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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 | ||
9bbc853b | 13 | #include "qemu/osdep.h" |
da34e65c | 14 | #include "qapi/error.h" |
14cccb61 | 15 | #include "qom/object.h" |
a31bdae5 | 16 | #include "qom/object_interfaces.h" |
f348b6d1 | 17 | #include "qemu/cutils.h" |
7b1b5d19 | 18 | #include "qapi/visitor.h" |
1f21772d | 19 | #include "qapi-visit.h" |
b2cd7dee PB |
20 | #include "qapi/string-input-visitor.h" |
21 | #include "qapi/string-output-visitor.h" | |
7b1b5d19 | 22 | #include "qapi/qmp/qerror.h" |
fa131d94 | 23 | #include "trace.h" |
2f28d2ff | 24 | |
7b7b7d18 PB |
25 | /* TODO: replace QObject with a simpler visitor to avoid a dependency |
26 | * of the QOM core on QObject? */ | |
14cccb61 | 27 | #include "qom/qom-qobject.h" |
7b1b5d19 PB |
28 | #include "qapi/qmp/qobject.h" |
29 | #include "qapi/qmp/qbool.h" | |
7b1b5d19 | 30 | #include "qapi/qmp/qstring.h" |
7b7b7d18 | 31 | |
2f28d2ff AL |
32 | #define MAX_INTERFACES 32 |
33 | ||
34 | typedef struct InterfaceImpl InterfaceImpl; | |
35 | typedef struct TypeImpl TypeImpl; | |
36 | ||
37 | struct InterfaceImpl | |
38 | { | |
33e95c63 | 39 | const char *typename; |
2f28d2ff AL |
40 | }; |
41 | ||
42 | struct TypeImpl | |
43 | { | |
44 | const char *name; | |
45 | ||
46 | size_t class_size; | |
47 | ||
48 | size_t instance_size; | |
49 | ||
50 | void (*class_init)(ObjectClass *klass, void *data); | |
3b50e311 | 51 | void (*class_base_init)(ObjectClass *klass, void *data); |
2f28d2ff AL |
52 | void (*class_finalize)(ObjectClass *klass, void *data); |
53 | ||
54 | void *class_data; | |
55 | ||
56 | void (*instance_init)(Object *obj); | |
8231c2dd | 57 | void (*instance_post_init)(Object *obj); |
2f28d2ff AL |
58 | void (*instance_finalize)(Object *obj); |
59 | ||
60 | bool abstract; | |
61 | ||
62 | const char *parent; | |
63 | TypeImpl *parent_type; | |
64 | ||
65 | ObjectClass *class; | |
66 | ||
67 | int num_interfaces; | |
68 | InterfaceImpl interfaces[MAX_INTERFACES]; | |
69 | }; | |
70 | ||
9970bd88 PB |
71 | static Type type_interface; |
72 | ||
2f28d2ff AL |
73 | static GHashTable *type_table_get(void) |
74 | { | |
75 | static GHashTable *type_table; | |
76 | ||
77 | if (type_table == NULL) { | |
78 | type_table = g_hash_table_new(g_str_hash, g_str_equal); | |
79 | } | |
80 | ||
81 | return type_table; | |
82 | } | |
83 | ||
f54c19ca HP |
84 | static bool enumerating_types; |
85 | ||
2f28d2ff AL |
86 | static void type_table_add(TypeImpl *ti) |
87 | { | |
f54c19ca | 88 | assert(!enumerating_types); |
2f28d2ff AL |
89 | g_hash_table_insert(type_table_get(), (void *)ti->name, ti); |
90 | } | |
91 | ||
92 | static TypeImpl *type_table_lookup(const char *name) | |
93 | { | |
94 | return g_hash_table_lookup(type_table_get(), name); | |
95 | } | |
96 | ||
b061dc41 | 97 | static TypeImpl *type_new(const TypeInfo *info) |
2f28d2ff AL |
98 | { |
99 | TypeImpl *ti = g_malloc0(sizeof(*ti)); | |
33e95c63 | 100 | int i; |
2f28d2ff AL |
101 | |
102 | g_assert(info->name != NULL); | |
103 | ||
73093354 AL |
104 | if (type_table_lookup(info->name) != NULL) { |
105 | fprintf(stderr, "Registering `%s' which already exists\n", info->name); | |
106 | abort(); | |
107 | } | |
108 | ||
2f28d2ff AL |
109 | ti->name = g_strdup(info->name); |
110 | ti->parent = g_strdup(info->parent); | |
111 | ||
112 | ti->class_size = info->class_size; | |
113 | ti->instance_size = info->instance_size; | |
114 | ||
115 | ti->class_init = info->class_init; | |
3b50e311 | 116 | ti->class_base_init = info->class_base_init; |
2f28d2ff AL |
117 | ti->class_finalize = info->class_finalize; |
118 | ti->class_data = info->class_data; | |
119 | ||
120 | ti->instance_init = info->instance_init; | |
8231c2dd | 121 | ti->instance_post_init = info->instance_post_init; |
2f28d2ff AL |
122 | ti->instance_finalize = info->instance_finalize; |
123 | ||
124 | ti->abstract = info->abstract; | |
125 | ||
33e95c63 AL |
126 | for (i = 0; info->interfaces && info->interfaces[i].type; i++) { |
127 | ti->interfaces[i].typename = g_strdup(info->interfaces[i].type); | |
2f28d2ff | 128 | } |
33e95c63 | 129 | ti->num_interfaces = i; |
2f28d2ff | 130 | |
b061dc41 PB |
131 | return ti; |
132 | } | |
2f28d2ff | 133 | |
b061dc41 PB |
134 | static TypeImpl *type_register_internal(const TypeInfo *info) |
135 | { | |
136 | TypeImpl *ti; | |
137 | ti = type_new(info); | |
138 | ||
139 | type_table_add(ti); | |
2f28d2ff AL |
140 | return ti; |
141 | } | |
142 | ||
049cb3cf PB |
143 | TypeImpl *type_register(const TypeInfo *info) |
144 | { | |
145 | assert(info->parent); | |
146 | return type_register_internal(info); | |
147 | } | |
148 | ||
2f28d2ff AL |
149 | TypeImpl *type_register_static(const TypeInfo *info) |
150 | { | |
151 | return type_register(info); | |
152 | } | |
153 | ||
154 | static TypeImpl *type_get_by_name(const char *name) | |
155 | { | |
156 | if (name == NULL) { | |
157 | return NULL; | |
158 | } | |
159 | ||
160 | return type_table_lookup(name); | |
161 | } | |
162 | ||
163 | static TypeImpl *type_get_parent(TypeImpl *type) | |
164 | { | |
165 | if (!type->parent_type && type->parent) { | |
166 | type->parent_type = type_get_by_name(type->parent); | |
167 | g_assert(type->parent_type != NULL); | |
168 | } | |
169 | ||
170 | return type->parent_type; | |
171 | } | |
172 | ||
173 | static bool type_has_parent(TypeImpl *type) | |
174 | { | |
175 | return (type->parent != NULL); | |
176 | } | |
177 | ||
178 | static size_t type_class_get_size(TypeImpl *ti) | |
179 | { | |
180 | if (ti->class_size) { | |
181 | return ti->class_size; | |
182 | } | |
183 | ||
184 | if (type_has_parent(ti)) { | |
185 | return type_class_get_size(type_get_parent(ti)); | |
186 | } | |
187 | ||
188 | return sizeof(ObjectClass); | |
189 | } | |
190 | ||
aca59af6 IM |
191 | static size_t type_object_get_size(TypeImpl *ti) |
192 | { | |
193 | if (ti->instance_size) { | |
194 | return ti->instance_size; | |
195 | } | |
196 | ||
197 | if (type_has_parent(ti)) { | |
198 | return type_object_get_size(type_get_parent(ti)); | |
199 | } | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
3f97b53a BR |
204 | size_t object_type_get_instance_size(const char *typename) |
205 | { | |
206 | TypeImpl *type = type_get_by_name(typename); | |
207 | ||
208 | g_assert(type != NULL); | |
209 | return type_object_get_size(type); | |
210 | } | |
211 | ||
33e95c63 | 212 | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
2f28d2ff | 213 | { |
33e95c63 AL |
214 | assert(target_type); |
215 | ||
b30d8054 | 216 | /* Check if target_type is a direct ancestor of type */ |
33e95c63 AL |
217 | while (type) { |
218 | if (type == target_type) { | |
219 | return true; | |
220 | } | |
2f28d2ff | 221 | |
33e95c63 AL |
222 | type = type_get_parent(type); |
223 | } | |
224 | ||
225 | return false; | |
226 | } | |
227 | ||
228 | static void type_initialize(TypeImpl *ti); | |
229 | ||
b061dc41 PB |
230 | static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type, |
231 | TypeImpl *parent_type) | |
33e95c63 AL |
232 | { |
233 | InterfaceClass *new_iface; | |
234 | TypeInfo info = { }; | |
235 | TypeImpl *iface_impl; | |
236 | ||
b061dc41 PB |
237 | info.parent = parent_type->name; |
238 | info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name); | |
33e95c63 AL |
239 | info.abstract = true; |
240 | ||
b061dc41 PB |
241 | iface_impl = type_new(&info); |
242 | iface_impl->parent_type = parent_type; | |
33e95c63 AL |
243 | type_initialize(iface_impl); |
244 | g_free((char *)info.name); | |
245 | ||
246 | new_iface = (InterfaceClass *)iface_impl->class; | |
247 | new_iface->concrete_class = ti->class; | |
b061dc41 | 248 | new_iface->interface_type = interface_type; |
33e95c63 AL |
249 | |
250 | ti->class->interfaces = g_slist_append(ti->class->interfaces, | |
251 | iface_impl->class); | |
2f28d2ff AL |
252 | } |
253 | ||
16bf7f52 DB |
254 | static void object_property_free(gpointer data) |
255 | { | |
256 | ObjectProperty *prop = data; | |
257 | ||
258 | g_free(prop->name); | |
259 | g_free(prop->type); | |
260 | g_free(prop->description); | |
261 | g_free(prop); | |
262 | } | |
263 | ||
ac451033 | 264 | static void type_initialize(TypeImpl *ti) |
2f28d2ff | 265 | { |
745549c8 | 266 | TypeImpl *parent; |
2f28d2ff AL |
267 | |
268 | if (ti->class) { | |
269 | return; | |
270 | } | |
271 | ||
272 | ti->class_size = type_class_get_size(ti); | |
aca59af6 | 273 | ti->instance_size = type_object_get_size(ti); |
1c6d75d5 EH |
274 | /* Any type with zero instance_size is implicitly abstract. |
275 | * This means interface types are all abstract. | |
276 | */ | |
277 | if (ti->instance_size == 0) { | |
278 | ti->abstract = true; | |
279 | } | |
2f28d2ff AL |
280 | |
281 | ti->class = g_malloc0(ti->class_size); | |
2f28d2ff | 282 | |
745549c8 PB |
283 | parent = type_get_parent(ti); |
284 | if (parent) { | |
ac451033 | 285 | type_initialize(parent); |
33e95c63 AL |
286 | GSList *e; |
287 | int i; | |
2f28d2ff | 288 | |
8438a135 | 289 | g_assert_cmpint(parent->class_size, <=, ti->class_size); |
745549c8 | 290 | memcpy(ti->class, parent->class, parent->class_size); |
3e407de4 | 291 | ti->class->interfaces = NULL; |
16bf7f52 DB |
292 | ti->class->properties = g_hash_table_new_full( |
293 | g_str_hash, g_str_equal, g_free, object_property_free); | |
33e95c63 AL |
294 | |
295 | for (e = parent->class->interfaces; e; e = e->next) { | |
b061dc41 PB |
296 | InterfaceClass *iface = e->data; |
297 | ObjectClass *klass = OBJECT_CLASS(iface); | |
298 | ||
299 | type_initialize_interface(ti, iface->interface_type, klass->type); | |
33e95c63 AL |
300 | } |
301 | ||
302 | for (i = 0; i < ti->num_interfaces; i++) { | |
303 | TypeImpl *t = type_get_by_name(ti->interfaces[i].typename); | |
