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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 | ||
a00c9482 | 70 | struct ObjectPropertyIterator { |
b604a854 | 71 | GHashTableIter iter; |
a00c9482 DB |
72 | }; |
73 | ||
9970bd88 PB |
74 | static Type type_interface; |
75 | ||
2f28d2ff AL |
76 | static GHashTable *type_table_get(void) |
77 | { | |
78 | static GHashTable *type_table; | |
79 | ||
80 | if (type_table == NULL) { | |
81 | type_table = g_hash_table_new(g_str_hash, g_str_equal); | |
82 | } | |
83 | ||
84 | return type_table; | |
85 | } | |
86 | ||
f54c19ca HP |
87 | static bool enumerating_types; |
88 | ||
2f28d2ff AL |
89 | static void type_table_add(TypeImpl *ti) |
90 | { | |
f54c19ca | 91 | assert(!enumerating_types); |
2f28d2ff AL |
92 | g_hash_table_insert(type_table_get(), (void *)ti->name, ti); |
93 | } | |
94 | ||
95 | static TypeImpl *type_table_lookup(const char *name) | |
96 | { | |
97 | return g_hash_table_lookup(type_table_get(), name); | |
98 | } | |
99 | ||
b061dc41 | 100 | static TypeImpl *type_new(const TypeInfo *info) |
2f28d2ff AL |
101 | { |
102 | TypeImpl *ti = g_malloc0(sizeof(*ti)); | |
33e95c63 | 103 | int i; |
2f28d2ff AL |
104 | |
105 | g_assert(info->name != NULL); | |
106 | ||
73093354 AL |
107 | if (type_table_lookup(info->name) != NULL) { |
108 | fprintf(stderr, "Registering `%s' which already exists\n", info->name); | |
109 | abort(); | |
110 | } | |
111 | ||
2f28d2ff AL |
112 | ti->name = g_strdup(info->name); |
113 | ti->parent = g_strdup(info->parent); | |
114 | ||
115 | ti->class_size = info->class_size; | |
116 | ti->instance_size = info->instance_size; | |
117 | ||
118 | ti->class_init = info->class_init; | |
3b50e311 | 119 | ti->class_base_init = info->class_base_init; |
2f28d2ff AL |
120 | ti->class_finalize = info->class_finalize; |
121 | ti->class_data = info->class_data; | |
122 | ||
123 | ti->instance_init = info->instance_init; | |
8231c2dd | 124 | ti->instance_post_init = info->instance_post_init; |
2f28d2ff AL |
125 | ti->instance_finalize = info->instance_finalize; |
126 | ||
127 | ti->abstract = info->abstract; | |
128 | ||
33e95c63 AL |
129 | for (i = 0; info->interfaces && info->interfaces[i].type; i++) { |
130 | ti->interfaces[i].typename = g_strdup(info->interfaces[i].type); | |
2f28d2ff | 131 | } |
33e95c63 | 132 | ti->num_interfaces = i; |
2f28d2ff | 133 | |
b061dc41 PB |
134 | return ti; |
135 | } | |
2f28d2ff | 136 | |
b061dc41 PB |
137 | static TypeImpl *type_register_internal(const TypeInfo *info) |
138 | { | |
139 | TypeImpl *ti; | |
140 | ti = type_new(info); | |
141 | ||
142 | type_table_add(ti); | |
2f28d2ff AL |
143 | return ti; |
144 | } | |
145 | ||
049cb3cf PB |
146 | TypeImpl *type_register(const TypeInfo *info) |
147 | { | |
148 | assert(info->parent); | |
149 | return type_register_internal(info); | |
150 | } | |
151 | ||
2f28d2ff AL |
152 | TypeImpl *type_register_static(const TypeInfo *info) |
153 | { | |
154 | return type_register(info); | |
155 | } | |
156 | ||
157 | static TypeImpl *type_get_by_name(const char *name) | |
158 | { | |
159 | if (name == NULL) { | |
160 | return NULL; | |
161 | } | |
162 | ||
163 | return type_table_lookup(name); | |
164 | } | |
165 | ||
166 | static TypeImpl *type_get_parent(TypeImpl *type) | |
167 | { | |
168 | if (!type->parent_type && type->parent) { | |
169 | type->parent_type = type_get_by_name(type->parent); | |
170 | g_assert(type->parent_type != NULL); | |
171 | } | |
172 | ||
173 | return type->parent_type; | |
174 | } | |
175 | ||
176 | static bool type_has_parent(TypeImpl *type) | |
177 | { | |
178 | return (type->parent != NULL); | |
179 | } | |
180 | ||
181 | static size_t type_class_get_size(TypeImpl *ti) | |
182 | { | |
183 | if (ti->class_size) { | |
184 | return ti->class_size; | |
185 | } | |
186 | ||
187 | if (type_has_parent(ti)) { | |
188 | return type_class_get_size(type_get_parent(ti)); | |
189 | } | |
190 | ||
191 | return sizeof(ObjectClass); | |
192 | } | |
193 | ||
aca59af6 IM |
194 | static size_t type_object_get_size(TypeImpl *ti) |
195 | { | |
196 | if (ti->instance_size) { | |
197 | return ti->instance_size; | |
198 | } | |
199 | ||
200 | if (type_has_parent(ti)) { | |
201 | return type_object_get_size(type_get_parent(ti)); | |
202 | } | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
33e95c63 | 207 | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
2f28d2ff | 208 | { |
33e95c63 AL |
209 | assert(target_type); |
210 | ||
b30d8054 | 211 | /* Check if target_type is a direct ancestor of type */ |
33e95c63 AL |
212 | while (type) { |
213 | if (type == target_type) { | |
214 | return true; | |
215 | } | |
2f28d2ff | 216 | |
33e95c63 AL |
217 | type = type_get_parent(type); |
218 | } | |
219 | ||
220 | return false; | |
221 | } | |
222 | ||
223 | static void type_initialize(TypeImpl *ti); | |
224 | ||
b061dc41 PB |
225 | static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type, |
226 | TypeImpl *parent_type) | |
33e95c63 AL |
227 | { |
228 | InterfaceClass *new_iface; | |
229 | TypeInfo info = { }; | |
230 | TypeImpl *iface_impl; | |
231 | ||
b061dc41 PB |
232 | info.parent = parent_type->name; |
233 | info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name); | |
33e95c63 AL |
234 | info.abstract = true; |
235 | ||
b061dc41 PB |
236 | iface_impl = type_new(&info); |
237 | iface_impl->parent_type = parent_type; | |
33e95c63 AL |
238 | type_initialize(iface_impl); |
239 | g_free((char *)info.name); | |
240 | ||
241 | new_iface = (InterfaceClass *)iface_impl->class; | |
242 | new_iface->concrete_class = ti->class; | |
b061dc41 | 243 | new_iface->interface_type = interface_type; |
33e95c63 AL |
244 | |
245 | ti->class->interfaces = g_slist_append(ti->class->interfaces, | |
246 | iface_impl->class); | |
2f28d2ff AL |
247 | } |
248 | ||
ac451033 | 249 | static void type_initialize(TypeImpl *ti) |
2f28d2ff | 250 | { |
745549c8 | 251 | TypeImpl *parent; |
2f28d2ff AL |
252 | |
253 | if (ti->class) { | |
254 | return; | |
255 | } | |
256 | ||
257 | ti->class_size = type_class_get_size(ti); | |
aca59af6 | 258 | ti->instance_size = type_object_get_size(ti); |
2f28d2ff AL |
259 | |
260 | ti->class = g_malloc0(ti->class_size); | |
2f28d2ff | 261 | |
745549c8 PB |
262 | parent = type_get_parent(ti); |
263 | if (parent) { | |
ac451033 | 264 | type_initialize(parent); |
33e95c63 AL |
265 | GSList *e; |
266 | int i; | |
2f28d2ff | 267 | |
2f28d2ff | 268 | g_assert(parent->class_size <= ti->class_size); |
745549c8 | 269 | memcpy(ti->class, parent->class, parent->class_size); |
3e407de4 | 270 | ti->class->interfaces = NULL; |
33e95c63 AL |
271 | |
272 | for (e = parent->class->interfaces; e; e = e->next) { | |
b061dc41 PB |
273 | InterfaceClass *iface = e->data; |
274 | ObjectClass *klass = OBJECT_CLASS(iface); | |
275 | ||
276 | type_initialize_interface(ti, iface->interface_type, klass->type); | |
33e95c63 AL |
277 | } |
278 | ||
279 | for (i = 0; i < ti->num_interfaces; i++) { | |
280 | TypeImpl *t = type_get_by_name(ti->interfaces[i].typename); | |
281 | for (e = ti->class->interfaces; e; e = e->next) { | |
282 | TypeImpl *target_type = OBJECT_CLASS(e->data)->type; | |
283 | ||
284 | if (type_is_ancestor(target_type, t)) { | |
285 | break; | |
286 | } | |
287 | } | |
288 | ||
289 | if (e) { | |
290 | continue; | |
291 | } | |
292 | ||
b061dc41 | 293 | type_initialize_interface(ti, t, t); |
33e95c63 | 294 | } |
745549c8 | 295 | } |
2f28d2ff | 296 | |
745549c8 | 297 | ti->class->type = ti; |
3b50e311 | 298 | |
745549c8 PB |
299 | while (parent) { |
300 | if (parent->class_base_init) { | |
301 | parent->class_base_init(ti->class, ti->class_data); | |
3b50e311 | 302 | } |
745549c8 | 303 | parent = type_get_parent(parent); |
2f28d2ff AL |
304 | } |
305 | ||
2f28d2ff AL |
306 | if (ti->class_init) { |
307 | ti->class_init(ti->class, ti->class_data); | |
308 | } | |
2f28d2ff AL |
309 | } |
310 | ||
311 | static void object_init_with_type(Object *obj, TypeImpl *ti) | |
312 | { | |
2f28d2ff AL |
313 | if (type_has_parent(ti)) { |
314 | object_init_with_type(obj, type_get_parent(ti)); | |
315 | } | |
316 | ||
2f28d2ff AL |
317 | if (ti->instance_init) { |
318 | ti->instance_init(obj); | |
319 | } | |
320 | } | |
321 | ||
8231c2dd EH |
322 | static void object_post_init_with_type(Object *obj, TypeImpl *ti) |
323 | { | |
324 | if (ti->instance_post_init) { | |
325 | ti->instance_post_init(obj); | |
326 | } | |
327 | ||
328 | if (type_has_parent(ti)) { | |
329 | object_post_init_with_type(obj, type_get_parent(ti)); | |
