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Commit | Line | Data |
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2f28d2ff AL |
1 | /* |
2 | * QEMU Object Model | |
3 | * | |
4 | * Copyright IBM, Corp. 2011 | |
5 | * | |
6 | * Authors: | |
7 | * Anthony Liguori <aliguori@us.ibm.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
10 | * See the COPYING file in the top-level directory. | |
11 | */ | |
12 | ||
14cccb61 | 13 | #include "qom/object.h" |
a31bdae5 | 14 | #include "qom/object_interfaces.h" |
2f28d2ff | 15 | #include "qemu-common.h" |
7b1b5d19 | 16 | #include "qapi/visitor.h" |
1f21772d | 17 | #include "qapi-visit.h" |
b2cd7dee PB |
18 | #include "qapi/string-input-visitor.h" |
19 | #include "qapi/string-output-visitor.h" | |
7b1b5d19 | 20 | #include "qapi/qmp/qerror.h" |
fa131d94 | 21 | #include "trace.h" |
2f28d2ff | 22 | |
7b7b7d18 PB |
23 | /* TODO: replace QObject with a simpler visitor to avoid a dependency |
24 | * of the QOM core on QObject? */ | |
14cccb61 | 25 | #include "qom/qom-qobject.h" |
7b1b5d19 PB |
26 | #include "qapi/qmp/qobject.h" |
27 | #include "qapi/qmp/qbool.h" | |
28 | #include "qapi/qmp/qint.h" | |
29 | #include "qapi/qmp/qstring.h" | |
7b7b7d18 | 30 | |
2f28d2ff AL |
31 | #define MAX_INTERFACES 32 |
32 | ||
33 | typedef struct InterfaceImpl InterfaceImpl; | |
34 | typedef struct TypeImpl TypeImpl; | |
35 | ||
36 | struct InterfaceImpl | |
37 | { | |
33e95c63 | 38 | const char *typename; |
2f28d2ff AL |
39 | }; |
40 | ||
41 | struct TypeImpl | |
42 | { | |
43 | const char *name; | |
44 | ||
45 | size_t class_size; | |
46 | ||
47 | size_t instance_size; | |
48 | ||
49 | void (*class_init)(ObjectClass *klass, void *data); | |
3b50e311 | 50 | void (*class_base_init)(ObjectClass *klass, void *data); |
2f28d2ff AL |
51 | void (*class_finalize)(ObjectClass *klass, void *data); |
52 | ||
53 | void *class_data; | |
54 | ||
55 | void (*instance_init)(Object *obj); | |
8231c2dd | 56 | void (*instance_post_init)(Object *obj); |
2f28d2ff AL |
57 | void (*instance_finalize)(Object *obj); |
58 | ||
59 | bool abstract; | |
60 | ||
61 | const char *parent; | |
62 | TypeImpl *parent_type; | |
63 | ||
64 | ObjectClass *class; | |
65 | ||
66 | int num_interfaces; | |
67 | InterfaceImpl interfaces[MAX_INTERFACES]; | |
68 | }; | |
69 | ||
9970bd88 PB |
70 | static Type type_interface; |
71 | ||
2f28d2ff AL |
72 | static GHashTable *type_table_get(void) |
73 | { | |
74 | static GHashTable *type_table; | |
75 | ||
76 | if (type_table == NULL) { | |
77 | type_table = g_hash_table_new(g_str_hash, g_str_equal); | |
78 | } | |
79 | ||
80 | return type_table; | |
81 | } | |
82 | ||
f54c19ca HP |
83 | static bool enumerating_types; |
84 | ||
2f28d2ff AL |
85 | static void type_table_add(TypeImpl *ti) |
86 | { | |
f54c19ca | 87 | assert(!enumerating_types); |
2f28d2ff AL |
88 | g_hash_table_insert(type_table_get(), (void *)ti->name, ti); |
89 | } | |
90 | ||
91 | static TypeImpl *type_table_lookup(const char *name) | |
92 | { | |
93 | return g_hash_table_lookup(type_table_get(), name); | |
94 | } | |
95 | ||
b061dc41 | 96 | static TypeImpl *type_new(const TypeInfo *info) |
2f28d2ff AL |
97 | { |
98 | TypeImpl *ti = g_malloc0(sizeof(*ti)); | |
33e95c63 | 99 | int i; |
2f28d2ff AL |
100 | |
101 | g_assert(info->name != NULL); | |
102 | ||
73093354 AL |
103 | if (type_table_lookup(info->name) != NULL) { |
104 | fprintf(stderr, "Registering `%s' which already exists\n", info->name); | |
105 | abort(); | |
106 | } | |
107 | ||
2f28d2ff AL |
108 | ti->name = g_strdup(info->name); |
109 | ti->parent = g_strdup(info->parent); | |
110 | ||
111 | ti->class_size = info->class_size; | |
112 | ti->instance_size = info->instance_size; | |
113 | ||
114 | ti->class_init = info->class_init; | |
3b50e311 | 115 | ti->class_base_init = info->class_base_init; |
2f28d2ff AL |
116 | ti->class_finalize = info->class_finalize; |
117 | ti->class_data = info->class_data; | |
118 | ||
119 | ti->instance_init = info->instance_init; | |
8231c2dd | 120 | ti->instance_post_init = info->instance_post_init; |
2f28d2ff AL |
121 | ti->instance_finalize = info->instance_finalize; |
122 | ||
123 | ti->abstract = info->abstract; | |
124 | ||
33e95c63 AL |
125 | for (i = 0; info->interfaces && info->interfaces[i].type; i++) { |
126 | ti->interfaces[i].typename = g_strdup(info->interfaces[i].type); | |
2f28d2ff | 127 | } |
33e95c63 | 128 | ti->num_interfaces = i; |
2f28d2ff | 129 | |
b061dc41 PB |
130 | return ti; |
131 | } | |
2f28d2ff | 132 | |
b061dc41 PB |
133 | static TypeImpl *type_register_internal(const TypeInfo *info) |
134 | { | |
135 | TypeImpl *ti; | |
136 | ti = type_new(info); | |
137 | ||
138 | type_table_add(ti); | |
2f28d2ff AL |
139 | return ti; |
140 | } | |
141 | ||
049cb3cf PB |
142 | TypeImpl *type_register(const TypeInfo *info) |
143 | { | |
144 | assert(info->parent); | |
145 | return type_register_internal(info); | |
146 | } | |
147 | ||
2f28d2ff AL |
148 | TypeImpl *type_register_static(const TypeInfo *info) |
149 | { | |
150 | return type_register(info); | |
151 | } | |
152 | ||
153 | static TypeImpl *type_get_by_name(const char *name) | |
154 | { | |
155 | if (name == NULL) { | |
156 | return NULL; | |
157 | } | |
158 | ||
159 | return type_table_lookup(name); | |
160 | } | |
161 | ||
162 | static TypeImpl *type_get_parent(TypeImpl *type) | |
163 | { | |
164 | if (!type->parent_type && type->parent) { | |
165 | type->parent_type = type_get_by_name(type->parent); | |
166 | g_assert(type->parent_type != NULL); | |
167 | } | |
168 | ||
169 | return type->parent_type; | |
170 | } | |
171 | ||
172 | static bool type_has_parent(TypeImpl *type) | |
173 | { | |
174 | return (type->parent != NULL); | |
175 | } | |
176 | ||
177 | static size_t type_class_get_size(TypeImpl *ti) | |
178 | { | |
179 | if (ti->class_size) { | |
180 | return ti->class_size; | |
181 | } | |
182 | ||
183 | if (type_has_parent(ti)) { | |
184 | return type_class_get_size(type_get_parent(ti)); | |
185 | } | |
186 | ||
187 | return sizeof(ObjectClass); | |
188 | } | |
189 | ||
aca59af6 IM |
190 | static size_t type_object_get_size(TypeImpl *ti) |
191 | { | |
192 | if (ti->instance_size) { | |
193 | return ti->instance_size; | |
194 | } | |
195 | ||
196 | if (type_has_parent(ti)) { | |
197 | return type_object_get_size(type_get_parent(ti)); | |
198 | } | |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
33e95c63 | 203 | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
2f28d2ff | 204 | { |
33e95c63 AL |
205 | assert(target_type); |
206 | ||
207 | /* Check if typename is a direct ancestor of type */ | |
208 | while (type) { | |
209 | if (type == target_type) { | |
210 | return true; | |
211 | } | |
2f28d2ff | 212 | |
33e95c63 AL |
213 | type = type_get_parent(type); |
214 | } | |
215 | ||
216 | return false; | |
217 | } | |
218 | ||
219 | static void type_initialize(TypeImpl *ti); | |
220 | ||
b061dc41 PB |
221 | static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type, |
222 | TypeImpl *parent_type) | |
33e95c63 AL |
223 | { |
224 | InterfaceClass *new_iface; | |
225 | TypeInfo info = { }; | |
226 | TypeImpl *iface_impl; | |
227 | ||
b061dc41 PB |
228 | info.parent = parent_type->name; |
229 | info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name); | |
33e95c63 AL |
230 | info.abstract = true; |
231 | ||
b061dc41 PB |
232 | iface_impl = type_new(&info); |
233 | iface_impl->parent_type = parent_type; | |
33e95c63 AL |
234 | type_initialize(iface_impl); |
235 | g_free((char *)info.name); | |
236 | ||
237 | new_iface = (InterfaceClass *)iface_impl->class; | |
238 | new_iface->concrete_class = ti->class; | |
b061dc41 | 239 | new_iface->interface_type = interface_type; |
33e95c63 AL |
240 | |
241 | ti->class->interfaces = g_slist_append(ti->class->interfaces, | |
242 | iface_impl->class); | |
2f28d2ff AL |
243 | } |
244 | ||
ac451033 | 245 | static void type_initialize(TypeImpl *ti) |
2f28d2ff | 246 | { |
745549c8 | 247 | TypeImpl *parent; |
2f28d2ff AL |
248 | |
249 | if (ti->class) { | |
250 | return; | |
251 | } | |
252 | ||
253 | ti->class_size = type_class_get_size(ti); | |
aca59af6 | 254 | ti->instance_size = type_object_get_size(ti); |
2f28d2ff AL |
255 | |
256 | ti->class = g_malloc0(ti->class_size); | |