304 | for (e = ti->class->interfaces; e; e = e->next) { | |
305 | TypeImpl *target_type = OBJECT_CLASS(e->data)->type; | |
306 | ||
307 | if (type_is_ancestor(target_type, t)) { | |
308 | break; | |
309 | } | |
310 | } | |
311 | ||
312 | if (e) { | |
313 | continue; | |
314 | } | |
315 | ||
b061dc41 | 316 | type_initialize_interface(ti, t, t); |
33e95c63 | 317 | } |
16bf7f52 DB |
318 | } else { |
319 | ti->class->properties = g_hash_table_new_full( | |
320 | g_str_hash, g_str_equal, g_free, object_property_free); | |
745549c8 | 321 | } |
2f28d2ff | 322 | |
745549c8 | 323 | ti->class->type = ti; |
3b50e311 | 324 | |
745549c8 PB |
325 | while (parent) { |
326 | if (parent->class_base_init) { | |
327 | parent->class_base_init(ti->class, ti->class_data); | |
3b50e311 | 328 | } |
745549c8 | 329 | parent = type_get_parent(parent); |
2f28d2ff AL |
330 | } |
331 | ||
2f28d2ff AL |
332 | if (ti->class_init) { |
333 | ti->class_init(ti->class, ti->class_data); | |
334 | } | |
2f28d2ff AL |
335 | } |
336 | ||
337 | static void object_init_with_type(Object *obj, TypeImpl *ti) | |
338 | { | |
2f28d2ff AL |
339 | if (type_has_parent(ti)) { |
340 | object_init_with_type(obj, type_get_parent(ti)); | |
341 | } | |
342 | ||
2f28d2ff AL |
343 | if (ti->instance_init) { |
344 | ti->instance_init(obj); | |
345 | } | |
346 | } | |
347 | ||
8231c2dd EH |
348 | static void object_post_init_with_type(Object *obj, TypeImpl *ti) |
349 | { | |
350 | if (ti->instance_post_init) { | |
351 | ti->instance_post_init(obj); | |
352 | } | |
353 | ||
354 | if (type_has_parent(ti)) { | |
355 | object_post_init_with_type(obj, type_get_parent(ti)); | |
356 | } | |
357 | } | |
358 | ||
63f7b10b | 359 | static void object_initialize_with_type(void *data, size_t size, TypeImpl *type) |
2f28d2ff AL |
360 | { |
361 | Object *obj = data; | |
362 | ||
363 | g_assert(type != NULL); | |
ac451033 | 364 | type_initialize(type); |
aca59af6 | 365 | |
8438a135 | 366 | g_assert_cmpint(type->instance_size, >=, sizeof(Object)); |
2f28d2ff | 367 | g_assert(type->abstract == false); |
8438a135 | 368 | g_assert_cmpint(size, >=, type->instance_size); |
2f28d2ff AL |
369 | |
370 | memset(obj, 0, type->instance_size); | |
371 | obj->class = type->class; | |
764b6312 | 372 | object_ref(obj); |
b604a854 PF |
373 | obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal, |
374 | NULL, object_property_free); | |
2f28d2ff | 375 | object_init_with_type(obj, type); |
8231c2dd | 376 | object_post_init_with_type(obj, type); |
2f28d2ff AL |
377 | } |
378 | ||
213f0c4f | 379 | void object_initialize(void *data, size_t size, const char *typename) |
2f28d2ff AL |
380 | { |
381 | TypeImpl *type = type_get_by_name(typename); | |
382 | ||
5b9237f6 | 383 | object_initialize_with_type(data, size, type); |
2f28d2ff AL |
384 | } |
385 | ||
5d9d3f47 AF |
386 | static inline bool object_property_is_child(ObjectProperty *prop) |
387 | { | |
388 | return strstart(prop->type, "child<", NULL); | |
389 | } | |
390 | ||
57c9fafe AL |
391 | static void object_property_del_all(Object *obj) |
392 | { | |
b604a854 PF |
393 | ObjectProperty *prop; |
394 | GHashTableIter iter; | |
395 | gpointer key, value; | |
396 | bool released; | |
397 | ||
398 | do { | |
399 | released = false; | |
400 | g_hash_table_iter_init(&iter, obj->properties); | |
401 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
402 | prop = value; | |
403 | if (prop->release) { | |
404 | prop->release(obj, prop->name, prop->opaque); | |
405 | prop->release = NULL; | |
406 | released = true; | |
407 | break; | |
408 | } | |
409 | g_hash_table_iter_remove(&iter); | |
57c9fafe | 410 | } |
b604a854 | 411 | } while (released); |
57c9fafe | 412 | |
b604a854 | 413 | g_hash_table_unref(obj->properties); |
57c9fafe AL |
414 | } |
415 | ||
416 | static void object_property_del_child(Object *obj, Object *child, Error **errp) | |
417 | { | |
418 | ObjectProperty *prop; | |
b604a854 PF |
419 | GHashTableIter iter; |
420 | gpointer key, value; | |
57c9fafe | 421 | |
b604a854 PF |
422 | g_hash_table_iter_init(&iter, obj->properties); |
423 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
424 | prop = value; | |
425 | if (object_property_is_child(prop) && prop->opaque == child) { | |
426 | if (prop->release) { | |
427 | prop->release(obj, prop->name, prop->opaque); | |
428 | prop->release = NULL; | |
429 | } | |
430 | break; | |
431 | } | |
432 | } | |
433 | g_hash_table_iter_init(&iter, obj->properties); | |
434 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
435 | prop = value; | |
5d9d3f47 | 436 | if (object_property_is_child(prop) && prop->opaque == child) { |
b604a854 | 437 | g_hash_table_iter_remove(&iter); |
6c1fdcf9 | 438 | break; |
57c9fafe AL |
439 | } |
440 | } | |
441 | } | |
442 | ||
443 | void object_unparent(Object *obj) | |
444 | { | |
e998fa8d MT |
445 | if (obj->parent) { |
446 | object_property_del_child(obj->parent, obj, NULL); | |
447 | } | |
57c9fafe AL |
448 | } |
449 | ||
2f28d2ff AL |
450 | static void object_deinit(Object *obj, TypeImpl *type) |
451 | { | |
452 | if (type->instance_finalize) { | |
453 | type->instance_finalize(obj); | |
454 | } | |
455 | ||
2f28d2ff AL |
456 | if (type_has_parent(type)) { |
457 | object_deinit(obj, type_get_parent(type)); | |
458 | } | |
459 | } | |
460 | ||
339c2708 | 461 | static void object_finalize(void *data) |
2f28d2ff AL |
462 | { |
463 | Object *obj = data; | |
464 | TypeImpl *ti = obj->class->type; | |
465 | ||
57c9fafe | 466 | object_property_del_all(obj); |
76a6e1cc | 467 | object_deinit(obj, ti); |
db85b575 | 468 | |
8438a135 | 469 | g_assert_cmpint(obj->ref, ==, 0); |
fde9bf44 PB |
470 | if (obj->free) { |
471 | obj->free(obj); | |
472 | } | |
2f28d2ff AL |
473 | } |
474 | ||
63f7b10b | 475 | static Object *object_new_with_type(Type type) |
2f28d2ff AL |
476 | { |
477 | Object *obj; | |
478 | ||
479 | g_assert(type != NULL); | |
ac451033 | 480 | type_initialize(type); |
2f28d2ff AL |
481 | |
482 | obj = g_malloc(type->instance_size); | |
5b9237f6 | 483 | object_initialize_with_type(obj, type->instance_size, type); |
fde9bf44 | 484 | obj->free = g_free; |
2f28d2ff AL |
485 | |
486 | return obj; | |
487 | } | |
488 | ||
489 | Object *object_new(const char *typename) | |
490 | { | |
491 | TypeImpl *ti = type_get_by_name(typename); | |
492 | ||
493 | return object_new_with_type(ti); | |
494 | } | |
495 | ||
a31bdae5 DB |
496 | |
497 | Object *object_new_with_props(const char *typename, | |
498 | Object *parent, | |
499 | const char *id, | |
500 | Error **errp, | |
501 | ...) | |
502 | { | |
503 | va_list vargs; | |
504 | Object *obj; | |
505 | ||
506 | va_start(vargs, errp); | |
507 | obj = object_new_with_propv(typename, parent, id, errp, vargs); | |
508 | va_end(vargs); | |
509 | ||
510 | return obj; | |
511 | } | |
512 | ||
513 | ||
514 | Object *object_new_with_propv(const char *typename, | |
515 | Object *parent, | |
516 | const char *id, | |
517 | Error **errp, | |
518 | va_list vargs) | |
519 | { | |
520 | Object *obj; | |
521 | ObjectClass *klass; | |
522 | Error *local_err = NULL; | |
523 | ||
524 | klass = object_class_by_name(typename); | |
525 | if (!klass) { | |
526 | error_setg(errp, "invalid object type: %s", typename); | |
527 | return NULL; | |
528 | } | |
529 | ||
530 | if (object_class_is_abstract(klass)) { | |
531 | error_setg(errp, "object type '%s' is abstract", typename); | |
532 | return NULL; | |
533 | } | |
534 | obj = object_new(typename); | |
535 | ||
536 | if (object_set_propv(obj, &local_err, vargs) < 0) { | |
537 | goto error; | |
538 | } | |
539 | ||
540 | object_property_add_child(parent, id, obj, &local_err); | |
541 | if (local_err) { | |
542 | goto error; | |
543 | } | |
544 | ||
545 | if (object_dynamic_cast(obj, TYPE_USER_CREATABLE)) { | |
546 | user_creatable_complete(obj, &local_err); | |
547 | if (local_err) { | |
548 | object_unparent(obj); | |
549 | goto error; | |
550 | } | |
551 | } | |
552 | ||
553 | object_unref(OBJECT(obj)); | |
554 | return obj; | |
555 | ||
556 | error: | |
621ff94d | 557 | error_propagate(errp, local_err); |
a31bdae5 DB |
558 | object_unref(obj); |
559 | return NULL; | |
560 | } | |
561 | ||
562 | ||
563 | int object_set_props(Object *obj, | |
564 | Error **errp, | |
565 | ...) | |
566 | { | |
567 | va_list vargs; | |
568 | int ret; | |
569 | ||
570 | va_start(vargs, errp); | |
571 | ret = object_set_propv(obj, errp, vargs); | |
572 | va_end(vargs); | |
573 | ||
574 | return ret; | |
575 | } | |
576 | ||
577 | ||
578 | int object_set_propv(Object *obj, | |
579 | Error **errp, | |
580 | va_list vargs) | |
581 | { | |
582 | const char *propname; | |
583 | Error *local_err = NULL; | |
584 | ||
585 | propname = va_arg(vargs, char *); | |
586 | while (propname != NULL) { | |
587 | const char *value = va_arg(vargs, char *); | |
588 | ||
589 | g_assert(value != NULL); | |
590 | object_property_parse(obj, value, propname, &local_err); | |
591 | if (local_err) { | |
592 | error_propagate(errp, local_err); | |
593 | return -1; | |
594 | } | |
595 | propname = va_arg(vargs, char *); | |
596 | } | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
601 | ||
2f28d2ff AL |
602 | Object *object_dynamic_cast(Object *obj, const char *typename) |
603 | { | |
b7f43fe4 | 604 | if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) { |
acc4af3f PB |
605 | return obj; |
606 | } | |
607 | ||
2f28d2ff AL |
608 | return NULL; |
609 | } | |
610 | ||
be17f18b PB |
611 | Object *object_dynamic_cast_assert(Object *obj, const char *typename, |
612 | const char *file, int line, const char *func) | |
2f28d2ff | 613 | { |
fa131d94 PB |
614 | trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)", |
615 | typename, file, line, func); | |