330 | } | |
331 | } | |
332 | ||
b604a854 PF |
333 | static void object_property_free(gpointer data) |
334 | { | |
335 | ObjectProperty *prop = data; | |
336 | ||
337 | g_free(prop->name); | |
338 | g_free(prop->type); | |
339 | g_free(prop->description); | |
340 | g_free(prop); | |
341 | } | |
342 | ||
5b9237f6 | 343 | void object_initialize_with_type(void *data, size_t size, TypeImpl *type) |
2f28d2ff AL |
344 | { |
345 | Object *obj = data; | |
346 | ||
347 | g_assert(type != NULL); | |
ac451033 | 348 | type_initialize(type); |
aca59af6 IM |
349 | |
350 | g_assert(type->instance_size >= sizeof(Object)); | |
2f28d2ff | 351 | g_assert(type->abstract == false); |
5b9237f6 | 352 | g_assert(size >= type->instance_size); |
2f28d2ff AL |
353 | |
354 | memset(obj, 0, type->instance_size); | |
355 | obj->class = type->class; | |
764b6312 | 356 | object_ref(obj); |
b604a854 PF |
357 | obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal, |
358 | NULL, object_property_free); | |
2f28d2ff | 359 | object_init_with_type(obj, type); |
8231c2dd | 360 | object_post_init_with_type(obj, type); |
2f28d2ff AL |
361 | } |
362 | ||
213f0c4f | 363 | void object_initialize(void *data, size_t size, const char *typename) |
2f28d2ff AL |
364 | { |
365 | TypeImpl *type = type_get_by_name(typename); | |
366 | ||
5b9237f6 | 367 | object_initialize_with_type(data, size, type); |
2f28d2ff AL |
368 | } |
369 | ||
5d9d3f47 AF |
370 | static inline bool object_property_is_child(ObjectProperty *prop) |
371 | { | |
372 | return strstart(prop->type, "child<", NULL); | |
373 | } | |
374 | ||
57c9fafe AL |
375 | static void object_property_del_all(Object *obj) |
376 | { | |
b604a854 PF |
377 | ObjectProperty *prop; |
378 | GHashTableIter iter; | |
379 | gpointer key, value; | |
380 | bool released; | |
381 | ||
382 | do { | |
383 | released = false; | |
384 | g_hash_table_iter_init(&iter, obj->properties); | |
385 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
386 | prop = value; | |
387 | if (prop->release) { | |
388 | prop->release(obj, prop->name, prop->opaque); | |
389 | prop->release = NULL; | |
390 | released = true; | |
391 | break; | |
392 | } | |
393 | g_hash_table_iter_remove(&iter); | |
57c9fafe | 394 | } |
b604a854 | 395 | } while (released); |
57c9fafe | 396 | |
b604a854 | 397 | g_hash_table_unref(obj->properties); |
57c9fafe AL |
398 | } |
399 | ||
400 | static void object_property_del_child(Object *obj, Object *child, Error **errp) | |
401 | { | |
402 | ObjectProperty *prop; | |
b604a854 PF |
403 | GHashTableIter iter; |
404 | gpointer key, value; | |
57c9fafe | 405 | |
b604a854 PF |
406 | g_hash_table_iter_init(&iter, obj->properties); |
407 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
408 | prop = value; | |
409 | if (object_property_is_child(prop) && prop->opaque == child) { | |
410 | if (prop->release) { | |
411 | prop->release(obj, prop->name, prop->opaque); | |
412 | prop->release = NULL; | |
413 | } | |
414 | break; | |
415 | } | |
416 | } | |
417 | g_hash_table_iter_init(&iter, obj->properties); | |
418 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
419 | prop = value; | |
5d9d3f47 | 420 | if (object_property_is_child(prop) && prop->opaque == child) { |
b604a854 | 421 | g_hash_table_iter_remove(&iter); |
6c1fdcf9 | 422 | break; |
57c9fafe AL |
423 | } |
424 | } | |
425 | } | |
426 | ||
427 | void object_unparent(Object *obj) | |
428 | { | |
e998fa8d MT |
429 | if (obj->parent) { |
430 | object_property_del_child(obj->parent, obj, NULL); | |
431 | } | |
57c9fafe AL |
432 | } |
433 | ||
2f28d2ff AL |
434 | static void object_deinit(Object *obj, TypeImpl *type) |
435 | { | |
436 | if (type->instance_finalize) { | |
437 | type->instance_finalize(obj); | |
438 | } | |
439 | ||
2f28d2ff AL |
440 | if (type_has_parent(type)) { |
441 | object_deinit(obj, type_get_parent(type)); | |
442 | } | |
443 | } | |
444 | ||
339c2708 | 445 | static void object_finalize(void *data) |
2f28d2ff AL |
446 | { |
447 | Object *obj = data; | |
448 | TypeImpl *ti = obj->class->type; | |
449 | ||
57c9fafe | 450 | object_property_del_all(obj); |
76a6e1cc | 451 | object_deinit(obj, ti); |
db85b575 AL |
452 | |
453 | g_assert(obj->ref == 0); | |
fde9bf44 PB |
454 | if (obj->free) { |
455 | obj->free(obj); | |
456 | } | |
2f28d2ff AL |
457 | } |
458 | ||
459 | Object *object_new_with_type(Type type) | |
460 | { | |
461 | Object *obj; | |
462 | ||
463 | g_assert(type != NULL); | |
ac451033 | 464 | type_initialize(type); |
2f28d2ff AL |
465 | |
466 | obj = g_malloc(type->instance_size); | |
5b9237f6 | 467 | object_initialize_with_type(obj, type->instance_size, type); |
fde9bf44 | 468 | obj->free = g_free; |
2f28d2ff AL |
469 | |
470 | return obj; | |
471 | } | |
472 | ||
473 | Object *object_new(const char *typename) | |
474 | { | |
475 | TypeImpl *ti = type_get_by_name(typename); | |
476 | ||
477 | return object_new_with_type(ti); | |
478 | } | |
479 | ||
a31bdae5 DB |
480 | |
481 | Object *object_new_with_props(const char *typename, | |
482 | Object *parent, | |
483 | const char *id, | |
484 | Error **errp, | |
485 | ...) | |
486 | { | |
487 | va_list vargs; | |
488 | Object *obj; | |
489 | ||
490 | va_start(vargs, errp); | |
491 | obj = object_new_with_propv(typename, parent, id, errp, vargs); | |
492 | va_end(vargs); | |
493 | ||
494 | return obj; | |
495 | } | |
496 | ||
497 | ||
498 | Object *object_new_with_propv(const char *typename, | |
499 | Object *parent, | |
500 | const char *id, | |
501 | Error **errp, | |
502 | va_list vargs) | |
503 | { | |
504 | Object *obj; | |
505 | ObjectClass *klass; | |
506 | Error *local_err = NULL; | |
507 | ||
508 | klass = object_class_by_name(typename); | |
509 | if (!klass) { | |
510 | error_setg(errp, "invalid object type: %s", typename); | |
511 | return NULL; | |
512 | } | |
513 | ||
514 | if (object_class_is_abstract(klass)) { | |
515 | error_setg(errp, "object type '%s' is abstract", typename); | |
516 | return NULL; | |
517 | } | |
518 | obj = object_new(typename); | |
519 | ||
520 | if (object_set_propv(obj, &local_err, vargs) < 0) { | |
521 | goto error; | |
522 | } | |
523 | ||
524 | object_property_add_child(parent, id, obj, &local_err); | |
525 | if (local_err) { | |
526 | goto error; | |
527 | } | |
528 | ||
529 | if (object_dynamic_cast(obj, TYPE_USER_CREATABLE)) { | |
530 | user_creatable_complete(obj, &local_err); | |
531 | if (local_err) { | |
532 | object_unparent(obj); | |
533 | goto error; | |
534 | } | |
535 | } | |
536 | ||
537 | object_unref(OBJECT(obj)); | |
538 | return obj; | |
539 | ||
540 | error: | |
541 | if (local_err) { | |
542 | error_propagate(errp, local_err); | |
543 | } | |
544 | object_unref(obj); | |
545 | return NULL; | |
546 | } | |
547 | ||
548 | ||
549 | int object_set_props(Object *obj, | |
550 | Error **errp, | |
551 | ...) | |
552 | { | |
553 | va_list vargs; | |
554 | int ret; | |
555 | ||
556 | va_start(vargs, errp); | |
557 | ret = object_set_propv(obj, errp, vargs); | |
558 | va_end(vargs); | |
559 | ||
560 | return ret; | |
561 | } | |
562 | ||
563 | ||
564 | int object_set_propv(Object *obj, | |
565 | Error **errp, | |
566 | va_list vargs) | |
567 | { | |
568 | const char *propname; | |
569 | Error *local_err = NULL; | |
570 | ||
571 | propname = va_arg(vargs, char *); | |
572 | while (propname != NULL) { | |
573 | const char *value = va_arg(vargs, char *); | |
574 | ||
575 | g_assert(value != NULL); | |
576 | object_property_parse(obj, value, propname, &local_err); | |
577 | if (local_err) { | |
578 | error_propagate(errp, local_err); | |
579 | return -1; | |
580 | } | |
581 | propname = va_arg(vargs, char *); | |
582 | } | |
583 | ||
584 | return 0; | |
585 | } | |
586 | ||
587 | ||
2f28d2ff AL |
588 | Object *object_dynamic_cast(Object *obj, const char *typename) |
589 | { | |
b7f43fe4 | 590 | if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) { |
acc4af3f PB |
591 | return obj; |
592 | } | |
593 | ||
2f28d2ff AL |
594 | return NULL; |
595 | } | |
596 | ||
be17f18b PB |
597 | Object *object_dynamic_cast_assert(Object *obj, const char *typename, |
598 | const char *file, int line, const char *func) | |
2f28d2ff | 599 | { |
fa131d94 PB |
600 | trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)", |
601 | typename, file, line, func); | |
602 | ||
3556c233 | 603 | #ifdef CONFIG_QOM_CAST_DEBUG |
03587328 AL |
604 | int i; |
605 | Object *inst; | |
606 | ||
95916abc | 607 | for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 608 | if (obj->class->object_cast_cache[i] == typename) { |
