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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" | |
30 | #include "qapi/qmp/qint.h" | |
31 | #include "qapi/qmp/qstring.h" | |
7b7b7d18 | 32 | |
2f28d2ff AL |
33 | #define MAX_INTERFACES 32 |
34 | ||
35 | typedef struct InterfaceImpl InterfaceImpl; | |
36 | typedef struct TypeImpl TypeImpl; | |
37 | ||
38 | struct InterfaceImpl | |
39 | { | |
33e95c63 | 40 | const char *typename; |
2f28d2ff AL |
41 | }; |
42 | ||
43 | struct TypeImpl | |
44 | { | |
45 | const char *name; | |
46 | ||
47 | size_t class_size; | |
48 | ||
49 | size_t instance_size; | |
50 | ||
51 | void (*class_init)(ObjectClass *klass, void *data); | |
3b50e311 | 52 | void (*class_base_init)(ObjectClass *klass, void *data); |
2f28d2ff AL |
53 | void (*class_finalize)(ObjectClass *klass, void *data); |
54 | ||
55 | void *class_data; | |
56 | ||
57 | void (*instance_init)(Object *obj); | |
8231c2dd | 58 | void (*instance_post_init)(Object *obj); |
2f28d2ff AL |
59 | void (*instance_finalize)(Object *obj); |
60 | ||
61 | bool abstract; | |
62 | ||
63 | const char *parent; | |
64 | TypeImpl *parent_type; | |
65 | ||
66 | ObjectClass *class; | |
67 | ||
68 | int num_interfaces; | |
69 | InterfaceImpl interfaces[MAX_INTERFACES]; | |
70 | }; | |
71 | ||
9970bd88 PB |
72 | static Type type_interface; |
73 | ||
2f28d2ff AL |
74 | static GHashTable *type_table_get(void) |
75 | { | |
76 | static GHashTable *type_table; | |
77 | ||
78 | if (type_table == NULL) { | |
79 | type_table = g_hash_table_new(g_str_hash, g_str_equal); | |
80 | } | |
81 | ||
82 | return type_table; | |
83 | } | |
84 | ||
f54c19ca HP |
85 | static bool enumerating_types; |
86 | ||
2f28d2ff AL |
87 | static void type_table_add(TypeImpl *ti) |
88 | { | |
f54c19ca | 89 | assert(!enumerating_types); |
2f28d2ff AL |
90 | g_hash_table_insert(type_table_get(), (void *)ti->name, ti); |
91 | } | |
92 | ||
93 | static TypeImpl *type_table_lookup(const char *name) | |
94 | { | |
95 | return g_hash_table_lookup(type_table_get(), name); | |
96 | } | |
97 | ||
b061dc41 | 98 | static TypeImpl *type_new(const TypeInfo *info) |
2f28d2ff AL |
99 | { |
100 | TypeImpl *ti = g_malloc0(sizeof(*ti)); | |
33e95c63 | 101 | int i; |
2f28d2ff AL |
102 | |
103 | g_assert(info->name != NULL); | |
104 | ||
73093354 AL |
105 | if (type_table_lookup(info->name) != NULL) { |
106 | fprintf(stderr, "Registering `%s' which already exists\n", info->name); | |
107 | abort(); | |
108 | } | |
109 | ||
2f28d2ff AL |
110 | ti->name = g_strdup(info->name); |
111 | ti->parent = g_strdup(info->parent); | |
112 | ||
113 | ti->class_size = info->class_size; | |
114 | ti->instance_size = info->instance_size; | |
115 | ||
116 | ti->class_init = info->class_init; | |
3b50e311 | 117 | ti->class_base_init = info->class_base_init; |
2f28d2ff AL |
118 | ti->class_finalize = info->class_finalize; |
119 | ti->class_data = info->class_data; | |
120 | ||
121 | ti->instance_init = info->instance_init; | |
8231c2dd | 122 | ti->instance_post_init = info->instance_post_init; |
2f28d2ff AL |
123 | ti->instance_finalize = info->instance_finalize; |
124 | ||
125 | ti->abstract = info->abstract; | |
126 | ||
33e95c63 AL |
127 | for (i = 0; info->interfaces && info->interfaces[i].type; i++) { |
128 | ti->interfaces[i].typename = g_strdup(info->interfaces[i].type); | |
2f28d2ff | 129 | } |
33e95c63 | 130 | ti->num_interfaces = i; |
2f28d2ff | 131 | |
b061dc41 PB |
132 | return ti; |
133 | } | |
2f28d2ff | 134 | |
b061dc41 PB |
135 | static TypeImpl *type_register_internal(const TypeInfo *info) |
136 | { | |
137 | TypeImpl *ti; | |
138 | ti = type_new(info); | |
139 | ||
140 | type_table_add(ti); | |
2f28d2ff AL |
141 | return ti; |
142 | } | |
143 | ||
049cb3cf PB |
144 | TypeImpl *type_register(const TypeInfo *info) |
145 | { | |
146 | assert(info->parent); | |
147 | return type_register_internal(info); | |
148 | } | |
149 | ||
2f28d2ff AL |
150 | TypeImpl *type_register_static(const TypeInfo *info) |
151 | { | |
152 | return type_register(info); | |
153 | } | |
154 | ||
155 | static TypeImpl *type_get_by_name(const char *name) | |
156 | { | |
157 | if (name == NULL) { | |
158 | return NULL; | |
159 | } | |
160 | ||
161 | return type_table_lookup(name); | |
162 | } | |
163 | ||
164 | static TypeImpl *type_get_parent(TypeImpl *type) | |
165 | { | |
166 | if (!type->parent_type && type->parent) { | |
167 | type->parent_type = type_get_by_name(type->parent); | |
168 | g_assert(type->parent_type != NULL); | |
169 | } | |
170 | ||
171 | return type->parent_type; | |
172 | } | |
173 | ||
174 | static bool type_has_parent(TypeImpl *type) | |
175 | { | |
176 | return (type->parent != NULL); | |
177 | } | |
178 | ||
179 | static size_t type_class_get_size(TypeImpl *ti) | |
180 | { | |
181 | if (ti->class_size) { | |
182 | return ti->class_size; | |
183 | } | |
184 | ||
185 | if (type_has_parent(ti)) { | |
186 | return type_class_get_size(type_get_parent(ti)); | |
187 | } | |
188 | ||
189 | return sizeof(ObjectClass); | |
190 | } | |
191 | ||
aca59af6 IM |
192 | static size_t type_object_get_size(TypeImpl *ti) |
193 | { | |
194 | if (ti->instance_size) { | |
195 | return ti->instance_size; | |
196 | } | |
197 | ||
198 | if (type_has_parent(ti)) { | |
199 | return type_object_get_size(type_get_parent(ti)); | |
200 | } | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
33e95c63 | 205 | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
2f28d2ff | 206 | { |
33e95c63 AL |
207 | assert(target_type); |
208 | ||
b30d8054 | 209 | /* Check if target_type is a direct ancestor of type */ |
33e95c63 AL |
210 | while (type) { |
211 | if (type == target_type) { | |
212 | return true; | |
213 | } | |
2f28d2ff | 214 | |
33e95c63 AL |
215 | type = type_get_parent(type); |
216 | } | |
217 | ||
218 | return false; | |
219 | } | |
220 | ||
221 | static void type_initialize(TypeImpl *ti); | |
222 | ||
b061dc41 PB |
223 | static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type, |
224 | TypeImpl *parent_type) | |
33e95c63 AL |
225 | { |
226 | InterfaceClass *new_iface; | |
227 | TypeInfo info = { }; | |
228 | TypeImpl *iface_impl; | |
229 | ||
b061dc41 PB |
230 | info.parent = parent_type->name; |
231 | info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name); | |
33e95c63 AL |
232 | info.abstract = true; |
233 | ||
b061dc41 PB |
234 | iface_impl = type_new(&info); |
235 | iface_impl->parent_type = parent_type; | |
33e95c63 AL |
236 | type_initialize(iface_impl); |
237 | g_free((char *)info.name); | |
238 | ||
239 | new_iface = (InterfaceClass *)iface_impl->class; | |
240 | new_iface->concrete_class = ti->class; | |
b061dc41 | 241 | new_iface->interface_type = interface_type; |
33e95c63 AL |
242 | |
243 | ti->class->interfaces = g_slist_append(ti->class->interfaces, | |
244 | iface_impl->class); | |
2f28d2ff AL |
245 | } |
246 | ||
16bf7f52 DB |
247 | static void object_property_free(gpointer data) |
248 | { | |
249 | ObjectProperty *prop = data; | |
250 | ||
251 | g_free(prop->name); | |
252 | g_free(prop->type); | |
253 | g_free(prop->description); | |
254 | g_free(prop); | |
255 | } | |
256 | ||
ac451033 | 257 | static void type_initialize(TypeImpl *ti) |
2f28d2ff | 258 | { |
745549c8 | 259 | TypeImpl *parent; |
2f28d2ff AL |
260 | |
261 | if (ti->class) { | |
262 | return; | |
263 | } | |
264 | ||
265 | ti->class_size = type_class_get_size(ti); | |
aca59af6 | 266 | ti->instance_size = type_object_get_size(ti); |
2f28d2ff AL |
267 | |
268 | ti->class = g_malloc0(ti->class_size); | |
2f28d2ff | 269 | |
745549c8 PB |
270 | parent = type_get_parent(ti); |
271 | if (parent) { | |
ac451033 | 272 | type_initialize(parent); |
33e95c63 AL |
273 | GSList *e; |
274 | int i; | |
2f28d2ff | 275 | |
8438a135 | 276 | g_assert_cmpint(parent->class_size, <=, ti->class_size); |
745549c8 | 277 | memcpy(ti->class, parent->class, parent->class_size); |
3e407de4 | 278 | ti->class->interfaces = NULL; |
16bf7f52 DB |
279 | ti->class->properties = g_hash_table_new_full( |
280 | g_str_hash, g_str_equal, g_free, object_property_free); | |
33e95c63 AL |
281 | |
282 | for (e = parent->class->interfaces; e; e = e->next) { | |
b061dc41 PB |
283 | InterfaceClass *iface = e->data; |
284 | ObjectClass *klass = OBJECT_CLASS(iface); | |
285 | ||
286 | type_initialize_interface(ti, iface->interface_type, klass->type); | |
33e95c63 AL |
287 | } |
288 | ||
289 | for (i = 0; i < ti->num_interfaces; i++) { | |
290 | TypeImpl *t = type_get_by_name(ti->interfaces[i].typename); | |
291 | for (e = ti->class->interfaces; e; e = e->next) { | |
292 | TypeImpl *target_type = OBJECT_CLASS(e->data)->type; | |
293 | ||
294 | if (type_is_ancestor(target_type, t)) { | |
295 | break; | |
296 | } | |
297 | } | |
298 | ||
299 | if (e) { | |
300 | continue; | |
301 | } | |
302 | ||
b061dc41 | 303 | type_initialize_interface(ti, t, t); |
33e95c63 | 304 | } |
16bf7f52 DB |
305 | } else { |
306 | ti->class->properties = g_hash_table_new_full( | |
307 | g_str_hash, g_str_equal, g_free, object_property_free); | |
745549c8 | 308 | } |
2f28d2ff | 309 | |
745549c8 | 310 | ti->class->type = ti; |
3b50e311 | 311 | |
745549c8 PB |
312 | while (parent) { |
313 | if (parent->class_base_init) { | |
314 | parent->class_base_init(ti->class, ti->class_data); | |
3b50e311 | 315 | } |
745549c8 | 316 | parent = type_get_parent(parent); |
2f28d2ff AL |
317 | } |
318 | ||
2f28d2ff AL |
319 | if (ti->class_init) { |
320 | ti->class_init(ti->class, ti->class_data); | |
321 | } | |
2f28d2ff AL |
322 | } |
323 | ||
324 | static void object_init_with_type(Object *obj, TypeImpl *ti) | |