616 | ||
3556c233 | 617 | #ifdef CONFIG_QOM_CAST_DEBUG |
03587328 AL |
618 | int i; |
619 | Object *inst; | |
620 | ||
95916abc | 621 | for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) { |
b6b3ccfd | 622 | if (atomic_read(&obj->class->object_cast_cache[i]) == typename) { |
03587328 AL |
623 | goto out; |
624 | } | |
625 | } | |
626 | ||
627 | inst = object_dynamic_cast(obj, typename); | |
2f28d2ff | 628 | |
b7f43fe4 | 629 | if (!inst && obj) { |
be17f18b PB |
630 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
631 | file, line, func, obj, typename); | |
2f28d2ff AL |
632 | abort(); |
633 | } | |
634 | ||
3556c233 | 635 | assert(obj == inst); |
03587328 | 636 | |
95916abc | 637 | if (obj && obj == inst) { |
03587328 | 638 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
b6b3ccfd AB |
639 | atomic_set(&obj->class->object_cast_cache[i - 1], |
640 | atomic_read(&obj->class->object_cast_cache[i])); | |
03587328 | 641 | } |
b6b3ccfd | 642 | atomic_set(&obj->class->object_cast_cache[i - 1], typename); |
03587328 AL |
643 | } |
644 | ||
645 | out: | |
3556c233 PB |
646 | #endif |
647 | return obj; | |
2f28d2ff AL |
648 | } |
649 | ||
650 | ObjectClass *object_class_dynamic_cast(ObjectClass *class, | |
651 | const char *typename) | |
652 | { | |
33e95c63 | 653 | ObjectClass *ret = NULL; |
bf0fda34 PB |
654 | TypeImpl *target_type; |
655 | TypeImpl *type; | |
2f28d2ff | 656 | |
bf0fda34 PB |
657 | if (!class) { |
658 | return NULL; | |
659 | } | |
660 | ||
793c96b5 | 661 | /* A simple fast path that can trigger a lot for leaf classes. */ |
bf0fda34 | 662 | type = class->type; |
793c96b5 PB |
663 | if (type->name == typename) { |
664 | return class; | |
665 | } | |
666 | ||
bf0fda34 | 667 | target_type = type_get_by_name(typename); |
9ab880b3 AG |
668 | if (!target_type) { |
669 | /* target class type unknown, so fail the cast */ | |
670 | return NULL; | |
671 | } | |
672 | ||
00e2ceae PC |
673 | if (type->class->interfaces && |
674 | type_is_ancestor(target_type, type_interface)) { | |
33e95c63 AL |
675 | int found = 0; |
676 | GSList *i; | |
2f28d2ff | 677 | |
33e95c63 AL |
678 | for (i = class->interfaces; i; i = i->next) { |
679 | ObjectClass *target_class = i->data; | |
680 | ||
681 | if (type_is_ancestor(target_class->type, target_type)) { | |
682 | ret = target_class; | |
683 | found++; | |
684 | } | |
685 | } | |
686 | ||
687 | /* The match was ambiguous, don't allow a cast */ | |
688 | if (found > 1) { | |
689 | ret = NULL; | |
690 | } | |
691 | } else if (type_is_ancestor(type, target_type)) { | |
692 | ret = class; | |
2f28d2ff AL |
693 | } |
694 | ||
33e95c63 | 695 | return ret; |
2f28d2ff AL |
696 | } |
697 | ||
698 | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, | |
be17f18b PB |
699 | const char *typename, |
700 | const char *file, int line, | |
701 | const char *func) | |
2f28d2ff | 702 | { |
fa131d94 PB |
703 | ObjectClass *ret; |
704 | ||
705 | trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)", | |
706 | typename, file, line, func); | |
2f28d2ff | 707 | |
03587328 AL |
708 | #ifdef CONFIG_QOM_CAST_DEBUG |
709 | int i; | |
710 | ||
9d6a3d58 | 711 | for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) { |
b6b3ccfd | 712 | if (atomic_read(&class->class_cast_cache[i]) == typename) { |
03587328 AL |
713 | ret = class; |
714 | goto out; | |
715 | } | |
716 | } | |
717 | #else | |
9d6a3d58 | 718 | if (!class || !class->interfaces) { |
3556c233 PB |
719 | return class; |
720 | } | |
721 | #endif | |
722 | ||
fa131d94 | 723 | ret = object_class_dynamic_cast(class, typename); |
bf0fda34 | 724 | if (!ret && class) { |
be17f18b PB |
725 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
726 | file, line, func, class, typename); | |
2f28d2ff AL |
727 | abort(); |
728 | } | |
729 | ||
03587328 | 730 | #ifdef CONFIG_QOM_CAST_DEBUG |
9d6a3d58 | 731 | if (class && ret == class) { |
03587328 | 732 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
b6b3ccfd AB |
733 | atomic_set(&class->class_cast_cache[i - 1], |
734 | atomic_read(&class->class_cast_cache[i])); | |
03587328 | 735 | } |
b6b3ccfd | 736 | atomic_set(&class->class_cast_cache[i - 1], typename); |
03587328 AL |
737 | } |
738 | out: | |
739 | #endif | |
2f28d2ff AL |
740 | return ret; |
741 | } | |
742 | ||
743 | const char *object_get_typename(Object *obj) | |
744 | { | |
745 | return obj->class->type->name; | |
746 | } | |
747 | ||
748 | ObjectClass *object_get_class(Object *obj) | |
749 | { | |
750 | return obj->class; | |
751 | } | |
752 | ||
17862378 AF |
753 | bool object_class_is_abstract(ObjectClass *klass) |
754 | { | |
755 | return klass->type->abstract; | |
756 | } | |
757 | ||
2f28d2ff AL |
758 | const char *object_class_get_name(ObjectClass *klass) |
759 | { | |
760 | return klass->type->name; | |
761 | } | |
762 | ||
763 | ObjectClass *object_class_by_name(const char *typename) | |
764 | { | |
765 | TypeImpl *type = type_get_by_name(typename); | |
766 | ||
767 | if (!type) { | |
768 | return NULL; | |
769 | } | |
770 | ||
ac451033 | 771 | type_initialize(type); |
2f28d2ff AL |
772 | |
773 | return type->class; | |
774 | } | |
775 | ||
e7cce67f PB |
776 | ObjectClass *object_class_get_parent(ObjectClass *class) |
777 | { | |
778 | TypeImpl *type = type_get_parent(class->type); | |
779 | ||
780 | if (!type) { | |
781 | return NULL; | |
782 | } | |
783 | ||
784 | type_initialize(type); | |
785 | ||
786 | return type->class; | |
787 | } | |
788 | ||
2f28d2ff AL |
789 | typedef struct OCFData |
790 | { | |
791 | void (*fn)(ObjectClass *klass, void *opaque); | |
93c511a1 AL |
792 | const char *implements_type; |
793 | bool include_abstract; | |
2f28d2ff AL |
794 | void *opaque; |
795 | } OCFData; | |
796 | ||
797 | static void object_class_foreach_tramp(gpointer key, gpointer value, | |
798 | gpointer opaque) | |
799 | { | |
800 | OCFData *data = opaque; | |
801 | TypeImpl *type = value; | |
93c511a1 | 802 | ObjectClass *k; |
2f28d2ff | 803 | |
ac451033 | 804 | type_initialize(type); |
93c511a1 | 805 | k = type->class; |
2f28d2ff | 806 | |
93c511a1 AL |
807 | if (!data->include_abstract && type->abstract) { |
808 | return; | |
809 | } | |
810 | ||
811 | if (data->implements_type && | |
812 | !object_class_dynamic_cast(k, data->implements_type)) { | |
813 | return; | |
814 | } | |
815 | ||
816 | data->fn(k, data->opaque); | |
2f28d2ff AL |
817 | } |
818 | ||
819 | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), | |
93c511a1 | 820 | const char *implements_type, bool include_abstract, |
2f28d2ff AL |
821 | void *opaque) |
822 | { | |
93c511a1 | 823 | OCFData data = { fn, implements_type, include_abstract, opaque }; |
2f28d2ff | 824 | |
f54c19ca | 825 | enumerating_types = true; |
2f28d2ff | 826 | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
f54c19ca | 827 | enumerating_types = false; |
2f28d2ff | 828 | } |
57c9fafe | 829 | |
d714b8de PC |
830 | static int do_object_child_foreach(Object *obj, |
831 | int (*fn)(Object *child, void *opaque), | |
832 | void *opaque, bool recurse) | |
32efc535 | 833 | { |
b604a854 PF |
834 | GHashTableIter iter; |
835 | ObjectProperty *prop; | |
32efc535 PB |
836 | int ret = 0; |
837 | ||
b604a854 PF |
838 | g_hash_table_iter_init(&iter, obj->properties); |
839 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
32efc535 | 840 | if (object_property_is_child(prop)) { |
d714b8de PC |
841 | Object *child = prop->opaque; |
842 | ||
843 | ret = fn(child, opaque); | |
32efc535 PB |
844 | if (ret != 0) { |
845 | break; | |
846 | } | |
d714b8de PC |
847 | if (recurse) { |
848 | do_object_child_foreach(child, fn, opaque, true); | |
849 | } | |
32efc535 PB |
850 | } |
851 | } | |
852 | return ret; | |
853 | } | |
854 | ||
d714b8de PC |
855 | int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque), |
856 | void *opaque) | |
857 | { | |
858 | return do_object_child_foreach(obj, fn, opaque, false); | |
859 | } | |
860 | ||
861 | int object_child_foreach_recursive(Object *obj, | |
862 | int (*fn)(Object *child, void *opaque), | |
863 | void *opaque) | |
864 | { | |
865 | return do_object_child_foreach(obj, fn, opaque, true); | |
866 | } | |
867 | ||
418ba9e5 AF |
868 | static void object_class_get_list_tramp(ObjectClass *klass, void *opaque) |
869 | { | |
870 | GSList **list = opaque; | |
871 | ||
872 | *list = g_slist_prepend(*list, klass); | |
873 | } | |
874 | ||
875 | GSList *object_class_get_list(const char *implements_type, | |
876 | bool include_abstract) | |
877 | { | |
878 | GSList *list = NULL; | |
879 | ||
880 | object_class_foreach(object_class_get_list_tramp, | |
881 | implements_type, include_abstract, &list); | |
882 | return list; | |
883 | } | |
884 | ||
57c9fafe AL |
885 | void object_ref(Object *obj) |
886 | { | |
8ffad850 PC |
887 | if (!obj) { |
888 | return; | |
889 | } | |
8438a135 | 890 | atomic_inc(&obj->ref); |
57c9fafe AL |
891 | } |
892 | ||
893 | void object_unref(Object *obj) | |
894 | { | |
8ffad850 PC |
895 | if (!obj) { |
896 | return; | |
897 | } | |
8438a135 | 898 | g_assert_cmpint(obj->ref, >, 0); |
57c9fafe AL |
899 | |
900 | /* parent always holds a reference to its children */ | |
f08c03f3 | 901 | if (atomic_fetch_dec(&obj->ref) == 1) { |
57c9fafe AL |
902 | object_finalize(obj); |
903 | } | |
904 | } | |
905 | ||
64607d08 PB |
906 | ObjectProperty * |
907 | object_property_add(Object *obj, const char *name, const char *type, | |
908 | ObjectPropertyAccessor *get, | |
909 | ObjectPropertyAccessor *set, | |
910 | ObjectPropertyRelease *release, | |
911 | void *opaque, Error **errp) | |
57c9fafe | 912 | { |
54852b03 | 913 | ObjectProperty *prop; |
33965904 PC |
914 | size_t name_len = strlen(name); |
915 | ||
916 | if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) { | |