03587328 AL |
609 | goto out; |
610 | } | |
611 | } | |
612 | ||
613 | inst = object_dynamic_cast(obj, typename); | |
2f28d2ff | 614 | |
b7f43fe4 | 615 | if (!inst && obj) { |
be17f18b PB |
616 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
617 | file, line, func, obj, typename); | |
2f28d2ff AL |
618 | abort(); |
619 | } | |
620 | ||
3556c233 | 621 | assert(obj == inst); |
03587328 | 622 | |
95916abc | 623 | if (obj && obj == inst) { |
03587328 | 624 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c PC |
625 | obj->class->object_cast_cache[i - 1] = |
626 | obj->class->object_cast_cache[i]; | |
03587328 | 627 | } |
0ab4c94c | 628 | obj->class->object_cast_cache[i - 1] = typename; |
03587328 AL |
629 | } |
630 | ||
631 | out: | |
3556c233 PB |
632 | #endif |
633 | return obj; | |
2f28d2ff AL |
634 | } |
635 | ||
636 | ObjectClass *object_class_dynamic_cast(ObjectClass *class, | |
637 | const char *typename) | |
638 | { | |
33e95c63 | 639 | ObjectClass *ret = NULL; |
bf0fda34 PB |
640 | TypeImpl *target_type; |
641 | TypeImpl *type; | |
2f28d2ff | 642 | |
bf0fda34 PB |
643 | if (!class) { |
644 | return NULL; | |
645 | } | |
646 | ||
793c96b5 | 647 | /* A simple fast path that can trigger a lot for leaf classes. */ |
bf0fda34 | 648 | type = class->type; |
793c96b5 PB |
649 | if (type->name == typename) { |
650 | return class; | |
651 | } | |
652 | ||
bf0fda34 | 653 | target_type = type_get_by_name(typename); |
9ab880b3 AG |
654 | if (!target_type) { |
655 | /* target class type unknown, so fail the cast */ | |
656 | return NULL; | |
657 | } | |
658 | ||
00e2ceae PC |
659 | if (type->class->interfaces && |
660 | type_is_ancestor(target_type, type_interface)) { | |
33e95c63 AL |
661 | int found = 0; |
662 | GSList *i; | |
2f28d2ff | 663 | |
33e95c63 AL |
664 | for (i = class->interfaces; i; i = i->next) { |
665 | ObjectClass *target_class = i->data; | |
666 | ||
667 | if (type_is_ancestor(target_class->type, target_type)) { | |
668 | ret = target_class; | |
669 | found++; | |
670 | } | |
671 | } | |
672 | ||
673 | /* The match was ambiguous, don't allow a cast */ | |
674 | if (found > 1) { | |
675 | ret = NULL; | |
676 | } | |
677 | } else if (type_is_ancestor(type, target_type)) { | |
678 | ret = class; | |
2f28d2ff AL |
679 | } |
680 | ||
33e95c63 | 681 | return ret; |
2f28d2ff AL |
682 | } |
683 | ||
684 | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, | |
be17f18b PB |
685 | const char *typename, |
686 | const char *file, int line, | |
687 | const char *func) | |
2f28d2ff | 688 | { |
fa131d94 PB |
689 | ObjectClass *ret; |
690 | ||
691 | trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)", | |
692 | typename, file, line, func); | |
2f28d2ff | 693 | |
03587328 AL |
694 | #ifdef CONFIG_QOM_CAST_DEBUG |
695 | int i; | |
696 | ||
9d6a3d58 | 697 | for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 698 | if (class->class_cast_cache[i] == typename) { |
03587328 AL |
699 | ret = class; |
700 | goto out; | |
701 | } | |
702 | } | |
703 | #else | |
9d6a3d58 | 704 | if (!class || !class->interfaces) { |
3556c233 PB |
705 | return class; |
706 | } | |
707 | #endif | |
708 | ||
fa131d94 | 709 | ret = object_class_dynamic_cast(class, typename); |
bf0fda34 | 710 | if (!ret && class) { |
be17f18b PB |
711 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
712 | file, line, func, class, typename); | |
2f28d2ff AL |
713 | abort(); |
714 | } | |
715 | ||
03587328 | 716 | #ifdef CONFIG_QOM_CAST_DEBUG |
9d6a3d58 | 717 | if (class && ret == class) { |
03587328 | 718 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 719 | class->class_cast_cache[i - 1] = class->class_cast_cache[i]; |
03587328 | 720 | } |
0ab4c94c | 721 | class->class_cast_cache[i - 1] = typename; |
03587328 AL |
722 | } |
723 | out: | |
724 | #endif | |
2f28d2ff AL |
725 | return ret; |
726 | } | |
727 | ||
728 | const char *object_get_typename(Object *obj) | |
729 | { | |
730 | return obj->class->type->name; | |
731 | } | |
732 | ||
733 | ObjectClass *object_get_class(Object *obj) | |
734 | { | |
735 | return obj->class; | |
736 | } | |
737 | ||
17862378 AF |
738 | bool object_class_is_abstract(ObjectClass *klass) |
739 | { | |
740 | return klass->type->abstract; | |
741 | } | |
742 | ||
2f28d2ff AL |
743 | const char *object_class_get_name(ObjectClass *klass) |
744 | { | |
745 | return klass->type->name; | |
746 | } | |
747 | ||
748 | ObjectClass *object_class_by_name(const char *typename) | |
749 | { | |
750 | TypeImpl *type = type_get_by_name(typename); | |
751 | ||
752 | if (!type) { | |
753 | return NULL; | |
754 | } | |
755 | ||
ac451033 | 756 | type_initialize(type); |
2f28d2ff AL |
757 | |
758 | return type->class; | |
759 | } | |
760 | ||
e7cce67f PB |
761 | ObjectClass *object_class_get_parent(ObjectClass *class) |
762 | { | |
763 | TypeImpl *type = type_get_parent(class->type); | |
764 | ||
765 | if (!type) { | |
766 | return NULL; | |
767 | } | |
768 | ||
769 | type_initialize(type); | |
770 | ||
771 | return type->class; | |
772 | } | |
773 | ||
2f28d2ff AL |
774 | typedef struct OCFData |
775 | { | |
776 | void (*fn)(ObjectClass *klass, void *opaque); | |
93c511a1 AL |
777 | const char *implements_type; |
778 | bool include_abstract; | |
2f28d2ff AL |
779 | void *opaque; |
780 | } OCFData; | |
781 | ||
782 | static void object_class_foreach_tramp(gpointer key, gpointer value, | |
783 | gpointer opaque) | |
784 | { | |
785 | OCFData *data = opaque; | |
786 | TypeImpl *type = value; | |
93c511a1 | 787 | ObjectClass *k; |
2f28d2ff | 788 | |
ac451033 | 789 | type_initialize(type); |
93c511a1 | 790 | k = type->class; |
2f28d2ff | 791 | |
93c511a1 AL |
792 | if (!data->include_abstract && type->abstract) { |
793 | return; | |
794 | } | |
795 | ||
796 | if (data->implements_type && | |
797 | !object_class_dynamic_cast(k, data->implements_type)) { | |
798 | return; | |
799 | } | |
800 | ||
801 | data->fn(k, data->opaque); | |
2f28d2ff AL |
802 | } |
803 | ||
804 | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), | |
93c511a1 | 805 | const char *implements_type, bool include_abstract, |
2f28d2ff AL |
806 | void *opaque) |
807 | { | |
93c511a1 | 808 | OCFData data = { fn, implements_type, include_abstract, opaque }; |
2f28d2ff | 809 | |
f54c19ca | 810 | enumerating_types = true; |
2f28d2ff | 811 | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
f54c19ca | 812 | enumerating_types = false; |
2f28d2ff | 813 | } |
57c9fafe | 814 | |
d714b8de PC |
815 | static int do_object_child_foreach(Object *obj, |
816 | int (*fn)(Object *child, void *opaque), | |
817 | void *opaque, bool recurse) | |
32efc535 | 818 | { |
b604a854 PF |
819 | GHashTableIter iter; |
820 | ObjectProperty *prop; | |
32efc535 PB |
821 | int ret = 0; |
822 | ||
b604a854 PF |
823 | g_hash_table_iter_init(&iter, obj->properties); |
824 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
32efc535 | 825 | if (object_property_is_child(prop)) { |
d714b8de PC |
826 | Object *child = prop->opaque; |
827 | ||
828 | ret = fn(child, opaque); | |
32efc535 PB |
829 | if (ret != 0) { |
830 | break; | |
831 | } | |
d714b8de PC |
832 | if (recurse) { |
833 | do_object_child_foreach(child, fn, opaque, true); | |
834 | } | |
32efc535 PB |
835 | } |
836 | } | |
837 | return ret; | |
838 | } | |
839 | ||
d714b8de PC |
840 | int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque), |
841 | void *opaque) | |
842 | { | |
843 | return do_object_child_foreach(obj, fn, opaque, false); | |
844 | } | |
845 | ||
846 | int object_child_foreach_recursive(Object *obj, | |
847 | int (*fn)(Object *child, void *opaque), | |
848 | void *opaque) | |
849 | { | |
850 | return do_object_child_foreach(obj, fn, opaque, true); | |
851 | } | |
852 | ||
418ba9e5 AF |
853 | static void object_class_get_list_tramp(ObjectClass *klass, void *opaque) |
854 | { | |
855 | GSList **list = opaque; | |
856 | ||
857 | *list = g_slist_prepend(*list, klass); | |
858 | } | |
859 | ||
860 | GSList *object_class_get_list(const char *implements_type, | |
861 | bool include_abstract) | |
862 | { | |
863 | GSList *list = NULL; | |
864 | ||
865 | object_class_foreach(object_class_get_list_tramp, | |
866 | implements_type, include_abstract, &list); | |
867 | return list; | |
868 | } | |
869 | ||
57c9fafe AL |
870 | void object_ref(Object *obj) |
871 | { | |
8ffad850 PC |
872 | if (!obj) { |
873 | return; | |
874 | } | |
f08c03f3 | 875 | atomic_inc(&obj->ref); |
57c9fafe AL |
876 | } |
877 | ||