325 | { | |
2f28d2ff AL |
326 | if (type_has_parent(ti)) { |
327 | object_init_with_type(obj, type_get_parent(ti)); | |
328 | } | |
329 | ||
2f28d2ff AL |
330 | if (ti->instance_init) { |
331 | ti->instance_init(obj); | |
332 | } | |
333 | } | |
334 | ||
8231c2dd EH |
335 | static void object_post_init_with_type(Object *obj, TypeImpl *ti) |
336 | { | |
337 | if (ti->instance_post_init) { | |
338 | ti->instance_post_init(obj); | |
339 | } | |
340 | ||
341 | if (type_has_parent(ti)) { | |
342 | object_post_init_with_type(obj, type_get_parent(ti)); | |
343 | } | |
344 | } | |
345 | ||
5b9237f6 | 346 | void object_initialize_with_type(void *data, size_t size, TypeImpl *type) |
2f28d2ff AL |
347 | { |
348 | Object *obj = data; | |
349 | ||
350 | g_assert(type != NULL); | |
ac451033 | 351 | type_initialize(type); |
aca59af6 | 352 | |
8438a135 | 353 | g_assert_cmpint(type->instance_size, >=, sizeof(Object)); |
2f28d2ff | 354 | g_assert(type->abstract == false); |
8438a135 | 355 | g_assert_cmpint(size, >=, type->instance_size); |
2f28d2ff AL |
356 | |
357 | memset(obj, 0, type->instance_size); | |
358 | obj->class = type->class; | |
764b6312 | 359 | object_ref(obj); |
b604a854 PF |
360 | obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal, |
361 | NULL, object_property_free); | |
2f28d2ff | 362 | object_init_with_type(obj, type); |
8231c2dd | 363 | object_post_init_with_type(obj, type); |
2f28d2ff AL |
364 | } |
365 | ||
213f0c4f | 366 | void object_initialize(void *data, size_t size, const char *typename) |
2f28d2ff AL |
367 | { |
368 | TypeImpl *type = type_get_by_name(typename); | |
369 | ||
5b9237f6 | 370 | object_initialize_with_type(data, size, type); |
2f28d2ff AL |
371 | } |
372 | ||
5d9d3f47 AF |
373 | static inline bool object_property_is_child(ObjectProperty *prop) |
374 | { | |
375 | return strstart(prop->type, "child<", NULL); | |
376 | } | |
377 | ||
57c9fafe AL |
378 | static void object_property_del_all(Object *obj) |
379 | { | |
b604a854 PF |
380 | ObjectProperty *prop; |
381 | GHashTableIter iter; | |
382 | gpointer key, value; | |
383 | bool released; | |
384 | ||
385 | do { | |
386 | released = false; | |
387 | g_hash_table_iter_init(&iter, obj->properties); | |
388 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
389 | prop = value; | |
390 | if (prop->release) { | |
391 | prop->release(obj, prop->name, prop->opaque); | |
392 | prop->release = NULL; | |
393 | released = true; | |
394 | break; | |
395 | } | |
396 | g_hash_table_iter_remove(&iter); | |
57c9fafe | 397 | } |
b604a854 | 398 | } while (released); |
57c9fafe | 399 | |
b604a854 | 400 | g_hash_table_unref(obj->properties); |
57c9fafe AL |
401 | } |
402 | ||
403 | static void object_property_del_child(Object *obj, Object *child, Error **errp) | |
404 | { | |
405 | ObjectProperty *prop; | |
b604a854 PF |
406 | GHashTableIter iter; |
407 | gpointer key, value; | |
57c9fafe | 408 | |
b604a854 PF |
409 | g_hash_table_iter_init(&iter, obj->properties); |
410 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
411 | prop = value; | |
412 | if (object_property_is_child(prop) && prop->opaque == child) { | |
413 | if (prop->release) { | |
414 | prop->release(obj, prop->name, prop->opaque); | |
415 | prop->release = NULL; | |
416 | } | |
417 | break; | |
418 | } | |
419 | } | |
420 | g_hash_table_iter_init(&iter, obj->properties); | |
421 | while (g_hash_table_iter_next(&iter, &key, &value)) { | |
422 | prop = value; | |
5d9d3f47 | 423 | if (object_property_is_child(prop) && prop->opaque == child) { |
b604a854 | 424 | g_hash_table_iter_remove(&iter); |
6c1fdcf9 | 425 | break; |
57c9fafe AL |
426 | } |
427 | } | |
428 | } | |
429 | ||
430 | void object_unparent(Object *obj) | |
431 | { | |
e998fa8d MT |
432 | if (obj->parent) { |
433 | object_property_del_child(obj->parent, obj, NULL); | |
434 | } | |
57c9fafe AL |
435 | } |
436 | ||
2f28d2ff AL |
437 | static void object_deinit(Object *obj, TypeImpl *type) |
438 | { | |
439 | if (type->instance_finalize) { | |
440 | type->instance_finalize(obj); | |
441 | } | |
442 | ||
2f28d2ff AL |
443 | if (type_has_parent(type)) { |
444 | object_deinit(obj, type_get_parent(type)); | |
445 | } | |
446 | } | |
447 | ||
339c2708 | 448 | static void object_finalize(void *data) |
2f28d2ff AL |
449 | { |
450 | Object *obj = data; | |
451 | TypeImpl *ti = obj->class->type; | |
452 | ||
57c9fafe | 453 | object_property_del_all(obj); |
76a6e1cc | 454 | object_deinit(obj, ti); |
db85b575 | 455 | |
8438a135 | 456 | g_assert_cmpint(obj->ref, ==, 0); |
fde9bf44 PB |
457 | if (obj->free) { |
458 | obj->free(obj); | |
459 | } | |
2f28d2ff AL |
460 | } |
461 | ||
462 | Object *object_new_with_type(Type type) | |
463 | { | |
464 | Object *obj; | |
465 | ||
466 | g_assert(type != NULL); | |
ac451033 | 467 | type_initialize(type); |
2f28d2ff AL |
468 | |
469 | obj = g_malloc(type->instance_size); | |
5b9237f6 | 470 | object_initialize_with_type(obj, type->instance_size, type); |
fde9bf44 | 471 | obj->free = g_free; |
2f28d2ff AL |
472 | |
473 | return obj; | |
474 | } | |
475 | ||
476 | Object *object_new(const char *typename) | |
477 | { | |
478 | TypeImpl *ti = type_get_by_name(typename); | |
479 | ||
480 | return object_new_with_type(ti); | |
481 | } | |
482 | ||
a31bdae5 DB |
483 | |
484 | Object *object_new_with_props(const char *typename, | |
485 | Object *parent, | |
486 | const char *id, | |
487 | Error **errp, | |
488 | ...) | |
489 | { | |
490 | va_list vargs; | |
491 | Object *obj; | |
492 | ||
493 | va_start(vargs, errp); | |
494 | obj = object_new_with_propv(typename, parent, id, errp, vargs); | |
495 | va_end(vargs); | |
496 | ||
497 | return obj; | |
498 | } | |
499 | ||
500 | ||
501 | Object *object_new_with_propv(const char *typename, | |
502 | Object *parent, | |
503 | const char *id, | |
504 | Error **errp, | |
505 | va_list vargs) | |
506 | { | |
507 | Object *obj; | |
508 | ObjectClass *klass; | |
509 | Error *local_err = NULL; | |
510 | ||
511 | klass = object_class_by_name(typename); | |
512 | if (!klass) { | |
513 | error_setg(errp, "invalid object type: %s", typename); | |
514 | return NULL; | |
515 | } | |
516 | ||
517 | if (object_class_is_abstract(klass)) { | |
518 | error_setg(errp, "object type '%s' is abstract", typename); | |
519 | return NULL; | |
520 | } | |
521 | obj = object_new(typename); | |
522 | ||
523 | if (object_set_propv(obj, &local_err, vargs) < 0) { | |
524 | goto error; | |
525 | } | |
526 | ||
527 | object_property_add_child(parent, id, obj, &local_err); | |
528 | if (local_err) { | |
529 | goto error; | |
530 | } | |
531 | ||
532 | if (object_dynamic_cast(obj, TYPE_USER_CREATABLE)) { | |
533 | user_creatable_complete(obj, &local_err); | |
534 | if (local_err) { | |
535 | object_unparent(obj); | |
536 | goto error; | |
537 | } | |
538 | } | |
539 | ||
540 | object_unref(OBJECT(obj)); | |
541 | return obj; | |
542 | ||
543 | error: | |
544 | if (local_err) { | |
545 | error_propagate(errp, local_err); | |
546 | } | |
547 | object_unref(obj); | |
548 | return NULL; | |
549 | } | |
550 | ||
551 | ||
552 | int object_set_props(Object *obj, | |
553 | Error **errp, | |
554 | ...) | |
555 | { | |
556 | va_list vargs; | |
557 | int ret; | |
558 | ||
559 | va_start(vargs, errp); | |
560 | ret = object_set_propv(obj, errp, vargs); | |
561 | va_end(vargs); | |
562 | ||
563 | return ret; | |
564 | } | |
565 | ||
566 | ||
567 | int object_set_propv(Object *obj, | |
568 | Error **errp, | |
569 | va_list vargs) | |
570 | { | |
571 | const char *propname; | |
572 | Error *local_err = NULL; | |
573 | ||
574 | propname = va_arg(vargs, char *); | |
575 | while (propname != NULL) { | |
576 | const char *value = va_arg(vargs, char *); | |
577 | ||
578 | g_assert(value != NULL); | |
579 | object_property_parse(obj, value, propname, &local_err); | |
580 | if (local_err) { | |
581 | error_propagate(errp, local_err); | |
582 | return -1; | |
583 | } | |
584 | propname = va_arg(vargs, char *); | |
585 | } | |
586 | ||
587 | return 0; | |
588 | } | |
589 | ||
590 | ||
2f28d2ff AL |
591 | Object *object_dynamic_cast(Object *obj, const char *typename) |
592 | { | |
b7f43fe4 | 593 | if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) { |
acc4af3f PB |
594 | return obj; |
595 | } | |
596 | ||
2f28d2ff AL |
597 | return NULL; |
598 | } | |
599 | ||
be17f18b PB |
600 | Object *object_dynamic_cast_assert(Object *obj, const char *typename, |
601 | const char *file, int line, const char *func) | |
2f28d2ff | 602 | { |
fa131d94 PB |
603 | trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)", |
604 | typename, file, line, func); | |
605 | ||
3556c233 | 606 | #ifdef CONFIG_QOM_CAST_DEBUG |
03587328 AL |
607 | int i; |
608 | Object *inst; | |
609 | ||
95916abc | 610 | for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 611 | if (obj->class->object_cast_cache[i] == typename) { |
03587328 AL |
612 | goto out; |
613 | } | |
614 | } | |
615 | ||
616 | inst = object_dynamic_cast(obj, typename); | |
2f28d2ff | 617 | |
b7f43fe4 | 618 | if (!inst && obj) { |
be17f18b PB |
619 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
620 | file, line, func, obj, typename); | |
2f28d2ff AL |
621 | abort(); |
622 | } | |
623 | ||
3556c233 | 624 | assert(obj == inst); |
03587328 | 625 | |
95916abc | 626 | if (obj && obj == inst) { |
03587328 | 627 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c PC |
628 | obj->class->object_cast_cache[i - 1] = |
629 | obj->class->object_cast_cache[i]; | |
03587328 | 630 | } |
0ab4c94c | 631 | obj->class->object_cast_cache[i - 1] = typename; |
03587328 AL |
632 | } |
633 | ||