917 | int i; | |
918 | ObjectProperty *ret; | |
919 | char *name_no_array = g_strdup(name); | |
920 | ||
921 | name_no_array[name_len - 3] = '\0'; | |
922 | for (i = 0; ; ++i) { | |
923 | char *full_name = g_strdup_printf("%s[%d]", name_no_array, i); | |
924 | ||
925 | ret = object_property_add(obj, full_name, type, get, set, | |
926 | release, opaque, NULL); | |
927 | g_free(full_name); | |
928 | if (ret) { | |
929 | break; | |
930 | } | |
931 | } | |
932 | g_free(name_no_array); | |
933 | return ret; | |
934 | } | |
54852b03 | 935 | |
16bf7f52 | 936 | if (object_property_find(obj, name, NULL) != NULL) { |
b604a854 | 937 | error_setg(errp, "attempt to add duplicate property '%s'" |
16bf7f52 DB |
938 | " to object (type '%s')", name, |
939 | object_get_typename(obj)); | |
b604a854 | 940 | return NULL; |
54852b03 PM |
941 | } |
942 | ||
943 | prop = g_malloc0(sizeof(*prop)); | |
57c9fafe AL |
944 | |
945 | prop->name = g_strdup(name); | |
946 | prop->type = g_strdup(type); | |
947 | ||
948 | prop->get = get; | |
949 | prop->set = set; | |
950 | prop->release = release; | |
951 | prop->opaque = opaque; | |
952 | ||
b604a854 | 953 | g_hash_table_insert(obj->properties, prop->name, prop); |
64607d08 | 954 | return prop; |
57c9fafe AL |
955 | } |
956 | ||
16bf7f52 DB |
957 | ObjectProperty * |
958 | object_class_property_add(ObjectClass *klass, | |
959 | const char *name, | |
960 | const char *type, | |
961 | ObjectPropertyAccessor *get, | |
962 | ObjectPropertyAccessor *set, | |
963 | ObjectPropertyRelease *release, | |
964 | void *opaque, | |
965 | Error **errp) | |
966 | { | |
967 | ObjectProperty *prop; | |
968 | ||
969 | if (object_class_property_find(klass, name, NULL) != NULL) { | |
970 | error_setg(errp, "attempt to add duplicate property '%s'" | |
971 | " to object (type '%s')", name, | |
972 | object_class_get_name(klass)); | |
973 | return NULL; | |
974 | } | |
975 | ||
976 | prop = g_malloc0(sizeof(*prop)); | |
977 | ||
978 | prop->name = g_strdup(name); | |
979 | prop->type = g_strdup(type); | |
980 | ||
981 | prop->get = get; | |
982 | prop->set = set; | |
983 | prop->release = release; | |
984 | prop->opaque = opaque; | |
985 | ||
986 | g_hash_table_insert(klass->properties, g_strdup(name), prop); | |
987 | ||
988 | return prop; | |
989 | } | |
990 | ||
89bfe000 PB |
991 | ObjectProperty *object_property_find(Object *obj, const char *name, |
992 | Error **errp) | |
57c9fafe AL |
993 | { |
994 | ObjectProperty *prop; | |
16bf7f52 DB |
995 | ObjectClass *klass = object_get_class(obj); |
996 | ||
997 | prop = object_class_property_find(klass, name, NULL); | |
998 | if (prop) { | |
999 | return prop; | |
1000 | } | |
57c9fafe | 1001 | |
b604a854 PF |
1002 | prop = g_hash_table_lookup(obj->properties, name); |
1003 | if (prop) { | |
1004 | return prop; | |
57c9fafe AL |
1005 | } |
1006 | ||
f231b88d | 1007 | error_setg(errp, "Property '.%s' not found", name); |
57c9fafe AL |
1008 | return NULL; |
1009 | } | |
1010 | ||
7746abd8 DB |
1011 | void object_property_iter_init(ObjectPropertyIterator *iter, |
1012 | Object *obj) | |
a00c9482 | 1013 | { |
7746abd8 DB |
1014 | g_hash_table_iter_init(&iter->iter, obj->properties); |
1015 | iter->nextclass = object_get_class(obj); | |
a00c9482 DB |
1016 | } |
1017 | ||
1018 | ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter) | |
1019 | { | |
b604a854 | 1020 | gpointer key, val; |
16bf7f52 DB |
1021 | while (!g_hash_table_iter_next(&iter->iter, &key, &val)) { |
1022 | if (!iter->nextclass) { | |
1023 | return NULL; | |
1024 | } | |
1025 | g_hash_table_iter_init(&iter->iter, iter->nextclass->properties); | |
1026 | iter->nextclass = object_class_get_parent(iter->nextclass); | |
a00c9482 | 1027 | } |
b604a854 | 1028 | return val; |
a00c9482 DB |
1029 | } |
1030 | ||
16bf7f52 DB |
1031 | ObjectProperty *object_class_property_find(ObjectClass *klass, const char *name, |
1032 | Error **errp) | |
1033 | { | |
1034 | ObjectProperty *prop; | |
1035 | ObjectClass *parent_klass; | |
1036 | ||
1037 | parent_klass = object_class_get_parent(klass); | |
1038 | if (parent_klass) { | |
1039 | prop = object_class_property_find(parent_klass, name, NULL); | |
1040 | if (prop) { | |
1041 | return prop; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | prop = g_hash_table_lookup(klass->properties, name); | |
1046 | if (!prop) { | |
1047 | error_setg(errp, "Property '.%s' not found", name); | |
1048 | } | |
1049 | return prop; | |
1050 | } | |
1051 | ||
57c9fafe AL |
1052 | void object_property_del(Object *obj, const char *name, Error **errp) |
1053 | { | |
b604a854 PF |
1054 | ObjectProperty *prop = g_hash_table_lookup(obj->properties, name); |
1055 | ||
1056 | if (!prop) { | |
1057 | error_setg(errp, "Property '.%s' not found", name); | |
0866aca1 AL |
1058 | return; |
1059 | } | |
57c9fafe | 1060 | |
0866aca1 AL |
1061 | if (prop->release) { |
1062 | prop->release(obj, name, prop->opaque); | |
1063 | } | |
b604a854 | 1064 | g_hash_table_remove(obj->properties, name); |
57c9fafe AL |
1065 | } |
1066 | ||
1067 | void object_property_get(Object *obj, Visitor *v, const char *name, | |
1068 | Error **errp) | |
1069 | { | |
89bfe000 | 1070 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1071 | if (prop == NULL) { |
57c9fafe AL |
1072 | return; |
1073 | } | |
1074 | ||
1075 | if (!prop->get) { | |
c6bd8c70 | 1076 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe | 1077 | } else { |
d7bce999 | 1078 | prop->get(obj, v, name, prop->opaque, errp); |
57c9fafe AL |
1079 | } |
1080 | } | |
1081 | ||
1082 | void object_property_set(Object *obj, Visitor *v, const char *name, | |
1083 | Error **errp) | |
1084 | { | |
89bfe000 | 1085 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1086 | if (prop == NULL) { |
57c9fafe AL |
1087 | return; |
1088 | } | |
1089 | ||
1090 | if (!prop->set) { | |
c6bd8c70 | 1091 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe | 1092 | } else { |
d7bce999 | 1093 | prop->set(obj, v, name, prop->opaque, errp); |
57c9fafe AL |
1094 | } |
1095 | } | |
1096 | ||
7b7b7d18 PB |
1097 | void object_property_set_str(Object *obj, const char *value, |
1098 | const char *name, Error **errp) | |
1099 | { | |
1100 | QString *qstr = qstring_from_str(value); | |
1101 | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); | |
1102 | ||
1103 | QDECREF(qstr); | |
1104 | } | |
1105 | ||
1106 | char *object_property_get_str(Object *obj, const char *name, | |
1107 | Error **errp) | |
1108 | { | |
1109 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1110 | QString *qstring; | |
1111 | char *retval; | |
1112 | ||
1113 | if (!ret) { | |
1114 | return NULL; | |
1115 | } | |
1116 | qstring = qobject_to_qstring(ret); | |
1117 | if (!qstring) { | |
c6bd8c70 | 1118 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string"); |
7b7b7d18 PB |
1119 | retval = NULL; |
1120 | } else { | |
1121 | retval = g_strdup(qstring_get_str(qstring)); | |
1122 | } | |
1123 | ||
560f19f1 | 1124 | qobject_decref(ret); |
7b7b7d18 PB |
1125 | return retval; |
1126 | } | |
1127 | ||
1d9c5a12 PB |
1128 | void object_property_set_link(Object *obj, Object *value, |
1129 | const char *name, Error **errp) | |
1130 | { | |
d3c49316 PC |
1131 | if (value) { |
1132 | gchar *path = object_get_canonical_path(value); | |
1133 | object_property_set_str(obj, path, name, errp); | |
1134 | g_free(path); | |
1135 | } else { | |
1136 | object_property_set_str(obj, "", name, errp); | |
1137 | } | |
1d9c5a12 PB |
1138 | } |
1139 | ||
1140 | Object *object_property_get_link(Object *obj, const char *name, | |
1141 | Error **errp) | |
1142 | { | |
1143 | char *str = object_property_get_str(obj, name, errp); | |
1144 | Object *target = NULL; | |
1145 | ||
1146 | if (str && *str) { | |
1147 | target = object_resolve_path(str, NULL); | |
1148 | if (!target) { | |
75158ebb MA |
1149 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1150 | "Device '%s' not found", str); | |
1d9c5a12 PB |
1151 | } |
1152 | } | |
1153 | ||
1154 | g_free(str); | |
1155 | return target; | |
1156 | } | |
1157 | ||
7b7b7d18 PB |
1158 | void object_property_set_bool(Object *obj, bool value, |
1159 | const char *name, Error **errp) | |
1160 | { | |
fc48ffc3 | 1161 | QBool *qbool = qbool_from_bool(value); |
7b7b7d18 PB |
1162 | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
1163 | ||
1164 | QDECREF(qbool); | |
1165 | } | |
1166 | ||
1167 | bool object_property_get_bool(Object *obj, const char *name, | |
1168 | Error **errp) | |
1169 | { | |
1170 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1171 | QBool *qbool; | |
1172 | bool retval; | |
1173 | ||
1174 | if (!ret) { | |
1175 | return false; | |
1176 | } | |
1177 | qbool = qobject_to_qbool(ret); | |
1178 | if (!qbool) { | |
c6bd8c70 | 1179 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean"); |
7b7b7d18 PB |
1180 | retval = false; |
1181 | } else { | |
fc48ffc3 | 1182 | retval = qbool_get_bool(qbool); |
7b7b7d18 PB |
1183 | } |
1184 | ||
560f19f1 | 1185 | qobject_decref(ret); |
7b7b7d18 PB |
1186 | return retval; |
1187 | } | |
1188 | ||
1189 | void object_property_set_int(Object *obj, int64_t value, | |
1190 | const char *name, Error **errp) | |
1191 | { | |
01b2ffce MAL |
1192 | QNum *qnum = qnum_from_int(value); |
1193 | object_property_set_qobject(obj, QOBJECT(qnum), name, errp); | |
7b7b7d18 | 1194 | |
01b2ffce | 1195 | QDECREF(qnum); |
7b7b7d18 PB |
1196 | } |
1197 | ||
1198 | int64_t object_property_get_int(Object *obj, const char *name, | |
1199 | Error **errp) | |
1200 | { | |
1201 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
01b2ffce | 1202 | QNum *qnum; |
7b7b7d18 PB |
1203 | int64_t retval; |
1204 | ||
1205 | if (!ret) { | |
1206 | return -1; | |
1207 | } | |