878 | void object_unref(Object *obj) | |
879 | { | |
8ffad850 PC |
880 | if (!obj) { |
881 | return; | |
882 | } | |
57c9fafe | 883 | g_assert(obj->ref > 0); |
57c9fafe AL |
884 | |
885 | /* parent always holds a reference to its children */ | |
f08c03f3 | 886 | if (atomic_fetch_dec(&obj->ref) == 1) { |
57c9fafe AL |
887 | object_finalize(obj); |
888 | } | |
889 | } | |
890 | ||
64607d08 PB |
891 | ObjectProperty * |
892 | object_property_add(Object *obj, const char *name, const char *type, | |
893 | ObjectPropertyAccessor *get, | |
894 | ObjectPropertyAccessor *set, | |
895 | ObjectPropertyRelease *release, | |
896 | void *opaque, Error **errp) | |
57c9fafe | 897 | { |
54852b03 | 898 | ObjectProperty *prop; |
33965904 PC |
899 | size_t name_len = strlen(name); |
900 | ||
901 | if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) { | |
902 | int i; | |
903 | ObjectProperty *ret; | |
904 | char *name_no_array = g_strdup(name); | |
905 | ||
906 | name_no_array[name_len - 3] = '\0'; | |
907 | for (i = 0; ; ++i) { | |
908 | char *full_name = g_strdup_printf("%s[%d]", name_no_array, i); | |
909 | ||
910 | ret = object_property_add(obj, full_name, type, get, set, | |
911 | release, opaque, NULL); | |
912 | g_free(full_name); | |
913 | if (ret) { | |
914 | break; | |
915 | } | |
916 | } | |
917 | g_free(name_no_array); | |
918 | return ret; | |
919 | } | |
54852b03 | 920 | |
b604a854 PF |
921 | if (g_hash_table_lookup(obj->properties, name) != NULL) { |
922 | error_setg(errp, "attempt to add duplicate property '%s'" | |
54852b03 PM |
923 | " to object (type '%s')", name, |
924 | object_get_typename(obj)); | |
b604a854 | 925 | return NULL; |
54852b03 PM |
926 | } |
927 | ||
928 | prop = g_malloc0(sizeof(*prop)); | |
57c9fafe AL |
929 | |
930 | prop->name = g_strdup(name); | |
931 | prop->type = g_strdup(type); | |
932 | ||
933 | prop->get = get; | |
934 | prop->set = set; | |
935 | prop->release = release; | |
936 | prop->opaque = opaque; | |
937 | ||
b604a854 | 938 | g_hash_table_insert(obj->properties, prop->name, prop); |
64607d08 | 939 | return prop; |
57c9fafe AL |
940 | } |
941 | ||
89bfe000 PB |
942 | ObjectProperty *object_property_find(Object *obj, const char *name, |
943 | Error **errp) | |
57c9fafe AL |
944 | { |
945 | ObjectProperty *prop; | |
946 | ||
b604a854 PF |
947 | prop = g_hash_table_lookup(obj->properties, name); |
948 | if (prop) { | |
949 | return prop; | |
57c9fafe AL |
950 | } |
951 | ||
f231b88d | 952 | error_setg(errp, "Property '.%s' not found", name); |
57c9fafe AL |
953 | return NULL; |
954 | } | |
955 | ||
a00c9482 DB |
956 | ObjectPropertyIterator *object_property_iter_init(Object *obj) |
957 | { | |
958 | ObjectPropertyIterator *ret = g_new0(ObjectPropertyIterator, 1); | |
b604a854 | 959 | g_hash_table_iter_init(&ret->iter, obj->properties); |
a00c9482 DB |
960 | return ret; |
961 | } | |
962 | ||
963 | void object_property_iter_free(ObjectPropertyIterator *iter) | |
964 | { | |
965 | if (!iter) { | |
966 | return; | |
967 | } | |
968 | g_free(iter); | |
969 | } | |
970 | ||
971 | ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter) | |
972 | { | |
b604a854 PF |
973 | gpointer key, val; |
974 | if (!g_hash_table_iter_next(&iter->iter, &key, &val)) { | |
975 | return NULL; | |
a00c9482 | 976 | } |
b604a854 | 977 | return val; |
a00c9482 DB |
978 | } |
979 | ||
57c9fafe AL |
980 | void object_property_del(Object *obj, const char *name, Error **errp) |
981 | { | |
b604a854 PF |
982 | ObjectProperty *prop = g_hash_table_lookup(obj->properties, name); |
983 | ||
984 | if (!prop) { | |
985 | error_setg(errp, "Property '.%s' not found", name); | |
0866aca1 AL |
986 | return; |
987 | } | |
57c9fafe | 988 | |
0866aca1 AL |
989 | if (prop->release) { |
990 | prop->release(obj, name, prop->opaque); | |
991 | } | |
b604a854 | 992 | g_hash_table_remove(obj->properties, name); |
57c9fafe AL |
993 | } |
994 | ||
995 | void object_property_get(Object *obj, Visitor *v, const char *name, | |
996 | Error **errp) | |
997 | { | |
89bfe000 | 998 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 999 | if (prop == NULL) { |
57c9fafe AL |
1000 | return; |
1001 | } | |
1002 | ||
1003 | if (!prop->get) { | |
c6bd8c70 | 1004 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe AL |
1005 | } else { |
1006 | prop->get(obj, v, prop->opaque, name, errp); | |
1007 | } | |
1008 | } | |
1009 | ||
1010 | void object_property_set(Object *obj, Visitor *v, const char *name, | |
1011 | Error **errp) | |
1012 | { | |
89bfe000 | 1013 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1014 | if (prop == NULL) { |
57c9fafe AL |
1015 | return; |
1016 | } | |
1017 | ||
1018 | if (!prop->set) { | |
c6bd8c70 | 1019 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe AL |
1020 | } else { |
1021 | prop->set(obj, v, prop->opaque, name, errp); | |
1022 | } | |
1023 | } | |
1024 | ||
7b7b7d18 PB |
1025 | void object_property_set_str(Object *obj, const char *value, |
1026 | const char *name, Error **errp) | |
1027 | { | |
1028 | QString *qstr = qstring_from_str(value); | |
1029 | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); | |
1030 | ||
1031 | QDECREF(qstr); | |
1032 | } | |
1033 | ||
1034 | char *object_property_get_str(Object *obj, const char *name, | |
1035 | Error **errp) | |
1036 | { | |
1037 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1038 | QString *qstring; | |
1039 | char *retval; | |
1040 | ||
1041 | if (!ret) { | |
1042 | return NULL; | |
1043 | } | |
1044 | qstring = qobject_to_qstring(ret); | |
1045 | if (!qstring) { | |
c6bd8c70 | 1046 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string"); |
7b7b7d18 PB |
1047 | retval = NULL; |
1048 | } else { | |
1049 | retval = g_strdup(qstring_get_str(qstring)); | |
1050 | } | |
1051 | ||
1052 | QDECREF(qstring); | |
1053 | return retval; | |
1054 | } | |
1055 | ||
1d9c5a12 PB |
1056 | void object_property_set_link(Object *obj, Object *value, |
1057 | const char *name, Error **errp) | |
1058 | { | |
d3c49316 PC |
1059 | if (value) { |
1060 | gchar *path = object_get_canonical_path(value); | |
1061 | object_property_set_str(obj, path, name, errp); | |
1062 | g_free(path); | |
1063 | } else { | |
1064 | object_property_set_str(obj, "", name, errp); | |
1065 | } | |
1d9c5a12 PB |
1066 | } |
1067 | ||
1068 | Object *object_property_get_link(Object *obj, const char *name, | |
1069 | Error **errp) | |
1070 | { | |
1071 | char *str = object_property_get_str(obj, name, errp); | |
1072 | Object *target = NULL; | |
1073 | ||
1074 | if (str && *str) { | |
1075 | target = object_resolve_path(str, NULL); | |
1076 | if (!target) { | |
75158ebb MA |
1077 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1078 | "Device '%s' not found", str); | |
1d9c5a12 PB |
1079 | } |
1080 | } | |
1081 | ||
1082 | g_free(str); | |
1083 | return target; | |
1084 | } | |
1085 | ||
7b7b7d18 PB |
1086 | void object_property_set_bool(Object *obj, bool value, |
1087 | const char *name, Error **errp) | |
1088 | { | |
fc48ffc3 | 1089 | QBool *qbool = qbool_from_bool(value); |
7b7b7d18 PB |
1090 | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
1091 | ||
1092 | QDECREF(qbool); | |
1093 | } | |
1094 | ||
1095 | bool object_property_get_bool(Object *obj, const char *name, | |
1096 | Error **errp) | |
1097 | { | |
1098 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1099 | QBool *qbool; | |
1100 | bool retval; | |
1101 | ||
1102 | if (!ret) { | |
1103 | return false; | |
1104 | } | |
1105 | qbool = qobject_to_qbool(ret); | |
1106 | if (!qbool) { | |
c6bd8c70 | 1107 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean"); |
7b7b7d18 PB |
1108 | retval = false; |
1109 | } else { | |
fc48ffc3 | 1110 | retval = qbool_get_bool(qbool); |
7b7b7d18 PB |
1111 | } |
1112 | ||
1113 | QDECREF(qbool); | |
1114 | return retval; | |
1115 | } | |
1116 | ||
1117 | void object_property_set_int(Object *obj, int64_t value, | |
1118 | const char *name, Error **errp) | |
1119 | { | |
1120 | QInt *qint = qint_from_int(value); | |
1121 | object_property_set_qobject(obj, QOBJECT(qint), name, errp); | |
1122 | ||
1123 | QDECREF(qint); | |
1124 | } | |
1125 | ||
1126 | int64_t object_property_get_int(Object *obj, const char *name, | |
1127 | Error **errp) | |
1128 | { | |
1129 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1130 | QInt *qint; | |
1131 | int64_t retval; | |
1132 | ||
1133 | if (!ret) { | |
1134 | return -1; | |
1135 | } | |
1136 | qint = qobject_to_qint(ret); | |
1137 | if (!qint) { | |