634 | out: | |
3556c233 PB |
635 | #endif |
636 | return obj; | |
2f28d2ff AL |
637 | } |
638 | ||
639 | ObjectClass *object_class_dynamic_cast(ObjectClass *class, | |
640 | const char *typename) | |
641 | { | |
33e95c63 | 642 | ObjectClass *ret = NULL; |
bf0fda34 PB |
643 | TypeImpl *target_type; |
644 | TypeImpl *type; | |
2f28d2ff | 645 | |
bf0fda34 PB |
646 | if (!class) { |
647 | return NULL; | |
648 | } | |
649 | ||
793c96b5 | 650 | /* A simple fast path that can trigger a lot for leaf classes. */ |
bf0fda34 | 651 | type = class->type; |
793c96b5 PB |
652 | if (type->name == typename) { |
653 | return class; | |
654 | } | |
655 | ||
bf0fda34 | 656 | target_type = type_get_by_name(typename); |
9ab880b3 AG |
657 | if (!target_type) { |
658 | /* target class type unknown, so fail the cast */ | |
659 | return NULL; | |
660 | } | |
661 | ||
00e2ceae PC |
662 | if (type->class->interfaces && |
663 | type_is_ancestor(target_type, type_interface)) { | |
33e95c63 AL |
664 | int found = 0; |
665 | GSList *i; | |
2f28d2ff | 666 | |
33e95c63 AL |
667 | for (i = class->interfaces; i; i = i->next) { |
668 | ObjectClass *target_class = i->data; | |
669 | ||
670 | if (type_is_ancestor(target_class->type, target_type)) { | |
671 | ret = target_class; | |
672 | found++; | |
673 | } | |
674 | } | |
675 | ||
676 | /* The match was ambiguous, don't allow a cast */ | |
677 | if (found > 1) { | |
678 | ret = NULL; | |
679 | } | |
680 | } else if (type_is_ancestor(type, target_type)) { | |
681 | ret = class; | |
2f28d2ff AL |
682 | } |
683 | ||
33e95c63 | 684 | return ret; |
2f28d2ff AL |
685 | } |
686 | ||
687 | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, | |
be17f18b PB |
688 | const char *typename, |
689 | const char *file, int line, | |
690 | const char *func) | |
2f28d2ff | 691 | { |
fa131d94 PB |
692 | ObjectClass *ret; |
693 | ||
694 | trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)", | |
695 | typename, file, line, func); | |
2f28d2ff | 696 | |
03587328 AL |
697 | #ifdef CONFIG_QOM_CAST_DEBUG |
698 | int i; | |
699 | ||
9d6a3d58 | 700 | for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 701 | if (class->class_cast_cache[i] == typename) { |
03587328 AL |
702 | ret = class; |
703 | goto out; | |
704 | } | |
705 | } | |
706 | #else | |
9d6a3d58 | 707 | if (!class || !class->interfaces) { |
3556c233 PB |
708 | return class; |
709 | } | |
710 | #endif | |
711 | ||
fa131d94 | 712 | ret = object_class_dynamic_cast(class, typename); |
bf0fda34 | 713 | if (!ret && class) { |
be17f18b PB |
714 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
715 | file, line, func, class, typename); | |
2f28d2ff AL |
716 | abort(); |
717 | } | |
718 | ||
03587328 | 719 | #ifdef CONFIG_QOM_CAST_DEBUG |
9d6a3d58 | 720 | if (class && ret == class) { |
03587328 | 721 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
0ab4c94c | 722 | class->class_cast_cache[i - 1] = class->class_cast_cache[i]; |
03587328 | 723 | } |
0ab4c94c | 724 | class->class_cast_cache[i - 1] = typename; |
03587328 AL |
725 | } |
726 | out: | |
727 | #endif | |
2f28d2ff AL |
728 | return ret; |
729 | } | |
730 | ||
731 | const char *object_get_typename(Object *obj) | |
732 | { | |
733 | return obj->class->type->name; | |
734 | } | |
735 | ||
736 | ObjectClass *object_get_class(Object *obj) | |
737 | { | |
738 | return obj->class; | |
739 | } | |
740 | ||
17862378 AF |
741 | bool object_class_is_abstract(ObjectClass *klass) |
742 | { | |
743 | return klass->type->abstract; | |
744 | } | |
745 | ||
2f28d2ff AL |
746 | const char *object_class_get_name(ObjectClass *klass) |
747 | { | |
748 | return klass->type->name; | |
749 | } | |
750 | ||
751 | ObjectClass *object_class_by_name(const char *typename) | |
752 | { | |
753 | TypeImpl *type = type_get_by_name(typename); | |
754 | ||
755 | if (!type) { | |
756 | return NULL; | |
757 | } | |
758 | ||
ac451033 | 759 | type_initialize(type); |
2f28d2ff AL |
760 | |
761 | return type->class; | |
762 | } | |
763 | ||
e7cce67f PB |
764 | ObjectClass *object_class_get_parent(ObjectClass *class) |
765 | { | |
766 | TypeImpl *type = type_get_parent(class->type); | |
767 | ||
768 | if (!type) { | |
769 | return NULL; | |
770 | } | |
771 | ||
772 | type_initialize(type); | |
773 | ||
774 | return type->class; | |
775 | } | |
776 | ||
2f28d2ff AL |
777 | typedef struct OCFData |
778 | { | |
779 | void (*fn)(ObjectClass *klass, void *opaque); | |
93c511a1 AL |
780 | const char *implements_type; |
781 | bool include_abstract; | |
2f28d2ff AL |
782 | void *opaque; |
783 | } OCFData; | |
784 | ||
785 | static void object_class_foreach_tramp(gpointer key, gpointer value, | |
786 | gpointer opaque) | |
787 | { | |
788 | OCFData *data = opaque; | |
789 | TypeImpl *type = value; | |
93c511a1 | 790 | ObjectClass *k; |
2f28d2ff | 791 | |
ac451033 | 792 | type_initialize(type); |
93c511a1 | 793 | k = type->class; |
2f28d2ff | 794 | |
93c511a1 AL |
795 | if (!data->include_abstract && type->abstract) { |
796 | return; | |
797 | } | |
798 | ||
799 | if (data->implements_type && | |
800 | !object_class_dynamic_cast(k, data->implements_type)) { | |
801 | return; | |
802 | } | |
803 | ||
804 | data->fn(k, data->opaque); | |
2f28d2ff AL |
805 | } |
806 | ||
807 | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), | |
93c511a1 | 808 | const char *implements_type, bool include_abstract, |
2f28d2ff AL |
809 | void *opaque) |
810 | { | |
93c511a1 | 811 | OCFData data = { fn, implements_type, include_abstract, opaque }; |
2f28d2ff | 812 | |
f54c19ca | 813 | enumerating_types = true; |
2f28d2ff | 814 | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
f54c19ca | 815 | enumerating_types = false; |
2f28d2ff | 816 | } |
57c9fafe | 817 | |
d714b8de PC |
818 | static int do_object_child_foreach(Object *obj, |
819 | int (*fn)(Object *child, void *opaque), | |
820 | void *opaque, bool recurse) | |
32efc535 | 821 | { |
b604a854 PF |
822 | GHashTableIter iter; |
823 | ObjectProperty *prop; | |
32efc535 PB |
824 | int ret = 0; |
825 | ||
b604a854 PF |
826 | g_hash_table_iter_init(&iter, obj->properties); |
827 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
32efc535 | 828 | if (object_property_is_child(prop)) { |
d714b8de PC |
829 | Object *child = prop->opaque; |
830 | ||
831 | ret = fn(child, opaque); | |
32efc535 PB |
832 | if (ret != 0) { |
833 | break; | |
834 | } | |
d714b8de PC |
835 | if (recurse) { |
836 | do_object_child_foreach(child, fn, opaque, true); | |
837 | } | |
32efc535 PB |
838 | } |
839 | } | |
840 | return ret; | |
841 | } | |
842 | ||
d714b8de PC |
843 | int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque), |
844 | void *opaque) | |
845 | { | |
846 | return do_object_child_foreach(obj, fn, opaque, false); | |
847 | } | |
848 | ||
849 | int object_child_foreach_recursive(Object *obj, | |
850 | int (*fn)(Object *child, void *opaque), | |
851 | void *opaque) | |
852 | { | |
853 | return do_object_child_foreach(obj, fn, opaque, true); | |
854 | } | |
855 | ||
418ba9e5 AF |
856 | static void object_class_get_list_tramp(ObjectClass *klass, void *opaque) |
857 | { | |
858 | GSList **list = opaque; | |
859 | ||
860 | *list = g_slist_prepend(*list, klass); | |
861 | } | |
862 | ||
863 | GSList *object_class_get_list(const char *implements_type, | |
864 | bool include_abstract) | |
865 | { | |
866 | GSList *list = NULL; | |
867 | ||
868 | object_class_foreach(object_class_get_list_tramp, | |
869 | implements_type, include_abstract, &list); | |
870 | return list; | |
871 | } | |
872 | ||
57c9fafe AL |
873 | void object_ref(Object *obj) |
874 | { | |
8ffad850 PC |
875 | if (!obj) { |
876 | return; | |
877 | } | |
8438a135 | 878 | atomic_inc(&obj->ref); |
57c9fafe AL |
879 | } |
880 | ||
881 | void object_unref(Object *obj) | |
882 | { | |
8ffad850 PC |
883 | if (!obj) { |
884 | return; | |
885 | } | |
8438a135 | 886 | g_assert_cmpint(obj->ref, >, 0); |
57c9fafe AL |
887 | |
888 | /* parent always holds a reference to its children */ | |
f08c03f3 | 889 | if (atomic_fetch_dec(&obj->ref) == 1) { |
57c9fafe AL |
890 | object_finalize(obj); |
891 | } | |
892 | } | |
893 | ||
64607d08 PB |
894 | ObjectProperty * |
895 | object_property_add(Object *obj, const char *name, const char *type, | |
896 | ObjectPropertyAccessor *get, | |
897 | ObjectPropertyAccessor *set, | |
898 | ObjectPropertyRelease *release, | |
899 | void *opaque, Error **errp) | |
57c9fafe | 900 | { |
54852b03 | 901 | ObjectProperty *prop; |
33965904 PC |
902 | size_t name_len = strlen(name); |
903 | ||
904 | if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) { | |
905 | int i; | |
906 | ObjectProperty *ret; | |
907 | char *name_no_array = g_strdup(name); | |
908 | ||
909 | name_no_array[name_len - 3] = '\0'; | |
910 | for (i = 0; ; ++i) { | |
911 | char *full_name = g_strdup_printf("%s[%d]", name_no_array, i); | |
912 | ||
913 | ret = object_property_add(obj, full_name, type, get, set, | |
914 | release, opaque, NULL); | |
915 | g_free(full_name); | |
916 | if (ret) { | |
917 | break; | |
918 | } | |
919 | } | |
920 | g_free(name_no_array); | |
921 | return ret; | |
922 | } | |
54852b03 | 923 | |
16bf7f52 | 924 | if (object_property_find(obj, name, NULL) != NULL) { |
b604a854 | 925 | error_setg(errp, "attempt to add duplicate property '%s'" |
16bf7f52 DB |
926 | " to object (type '%s')", name, |
927 | object_get_typename(obj)); | |
b604a854 | 928 | return NULL; |
54852b03 PM |
929 | } |
930 | ||
931 | prop = g_malloc0(sizeof(*prop)); | |
57c9fafe AL |
932 | |
933 | prop->name = g_strdup(name); | |
934 | prop->type = g_strdup(type); | |
935 | ||