01b2ffce MAL |
1208 | |
1209 | qnum = qobject_to_qnum(ret); | |
1210 | if (!qnum || !qnum_get_try_int(qnum, &retval)) { | |
c6bd8c70 | 1211 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int"); |
7b7b7d18 | 1212 | retval = -1; |
7b7b7d18 PB |
1213 | } |
1214 | ||
560f19f1 | 1215 | qobject_decref(ret); |
7b7b7d18 | 1216 | return retval; |
b2cd7dee PB |
1217 | } |
1218 | ||
a8e3fbed DB |
1219 | typedef struct EnumProperty { |
1220 | const char * const *strings; | |
1221 | int (*get)(Object *, Error **); | |
1222 | void (*set)(Object *, int, Error **); | |
1223 | } EnumProperty; | |
1224 | ||
1f21772d | 1225 | int object_property_get_enum(Object *obj, const char *name, |
a3590dac | 1226 | const char *typename, Error **errp) |
1f21772d | 1227 | { |
4715d42e | 1228 | Error *err = NULL; |
7a0525c7 | 1229 | Visitor *v; |
976620ac | 1230 | char *str; |
1f21772d | 1231 | int ret; |
a3590dac DB |
1232 | ObjectProperty *prop = object_property_find(obj, name, errp); |
1233 | EnumProperty *enumprop; | |
1234 | ||
1235 | if (prop == NULL) { | |
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | if (!g_str_equal(prop->type, typename)) { | |
1240 | error_setg(errp, "Property %s on %s is not '%s' enum type", | |
1241 | name, object_class_get_name( | |
1242 | object_get_class(obj)), typename); | |
1243 | return 0; | |
1244 | } | |
1245 | ||
1246 | enumprop = prop->opaque; | |
1f21772d | 1247 | |
3b098d56 | 1248 | v = string_output_visitor_new(false, &str); |
e7ca5656 | 1249 | object_property_get(obj, v, name, &err); |
4715d42e MA |
1250 | if (err) { |
1251 | error_propagate(errp, err); | |
e7ca5656 | 1252 | visit_free(v); |
4715d42e MA |
1253 | return 0; |
1254 | } | |
3b098d56 | 1255 | visit_complete(v, &str); |
e7ca5656 | 1256 | visit_free(v); |
7a0525c7 EB |
1257 | v = string_input_visitor_new(str); |
1258 | visit_type_enum(v, name, &ret, enumprop->strings, errp); | |
976620ac CF |
1259 | |
1260 | g_free(str); | |
7a0525c7 | 1261 | visit_free(v); |
1f21772d HT |
1262 | |
1263 | return ret; | |
1264 | } | |
1265 | ||
1266 | void object_property_get_uint16List(Object *obj, const char *name, | |
1267 | uint16List **list, Error **errp) | |
1268 | { | |
4715d42e | 1269 | Error *err = NULL; |
7a0525c7 | 1270 | Visitor *v; |
976620ac | 1271 | char *str; |
1f21772d | 1272 | |
3b098d56 EB |
1273 | v = string_output_visitor_new(false, &str); |
1274 | object_property_get(obj, v, name, &err); | |
4715d42e MA |
1275 | if (err) { |
1276 | error_propagate(errp, err); | |
1277 | goto out; | |
1278 | } | |
3b098d56 EB |
1279 | visit_complete(v, &str); |
1280 | visit_free(v); | |
7a0525c7 EB |
1281 | v = string_input_visitor_new(str); |
1282 | visit_type_uint16List(v, NULL, list, errp); | |
976620ac CF |
1283 | |
1284 | g_free(str); | |
4715d42e | 1285 | out: |
3b098d56 | 1286 | visit_free(v); |
1f21772d HT |
1287 | } |
1288 | ||
b2cd7dee PB |
1289 | void object_property_parse(Object *obj, const char *string, |
1290 | const char *name, Error **errp) | |
1291 | { | |
7a0525c7 EB |
1292 | Visitor *v = string_input_visitor_new(string); |
1293 | object_property_set(obj, v, name, errp); | |
1294 | visit_free(v); | |
b2cd7dee PB |
1295 | } |
1296 | ||
0b7593e0 | 1297 | char *object_property_print(Object *obj, const char *name, bool human, |
b2cd7dee PB |
1298 | Error **errp) |
1299 | { | |
3b098d56 | 1300 | Visitor *v; |
3a53009f GA |
1301 | char *string = NULL; |
1302 | Error *local_err = NULL; | |
b2cd7dee | 1303 | |
3b098d56 EB |
1304 | v = string_output_visitor_new(human, &string); |
1305 | object_property_get(obj, v, name, &local_err); | |
3a53009f GA |
1306 | if (local_err) { |
1307 | error_propagate(errp, local_err); | |
1308 | goto out; | |
1309 | } | |
1310 | ||
3b098d56 | 1311 | visit_complete(v, &string); |
3a53009f GA |
1312 | |
1313 | out: | |
3b098d56 | 1314 | visit_free(v); |
b2cd7dee | 1315 | return string; |
7b7b7d18 PB |
1316 | } |
1317 | ||
57c9fafe AL |
1318 | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
1319 | { | |
89bfe000 | 1320 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1321 | if (prop == NULL) { |
57c9fafe AL |
1322 | return NULL; |
1323 | } | |
1324 | ||
1325 | return prop->type; | |
1326 | } | |
1327 | ||
1328 | Object *object_get_root(void) | |
1329 | { | |
8b45d447 | 1330 | static Object *root; |
57c9fafe | 1331 | |
8b45d447 AL |
1332 | if (!root) { |
1333 | root = object_new("container"); | |
57c9fafe AL |
1334 | } |
1335 | ||
8b45d447 | 1336 | return root; |
57c9fafe AL |
1337 | } |
1338 | ||
bc2256c4 DB |
1339 | Object *object_get_objects_root(void) |
1340 | { | |
1341 | return container_get(object_get_root(), "/objects"); | |
1342 | } | |
1343 | ||
d7bce999 EB |
1344 | static void object_get_child_property(Object *obj, Visitor *v, |
1345 | const char *name, void *opaque, | |
1346 | Error **errp) | |
57c9fafe AL |
1347 | { |
1348 | Object *child = opaque; | |
1349 | gchar *path; | |
1350 | ||
1351 | path = object_get_canonical_path(child); | |
51e72bc1 | 1352 | visit_type_str(v, name, &path, errp); |
57c9fafe AL |
1353 | g_free(path); |
1354 | } | |
1355 | ||
64607d08 PB |
1356 | static Object *object_resolve_child_property(Object *parent, void *opaque, const gchar *part) |
1357 | { | |
1358 | return opaque; | |
1359 | } | |
1360 | ||
db85b575 AL |
1361 | static void object_finalize_child_property(Object *obj, const char *name, |
1362 | void *opaque) | |
1363 | { | |
1364 | Object *child = opaque; | |
1365 | ||
bffc687d PB |
1366 | if (child->class->unparent) { |
1367 | (child->class->unparent)(child); | |
1368 | } | |
1369 | child->parent = NULL; | |
db85b575 AL |
1370 | object_unref(child); |
1371 | } | |
1372 | ||
57c9fafe AL |
1373 | void object_property_add_child(Object *obj, const char *name, |
1374 | Object *child, Error **errp) | |
1375 | { | |
b0ed5e9f | 1376 | Error *local_err = NULL; |
57c9fafe | 1377 | gchar *type; |
64607d08 | 1378 | ObjectProperty *op; |
57c9fafe | 1379 | |
8faa2f85 PC |
1380 | if (child->parent != NULL) { |
1381 | error_setg(errp, "child object is already parented"); | |
1382 | return; | |
1383 | } | |
1384 | ||
57c9fafe AL |
1385 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
1386 | ||
64607d08 PB |
1387 | op = object_property_add(obj, name, type, object_get_child_property, NULL, |
1388 | object_finalize_child_property, child, &local_err); | |
b0ed5e9f PB |
1389 | if (local_err) { |
1390 | error_propagate(errp, local_err); | |
1391 | goto out; | |
1392 | } | |
64607d08 PB |
1393 | |
1394 | op->resolve = object_resolve_child_property; | |
57c9fafe | 1395 | object_ref(child); |
57c9fafe AL |
1396 | child->parent = obj; |
1397 | ||
b0ed5e9f | 1398 | out: |
57c9fafe AL |
1399 | g_free(type); |
1400 | } | |
1401 | ||
39f72ef9 SH |
1402 | void object_property_allow_set_link(Object *obj, const char *name, |
1403 | Object *val, Error **errp) | |
1404 | { | |
1405 | /* Allow the link to be set, always */ | |
1406 | } | |
1407 | ||
9561fda8 SH |
1408 | typedef struct { |
1409 | Object **child; | |
39f72ef9 | 1410 | void (*check)(Object *, const char *, Object *, Error **); |
9561fda8 SH |
1411 | ObjectPropertyLinkFlags flags; |
1412 | } LinkProperty; | |
1413 | ||
d7bce999 EB |
1414 | static void object_get_link_property(Object *obj, Visitor *v, |
1415 | const char *name, void *opaque, | |
1416 | Error **errp) | |
57c9fafe | 1417 | { |
9561fda8 SH |
1418 | LinkProperty *lprop = opaque; |
1419 | Object **child = lprop->child; | |
57c9fafe AL |
1420 | gchar *path; |
1421 | ||
1422 | if (*child) { | |
1423 | path = object_get_canonical_path(*child); | |
51e72bc1 | 1424 | visit_type_str(v, name, &path, errp); |
57c9fafe AL |
1425 | g_free(path); |
1426 | } else { | |
1427 | path = (gchar *)""; | |
51e72bc1 | 1428 | visit_type_str(v, name, &path, errp); |
57c9fafe AL |
1429 | } |
1430 | } | |
1431 | ||
f5ec6704 SH |
1432 | /* |
1433 | * object_resolve_link: | |
1434 | * | |
1435 | * Lookup an object and ensure its type matches the link property type. This | |
1436 | * is similar to object_resolve_path() except type verification against the | |
1437 | * link property is performed. | |
1438 | * | |
1439 | * Returns: The matched object or NULL on path lookup failures. | |
1440 | */ | |
1441 | static Object *object_resolve_link(Object *obj, const char *name, | |
1442 | const char *path, Error **errp) | |
1443 | { | |
1444 | const char *type; | |
1445 | gchar *target_type; | |
1446 | bool ambiguous = false; | |
1447 | Object *target; | |
1448 | ||
1449 | /* Go from link<FOO> to FOO. */ | |
1450 | type = object_property_get_type(obj, name, NULL); | |
1451 | target_type = g_strndup(&type[5], strlen(type) - 6); | |
1452 | target = object_resolve_path_type(path, target_type, &ambiguous); | |
1453 | ||
1454 | if (ambiguous) { | |
455b0fde EB |
1455 | error_setg(errp, "Path '%s' does not uniquely identify an object", |
1456 | path); | |
f5ec6704 SH |
1457 | } else if (!target) { |
1458 | target = object_resolve_path(path, &ambiguous); | |
1459 | if (target || ambiguous) { | |
c6bd8c70 | 1460 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
f5ec6704 | 1461 | } else { |
75158ebb MA |
1462 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1463 | "Device '%s' not found", path); | |
f5ec6704 SH |
1464 | } |
1465 | target = NULL; | |
1466 | } | |
1467 | g_free(target_type); | |
1468 | ||
1469 | return target; | |
1470 | } | |
1471 | ||
d7bce999 EB |
1472 | static void object_set_link_property(Object *obj, Visitor *v, |
1473 | const char *name, void *opaque, | |
1474 | Error **errp) | |
57c9fafe | 1475 | { |
c6aed983 | 1476 | Error *local_err = NULL; |
9561fda8 SH |
1477 | LinkProperty *prop = opaque; |
1478 | Object **child = prop->child; | |
c6aed983 SH |
1479 | Object *old_target = *child; |