c6bd8c70 | 1138 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int"); |
7b7b7d18 PB |
1139 | retval = -1; |
1140 | } else { | |
1141 | retval = qint_get_int(qint); | |
1142 | } | |
1143 | ||
1144 | QDECREF(qint); | |
1145 | return retval; | |
b2cd7dee PB |
1146 | } |
1147 | ||
a8e3fbed DB |
1148 | typedef struct EnumProperty { |
1149 | const char * const *strings; | |
1150 | int (*get)(Object *, Error **); | |
1151 | void (*set)(Object *, int, Error **); | |
1152 | } EnumProperty; | |
1153 | ||
1f21772d | 1154 | int object_property_get_enum(Object *obj, const char *name, |
a3590dac | 1155 | const char *typename, Error **errp) |
1f21772d | 1156 | { |
4715d42e | 1157 | Error *err = NULL; |
1f21772d HT |
1158 | StringOutputVisitor *sov; |
1159 | StringInputVisitor *siv; | |
976620ac | 1160 | char *str; |
1f21772d | 1161 | int ret; |
a3590dac DB |
1162 | ObjectProperty *prop = object_property_find(obj, name, errp); |
1163 | EnumProperty *enumprop; | |
1164 | ||
1165 | if (prop == NULL) { | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | if (!g_str_equal(prop->type, typename)) { | |
1170 | error_setg(errp, "Property %s on %s is not '%s' enum type", | |
1171 | name, object_class_get_name( | |
1172 | object_get_class(obj)), typename); | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1176 | enumprop = prop->opaque; | |
1f21772d HT |
1177 | |
1178 | sov = string_output_visitor_new(false); | |
4715d42e MA |
1179 | object_property_get(obj, string_output_get_visitor(sov), name, &err); |
1180 | if (err) { | |
1181 | error_propagate(errp, err); | |
1182 | string_output_visitor_cleanup(sov); | |
1183 | return 0; | |
1184 | } | |
976620ac CF |
1185 | str = string_output_get_string(sov); |
1186 | siv = string_input_visitor_new(str); | |
1f21772d HT |
1187 | string_output_visitor_cleanup(sov); |
1188 | visit_type_enum(string_input_get_visitor(siv), | |
a3590dac | 1189 | &ret, enumprop->strings, NULL, name, errp); |
976620ac CF |
1190 | |
1191 | g_free(str); | |
1f21772d HT |
1192 | string_input_visitor_cleanup(siv); |
1193 | ||
1194 | return ret; | |
1195 | } | |
1196 | ||
1197 | void object_property_get_uint16List(Object *obj, const char *name, | |
1198 | uint16List **list, Error **errp) | |
1199 | { | |
4715d42e | 1200 | Error *err = NULL; |
1f21772d HT |
1201 | StringOutputVisitor *ov; |
1202 | StringInputVisitor *iv; | |
976620ac | 1203 | char *str; |
1f21772d HT |
1204 | |
1205 | ov = string_output_visitor_new(false); | |
1206 | object_property_get(obj, string_output_get_visitor(ov), | |
4715d42e MA |
1207 | name, &err); |
1208 | if (err) { | |
1209 | error_propagate(errp, err); | |
1210 | goto out; | |
1211 | } | |
976620ac CF |
1212 | str = string_output_get_string(ov); |
1213 | iv = string_input_visitor_new(str); | |
1f21772d HT |
1214 | visit_type_uint16List(string_input_get_visitor(iv), |
1215 | list, NULL, errp); | |
976620ac CF |
1216 | |
1217 | g_free(str); | |
1f21772d | 1218 | string_input_visitor_cleanup(iv); |
4715d42e MA |
1219 | out: |
1220 | string_output_visitor_cleanup(ov); | |
1f21772d HT |
1221 | } |
1222 | ||
b2cd7dee PB |
1223 | void object_property_parse(Object *obj, const char *string, |
1224 | const char *name, Error **errp) | |
1225 | { | |
f8b7f1a8 EB |
1226 | StringInputVisitor *siv; |
1227 | siv = string_input_visitor_new(string); | |
1228 | object_property_set(obj, string_input_get_visitor(siv), name, errp); | |
b2cd7dee | 1229 | |
f8b7f1a8 | 1230 | string_input_visitor_cleanup(siv); |
b2cd7dee PB |
1231 | } |
1232 | ||
0b7593e0 | 1233 | char *object_property_print(Object *obj, const char *name, bool human, |
b2cd7dee PB |
1234 | Error **errp) |
1235 | { | |
f8b7f1a8 | 1236 | StringOutputVisitor *sov; |
3a53009f GA |
1237 | char *string = NULL; |
1238 | Error *local_err = NULL; | |
b2cd7dee | 1239 | |
f8b7f1a8 EB |
1240 | sov = string_output_visitor_new(human); |
1241 | object_property_get(obj, string_output_get_visitor(sov), name, &local_err); | |
3a53009f GA |
1242 | if (local_err) { |
1243 | error_propagate(errp, local_err); | |
1244 | goto out; | |
1245 | } | |
1246 | ||
f8b7f1a8 | 1247 | string = string_output_get_string(sov); |
3a53009f GA |
1248 | |
1249 | out: | |
f8b7f1a8 | 1250 | string_output_visitor_cleanup(sov); |
b2cd7dee | 1251 | return string; |
7b7b7d18 PB |
1252 | } |
1253 | ||
57c9fafe AL |
1254 | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
1255 | { | |
89bfe000 | 1256 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1257 | if (prop == NULL) { |
57c9fafe AL |
1258 | return NULL; |
1259 | } | |
1260 | ||
1261 | return prop->type; | |
1262 | } | |
1263 | ||
1264 | Object *object_get_root(void) | |
1265 | { | |
8b45d447 | 1266 | static Object *root; |
57c9fafe | 1267 | |
8b45d447 AL |
1268 | if (!root) { |
1269 | root = object_new("container"); | |
57c9fafe AL |
1270 | } |
1271 | ||
8b45d447 | 1272 | return root; |
57c9fafe AL |
1273 | } |
1274 | ||
bc2256c4 DB |
1275 | Object *object_get_objects_root(void) |
1276 | { | |
1277 | return container_get(object_get_root(), "/objects"); | |
1278 | } | |
1279 | ||
57c9fafe AL |
1280 | static void object_get_child_property(Object *obj, Visitor *v, void *opaque, |
1281 | const char *name, Error **errp) | |
1282 | { | |
1283 | Object *child = opaque; | |
1284 | gchar *path; | |
1285 | ||
1286 | path = object_get_canonical_path(child); | |
1287 | visit_type_str(v, &path, name, errp); | |
1288 | g_free(path); | |
1289 | } | |
1290 | ||
64607d08 PB |
1291 | static Object *object_resolve_child_property(Object *parent, void *opaque, const gchar *part) |
1292 | { | |
1293 | return opaque; | |
1294 | } | |
1295 | ||
db85b575 AL |
1296 | static void object_finalize_child_property(Object *obj, const char *name, |
1297 | void *opaque) | |
1298 | { | |
1299 | Object *child = opaque; | |
1300 | ||
bffc687d PB |
1301 | if (child->class->unparent) { |
1302 | (child->class->unparent)(child); | |
1303 | } | |
1304 | child->parent = NULL; | |
db85b575 AL |
1305 | object_unref(child); |
1306 | } | |
1307 | ||
57c9fafe AL |
1308 | void object_property_add_child(Object *obj, const char *name, |
1309 | Object *child, Error **errp) | |
1310 | { | |
b0ed5e9f | 1311 | Error *local_err = NULL; |
57c9fafe | 1312 | gchar *type; |
64607d08 | 1313 | ObjectProperty *op; |
57c9fafe | 1314 | |
8faa2f85 PC |
1315 | if (child->parent != NULL) { |
1316 | error_setg(errp, "child object is already parented"); | |
1317 | return; | |
1318 | } | |
1319 | ||
57c9fafe AL |
1320 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
1321 | ||
64607d08 PB |
1322 | op = object_property_add(obj, name, type, object_get_child_property, NULL, |
1323 | object_finalize_child_property, child, &local_err); | |
b0ed5e9f PB |
1324 | if (local_err) { |
1325 | error_propagate(errp, local_err); | |
1326 | goto out; | |
1327 | } | |
64607d08 PB |
1328 | |
1329 | op->resolve = object_resolve_child_property; | |
57c9fafe | 1330 | object_ref(child); |
57c9fafe AL |
1331 | child->parent = obj; |
1332 | ||
b0ed5e9f | 1333 | out: |
57c9fafe AL |
1334 | g_free(type); |
1335 | } | |
1336 | ||
39f72ef9 SH |
1337 | void object_property_allow_set_link(Object *obj, const char *name, |
1338 | Object *val, Error **errp) | |
1339 | { | |
1340 | /* Allow the link to be set, always */ | |
1341 | } | |
1342 | ||
9561fda8 SH |
1343 | typedef struct { |
1344 | Object **child; | |
39f72ef9 | 1345 | void (*check)(Object *, const char *, Object *, Error **); |
9561fda8 SH |
1346 | ObjectPropertyLinkFlags flags; |
1347 | } LinkProperty; | |
1348 | ||
57c9fafe AL |
1349 | static void object_get_link_property(Object *obj, Visitor *v, void *opaque, |
1350 | const char *name, Error **errp) | |
1351 | { | |
9561fda8 SH |
1352 | LinkProperty *lprop = opaque; |
1353 | Object **child = lprop->child; | |
57c9fafe AL |
1354 | gchar *path; |
1355 | ||
1356 | if (*child) { | |
1357 | path = object_get_canonical_path(*child); | |
1358 | visit_type_str(v, &path, name, errp); | |
1359 | g_free(path); | |
1360 | } else { | |
1361 | path = (gchar *)""; | |
1362 | visit_type_str(v, &path, name, errp); | |
1363 | } | |
1364 | } | |
1365 | ||
f5ec6704 SH |
1366 | /* |
1367 | * object_resolve_link: | |
1368 | * | |
1369 | * Lookup an object and ensure its type matches the link property type. This | |
1370 | * is similar to object_resolve_path() except type verification against the | |
1371 | * link property is performed. | |
1372 | * | |
1373 | * Returns: The matched object or NULL on path lookup failures. | |
1374 | */ | |
1375 | static Object *object_resolve_link(Object *obj, const char *name, | |