936 | prop->get = get; | |
937 | prop->set = set; | |
938 | prop->release = release; | |
939 | prop->opaque = opaque; | |
940 | ||
b604a854 | 941 | g_hash_table_insert(obj->properties, prop->name, prop); |
64607d08 | 942 | return prop; |
57c9fafe AL |
943 | } |
944 | ||
16bf7f52 DB |
945 | ObjectProperty * |
946 | object_class_property_add(ObjectClass *klass, | |
947 | const char *name, | |
948 | const char *type, | |
949 | ObjectPropertyAccessor *get, | |
950 | ObjectPropertyAccessor *set, | |
951 | ObjectPropertyRelease *release, | |
952 | void *opaque, | |
953 | Error **errp) | |
954 | { | |
955 | ObjectProperty *prop; | |
956 | ||
957 | if (object_class_property_find(klass, name, NULL) != NULL) { | |
958 | error_setg(errp, "attempt to add duplicate property '%s'" | |
959 | " to object (type '%s')", name, | |
960 | object_class_get_name(klass)); | |
961 | return NULL; | |
962 | } | |
963 | ||
964 | prop = g_malloc0(sizeof(*prop)); | |
965 | ||
966 | prop->name = g_strdup(name); | |
967 | prop->type = g_strdup(type); | |
968 | ||
969 | prop->get = get; | |
970 | prop->set = set; | |
971 | prop->release = release; | |
972 | prop->opaque = opaque; | |
973 | ||
974 | g_hash_table_insert(klass->properties, g_strdup(name), prop); | |
975 | ||
976 | return prop; | |
977 | } | |
978 | ||
89bfe000 PB |
979 | ObjectProperty *object_property_find(Object *obj, const char *name, |
980 | Error **errp) | |
57c9fafe AL |
981 | { |
982 | ObjectProperty *prop; | |
16bf7f52 DB |
983 | ObjectClass *klass = object_get_class(obj); |
984 | ||
985 | prop = object_class_property_find(klass, name, NULL); | |
986 | if (prop) { | |
987 | return prop; | |
988 | } | |
57c9fafe | 989 | |
b604a854 PF |
990 | prop = g_hash_table_lookup(obj->properties, name); |
991 | if (prop) { | |
992 | return prop; | |
57c9fafe AL |
993 | } |
994 | ||
f231b88d | 995 | error_setg(errp, "Property '.%s' not found", name); |
57c9fafe AL |
996 | return NULL; |
997 | } | |
998 | ||
7746abd8 DB |
999 | void object_property_iter_init(ObjectPropertyIterator *iter, |
1000 | Object *obj) | |
a00c9482 | 1001 | { |
7746abd8 DB |
1002 | g_hash_table_iter_init(&iter->iter, obj->properties); |
1003 | iter->nextclass = object_get_class(obj); | |
a00c9482 DB |
1004 | } |
1005 | ||
1006 | ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter) | |
1007 | { | |
b604a854 | 1008 | gpointer key, val; |
16bf7f52 DB |
1009 | while (!g_hash_table_iter_next(&iter->iter, &key, &val)) { |
1010 | if (!iter->nextclass) { | |
1011 | return NULL; | |
1012 | } | |
1013 | g_hash_table_iter_init(&iter->iter, iter->nextclass->properties); | |
1014 | iter->nextclass = object_class_get_parent(iter->nextclass); | |
a00c9482 | 1015 | } |
b604a854 | 1016 | return val; |
a00c9482 DB |
1017 | } |
1018 | ||
16bf7f52 DB |
1019 | ObjectProperty *object_class_property_find(ObjectClass *klass, const char *name, |
1020 | Error **errp) | |
1021 | { | |
1022 | ObjectProperty *prop; | |
1023 | ObjectClass *parent_klass; | |
1024 | ||
1025 | parent_klass = object_class_get_parent(klass); | |
1026 | if (parent_klass) { | |
1027 | prop = object_class_property_find(parent_klass, name, NULL); | |
1028 | if (prop) { | |
1029 | return prop; | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | prop = g_hash_table_lookup(klass->properties, name); | |
1034 | if (!prop) { | |
1035 | error_setg(errp, "Property '.%s' not found", name); | |
1036 | } | |
1037 | return prop; | |
1038 | } | |
1039 | ||
57c9fafe AL |
1040 | void object_property_del(Object *obj, const char *name, Error **errp) |
1041 | { | |
b604a854 PF |
1042 | ObjectProperty *prop = g_hash_table_lookup(obj->properties, name); |
1043 | ||
1044 | if (!prop) { | |
1045 | error_setg(errp, "Property '.%s' not found", name); | |
0866aca1 AL |
1046 | return; |
1047 | } | |
57c9fafe | 1048 | |
0866aca1 AL |
1049 | if (prop->release) { |
1050 | prop->release(obj, name, prop->opaque); | |
1051 | } | |
b604a854 | 1052 | g_hash_table_remove(obj->properties, name); |
57c9fafe AL |
1053 | } |
1054 | ||
1055 | void object_property_get(Object *obj, Visitor *v, const char *name, | |
1056 | Error **errp) | |
1057 | { | |
89bfe000 | 1058 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1059 | if (prop == NULL) { |
57c9fafe AL |
1060 | return; |
1061 | } | |
1062 | ||
1063 | if (!prop->get) { | |
c6bd8c70 | 1064 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe | 1065 | } else { |
d7bce999 | 1066 | prop->get(obj, v, name, prop->opaque, errp); |
57c9fafe AL |
1067 | } |
1068 | } | |
1069 | ||
1070 | void object_property_set(Object *obj, Visitor *v, const char *name, | |
1071 | Error **errp) | |
1072 | { | |
89bfe000 | 1073 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1074 | if (prop == NULL) { |
57c9fafe AL |
1075 | return; |
1076 | } | |
1077 | ||
1078 | if (!prop->set) { | |
c6bd8c70 | 1079 | error_setg(errp, QERR_PERMISSION_DENIED); |
57c9fafe | 1080 | } else { |
d7bce999 | 1081 | prop->set(obj, v, name, prop->opaque, errp); |
57c9fafe AL |
1082 | } |
1083 | } | |
1084 | ||
7b7b7d18 PB |
1085 | void object_property_set_str(Object *obj, const char *value, |
1086 | const char *name, Error **errp) | |
1087 | { | |
1088 | QString *qstr = qstring_from_str(value); | |
1089 | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); | |
1090 | ||
1091 | QDECREF(qstr); | |
1092 | } | |
1093 | ||
1094 | char *object_property_get_str(Object *obj, const char *name, | |
1095 | Error **errp) | |
1096 | { | |
1097 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1098 | QString *qstring; | |
1099 | char *retval; | |
1100 | ||
1101 | if (!ret) { | |
1102 | return NULL; | |
1103 | } | |
1104 | qstring = qobject_to_qstring(ret); | |
1105 | if (!qstring) { | |
c6bd8c70 | 1106 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string"); |
7b7b7d18 PB |
1107 | retval = NULL; |
1108 | } else { | |
1109 | retval = g_strdup(qstring_get_str(qstring)); | |
1110 | } | |
1111 | ||
1112 | QDECREF(qstring); | |
1113 | return retval; | |
1114 | } | |
1115 | ||
1d9c5a12 PB |
1116 | void object_property_set_link(Object *obj, Object *value, |
1117 | const char *name, Error **errp) | |
1118 | { | |
d3c49316 PC |
1119 | if (value) { |
1120 | gchar *path = object_get_canonical_path(value); | |
1121 | object_property_set_str(obj, path, name, errp); | |
1122 | g_free(path); | |
1123 | } else { | |
1124 | object_property_set_str(obj, "", name, errp); | |
1125 | } | |
1d9c5a12 PB |
1126 | } |
1127 | ||
1128 | Object *object_property_get_link(Object *obj, const char *name, | |
1129 | Error **errp) | |
1130 | { | |
1131 | char *str = object_property_get_str(obj, name, errp); | |
1132 | Object *target = NULL; | |
1133 | ||
1134 | if (str && *str) { | |
1135 | target = object_resolve_path(str, NULL); | |
1136 | if (!target) { | |
75158ebb MA |
1137 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1138 | "Device '%s' not found", str); | |
1d9c5a12 PB |
1139 | } |
1140 | } | |
1141 | ||
1142 | g_free(str); | |
1143 | return target; | |
1144 | } | |
1145 | ||
7b7b7d18 PB |
1146 | void object_property_set_bool(Object *obj, bool value, |
1147 | const char *name, Error **errp) | |
1148 | { | |
fc48ffc3 | 1149 | QBool *qbool = qbool_from_bool(value); |
7b7b7d18 PB |
1150 | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
1151 | ||
1152 | QDECREF(qbool); | |
1153 | } | |
1154 | ||
1155 | bool object_property_get_bool(Object *obj, const char *name, | |
1156 | Error **errp) | |
1157 | { | |
1158 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1159 | QBool *qbool; | |
1160 | bool retval; | |
1161 | ||
1162 | if (!ret) { | |
1163 | return false; | |
1164 | } | |
1165 | qbool = qobject_to_qbool(ret); | |
1166 | if (!qbool) { | |
c6bd8c70 | 1167 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean"); |
7b7b7d18 PB |
1168 | retval = false; |
1169 | } else { | |
fc48ffc3 | 1170 | retval = qbool_get_bool(qbool); |
7b7b7d18 PB |
1171 | } |
1172 | ||
1173 | QDECREF(qbool); | |
1174 | return retval; | |
1175 | } | |
1176 | ||
1177 | void object_property_set_int(Object *obj, int64_t value, | |
1178 | const char *name, Error **errp) | |
1179 | { | |
1180 | QInt *qint = qint_from_int(value); | |
1181 | object_property_set_qobject(obj, QOBJECT(qint), name, errp); | |
1182 | ||
1183 | QDECREF(qint); | |
1184 | } | |
1185 | ||
1186 | int64_t object_property_get_int(Object *obj, const char *name, | |
1187 | Error **errp) | |
1188 | { | |
1189 | QObject *ret = object_property_get_qobject(obj, name, errp); | |
1190 | QInt *qint; | |
1191 | int64_t retval; | |
1192 | ||
1193 | if (!ret) { | |
1194 | return -1; | |
1195 | } | |
1196 | qint = qobject_to_qint(ret); | |
1197 | if (!qint) { | |
c6bd8c70 | 1198 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int"); |
7b7b7d18 PB |
1199 | retval = -1; |
1200 | } else { | |
1201 | retval = qint_get_int(qint); | |
1202 | } | |
1203 | ||
1204 | QDECREF(qint); | |
1205 | return retval; | |
b2cd7dee PB |
1206 | } |
1207 | ||
a8e3fbed DB |
1208 | typedef struct EnumProperty { |
1209 | const char * const *strings; | |
1210 | int (*get)(Object *, Error **); | |
1211 | void (*set)(Object *, int, Error **); | |
1212 | } EnumProperty; | |
1213 | ||
1f21772d | 1214 | int object_property_get_enum(Object *obj, const char *name, |
a3590dac | 1215 | const char *typename, Error **errp) |
1f21772d | 1216 | { |
4715d42e | 1217 | Error *err = NULL; |
1f21772d HT |
1218 | StringOutputVisitor *sov; |
1219 | StringInputVisitor *siv; | |
976620ac | 1220 | char *str; |
1f21772d | 1221 | int ret; |
a3590dac DB |
1222 | ObjectProperty *prop = object_property_find(obj, name, errp); |
1223 | EnumProperty *enumprop; | |
