2f28d2ff | Anthony Liguori | void object_finalize(void *data) |
344 | 2f28d2ff | Anthony Liguori | { |
345 | 2f28d2ff | Anthony Liguori | Object *obj = data; |
346 | 2f28d2ff | Anthony Liguori | TypeImpl *ti = obj->class->type; |
347 | 2f28d2ff | Anthony Liguori | |
348 | 2f28d2ff | Anthony Liguori | object_deinit(obj, ti); |
349 | 57c9fafe | Anthony Liguori | object_property_del_all(obj); |
350 | db85b575 | Anthony Liguori | |
351 | db85b575 | Anthony Liguori | g_assert(obj->ref == 0);
|
352 | 2f28d2ff | Anthony Liguori | } |
353 | 2f28d2ff | Anthony Liguori | |
354 | 2f28d2ff | Anthony Liguori | Object *object_new_with_type(Type type) |
355 | 2f28d2ff | Anthony Liguori | { |
356 | 2f28d2ff | Anthony Liguori | Object *obj; |
357 | 2f28d2ff | Anthony Liguori | |
358 | 2f28d2ff | Anthony Liguori | g_assert(type != NULL);
|
359 | 2f28d2ff | Anthony Liguori | |
360 | 2f28d2ff | Anthony Liguori | obj = g_malloc(type->instance_size); |
361 | 2f28d2ff | Anthony Liguori | object_initialize_with_type(obj, type); |
362 | db85b575 | Anthony Liguori | object_ref(obj); |
363 | 2f28d2ff | Anthony Liguori | |
364 | 2f28d2ff | Anthony Liguori | return obj;
|
365 | 2f28d2ff | Anthony Liguori | } |
366 | 2f28d2ff | Anthony Liguori | |
367 | 2f28d2ff | Anthony Liguori | Object *object_new(const char *typename) |
368 | 2f28d2ff | Anthony Liguori | { |
369 | 2f28d2ff | Anthony Liguori | TypeImpl *ti = type_get_by_name(typename); |
370 | 2f28d2ff | Anthony Liguori | |
371 | 2f28d2ff | Anthony Liguori | return object_new_with_type(ti);
|
372 | 2f28d2ff | Anthony Liguori | } |
373 | 2f28d2ff | Anthony Liguori | |
374 | 2f28d2ff | Anthony Liguori | void object_delete(Object *obj)
|
375 | 2f28d2ff | Anthony Liguori | { |
376 | db85b575 | Anthony Liguori | object_unref(obj); |
377 | db85b575 | Anthony Liguori | g_assert(obj->ref == 0);
|
378 | 2f28d2ff | Anthony Liguori | g_free(obj); |
379 | 2f28d2ff | Anthony Liguori | } |
380 | 2f28d2ff | Anthony Liguori | |
381 | acc4af3f | Paolo Bonzini | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
382 | 2f28d2ff | Anthony Liguori | { |
383 | acc4af3f | Paolo Bonzini | assert(target_type); |
384 | 2f28d2ff | Anthony Liguori | |
385 | 2f28d2ff | Anthony Liguori | /* Check if typename is a direct ancestor of type */
|
386 | 2f28d2ff | Anthony Liguori | while (type) {
|
387 | 2f28d2ff | Anthony Liguori | if (type == target_type) {
|
388 | 2f28d2ff | Anthony Liguori | return true; |
389 | 2f28d2ff | Anthony Liguori | } |
390 | 2f28d2ff | Anthony Liguori | |
391 | 2f28d2ff | Anthony Liguori | type = type_get_parent(type); |
392 | 2f28d2ff | Anthony Liguori | } |
393 | 2f28d2ff | Anthony Liguori | |
394 | acc4af3f | Paolo Bonzini | return false; |
395 | acc4af3f | Paolo Bonzini | } |
396 | 2f28d2ff | Anthony Liguori | |
397 | 9970bd88 | Paolo Bonzini | static bool object_is_type(Object *obj, TypeImpl *target_type) |
398 | acc4af3f | Paolo Bonzini | { |
399 | 9970bd88 | Paolo Bonzini | return !target_type || type_is_ancestor(obj->class->type, target_type);
|
400 | 2f28d2ff | Anthony Liguori | } |
401 | 2f28d2ff | Anthony Liguori | |
402 | 2f28d2ff | Anthony Liguori | Object *object_dynamic_cast(Object *obj, const char *typename) |
403 | 2f28d2ff | Anthony Liguori | { |
404 | 9970bd88 | Paolo Bonzini | TypeImpl *target_type = type_get_by_name(typename); |
405 | 2f28d2ff | Anthony Liguori | GSList *i; |
406 | 2f28d2ff | Anthony Liguori | |
407 | acc4af3f | Paolo Bonzini | /* Check if typename is a direct ancestor. Special-case TYPE_OBJECT,
|
408 | acc4af3f | Paolo Bonzini | * we want to go back from interfaces to the parent.
|
409 | acc4af3f | Paolo Bonzini | */
|
410 | 9970bd88 | Paolo Bonzini | if (target_type && object_is_type(obj, target_type)) {
|
411 | acc4af3f | Paolo Bonzini | return obj;
|
412 | acc4af3f | Paolo Bonzini | } |
413 | acc4af3f | Paolo Bonzini | |
414 | acc4af3f | Paolo Bonzini | /* Check if obj is an interface and its containing object is a direct
|
415 | acc4af3f | Paolo Bonzini | * ancestor of typename. In principle we could do this test at the very
|
416 | acc4af3f | Paolo Bonzini | * beginning of object_dynamic_cast, avoiding a second call to
|
417 | acc4af3f | Paolo Bonzini | * object_is_type. However, casting between interfaces is relatively
|
418 | 9970bd88 | Paolo Bonzini | * rare, and object_is_type(obj, type_interface) would fail almost always.
|
419 | acc4af3f | Paolo Bonzini | *
|
420 | acc4af3f | Paolo Bonzini | * Perhaps we could add a magic value to the object header for increased
|
421 | acc4af3f | Paolo Bonzini | * (run-time) type safety and to speed up tests like this one. If we ever
|
422 | acc4af3f | Paolo Bonzini | * do that we can revisit the order here.