2f28d2ff | 257 | |
745549c8 PB |
258 | parent = type_get_parent(ti); |
259 | if (parent) { | |
ac451033 | 260 | type_initialize(parent); |
33e95c63 AL |
261 | GSList *e; |
262 | int i; | |
2f28d2ff | 263 | |
2f28d2ff | 264 | g_assert(parent->class_size <= ti->class_size); |
745549c8 | 265 | memcpy(ti->class, parent->class, parent->class_size); |
3e407de4 | 266 | ti->class->interfaces = NULL; |
33e95c63 AL |
267 | |
268 | for (e = parent->class->interfaces; e; e = e->next) { | |
b061dc41 PB |
269 | InterfaceClass *iface = e->data; |
270 | ObjectClass *klass = OBJECT_CLASS(iface); | |
271 | ||
272 | type_initialize_interface(ti, iface->interface_type, klass->type); | |
33e95c63 AL |
273 | } |
274 | ||
275 | for (i = 0; i < ti->num_interfaces; i++) { | |
276 | TypeImpl *t = type_get_by_name(ti->interfaces[i].typename); | |
277 | for (e = ti->class->interfaces; e; e = e->next) { | |
278 | TypeImpl *target_type = OBJECT_CLASS(e->data)->type; | |
279 | ||
280 | if (type_is_ancestor(target_type, t)) { | |
281 | break; | |
282 | } | |
283 | } | |
284 | ||
285 | if (e) { | |
286 | continue; | |
287 | } | |
288 | ||
b061dc41 | 289 | type_initialize_interface(ti, t, t); |
33e95c63 | 290 | } |
745549c8 | 291 | } |
2f28d2ff | 292 | |
745549c8 | 293 | ti->class->type = ti; |
3b50e311 | 294 | |
745549c8 PB |
295 | while (parent) { |
296 | if (parent->class_base_init) { | |
297 | parent->class_base_init(ti->class, ti->class_data); | |
3b50e311 | 298 | } |
745549c8 | 299 | parent = type_get_parent(parent); |
2f28d2ff AL |
300 | } |
301 | ||
2f28d2ff AL |
302 | if (ti->class_init) { |
303 | ti->class_init(ti->class, ti->class_data); | |
304 | } | |
2f28d2ff AL |
305 | } |
306 | ||
307 | static void object_init_with_type(Object *obj, TypeImpl *ti) | |
308 | { | |
2f28d2ff AL |
309 | if (type_has_parent(ti)) { |
310 | object_init_with_type(obj, type_get_parent(ti)); | |
311 | } | |
312 | ||
2f28d2ff AL |
313 | if (ti->instance_init) { |
314 | ti->instance_init(obj); | |
315 | } | |
316 | } | |
317 | ||
8231c2dd EH |
318 | static void object_post_init_with_type(Object *obj, TypeImpl *ti) |
319 | { | |
320 | if (ti->instance_post_init) { | |
321 | ti->instance_post_init(obj); | |
322 | } | |
323 | ||
324 | if (type_has_parent(ti)) { | |
325 | object_post_init_with_type(obj, type_get_parent(ti)); | |
326 | } | |
327 | } | |
328 | ||
5b9237f6 | 329 | void object_initialize_with_type(void *data, size_t size, TypeImpl *type) |
2f28d2ff AL |
330 | { |
331 | Object *obj = data; | |
332 | ||
333 | g_assert(type != NULL); | |
ac451033 | 334 | type_initialize(type); |
aca59af6 IM |
335 | |
336 | g_assert(type->instance_size >= sizeof(Object)); | |
2f28d2ff | 337 | g_assert(type->abstract == false); |
5b9237f6 | 338 | g_assert(size >= type->instance_size); |
2f28d2ff AL |
339 | |
340 | memset(obj, 0, type->instance_size); | |
341 | obj->class = type->class; | |
764b6312 | 342 | object_ref(obj); |
57c9fafe | 343 | QTAILQ_INIT(&obj->properties); |
2f28d2ff | 344 | object_init_with_type(obj, type); |
8231c2dd | 345 | object_post_init_with_type(obj, type); |
2f28d2ff AL |
346 | } |
347 | ||
213f0c4f | 348 | void object_initialize(void *data, size_t size, const char *typename) |
2f28d2ff AL |
349 | { |
350 | TypeImpl *type = type_get_by_name(typename); | |
351 | ||
5b9237f6 | 352 | object_initialize_with_type(data, size, type); |
2f28d2ff AL |
353 | } |
354 | ||
5d9d3f47 AF |
355 | static inline bool object_property_is_child(ObjectProperty *prop) |
356 | { | |
357 | return strstart(prop->type, "child<", NULL); | |
358 | } | |
359 | ||
57c9fafe AL |
360 | static void object_property_del_all(Object *obj) |
361 | { | |
362 | while (!QTAILQ_EMPTY(&obj->properties)) { | |
363 | ObjectProperty *prop = QTAILQ_FIRST(&obj->properties); | |
364 | ||
365 | QTAILQ_REMOVE(&obj->properties, prop, node); | |
366 | ||
367 | if (prop->release) { | |
368 | prop->release(obj, prop->name, prop->opaque); | |
369 | } | |
370 | ||
371 | g_free(prop->name); | |
372 | g_free(prop->type); | |
80742642 | 373 | g_free(prop->description); |
57c9fafe AL |
374 | g_free(prop); |
375 | } | |
376 | } | |
377 | ||
378 | static void object_property_del_child(Object *obj, Object *child, Error **errp) | |
379 | { | |
380 | ObjectProperty *prop; | |
381 | ||
382 | QTAILQ_FOREACH(prop, &obj->properties, node) { | |
5d9d3f47 | 383 | if (object_property_is_child(prop) && prop->opaque == child) { |
57c9fafe | 384 | object_property_del(obj, prop->name, errp); |
6c1fdcf9 | 385 | break; |
57c9fafe AL |
386 | } |
387 | } | |
388 | } | |
389 | ||
390 | void object_unparent(Object *obj) | |
391 | { | |
e998fa8d MT |
392 | if (obj->parent) { |
393 | object_property_del_child(obj->parent, obj, NULL); | |
394 | } | |
57c9fafe AL |
395 | } |
396 | ||
2f28d2ff AL |
397 | static void object_deinit(Object *obj, TypeImpl *type) |
398 | { | |
399 | if (type->instance_finalize) { | |
400 | type->instance_finalize(obj); | |
401 | } | |
402 | ||
2f28d2ff AL |
403 | if (type_has_parent(type)) { |
404 | object_deinit(obj, type_get_parent(type)); | |
405 | } | |
406 | } | |
407 | ||
339c2708 | 408 | static void object_finalize(void *data) |
2f28d2ff AL |
409 | { |
410 | Object *obj = data; | |
411 | TypeImpl *ti = obj->class->type; | |
412 | ||
57c9fafe | 413 | object_property_del_all(obj); |
76a6e1cc | 414 | object_deinit(obj, ti); |
db85b575 AL |
415 | |
416 | g_assert(obj->ref == 0); | |
fde9bf44 PB |
417 | if (obj->free) { |
418 | obj->free(obj); | |
419 | } | |
2f28d2ff AL |
420 | } |
421 | ||
422 | Object *object_new_with_type(Type type) | |
423 | { | |
424 | Object *obj; | |
425 | ||
426 | g_assert(type != NULL); | |
ac451033 | 427 | type_initialize(type); |
2f28d2ff AL |
428 | |
429 | obj = g_malloc(type->instance_size); | |
5b9237f6 | 430 | object_initialize_with_type(obj, type->instance_size, type); |
fde9bf44 | 431 | obj->free = g_free; |
2f28d2ff AL |
432 | |
433 | return obj; | |
434 | } | |
435 | ||
436 | Object *object_new(const char *typename) | |
437 | { | |
438 | TypeImpl *ti = type_get_by_name(typename); | |
439 | ||
440 | return object_new_with_type(ti); | |
441 | } | |
442 | ||
a31bdae5 DB |
443 | |
444 | Object *object_new_with_props(const char *typename, | |
445 | Object *parent, | |
446 | const char *id, | |
447 | Error **errp, | |
448 | ...) | |
449 | { | |
450 | va_list vargs; | |
451 | Object *obj; | |
452 | ||
453 | va_start(vargs, errp); | |
454 | obj = object_new_with_propv(typename, parent, id, errp, vargs); | |
455 | va_end(vargs); | |
456 | ||
457 | return obj; | |
458 | } | |
459 | ||
460 | ||
461 | Object *object_new_with_propv(const char *typename, | |
462 | Object *parent, | |
463 | const char *id, | |
464 | Error **errp, | |
465 | va_list vargs) | |
466 | { | |
467 | Object *obj; | |
468 | ObjectClass *klass; | |
469 | Error *local_err = NULL; | |
470 | ||
471 | klass = object_class_by_name(typename); | |
472 | if (!klass) { | |
473 | error_setg(errp, "invalid object type: %s", typename); | |
474 | return NULL; | |
475 | } | |
476 | ||
477 | if (object_class_is_abstract(klass)) { | |
478 | error_setg(errp, "object type '%s' is abstract", typename); | |
479 | return NULL; | |
480 | } | |
481 | obj = object_new(typename); | |
482 | ||
483 | if (object_set_propv(obj, &local_err, vargs) < 0) { | |
484 | goto error; | |
485 | } | |
486 | ||
487 | object_property_add_child(parent, id, obj, &local_err); | |
488 | if (local_err) { | |
489 | goto error; | |
490 | } | |
491 | ||
492 | if (object_dynamic_cast(obj, TYPE_USER_CREATABLE)) { | |
493 | user_creatable_complete(obj, &local_err); | |
494 | if (local_err) { | |
495 | object_unparent(obj); | |
496 | goto error; | |
497 | } | |
498 | } | |
499 | ||
500 | object_unref(OBJECT(obj)); | |
501 | return obj; | |
502 | ||
503 | error: | |
504 | if (local_err) { | |
505 | error_propagate(errp, local_err); | |
506 | } | |
507 | object_unref(obj); | |
508 | return NULL; | |
509 | } | |
510 | ||
511 | ||
512 | int object_set_props(Object *obj, | |
513 | Error **errp, | |
514 | ...) | |
515 | { | |
516 | va_list vargs; | |
517 | int ret; | |
518 | ||
519 | va_start(vargs, errp); | |
520 | ret = object_set_propv(obj, errp, vargs); | |
521 | va_end(vargs); | |
522 | ||
523 | return ret; | |
524 | } | |
525 | ||
526 | ||