1224 | ||
1225 | if (prop == NULL) { | |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | if (!g_str_equal(prop->type, typename)) { | |
1230 | error_setg(errp, "Property %s on %s is not '%s' enum type", | |
1231 | name, object_class_get_name( | |
1232 | object_get_class(obj)), typename); | |
1233 | return 0; | |
1234 | } | |
1235 | ||
1236 | enumprop = prop->opaque; | |
1f21772d HT |
1237 | |
1238 | sov = string_output_visitor_new(false); | |
4715d42e MA |
1239 | object_property_get(obj, string_output_get_visitor(sov), name, &err); |
1240 | if (err) { | |
1241 | error_propagate(errp, err); | |
1242 | string_output_visitor_cleanup(sov); | |
1243 | return 0; | |
1244 | } | |
976620ac CF |
1245 | str = string_output_get_string(sov); |
1246 | siv = string_input_visitor_new(str); | |
1f21772d | 1247 | string_output_visitor_cleanup(sov); |
51e72bc1 | 1248 | visit_type_enum(string_input_get_visitor(siv), name, &ret, |
337283df | 1249 | enumprop->strings, errp); |
976620ac CF |
1250 | |
1251 | g_free(str); | |
1f21772d HT |
1252 | string_input_visitor_cleanup(siv); |
1253 | ||
1254 | return ret; | |
1255 | } | |
1256 | ||
1257 | void object_property_get_uint16List(Object *obj, const char *name, | |
1258 | uint16List **list, Error **errp) | |
1259 | { | |
4715d42e | 1260 | Error *err = NULL; |
1f21772d HT |
1261 | StringOutputVisitor *ov; |
1262 | StringInputVisitor *iv; | |
976620ac | 1263 | char *str; |
1f21772d HT |
1264 | |
1265 | ov = string_output_visitor_new(false); | |
1266 | object_property_get(obj, string_output_get_visitor(ov), | |
4715d42e MA |
1267 | name, &err); |
1268 | if (err) { | |
1269 | error_propagate(errp, err); | |
1270 | goto out; | |
1271 | } | |
976620ac CF |
1272 | str = string_output_get_string(ov); |
1273 | iv = string_input_visitor_new(str); | |
51e72bc1 | 1274 | visit_type_uint16List(string_input_get_visitor(iv), NULL, list, errp); |
976620ac CF |
1275 | |
1276 | g_free(str); | |
1f21772d | 1277 | string_input_visitor_cleanup(iv); |
4715d42e MA |
1278 | out: |
1279 | string_output_visitor_cleanup(ov); | |
1f21772d HT |
1280 | } |
1281 | ||
b2cd7dee PB |
1282 | void object_property_parse(Object *obj, const char *string, |
1283 | const char *name, Error **errp) | |
1284 | { | |
f8b7f1a8 EB |
1285 | StringInputVisitor *siv; |
1286 | siv = string_input_visitor_new(string); | |
1287 | object_property_set(obj, string_input_get_visitor(siv), name, errp); | |
b2cd7dee | 1288 | |
f8b7f1a8 | 1289 | string_input_visitor_cleanup(siv); |
b2cd7dee PB |
1290 | } |
1291 | ||
0b7593e0 | 1292 | char *object_property_print(Object *obj, const char *name, bool human, |
b2cd7dee PB |
1293 | Error **errp) |
1294 | { | |
f8b7f1a8 | 1295 | StringOutputVisitor *sov; |
3a53009f GA |
1296 | char *string = NULL; |
1297 | Error *local_err = NULL; | |
b2cd7dee | 1298 | |
f8b7f1a8 EB |
1299 | sov = string_output_visitor_new(human); |
1300 | object_property_get(obj, string_output_get_visitor(sov), name, &local_err); | |
3a53009f GA |
1301 | if (local_err) { |
1302 | error_propagate(errp, local_err); | |
1303 | goto out; | |
1304 | } | |
1305 | ||
f8b7f1a8 | 1306 | string = string_output_get_string(sov); |
3a53009f GA |
1307 | |
1308 | out: | |
f8b7f1a8 | 1309 | string_output_visitor_cleanup(sov); |
b2cd7dee | 1310 | return string; |
7b7b7d18 PB |
1311 | } |
1312 | ||
57c9fafe AL |
1313 | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
1314 | { | |
89bfe000 | 1315 | ObjectProperty *prop = object_property_find(obj, name, errp); |
57c9fafe | 1316 | if (prop == NULL) { |
57c9fafe AL |
1317 | return NULL; |
1318 | } | |
1319 | ||
1320 | return prop->type; | |
1321 | } | |
1322 | ||
1323 | Object *object_get_root(void) | |
1324 | { | |
8b45d447 | 1325 | static Object *root; |
57c9fafe | 1326 | |
8b45d447 AL |
1327 | if (!root) { |
1328 | root = object_new("container"); | |
57c9fafe AL |
1329 | } |
1330 | ||
8b45d447 | 1331 | return root; |
57c9fafe AL |
1332 | } |
1333 | ||
bc2256c4 DB |
1334 | Object *object_get_objects_root(void) |
1335 | { | |
1336 | return container_get(object_get_root(), "/objects"); | |
1337 | } | |
1338 | ||
d7bce999 EB |
1339 | static void object_get_child_property(Object *obj, Visitor *v, |
1340 | const char *name, void *opaque, | |
1341 | Error **errp) | |
57c9fafe AL |
1342 | { |
1343 | Object *child = opaque; | |
1344 | gchar *path; | |
1345 | ||
1346 | path = object_get_canonical_path(child); | |
51e72bc1 | 1347 | visit_type_str(v, name, &path, errp); |
57c9fafe AL |
1348 | g_free(path); |
1349 | } | |
1350 | ||
64607d08 PB |
1351 | static Object *object_resolve_child_property(Object *parent, void *opaque, const gchar *part) |
1352 | { | |
1353 | return opaque; | |
1354 | } | |
1355 | ||
db85b575 AL |
1356 | static void object_finalize_child_property(Object *obj, const char *name, |
1357 | void *opaque) | |
1358 | { | |
1359 | Object *child = opaque; | |
1360 | ||
bffc687d PB |
1361 | if (child->class->unparent) { |
1362 | (child->class->unparent)(child); | |
1363 | } | |
1364 | child->parent = NULL; | |
db85b575 AL |
1365 | object_unref(child); |
1366 | } | |
1367 | ||
57c9fafe AL |
1368 | void object_property_add_child(Object *obj, const char *name, |
1369 | Object *child, Error **errp) | |
1370 | { | |
b0ed5e9f | 1371 | Error *local_err = NULL; |
57c9fafe | 1372 | gchar *type; |
64607d08 | 1373 | ObjectProperty *op; |
57c9fafe | 1374 | |
8faa2f85 PC |
1375 | if (child->parent != NULL) { |
1376 | error_setg(errp, "child object is already parented"); | |
1377 | return; | |
1378 | } | |
1379 | ||
57c9fafe AL |
1380 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
1381 | ||
64607d08 PB |
1382 | op = object_property_add(obj, name, type, object_get_child_property, NULL, |
1383 | object_finalize_child_property, child, &local_err); | |
b0ed5e9f PB |
1384 | if (local_err) { |
1385 | error_propagate(errp, local_err); | |
1386 | goto out; | |
1387 | } | |
64607d08 PB |
1388 | |
1389 | op->resolve = object_resolve_child_property; | |
57c9fafe | 1390 | object_ref(child); |
57c9fafe AL |
1391 | child->parent = obj; |
1392 | ||
b0ed5e9f | 1393 | out: |
57c9fafe AL |
1394 | g_free(type); |
1395 | } | |
1396 | ||
39f72ef9 SH |
1397 | void object_property_allow_set_link(Object *obj, const char *name, |
1398 | Object *val, Error **errp) | |
1399 | { | |
1400 | /* Allow the link to be set, always */ | |
1401 | } | |
1402 | ||
9561fda8 SH |
1403 | typedef struct { |
1404 | Object **child; | |
39f72ef9 | 1405 | void (*check)(Object *, const char *, Object *, Error **); |
9561fda8 SH |
1406 | ObjectPropertyLinkFlags flags; |
1407 | } LinkProperty; | |
1408 | ||
d7bce999 EB |
1409 | static void object_get_link_property(Object *obj, Visitor *v, |
1410 | const char *name, void *opaque, | |
1411 | Error **errp) | |
57c9fafe | 1412 | { |
9561fda8 SH |
1413 | LinkProperty *lprop = opaque; |
1414 | Object **child = lprop->child; | |
57c9fafe AL |
1415 | gchar *path; |
1416 | ||
1417 | if (*child) { | |
1418 | path = object_get_canonical_path(*child); | |
51e72bc1 | 1419 | visit_type_str(v, name, &path, errp); |
57c9fafe AL |
1420 | g_free(path); |
1421 | } else { | |
1422 | path = (gchar *)""; | |
51e72bc1 | 1423 | visit_type_str(v, name, &path, errp); |
57c9fafe AL |
1424 | } |
1425 | } | |
1426 | ||
f5ec6704 SH |
1427 | /* |
1428 | * object_resolve_link: | |
1429 | * | |
1430 | * Lookup an object and ensure its type matches the link property type. This | |
1431 | * is similar to object_resolve_path() except type verification against the | |
1432 | * link property is performed. | |
1433 | * | |
1434 | * Returns: The matched object or NULL on path lookup failures. | |
1435 | */ | |
1436 | static Object *object_resolve_link(Object *obj, const char *name, | |
1437 | const char *path, Error **errp) | |
1438 | { | |
1439 | const char *type; | |
1440 | gchar *target_type; | |
1441 | bool ambiguous = false; | |
1442 | Object *target; | |
1443 | ||
1444 | /* Go from link<FOO> to FOO. */ | |
1445 | type = object_property_get_type(obj, name, NULL); | |
1446 | target_type = g_strndup(&type[5], strlen(type) - 6); | |
1447 | target = object_resolve_path_type(path, target_type, &ambiguous); | |
1448 | ||
1449 | if (ambiguous) { | |
455b0fde EB |
1450 | error_setg(errp, "Path '%s' does not uniquely identify an object", |
1451 | path); | |
f5ec6704 SH |
1452 | } else if (!target) { |
1453 | target = object_resolve_path(path, &ambiguous); | |
1454 | if (target || ambiguous) { | |
c6bd8c70 | 1455 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
f5ec6704 | 1456 | } else { |
75158ebb MA |
1457 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
1458 | "Device '%s' not found", path); | |
f5ec6704 SH |
1459 | } |
1460 | target = NULL; | |
1461 | } | |
1462 | g_free(target_type); | |
1463 | ||
1464 | return target; | |
1465 | } | |
1466 | ||
d7bce999 EB |
1467 | static void object_set_link_property(Object *obj, Visitor *v, |
1468 | const char *name, void *opaque, | |
1469 | Error **errp) | |
57c9fafe | 1470 | { |
c6aed983 | 1471 | Error *local_err = NULL; |
9561fda8 SH |
1472 | LinkProperty *prop = opaque; |
1473 | Object **child = prop->child; | |
c6aed983 SH |
1474 | Object *old_target = *child; |
1475 | Object *new_target = NULL; | |
1476 | char *path = NULL; | |
57c9fafe | 1477 | |
51e72bc1 | 1478 | visit_type_str(v, name, &path, &local_err); |
57c9fafe | 1479 | |
c6aed983 SH |
1480 | if (!local_err && strcmp(path, "") != 0) { |
1481 | new_target = object_resolve_link(obj, name, path, &local_err); | |
57c9fafe AL |
1482 | } |
1483 | ||
1484 | g_free(path); | |
c6aed983 SH |
1485 | if (local_err) { |