1480 | Object *new_target = NULL; | |
1481 | char *path = NULL; | |
57c9fafe | 1482 | |
51e72bc1 | 1483 | visit_type_str(v, name, &path, &local_err); |
57c9fafe | 1484 | |
c6aed983 SH |
1485 | if (!local_err && strcmp(path, "") != 0) { |
1486 | new_target = object_resolve_link(obj, name, path, &local_err); | |
57c9fafe AL |
1487 | } |
1488 | ||
1489 | g_free(path); | |
c6aed983 SH |
1490 | if (local_err) { |
1491 | error_propagate(errp, local_err); | |
1492 | return; | |
1493 | } | |
f0cdc966 | 1494 | |
39f72ef9 SH |
1495 | prop->check(obj, name, new_target, &local_err); |
1496 | if (local_err) { | |
1497 | error_propagate(errp, local_err); | |
1498 | return; | |
1499 | } | |
1500 | ||
8ffad850 | 1501 | object_ref(new_target); |
c6aed983 | 1502 | *child = new_target; |
8ffad850 | 1503 | object_unref(old_target); |
57c9fafe AL |
1504 | } |
1505 | ||
64607d08 PB |
1506 | static Object *object_resolve_link_property(Object *parent, void *opaque, const gchar *part) |
1507 | { | |
1508 | LinkProperty *lprop = opaque; | |
1509 | ||
1510 | return *lprop->child; | |
1511 | } | |
1512 | ||
9561fda8 SH |
1513 | static void object_release_link_property(Object *obj, const char *name, |
1514 | void *opaque) | |
1515 | { | |
1516 | LinkProperty *prop = opaque; | |
1517 | ||
1518 | if ((prop->flags & OBJ_PROP_LINK_UNREF_ON_RELEASE) && *prop->child) { | |
1519 | object_unref(*prop->child); | |
1520 | } | |
1521 | g_free(prop); | |
1522 | } | |
1523 | ||
57c9fafe AL |
1524 | void object_property_add_link(Object *obj, const char *name, |
1525 | const char *type, Object **child, | |
39f72ef9 SH |
1526 | void (*check)(Object *, const char *, |
1527 | Object *, Error **), | |
9561fda8 | 1528 | ObjectPropertyLinkFlags flags, |
57c9fafe AL |
1529 | Error **errp) |
1530 | { | |
9561fda8 SH |
1531 | Error *local_err = NULL; |
1532 | LinkProperty *prop = g_malloc(sizeof(*prop)); | |
57c9fafe | 1533 | gchar *full_type; |
64607d08 | 1534 | ObjectProperty *op; |
57c9fafe | 1535 | |
9561fda8 | 1536 | prop->child = child; |
39f72ef9 | 1537 | prop->check = check; |
9561fda8 SH |
1538 | prop->flags = flags; |
1539 | ||
57c9fafe AL |
1540 | full_type = g_strdup_printf("link<%s>", type); |
1541 | ||
64607d08 PB |
1542 | op = object_property_add(obj, name, full_type, |
1543 | object_get_link_property, | |
1544 | check ? object_set_link_property : NULL, | |
1545 | object_release_link_property, | |
1546 | prop, | |
1547 | &local_err); | |
9561fda8 SH |
1548 | if (local_err) { |
1549 | error_propagate(errp, local_err); | |
1550 | g_free(prop); | |
64607d08 | 1551 | goto out; |
9561fda8 | 1552 | } |
57c9fafe | 1553 | |
64607d08 PB |
1554 | op->resolve = object_resolve_link_property; |
1555 | ||
1556 | out: | |
57c9fafe AL |
1557 | g_free(full_type); |
1558 | } | |
1559 | ||
fb9e7e33 PB |
1560 | void object_property_add_const_link(Object *obj, const char *name, |
1561 | Object *target, Error **errp) | |
1562 | { | |
1563 | char *link_type; | |
1564 | ObjectProperty *op; | |
1565 | ||
1566 | link_type = g_strdup_printf("link<%s>", object_get_typename(target)); | |
1567 | op = object_property_add(obj, name, link_type, | |
1568 | object_get_child_property, NULL, | |
1569 | NULL, target, errp); | |
1570 | if (op != NULL) { | |
1571 | op->resolve = object_resolve_child_property; | |
1572 | } | |
1573 | g_free(link_type); | |
1574 | } | |
1575 | ||
11f590b1 SH |
1576 | gchar *object_get_canonical_path_component(Object *obj) |
1577 | { | |
1578 | ObjectProperty *prop = NULL; | |
b604a854 | 1579 | GHashTableIter iter; |
11f590b1 SH |
1580 | |
1581 | g_assert(obj); | |
1582 | g_assert(obj->parent != NULL); | |
1583 | ||
b604a854 PF |
1584 | g_hash_table_iter_init(&iter, obj->parent->properties); |
1585 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
11f590b1 SH |
1586 | if (!object_property_is_child(prop)) { |
1587 | continue; | |
1588 | } | |
1589 | ||
1590 | if (prop->opaque == obj) { | |
1591 | return g_strdup(prop->name); | |
1592 | } | |
1593 | } | |
1594 | ||
1595 | /* obj had a parent but was not a child, should never happen */ | |
1596 | g_assert_not_reached(); | |
1597 | return NULL; | |
1598 | } | |
1599 | ||
57c9fafe AL |
1600 | gchar *object_get_canonical_path(Object *obj) |
1601 | { | |
1602 | Object *root = object_get_root(); | |
11f590b1 | 1603 | char *newpath, *path = NULL; |
57c9fafe AL |
1604 | |
1605 | while (obj != root) { | |
11f590b1 | 1606 | char *component = object_get_canonical_path_component(obj); |
57c9fafe | 1607 | |
11f590b1 SH |
1608 | if (path) { |
1609 | newpath = g_strdup_printf("%s/%s", component, path); | |
1610 | g_free(component); | |
1611 | g_free(path); | |
1612 | path = newpath; | |
1613 | } else { | |
1614 | path = component; | |
57c9fafe AL |
1615 | } |
1616 | ||
57c9fafe AL |
1617 | obj = obj->parent; |
1618 | } | |
1619 | ||
11f590b1 | 1620 | newpath = g_strdup_printf("/%s", path ? path : ""); |
57c9fafe AL |
1621 | g_free(path); |
1622 | ||
1623 | return newpath; | |
1624 | } | |
1625 | ||
3e84b483 | 1626 | Object *object_resolve_path_component(Object *parent, const gchar *part) |
a612b2a6 | 1627 | { |
89bfe000 | 1628 | ObjectProperty *prop = object_property_find(parent, part, NULL); |
a612b2a6 PB |
1629 | if (prop == NULL) { |
1630 | return NULL; | |
1631 | } | |
1632 | ||
64607d08 PB |
1633 | if (prop->resolve) { |
1634 | return prop->resolve(parent, prop->opaque, part); | |
a612b2a6 PB |
1635 | } else { |
1636 | return NULL; | |
1637 | } | |
1638 | } | |
1639 | ||
57c9fafe AL |
1640 | static Object *object_resolve_abs_path(Object *parent, |
1641 | gchar **parts, | |
02fe2db6 | 1642 | const char *typename, |
57c9fafe AL |
1643 | int index) |
1644 | { | |
57c9fafe AL |
1645 | Object *child; |
1646 | ||
1647 | if (parts[index] == NULL) { | |
02fe2db6 | 1648 | return object_dynamic_cast(parent, typename); |
57c9fafe AL |
1649 | } |
1650 | ||
1651 | if (strcmp(parts[index], "") == 0) { | |
02fe2db6 | 1652 | return object_resolve_abs_path(parent, parts, typename, index + 1); |
57c9fafe AL |
1653 | } |
1654 | ||
a612b2a6 | 1655 | child = object_resolve_path_component(parent, parts[index]); |
57c9fafe AL |
1656 | if (!child) { |
1657 | return NULL; | |
1658 | } | |
1659 | ||
02fe2db6 | 1660 | return object_resolve_abs_path(child, parts, typename, index + 1); |
57c9fafe AL |
1661 | } |
1662 | ||
1663 | static Object *object_resolve_partial_path(Object *parent, | |
1664 | gchar **parts, | |
02fe2db6 | 1665 | const char *typename, |
57c9fafe AL |
1666 | bool *ambiguous) |
1667 | { | |
1668 | Object *obj; | |
b604a854 | 1669 | GHashTableIter iter; |
57c9fafe AL |
1670 | ObjectProperty *prop; |
1671 | ||
02fe2db6 | 1672 | obj = object_resolve_abs_path(parent, parts, typename, 0); |
57c9fafe | 1673 | |
b604a854 PF |
1674 | g_hash_table_iter_init(&iter, parent->properties); |
1675 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
57c9fafe AL |
1676 | Object *found; |
1677 | ||
5d9d3f47 | 1678 | if (!object_property_is_child(prop)) { |
57c9fafe AL |
1679 | continue; |
1680 | } | |
1681 | ||
02fe2db6 PB |
1682 | found = object_resolve_partial_path(prop->opaque, parts, |
1683 | typename, ambiguous); | |
57c9fafe AL |
1684 | if (found) { |
1685 | if (obj) { | |
1686 | if (ambiguous) { | |
1687 | *ambiguous = true; | |
1688 | } | |
1689 | return NULL; | |
1690 | } | |
1691 | obj = found; | |
1692 | } | |
1693 | ||
1694 | if (ambiguous && *ambiguous) { | |
1695 | return NULL; | |
1696 | } | |
1697 | } | |
1698 | ||
1699 | return obj; | |
1700 | } | |
1701 | ||
02fe2db6 PB |
1702 | Object *object_resolve_path_type(const char *path, const char *typename, |
1703 | bool *ambiguous) | |
57c9fafe | 1704 | { |
57c9fafe AL |
1705 | Object *obj; |
1706 | gchar **parts; | |
1707 | ||
1708 | parts = g_strsplit(path, "/", 0); | |
2e1103f6 | 1709 | assert(parts); |
57c9fafe | 1710 | |
2e1103f6 | 1711 | if (parts[0] == NULL || strcmp(parts[0], "") != 0) { |
57c9fafe AL |
1712 | if (ambiguous) { |
1713 | *ambiguous = false; | |
1714 | } | |
02fe2db6 PB |
1715 | obj = object_resolve_partial_path(object_get_root(), parts, |
1716 | typename, ambiguous); | |
57c9fafe | 1717 | } else { |
02fe2db6 | 1718 | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1); |
57c9fafe AL |
1719 | } |
1720 | ||
1721 | g_strfreev(parts); | |
1722 | ||
1723 | return obj; | |
1724 | } | |
1725 | ||
02fe2db6 PB |
1726 | Object *object_resolve_path(const char *path, bool *ambiguous) |
1727 | { | |
1728 | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous); | |
1729 | } | |
1730 | ||
57c9fafe AL |
1731 | typedef struct StringProperty |
1732 | { | |
1733 | char *(*get)(Object *, Error **); | |
1734 | void (*set)(Object *, const char *, Error **); | |
1735 | } StringProperty; | |
1736 | ||
d7bce999 EB |
1737 | static void property_get_str(Object *obj, Visitor *v, const char *name, |
1738 | void *opaque, Error **errp) | |
57c9fafe AL |
1739 | { |
1740 | StringProperty *prop = opaque; | |
1741 | char *value; | |
e1c8237d | 1742 | Error *err = NULL; |
57c9fafe | 1743 | |
e1c8237d MA |
1744 | value = prop->get(obj, &err); |
1745 | if (err) { | |
1746 | error_propagate(errp, err); | |
1747 | return; | |
57c9fafe | 1748 | } |
e1c8237d | 1749 | |
51e72bc1 | 1750 | visit_type_str(v, name, &value, errp); |
e1c8237d | 1751 | g_free(value); |
57c9fafe AL |
1752 | } |
1753 | ||
d7bce999 EB |
1754 | static void property_set_str(Object *obj, Visitor *v, const char *name, |
1755 | void *opaque, Error **errp) | |
57c9fafe AL |
1756 | { |
1757 | StringProperty *prop = opaque; | |
1758 | char *value; | |
1759 | Error *local_err = NULL; | |
1760 | ||
51e72bc1 | 1761 | visit_type_str(v, name, &value, &local_err); |
57c9fafe AL |
1762 | if (local_err) { |
1763 | error_propagate(errp, local_err); | |
1764 | return; | |
1765 | } | |