|
423 | acc4af3f | Paolo Bonzini | */
|
424 | 9970bd88 | Paolo Bonzini | if (object_is_type(obj, type_interface)) {
|
425 | acc4af3f | Paolo Bonzini | assert(!obj->interfaces); |
426 | acc4af3f | Paolo Bonzini | obj = INTERFACE(obj)->obj; |
427 | 9970bd88 | Paolo Bonzini | if (object_is_type(obj, target_type)) {
|
428 | acc4af3f | Paolo Bonzini | return obj;
|
429 | acc4af3f | Paolo Bonzini | } |
430 | acc4af3f | Paolo Bonzini | } |
431 | acc4af3f | Paolo Bonzini | |
432 | 9970bd88 | Paolo Bonzini | if (!target_type) {
|
433 | 2f28d2ff | Anthony Liguori | return obj;
|
434 | 2f28d2ff | Anthony Liguori | } |
435 | 2f28d2ff | Anthony Liguori | |
436 | 2f28d2ff | Anthony Liguori | /* Check if obj has an interface of typename */
|
437 | 2f28d2ff | Anthony Liguori | for (i = obj->interfaces; i; i = i->next) {
|
438 | 2f28d2ff | Anthony Liguori | Interface *iface = i->data; |
439 | 2f28d2ff | Anthony Liguori | |
440 | 9970bd88 | Paolo Bonzini | if (object_is_type(OBJECT(iface), target_type)) {
|
441 | 2f28d2ff | Anthony Liguori | return OBJECT(iface);
|
442 | 2f28d2ff | Anthony Liguori | } |
443 | 2f28d2ff | Anthony Liguori | } |
444 | 2f28d2ff | Anthony Liguori | |
445 | 2f28d2ff | Anthony Liguori | return NULL; |
446 | 2f28d2ff | Anthony Liguori | } |
447 | 2f28d2ff | Anthony Liguori | |
448 | 2f28d2ff | Anthony Liguori | |
449 | 83f7d43a | Andreas Fรคrber | static void register_types(void) |
450 | 2f28d2ff | Anthony Liguori | { |
451 | 2f28d2ff | Anthony Liguori | static TypeInfo interface_info = {
|
452 | 2f28d2ff | Anthony Liguori | .name = TYPE_INTERFACE, |
453 | 2f28d2ff | Anthony Liguori | .instance_size = sizeof(Interface),
|
454 | 2f28d2ff | Anthony Liguori | .abstract = true,
|
455 | 2f28d2ff | Anthony Liguori | }; |
456 | 2f28d2ff | Anthony Liguori | |
457 | 9970bd88 | Paolo Bonzini | type_interface = type_register_static(&interface_info); |
458 | 2f28d2ff | Anthony Liguori | } |
459 | 2f28d2ff | Anthony Liguori | |
460 | 83f7d43a | Andreas Fรคrber | type_init(register_types) |
461 | 2f28d2ff | Anthony Liguori | |
462 | 2f28d2ff | Anthony Liguori | Object *object_dynamic_cast_assert(Object *obj, const char *typename) |
463 | 2f28d2ff | Anthony Liguori | { |
464 | 2f28d2ff | Anthony Liguori | Object *inst; |
465 | 2f28d2ff | Anthony Liguori | |
466 | 2f28d2ff | Anthony Liguori | inst = object_dynamic_cast(obj, typename); |
467 | 2f28d2ff | Anthony Liguori | |
468 | 2f28d2ff | Anthony Liguori | if (!inst) {
|
469 | 2f28d2ff | Anthony Liguori | fprintf(stderr, "Object %p is not an instance of type %s\n",
|
470 | 2f28d2ff | Anthony Liguori | obj, typename); |
471 | 2f28d2ff | Anthony Liguori | abort(); |
472 | 2f28d2ff | Anthony Liguori | } |
473 | 2f28d2ff | Anthony Liguori | |
474 | 2f28d2ff | Anthony Liguori | return inst;
|
475 | 2f28d2ff | Anthony Liguori | } |
476 | 2f28d2ff | Anthony Liguori | |
477 | 2f28d2ff | Anthony Liguori | ObjectClass *object_class_dynamic_cast(ObjectClass *class, |
478 | 2f28d2ff | Anthony Liguori | const char *typename) |
479 | 2f28d2ff | Anthony Liguori | { |
480 | 2f28d2ff | Anthony Liguori | TypeImpl *target_type = type_get_by_name(typename); |
481 | 2f28d2ff | Anthony Liguori | TypeImpl *type = class->type; |
482 | 2f28d2ff | Anthony Liguori | |
483 | 2f28d2ff | Anthony Liguori | while (type) {
|
484 | 2f28d2ff | Anthony Liguori | if (type == target_type) {
|
485 | 2f28d2ff | Anthony Liguori | return class;
|
486 | 2f28d2ff | Anthony Liguori | } |
487 | 2f28d2ff | Anthony Liguori | |
488 | 2f28d2ff | Anthony Liguori | type = type_get_parent(type); |
489 | 2f28d2ff | Anthony Liguori | } |
490 | 2f28d2ff | Anthony Liguori | |
491 | 2f28d2ff | Anthony Liguori | return NULL; |
492 | 2f28d2ff | Anthony Liguori | } |
493 | 2f28d2ff | Anthony Liguori | |
494 | 2f28d2ff | Anthony Liguori | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, |
495 | 2f28d2ff | Anthony Liguori | const char *typename) |
496 | 2f28d2ff | Anthony Liguori | { |
497 | 2f28d2ff | Anthony Liguori | ObjectClass *ret = object_class_dynamic_cast(class, typename); |
498 | 2f28d2ff | Anthony Liguori | |
499 | 2f28d2ff | Anthony Liguori | if (!ret) {
|
500 | 2f28d2ff | Anthony Liguori | fprintf(stderr, "Object %p is not an instance of type %s\n",
|
501 | 2f28d2ff | Anthony Liguori | class, typename); |
502 | 2f28d2ff | Anthony Liguori | abort(); |
503 | 2f28d2ff | Anthony Liguori | } |
504 | 2f28d2ff | Anthony Liguori | |
505 | 2f28d2ff | Anthony Liguori | return ret;
|
506 | 2f28d2ff | Anthony Liguori | } |
507 | 2f28d2ff | Anthony Liguori | |
508 | 2f28d2ff | Anthony Liguori | const char *object_get_typename(Object *obj) |
509 | 2f28d2ff | Anthony Liguori | { |
510 | 2f28d2ff | Anthony Liguori | return obj->class->type->name;
|
511 | 2f28d2ff | Anthony Liguori | } |
512 | 2f28d2ff | Anthony Liguori | |
513 | 2f28d2ff | Anthony Liguori | ObjectClass *object_get_class(Object *obj) |
514 | 2f28d2ff | Anthony Liguori | { |
515 | 2f28d2ff | Anthony Liguori | return obj->class;
|
516 | 2f28d2ff | Anthony Liguori | } |
517 | 2f28d2ff | Anthony Liguori | |
518 | 2f28d2ff | Anthony Liguori | const char *object_class_get_name(ObjectClass *klass) |
519 | 2f28d2ff | Anthony Liguori | { |
520 | 2f28d2ff | Anthony Liguori | return klass->type->name;
|
521 | 2f28d2ff | Anthony Liguori | } |
522 | 2f28d2ff | Anthony Liguori | |
523 | 2f28d2ff | Anthony Liguori | ObjectClass *object_class_by_name(const char *typename) |
524 | 2f28d2ff | Anthony Liguori | { |
525 | 2f28d2ff | Anthony Liguori | TypeImpl *type = type_get_by_name(typename); |
526 | 2f28d2ff | Anthony Liguori | |
527 | 2f28d2ff | Anthony Liguori | if (!type) {
|
528 | 2f28d2ff | Anthony Liguori | return NULL; |
529 | 2f28d2ff | Anthony Liguori | } |
530 | 2f28d2ff | Anthony Liguori | |
531 | 2f28d2ff | Anthony Liguori | type_class_init(type); |
532 | 2f28d2ff | Anthony Liguori | |
533 | 2f28d2ff | Anthony Liguori | return type->class;
|
534 | 2f28d2ff | Anthony Liguori | } |
535 | 2f28d2ff | Anthony Liguori | |