527 | int object_set_propv(Object *obj, | |
528 | Error **errp, | |
529 | va_list vargs) | |
530 | { | |
531 | const char *propname; | |
532 | Error *local_err = NULL; | |
533 | ||
534 | propname = va_arg(vargs, char *); | |
535 | while (propname != NULL) { | |
536 | const char *value = va_arg(vargs, char *); | |
537 | ||
538 | g_assert(value != NULL); | |
539 | object_property_parse(obj, value, propname, &local_err); | |
540 | if (local_err) { | |
541 | error_propagate(errp, local_err); | |
542 | return -1; | |
543 | } | |
544 | propname = va_arg(vargs, char *); | |
545 | } | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
550 | ||
2f28d2ff AL |
551 | Object *object_dynamic_cast(Object *obj, const char *typename) |
552 | { | |
b7f43fe4 | 553 | if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) { |
acc4af3f PB |
554 | return obj; |
555 | } | |
556 | ||
2f28d2ff AL |
557 | return NULL; |
558 | } | |
559 | ||
be17f18b PB |
560 | Object *object_dynamic_cast_assert(Object *obj, const char *typename, |
561 | const char *file, int line, const char *func) | |
2f28d2ff | 562 | { |
fa131d94 PB |
563 | trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)", |
564 | typename, file, line, func); | |
565 | ||
3556c233 | 566 | #ifdef CONFIG_QOM_CAST_DEBUG |
03587328 AL |
567 | int i; |
568 | Object *inst; | |
569 | ||
95916abc | 570 | for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 571 | if (obj->class->object_cast_cache[i] == typename) { |
03587328 AL |
572 | goto out; |
573 | } | |
574 | } | |
575 | ||
576 | inst = object_dynamic_cast(obj, typename); | |
2f28d2ff | 577 | |
b7f43fe4 | 578 | if (!inst && obj) { |
be17f18b PB |
579 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
580 | file, line, func, obj, typename); | |
2f28d2ff AL |
581 | abort(); |
582 | } | |
583 | ||
3556c233 | 584 | assert(obj == inst); |
03587328 | 585 | |
95916abc | 586 | if (obj && obj == inst) { |
03587328 | 587 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c PC |
588 | obj->class->object_cast_cache[i - 1] = |
589 | obj->class->object_cast_cache[i]; | |
03587328 | 590 | } |
0ab4c94c | 591 | obj->class->object_cast_cache[i - 1] = typename; |
03587328 AL |
592 | } |
593 | ||
594 | out: | |
3556c233 PB |
595 | #endif |
596 | return obj; | |
2f28d2ff AL |
597 | } |
598 | ||
599 | ObjectClass *object_class_dynamic_cast(ObjectClass *class, | |
600 | const char *typename) | |
601 | { | |
33e95c63 | 602 | ObjectClass *ret = NULL; |
bf0fda34 PB |
603 | TypeImpl *target_type; |
604 | TypeImpl *type; | |
2f28d2ff | 605 | |
bf0fda34 PB |
606 | if (!class) { |
607 | return NULL; | |
608 | } | |
609 | ||
793c96b5 | 610 | /* A simple fast path that can trigger a lot for leaf classes. */ |
bf0fda34 | 611 | type = class->type; |
793c96b5 PB |
612 | if (type->name == typename) { |
613 | return class; | |
614 | } | |
615 | ||
bf0fda34 | 616 | target_type = type_get_by_name(typename); |
9ab880b3 AG |
617 | if (!target_type) { |
618 | /* target class type unknown, so fail the cast */ | |
619 | return NULL; | |
620 | } | |
621 | ||
00e2ceae PC |
622 | if (type->class->interfaces && |
623 | type_is_ancestor(target_type, type_interface)) { | |
33e95c63 AL |
624 | int found = 0; |
625 | GSList *i; | |
2f28d2ff | 626 | |
33e95c63 AL |
627 | for (i = class->interfaces; i; i = i->next) { |
628 | ObjectClass *target_class = i->data; | |
629 | ||
630 | if (type_is_ancestor(target_class->type, target_type)) { | |
631 | ret = target_class; | |
632 | found++; | |
633 | } | |
634 | } | |
635 | ||
636 | /* The match was ambiguous, don't allow a cast */ | |
637 | if (found > 1) { | |
638 | ret = NULL; | |
639 | } | |
640 | } else if (type_is_ancestor(type, target_type)) { | |
641 | ret = class; | |
2f28d2ff AL |
642 | } |
643 | ||
33e95c63 | 644 | return ret; |
2f28d2ff AL |
645 | } |
646 | ||
647 | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, | |
be17f18b PB |
648 | const char *typename, |
649 | const char *file, int line, | |
650 | const char *func) | |
2f28d2ff | 651 | { |
fa131d94 PB |
652 | ObjectClass *ret; |
653 | ||
654 | trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)", | |
655 | typename, file, line, func); | |
2f28d2ff | 656 | |
03587328 AL |
657 | #ifdef CONFIG_QOM_CAST_DEBUG |
658 | int i; | |
659 | ||
9d6a3d58 | 660 | for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 661 | if (class->class_cast_cache[i] == typename) { |
03587328 AL |
662 | ret = class; |
663 | goto out; | |
664 | } | |
665 | } | |
666 | #else | |
9d6a3d58 | 667 | if (!class || !class->interfaces) { |
3556c233 PB |
668 | return class; |
669 | } | |
670 | #endif | |
671 | ||
fa131d94 | 672 | ret = object_class_dynamic_cast(class, typename); |
bf0fda34 | 673 | if (!ret && class) { |
be17f18b PB |
674 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
675 | file, line, func, class, typename); | |
2f28d2ff AL |
676 | abort(); |
677 | } | |
678 | ||
03587328 | 679 | #ifdef CONFIG_QOM_CAST_DEBUG |
9d6a3d58 | 680 | if (class && ret == class) { |
03587328 | 681 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 682 | class->class_cast_cache[i - 1] = class->class_cast_cache[i]; |
03587328 | 683 | } |
0ab4c94c | 684 | class->class_cast_cache[i - 1] = typename; |
03587328 AL |
685 | } |
686 | out: | |
687 | #endif | |
2f28d2ff AL |
688 | return ret; |
689 | } | |
690 | ||
691 | const char *object_get_typename(Object *obj) | |
692 | { | |
693 | return obj->class->type->name; | |
694 | } | |
695 | ||
696 | ObjectClass *object_get_class(Object *obj) | |
697 | { | |
698 | return obj->class; | |
699 | } | |
700 | ||
17862378 AF |
701 | bool object_class_is_abstract(ObjectClass *klass) |
702 | { | |
703 | return klass->type->abstract; | |
704 | } | |
705 | ||
2f28d2ff AL |
706 | const char *object_class_get_name(ObjectClass *klass) |
707 | { | |
708 | return klass->type->name; | |
709 | } | |
710 | ||
711 | ObjectClass *object_class_by_name(const char *typename) | |
712 | { | |
713 | TypeImpl *type = type_get_by_name(typename); | |
714 | ||
715 | if (!type) { | |
716 | return NULL; | |
717 | } | |
718 | ||
ac451033 | 719 | type_initialize(type); |
2f28d2ff AL |
720 | |
721 | return type->class; | |
722 | } | |
723 | ||
e7cce67f PB |
724 | ObjectClass *object_class_get_parent(ObjectClass *class) |
725 | { | |
726 | TypeImpl *type = type_get_parent(class->type); | |
727 | ||
728 | if (!type) { | |
729 | return NULL; | |
730 | } | |
731 | ||
732 | type_initialize(type); | |
733 | ||
734 | return type->class; | |
735 | } | |
736 | ||
2f28d2ff AL |
737 | typedef struct OCFData |
738 | { | |
739 | void (*fn)(ObjectClass *klass, void *opaque); | |
93c511a1 AL |
740 | const char *implements_type; |
741 | bool include_abstract; | |
2f28d2ff AL |
742 | void *opaque; |
743 | } OCFData; | |
744 | ||
745 | static void object_class_foreach_tramp(gpointer key, gpointer value, | |
746 | gpointer opaque) | |
747 | { | |
748 | OCFData *data = opaque; | |
749 | TypeImpl *type = value; | |
93c511a1 | 750 | ObjectClass *k; |
2f28d2ff | 751 | |
ac451033 | 752 | type_initialize(type); |
93c511a1 | 753 | k = type->class; |
2f28d2ff | 754 | |
93c511a1 AL |
755 | if (!data->include_abstract && type->abstract) { |
756 | return; | |
757 | } | |
758 | ||
759 | if (data->implements_type && | |
760 | !object_class_dynamic_cast(k, data->implements_type)) { | |
761 | return; | |
762 | } | |
763 | ||
764 | data->fn(k, data->opaque); | |
2f28d2ff AL |
765 | } |
766 | ||
767 | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), | |
93c511a1 | 768 | const char *implements_type, bool include_abstract, |
2f28d2ff AL |
769 | void *opaque) |
770 | { | |
93c511a1 | 771 | OCFData data = { fn, implements_type, include_abstract, opaque }; |
2f28d2ff | 772 | |
f54c19ca | 773 | enumerating_types = true; |
2f28d2ff | 774 | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
f54c19ca | 775 | enumerating_types = false; |
2f28d2ff | 776 | } |
57c9fafe | 777 | |
32efc535 PB |
778 | int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque), |
779 | void *opaque) | |
780 | { | |
8af734ca | 781 | ObjectProperty *prop, *next; |
32efc535 PB |
782 | int ret = 0; |
783 | ||
8af734ca | 784 | QTAILQ_FOREACH_SAFE(prop, &obj->properties, node, next) { |
32efc535 PB |
785 | if (object_property_is_child(prop)) { |
