blob: 6a01d56546968c094ac4831acb2ce272b22fc565 [file] [log] [blame]
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001/*
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
Peter Maydell9bbc8532016-01-29 17:50:02 +000013#include "qemu/osdep.h"
Markus Armbruster13d4ff02019-08-12 07:23:37 +020014#include "hw/qdev-core.h"
Markus Armbrusterda34e652016-03-14 09:01:28 +010015#include "qapi/error.h"
Paolo Bonzini14cccb62012-12-17 18:19:50 +010016#include "qom/object.h"
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +010017#include "qom/object_interfaces.h"
Veronia Bahaaf348b6d2016-03-20 19:16:19 +020018#include "qemu/cutils.h"
Paolo Bonzini7b1b5d12012-12-17 18:19:43 +010019#include "qapi/visitor.h"
Paolo Bonzinib2cd7de2012-02-09 09:52:59 +010020#include "qapi/string-input-visitor.h"
21#include "qapi/string-output-visitor.h"
Marc-André Lureau0e76ed02020-01-10 19:30:23 +040022#include "qapi/qobject-input-visitor.h"
Markus Armbrustereb815e22018-02-11 10:36:05 +010023#include "qapi/qapi-builtin-visit.h"
Paolo Bonzini7b1b5d12012-12-17 18:19:43 +010024#include "qapi/qmp/qerror.h"
Marc-André Lureau0e76ed02020-01-10 19:30:23 +040025#include "qapi/qmp/qjson.h"
Paolo Bonzinifa131d92013-05-10 14:16:39 +020026#include "trace.h"
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060027
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +010028/* TODO: replace QObject with a simpler visitor to avoid a dependency
29 * of the QOM core on QObject? */
Paolo Bonzini14cccb62012-12-17 18:19:50 +010030#include "qom/qom-qobject.h"
Paolo Bonzini7b1b5d12012-12-17 18:19:43 +010031#include "qapi/qmp/qbool.h"
Markus Armbruster15280c32018-02-01 12:18:36 +010032#include "qapi/qmp/qnum.h"
Paolo Bonzini7b1b5d12012-12-17 18:19:43 +010033#include "qapi/qmp/qstring.h"
Philippe Mathieu-Daudée02bdf12019-04-27 15:56:42 +020034#include "qemu/error-report.h"
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +010035
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060036#define MAX_INTERFACES 32
37
38typedef struct InterfaceImpl InterfaceImpl;
39typedef struct TypeImpl TypeImpl;
40
41struct InterfaceImpl
42{
Anthony Liguori33e95c62012-08-10 13:16:10 +100043 const char *typename;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060044};
45
46struct TypeImpl
47{
48 const char *name;
49
50 size_t class_size;
51
52 size_t instance_size;
Richard Henderson4c880f32020-09-15 17:46:34 -070053 size_t instance_align;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060054
55 void (*class_init)(ObjectClass *klass, void *data);
Paolo Bonzini3b50e312012-05-02 13:30:55 +020056 void (*class_base_init)(ObjectClass *klass, void *data);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060057
58 void *class_data;
59
60 void (*instance_init)(Object *obj);
Eduardo Habkost8231c2d2013-07-10 17:08:41 -030061 void (*instance_post_init)(Object *obj);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060062 void (*instance_finalize)(Object *obj);
63
64 bool abstract;
65
66 const char *parent;
67 TypeImpl *parent_type;
68
69 ObjectClass *class;
70
71 int num_interfaces;
72 InterfaceImpl interfaces[MAX_INTERFACES];
73};
74
Paolo Bonzini9970bd82012-02-03 11:51:39 +010075static Type type_interface;
76
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060077static GHashTable *type_table_get(void)
78{
79 static GHashTable *type_table;
80
81 if (type_table == NULL) {
82 type_table = g_hash_table_new(g_str_hash, g_str_equal);
83 }
84
85 return type_table;
86}
87
Hervé Poussineauf54c19c2013-12-03 16:42:00 +010088static bool enumerating_types;
89
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060090static void type_table_add(TypeImpl *ti)
91{
Hervé Poussineauf54c19c2013-12-03 16:42:00 +010092 assert(!enumerating_types);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -060093 g_hash_table_insert(type_table_get(), (void *)ti->name, ti);
94}
95
96static TypeImpl *type_table_lookup(const char *name)
97{
98 return g_hash_table_lookup(type_table_get(), name);
99}
100
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100101static TypeImpl *type_new(const TypeInfo *info)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600102{