536 | 2f28d2ff | Anthony Liguori | typedef struct OCFData |
537 | 2f28d2ff | Anthony Liguori | { |
538 | 2f28d2ff | Anthony Liguori | void (*fn)(ObjectClass *klass, void *opaque); |
539 | 93c511a1 | Anthony Liguori | const char *implements_type; |
540 | 93c511a1 | Anthony Liguori | bool include_abstract;
|
541 | 2f28d2ff | Anthony Liguori | void *opaque;
|
542 | 2f28d2ff | Anthony Liguori | } OCFData; |
543 | 2f28d2ff | Anthony Liguori | |
544 | 2f28d2ff | Anthony Liguori | static void object_class_foreach_tramp(gpointer key, gpointer value, |
545 | 2f28d2ff | Anthony Liguori | gpointer opaque) |
546 | 2f28d2ff | Anthony Liguori | { |
547 | 2f28d2ff | Anthony Liguori | OCFData *data = opaque; |
548 | 2f28d2ff | Anthony Liguori | TypeImpl *type = value; |
549 | 93c511a1 | Anthony Liguori | ObjectClass *k; |
550 | 2f28d2ff | Anthony Liguori | |
551 | 2f28d2ff | Anthony Liguori | type_class_init(type); |
552 | 93c511a1 | Anthony Liguori | k = type->class; |
553 | 2f28d2ff | Anthony Liguori | |
554 | 93c511a1 | Anthony Liguori | if (!data->include_abstract && type->abstract) {
|
555 | 93c511a1 | Anthony Liguori | return;
|
556 | 93c511a1 | Anthony Liguori | } |
557 | 93c511a1 | Anthony Liguori | |
558 | 93c511a1 | Anthony Liguori | if (data->implements_type &&
|
559 | 93c511a1 | Anthony Liguori | !object_class_dynamic_cast(k, data->implements_type)) { |
560 | 93c511a1 | Anthony Liguori | return;
|
561 | 93c511a1 | Anthony Liguori | } |
562 | 93c511a1 | Anthony Liguori | |
563 | 93c511a1 | Anthony Liguori | data->fn(k, data->opaque); |
564 | 2f28d2ff | Anthony Liguori | } |
565 | 2f28d2ff | Anthony Liguori | |
566 | 2f28d2ff | Anthony Liguori | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), |
567 | 93c511a1 | Anthony Liguori | const char *implements_type, bool include_abstract, |
568 | 2f28d2ff | Anthony Liguori | void *opaque)
|
569 | 2f28d2ff | Anthony Liguori | { |
570 | 93c511a1 | Anthony Liguori | OCFData data = { fn, implements_type, include_abstract, opaque }; |
571 | 2f28d2ff | Anthony Liguori | |
572 | 2f28d2ff | Anthony Liguori | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
573 | 2f28d2ff | Anthony Liguori | } |
574 | 57c9fafe | Anthony Liguori | |
575 | 57c9fafe | Anthony Liguori | void object_ref(Object *obj)
|
576 | 57c9fafe | Anthony Liguori | { |
577 | 57c9fafe | Anthony Liguori | obj->ref++; |
578 | 57c9fafe | Anthony Liguori | } |
579 | 57c9fafe | Anthony Liguori | |
580 | 57c9fafe | Anthony Liguori | void object_unref(Object *obj)
|
581 | 57c9fafe | Anthony Liguori | { |
582 | 57c9fafe | Anthony Liguori | g_assert(obj->ref > 0);
|
583 | 57c9fafe | Anthony Liguori | obj->ref--; |
584 | 57c9fafe | Anthony Liguori | |
585 | 57c9fafe | Anthony Liguori | /* parent always holds a reference to its children */
|
586 | 57c9fafe | Anthony Liguori | if (obj->ref == 0) { |
587 | 57c9fafe | Anthony Liguori | object_finalize(obj); |
588 | 57c9fafe | Anthony Liguori | } |
589 | 57c9fafe | Anthony Liguori | } |
590 | 57c9fafe | Anthony Liguori | |
591 | 57c9fafe | Anthony Liguori | void object_property_add(Object *obj, const char *name, const char *type, |
592 | 57c9fafe | Anthony Liguori | ObjectPropertyAccessor *get, |
593 | 57c9fafe | Anthony Liguori | ObjectPropertyAccessor *set, |
594 | 57c9fafe | Anthony Liguori | ObjectPropertyRelease *release, |
595 | 57c9fafe | Anthony Liguori | void *opaque, Error **errp)
|
596 | 57c9fafe | Anthony Liguori | { |
597 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = g_malloc0(sizeof(*prop));
|
598 | 57c9fafe | Anthony Liguori | |
599 | 57c9fafe | Anthony Liguori | prop->name = g_strdup(name); |
600 | 57c9fafe | Anthony Liguori | prop->type = g_strdup(type); |
601 | 57c9fafe | Anthony Liguori | |
602 | 57c9fafe | Anthony Liguori | prop->get = get; |
603 | 57c9fafe | Anthony Liguori | prop->set = set; |
604 | 57c9fafe | Anthony Liguori | prop->release = release; |
605 | 57c9fafe | Anthony Liguori | prop->opaque = opaque; |
606 | 57c9fafe | Anthony Liguori | |
607 | 57c9fafe | Anthony Liguori | QTAILQ_INSERT_TAIL(&obj->properties, prop, node); |
608 | 57c9fafe | Anthony Liguori | } |
609 | 57c9fafe | Anthony Liguori | |
610 | 57c9fafe | Anthony Liguori | static ObjectProperty *object_property_find(Object *obj, const char *name) |
611 | 57c9fafe | Anthony Liguori | { |
612 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
613 | 57c9fafe | Anthony Liguori | |
614 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &obj->properties, node) { |
615 | 57c9fafe | Anthony Liguori | if (strcmp(prop->name, name) == 0) { |
616 | 57c9fafe | Anthony Liguori | return prop;
|
617 | 57c9fafe | Anthony Liguori | } |
618 | 57c9fafe | Anthony Liguori | } |
619 | 57c9fafe | Anthony Liguori | |
620 | 57c9fafe | Anthony Liguori | return NULL; |
621 | 57c9fafe | Anthony Liguori | } |
622 | 57c9fafe | Anthony Liguori | |
623 | 57c9fafe | Anthony Liguori | void object_property_del(Object *obj, const char *name, Error **errp) |
624 | 57c9fafe | Anthony Liguori | { |
625 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
626 | 57c9fafe | Anthony Liguori | |
627 | 57c9fafe | Anthony Liguori | QTAILQ_REMOVE(&obj->properties, prop, node); |
628 | 57c9fafe | Anthony Liguori | |
629 | 57c9fafe | Anthony Liguori | prop->release(obj, prop->name, prop->opaque); |
630 | 57c9fafe | Anthony Liguori | |
631 | 57c9fafe | Anthony Liguori | g_free(prop->name); |
632 | 57c9fafe | Anthony Liguori | g_free(prop->type); |
633 | 57c9fafe | Anthony Liguori | g_free(prop); |
634 | 57c9fafe | Anthony Liguori | } |
635 | 57c9fafe | Anthony Liguori | |
636 | 57c9fafe | Anthony Liguori | void object_property_get(Object *obj, Visitor *v, const char *name, |
637 | 57c9fafe | Anthony Liguori | Error **errp) |
638 | 57c9fafe | Anthony Liguori | { |
639 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
640 | 57c9fafe | Anthony Liguori | |
641 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
642 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PROPERTY_NOT_FOUND, "", name);