1766 | ||
1767 | prop->set(obj, value, errp); | |
1768 | g_free(value); | |
1769 | } | |
1770 | ||
7b7b7d18 PB |
1771 | static void property_release_str(Object *obj, const char *name, |
1772 | void *opaque) | |
57c9fafe AL |
1773 | { |
1774 | StringProperty *prop = opaque; | |
1775 | g_free(prop); | |
1776 | } | |
1777 | ||
1778 | void object_property_add_str(Object *obj, const char *name, | |
1779 | char *(*get)(Object *, Error **), | |
1780 | void (*set)(Object *, const char *, Error **), | |
1781 | Error **errp) | |
1782 | { | |
a01aedc8 | 1783 | Error *local_err = NULL; |
57c9fafe AL |
1784 | StringProperty *prop = g_malloc0(sizeof(*prop)); |
1785 | ||
1786 | prop->get = get; | |
1787 | prop->set = set; | |
1788 | ||
1789 | object_property_add(obj, name, "string", | |
7b7b7d18 PB |
1790 | get ? property_get_str : NULL, |
1791 | set ? property_set_str : NULL, | |
1792 | property_release_str, | |
a01aedc8 SH |
1793 | prop, &local_err); |
1794 | if (local_err) { | |
1795 | error_propagate(errp, local_err); | |
1796 | g_free(prop); | |
1797 | } | |
57c9fafe | 1798 | } |
745549c8 | 1799 | |
16bf7f52 DB |
1800 | void object_class_property_add_str(ObjectClass *klass, const char *name, |
1801 | char *(*get)(Object *, Error **), | |
1802 | void (*set)(Object *, const char *, | |
1803 | Error **), | |
1804 | Error **errp) | |
1805 | { | |
1806 | Error *local_err = NULL; | |
1807 | StringProperty *prop = g_malloc0(sizeof(*prop)); | |
1808 | ||
1809 | prop->get = get; | |
1810 | prop->set = set; | |
1811 | ||
1812 | object_class_property_add(klass, name, "string", | |
1813 | get ? property_get_str : NULL, | |
1814 | set ? property_set_str : NULL, | |
1815 | property_release_str, | |
1816 | prop, &local_err); | |
1817 | if (local_err) { | |
1818 | error_propagate(errp, local_err); | |
1819 | g_free(prop); | |
1820 | } | |
1821 | } | |
1822 | ||
0e558843 AL |
1823 | typedef struct BoolProperty |
1824 | { | |
1825 | bool (*get)(Object *, Error **); | |
1826 | void (*set)(Object *, bool, Error **); | |
1827 | } BoolProperty; | |
1828 | ||
d7bce999 EB |
1829 | static void property_get_bool(Object *obj, Visitor *v, const char *name, |
1830 | void *opaque, Error **errp) | |
0e558843 AL |
1831 | { |
1832 | BoolProperty *prop = opaque; | |
1833 | bool value; | |
4715d42e MA |
1834 | Error *err = NULL; |
1835 | ||
1836 | value = prop->get(obj, &err); | |
1837 | if (err) { | |
1838 | error_propagate(errp, err); | |
1839 | return; | |
1840 | } | |
0e558843 | 1841 | |
51e72bc1 | 1842 | visit_type_bool(v, name, &value, errp); |
0e558843 AL |
1843 | } |
1844 | ||
d7bce999 EB |
1845 | static void property_set_bool(Object *obj, Visitor *v, const char *name, |
1846 | void *opaque, Error **errp) | |
0e558843 AL |
1847 | { |
1848 | BoolProperty *prop = opaque; | |
1849 | bool value; | |
1850 | Error *local_err = NULL; | |
1851 | ||
51e72bc1 | 1852 | visit_type_bool(v, name, &value, &local_err); |
0e558843 AL |
1853 | if (local_err) { |
1854 | error_propagate(errp, local_err); | |
1855 | return; | |
1856 | } | |
1857 | ||
1858 | prop->set(obj, value, errp); | |
1859 | } | |
1860 | ||
1861 | static void property_release_bool(Object *obj, const char *name, | |
1862 | void *opaque) | |
1863 | { | |
1864 | BoolProperty *prop = opaque; | |
1865 | g_free(prop); | |
1866 | } | |
1867 | ||
1868 | void object_property_add_bool(Object *obj, const char *name, | |
1869 | bool (*get)(Object *, Error **), | |
1870 | void (*set)(Object *, bool, Error **), | |
1871 | Error **errp) | |
1872 | { | |
a01aedc8 | 1873 | Error *local_err = NULL; |
0e558843 AL |
1874 | BoolProperty *prop = g_malloc0(sizeof(*prop)); |
1875 | ||
1876 | prop->get = get; | |
1877 | prop->set = set; | |
1878 | ||
1879 | object_property_add(obj, name, "bool", | |
1880 | get ? property_get_bool : NULL, | |
1881 | set ? property_set_bool : NULL, | |
1882 | property_release_bool, | |
a01aedc8 SH |
1883 | prop, &local_err); |
1884 | if (local_err) { | |
1885 | error_propagate(errp, local_err); | |
1886 | g_free(prop); | |
1887 | } | |
0e558843 AL |
1888 | } |
1889 | ||
16bf7f52 DB |
1890 | void object_class_property_add_bool(ObjectClass *klass, const char *name, |
1891 | bool (*get)(Object *, Error **), | |
1892 | void (*set)(Object *, bool, Error **), | |
1893 | Error **errp) | |
1894 | { | |
1895 | Error *local_err = NULL; | |
1896 | BoolProperty *prop = g_malloc0(sizeof(*prop)); | |
1897 | ||
1898 | prop->get = get; | |
1899 | prop->set = set; | |
1900 | ||
1901 | object_class_property_add(klass, name, "bool", | |
1902 | get ? property_get_bool : NULL, | |
1903 | set ? property_set_bool : NULL, | |
1904 | property_release_bool, | |
1905 | prop, &local_err); | |
1906 | if (local_err) { | |
1907 | error_propagate(errp, local_err); | |
1908 | g_free(prop); | |
1909 | } | |
1910 | } | |
1911 | ||
d7bce999 EB |
1912 | static void property_get_enum(Object *obj, Visitor *v, const char *name, |
1913 | void *opaque, Error **errp) | |
a8e3fbed DB |
1914 | { |
1915 | EnumProperty *prop = opaque; | |
1916 | int value; | |
4715d42e MA |
1917 | Error *err = NULL; |
1918 | ||
1919 | value = prop->get(obj, &err); | |
1920 | if (err) { | |
1921 | error_propagate(errp, err); | |
1922 | return; | |
1923 | } | |
a8e3fbed | 1924 | |
337283df | 1925 | visit_type_enum(v, name, &value, prop->strings, errp); |
a8e3fbed DB |
1926 | } |
1927 | ||
d7bce999 EB |
1928 | static void property_set_enum(Object *obj, Visitor *v, const char *name, |
1929 | void *opaque, Error **errp) | |
a8e3fbed DB |
1930 | { |
1931 | EnumProperty *prop = opaque; | |
1932 | int value; | |
4715d42e | 1933 | Error *err = NULL; |
a8e3fbed | 1934 | |
337283df | 1935 | visit_type_enum(v, name, &value, prop->strings, &err); |
4715d42e MA |
1936 | if (err) { |
1937 | error_propagate(errp, err); | |
1938 | return; | |
1939 | } | |
a8e3fbed DB |
1940 | prop->set(obj, value, errp); |
1941 | } | |
1942 | ||
1943 | static void property_release_enum(Object *obj, const char *name, | |
1944 | void *opaque) | |
1945 | { | |
1946 | EnumProperty *prop = opaque; | |
1947 | g_free(prop); | |
1948 | } | |
1949 | ||
1950 | void object_property_add_enum(Object *obj, const char *name, | |
1951 | const char *typename, | |
1952 | const char * const *strings, | |
1953 | int (*get)(Object *, Error **), | |
1954 | void (*set)(Object *, int, Error **), | |
1955 | Error **errp) | |
1956 | { | |
1957 | Error *local_err = NULL; | |
1958 | EnumProperty *prop = g_malloc(sizeof(*prop)); | |
1959 | ||
1960 | prop->strings = strings; | |
1961 | prop->get = get; | |
1962 | prop->set = set; | |
1963 | ||
1964 | object_property_add(obj, name, typename, | |
1965 | get ? property_get_enum : NULL, | |
1966 | set ? property_set_enum : NULL, | |
1967 | property_release_enum, | |
1968 | prop, &local_err); | |
1969 | if (local_err) { | |
1970 | error_propagate(errp, local_err); | |
1971 | g_free(prop); | |
1972 | } | |
1973 | } | |
1974 | ||
16bf7f52 DB |
1975 | void object_class_property_add_enum(ObjectClass *klass, const char *name, |
1976 | const char *typename, | |
1977 | const char * const *strings, | |
1978 | int (*get)(Object *, Error **), | |
1979 | void (*set)(Object *, int, Error **), | |
1980 | Error **errp) | |
1981 | { | |
1982 | Error *local_err = NULL; | |
1983 | EnumProperty *prop = g_malloc(sizeof(*prop)); | |
1984 | ||
1985 | prop->strings = strings; | |
1986 | prop->get = get; | |
1987 | prop->set = set; | |
1988 | ||
1989 | object_class_property_add(klass, name, typename, | |
1990 | get ? property_get_enum : NULL, | |
1991 | set ? property_set_enum : NULL, | |
1992 | property_release_enum, | |
1993 | prop, &local_err); | |
1994 | if (local_err) { | |
1995 | error_propagate(errp, local_err); | |
1996 | g_free(prop); | |
1997 | } | |
1998 | } | |
1999 | ||
8e099d14 DG |
2000 | typedef struct TMProperty { |
2001 | void (*get)(Object *, struct tm *, Error **); | |
2002 | } TMProperty; | |
2003 | ||
d7bce999 EB |
2004 | static void property_get_tm(Object *obj, Visitor *v, const char *name, |
2005 | void *opaque, Error **errp) | |
8e099d14 DG |
2006 | { |
2007 | TMProperty *prop = opaque; | |
2008 | Error *err = NULL; | |
2009 | struct tm value; | |
2010 | ||
2011 | prop->get(obj, &value, &err); | |
2012 | if (err) { | |
2013 | goto out; | |
2014 | } | |
2015 | ||
337283df | 2016 | visit_start_struct(v, name, NULL, 0, &err); |
8e099d14 DG |
2017 | if (err) { |
2018 | goto out; | |
2019 | } | |
51e72bc1 | 2020 | visit_type_int32(v, "tm_year", &value.tm_year, &err); |
8e099d14 DG |
2021 | if (err) { |
2022 | goto out_end; | |
2023 | } | |
51e72bc1 | 2024 | visit_type_int32(v, "tm_mon", &value.tm_mon, &err); |
8e099d14 DG |
2025 | if (err) { |
2026 | goto out_end; | |
2027 | } | |
51e72bc1 | 2028 | visit_type_int32(v, "tm_mday", &value.tm_mday, &err); |
8e099d14 DG |
2029 | if (err) { |
2030 | goto out_end; | |
2031 | } | |
51e72bc1 | 2032 | visit_type_int32(v, "tm_hour", &value.tm_hour, &err); |
8e099d14 DG |
2033 | if (err) { |
2034 | goto out_end; | |
2035 | } | |
51e72bc1 | 2036 | visit_type_int32(v, "tm_min", &value.tm_min, &err); |
8e099d14 DG |
2037 | if (err) { |
2038 | goto out_end; | |
2039 | } | |
51e72bc1 | 2040 | visit_type_int32(v, "tm_sec", &value.tm_sec, &err); |
8e099d14 DG |
2041 | if (err) { |
2042 | goto out_end; | |
2043 | } | |
15c2f669 | 2044 | visit_check_struct(v, &err); |
8e099d14 | 2045 | out_end: |
1158bb2a | 2046 | visit_end_struct(v, NULL); |
8e099d14 DG |
2047 | out: |
2048 | error_propagate(errp, err); | |
2049 | ||
2050 | } | |
2051 | ||
2052 | static void property_release_tm(Object *obj, const char *name, | |
2053 | void *opaque) | |
2054 | { | |
2055 | TMProperty *prop = opaque; | |
2056 | g_free(prop); | |
2057 | } | |
2058 | ||
2059 | void object_property_add_tm(Object *obj, const char *name, | |