1486 | error_propagate(errp, local_err); | |
1487 | return; | |
1488 | } | |
f0cdc966 | 1489 | |
39f72ef9 SH |
1490 | prop->check(obj, name, new_target, &local_err); |
1491 | if (local_err) { | |
1492 | error_propagate(errp, local_err); | |
1493 | return; | |
1494 | } | |
1495 | ||
8ffad850 | 1496 | object_ref(new_target); |
c6aed983 | 1497 | *child = new_target; |
8ffad850 | 1498 | object_unref(old_target); |
57c9fafe AL |
1499 | } |
1500 | ||
64607d08 PB |
1501 | static Object *object_resolve_link_property(Object *parent, void *opaque, const gchar *part) |
1502 | { | |
1503 | LinkProperty *lprop = opaque; | |
1504 | ||
1505 | return *lprop->child; | |
1506 | } | |
1507 | ||
9561fda8 SH |
1508 | static void object_release_link_property(Object *obj, const char *name, |
1509 | void *opaque) | |
1510 | { | |
1511 | LinkProperty *prop = opaque; | |
1512 | ||
1513 | if ((prop->flags & OBJ_PROP_LINK_UNREF_ON_RELEASE) && *prop->child) { | |
1514 | object_unref(*prop->child); | |
1515 | } | |
1516 | g_free(prop); | |
1517 | } | |
1518 | ||
57c9fafe AL |
1519 | void object_property_add_link(Object *obj, const char *name, |
1520 | const char *type, Object **child, | |
39f72ef9 SH |
1521 | void (*check)(Object *, const char *, |
1522 | Object *, Error **), | |
9561fda8 | 1523 | ObjectPropertyLinkFlags flags, |
57c9fafe AL |
1524 | Error **errp) |
1525 | { | |
9561fda8 SH |
1526 | Error *local_err = NULL; |
1527 | LinkProperty *prop = g_malloc(sizeof(*prop)); | |
57c9fafe | 1528 | gchar *full_type; |
64607d08 | 1529 | ObjectProperty *op; |
57c9fafe | 1530 | |
9561fda8 | 1531 | prop->child = child; |
39f72ef9 | 1532 | prop->check = check; |
9561fda8 SH |
1533 | prop->flags = flags; |
1534 | ||
57c9fafe AL |
1535 | full_type = g_strdup_printf("link<%s>", type); |
1536 | ||
64607d08 PB |
1537 | op = object_property_add(obj, name, full_type, |
1538 | object_get_link_property, | |
1539 | check ? object_set_link_property : NULL, | |
1540 | object_release_link_property, | |
1541 | prop, | |
1542 | &local_err); | |
9561fda8 SH |
1543 | if (local_err) { |
1544 | error_propagate(errp, local_err); | |
1545 | g_free(prop); | |
64607d08 | 1546 | goto out; |
9561fda8 | 1547 | } |
57c9fafe | 1548 | |
64607d08 PB |
1549 | op->resolve = object_resolve_link_property; |
1550 | ||
1551 | out: | |
57c9fafe AL |
1552 | g_free(full_type); |
1553 | } | |
1554 | ||
fb9e7e33 PB |
1555 | void object_property_add_const_link(Object *obj, const char *name, |
1556 | Object *target, Error **errp) | |
1557 | { | |
1558 | char *link_type; | |
1559 | ObjectProperty *op; | |
1560 | ||
1561 | link_type = g_strdup_printf("link<%s>", object_get_typename(target)); | |
1562 | op = object_property_add(obj, name, link_type, | |
1563 | object_get_child_property, NULL, | |
1564 | NULL, target, errp); | |
1565 | if (op != NULL) { | |
1566 | op->resolve = object_resolve_child_property; | |
1567 | } | |
1568 | g_free(link_type); | |
1569 | } | |
1570 | ||
11f590b1 SH |
1571 | gchar *object_get_canonical_path_component(Object *obj) |
1572 | { | |
1573 | ObjectProperty *prop = NULL; | |
b604a854 | 1574 | GHashTableIter iter; |
11f590b1 SH |
1575 | |
1576 | g_assert(obj); | |
1577 | g_assert(obj->parent != NULL); | |
1578 | ||
b604a854 PF |
1579 | g_hash_table_iter_init(&iter, obj->parent->properties); |
1580 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
11f590b1 SH |
1581 | if (!object_property_is_child(prop)) { |
1582 | continue; | |
1583 | } | |
1584 | ||
1585 | if (prop->opaque == obj) { | |
1586 | return g_strdup(prop->name); | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | /* obj had a parent but was not a child, should never happen */ | |
1591 | g_assert_not_reached(); | |
1592 | return NULL; | |
1593 | } | |
1594 | ||
57c9fafe AL |
1595 | gchar *object_get_canonical_path(Object *obj) |
1596 | { | |
1597 | Object *root = object_get_root(); | |
11f590b1 | 1598 | char *newpath, *path = NULL; |
57c9fafe AL |
1599 | |
1600 | while (obj != root) { | |
11f590b1 | 1601 | char *component = object_get_canonical_path_component(obj); |
57c9fafe | 1602 | |
11f590b1 SH |
1603 | if (path) { |
1604 | newpath = g_strdup_printf("%s/%s", component, path); | |
1605 | g_free(component); | |
1606 | g_free(path); | |
1607 | path = newpath; | |
1608 | } else { | |
1609 | path = component; | |
57c9fafe AL |
1610 | } |
1611 | ||
57c9fafe AL |
1612 | obj = obj->parent; |
1613 | } | |
1614 | ||
11f590b1 | 1615 | newpath = g_strdup_printf("/%s", path ? path : ""); |
57c9fafe AL |
1616 | g_free(path); |
1617 | ||
1618 | return newpath; | |
1619 | } | |
1620 | ||
3e84b483 | 1621 | Object *object_resolve_path_component(Object *parent, const gchar *part) |
a612b2a6 | 1622 | { |
89bfe000 | 1623 | ObjectProperty *prop = object_property_find(parent, part, NULL); |
a612b2a6 PB |
1624 | if (prop == NULL) { |
1625 | return NULL; | |
1626 | } | |
1627 | ||
64607d08 PB |
1628 | if (prop->resolve) { |
1629 | return prop->resolve(parent, prop->opaque, part); | |
a612b2a6 PB |
1630 | } else { |
1631 | return NULL; | |
1632 | } | |
1633 | } | |
1634 | ||
57c9fafe AL |
1635 | static Object *object_resolve_abs_path(Object *parent, |
1636 | gchar **parts, | |
02fe2db6 | 1637 | const char *typename, |
57c9fafe AL |
1638 | int index) |
1639 | { | |
57c9fafe AL |
1640 | Object *child; |
1641 | ||
1642 | if (parts[index] == NULL) { | |
02fe2db6 | 1643 | return object_dynamic_cast(parent, typename); |
57c9fafe AL |
1644 | } |
1645 | ||
1646 | if (strcmp(parts[index], "") == 0) { | |
02fe2db6 | 1647 | return object_resolve_abs_path(parent, parts, typename, index + 1); |
57c9fafe AL |
1648 | } |
1649 | ||
a612b2a6 | 1650 | child = object_resolve_path_component(parent, parts[index]); |
57c9fafe AL |
1651 | if (!child) { |
1652 | return NULL; | |
1653 | } | |
1654 | ||
02fe2db6 | 1655 | return object_resolve_abs_path(child, parts, typename, index + 1); |
57c9fafe AL |
1656 | } |
1657 | ||
1658 | static Object *object_resolve_partial_path(Object *parent, | |
1659 | gchar **parts, | |
02fe2db6 | 1660 | const char *typename, |
57c9fafe AL |
1661 | bool *ambiguous) |
1662 | { | |
1663 | Object *obj; | |
b604a854 | 1664 | GHashTableIter iter; |
57c9fafe AL |
1665 | ObjectProperty *prop; |
1666 | ||
02fe2db6 | 1667 | obj = object_resolve_abs_path(parent, parts, typename, 0); |
57c9fafe | 1668 | |
b604a854 PF |
1669 | g_hash_table_iter_init(&iter, parent->properties); |
1670 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { | |
57c9fafe AL |
1671 | Object *found; |
1672 | ||
5d9d3f47 | 1673 | if (!object_property_is_child(prop)) { |
57c9fafe AL |
1674 | continue; |
1675 | } | |
1676 | ||
02fe2db6 PB |
1677 | found = object_resolve_partial_path(prop->opaque, parts, |
1678 | typename, ambiguous); | |
57c9fafe AL |
1679 | if (found) { |
1680 | if (obj) { | |
1681 | if (ambiguous) { | |
1682 | *ambiguous = true; | |
1683 | } | |
1684 | return NULL; | |
1685 | } | |
1686 | obj = found; | |
1687 | } | |
1688 | ||
1689 | if (ambiguous && *ambiguous) { | |
1690 | return NULL; | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | return obj; | |
1695 | } | |
1696 | ||
02fe2db6 PB |
1697 | Object *object_resolve_path_type(const char *path, const char *typename, |
1698 | bool *ambiguous) | |
57c9fafe | 1699 | { |
57c9fafe AL |
1700 | Object *obj; |
1701 | gchar **parts; | |
1702 | ||
1703 | parts = g_strsplit(path, "/", 0); | |
2e1103f6 | 1704 | assert(parts); |
57c9fafe | 1705 | |
2e1103f6 | 1706 | if (parts[0] == NULL || strcmp(parts[0], "") != 0) { |
57c9fafe AL |
1707 | if (ambiguous) { |
1708 | *ambiguous = false; | |
1709 | } | |
02fe2db6 PB |
1710 | obj = object_resolve_partial_path(object_get_root(), parts, |
1711 | typename, ambiguous); | |
57c9fafe | 1712 | } else { |
02fe2db6 | 1713 | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1); |
57c9fafe AL |
1714 | } |
1715 | ||
1716 | g_strfreev(parts); | |
1717 | ||
1718 | return obj; | |
1719 | } | |
1720 | ||
02fe2db6 PB |
1721 | Object *object_resolve_path(const char *path, bool *ambiguous) |
1722 | { | |
1723 | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous); | |
1724 | } | |
1725 | ||
57c9fafe AL |
1726 | typedef struct StringProperty |
1727 | { | |
1728 | char *(*get)(Object *, Error **); | |
1729 | void (*set)(Object *, const char *, Error **); | |
1730 | } StringProperty; | |
1731 | ||
d7bce999 EB |
1732 | static void property_get_str(Object *obj, Visitor *v, const char *name, |
1733 | void *opaque, Error **errp) | |
57c9fafe AL |
1734 | { |
1735 | StringProperty *prop = opaque; | |
1736 | char *value; | |
e1c8237d | 1737 | Error *err = NULL; |
57c9fafe | 1738 | |
e1c8237d MA |
1739 | value = prop->get(obj, &err); |
1740 | if (err) { | |
1741 | error_propagate(errp, err); | |
1742 | return; | |
57c9fafe | 1743 | } |
e1c8237d | 1744 | |
51e72bc1 | 1745 | visit_type_str(v, name, &value, errp); |
e1c8237d | 1746 | g_free(value); |
57c9fafe AL |
1747 | } |
1748 | ||
d7bce999 EB |
1749 | static void property_set_str(Object *obj, Visitor *v, const char *name, |
1750 | void *opaque, Error **errp) | |
57c9fafe AL |
1751 | { |
1752 | StringProperty *prop = opaque; | |
1753 | char *value; | |
1754 | Error *local_err = NULL; | |
1755 | ||
51e72bc1 | 1756 | visit_type_str(v, name, &value, &local_err); |
57c9fafe AL |
1757 | if (local_err) { |
1758 | error_propagate(errp, local_err); | |
1759 | return; | |
1760 | } | |
1761 | ||
1762 | prop->set(obj, value, errp); | |
1763 | g_free(value); | |
1764 | } | |
1765 | ||
7b7b7d18 PB |
1766 | static void property_release_str(Object *obj, const char *name, |
1767 | void *opaque) | |
57c9fafe AL |
1768 | { |