786 | ret = fn(prop->opaque, opaque); | |
787 | if (ret != 0) { | |
788 | break; | |
789 | } | |
790 | } | |
791 | } | |
792 | return ret; | |
793 | } | |
794 | ||
418ba9e5 AF |
795 | static void object_class_get_list_tramp(ObjectClass *klass, void *opaque) |
796 | { | |
797 | GSList **list = opaque; | |
798 | ||
799 | *list = g_slist_prepend(*list, klass); | |
800 | } | |
801 | ||
802 | GSList *object_class_get_list(const char *implements_type, | |
803 | bool include_abstract) | |
804 | { | |
805 | GSList *list = NULL; | |
806 | ||
807 | object_class_foreach(object_class_get_list_tramp, | |
808 | implements_type, include_abstract, &list); | |
809 | return list; | |
810 | } | |
811 | ||
57c9fafe AL |
812 | void object_ref(Object *obj) |
813 | { | |
8ffad850 PC |
814 | if (!obj) { |
815 | return; | |
816 | } | |
f08c03f3 | 817 | atomic_inc(&obj->ref); |
57c9fafe AL |
818 | } |
819 | ||
820 | void object_unref(Object *obj) | |
821 | { | |
8ffad850 PC |
822 | if (!obj) { |
823 | return; | |
824 | } | |
57c9fafe | 825 | g_assert(obj->ref > 0); |
57c9fafe AL |
826 | |
827 | /* parent always holds a reference to its children */ | |
f08c03f3 | 828 | if (atomic_fetch_dec(&obj->ref) == 1) { |
57c9fafe AL |
829 | object_finalize(obj); |
830 | } | |
831 | } | |
832 | ||
64607d08 PB |
833 | ObjectProperty * |
834 | object_property_add(Object *obj, const char *name, const char *type, | |
835 | ObjectPropertyAccessor *get, | |
836 | ObjectPropertyAccessor *set, | |
837 | ObjectPropertyRelease *release, | |
838 | void *opaque, Error **errp) | |
57c9fafe | 839 | { |
54852b03 | 840 | ObjectProperty *prop; |
33965904 PC |
841 | size_t name_len = strlen(name); |
842 | ||
843 | if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) { | |
844 | int i; | |
845 | ObjectProperty *ret; | |
846 | char *name_no_array = g_strdup(name); | |
847 | ||
848 | name_no_array[name_len - 3] = '\0'; | |
849 | for (i = 0; ; ++i) { | |
850 | char *full_name = g_strdup_printf("%s[%d]", name_no_array, i); | |
851 | ||
852 | ret = object_property_add(obj, full_name, type, get, set, | |
853 | release, opaque, NULL); | |
854 | g_free(full_name); | |
855 | if (ret) { | |
856 | break; | |
857 | } | |
858 | } | |
859 | g_free(name_no_array); | |
860 | return ret; | |
861 | } | |
54852b03 PM |
862 | |
863 | QTAILQ_FOREACH(prop, &obj->properties, node) { | |
864 | if (strcmp(prop->name, name) == 0) { | |
865 | error_setg(errp, "attempt to add duplicate property '%s'" | |
866 | " to object (type '%s')", name, | |
867 | object_get_typename(obj)); | |
64607d08 | 868 | return NULL; |
54852b03 PM |
869 | } |
870 | } | |
871 | ||
872 | prop = g_malloc0(sizeof(*prop)); | |
57c9fafe AL |
873 | |
874 | prop->name = g_strdup(name); | |
875 | prop->type = g_strdup(type); | |
876 | ||
877 | prop->get = get; | |
878 | prop->set = set; | |
879 | prop->release = release; | |
880 | prop->opaque = opaque; | |
881 | ||
882 | QTAILQ_INSERT_TAIL(&obj->properties, prop, node); | |
64607d08 | 883 | return prop; |
57c9fafe AL |
884 | } |
885 | ||
89bfe000 PB |
886 | ObjectProperty *object_property_find(Object *obj, const char *name, |
887 | Error **errp) | |
57c9fafe AL |
888 | { |
889 | ObjectProperty *prop; | |
890 | ||
891 | QTAILQ_FOREACH(prop, &obj->properties, node) { | |
892 | if (strcmp(prop->name, name) == 0) { | |
893 | return prop; | |
894 | } | |
895 | } | |
896 | ||
f231b88d | 897 | error_setg(errp, "Property '.%s' not found", name); |
57c9fafe AL |
898 | return NULL; |
899 | } | |
900 | ||
901 | void object_property_del(Object *obj, const char *name, Error **errp) | |
902 | { | |
89bfe000 | 903 | ObjectProperty *prop = object_property_find(obj, name, errp); |
0866aca1 | 904 | if (prop == NULL) { |
0866aca1 AL |
905 | return; |
906 | } | |
57c9fafe | 907 | |
0866aca1 AL |
908 | if (prop->release) { |
909 | prop->release(obj, name, prop->opaque); | |
910 | } | |
911 | ||
912 | QTAILQ_REMOVE(&obj->properties, prop, node); | |
57c9fafe AL |
913 | |
914 | g_free(prop->name); | |
915 | g_free(prop->type); | |
80742642 | 916 | g_free(prop->description); |
57c9fafe AL |
917 | g_free(prop); |
918 | } | |
919 | ||
920 | void object_property_get(Object *obj, Visitor *v, const char *name, | |
921 | Error **errp) | |
922 | { | |
89bfe000 | 923 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 924 | if (prop == NULL) { |
57c9fafe AL |
925 | return; |
926 | } | |
927 | ||
928 | if (!prop->get) { | |
c6bd8c70 | 929 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe AL |
930 | } else { |
931 | prop->get(obj, v, prop->opaque, name, errp); | |
932 | } | |
933 | } | |
934 | ||
935 | void object_property_set(Object *obj, Visitor *v, const char *name, | |
936 | Error **errp) | |
937 | { | |
89bfe000 | 938 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 939 | if (prop == NULL) { |
57c9fafe AL |
940 | return; |
941 | } | |
942 | ||
943 | if (!prop->set) { | |
c6bd8c70 | 944 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe AL |
945 | } else { |
946 | prop->set(obj, v, prop->opaque, name, errp); | |
947 | } | |
948 | } | |
949 | ||
7b7b7d18 PB |
950 | void object_property_set_str(Object *obj, const char *value, |
951 | const char *name, Error **errp) | |
952 | { | |
953 | QString *qstr = qstring_from_str(value); | |
954 | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); | |
955 | ||
956 | QDECREF(qstr); | |
957 | } | |
958 | ||
959 | char *object_property_get_str(Object *obj, const char *name, | |
960 | Error **errp) | |
961 | { | |
962 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
963 | QString *qstring; | |
964 | char *retval; | |
965 | ||
966 | if (!ret) { | |
967 | return NULL; | |
968 | } | |
969 | qstring = qobject_to_qstring(ret); | |
970 | if (!qstring) { | |
c6bd8c70 | 971 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string"); |
7b7b7d18 PB |
972 | retval = NULL; |
973 | } else { | |
974 | retval = g_strdup(qstring_get_str(qstring)); | |
975 | } | |
976 | ||
977 | QDECREF(qstring); | |
978 | return retval; | |
979 | } | |
980 | ||
1d9c5a12 PB |
981 | void object_property_set_link(Object *obj, Object *value, |
982 | const char *name, Error **errp) | |
983 | { | |
d3c49316 PC |
984 | if (value) { |
985 | gchar *path = object_get_canonical_path(value); | |
986 | object_property_set_str(obj, path, name, errp); | |
987 | g_free(path); | |
988 | } else { | |
989 | object_property_set_str(obj, "", name, errp); | |
990 | } | |
1d9c5a12 PB |
991 | } |
992 | ||
993 | Object *object_property_get_link(Object *obj, const char *name, | |
994 | Error **errp) | |
995 | { | |
996 | char *str = object_property_get_str(obj, name, errp); | |
997 | Object *target = NULL; | |
998 | ||
999 | if (str && *str) { | |
1000 | target = object_resolve_path(str, NULL); | |
1001 | if (!target) { | |
75158ebb MA |
1002 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1003 | "Device '%s' not found", str); | |
1d9c5a12 PB |
1004 | } |
1005 | } | |
1006 | ||
1007 | g_free(str); | |
1008 | return target; | |
1009 | } | |
1010 | ||
7b7b7d18 PB |
1011 | void object_property_set_bool(Object *obj, bool value, |
1012 | const char *name, Error **errp) | |
1013 | { | |
fc48ffc3 | 1014 | QBool *qbool = qbool_from_bool(value); |
7b7b7d18 PB |
1015 | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
1016 | ||
1017 | QDECREF(qbool); | |
1018 | } | |
1019 | ||
1020 | bool object_property_get_bool(Object *obj, const char *name, | |
1021 | Error **errp) | |
1022 | { | |
1023 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1024 | QBool *qbool; | |
1025 | bool retval; | |
1026 | ||
1027 | if (!ret) { | |
1028 | return false; | |
1029 | } | |
1030 | qbool = qobject_to_qbool(ret); | |
1031 | if (!qbool) { | |
c6bd8c70 | 1032 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean"); |
7b7b7d18 PB |
1033 | retval = false; |
1034 | } else { | |
fc48ffc3 | 1035 | retval = qbool_get_bool(qbool); |
7b7b7d18 PB |
1036 | } |
1037 | ||
1038 | QDECREF(qbool); | |
1039 | return retval; | |
1040 | } | |
1041 | ||
1042 | void object_property_set_int(Object *obj, int64_t value, | |
1043 | const char *name, Error **errp) | |
1044 | { | |
1045 | QInt *qint = qint_from_int(value); | |
1046 | object_property_set_qobject(obj, QOBJECT(qint), name, errp); | |
1047 | ||
1048 | QDECREF(qint); | |