2060 | void (*get)(Object *, struct tm *, Error **), | |
2061 | Error **errp) | |
2062 | { | |
2063 | Error *local_err = NULL; | |
2064 | TMProperty *prop = g_malloc0(sizeof(*prop)); | |
2065 | ||
2066 | prop->get = get; | |
2067 | ||
2068 | object_property_add(obj, name, "struct tm", | |
2069 | get ? property_get_tm : NULL, NULL, | |
2070 | property_release_tm, | |
2071 | prop, &local_err); | |
2072 | if (local_err) { | |
2073 | error_propagate(errp, local_err); | |
2074 | g_free(prop); | |
2075 | } | |
2076 | } | |
2077 | ||
16bf7f52 DB |
2078 | void object_class_property_add_tm(ObjectClass *klass, const char *name, |
2079 | void (*get)(Object *, struct tm *, Error **), | |
2080 | Error **errp) | |
2081 | { | |
2082 | Error *local_err = NULL; | |
2083 | TMProperty *prop = g_malloc0(sizeof(*prop)); | |
2084 | ||
2085 | prop->get = get; | |
2086 | ||
2087 | object_class_property_add(klass, name, "struct tm", | |
2088 | get ? property_get_tm : NULL, NULL, | |
2089 | property_release_tm, | |
2090 | prop, &local_err); | |
2091 | if (local_err) { | |
2092 | error_propagate(errp, local_err); | |
2093 | g_free(prop); | |
2094 | } | |
2095 | } | |
2096 | ||
2f262e06 PB |
2097 | static char *qdev_get_type(Object *obj, Error **errp) |
2098 | { | |
2099 | return g_strdup(object_get_typename(obj)); | |
2100 | } | |
2101 | ||
d7bce999 EB |
2102 | static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *name, |
2103 | void *opaque, Error **errp) | |
e732ea63 MT |
2104 | { |
2105 | uint8_t value = *(uint8_t *)opaque; | |
51e72bc1 | 2106 | visit_type_uint8(v, name, &value, errp); |
e732ea63 MT |
2107 | } |
2108 | ||
d7bce999 EB |
2109 | static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name, |
2110 | void *opaque, Error **errp) | |
e732ea63 MT |
2111 | { |
2112 | uint16_t value = *(uint16_t *)opaque; | |
51e72bc1 | 2113 | visit_type_uint16(v, name, &value, errp); |
e732ea63 MT |
2114 | } |
2115 | ||
d7bce999 EB |
2116 | static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name, |
2117 | void *opaque, Error **errp) | |
e732ea63 MT |
2118 | { |
2119 | uint32_t value = *(uint32_t *)opaque; | |
51e72bc1 | 2120 | visit_type_uint32(v, name, &value, errp); |
e732ea63 MT |
2121 | } |
2122 | ||
d7bce999 EB |
2123 | static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name, |
2124 | void *opaque, Error **errp) | |
e732ea63 MT |
2125 | { |
2126 | uint64_t value = *(uint64_t *)opaque; | |
51e72bc1 | 2127 | visit_type_uint64(v, name, &value, errp); |
e732ea63 MT |
2128 | } |
2129 | ||
2130 | void object_property_add_uint8_ptr(Object *obj, const char *name, | |
2131 | const uint8_t *v, Error **errp) | |
2132 | { | |
2133 | object_property_add(obj, name, "uint8", property_get_uint8_ptr, | |
2134 | NULL, NULL, (void *)v, errp); | |
2135 | } | |
2136 | ||
16bf7f52 DB |
2137 | void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name, |
2138 | const uint8_t *v, Error **errp) | |
2139 | { | |
2140 | object_class_property_add(klass, name, "uint8", property_get_uint8_ptr, | |
2141 | NULL, NULL, (void *)v, errp); | |
2142 | } | |
2143 | ||
e732ea63 MT |
2144 | void object_property_add_uint16_ptr(Object *obj, const char *name, |
2145 | const uint16_t *v, Error **errp) | |
2146 | { | |
2147 | object_property_add(obj, name, "uint16", property_get_uint16_ptr, | |
2148 | NULL, NULL, (void *)v, errp); | |
2149 | } | |
2150 | ||
16bf7f52 DB |
2151 | void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name, |
2152 | const uint16_t *v, Error **errp) | |
2153 | { | |
2154 | object_class_property_add(klass, name, "uint16", property_get_uint16_ptr, | |
2155 | NULL, NULL, (void *)v, errp); | |
2156 | } | |
2157 | ||
e732ea63 MT |
2158 | void object_property_add_uint32_ptr(Object *obj, const char *name, |
2159 | const uint32_t *v, Error **errp) | |
2160 | { | |
2161 | object_property_add(obj, name, "uint32", property_get_uint32_ptr, | |
2162 | NULL, NULL, (void *)v, errp); | |
2163 | } | |
2164 | ||
16bf7f52 DB |
2165 | void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name, |
2166 | const uint32_t *v, Error **errp) | |
2167 | { | |
2168 | object_class_property_add(klass, name, "uint32", property_get_uint32_ptr, | |
2169 | NULL, NULL, (void *)v, errp); | |
2170 | } | |
2171 | ||
e732ea63 MT |
2172 | void object_property_add_uint64_ptr(Object *obj, const char *name, |
2173 | const uint64_t *v, Error **errp) | |
2174 | { | |
2175 | object_property_add(obj, name, "uint64", property_get_uint64_ptr, | |
2176 | NULL, NULL, (void *)v, errp); | |
2177 | } | |
2178 | ||
16bf7f52 DB |
2179 | void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name, |
2180 | const uint64_t *v, Error **errp) | |
2181 | { | |
2182 | object_class_property_add(klass, name, "uint64", property_get_uint64_ptr, | |
2183 | NULL, NULL, (void *)v, errp); | |
2184 | } | |
2185 | ||
ef7c7ff6 SH |
2186 | typedef struct { |
2187 | Object *target_obj; | |
1590d266 | 2188 | char *target_name; |
ef7c7ff6 SH |
2189 | } AliasProperty; |
2190 | ||
d7bce999 EB |
2191 | static void property_get_alias(Object *obj, Visitor *v, const char *name, |
2192 | void *opaque, Error **errp) | |
ef7c7ff6 SH |
2193 | { |
2194 | AliasProperty *prop = opaque; | |
2195 | ||
2196 | object_property_get(prop->target_obj, v, prop->target_name, errp); | |
2197 | } | |
2198 | ||
d7bce999 EB |
2199 | static void property_set_alias(Object *obj, Visitor *v, const char *name, |
2200 | void *opaque, Error **errp) | |
ef7c7ff6 SH |
2201 | { |
2202 | AliasProperty *prop = opaque; | |
2203 | ||
2204 | object_property_set(prop->target_obj, v, prop->target_name, errp); | |
2205 | } | |
2206 | ||
64607d08 PB |
2207 | static Object *property_resolve_alias(Object *obj, void *opaque, |
2208 | const gchar *part) | |
2209 | { | |
2210 | AliasProperty *prop = opaque; | |
2211 | ||
2212 | return object_resolve_path_component(prop->target_obj, prop->target_name); | |
2213 | } | |
2214 | ||
ef7c7ff6 SH |
2215 | static void property_release_alias(Object *obj, const char *name, void *opaque) |
2216 | { | |
2217 | AliasProperty *prop = opaque; | |
2218 | ||
1590d266 | 2219 | g_free(prop->target_name); |
ef7c7ff6 SH |
2220 | g_free(prop); |
2221 | } | |
2222 | ||
2223 | void object_property_add_alias(Object *obj, const char *name, | |
2224 | Object *target_obj, const char *target_name, | |
2225 | Error **errp) | |
2226 | { | |
2227 | AliasProperty *prop; | |
64607d08 | 2228 | ObjectProperty *op; |
ef7c7ff6 | 2229 | ObjectProperty *target_prop; |
d190698e | 2230 | gchar *prop_type; |
8ae9a9ef | 2231 | Error *local_err = NULL; |
ef7c7ff6 SH |
2232 | |
2233 | target_prop = object_property_find(target_obj, target_name, errp); | |
2234 | if (!target_prop) { | |
2235 | return; | |
2236 | } | |
2237 | ||
d190698e PB |
2238 | if (object_property_is_child(target_prop)) { |
2239 | prop_type = g_strdup_printf("link%s", | |
2240 | target_prop->type + strlen("child")); | |
2241 | } else { | |
2242 | prop_type = g_strdup(target_prop->type); | |
2243 | } | |
2244 | ||
ef7c7ff6 SH |
2245 | prop = g_malloc(sizeof(*prop)); |
2246 | prop->target_obj = target_obj; | |
1590d266 | 2247 | prop->target_name = g_strdup(target_name); |
ef7c7ff6 | 2248 | |
d190698e | 2249 | op = object_property_add(obj, name, prop_type, |
64607d08 PB |
2250 | property_get_alias, |
2251 | property_set_alias, | |
2252 | property_release_alias, | |
8ae9a9ef GA |
2253 | prop, &local_err); |
2254 | if (local_err) { | |
2255 | error_propagate(errp, local_err); | |
2256 | g_free(prop); | |
2257 | goto out; | |
2258 | } | |
64607d08 | 2259 | op->resolve = property_resolve_alias; |
d190698e | 2260 | |
a18bb417 | 2261 | object_property_set_description(obj, op->name, |
80742642 GA |
2262 | target_prop->description, |
2263 | &error_abort); | |
2264 | ||
8ae9a9ef | 2265 | out: |
d190698e | 2266 | g_free(prop_type); |
ef7c7ff6 SH |
2267 | } |
2268 | ||
80742642 GA |
2269 | void object_property_set_description(Object *obj, const char *name, |
2270 | const char *description, Error **errp) | |
2271 | { | |
2272 | ObjectProperty *op; | |
2273 | ||
2274 | op = object_property_find(obj, name, errp); | |
2275 | if (!op) { | |
2276 | return; | |
2277 | } | |
2278 | ||
2279 | g_free(op->description); | |
2280 | op->description = g_strdup(description); | |
2281 | } | |
2282 | ||
16bf7f52 DB |
2283 | void object_class_property_set_description(ObjectClass *klass, |
2284 | const char *name, | |
2285 | const char *description, | |
2286 | Error **errp) | |
2287 | { | |
2288 | ObjectProperty *op; | |
2289 | ||
2290 | op = g_hash_table_lookup(klass->properties, name); | |
2291 | if (!op) { | |
2292 | error_setg(errp, "Property '.%s' not found", name); | |
2293 | return; | |
2294 | } | |
2295 | ||
2296 | g_free(op->description); | |
2297 | op->description = g_strdup(description); | |
2298 | } | |
2299 | ||
2f262e06 PB |
2300 | static void object_instance_init(Object *obj) |
2301 | { | |
2302 | object_property_add_str(obj, "type", qdev_get_type, NULL, NULL); | |
2303 | } | |
2304 | ||
745549c8 PB |
2305 | static void register_types(void) |
2306 | { | |
2307 | static TypeInfo interface_info = { | |
2308 | .name = TYPE_INTERFACE, | |
33e95c63 | 2309 | .class_size = sizeof(InterfaceClass), |
745549c8 PB |
2310 | .abstract = true, |
2311 | }; | |
2312 | ||
2313 | static TypeInfo object_info = { | |
2314 | .name = TYPE_OBJECT, | |
2315 | .instance_size = sizeof(Object), | |
2f262e06 | 2316 | .instance_init = object_instance_init, |
745549c8 PB |
2317 | .abstract = true, |
2318 | }; | |
2319 | ||
049cb3cf PB |
2320 | type_interface = type_register_internal(&interface_info); |
2321 | type_register_internal(&object_info); | |
745549c8 PB |
2322 | } |
2323 | ||
2324 | type_init(register_types) |