|
643 | 57c9fafe | Anthony Liguori | return;
|
644 | 57c9fafe | Anthony Liguori | } |
645 | 57c9fafe | Anthony Liguori | |
646 | 57c9fafe | Anthony Liguori | if (!prop->get) {
|
647 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PERMISSION_DENIED); |
648 | 57c9fafe | Anthony Liguori | } else {
|
649 | 57c9fafe | Anthony Liguori | prop->get(obj, v, prop->opaque, name, errp); |
650 | 57c9fafe | Anthony Liguori | } |
651 | 57c9fafe | Anthony Liguori | } |
652 | 57c9fafe | Anthony Liguori | |
653 | 57c9fafe | Anthony Liguori | void object_property_set(Object *obj, Visitor *v, const char *name, |
654 | 57c9fafe | Anthony Liguori | Error **errp) |
655 | 57c9fafe | Anthony Liguori | { |
656 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
657 | 57c9fafe | Anthony Liguori | |
658 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
659 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PROPERTY_NOT_FOUND, "", name);
|
660 | 57c9fafe | Anthony Liguori | return;
|
661 | 57c9fafe | Anthony Liguori | } |
662 | 57c9fafe | Anthony Liguori | |
663 | 57c9fafe | Anthony Liguori | if (!prop->set) {
|
664 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PERMISSION_DENIED); |
665 | 57c9fafe | Anthony Liguori | } else {
|
666 | 57c9fafe | Anthony Liguori | prop->set(obj, v, prop->opaque, name, errp); |
667 | 57c9fafe | Anthony Liguori | } |
668 | 57c9fafe | Anthony Liguori | } |
669 | 57c9fafe | Anthony Liguori | |
670 | 7b7b7d18 | Paolo Bonzini | void object_property_set_str(Object *obj, const char *value, |
671 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
672 | 7b7b7d18 | Paolo Bonzini | { |
673 | 7b7b7d18 | Paolo Bonzini | QString *qstr = qstring_from_str(value); |
674 | 7b7b7d18 | Paolo Bonzini | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); |
675 | 7b7b7d18 | Paolo Bonzini | |
676 | 7b7b7d18 | Paolo Bonzini | QDECREF(qstr); |
677 | 7b7b7d18 | Paolo Bonzini | } |
678 | 7b7b7d18 | Paolo Bonzini | |
679 | 7b7b7d18 | Paolo Bonzini | char *object_property_get_str(Object *obj, const char *name, |
680 | 7b7b7d18 | Paolo Bonzini | Error **errp) |
681 | 7b7b7d18 | Paolo Bonzini | { |
682 | 7b7b7d18 | Paolo Bonzini | QObject *ret = object_property_get_qobject(obj, name, errp); |
683 | 7b7b7d18 | Paolo Bonzini | QString *qstring; |
684 | 7b7b7d18 | Paolo Bonzini | char *retval;
|
685 | 7b7b7d18 | Paolo Bonzini | |
686 | 7b7b7d18 | Paolo Bonzini | if (!ret) {
|
687 | 7b7b7d18 | Paolo Bonzini | return NULL; |
688 | 7b7b7d18 | Paolo Bonzini | } |
689 | 7b7b7d18 | Paolo Bonzini | qstring = qobject_to_qstring(ret); |
690 | 7b7b7d18 | Paolo Bonzini | if (!qstring) {
|
691 | 7b7b7d18 | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "string");
|
692 | 7b7b7d18 | Paolo Bonzini | retval = NULL;
|
693 | 7b7b7d18 | Paolo Bonzini | } else {
|
694 | 7b7b7d18 | Paolo Bonzini | retval = g_strdup(qstring_get_str(qstring)); |
695 | 7b7b7d18 | Paolo Bonzini | } |
696 | 7b7b7d18 | Paolo Bonzini | |
697 | 7b7b7d18 | Paolo Bonzini | QDECREF(qstring); |
698 | 7b7b7d18 | Paolo Bonzini | return retval;
|
699 | 7b7b7d18 | Paolo Bonzini | } |
700 | 7b7b7d18 | Paolo Bonzini | |
701 | 1d9c5a12 | Paolo Bonzini | void object_property_set_link(Object *obj, Object *value,
|
702 | 1d9c5a12 | Paolo Bonzini | const char *name, Error **errp) |
703 | 1d9c5a12 | Paolo Bonzini | { |
704 | 1d9c5a12 | Paolo Bonzini | object_property_set_str(obj, object_get_canonical_path(value), |
705 | 1d9c5a12 | Paolo Bonzini | name, errp); |
706 | 1d9c5a12 | Paolo Bonzini | } |
707 | 1d9c5a12 | Paolo Bonzini | |
708 | 1d9c5a12 | Paolo Bonzini | Object *object_property_get_link(Object *obj, const char *name, |
709 | 1d9c5a12 | Paolo Bonzini | Error **errp) |
710 | 1d9c5a12 | Paolo Bonzini | { |
711 | 1d9c5a12 | Paolo Bonzini | char *str = object_property_get_str(obj, name, errp);
|
712 | 1d9c5a12 | Paolo Bonzini | Object *target = NULL;
|
713 | 1d9c5a12 | Paolo Bonzini | |
714 | 1d9c5a12 | Paolo Bonzini | if (str && *str) {
|
715 | 1d9c5a12 | Paolo Bonzini | target = object_resolve_path(str, NULL);
|
716 | 1d9c5a12 | Paolo Bonzini | if (!target) {
|
717 | 1d9c5a12 | Paolo Bonzini | error_set(errp, QERR_DEVICE_NOT_FOUND, str); |
718 | 1d9c5a12 | Paolo Bonzini | } |
719 | 1d9c5a12 | Paolo Bonzini | } |
720 | 1d9c5a12 | Paolo Bonzini | |
721 | 1d9c5a12 | Paolo Bonzini | g_free(str); |
722 | 1d9c5a12 | Paolo Bonzini | return target;
|
723 | 1d9c5a12 | Paolo Bonzini | } |
724 | 1d9c5a12 | Paolo Bonzini | |
725 | 7b7b7d18 | Paolo Bonzini | void object_property_set_bool(Object *obj, bool value, |
726 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
727 | 7b7b7d18 | Paolo Bonzini | { |
728 | 7b7b7d18 | Paolo Bonzini | QBool *qbool = qbool_from_int(value); |
729 | 7b7b7d18 | Paolo Bonzini | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
730 | 7b7b7d18 | Paolo Bonzini | |
731 | 7b7b7d18 | Paolo Bonzini | QDECREF(qbool); |
732 | 7b7b7d18 | Paolo Bonzini | } |
733 | 7b7b7d18 | Paolo Bonzini | |
734 | 7b7b7d18 | Paolo Bonzini | bool object_property_get_bool(Object *obj, const char *name, |
735 | 7b7b7d18 | Paolo Bonzini | Error **errp) |
736 | 7b7b7d18 | Paolo Bonzini | { |
737 | 7b7b7d18 | Paolo Bonzini | QObject *ret = object_property_get_qobject(obj, name, errp); |
738 | 7b7b7d18 | Paolo Bonzini | QBool *qbool; |
739 | 7b7b7d18 | Paolo Bonzini | bool retval;
|
740 | 7b7b7d18 | Paolo Bonzini | |
741 | 7b7b7d18 | Paolo Bonzini | if (!ret) {
|
742 | 7b7b7d18 | Paolo Bonzini | return false; |
743 | 7b7b7d18 | Paolo Bonzini | } |
744 | 7b7b7d18 | Paolo Bonzini | qbool = qobject_to_qbool(ret); |
745 | 7b7b7d18 | Paolo Bonzini | if (!qbool) {
|
746 | 7b7b7d18 | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean");
|
747 | 7b7b7d18 | Paolo Bonzini | retval = false;
|
748 | 7b7b7d18 | Paolo Bonzini | } else {
|
749 | 7b7b7d18 | Paolo Bonzini | retval = qbool_get_int(qbool); |
750 | 7b7b7d18 | Paolo Bonzini | } |
751 | 7b7b7d18 | Paolo Bonzini | |
752 | 7b7b7d18 | Paolo Bonzini | QDECREF(qbool); |