1049 | } | |
1050 | ||
1051 | int64_t object_property_get_int(Object *obj, const char *name, | |
1052 | Error **errp) | |
1053 | { | |
1054 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1055 | QInt *qint; | |
1056 | int64_t retval; | |
1057 | ||
1058 | if (!ret) { | |
1059 | return -1; | |
1060 | } | |
1061 | qint = qobject_to_qint(ret); | |
1062 | if (!qint) { | |
c6bd8c70 | 1063 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int"); |
7b7b7d18 PB |
1064 | retval = -1; |
1065 | } else { | |
1066 | retval = qint_get_int(qint); | |
1067 | } | |
1068 | ||
1069 | QDECREF(qint); | |
1070 | return retval; | |
b2cd7dee PB |
1071 | } |
1072 | ||
a8e3fbed DB |
1073 | typedef struct EnumProperty { |
1074 | const char * const *strings; | |
1075 | int (*get)(Object *, Error **); | |
1076 | void (*set)(Object *, int, Error **); | |
1077 | } EnumProperty; | |
1078 | ||
1f21772d | 1079 | int object_property_get_enum(Object *obj, const char *name, |
a3590dac | 1080 | const char *typename, Error **errp) |
1f21772d HT |
1081 | { |
1082 | StringOutputVisitor *sov; | |
1083 | StringInputVisitor *siv; | |
976620ac | 1084 | char *str; |
1f21772d | 1085 | int ret; |
a3590dac DB |
1086 | ObjectProperty *prop = object_property_find(obj, name, errp); |
1087 | EnumProperty *enumprop; | |
1088 | ||
1089 | if (prop == NULL) { | |
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | if (!g_str_equal(prop->type, typename)) { | |
1094 | error_setg(errp, "Property %s on %s is not '%s' enum type", | |
1095 | name, object_class_get_name( | |
1096 | object_get_class(obj)), typename); | |
1097 | return 0; | |
1098 | } | |
1099 | ||
1100 | enumprop = prop->opaque; | |
1f21772d HT |
1101 | |
1102 | sov = string_output_visitor_new(false); | |
1103 | object_property_get(obj, string_output_get_visitor(sov), name, errp); | |
976620ac CF |
1104 | str = string_output_get_string(sov); |
1105 | siv = string_input_visitor_new(str); | |
1f21772d HT |
1106 | string_output_visitor_cleanup(sov); |
1107 | visit_type_enum(string_input_get_visitor(siv), | |
a3590dac | 1108 | &ret, enumprop->strings, NULL, name, errp); |
976620ac CF |
1109 | |
1110 | g_free(str); | |
1f21772d HT |
1111 | string_input_visitor_cleanup(siv); |
1112 | ||
1113 | return ret; | |
1114 | } | |
1115 | ||
1116 | void object_property_get_uint16List(Object *obj, const char *name, | |
1117 | uint16List **list, Error **errp) | |
1118 | { | |
1119 | StringOutputVisitor *ov; | |
1120 | StringInputVisitor *iv; | |
976620ac | 1121 | char *str; |
1f21772d HT |
1122 | |
1123 | ov = string_output_visitor_new(false); | |
1124 | object_property_get(obj, string_output_get_visitor(ov), | |
1125 | name, errp); | |
976620ac CF |
1126 | str = string_output_get_string(ov); |
1127 | iv = string_input_visitor_new(str); | |
1f21772d HT |
1128 | visit_type_uint16List(string_input_get_visitor(iv), |
1129 | list, NULL, errp); | |
976620ac CF |
1130 | |
1131 | g_free(str); | |
1f21772d HT |
1132 | string_output_visitor_cleanup(ov); |
1133 | string_input_visitor_cleanup(iv); | |
1134 | } | |
1135 | ||
b2cd7dee PB |
1136 | void object_property_parse(Object *obj, const char *string, |
1137 | const char *name, Error **errp) | |
1138 | { | |
1139 | StringInputVisitor *mi; | |
1140 | mi = string_input_visitor_new(string); | |
1141 | object_property_set(obj, string_input_get_visitor(mi), name, errp); | |
1142 | ||
1143 | string_input_visitor_cleanup(mi); | |
1144 | } | |
1145 | ||
0b7593e0 | 1146 | char *object_property_print(Object *obj, const char *name, bool human, |
b2cd7dee PB |
1147 | Error **errp) |
1148 | { | |
1149 | StringOutputVisitor *mo; | |
3a53009f GA |
1150 | char *string = NULL; |
1151 | Error *local_err = NULL; | |
b2cd7dee | 1152 | |
0b7593e0 | 1153 | mo = string_output_visitor_new(human); |
3a53009f GA |
1154 | object_property_get(obj, string_output_get_visitor(mo), name, &local_err); |
1155 | if (local_err) { | |
1156 | error_propagate(errp, local_err); | |
1157 | goto out; | |
1158 | } | |
1159 | ||
b2cd7dee | 1160 | string = string_output_get_string(mo); |
3a53009f GA |
1161 | |
1162 | out: | |
b2cd7dee PB |
1163 | string_output_visitor_cleanup(mo); |
1164 | return string; | |
7b7b7d18 PB |
1165 | } |
1166 | ||
57c9fafe AL |
1167 | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
1168 | { | |
89bfe000 | 1169 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1170 | if (prop == NULL) { |
57c9fafe AL |
1171 | return NULL; |
1172 | } | |
1173 | ||
1174 | return prop->type; | |
1175 | } | |
1176 | ||
1177 | Object *object_get_root(void) | |
1178 | { | |
8b45d447 | 1179 | static Object *root; |
57c9fafe | 1180 | |
8b45d447 AL |
1181 | if (!root) { |
1182 | root = object_new("container"); | |
57c9fafe AL |
1183 | } |
1184 | ||
8b45d447 | 1185 | return root; |
57c9fafe AL |
1186 | } |
1187 | ||
bc2256c4 DB |
1188 | Object *object_get_objects_root(void) |
1189 | { | |
1190 | return container_get(object_get_root(), "/objects"); | |
1191 | } | |
1192 | ||
57c9fafe AL |
1193 | static void object_get_child_property(Object *obj, Visitor *v, void *opaque, |
1194 | const char *name, Error **errp) | |
1195 | { | |
1196 | Object *child = opaque; | |
1197 | gchar *path; | |
1198 | ||
1199 | path = object_get_canonical_path(child); | |
1200 | visit_type_str(v, &path, name, errp); | |
1201 | g_free(path); | |
1202 | } | |
1203 | ||
64607d08 PB |
1204 | static Object *object_resolve_child_property(Object *parent, void *opaque, const gchar *part) |
1205 | { | |
1206 | return opaque; | |
1207 | } | |
1208 | ||
db85b575 AL |
1209 | static void object_finalize_child_property(Object *obj, const char *name, |
1210 | void *opaque) | |
1211 | { | |
1212 | Object *child = opaque; | |
1213 | ||
bffc687d PB |
1214 | if (child->class->unparent) { |
1215 | (child->class->unparent)(child); | |
1216 | } | |
1217 | child->parent = NULL; | |
db85b575 AL |
1218 | object_unref(child); |
1219 | } | |
1220 | ||
57c9fafe AL |
1221 | void object_property_add_child(Object *obj, const char *name, |
1222 | Object *child, Error **errp) | |
1223 | { | |
b0ed5e9f | 1224 | Error *local_err = NULL; |
57c9fafe | 1225 | gchar *type; |
64607d08 | 1226 | ObjectProperty *op; |
57c9fafe | 1227 | |
8faa2f85 PC |
1228 | if (child->parent != NULL) { |
1229 | error_setg(errp, "child object is already parented"); | |
1230 | return; | |
1231 | } | |
1232 | ||
57c9fafe AL |
1233 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
1234 | ||
64607d08 PB |
1235 | op = object_property_add(obj, name, type, object_get_child_property, NULL, |
1236 | object_finalize_child_property, child, &local_err); | |
b0ed5e9f PB |
1237 | if (local_err) { |
1238 | error_propagate(errp, local_err); | |
1239 | goto out; | |
1240 | } | |
64607d08 PB |
1241 | |
1242 | op->resolve = object_resolve_child_property; | |
57c9fafe | 1243 | object_ref(child); |
57c9fafe AL |
1244 | child->parent = obj; |
1245 | ||
b0ed5e9f | 1246 | out: |
57c9fafe AL |
1247 | g_free(type); |
1248 | } | |
1249 | ||
39f72ef9 SH |
1250 | void object_property_allow_set_link(Object *obj, const char *name, |
1251 | Object *val, Error **errp) | |
1252 | { | |
1253 | /* Allow the link to be set, always */ | |
1254 | } | |
1255 | ||
9561fda8 SH |
1256 | typedef struct { |
1257 | Object **child; | |
39f72ef9 | 1258 | void (*check)(Object *, const char *, Object *, Error **); |
9561fda8 SH |
1259 | ObjectPropertyLinkFlags flags; |
1260 | } LinkProperty; | |
1261 | ||
57c9fafe AL |
1262 | static void object_get_link_property(Object *obj, Visitor *v, void *opaque, |
1263 | const char *name, Error **errp) | |
1264 | { | |
9561fda8 SH |
1265 | LinkProperty *lprop = opaque; |
1266 | Object **child = lprop->child; | |
57c9fafe AL |
1267 | gchar *path; |
1268 | ||
1269 | if (*child) { | |
1270 | path = object_get_canonical_path(*child); | |
1271 | visit_type_str(v, &path, name, errp); | |
1272 | g_free(path); | |
1273 | } else { | |
1274 | path = (gchar *)""; | |
1275 | visit_type_str(v, &path, name, errp); | |
1276 | } | |
1277 | } | |
1278 | ||
f5ec6704 SH |
1279 | /* |
1280 | * object_resolve_link: | |
1281 | * | |
1282 | * Lookup an object and ensure its type matches the link property type. This | |
1283 | * is similar to object_resolve_path() except type verification against the | |