1769 | StringProperty *prop = opaque; | |
1770 | g_free(prop); | |
1771 | } | |
1772 | ||
1773 | void object_property_add_str(Object *obj, const char *name, | |
1774 | char *(*get)(Object *, Error **), | |
1775 | void (*set)(Object *, const char *, Error **), | |
1776 | Error **errp) | |
1777 | { | |
a01aedc8 | 1778 | Error *local_err = NULL; |
57c9fafe AL |
1779 | StringProperty *prop = g_malloc0(sizeof(*prop)); |
1780 | ||
1781 | prop->get = get; | |
1782 | prop->set = set; | |
1783 | ||
1784 | object_property_add(obj, name, "string", | |
7b7b7d18 PB |
1785 | get ? property_get_str : NULL, |
1786 | set ? property_set_str : NULL, | |
1787 | property_release_str, | |
a01aedc8 SH |
1788 | prop, &local_err); |
1789 | if (local_err) { | |
1790 | error_propagate(errp, local_err); | |
1791 | g_free(prop); | |
1792 | } | |
57c9fafe | 1793 | } |
745549c8 | 1794 | |
16bf7f52 DB |
1795 | void object_class_property_add_str(ObjectClass *klass, const char *name, |
1796 | char *(*get)(Object *, Error **), | |
1797 | void (*set)(Object *, const char *, | |
1798 | Error **), | |
1799 | Error **errp) | |
1800 | { | |
1801 | Error *local_err = NULL; | |
1802 | StringProperty *prop = g_malloc0(sizeof(*prop)); | |
1803 | ||
1804 | prop->get = get; | |
1805 | prop->set = set; | |
1806 | ||
1807 | object_class_property_add(klass, name, "string", | |
1808 | get ? property_get_str : NULL, | |
1809 | set ? property_set_str : NULL, | |
1810 | property_release_str, | |
1811 | prop, &local_err); | |
1812 | if (local_err) { | |
1813 | error_propagate(errp, local_err); | |
1814 | g_free(prop); | |
1815 | } | |
1816 | } | |
1817 | ||
0e558843 AL |
1818 | typedef struct BoolProperty |
1819 | { | |
1820 | bool (*get)(Object *, Error **); | |
1821 | void (*set)(Object *, bool, Error **); | |
1822 | } BoolProperty; | |
1823 | ||
d7bce999 EB |
1824 | static void property_get_bool(Object *obj, Visitor *v, const char *name, |
1825 | void *opaque, Error **errp) | |
0e558843 AL |
1826 | { |
1827 | BoolProperty *prop = opaque; | |
1828 | bool value; | |
4715d42e MA |
1829 | Error *err = NULL; |
1830 | ||
1831 | value = prop->get(obj, &err); | |
1832 | if (err) { | |
1833 | error_propagate(errp, err); | |
1834 | return; | |
1835 | } | |
0e558843 | 1836 | |
51e72bc1 | 1837 | visit_type_bool(v, name, &value, errp); |
0e558843 AL |
1838 | } |
1839 | ||
d7bce999 EB |
1840 | static void property_set_bool(Object *obj, Visitor *v, const char *name, |
1841 | void *opaque, Error **errp) | |
0e558843 AL |
1842 | { |
1843 | BoolProperty *prop = opaque; | |
1844 | bool value; | |
1845 | Error *local_err = NULL; | |
1846 | ||
51e72bc1 | 1847 | visit_type_bool(v, name, &value, &local_err); |
0e558843 AL |
1848 | if (local_err) { |
1849 | error_propagate(errp, local_err); | |
1850 | return; | |
1851 | } | |
1852 | ||
1853 | prop->set(obj, value, errp); | |
1854 | } | |
1855 | ||
1856 | static void property_release_bool(Object *obj, const char *name, | |
1857 | void *opaque) | |
1858 | { | |
1859 | BoolProperty *prop = opaque; | |
1860 | g_free(prop); | |
1861 | } | |
1862 | ||
1863 | void object_property_add_bool(Object *obj, const char *name, | |
1864 | bool (*get)(Object *, Error **), | |
1865 | void (*set)(Object *, bool, Error **), | |
1866 | Error **errp) | |
1867 | { | |
a01aedc8 | 1868 | Error *local_err = NULL; |
0e558843 AL |
1869 | BoolProperty *prop = g_malloc0(sizeof(*prop)); |
1870 | ||
1871 | prop->get = get; | |
1872 | prop->set = set; | |
1873 | ||
1874 | object_property_add(obj, name, "bool", | |
1875 | get ? property_get_bool : NULL, | |
1876 | set ? property_set_bool : NULL, | |
1877 | property_release_bool, | |
a01aedc8 SH |
1878 | prop, &local_err); |
1879 | if (local_err) { | |
1880 | error_propagate(errp, local_err); | |
1881 | g_free(prop); | |
1882 | } | |
0e558843 AL |
1883 | } |
1884 | ||
16bf7f52 DB |
1885 | void object_class_property_add_bool(ObjectClass *klass, const char *name, |
1886 | bool (*get)(Object *, Error **), | |
1887 | void (*set)(Object *, bool, Error **), | |
1888 | Error **errp) | |
1889 | { | |
1890 | Error *local_err = NULL; | |
1891 | BoolProperty *prop = g_malloc0(sizeof(*prop)); | |
1892 | ||
1893 | prop->get = get; | |
1894 | prop->set = set; | |
1895 | ||
1896 | object_class_property_add(klass, name, "bool", | |
1897 | get ? property_get_bool : NULL, | |
1898 | set ? property_set_bool : NULL, | |
1899 | property_release_bool, | |
1900 | prop, &local_err); | |
1901 | if (local_err) { | |
1902 | error_propagate(errp, local_err); | |
1903 | g_free(prop); | |
1904 | } | |
1905 | } | |
1906 | ||
d7bce999 EB |
1907 | static void property_get_enum(Object *obj, Visitor *v, const char *name, |
1908 | void *opaque, Error **errp) | |
a8e3fbed DB |
1909 | { |
1910 | EnumProperty *prop = opaque; | |
1911 | int value; | |
4715d42e MA |
1912 | Error *err = NULL; |
1913 | ||
1914 | value = prop->get(obj, &err); | |
1915 | if (err) { | |
1916 | error_propagate(errp, err); | |
1917 | return; | |
1918 | } | |
a8e3fbed | 1919 | |
337283df | 1920 | visit_type_enum(v, name, &value, prop->strings, errp); |
a8e3fbed DB |
1921 | } |
1922 | ||
d7bce999 EB |
1923 | static void property_set_enum(Object *obj, Visitor *v, const char *name, |
1924 | void *opaque, Error **errp) | |
a8e3fbed DB |
1925 | { |
1926 | EnumProperty *prop = opaque; | |
1927 | int value; | |
4715d42e | 1928 | Error *err = NULL; |
a8e3fbed | 1929 | |
337283df | 1930 | visit_type_enum(v, name, &value, prop->strings, &err); |
4715d42e MA |
1931 | if (err) { |
1932 | error_propagate(errp, err); | |
1933 | return; | |
1934 | } | |
a8e3fbed DB |
1935 | prop->set(obj, value, errp); |
1936 | } | |
1937 | ||
1938 | static void property_release_enum(Object *obj, const char *name, | |
1939 | void *opaque) | |
1940 | { | |
1941 | EnumProperty *prop = opaque; | |
1942 | g_free(prop); | |
1943 | } | |
1944 | ||
1945 | void object_property_add_enum(Object *obj, const char *name, | |
1946 | const char *typename, | |
1947 | const char * const *strings, | |
1948 | int (*get)(Object *, Error **), | |
1949 | void (*set)(Object *, int, Error **), | |
1950 | Error **errp) | |
1951 | { | |
1952 | Error *local_err = NULL; | |
1953 | EnumProperty *prop = g_malloc(sizeof(*prop)); | |
1954 | ||
1955 | prop->strings = strings; | |
1956 | prop->get = get; | |
1957 | prop->set = set; | |
1958 | ||
1959 | object_property_add(obj, name, typename, | |
1960 | get ? property_get_enum : NULL, | |
1961 | set ? property_set_enum : NULL, | |
1962 | property_release_enum, | |
1963 | prop, &local_err); | |
1964 | if (local_err) { | |
1965 | error_propagate(errp, local_err); | |
1966 | g_free(prop); | |
1967 | } | |
1968 | } | |
1969 | ||
16bf7f52 DB |
1970 | void object_class_property_add_enum(ObjectClass *klass, const char *name, |
1971 | const char *typename, | |
1972 | const char * const *strings, | |
1973 | int (*get)(Object *, Error **), | |
1974 | void (*set)(Object *, int, Error **), | |
1975 | Error **errp) | |
1976 | { | |
1977 | Error *local_err = NULL; | |
1978 | EnumProperty *prop = g_malloc(sizeof(*prop)); | |
1979 | ||
1980 | prop->strings = strings; | |
1981 | prop->get = get; | |
1982 | prop->set = set; | |
1983 | ||
1984 | object_class_property_add(klass, name, typename, | |
1985 | get ? property_get_enum : NULL, | |
1986 | set ? property_set_enum : NULL, | |
1987 | property_release_enum, | |
1988 | prop, &local_err); | |
1989 | if (local_err) { | |
1990 | error_propagate(errp, local_err); | |
1991 | g_free(prop); | |
1992 | } | |
1993 | } | |
1994 | ||
8e099d14 DG |
1995 | typedef struct TMProperty { |
1996 | void (*get)(Object *, struct tm *, Error **); | |
1997 | } TMProperty; | |
1998 | ||
d7bce999 EB |
1999 | static void property_get_tm(Object *obj, Visitor *v, const char *name, |
2000 | void *opaque, Error **errp) | |
8e099d14 DG |
2001 | { |
2002 | TMProperty *prop = opaque; | |
2003 | Error *err = NULL; | |
2004 | struct tm value; | |
2005 | ||
2006 | prop->get(obj, &value, &err); | |
2007 | if (err) { | |
2008 | goto out; | |
2009 | } | |
2010 | ||
337283df | 2011 | visit_start_struct(v, name, NULL, 0, &err); |
8e099d14 DG |
2012 | if (err) { |
2013 | goto out; | |
2014 | } | |
51e72bc1 | 2015 | visit_type_int32(v, "tm_year", &value.tm_year, &err); |
8e099d14 DG |
2016 | if (err) { |
2017 | goto out_end; | |
2018 | } | |
51e72bc1 | 2019 | visit_type_int32(v, "tm_mon", &value.tm_mon, &err); |
8e099d14 DG |
2020 | if (err) { |
2021 | goto out_end; | |
2022 | } | |
51e72bc1 | 2023 | visit_type_int32(v, "tm_mday", &value.tm_mday, &err); |
8e099d14 DG |
2024 | if (err) { |
2025 | goto out_end; | |
2026 | } | |
51e72bc1 | 2027 | visit_type_int32(v, "tm_hour", &value.tm_hour, &err); |
8e099d14 DG |
2028 | if (err) { |
2029 | goto out_end; | |
2030 | } | |
51e72bc1 | 2031 | visit_type_int32(v, "tm_min", &value.tm_min, &err); |
8e099d14 DG |
2032 | if (err) { |
2033 | goto out_end; | |
2034 | } | |
51e72bc1 | 2035 | visit_type_int32(v, "tm_sec", &value.tm_sec, &err); |
8e099d14 DG |
2036 | if (err) { |
2037 | goto out_end; | |
2038 | } | |
15c2f669 | 2039 | visit_check_struct(v, &err); |
8e099d14 | 2040 | out_end: |
15c2f669 | 2041 | visit_end_struct(v); |
8e099d14 DG |
2042 | out: |
2043 | error_propagate(errp, err); | |
2044 | ||
2045 | } | |
2046 | ||
2047 | static void property_release_tm(Object *obj, const char *name, | |
2048 | void *opaque) | |
2049 | { | |
2050 | TMProperty *prop = opaque; | |
2051 | g_free(prop); | |
2052 | } | |
2053 | ||
2054 | void object_property_add_tm(Object *obj, const char *name, | |
2055 | void (*get)(Object *, struct tm *, Error **), | |
2056 | Error **errp) | |
2057 | { | |