753 | 7b7b7d18 | Paolo Bonzini | return retval;
|
754 | 7b7b7d18 | Paolo Bonzini | } |
755 | 7b7b7d18 | Paolo Bonzini | |
756 | 7b7b7d18 | Paolo Bonzini | void object_property_set_int(Object *obj, int64_t value,
|
757 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
758 | 7b7b7d18 | Paolo Bonzini | { |
759 | 7b7b7d18 | Paolo Bonzini | QInt *qint = qint_from_int(value); |
760 | 7b7b7d18 | Paolo Bonzini | object_property_set_qobject(obj, QOBJECT(qint), name, errp); |
761 | 7b7b7d18 | Paolo Bonzini | |
762 | 7b7b7d18 | Paolo Bonzini | QDECREF(qint); |
763 | 7b7b7d18 | Paolo Bonzini | } |
764 | 7b7b7d18 | Paolo Bonzini | |
765 | 7b7b7d18 | Paolo Bonzini | int64_t object_property_get_int(Object *obj, const char *name, |
766 | 7b7b7d18 | Paolo Bonzini | Error **errp) |
767 | 7b7b7d18 | Paolo Bonzini | { |
768 | 7b7b7d18 | Paolo Bonzini | QObject *ret = object_property_get_qobject(obj, name, errp); |
769 | 7b7b7d18 | Paolo Bonzini | QInt *qint; |
770 | 7b7b7d18 | Paolo Bonzini | int64_t retval; |
771 | 7b7b7d18 | Paolo Bonzini | |
772 | 7b7b7d18 | Paolo Bonzini | if (!ret) {
|
773 | 7b7b7d18 | Paolo Bonzini | return -1; |
774 | 7b7b7d18 | Paolo Bonzini | } |
775 | 7b7b7d18 | Paolo Bonzini | qint = qobject_to_qint(ret); |
776 | 7b7b7d18 | Paolo Bonzini | if (!qint) {
|
777 | 7b7b7d18 | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "int");
|
778 | 7b7b7d18 | Paolo Bonzini | retval = -1;
|
779 | 7b7b7d18 | Paolo Bonzini | } else {
|
780 | 7b7b7d18 | Paolo Bonzini | retval = qint_get_int(qint); |
781 | 7b7b7d18 | Paolo Bonzini | } |
782 | 7b7b7d18 | Paolo Bonzini | |
783 | 7b7b7d18 | Paolo Bonzini | QDECREF(qint); |
784 | 7b7b7d18 | Paolo Bonzini | return retval;
|
785 | b2cd7dee | Paolo Bonzini | } |
786 | b2cd7dee | Paolo Bonzini | |
787 | b2cd7dee | Paolo Bonzini | void object_property_parse(Object *obj, const char *string, |
788 | b2cd7dee | Paolo Bonzini | const char *name, Error **errp) |
789 | b2cd7dee | Paolo Bonzini | { |
790 | b2cd7dee | Paolo Bonzini | StringInputVisitor *mi; |
791 | b2cd7dee | Paolo Bonzini | mi = string_input_visitor_new(string); |
792 | b2cd7dee | Paolo Bonzini | object_property_set(obj, string_input_get_visitor(mi), name, errp); |
793 | b2cd7dee | Paolo Bonzini | |
794 | b2cd7dee | Paolo Bonzini | string_input_visitor_cleanup(mi); |
795 | b2cd7dee | Paolo Bonzini | } |
796 | b2cd7dee | Paolo Bonzini | |
797 | b2cd7dee | Paolo Bonzini | char *object_property_print(Object *obj, const char *name, |
798 | b2cd7dee | Paolo Bonzini | Error **errp) |
799 | b2cd7dee | Paolo Bonzini | { |
800 | b2cd7dee | Paolo Bonzini | StringOutputVisitor *mo; |
801 | b2cd7dee | Paolo Bonzini | char *string;
|
802 | b2cd7dee | Paolo Bonzini | |
803 | b2cd7dee | Paolo Bonzini | mo = string_output_visitor_new(); |
804 | b2cd7dee | Paolo Bonzini | object_property_get(obj, string_output_get_visitor(mo), name, NULL);
|
805 | b2cd7dee | Paolo Bonzini | string = string_output_get_string(mo); |
806 | b2cd7dee | Paolo Bonzini | string_output_visitor_cleanup(mo); |
807 | b2cd7dee | Paolo Bonzini | return string;
|
808 | 7b7b7d18 | Paolo Bonzini | } |
809 | 7b7b7d18 | Paolo Bonzini | |
810 | 57c9fafe | Anthony Liguori | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
811 | 57c9fafe | Anthony Liguori | { |
812 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = object_property_find(obj, name); |
813 | 57c9fafe | Anthony Liguori | |
814 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
815 | 57c9fafe | Anthony Liguori | error_set(errp, QERR_PROPERTY_NOT_FOUND, "", name);
|
816 | 57c9fafe | Anthony Liguori | return NULL; |
817 | 57c9fafe | Anthony Liguori | } |
818 | 57c9fafe | Anthony Liguori | |
819 | 57c9fafe | Anthony Liguori | return prop->type;
|
820 | 57c9fafe | Anthony Liguori | } |
821 | 57c9fafe | Anthony Liguori | |
822 | 57c9fafe | Anthony Liguori | Object *object_get_root(void)
|
823 | 57c9fafe | Anthony Liguori | { |
824 | 8b45d447 | Anthony Liguori | static Object *root;
|
825 | 57c9fafe | Anthony Liguori | |
826 | 8b45d447 | Anthony Liguori | if (!root) {
|
827 | 8b45d447 | Anthony Liguori | root = object_new("container");
|
828 | 57c9fafe | Anthony Liguori | } |
829 | 57c9fafe | Anthony Liguori | |
830 | 8b45d447 | Anthony Liguori | return root;
|
831 | 57c9fafe | Anthony Liguori | } |
832 | 57c9fafe | Anthony Liguori | |
833 | 57c9fafe | Anthony Liguori | static void object_get_child_property(Object *obj, Visitor *v, void *opaque, |
834 | 57c9fafe | Anthony Liguori | const char *name, Error **errp) |
835 | 57c9fafe | Anthony Liguori | { |
836 | 57c9fafe | Anthony Liguori | Object *child = opaque; |
837 | 57c9fafe | Anthony Liguori | gchar *path; |
838 | 57c9fafe | Anthony Liguori | |
839 | 57c9fafe | Anthony Liguori | path = object_get_canonical_path(child); |
840 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
841 | 57c9fafe | Anthony Liguori | g_free(path); |
842 | 57c9fafe | Anthony Liguori | } |
843 | 57c9fafe | Anthony Liguori | |
844 | db85b575 | Anthony Liguori | static void object_finalize_child_property(Object *obj, const char *name, |
845 | db85b575 | Anthony Liguori | void *opaque)
|
846 | db85b575 | Anthony Liguori | { |
847 | db85b575 | Anthony Liguori | Object *child = opaque; |
848 | db85b575 | Anthony Liguori | |
849 | db85b575 | Anthony Liguori | object_unref(child); |
850 | db85b575 | Anthony Liguori | } |
851 | db85b575 | Anthony Liguori | |
852 | 57c9fafe | Anthony Liguori | void object_property_add_child(Object *obj, const char *name, |
853 | 57c9fafe | Anthony Liguori | Object *child, Error **errp) |
854 | 57c9fafe | Anthony Liguori | { |
855 | 57c9fafe | Anthony Liguori | gchar *type; |
856 | 57c9fafe | Anthony Liguori | |
857 | a1e7efdc | Paolo Bonzini | /* Registering an interface object in the composition tree will mightily
|
858 | a1e7efdc | Paolo Bonzini | * confuse object_get_canonical_path (which, on the other hand, knows how
|
859 | a1e7efdc | Paolo Bonzini | * to get the canonical path of an interface object).