1284 | * link property is performed. | |
1285 | * | |
1286 | * Returns: The matched object or NULL on path lookup failures. | |
1287 | */ | |
1288 | static Object *object_resolve_link(Object *obj, const char *name, | |
1289 | const char *path, Error **errp) | |
1290 | { | |
1291 | const char *type; | |
1292 | gchar *target_type; | |
1293 | bool ambiguous = false; | |
1294 | Object *target; | |
1295 | ||
1296 | /* Go from link<FOO> to FOO. */ | |
1297 | type = object_property_get_type(obj, name, NULL); | |
1298 | target_type = g_strndup(&type[5], strlen(type) - 6); | |
1299 | target = object_resolve_path_type(path, target_type, &ambiguous); | |
1300 | ||
1301 | if (ambiguous) { | |
f231b88d CR |
1302 | error_set(errp, ERROR_CLASS_GENERIC_ERROR, |
1303 | "Path '%s' does not uniquely identify an object", path); | |
f5ec6704 SH |
1304 | } else if (!target) { |
1305 | target = object_resolve_path(path, &ambiguous); | |
1306 | if (target || ambiguous) { | |
c6bd8c70 | 1307 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
f5ec6704 | 1308 | } else { |
75158ebb MA |
1309 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1310 | "Device '%s' not found", path); | |
f5ec6704 SH |
1311 | } |
1312 | target = NULL; | |
1313 | } | |
1314 | g_free(target_type); | |
1315 | ||
1316 | return target; | |
1317 | } | |
1318 | ||
57c9fafe AL |
1319 | static void object_set_link_property(Object *obj, Visitor *v, void *opaque, |
1320 | const char *name, Error **errp) | |
1321 | { | |
c6aed983 | 1322 | Error *local_err = NULL; |
9561fda8 SH |
1323 | LinkProperty *prop = opaque; |
1324 | Object **child = prop->child; | |
c6aed983 SH |
1325 | Object *old_target = *child; |
1326 | Object *new_target = NULL; | |
1327 | char *path = NULL; | |
57c9fafe | 1328 | |
c6aed983 | 1329 | visit_type_str(v, &path, name, &local_err); |
57c9fafe | 1330 | |
c6aed983 SH |
1331 | if (!local_err && strcmp(path, "") != 0) { |
1332 | new_target = object_resolve_link(obj, name, path, &local_err); | |
57c9fafe AL |
1333 | } |
1334 | ||
1335 | g_free(path); | |
c6aed983 SH |
1336 | if (local_err) { |
1337 | error_propagate(errp, local_err); | |
1338 | return; | |
1339 | } | |
f0cdc966 | 1340 | |
39f72ef9 SH |
1341 | prop->check(obj, name, new_target, &local_err); |
1342 | if (local_err) { | |
1343 | error_propagate(errp, local_err); | |
1344 | return; | |
1345 | } | |
1346 | ||
8ffad850 | 1347 | object_ref(new_target); |
c6aed983 | 1348 | *child = new_target; |
8ffad850 | 1349 | object_unref(old_target); |
57c9fafe AL |
1350 | } |
1351 | ||
64607d08 PB |
1352 | static Object *object_resolve_link_property(Object *parent, void *opaque, const gchar *part) |
1353 | { | |
1354 | LinkProperty *lprop = opaque; | |
1355 | ||
1356 | return *lprop->child; | |
1357 | } | |
1358 | ||
9561fda8 SH |
1359 | static void object_release_link_property(Object *obj, const char *name, |
1360 | void *opaque) | |
1361 | { | |
1362 | LinkProperty *prop = opaque; | |
1363 | ||
1364 | if ((prop->flags & OBJ_PROP_LINK_UNREF_ON_RELEASE) && *prop->child) { | |
1365 | object_unref(*prop->child); | |
1366 | } | |
1367 | g_free(prop); | |
1368 | } | |
1369 | ||
57c9fafe AL |
1370 | void object_property_add_link(Object *obj, const char *name, |
1371 | const char *type, Object **child, | |
39f72ef9 SH |
1372 | void (*check)(Object *, const char *, |
1373 | Object *, Error **), | |
9561fda8 | 1374 | ObjectPropertyLinkFlags flags, |
57c9fafe AL |
1375 | Error **errp) |
1376 | { | |
9561fda8 SH |
1377 | Error *local_err = NULL; |
1378 | LinkProperty *prop = g_malloc(sizeof(*prop)); | |
57c9fafe | 1379 | gchar *full_type; |
64607d08 | 1380 | ObjectProperty *op; |
57c9fafe | 1381 | |
9561fda8 | 1382 | prop->child = child; |
39f72ef9 | 1383 | prop->check = check; |
9561fda8 SH |
1384 | prop->flags = flags; |
1385 | ||
57c9fafe AL |
1386 | full_type = g_strdup_printf("link<%s>", type); |
1387 | ||
64607d08 PB |
1388 | op = object_property_add(obj, name, full_type, |
1389 | object_get_link_property, | |
1390 | check ? object_set_link_property : NULL, | |
1391 | object_release_link_property, | |
1392 | prop, | |
1393 | &local_err); | |
9561fda8 SH |
1394 | if (local_err) { |
1395 | error_propagate(errp, local_err); | |
1396 | g_free(prop); | |
64607d08 | 1397 | goto out; |
9561fda8 | 1398 | } |
57c9fafe | 1399 | |
64607d08 PB |
1400 | op->resolve = object_resolve_link_property; |
1401 | ||
1402 | out: | |
57c9fafe AL |
1403 | g_free(full_type); |
1404 | } | |
1405 | ||
fb9e7e33 PB |
1406 | void object_property_add_const_link(Object *obj, const char *name, |
1407 | Object *target, Error **errp) | |
1408 | { | |
1409 | char *link_type; | |
1410 | ObjectProperty *op; | |
1411 | ||
1412 | link_type = g_strdup_printf("link<%s>", object_get_typename(target)); | |
1413 | op = object_property_add(obj, name, link_type, | |
1414 | object_get_child_property, NULL, | |
1415 | NULL, target, errp); | |
1416 | if (op != NULL) { | |
1417 | op->resolve = object_resolve_child_property; | |
1418 | } | |
1419 | g_free(link_type); | |
1420 | } | |
1421 | ||
11f590b1 SH |
1422 | gchar *object_get_canonical_path_component(Object *obj) |
1423 | { | |
1424 | ObjectProperty *prop = NULL; | |
1425 | ||
1426 | g_assert(obj); | |
1427 | g_assert(obj->parent != NULL); | |
1428 | ||
1429 | QTAILQ_FOREACH(prop, &obj->parent->properties, node) { | |
1430 | if (!object_property_is_child(prop)) { | |
1431 | continue; | |
1432 | } | |
1433 | ||
1434 | if (prop->opaque == obj) { | |
1435 | return g_strdup(prop->name); | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | /* obj had a parent but was not a child, should never happen */ | |
1440 | g_assert_not_reached(); | |
1441 | return NULL; | |
1442 | } | |
1443 | ||
57c9fafe AL |
1444 | gchar *object_get_canonical_path(Object *obj) |
1445 | { | |
1446 | Object *root = object_get_root(); | |
11f590b1 | 1447 | char *newpath, *path = NULL; |
57c9fafe AL |
1448 | |
1449 | while (obj != root) { | |
11f590b1 | 1450 | char *component = object_get_canonical_path_component(obj); |
57c9fafe | 1451 | |
11f590b1 SH |
1452 | if (path) { |
1453 | newpath = g_strdup_printf("%s/%s", component, path); | |
1454 | g_free(component); | |
1455 | g_free(path); | |
1456 | path = newpath; | |
1457 | } else { | |
1458 | path = component; | |
57c9fafe AL |
1459 | } |
1460 | ||
57c9fafe AL |
1461 | obj = obj->parent; |
1462 | } | |
1463 | ||
11f590b1 | 1464 | newpath = g_strdup_printf("/%s", path ? path : ""); |
57c9fafe AL |
1465 | g_free(path); |
1466 | ||
1467 | return newpath; | |
1468 | } | |
1469 | ||
3e84b483 | 1470 | Object *object_resolve_path_component(Object *parent, const gchar *part) |
a612b2a6 | 1471 | { |
89bfe000 | 1472 | ObjectProperty *prop = object_property_find(parent, part, NULL); |
a612b2a6 PB |
1473 | if (prop == NULL) { |
1474 | return NULL; | |
1475 | } | |
1476 | ||
64607d08 PB |
1477 | if (prop->resolve) { |
1478 | return prop->resolve(parent, prop->opaque, part); | |
a612b2a6 PB |
1479 | } else { |
1480 | return NULL; | |
1481 | } | |
1482 | } | |
1483 | ||
57c9fafe AL |
1484 | static Object *object_resolve_abs_path(Object *parent, |
1485 | gchar **parts, | |
02fe2db6 | 1486 | const char *typename, |
57c9fafe AL |
1487 | int index) |
1488 | { | |
57c9fafe AL |
1489 | Object *child; |
1490 | ||
1491 | if (parts[index] == NULL) { | |
02fe2db6 | 1492 | return object_dynamic_cast(parent, typename); |
57c9fafe AL |
1493 | } |
1494 | ||
1495 | if (strcmp(parts[index], "") == 0) { | |
02fe2db6 | 1496 | return object_resolve_abs_path(parent, parts, typename, index + 1); |
57c9fafe AL |
1497 | } |
1498 | ||
a612b2a6 | 1499 | child = object_resolve_path_component(parent, parts[index]); |
57c9fafe AL |
1500 | if (!child) { |
1501 | return NULL; | |
1502 | } | |
1503 | ||
02fe2db6 | 1504 | return object_resolve_abs_path(child, parts, typename, index + 1); |
57c9fafe AL |
1505 | } |
1506 | ||
1507 | static Object *object_resolve_partial_path(Object *parent, | |
1508 | gchar **parts, | |
02fe2db6 | 1509 | const char *typename, |
57c9fafe AL |
1510 | bool *ambiguous) |
1511 | { | |
1512 | Object *obj; | |
1513 | ObjectProperty *prop; | |
1514 | ||
02fe2db6 | 1515 | obj = object_resolve_abs_path(parent, parts, typename, 0); |
57c9fafe AL |
1516 | |
1517 | QTAILQ_FOREACH(prop, &parent->properties, node) { | |