1376 | const char *path, Error **errp) | |
1377 | { | |
1378 | const char *type; | |
1379 | gchar *target_type; | |
1380 | bool ambiguous = false; | |
1381 | Object *target; | |
1382 | ||
1383 | /* Go from link<FOO> to FOO. */ | |
1384 | type = object_property_get_type(obj, name, NULL); | |
1385 | target_type = g_strndup(&type[5], strlen(type) - 6); | |
1386 | target = object_resolve_path_type(path, target_type, &ambiguous); | |
1387 | ||
1388 | if (ambiguous) { | |
455b0fde EB |
1389 | error_setg(errp, "Path '%s' does not uniquely identify an object", |
1390 | path); | |
f5ec6704 SH |
1391 | } else if (!target) { |
1392 | target = object_resolve_path(path, &ambiguous); | |
1393 | if (target || ambiguous) { | |
c6bd8c70 | 1394 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
f5ec6704 | 1395 | } else { |
75158ebb MA |
1396 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1397 | "Device '%s' not found", path); | |
f5ec6704 SH |
1398 | } |
1399 | target = NULL; | |
1400 | } | |
1401 | g_free(target_type); | |
1402 | ||
1403 | return target; | |
1404 | } | |
1405 | ||
57c9fafe AL |
1406 | static void object_set_link_property(Object *obj, Visitor *v, void *opaque, |
1407 | const char *name, Error **errp) | |
1408 | { | |
c6aed983 | 1409 | Error *local_err = NULL; |
9561fda8 SH |
1410 | LinkProperty *prop = opaque; |
1411 | Object **child = prop->child; | |
c6aed983 SH |
1412 | Object *old_target = *child; |
1413 | Object *new_target = NULL; | |
1414 | char *path = NULL; | |
57c9fafe | 1415 | |
c6aed983 | 1416 | visit_type_str(v, &path, name, &local_err); |
57c9fafe | 1417 | |
c6aed983 SH |
1418 | if (!local_err && strcmp(path, "") != 0) { |
1419 | new_target = object_resolve_link(obj, name, path, &local_err); | |
57c9fafe AL |
1420 | } |
1421 | ||
1422 | g_free(path); | |
c6aed983 SH |
1423 | if (local_err) { |
1424 | error_propagate(errp, local_err); | |
1425 | return; | |
1426 | } | |
f0cdc966 | 1427 | |
39f72ef9 SH |
1428 | prop->check(obj, name, new_target, &local_err); |
1429 | if (local_err) { | |
1430 | error_propagate(errp, local_err); | |
1431 | return; | |
1432 | } | |
1433 | ||
8ffad850 | 1434 | object_ref(new_target); |
c6aed983 | 1435 | *child = new_target; |
8ffad850 | 1436 | object_unref(old_target); |
57c9fafe AL |
1437 | } |
1438 | ||
64607d08 PB |
1439 | static Object *object_resolve_link_property(Object *parent, void *opaque, const gchar *part) |
1440 | { | |
1441 | LinkProperty *lprop = opaque; | |
1442 | ||
1443 | return *lprop->child; | |
1444 | } | |
1445 | ||
9561fda8 SH |
1446 | static void object_release_link_property(Object *obj, const char *name, |
1447 | void *opaque) | |
1448 | { | |
1449 | LinkProperty *prop = opaque; | |
1450 | ||
1451 | if ((prop->flags & OBJ_PROP_LINK_UNREF_ON_RELEASE) && *prop->child) { | |
1452 | object_unref(*prop->child); | |
1453 | } | |
1454 | g_free(prop); | |
1455 | } | |
1456 | ||
57c9fafe AL |
1457 | void object_property_add_link(Object *obj, const char *name, |
1458 | const char *type, Object **child, | |
39f72ef9 SH |
1459 | void (*check)(Object *, const char *, |
1460 | Object *, Error **), | |
9561fda8 | 1461 | ObjectPropertyLinkFlags flags, |
57c9fafe AL |
1462 | Error **errp) |
1463 | { | |
9561fda8 SH |
1464 | Error *local_err = NULL; |
1465 | LinkProperty *prop = g_malloc(sizeof(*prop)); | |
57c9fafe | 1466 | gchar *full_type; |
64607d08 | 1467 | ObjectProperty *op; |
57c9fafe | 1468 | |
9561fda8 | 1469 | prop->child = child; |
39f72ef9 | 1470 | prop->check = check; |
9561fda8 SH |
1471 | prop->flags = flags; |
1472 | ||
57c9fafe AL |
1473 | full_type = g_strdup_printf("link<%s>", type); |
1474 | ||
64607d08 PB |
1475 | op = object_property_add(obj, name, full_type, |
1476 | object_get_link_property, | |
1477 | check ? object_set_link_property : NULL, | |
1478 | object_release_link_property, | |
1479 | prop, | |
1480 | &local_err); | |
9561fda8 SH |
1481 | if (local_err) { |
1482 | error_propagate(errp, local_err); | |
1483 | g_free(prop); | |
64607d08 | 1484 | goto out; |
9561fda8 | 1485 | } |
57c9fafe | 1486 | |
64607d08 PB |
1487 | op->resolve = object_resolve_link_property; |
1488 | ||
1489 | out: | |
57c9fafe AL |
1490 | g_free(full_type); |
1491 | } | |
1492 | ||
fb9e7e33 PB |
1493 | void object_property_add_const_link(Object *obj, const char *name, |
1494 | Object *target, Error **errp) | |
1495 | { | |
1496 | char *link_type; | |
1497 | ObjectProperty *op; | |
1498 | ||
1499 | link_type = g_strdup_printf("link<%s>", object_get_typename(target)); | |
1500 | op = object_property_add(obj, name, link_type, | |
1501 | object_get_child_property, NULL, | |
1502 | NULL, target, errp); | |
1503 | if (op != NULL) { | |
1504 | op->resolve = object_resolve_child_property; | |
1505 | } | |
1506 | g_free(link_type); | |
1507 | } | |
1508 | ||
11f590b1 SH |
1509 | gchar *object_get_canonical_path_component(Object *obj) |
1510 | { | |
1511 | ObjectProperty *prop = NULL; | |
b604a854 | 1512 | GHashTableIter iter; |
11f590b1 SH |
1513 | |
1514 | g_assert(obj); | |
1515 | g_assert(obj->parent != NULL); | |
1516 | ||
b604a854 PF |
1517 | g_hash_table_iter_init(&iter, obj->parent->properties); |
1518 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
11f590b1 SH |
1519 | if (!object_property_is_child(prop)) { |
1520 | continue; | |
1521 | } | |
1522 | ||
1523 | if (prop->opaque == obj) { | |
1524 | return g_strdup(prop->name); | |
1525 | } | |
1526 | } | |
1527 | ||
1528 | /* obj had a parent but was not a child, should never happen */ | |
1529 | g_assert_not_reached(); | |
1530 | return NULL; | |
1531 | } | |
1532 | ||
57c9fafe AL |
1533 | gchar *object_get_canonical_path(Object *obj) |
1534 | { | |
1535 | Object *root = object_get_root(); | |
11f590b1 | 1536 | char *newpath, *path = NULL; |
57c9fafe AL |
1537 | |
1538 | while (obj != root) { | |
11f590b1 | 1539 | char *component = object_get_canonical_path_component(obj); |
57c9fafe | 1540 | |
11f590b1 SH |
1541 | if (path) { |
1542 | newpath = g_strdup_printf("%s/%s", component, path); | |
1543 | g_free(component); | |
1544 | g_free(path); | |
1545 | path = newpath; | |
1546 | } else { | |
1547 | path = component; | |
57c9fafe AL |
1548 | } |
1549 | ||
57c9fafe AL |
1550 | obj = obj->parent; |
1551 | } | |
1552 | ||
11f590b1 | 1553 | newpath = g_strdup_printf("/%s", path ? path : ""); |
57c9fafe AL |
1554 | g_free(path); |
1555 | ||
1556 | return newpath; | |
1557 | } | |
1558 | ||
3e84b483 | 1559 | Object *object_resolve_path_component(Object *parent, const gchar *part) |
a612b2a6 | 1560 | { |
89bfe000 | 1561 | ObjectProperty *prop = object_property_find(parent, part, NULL); |
a612b2a6 PB |
1562 | if (prop == NULL) { |
1563 | return NULL; | |
1564 | } | |
1565 | ||
64607d08 PB |
1566 | if (prop->resolve) { |
1567 | return prop->resolve(parent, prop->opaque, part); | |
a612b2a6 PB |
1568 | } else { |
1569 | return NULL; | |
1570 | } | |
1571 | } | |
1572 | ||
57c9fafe AL |
1573 | static Object *object_resolve_abs_path(Object *parent, |
1574 | gchar **parts, | |
02fe2db6 | 1575 | const char *typename, |
57c9fafe AL |
1576 | int index) |
1577 | { | |
57c9fafe AL |
1578 | Object *child; |
1579 | ||
1580 | if (parts[index] == NULL) { | |
02fe2db6 | 1581 | return object_dynamic_cast(parent, typename); |
57c9fafe AL |
1582 | } |
1583 | ||
1584 | if (strcmp(parts[index], "") == 0) { | |
02fe2db6 | 1585 | return object_resolve_abs_path(parent, parts, typename, index + 1); |
57c9fafe AL |
1586 | } |
1587 | ||
a612b2a6 | 1588 | child = object_resolve_path_component(parent, parts[index]); |
57c9fafe AL |
1589 | if (!child) { |
1590 | return NULL; | |
1591 | } | |
1592 | ||
02fe2db6 | 1593 | return object_resolve_abs_path(child, parts, typename, index + 1); |
57c9fafe AL |
1594 | } |
1595 | ||
1596 | static Object *object_resolve_partial_path(Object *parent, | |
1597 | gchar **parts, | |
02fe2db6 | 1598 | const char *typename, |
57c9fafe AL |
1599 | bool *ambiguous) |
1600 | { | |
1601 | Object *obj; | |
b604a854 | 1602 | GHashTableIter iter; |
57c9fafe AL |
1603 | ObjectProperty *prop; |
1604 | ||
02fe2db6 | 1605 | obj = object_resolve_abs_path(parent, parts, typename, 0); |
57c9fafe | 1606 | |
b604a854 PF |
1607 | g_hash_table_iter_init(&iter, parent->properties); |
1608 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
57c9fafe AL |
1609 | Object *found; |
1610 | ||
5d9d3f47 | 1611 | if (!object_property_is_child(prop)) { |
57c9fafe AL |
1612 | continue; |
1613 | } | |
1614 | ||
02fe2db6 PB |