|
860 | a1e7efdc | Paolo Bonzini | */
|
861 | a1e7efdc | Paolo Bonzini | assert(!object_is_type(obj, type_interface)); |
862 | a1e7efdc | Paolo Bonzini | |
863 | 57c9fafe | Anthony Liguori | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child)));
|
864 | 57c9fafe | Anthony Liguori | |
865 | 57c9fafe | Anthony Liguori | object_property_add(obj, name, type, object_get_child_property, |
866 | db85b575 | Anthony Liguori | NULL, object_finalize_child_property, child, errp);
|
867 | 57c9fafe | Anthony Liguori | |
868 | 57c9fafe | Anthony Liguori | object_ref(child); |
869 | 57c9fafe | Anthony Liguori | g_assert(child->parent == NULL);
|
870 | 57c9fafe | Anthony Liguori | child->parent = obj; |
871 | 57c9fafe | Anthony Liguori | |
872 | 57c9fafe | Anthony Liguori | g_free(type); |
873 | 57c9fafe | Anthony Liguori | } |
874 | 57c9fafe | Anthony Liguori | |
875 | 57c9fafe | Anthony Liguori | static void object_get_link_property(Object *obj, Visitor *v, void *opaque, |
876 | 57c9fafe | Anthony Liguori | const char *name, Error **errp) |
877 | 57c9fafe | Anthony Liguori | { |
878 | 57c9fafe | Anthony Liguori | Object **child = opaque; |
879 | 57c9fafe | Anthony Liguori | gchar *path; |
880 | 57c9fafe | Anthony Liguori | |
881 | 57c9fafe | Anthony Liguori | if (*child) {
|
882 | 57c9fafe | Anthony Liguori | path = object_get_canonical_path(*child); |
883 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
884 | 57c9fafe | Anthony Liguori | g_free(path); |
885 | 57c9fafe | Anthony Liguori | } else {
|
886 | 57c9fafe | Anthony Liguori | path = (gchar *)"";
|
887 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
888 | 57c9fafe | Anthony Liguori | } |
889 | 57c9fafe | Anthony Liguori | } |
890 | 57c9fafe | Anthony Liguori | |
891 | 57c9fafe | Anthony Liguori | static void object_set_link_property(Object *obj, Visitor *v, void *opaque, |
892 | 57c9fafe | Anthony Liguori | const char *name, Error **errp) |
893 | 57c9fafe | Anthony Liguori | { |
894 | 57c9fafe | Anthony Liguori | Object **child = opaque; |
895 | f0cdc966 | Alexander Barabash | Object *old_target; |
896 | 57c9fafe | Anthony Liguori | bool ambiguous = false; |
897 | 57c9fafe | Anthony Liguori | const char *type; |
898 | 57c9fafe | Anthony Liguori | char *path;
|
899 | 11e35bfd | Paolo Bonzini | gchar *target_type; |
900 | 57c9fafe | Anthony Liguori | |
901 | 57c9fafe | Anthony Liguori | type = object_property_get_type(obj, name, NULL);
|
902 | 57c9fafe | Anthony Liguori | |
903 | 57c9fafe | Anthony Liguori | visit_type_str(v, &path, name, errp); |
904 | 57c9fafe | Anthony Liguori | |
905 | f0cdc966 | Alexander Barabash | old_target = *child; |
906 | f0cdc966 | Alexander Barabash | *child = NULL;
|
907 | 57c9fafe | Anthony Liguori | |
908 | 57c9fafe | Anthony Liguori | if (strcmp(path, "") != 0) { |
909 | 57c9fafe | Anthony Liguori | Object *target; |
910 | 57c9fafe | Anthony Liguori | |
911 | 11e35bfd | Paolo Bonzini | /* Go from link<FOO> to FOO. */
|
912 | 11e35bfd | Paolo Bonzini | target_type = g_strndup(&type[5], strlen(type) - 6); |
913 | 11e35bfd | Paolo Bonzini | target = object_resolve_path_type(path, target_type, &ambiguous); |
914 | 57c9fafe | Anthony Liguori | |
915 | 11e35bfd | Paolo Bonzini | if (ambiguous) {
|
916 | 11e35bfd | Paolo Bonzini | error_set(errp, QERR_AMBIGUOUS_PATH, path); |
917 | 11e35bfd | Paolo Bonzini | } else if (target) { |
918 | 11e35bfd | Paolo Bonzini | object_ref(target); |
919 | 11e35bfd | Paolo Bonzini | *child = target; |
920 | 57c9fafe | Anthony Liguori | } else {
|
921 | 11e35bfd | Paolo Bonzini | target = object_resolve_path(path, &ambiguous); |
922 | 11e35bfd | Paolo Bonzini | if (target || ambiguous) {
|
923 | 11e35bfd | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
924 | 11e35bfd | Paolo Bonzini | } else {
|
925 | 11e35bfd | Paolo Bonzini | error_set(errp, QERR_DEVICE_NOT_FOUND, path); |
926 | 11e35bfd | Paolo Bonzini | } |
927 | 57c9fafe | Anthony Liguori | } |
928 | 11e35bfd | Paolo Bonzini | g_free(target_type); |
929 | 57c9fafe | Anthony Liguori | } |
930 | 57c9fafe | Anthony Liguori | |
931 | 57c9fafe | Anthony Liguori | g_free(path); |
932 | f0cdc966 | Alexander Barabash | |
933 | f0cdc966 | Alexander Barabash | if (old_target != NULL) { |
934 | f0cdc966 | Alexander Barabash | object_unref(old_target); |
935 | f0cdc966 | Alexander Barabash | } |
936 | 57c9fafe | Anthony Liguori | } |
937 | 57c9fafe | Anthony Liguori | |
938 | 57c9fafe | Anthony Liguori | void object_property_add_link(Object *obj, const char *name, |
939 | 57c9fafe | Anthony Liguori | const char *type, Object **child, |
940 | 57c9fafe | Anthony Liguori | Error **errp) |
941 | 57c9fafe | Anthony Liguori | { |
942 | 57c9fafe | Anthony Liguori | gchar *full_type; |
943 | 57c9fafe | Anthony Liguori | |
944 | 57c9fafe | Anthony Liguori | full_type = g_strdup_printf("link<%s>", type);
|
945 | 57c9fafe | Anthony Liguori | |
946 | 57c9fafe | Anthony Liguori | object_property_add(obj, name, full_type, |
947 | 57c9fafe | Anthony Liguori | object_get_link_property, |
948 | 57c9fafe | Anthony Liguori | object_set_link_property, |
949 | 57c9fafe | Anthony Liguori | NULL, child, errp);
|
950 | 57c9fafe | Anthony Liguori | |
951 | 57c9fafe | Anthony Liguori | g_free(full_type); |
952 | 57c9fafe | Anthony Liguori | } |
953 | 57c9fafe | Anthony Liguori | |
954 | 57c9fafe | Anthony Liguori | gchar *object_get_canonical_path(Object *obj) |
955 | 57c9fafe | Anthony Liguori | { |
956 | 57c9fafe | Anthony Liguori | Object *root = object_get_root(); |
957 | 57c9fafe | Anthony Liguori | char *newpath = NULL, *path = NULL; |
958 | 57c9fafe | Anthony Liguori | |
959 | a1e7efdc | Paolo Bonzini | if (object_is_type(obj, type_interface)) {
|