1518 | Object *found; | |
1519 | ||
5d9d3f47 | 1520 | if (!object_property_is_child(prop)) { |
57c9fafe AL |
1521 | continue; |
1522 | } | |
1523 | ||
02fe2db6 PB |
1524 | found = object_resolve_partial_path(prop->opaque, parts, |
1525 | typename, ambiguous); | |
57c9fafe AL |
1526 | if (found) { |
1527 | if (obj) { | |
1528 | if (ambiguous) { | |
1529 | *ambiguous = true; | |
1530 | } | |
1531 | return NULL; | |
1532 | } | |
1533 | obj = found; | |
1534 | } | |
1535 | ||
1536 | if (ambiguous && *ambiguous) { | |
1537 | return NULL; | |
1538 | } | |
1539 | } | |
1540 | ||
1541 | return obj; | |
1542 | } | |
1543 | ||
02fe2db6 PB |
1544 | Object *object_resolve_path_type(const char *path, const char *typename, |
1545 | bool *ambiguous) | |
57c9fafe | 1546 | { |
57c9fafe AL |
1547 | Object *obj; |
1548 | gchar **parts; | |
1549 | ||
1550 | parts = g_strsplit(path, "/", 0); | |
2e1103f6 | 1551 | assert(parts); |
57c9fafe | 1552 | |
2e1103f6 | 1553 | if (parts[0] == NULL || strcmp(parts[0], "") != 0) { |
57c9fafe AL |
1554 | if (ambiguous) { |
1555 | *ambiguous = false; | |
1556 | } | |
02fe2db6 PB |
1557 | obj = object_resolve_partial_path(object_get_root(), parts, |
1558 | typename, ambiguous); | |
57c9fafe | 1559 | } else { |
02fe2db6 | 1560 | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1); |
57c9fafe AL |
1561 | } |
1562 | ||
1563 | g_strfreev(parts); | |
1564 | ||
1565 | return obj; | |
1566 | } | |
1567 | ||
02fe2db6 PB |
1568 | Object *object_resolve_path(const char *path, bool *ambiguous) |
1569 | { | |
1570 | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous); | |
1571 | } | |
1572 | ||
57c9fafe AL |
1573 | typedef struct StringProperty |
1574 | { | |
1575 | char *(*get)(Object *, Error **); | |
1576 | void (*set)(Object *, const char *, Error **); | |
1577 | } StringProperty; | |
1578 | ||
7b7b7d18 PB |
1579 | static void property_get_str(Object *obj, Visitor *v, void *opaque, |
1580 | const char *name, Error **errp) | |
57c9fafe AL |
1581 | { |
1582 | StringProperty *prop = opaque; | |
1583 | char *value; | |
1584 | ||
1585 | value = prop->get(obj, errp); | |
1586 | if (value) { | |
1587 | visit_type_str(v, &value, name, errp); | |
1588 | g_free(value); | |
1589 | } | |
1590 | } | |
1591 | ||
7b7b7d18 PB |
1592 | static void property_set_str(Object *obj, Visitor *v, void *opaque, |
1593 | const char *name, Error **errp) | |
57c9fafe AL |
1594 | { |
1595 | StringProperty *prop = opaque; | |
1596 | char *value; | |
1597 | Error *local_err = NULL; | |
1598 | ||
1599 | visit_type_str(v, &value, name, &local_err); | |
1600 | if (local_err) { | |
1601 | error_propagate(errp, local_err); | |
1602 | return; | |
1603 | } | |
1604 | ||
1605 | prop->set(obj, value, errp); | |
1606 | g_free(value); | |
1607 | } | |
1608 | ||
7b7b7d18 PB |
1609 | static void property_release_str(Object *obj, const char *name, |
1610 | void *opaque) | |
57c9fafe AL |
1611 | { |
1612 | StringProperty *prop = opaque; | |
1613 | g_free(prop); | |
1614 | } | |
1615 | ||
1616 | void object_property_add_str(Object *obj, const char *name, | |
1617 | char *(*get)(Object *, Error **), | |
1618 | void (*set)(Object *, const char *, Error **), | |
1619 | Error **errp) | |
1620 | { | |
a01aedc8 | 1621 | Error *local_err = NULL; |
57c9fafe AL |
1622 | StringProperty *prop = g_malloc0(sizeof(*prop)); |
1623 | ||
1624 | prop->get = get; | |
1625 | prop->set = set; | |
1626 | ||
1627 | object_property_add(obj, name, "string", | |
7b7b7d18 PB |
1628 | get ? property_get_str : NULL, |
1629 | set ? property_set_str : NULL, | |
1630 | property_release_str, | |
a01aedc8 SH |
1631 | prop, &local_err); |
1632 | if (local_err) { | |
1633 | error_propagate(errp, local_err); | |
1634 | g_free(prop); | |
1635 | } | |
57c9fafe | 1636 | } |
745549c8 | 1637 | |
0e558843 AL |
1638 | typedef struct BoolProperty |
1639 | { | |
1640 | bool (*get)(Object *, Error **); | |
1641 | void (*set)(Object *, bool, Error **); | |
1642 | } BoolProperty; | |
1643 | ||
1644 | static void property_get_bool(Object *obj, Visitor *v, void *opaque, | |
1645 | const char *name, Error **errp) | |
1646 | { | |
1647 | BoolProperty *prop = opaque; | |
1648 | bool value; | |
1649 | ||
1650 | value = prop->get(obj, errp); | |
1651 | visit_type_bool(v, &value, name, errp); | |
1652 | } | |
1653 | ||
1654 | static void property_set_bool(Object *obj, Visitor *v, void *opaque, | |
1655 | const char *name, Error **errp) | |
1656 | { | |
1657 | BoolProperty *prop = opaque; | |
1658 | bool value; | |
1659 | Error *local_err = NULL; | |
1660 | ||
1661 | visit_type_bool(v, &value, name, &local_err); | |
1662 | if (local_err) { | |
1663 | error_propagate(errp, local_err); | |
1664 | return; | |
1665 | } | |
1666 | ||
1667 | prop->set(obj, value, errp); | |
1668 | } | |
1669 | ||
1670 | static void property_release_bool(Object *obj, const char *name, | |
1671 | void *opaque) | |
1672 | { | |
1673 | BoolProperty *prop = opaque; | |
1674 | g_free(prop); | |
1675 | } | |
1676 | ||
1677 | void object_property_add_bool(Object *obj, const char *name, | |
1678 | bool (*get)(Object *, Error **), | |
1679 | void (*set)(Object *, bool, Error **), | |
1680 | Error **errp) | |
1681 | { | |
a01aedc8 | 1682 | Error *local_err = NULL; |
0e558843 AL |
1683 | BoolProperty *prop = g_malloc0(sizeof(*prop)); |
1684 | ||
1685 | prop->get = get; | |
1686 | prop->set = set; | |
1687 | ||
1688 | object_property_add(obj, name, "bool", | |
1689 | get ? property_get_bool : NULL, | |
1690 | set ? property_set_bool : NULL, | |
1691 | property_release_bool, | |
a01aedc8 SH |
1692 | prop, &local_err); |
1693 | if (local_err) { | |
1694 | error_propagate(errp, local_err); | |
1695 | g_free(prop); | |
1696 | } | |
0e558843 AL |
1697 | } |
1698 | ||
a8e3fbed DB |
1699 | static void property_get_enum(Object *obj, Visitor *v, void *opaque, |
1700 | const char *name, Error **errp) | |
1701 | { | |
1702 | EnumProperty *prop = opaque; | |
1703 | int value; | |
1704 | ||
1705 | value = prop->get(obj, errp); | |
1706 | visit_type_enum(v, &value, prop->strings, NULL, name, errp); | |
1707 | } | |
1708 | ||
1709 | static void property_set_enum(Object *obj, Visitor *v, void *opaque, | |
1710 | const char *name, Error **errp) | |
1711 | { | |
1712 | EnumProperty *prop = opaque; | |
1713 | int value; | |
1714 | ||
1715 | visit_type_enum(v, &value, prop->strings, NULL, name, errp); | |
1716 | prop->set(obj, value, errp); | |
1717 | } | |
1718 | ||
1719 | static void property_release_enum(Object *obj, const char *name, | |
1720 | void *opaque) | |
1721 | { | |
1722 | EnumProperty *prop = opaque; | |
1723 | g_free(prop); | |
1724 | } | |
1725 | ||
1726 | void object_property_add_enum(Object *obj, const char *name, | |
1727 | const char *typename, | |
1728 | const char * const *strings, | |
1729 | int (*get)(Object *, Error **), | |
1730 | void (*set)(Object *, int, Error **), | |
1731 | Error **errp) | |
1732 | { | |
1733 | Error *local_err = NULL; | |
1734 | EnumProperty *prop = g_malloc(sizeof(*prop)); | |
1735 | ||
1736 | prop->strings = strings; | |
1737 | prop->get = get; | |
1738 | prop->set = set; | |
1739 | ||
1740 | object_property_add(obj, name, typename, | |
1741 | get ? property_get_enum : NULL, | |
1742 | set ? property_set_enum : NULL, | |
1743 | property_release_enum, | |
1744 | prop, &local_err); | |
1745 | if (local_err) { | |
1746 | error_propagate(errp, local_err); | |
1747 | g_free(prop); | |
1748 | } | |
1749 | } | |
1750 | ||
8e099d14 DG |
1751 | typedef struct TMProperty { |
1752 | void (*get)(Object *, struct tm *, Error **); | |
1753 | } TMProperty; | |
1754 | ||
1755 | static void property_get_tm(Object *obj, Visitor *v, void *opaque, | |
1756 | const char *name, Error **errp) | |
1757 | { | |
1758 | TMProperty *prop = opaque; | |
1759 | Error *err = NULL; | |
1760 | struct tm value; | |
1761 | ||
1762 | prop->get(obj, &value, &err); | |
1763 | if (err) { | |
1764 | goto out; | |
1765 | } | |
1766 | ||
1767 | visit_start_struct(v, NULL, "struct tm", name, 0, &err); | |
1768 | if (err) { | |
1769 | goto out; | |
1770 | } | |
1771 | visit_type_int32(v, &value.tm_year, "tm_year", &err); | |
1772 | if (err) { | |
1773 | goto out_end; | |
1774 | } | |
1775 | visit_type_int32(v, &value.tm_mon, "tm_mon", &err); | |