1615 | found = object_resolve_partial_path(prop->opaque, parts, |
1616 | typename, ambiguous); | |
57c9fafe AL |
1617 | if (found) { |
1618 | if (obj) { | |
1619 | if (ambiguous) { | |
1620 | *ambiguous = true; | |
1621 | } | |
1622 | return NULL; | |
1623 | } | |
1624 | obj = found; | |
1625 | } | |
1626 | ||
1627 | if (ambiguous && *ambiguous) { | |
1628 | return NULL; | |
1629 | } | |
1630 | } | |
1631 | ||
1632 | return obj; | |
1633 | } | |
1634 | ||
02fe2db6 PB |
1635 | Object *object_resolve_path_type(const char *path, const char *typename, |
1636 | bool *ambiguous) | |
57c9fafe | 1637 | { |
57c9fafe AL |
1638 | Object *obj; |
1639 | gchar **parts; | |
1640 | ||
1641 | parts = g_strsplit(path, "/", 0); | |
2e1103f6 | 1642 | assert(parts); |
57c9fafe | 1643 | |
2e1103f6 | 1644 | if (parts[0] == NULL || strcmp(parts[0], "") != 0) { |
57c9fafe AL |
1645 | if (ambiguous) { |
1646 | *ambiguous = false; | |
1647 | } | |
02fe2db6 PB |
1648 | obj = object_resolve_partial_path(object_get_root(), parts, |
1649 | typename, ambiguous); | |
57c9fafe | 1650 | } else { |
02fe2db6 | 1651 | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1); |
57c9fafe AL |
1652 | } |
1653 | ||
1654 | g_strfreev(parts); | |
1655 | ||
1656 | return obj; | |
1657 | } | |
1658 | ||
02fe2db6 PB |
1659 | Object *object_resolve_path(const char *path, bool *ambiguous) |
1660 | { | |
1661 | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous); | |
1662 | } | |
1663 | ||
57c9fafe AL |
1664 | typedef struct StringProperty |
1665 | { | |
1666 | char *(*get)(Object *, Error **); | |
1667 | void (*set)(Object *, const char *, Error **); | |
1668 | } StringProperty; | |
1669 | ||
7b7b7d18 PB |
1670 | static void property_get_str(Object *obj, Visitor *v, void *opaque, |
1671 | const char *name, Error **errp) | |
57c9fafe AL |
1672 | { |
1673 | StringProperty *prop = opaque; | |
1674 | char *value; | |
e1c8237d | 1675 | Error *err = NULL; |
57c9fafe | 1676 | |
e1c8237d MA |
1677 | value = prop->get(obj, &err); |
1678 | if (err) { | |
1679 | error_propagate(errp, err); | |
1680 | return; | |
57c9fafe | 1681 | } |
e1c8237d MA |
1682 | |
1683 | visit_type_str(v, &value, name, errp); | |
1684 | g_free(value); | |
57c9fafe AL |
1685 | } |
1686 | ||
7b7b7d18 PB |
1687 | static void property_set_str(Object *obj, Visitor *v, void *opaque, |
1688 | const char *name, Error **errp) | |
57c9fafe AL |
1689 | { |
1690 | StringProperty *prop = opaque; | |
1691 | char *value; | |
1692 | Error *local_err = NULL; | |
1693 | ||
1694 | visit_type_str(v, &value, name, &local_err); | |
1695 | if (local_err) { | |
1696 | error_propagate(errp, local_err); | |
1697 | return; | |
1698 | } | |
1699 | ||
1700 | prop->set(obj, value, errp); | |
1701 | g_free(value); | |
1702 | } | |
1703 | ||
7b7b7d18 PB |
1704 | static void property_release_str(Object *obj, const char *name, |
1705 | void *opaque) | |
57c9fafe AL |
1706 | { |
1707 | StringProperty *prop = opaque; | |
1708 | g_free(prop); | |
1709 | } | |
1710 | ||
1711 | void object_property_add_str(Object *obj, const char *name, | |
1712 | char *(*get)(Object *, Error **), | |
1713 | void (*set)(Object *, const char *, Error **), | |
1714 | Error **errp) | |
1715 | { | |
a01aedc8 | 1716 | Error *local_err = NULL; |
57c9fafe AL |
1717 | StringProperty *prop = g_malloc0(sizeof(*prop)); |
1718 | ||
1719 | prop->get = get; | |
1720 | prop->set = set; | |
1721 | ||
1722 | object_property_add(obj, name, "string", | |
7b7b7d18 PB |
1723 | get ? property_get_str : NULL, |
1724 | set ? property_set_str : NULL, | |
1725 | property_release_str, | |
a01aedc8 SH |
1726 | prop, &local_err); |
1727 | if (local_err) { | |
1728 | error_propagate(errp, local_err); | |
1729 | g_free(prop); | |
1730 | } | |
57c9fafe | 1731 | } |
745549c8 | 1732 | |
0e558843 AL |
1733 | typedef struct BoolProperty |
1734 | { | |
1735 | bool (*get)(Object *, Error **); | |
1736 | void (*set)(Object *, bool, Error **); | |
1737 | } BoolProperty; | |
1738 | ||
1739 | static void property_get_bool(Object *obj, Visitor *v, void *opaque, | |
1740 | const char *name, Error **errp) | |
1741 | { | |
1742 | BoolProperty *prop = opaque; | |
1743 | bool value; | |
4715d42e MA |
1744 | Error *err = NULL; |
1745 | ||
1746 | value = prop->get(obj, &err); | |
1747 | if (err) { | |
1748 | error_propagate(errp, err); | |
1749 | return; | |
1750 | } | |
0e558843 | 1751 | |
0e558843 AL |
1752 | visit_type_bool(v, &value, name, errp); |
1753 | } | |
1754 | ||
1755 | static void property_set_bool(Object *obj, Visitor *v, void *opaque, | |
1756 | const char *name, Error **errp) | |
1757 | { | |
1758 | BoolProperty *prop = opaque; | |
1759 | bool value; | |
1760 | Error *local_err = NULL; | |
1761 | ||
1762 | visit_type_bool(v, &value, name, &local_err); | |
1763 | if (local_err) { | |
1764 | error_propagate(errp, local_err); | |
1765 | return; | |
1766 | } | |
1767 | ||
1768 | prop->set(obj, value, errp); | |
1769 | } | |
1770 | ||
1771 | static void property_release_bool(Object *obj, const char *name, | |
1772 | void *opaque) | |
1773 | { | |
1774 | BoolProperty *prop = opaque; | |
1775 | g_free(prop); | |
1776 | } | |
1777 | ||
1778 | void object_property_add_bool(Object *obj, const char *name, | |
1779 | bool (*get)(Object *, Error **), | |
1780 | void (*set)(Object *, bool, Error **), | |
1781 | Error **errp) | |
1782 | { | |
a01aedc8 | 1783 | Error *local_err = NULL; |
0e558843 AL |
1784 | BoolProperty *prop = g_malloc0(sizeof(*prop)); |
1785 | ||
1786 | prop->get = get; | |
1787 | prop->set = set; | |
1788 | ||
1789 | object_property_add(obj, name, "bool", | |
1790 | get ? property_get_bool : NULL, | |
1791 | set ? property_set_bool : NULL, | |
1792 | property_release_bool, | |
a01aedc8 SH |
1793 | prop, &local_err); |
1794 | if (local_err) { | |
1795 | error_propagate(errp, local_err); | |
1796 | g_free(prop); | |
1797 | } | |
0e558843 AL |
1798 | } |
1799 | ||
a8e3fbed DB |
1800 | static void property_get_enum(Object *obj, Visitor *v, void *opaque, |
1801 | const char *name, Error **errp) | |
1802 | { | |
1803 | EnumProperty *prop = opaque; | |
1804 | int value; | |
4715d42e MA |
1805 | Error *err = NULL; |
1806 | ||
1807 | value = prop->get(obj, &err); | |
1808 | if (err) { | |
1809 | error_propagate(errp, err); | |
1810 | return; | |
1811 | } | |
a8e3fbed | 1812 | |
a8e3fbed DB |
1813 | visit_type_enum(v, &value, prop->strings, NULL, name, errp); |
1814 | } | |
1815 | ||
1816 | static void property_set_enum(Object *obj, Visitor *v, void *opaque, | |
1817 | const char *name, Error **errp) | |
1818 | { | |
1819 | EnumProperty *prop = opaque; | |
1820 | int value; | |
4715d42e | 1821 | Error *err = NULL; |
a8e3fbed | 1822 | |
4715d42e MA |
1823 | visit_type_enum(v, &value, prop->strings, NULL, name, &err); |
1824 | if (err) { | |
1825 | error_propagate(errp, err); | |
1826 | return; | |
1827 | } | |
a8e3fbed DB |
1828 | prop->set(obj, value, errp); |
1829 | } | |
1830 | ||
1831 | static void property_release_enum(Object *obj, const char *name, | |
1832 | void *opaque) | |
1833 | { | |
1834 | EnumProperty *prop = opaque; | |
1835 | g_free(prop); | |
1836 | } | |
1837 | ||
1838 | void object_property_add_enum(Object *obj, const char *name, | |
1839 | const char *typename, | |
1840 | const char * const *strings, | |
1841 | int (*get)(Object *, Error **), | |
1842 | void (*set)(Object *, int, Error **), | |
1843 | Error **errp) | |
1844 | { | |
1845 | Error *local_err = NULL; | |
1846 | EnumProperty *prop = g_malloc(sizeof(*prop)); | |
1847 | ||
1848 | prop->strings = strings; | |
1849 | prop->get = get; | |
1850 | prop->set = set; | |
1851 | ||
1852 | object_property_add(obj, name, typename, | |
1853 | get ? property_get_enum : NULL, | |
1854 | set ? property_set_enum : NULL, | |
1855 | property_release_enum, | |
1856 | prop, &local_err); | |
1857 | if (local_err) { | |
1858 | error_propagate(errp, local_err); | |
1859 | g_free(prop); | |
1860 | } | |
1861 | } | |
1862 | ||
8e099d14 DG |
1863 | typedef struct TMProperty { |
1864 | void (*get)(Object *, struct tm *, Error **); | |
1865 | } TMProperty; | |
1866 | ||
1867 | static void property_get_tm(Object *obj, Visitor *v, void *opaque, | |
1868 | const char *name, Error **errp) | |
1869 | { | |
1870 | TMProperty *prop = opaque; | |
1871 | Error *err = NULL; | |
1872 | struct tm value; | |
1873 | ||
1874 | prop->get(obj, &value, &err); | |
1875 | if (err) { | |
1876 | goto out; | |
1877 | } | |
1878 | ||
1879 | visit_start_struct(v, NULL, "struct tm", name, 0, &err); | |