960 | a1e7efdc | Paolo Bonzini | obj = INTERFACE(obj)->obj; |
961 | a1e7efdc | Paolo Bonzini | } |
962 | a1e7efdc | Paolo Bonzini | |
963 | 57c9fafe | Anthony Liguori | while (obj != root) {
|
964 | 57c9fafe | Anthony Liguori | ObjectProperty *prop = NULL;
|
965 | 57c9fafe | Anthony Liguori | |
966 | 57c9fafe | Anthony Liguori | g_assert(obj->parent != NULL);
|
967 | 57c9fafe | Anthony Liguori | |
968 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &obj->parent->properties, node) { |
969 | 57c9fafe | Anthony Liguori | if (!strstart(prop->type, "child<", NULL)) { |
970 | 57c9fafe | Anthony Liguori | continue;
|
971 | 57c9fafe | Anthony Liguori | } |
972 | 57c9fafe | Anthony Liguori | |
973 | 57c9fafe | Anthony Liguori | if (prop->opaque == obj) {
|
974 | 57c9fafe | Anthony Liguori | if (path) {
|
975 | 57c9fafe | Anthony Liguori | newpath = g_strdup_printf("%s/%s", prop->name, path);
|
976 | 57c9fafe | Anthony Liguori | g_free(path); |
977 | 57c9fafe | Anthony Liguori | path = newpath; |
978 | 57c9fafe | Anthony Liguori | } else {
|
979 | 57c9fafe | Anthony Liguori | path = g_strdup(prop->name); |
980 | 57c9fafe | Anthony Liguori | } |
981 | 57c9fafe | Anthony Liguori | break;
|
982 | 57c9fafe | Anthony Liguori | } |
983 | 57c9fafe | Anthony Liguori | } |
984 | 57c9fafe | Anthony Liguori | |
985 | 57c9fafe | Anthony Liguori | g_assert(prop != NULL);
|
986 | 57c9fafe | Anthony Liguori | |
987 | 57c9fafe | Anthony Liguori | obj = obj->parent; |
988 | 57c9fafe | Anthony Liguori | } |
989 | 57c9fafe | Anthony Liguori | |
990 | 57c9fafe | Anthony Liguori | newpath = g_strdup_printf("/%s", path);
|
991 | 57c9fafe | Anthony Liguori | g_free(path); |
992 | 57c9fafe | Anthony Liguori | |
993 | 57c9fafe | Anthony Liguori | return newpath;
|
994 | 57c9fafe | Anthony Liguori | } |
995 | 57c9fafe | Anthony Liguori | |
996 | 57c9fafe | Anthony Liguori | static Object *object_resolve_abs_path(Object *parent,
|
997 | 57c9fafe | Anthony Liguori | gchar **parts, |
998 | 02fe2db6 | Paolo Bonzini | const char *typename, |
999 | 57c9fafe | Anthony Liguori | int index)
|
1000 | 57c9fafe | Anthony Liguori | { |
1001 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
1002 | 57c9fafe | Anthony Liguori | Object *child; |
1003 | 57c9fafe | Anthony Liguori | |
1004 | 57c9fafe | Anthony Liguori | if (parts[index] == NULL) { |
1005 | 02fe2db6 | Paolo Bonzini | return object_dynamic_cast(parent, typename);
|
1006 | 57c9fafe | Anthony Liguori | } |
1007 | 57c9fafe | Anthony Liguori | |
1008 | 57c9fafe | Anthony Liguori | if (strcmp(parts[index], "") == 0) { |
1009 | 02fe2db6 | Paolo Bonzini | return object_resolve_abs_path(parent, parts, typename, index + 1); |
1010 | 57c9fafe | Anthony Liguori | } |
1011 | 57c9fafe | Anthony Liguori | |
1012 | 57c9fafe | Anthony Liguori | prop = object_property_find(parent, parts[index]); |
1013 | 57c9fafe | Anthony Liguori | if (prop == NULL) { |
1014 | 57c9fafe | Anthony Liguori | return NULL; |
1015 | 57c9fafe | Anthony Liguori | } |
1016 | 57c9fafe | Anthony Liguori | |
1017 | 57c9fafe | Anthony Liguori | child = NULL;
|
1018 | 57c9fafe | Anthony Liguori | if (strstart(prop->type, "link<", NULL)) { |
1019 | 57c9fafe | Anthony Liguori | Object **pchild = prop->opaque; |
1020 | 57c9fafe | Anthony Liguori | if (*pchild) {
|
1021 | 57c9fafe | Anthony Liguori | child = *pchild; |
1022 | 57c9fafe | Anthony Liguori | } |
1023 | 57c9fafe | Anthony Liguori | } else if (strstart(prop->type, "child<", NULL)) { |
1024 | 57c9fafe | Anthony Liguori | child = prop->opaque; |
1025 | 57c9fafe | Anthony Liguori | } |
1026 | 57c9fafe | Anthony Liguori | |
1027 | 57c9fafe | Anthony Liguori | if (!child) {
|
1028 | 57c9fafe | Anthony Liguori | return NULL; |
1029 | 57c9fafe | Anthony Liguori | } |
1030 | 57c9fafe | Anthony Liguori | |
1031 | 02fe2db6 | Paolo Bonzini | return object_resolve_abs_path(child, parts, typename, index + 1); |
1032 | 57c9fafe | Anthony Liguori | } |
1033 | 57c9fafe | Anthony Liguori | |
1034 | 57c9fafe | Anthony Liguori | static Object *object_resolve_partial_path(Object *parent,
|
1035 | 57c9fafe | Anthony Liguori | gchar **parts, |
1036 | 02fe2db6 | Paolo Bonzini | const char *typename, |
1037 | 57c9fafe | Anthony Liguori | bool *ambiguous)
|
1038 | 57c9fafe | Anthony Liguori | { |
1039 | 57c9fafe | Anthony Liguori | Object *obj; |
1040 | 57c9fafe | Anthony Liguori | ObjectProperty *prop; |
1041 | 57c9fafe | Anthony Liguori | |
1042 | 02fe2db6 | Paolo Bonzini | obj = object_resolve_abs_path(parent, parts, typename, 0);
|
1043 | 57c9fafe | Anthony Liguori | |
1044 | 57c9fafe | Anthony Liguori | QTAILQ_FOREACH(prop, &parent->properties, node) { |
1045 | 57c9fafe | Anthony Liguori | Object *found; |
1046 | 57c9fafe | Anthony Liguori | |
1047 | 57c9fafe | Anthony Liguori | if (!strstart(prop->type, "child<", NULL)) { |
1048 | 57c9fafe | Anthony Liguori | continue;
|
1049 | 57c9fafe | Anthony Liguori | } |
1050 | 57c9fafe | Anthony Liguori | |
1051 | 02fe2db6 | Paolo Bonzini | found = object_resolve_partial_path(prop->opaque, parts, |
1052 | 02fe2db6 | Paolo Bonzini | typename, ambiguous); |
1053 | 57c9fafe | Anthony Liguori | if (found) {
|
1054 | 57c9fafe | Anthony Liguori | if (obj) {
|
1055 | 57c9fafe | Anthony Liguori | if (ambiguous) {
|
1056 | 57c9fafe | Anthony Liguori | *ambiguous = true;
|
1057 | 57c9fafe | Anthony Liguori | } |
1058 | 57c9fafe | Anthony Liguori | return NULL; |
1059 | 57c9fafe | Anthony Liguori | } |
1060 | 57c9fafe | Anthony Liguori | obj = found; |
1061 | 57c9fafe | Anthony Liguori | } |
1062 | 57c9fafe | Anthony Liguori | |
1063 | 57c9fafe | Anthony Liguori | if (ambiguous && *ambiguous) {
|
1064 | 57c9fafe | Anthony Liguori | return NULL; |
1065 | 57c9fafe | Anthony Liguori | } |