1776 | if (err) { | |
1777 | goto out_end; | |
1778 | } | |
1779 | visit_type_int32(v, &value.tm_mday, "tm_mday", &err); | |
1780 | if (err) { | |
1781 | goto out_end; | |
1782 | } | |
1783 | visit_type_int32(v, &value.tm_hour, "tm_hour", &err); | |
1784 | if (err) { | |
1785 | goto out_end; | |
1786 | } | |
1787 | visit_type_int32(v, &value.tm_min, "tm_min", &err); | |
1788 | if (err) { | |
1789 | goto out_end; | |
1790 | } | |
1791 | visit_type_int32(v, &value.tm_sec, "tm_sec", &err); | |
1792 | if (err) { | |
1793 | goto out_end; | |
1794 | } | |
1795 | out_end: | |
1796 | error_propagate(errp, err); | |
1797 | err = NULL; | |
1798 | visit_end_struct(v, errp); | |
1799 | out: | |
1800 | error_propagate(errp, err); | |
1801 | ||
1802 | } | |
1803 | ||
1804 | static void property_release_tm(Object *obj, const char *name, | |
1805 | void *opaque) | |
1806 | { | |
1807 | TMProperty *prop = opaque; | |
1808 | g_free(prop); | |
1809 | } | |
1810 | ||
1811 | void object_property_add_tm(Object *obj, const char *name, | |
1812 | void (*get)(Object *, struct tm *, Error **), | |
1813 | Error **errp) | |
1814 | { | |
1815 | Error *local_err = NULL; | |
1816 | TMProperty *prop = g_malloc0(sizeof(*prop)); | |
1817 | ||
1818 | prop->get = get; | |
1819 | ||
1820 | object_property_add(obj, name, "struct tm", | |
1821 | get ? property_get_tm : NULL, NULL, | |
1822 | property_release_tm, | |
1823 | prop, &local_err); | |
1824 | if (local_err) { | |
1825 | error_propagate(errp, local_err); | |
1826 | g_free(prop); | |
1827 | } | |
1828 | } | |
1829 | ||
2f262e06 PB |
1830 | static char *qdev_get_type(Object *obj, Error **errp) |
1831 | { | |
1832 | return g_strdup(object_get_typename(obj)); | |
1833 | } | |
1834 | ||
e732ea63 MT |
1835 | static void property_get_uint8_ptr(Object *obj, Visitor *v, |
1836 | void *opaque, const char *name, | |
1837 | Error **errp) | |
1838 | { | |
1839 | uint8_t value = *(uint8_t *)opaque; | |
1840 | visit_type_uint8(v, &value, name, errp); | |
1841 | } | |
1842 | ||
1843 | static void property_get_uint16_ptr(Object *obj, Visitor *v, | |
1844 | void *opaque, const char *name, | |
1845 | Error **errp) | |
1846 | { | |
1847 | uint16_t value = *(uint16_t *)opaque; | |
1848 | visit_type_uint16(v, &value, name, errp); | |
1849 | } | |
1850 | ||
1851 | static void property_get_uint32_ptr(Object *obj, Visitor *v, | |
1852 | void *opaque, const char *name, | |
1853 | Error **errp) | |
1854 | { | |
1855 | uint32_t value = *(uint32_t *)opaque; | |
1856 | visit_type_uint32(v, &value, name, errp); | |
1857 | } | |
1858 | ||
1859 | static void property_get_uint64_ptr(Object *obj, Visitor *v, | |
1860 | void *opaque, const char *name, | |
1861 | Error **errp) | |
1862 | { | |
1863 | uint64_t value = *(uint64_t *)opaque; | |
1864 | visit_type_uint64(v, &value, name, errp); | |
1865 | } | |
1866 | ||
1867 | void object_property_add_uint8_ptr(Object *obj, const char *name, | |
1868 | const uint8_t *v, Error **errp) | |
1869 | { | |
1870 | object_property_add(obj, name, "uint8", property_get_uint8_ptr, | |
1871 | NULL, NULL, (void *)v, errp); | |
1872 | } | |
1873 | ||
1874 | void object_property_add_uint16_ptr(Object *obj, const char *name, | |
1875 | const uint16_t *v, Error **errp) | |
1876 | { | |
1877 | object_property_add(obj, name, "uint16", property_get_uint16_ptr, | |
1878 | NULL, NULL, (void *)v, errp); | |
1879 | } | |
1880 | ||
1881 | void object_property_add_uint32_ptr(Object *obj, const char *name, | |
1882 | const uint32_t *v, Error **errp) | |
1883 | { | |
1884 | object_property_add(obj, name, "uint32", property_get_uint32_ptr, | |
1885 | NULL, NULL, (void *)v, errp); | |
1886 | } | |
1887 | ||
1888 | void object_property_add_uint64_ptr(Object *obj, const char *name, | |
1889 | const uint64_t *v, Error **errp) | |
1890 | { | |
1891 | object_property_add(obj, name, "uint64", property_get_uint64_ptr, | |
1892 | NULL, NULL, (void *)v, errp); | |
1893 | } | |
1894 | ||
ef7c7ff6 SH |
1895 | typedef struct { |
1896 | Object *target_obj; | |
1590d266 | 1897 | char *target_name; |
ef7c7ff6 SH |
1898 | } AliasProperty; |
1899 | ||
1900 | static void property_get_alias(Object *obj, struct Visitor *v, void *opaque, | |
1901 | const char *name, Error **errp) | |
1902 | { | |
1903 | AliasProperty *prop = opaque; | |
1904 | ||
1905 | object_property_get(prop->target_obj, v, prop->target_name, errp); | |
1906 | } | |
1907 | ||
1908 | static void property_set_alias(Object *obj, struct Visitor *v, void *opaque, | |
1909 | const char *name, Error **errp) | |
1910 | { | |
1911 | AliasProperty *prop = opaque; | |
1912 | ||
1913 | object_property_set(prop->target_obj, v, prop->target_name, errp); | |
1914 | } | |
1915 | ||
64607d08 PB |
1916 | static Object *property_resolve_alias(Object *obj, void *opaque, |
1917 | const gchar *part) | |
1918 | { | |
1919 | AliasProperty *prop = opaque; | |
1920 | ||
1921 | return object_resolve_path_component(prop->target_obj, prop->target_name); | |
1922 | } | |
1923 | ||
ef7c7ff6 SH |
1924 | static void property_release_alias(Object *obj, const char *name, void *opaque) |
1925 | { | |
1926 | AliasProperty *prop = opaque; | |
1927 | ||
1590d266 | 1928 | g_free(prop->target_name); |
ef7c7ff6 SH |
1929 | g_free(prop); |
1930 | } | |
1931 | ||
1932 | void object_property_add_alias(Object *obj, const char *name, | |
1933 | Object *target_obj, const char *target_name, | |
1934 | Error **errp) | |
1935 | { | |
1936 | AliasProperty *prop; | |
64607d08 | 1937 | ObjectProperty *op; |
ef7c7ff6 | 1938 | ObjectProperty *target_prop; |
d190698e | 1939 | gchar *prop_type; |
8ae9a9ef | 1940 | Error *local_err = NULL; |
ef7c7ff6 SH |
1941 | |
1942 | target_prop = object_property_find(target_obj, target_name, errp); | |
1943 | if (!target_prop) { | |
1944 | return; | |
1945 | } | |
1946 | ||
d190698e PB |
1947 | if (object_property_is_child(target_prop)) { |
1948 | prop_type = g_strdup_printf("link%s", | |
1949 | target_prop->type + strlen("child")); | |
1950 | } else { | |
1951 | prop_type = g_strdup(target_prop->type); | |
1952 | } | |
1953 | ||
ef7c7ff6 SH |
1954 | prop = g_malloc(sizeof(*prop)); |
1955 | prop->target_obj = target_obj; | |
1590d266 | 1956 | prop->target_name = g_strdup(target_name); |
ef7c7ff6 | 1957 | |
d190698e | 1958 | op = object_property_add(obj, name, prop_type, |
64607d08 PB |
1959 | property_get_alias, |
1960 | property_set_alias, | |
1961 | property_release_alias, | |
8ae9a9ef GA |
1962 | prop, &local_err); |
1963 | if (local_err) { | |
1964 | error_propagate(errp, local_err); | |
1965 | g_free(prop); | |
1966 | goto out; | |
1967 | } | |
64607d08 | 1968 | op->resolve = property_resolve_alias; |
d190698e | 1969 | |
a18bb417 | 1970 | object_property_set_description(obj, op->name, |
80742642 GA |
1971 | target_prop->description, |
1972 | &error_abort); | |
1973 | ||
8ae9a9ef | 1974 | out: |
d190698e | 1975 | g_free(prop_type); |
ef7c7ff6 SH |
1976 | } |
1977 | ||
80742642 GA |
1978 | void object_property_set_description(Object *obj, const char *name, |
1979 | const char *description, Error **errp) | |
1980 | { | |
1981 | ObjectProperty *op; | |
1982 | ||
1983 | op = object_property_find(obj, name, errp); | |
1984 | if (!op) { | |
1985 | return; | |
1986 | } | |
1987 | ||
1988 | g_free(op->description); | |
1989 | op->description = g_strdup(description); | |
1990 | } | |
1991 | ||
2f262e06 PB |
1992 | static void object_instance_init(Object *obj) |
1993 | { | |
1994 | object_property_add_str(obj, "type", qdev_get_type, NULL, NULL); | |
1995 | } | |
1996 | ||
745549c8 PB |
1997 | static void register_types(void) |
1998 | { | |
1999 | static TypeInfo interface_info = { | |
2000 | .name = TYPE_INTERFACE, | |
33e95c63 | 2001 | .class_size = sizeof(InterfaceClass), |
745549c8 PB |
2002 | .abstract = true, |
2003 | }; | |
2004 | ||
2005 | static TypeInfo object_info = { | |
2006 | .name = TYPE_OBJECT, | |
2007 | .instance_size = sizeof(Object), | |
2f262e06 | 2008 | .instance_init = object_instance_init, |
745549c8 PB |
2009 | .abstract = true, |
2010 | }; | |
2011 | ||
049cb3cf PB |
2012 | type_interface = type_register_internal(&interface_info); |
2013 | type_register_internal(&object_info); | |
745549c8 PB |
2014 | } |
2015 | ||
2016 | type_init(register_types) |