1880 | if (err) { | |
1881 | goto out; | |
1882 | } | |
1883 | visit_type_int32(v, &value.tm_year, "tm_year", &err); | |
1884 | if (err) { | |
1885 | goto out_end; | |
1886 | } | |
1887 | visit_type_int32(v, &value.tm_mon, "tm_mon", &err); | |
1888 | if (err) { | |
1889 | goto out_end; | |
1890 | } | |
1891 | visit_type_int32(v, &value.tm_mday, "tm_mday", &err); | |
1892 | if (err) { | |
1893 | goto out_end; | |
1894 | } | |
1895 | visit_type_int32(v, &value.tm_hour, "tm_hour", &err); | |
1896 | if (err) { | |
1897 | goto out_end; | |
1898 | } | |
1899 | visit_type_int32(v, &value.tm_min, "tm_min", &err); | |
1900 | if (err) { | |
1901 | goto out_end; | |
1902 | } | |
1903 | visit_type_int32(v, &value.tm_sec, "tm_sec", &err); | |
1904 | if (err) { | |
1905 | goto out_end; | |
1906 | } | |
1907 | out_end: | |
1908 | error_propagate(errp, err); | |
1909 | err = NULL; | |
1910 | visit_end_struct(v, errp); | |
1911 | out: | |
1912 | error_propagate(errp, err); | |
1913 | ||
1914 | } | |
1915 | ||
1916 | static void property_release_tm(Object *obj, const char *name, | |
1917 | void *opaque) | |
1918 | { | |
1919 | TMProperty *prop = opaque; | |
1920 | g_free(prop); | |
1921 | } | |
1922 | ||
1923 | void object_property_add_tm(Object *obj, const char *name, | |
1924 | void (*get)(Object *, struct tm *, Error **), | |
1925 | Error **errp) | |
1926 | { | |
1927 | Error *local_err = NULL; | |
1928 | TMProperty *prop = g_malloc0(sizeof(*prop)); | |
1929 | ||
1930 | prop->get = get; | |
1931 | ||
1932 | object_property_add(obj, name, "struct tm", | |
1933 | get ? property_get_tm : NULL, NULL, | |
1934 | property_release_tm, | |
1935 | prop, &local_err); | |
1936 | if (local_err) { | |
1937 | error_propagate(errp, local_err); | |
1938 | g_free(prop); | |
1939 | } | |
1940 | } | |
1941 | ||
2f262e06 PB |
1942 | static char *qdev_get_type(Object *obj, Error **errp) |
1943 | { | |
1944 | return g_strdup(object_get_typename(obj)); | |
1945 | } | |
1946 | ||
e732ea63 MT |
1947 | static void property_get_uint8_ptr(Object *obj, Visitor *v, |
1948 | void *opaque, const char *name, | |
1949 | Error **errp) | |
1950 | { | |
1951 | uint8_t value = *(uint8_t *)opaque; | |
1952 | visit_type_uint8(v, &value, name, errp); | |
1953 | } | |
1954 | ||
1955 | static void property_get_uint16_ptr(Object *obj, Visitor *v, | |
1956 | void *opaque, const char *name, | |
1957 | Error **errp) | |
1958 | { | |
1959 | uint16_t value = *(uint16_t *)opaque; | |
1960 | visit_type_uint16(v, &value, name, errp); | |
1961 | } | |
1962 | ||
1963 | static void property_get_uint32_ptr(Object *obj, Visitor *v, | |
1964 | void *opaque, const char *name, | |
1965 | Error **errp) | |
1966 | { | |
1967 | uint32_t value = *(uint32_t *)opaque; | |
1968 | visit_type_uint32(v, &value, name, errp); | |
1969 | } | |
1970 | ||
1971 | static void property_get_uint64_ptr(Object *obj, Visitor *v, | |
1972 | void *opaque, const char *name, | |
1973 | Error **errp) | |
1974 | { | |
1975 | uint64_t value = *(uint64_t *)opaque; | |
1976 | visit_type_uint64(v, &value, name, errp); | |
1977 | } | |
1978 | ||
1979 | void object_property_add_uint8_ptr(Object *obj, const char *name, | |
1980 | const uint8_t *v, Error **errp) | |
1981 | { | |
1982 | object_property_add(obj, name, "uint8", property_get_uint8_ptr, | |
1983 | NULL, NULL, (void *)v, errp); | |
1984 | } | |
1985 | ||
1986 | void object_property_add_uint16_ptr(Object *obj, const char *name, | |
1987 | const uint16_t *v, Error **errp) | |
1988 | { | |
1989 | object_property_add(obj, name, "uint16", property_get_uint16_ptr, | |
1990 | NULL, NULL, (void *)v, errp); | |
1991 | } | |
1992 | ||
1993 | void object_property_add_uint32_ptr(Object *obj, const char *name, | |
1994 | const uint32_t *v, Error **errp) | |
1995 | { | |
1996 | object_property_add(obj, name, "uint32", property_get_uint32_ptr, | |
1997 | NULL, NULL, (void *)v, errp); | |
1998 | } | |
1999 | ||
2000 | void object_property_add_uint64_ptr(Object *obj, const char *name, | |
2001 | const uint64_t *v, Error **errp) | |
2002 | { | |
2003 | object_property_add(obj, name, "uint64", property_get_uint64_ptr, | |
2004 | NULL, NULL, (void *)v, errp); | |
2005 | } | |
2006 | ||
ef7c7ff6 SH |
2007 | typedef struct { |
2008 | Object *target_obj; | |
1590d266 | 2009 | char *target_name; |
ef7c7ff6 SH |
2010 | } AliasProperty; |
2011 | ||
2012 | static void property_get_alias(Object *obj, struct Visitor *v, void *opaque, | |
2013 | const char *name, Error **errp) | |
2014 | { | |
2015 | AliasProperty *prop = opaque; | |
2016 | ||
2017 | object_property_get(prop->target_obj, v, prop->target_name, errp); | |
2018 | } | |
2019 | ||
2020 | static void property_set_alias(Object *obj, struct Visitor *v, void *opaque, | |
2021 | const char *name, Error **errp) | |
2022 | { | |
2023 | AliasProperty *prop = opaque; | |
2024 | ||
2025 | object_property_set(prop->target_obj, v, prop->target_name, errp); | |
2026 | } | |
2027 | ||
64607d08 PB |
2028 | static Object *property_resolve_alias(Object *obj, void *opaque, |
2029 | const gchar *part) | |
2030 | { | |
2031 | AliasProperty *prop = opaque; | |
2032 | ||
2033 | return object_resolve_path_component(prop->target_obj, prop->target_name); | |
2034 | } | |
2035 | ||
ef7c7ff6 SH |
2036 | static void property_release_alias(Object *obj, const char *name, void *opaque) |
2037 | { | |
2038 | AliasProperty *prop = opaque; | |
2039 | ||
1590d266 | 2040 | g_free(prop->target_name); |
ef7c7ff6 SH |
2041 | g_free(prop); |
2042 | } | |
2043 | ||
2044 | void object_property_add_alias(Object *obj, const char *name, | |
2045 | Object *target_obj, const char *target_name, | |
2046 | Error **errp) | |
2047 | { | |
2048 | AliasProperty *prop; | |
64607d08 | 2049 | ObjectProperty *op; |
ef7c7ff6 | 2050 | ObjectProperty *target_prop; |
d190698e | 2051 | gchar *prop_type; |
8ae9a9ef | 2052 | Error *local_err = NULL; |
ef7c7ff6 SH |
2053 | |
2054 | target_prop = object_property_find(target_obj, target_name, errp); | |
2055 | if (!target_prop) { | |
2056 | return; | |
2057 | } | |
2058 | ||
d190698e PB |
2059 | if (object_property_is_child(target_prop)) { |
2060 | prop_type = g_strdup_printf("link%s", | |
2061 | target_prop->type + strlen("child")); | |
2062 | } else { | |
2063 | prop_type = g_strdup(target_prop->type); | |
2064 | } | |
2065 | ||
ef7c7ff6 SH |
2066 | prop = g_malloc(sizeof(*prop)); |
2067 | prop->target_obj = target_obj; | |
1590d266 | 2068 | prop->target_name = g_strdup(target_name); |
ef7c7ff6 | 2069 | |
d190698e | 2070 | op = object_property_add(obj, name, prop_type, |
64607d08 PB |
2071 | property_get_alias, |
2072 | property_set_alias, | |
2073 | property_release_alias, | |
8ae9a9ef GA |
2074 | prop, &local_err); |
2075 | if (local_err) { | |
2076 | error_propagate(errp, local_err); | |
2077 | g_free(prop); | |
2078 | goto out; | |
2079 | } | |
64607d08 | 2080 | op->resolve = property_resolve_alias; |
d190698e | 2081 | |
a18bb417 | 2082 | object_property_set_description(obj, op->name, |
80742642 GA |
2083 | target_prop->description, |
2084 | &error_abort); | |
2085 | ||
8ae9a9ef | 2086 | out: |
d190698e | 2087 | g_free(prop_type); |
ef7c7ff6 SH |
2088 | } |
2089 | ||
80742642 GA |
2090 | void object_property_set_description(Object *obj, const char *name, |
2091 | const char *description, Error **errp) | |
2092 | { | |
2093 | ObjectProperty *op; | |
2094 | ||
2095 | op = object_property_find(obj, name, errp); | |
2096 | if (!op) { | |
2097 | return; | |
2098 | } | |
2099 | ||
2100 | g_free(op->description); | |
2101 | op->description = g_strdup(description); | |
2102 | } | |
2103 | ||
2f262e06 PB |
2104 | static void object_instance_init(Object *obj) |
2105 | { | |
2106 | object_property_add_str(obj, "type", qdev_get_type, NULL, NULL); | |
2107 | } | |
2108 | ||
745549c8 PB |
2109 | static void register_types(void) |
2110 | { | |
2111 | static TypeInfo interface_info = { | |
2112 | .name = TYPE_INTERFACE, | |
33e95c63 | 2113 | .class_size = sizeof(InterfaceClass), |
745549c8 PB |
2114 | .abstract = true, |
2115 | }; | |
2116 | ||
2117 | static TypeInfo object_info = { | |
2118 | .name = TYPE_OBJECT, | |
2119 | .instance_size = sizeof(Object), | |
2f262e06 | 2120 | .instance_init = object_instance_init, |
745549c8 PB |
2121 | .abstract = true, |
2122 | }; | |
2123 | ||
049cb3cf PB |
2124 | type_interface = type_register_internal(&interface_info); |
2125 | type_register_internal(&object_info); | |
745549c8 PB |
2126 | } |
2127 | ||
2128 | type_init(register_types) |