1066 | 57c9fafe | Anthony Liguori | } |
1067 | 57c9fafe | Anthony Liguori | |
1068 | 57c9fafe | Anthony Liguori | return obj;
|
1069 | 57c9fafe | Anthony Liguori | } |
1070 | 57c9fafe | Anthony Liguori | |
1071 | 02fe2db6 | Paolo Bonzini | Object *object_resolve_path_type(const char *path, const char *typename, |
1072 | 02fe2db6 | Paolo Bonzini | bool *ambiguous)
|
1073 | 57c9fafe | Anthony Liguori | { |
1074 | 57c9fafe | Anthony Liguori | bool partial_path = true; |
1075 | 57c9fafe | Anthony Liguori | Object *obj; |
1076 | 57c9fafe | Anthony Liguori | gchar **parts; |
1077 | 57c9fafe | Anthony Liguori | |
1078 | 57c9fafe | Anthony Liguori | parts = g_strsplit(path, "/", 0); |
1079 | 57c9fafe | Anthony Liguori | if (parts == NULL || parts[0] == NULL) { |
1080 | 57c9fafe | Anthony Liguori | g_strfreev(parts); |
1081 | 57c9fafe | Anthony Liguori | return object_get_root();
|
1082 | 57c9fafe | Anthony Liguori | } |
1083 | 57c9fafe | Anthony Liguori | |
1084 | 57c9fafe | Anthony Liguori | if (strcmp(parts[0], "") == 0) { |
1085 | 57c9fafe | Anthony Liguori | partial_path = false;
|
1086 | 57c9fafe | Anthony Liguori | } |
1087 | 57c9fafe | Anthony Liguori | |
1088 | 57c9fafe | Anthony Liguori | if (partial_path) {
|
1089 | 57c9fafe | Anthony Liguori | if (ambiguous) {
|
1090 | 57c9fafe | Anthony Liguori | *ambiguous = false;
|
1091 | 57c9fafe | Anthony Liguori | } |
1092 | 02fe2db6 | Paolo Bonzini | obj = object_resolve_partial_path(object_get_root(), parts, |
1093 | 02fe2db6 | Paolo Bonzini | typename, ambiguous); |
1094 | 57c9fafe | Anthony Liguori | } else {
|
1095 | 02fe2db6 | Paolo Bonzini | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1);
|
1096 | 57c9fafe | Anthony Liguori | } |
1097 | 57c9fafe | Anthony Liguori | |
1098 | 57c9fafe | Anthony Liguori | g_strfreev(parts); |
1099 | 57c9fafe | Anthony Liguori | |
1100 | 57c9fafe | Anthony Liguori | return obj;
|
1101 | 57c9fafe | Anthony Liguori | } |
1102 | 57c9fafe | Anthony Liguori | |
1103 | 02fe2db6 | Paolo Bonzini | Object *object_resolve_path(const char *path, bool *ambiguous) |
1104 | 02fe2db6 | Paolo Bonzini | { |
1105 | 02fe2db6 | Paolo Bonzini | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous);
|
1106 | 02fe2db6 | Paolo Bonzini | } |
1107 | 02fe2db6 | Paolo Bonzini | |
1108 | 57c9fafe | Anthony Liguori | typedef struct StringProperty |
1109 | 57c9fafe | Anthony Liguori | { |
1110 | 57c9fafe | Anthony Liguori | char *(*get)(Object *, Error **);
|
1111 | 57c9fafe | Anthony Liguori | void (*set)(Object *, const char *, Error **); |
1112 | 57c9fafe | Anthony Liguori | } StringProperty; |
1113 | 57c9fafe | Anthony Liguori | |
1114 | 7b7b7d18 | Paolo Bonzini | static void property_get_str(Object *obj, Visitor *v, void *opaque, |
1115 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
1116 | 57c9fafe | Anthony Liguori | { |
1117 | 57c9fafe | Anthony Liguori | StringProperty *prop = opaque; |
1118 | 57c9fafe | Anthony Liguori | char *value;
|
1119 | 57c9fafe | Anthony Liguori | |
1120 | 57c9fafe | Anthony Liguori | value = prop->get(obj, errp); |
1121 | 57c9fafe | Anthony Liguori | if (value) {
|
1122 | 57c9fafe | Anthony Liguori | visit_type_str(v, &value, name, errp); |
1123 | 57c9fafe | Anthony Liguori | g_free(value); |
1124 | 57c9fafe | Anthony Liguori | } |
1125 | 57c9fafe | Anthony Liguori | } |
1126 | 57c9fafe | Anthony Liguori | |
1127 | 7b7b7d18 | Paolo Bonzini | static void property_set_str(Object *obj, Visitor *v, void *opaque, |
1128 | 7b7b7d18 | Paolo Bonzini | const char *name, Error **errp) |
1129 | 57c9fafe | Anthony Liguori | { |
1130 | 57c9fafe | Anthony Liguori | StringProperty *prop = opaque; |
1131 | 57c9fafe | Anthony Liguori | char *value;
|
1132 | 57c9fafe | Anthony Liguori | Error *local_err = NULL;
|
1133 | 57c9fafe | Anthony Liguori | |
1134 | 57c9fafe | Anthony Liguori | visit_type_str(v, &value, name, &local_err); |
1135 | 57c9fafe | Anthony Liguori | if (local_err) {
|
1136 | 57c9fafe | Anthony Liguori | error_propagate(errp, local_err); |
1137 | 57c9fafe | Anthony Liguori | return;
|
1138 | 57c9fafe | Anthony Liguori | } |
1139 | 57c9fafe | Anthony Liguori | |
1140 | 57c9fafe | Anthony Liguori | prop->set(obj, value, errp); |
1141 | 57c9fafe | Anthony Liguori | g_free(value); |
1142 | 57c9fafe | Anthony Liguori | } |
1143 | 57c9fafe | Anthony Liguori | |
1144 | 7b7b7d18 | Paolo Bonzini | static void property_release_str(Object *obj, const char *name, |
1145 | 7b7b7d18 | Paolo Bonzini | void *opaque)
|
1146 | 57c9fafe | Anthony Liguori | { |
1147 | 57c9fafe | Anthony Liguori | StringProperty *prop = opaque; |
1148 | 57c9fafe | Anthony Liguori | g_free(prop); |
1149 | 57c9fafe | Anthony Liguori | } |
1150 | 57c9fafe | Anthony Liguori | |
1151 | 57c9fafe | Anthony Liguori | void object_property_add_str(Object *obj, const char *name, |
1152 | 57c9fafe | Anthony Liguori | char *(*get)(Object *, Error **),
|
1153 | 57c9fafe | Anthony Liguori | void (*set)(Object *, const char *, Error **), |
1154 | 57c9fafe | Anthony Liguori | Error **errp) |
1155 | 57c9fafe | Anthony Liguori | { |
1156 | 57c9fafe | Anthony Liguori | StringProperty *prop = g_malloc0(sizeof(*prop));
|
1157 | 57c9fafe | Anthony Liguori | |
1158 | 57c9fafe | Anthony Liguori | prop->get = get; |
1159 | 57c9fafe | Anthony Liguori | prop->set = set; |
1160 | 57c9fafe | Anthony Liguori | |
1161 | 57c9fafe | Anthony Liguori | object_property_add(obj, name, "string",
|
1162 | 7b7b7d18 | Paolo Bonzini | get ? property_get_str : NULL,
|
1163 | 7b7b7d18 | Paolo Bonzini | set ? property_set_str : NULL,
|
1164 | 7b7b7d18 | Paolo Bonzini | property_release_str, |
1165 | 57c9fafe | Anthony Liguori | prop, errp); |
1166 | 57c9fafe | Anthony Liguori | } |