2058 | Error *local_err = NULL; | |
2059 | TMProperty *prop = g_malloc0(sizeof(*prop)); | |
2060 | ||
2061 | prop->get = get; | |
2062 | ||
2063 | object_property_add(obj, name, "struct tm", | |
2064 | get ? property_get_tm : NULL, NULL, | |
2065 | property_release_tm, | |
2066 | prop, &local_err); | |
2067 | if (local_err) { | |
2068 | error_propagate(errp, local_err); | |
2069 | g_free(prop); | |
2070 | } | |
2071 | } | |
2072 | ||
16bf7f52 DB |
2073 | void object_class_property_add_tm(ObjectClass *klass, const char *name, |
2074 | void (*get)(Object *, struct tm *, Error **), | |
2075 | Error **errp) | |
2076 | { | |
2077 | Error *local_err = NULL; | |
2078 | TMProperty *prop = g_malloc0(sizeof(*prop)); | |
2079 | ||
2080 | prop->get = get; | |
2081 | ||
2082 | object_class_property_add(klass, name, "struct tm", | |
2083 | get ? property_get_tm : NULL, NULL, | |
2084 | property_release_tm, | |
2085 | prop, &local_err); | |
2086 | if (local_err) { | |
2087 | error_propagate(errp, local_err); | |
2088 | g_free(prop); | |
2089 | } | |
2090 | } | |
2091 | ||
2f262e06 PB |
2092 | static char *qdev_get_type(Object *obj, Error **errp) |
2093 | { | |
2094 | return g_strdup(object_get_typename(obj)); | |
2095 | } | |
2096 | ||
d7bce999 EB |
2097 | static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *name, |
2098 | void *opaque, Error **errp) | |
e732ea63 MT |
2099 | { |
2100 | uint8_t value = *(uint8_t *)opaque; | |
51e72bc1 | 2101 | visit_type_uint8(v, name, &value, errp); |
e732ea63 MT |
2102 | } |
2103 | ||
d7bce999 EB |
2104 | static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name, |
2105 | void *opaque, Error **errp) | |
e732ea63 MT |
2106 | { |
2107 | uint16_t value = *(uint16_t *)opaque; | |
51e72bc1 | 2108 | visit_type_uint16(v, name, &value, errp); |
e732ea63 MT |
2109 | } |
2110 | ||
d7bce999 EB |
2111 | static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name, |
2112 | void *opaque, Error **errp) | |
e732ea63 MT |
2113 | { |
2114 | uint32_t value = *(uint32_t *)opaque; | |
51e72bc1 | 2115 | visit_type_uint32(v, name, &value, errp); |
e732ea63 MT |
2116 | } |
2117 | ||
d7bce999 EB |
2118 | static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name, |
2119 | void *opaque, Error **errp) | |
e732ea63 MT |
2120 | { |
2121 | uint64_t value = *(uint64_t *)opaque; | |
51e72bc1 | 2122 | visit_type_uint64(v, name, &value, errp); |
e732ea63 MT |
2123 | } |
2124 | ||
2125 | void object_property_add_uint8_ptr(Object *obj, const char *name, | |
2126 | const uint8_t *v, Error **errp) | |
2127 | { | |
2128 | object_property_add(obj, name, "uint8", property_get_uint8_ptr, | |
2129 | NULL, NULL, (void *)v, errp); | |
2130 | } | |
2131 | ||
16bf7f52 DB |
2132 | void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name, |
2133 | const uint8_t *v, Error **errp) | |
2134 | { | |
2135 | object_class_property_add(klass, name, "uint8", property_get_uint8_ptr, | |
2136 | NULL, NULL, (void *)v, errp); | |
2137 | } | |
2138 | ||
e732ea63 MT |
2139 | void object_property_add_uint16_ptr(Object *obj, const char *name, |
2140 | const uint16_t *v, Error **errp) | |
2141 | { | |
2142 | object_property_add(obj, name, "uint16", property_get_uint16_ptr, | |
2143 | NULL, NULL, (void *)v, errp); | |
2144 | } | |
2145 | ||
16bf7f52 DB |
2146 | void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name, |
2147 | const uint16_t *v, Error **errp) | |
2148 | { | |
2149 | object_class_property_add(klass, name, "uint16", property_get_uint16_ptr, | |
2150 | NULL, NULL, (void *)v, errp); | |
2151 | } | |
2152 | ||
e732ea63 MT |
2153 | void object_property_add_uint32_ptr(Object *obj, const char *name, |
2154 | const uint32_t *v, Error **errp) | |
2155 | { | |
2156 | object_property_add(obj, name, "uint32", property_get_uint32_ptr, | |
2157 | NULL, NULL, (void *)v, errp); | |
2158 | } | |
2159 | ||
16bf7f52 DB |
2160 | void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name, |
2161 | const uint32_t *v, Error **errp) | |
2162 | { | |
2163 | object_class_property_add(klass, name, "uint32", property_get_uint32_ptr, | |
2164 | NULL, NULL, (void *)v, errp); | |
2165 | } | |
2166 | ||
e732ea63 MT |
2167 | void object_property_add_uint64_ptr(Object *obj, const char *name, |
2168 | const uint64_t *v, Error **errp) | |
2169 | { | |
2170 | object_property_add(obj, name, "uint64", property_get_uint64_ptr, | |
2171 | NULL, NULL, (void *)v, errp); | |
2172 | } | |
2173 | ||
16bf7f52 DB |
2174 | void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name, |
2175 | const uint64_t *v, Error **errp) | |
2176 | { | |
2177 | object_class_property_add(klass, name, "uint64", property_get_uint64_ptr, | |
2178 | NULL, NULL, (void *)v, errp); | |
2179 | } | |
2180 | ||
ef7c7ff6 SH |
2181 | typedef struct { |
2182 | Object *target_obj; | |
1590d266 | 2183 | char *target_name; |
ef7c7ff6 SH |
2184 | } AliasProperty; |
2185 | ||
d7bce999 EB |
2186 | static void property_get_alias(Object *obj, Visitor *v, const char *name, |
2187 | void *opaque, Error **errp) | |
ef7c7ff6 SH |
2188 | { |
2189 | AliasProperty *prop = opaque; | |
2190 | ||
2191 | object_property_get(prop->target_obj, v, prop->target_name, errp); | |
2192 | } | |
2193 | ||
d7bce999 EB |
2194 | static void property_set_alias(Object *obj, Visitor *v, const char *name, |
2195 | void *opaque, Error **errp) | |
ef7c7ff6 SH |
2196 | { |
2197 | AliasProperty *prop = opaque; | |
2198 | ||
2199 | object_property_set(prop->target_obj, v, prop->target_name, errp); | |
2200 | } | |
2201 | ||
64607d08 PB |
2202 | static Object *property_resolve_alias(Object *obj, void *opaque, |
2203 | const gchar *part) | |
2204 | { | |
2205 | AliasProperty *prop = opaque; | |
2206 | ||
2207 | return object_resolve_path_component(prop->target_obj, prop->target_name); | |
2208 | } | |
2209 | ||
ef7c7ff6 SH |
2210 | static void property_release_alias(Object *obj, const char *name, void *opaque) |
2211 | { | |
2212 | AliasProperty *prop = opaque; | |
2213 | ||
1590d266 | 2214 | g_free(prop->target_name); |
ef7c7ff6 SH |
2215 | g_free(prop); |
2216 | } | |
2217 | ||
2218 | void object_property_add_alias(Object *obj, const char *name, | |
2219 | Object *target_obj, const char *target_name, | |
2220 | Error **errp) | |
2221 | { | |
2222 | AliasProperty *prop; | |
64607d08 | 2223 | ObjectProperty *op; |
ef7c7ff6 | 2224 | ObjectProperty *target_prop; |
d190698e | 2225 | gchar *prop_type; |
8ae9a9ef | 2226 | Error *local_err = NULL; |
ef7c7ff6 SH |
2227 | |
2228 | target_prop = object_property_find(target_obj, target_name, errp); | |
2229 | if (!target_prop) { | |
2230 | return; | |
2231 | } | |
2232 | ||
d190698e PB |
2233 | if (object_property_is_child(target_prop)) { |
2234 | prop_type = g_strdup_printf("link%s", | |
2235 | target_prop->type + strlen("child")); | |
2236 | } else { | |
2237 | prop_type = g_strdup(target_prop->type); | |
2238 | } | |
2239 | ||
ef7c7ff6 SH |
2240 | prop = g_malloc(sizeof(*prop)); |
2241 | prop->target_obj = target_obj; | |
1590d266 | 2242 | prop->target_name = g_strdup(target_name); |
ef7c7ff6 | 2243 | |
d190698e | 2244 | op = object_property_add(obj, name, prop_type, |
64607d08 PB |
2245 | property_get_alias, |
2246 | property_set_alias, | |
2247 | property_release_alias, | |
8ae9a9ef GA |
2248 | prop, &local_err); |
2249 | if (local_err) { | |
2250 | error_propagate(errp, local_err); | |
2251 | g_free(prop); | |
2252 | goto out; | |
2253 | } | |
64607d08 | 2254 | op->resolve = property_resolve_alias; |
d190698e | 2255 | |
a18bb417 | 2256 | object_property_set_description(obj, op->name, |
80742642 GA |
2257 | target_prop->description, |
2258 | &error_abort); | |
2259 | ||
8ae9a9ef | 2260 | out: |
d190698e | 2261 | g_free(prop_type); |
ef7c7ff6 SH |
2262 | } |
2263 | ||
80742642 GA |
2264 | void object_property_set_description(Object *obj, const char *name, |
2265 | const char *description, Error **errp) | |
2266 | { | |
2267 | ObjectProperty *op; | |
2268 | ||
2269 | op = object_property_find(obj, name, errp); | |
2270 | if (!op) { | |
2271 | return; | |
2272 | } | |
2273 | ||
2274 | g_free(op->description); | |
2275 | op->description = g_strdup(description); | |
2276 | } | |
2277 | ||
16bf7f52 DB |
2278 | void object_class_property_set_description(ObjectClass *klass, |
2279 | const char *name, | |
2280 | const char *description, | |
2281 | Error **errp) | |
2282 | { | |
2283 | ObjectProperty *op; | |
2284 | ||
2285 | op = g_hash_table_lookup(klass->properties, name); | |
2286 | if (!op) { | |
2287 | error_setg(errp, "Property '.%s' not found", name); | |
2288 | return; | |
2289 | } | |
2290 | ||
2291 | g_free(op->description); | |
2292 | op->description = g_strdup(description); | |
2293 | } | |
2294 | ||
2f262e06 PB |
2295 | static void object_instance_init(Object *obj) |
2296 | { | |
2297 | object_property_add_str(obj, "type", qdev_get_type, NULL, NULL); | |
2298 | } | |
2299 | ||
745549c8 PB |
2300 | static void register_types(void) |
2301 | { | |
2302 | static TypeInfo interface_info = { | |
2303 | .name = TYPE_INTERFACE, | |
33e95c63 | 2304 | .class_size = sizeof(InterfaceClass), |
745549c8 PB |
2305 | .abstract = true, |
2306 | }; | |
2307 | ||
2308 | static TypeInfo object_info = { | |
2309 | .name = TYPE_OBJECT, | |
2310 | .instance_size = sizeof(Object), | |
2f262e06 | 2311 | .instance_init = object_instance_init, |
745549c8 PB |
2312 | .abstract = true, |
2313 | }; | |
2314 | ||
049cb3cf PB |
2315 | type_interface = type_register_internal(&interface_info); |
2316 | type_register_internal(&object_info); | |
745549c8 PB |
2317 | } |
2318 | ||
2319 | type_init(register_types) |