103 TypeImpl *ti = g_malloc0(sizeof(*ti));
Anthony Liguori33e95c62012-08-10 13:16:10 +1000104 int i;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600105
106 g_assert(info->name != NULL);
107
Anthony Liguori73093352012-01-25 13:37:36 -0600108 if (type_table_lookup(info->name) != NULL) {
109 fprintf(stderr, "Registering `%s' which already exists\n", info->name);
110 abort();
111 }
112
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600113 ti->name = g_strdup(info->name);
114 ti->parent = g_strdup(info->parent);
115
116 ti->class_size = info->class_size;
117 ti->instance_size = info->instance_size;
Richard Henderson4c880f32020-09-15 17:46:34 -0700118 ti->instance_align = info->instance_align;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600119
120 ti->class_init = info->class_init;
Paolo Bonzini3b50e312012-05-02 13:30:55 +0200121 ti->class_base_init = info->class_base_init;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600122 ti->class_data = info->class_data;
123
124 ti->instance_init = info->instance_init;
Eduardo Habkost8231c2d2013-07-10 17:08:41 -0300125 ti->instance_post_init = info->instance_post_init;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600126 ti->instance_finalize = info->instance_finalize;
127
128 ti->abstract = info->abstract;
129
Anthony Liguori33e95c62012-08-10 13:16:10 +1000130 for (i = 0; info->interfaces && info->interfaces[i].type; i++) {
131 ti->interfaces[i].typename = g_strdup(info->interfaces[i].type);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600132 }
Anthony Liguori33e95c62012-08-10 13:16:10 +1000133 ti->num_interfaces = i;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600134
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100135 return ti;
136}
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600137
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100138static TypeImpl *type_register_internal(const TypeInfo *info)
139{
140 TypeImpl *ti;
141 ti = type_new(info);
142
143 type_table_add(ti);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600144 return ti;
145}
146
Paolo Bonzini049cb3c2012-04-04 15:58:40 +0200147TypeImpl *type_register(const TypeInfo *info)
148{
149 assert(info->parent);
150 return type_register_internal(info);
151}
152
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600153TypeImpl *type_register_static(const TypeInfo *info)
154{
155 return type_register(info);
156}
157
Igor Mammedovaa04c9d22017-10-09 21:50:49 +0200158void type_register_static_array(const TypeInfo *infos, int nr_infos)
159{
160 int i;
161
162 for (i = 0; i < nr_infos; i++) {
163 type_register_static(&infos[i]);
164 }
165}
166
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600167static TypeImpl *type_get_by_name(const char *name)
168{
169 if (name == NULL) {
170 return NULL;
171 }
172
173 return type_table_lookup(name);
174}
175
176static TypeImpl *type_get_parent(TypeImpl *type)
177{
178 if (!type->parent_type && type->parent) {
179 type->parent_type = type_get_by_name(type->parent);
Philippe Mathieu-Daudé89d337f2020-01-21 12:03:45 +0100180 if (!type->parent_type) {
181 fprintf(stderr, "Type '%s' is missing its parent '%s'\n",
182 type->name, type->parent);
183 abort();
184 }
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600185 }
186
187 return type->parent_type;
188}
189
190static bool type_has_parent(TypeImpl *type)
191{
192 return (type->parent != NULL);
193}
194
195static size_t type_class_get_size(TypeImpl *ti)
196{
197 if (ti->class_size) {
198 return ti->class_size;
199 }
200
201 if (type_has_parent(ti)) {
202 return type_class_get_size(type_get_parent(ti));
203 }
204
205 return sizeof(ObjectClass);
206}
207
Igor Mitsyankoaca59af2012-02-28 15:57:10 +0400208static size_t type_object_get_size(TypeImpl *ti)
209{
210 if (ti->instance_size) {
211 return ti->instance_size;
212 }
213
214 if (type_has_parent(ti)) {
215 return type_object_get_size(type_get_parent(ti));
216 }
217
218 return 0;
219}
220
Bharata B Rao3f97b532016-06-10 06:29:00 +0530221size_t object_type_get_instance_size(const char *typename)
222{
223 TypeImpl *type = type_get_by_name(typename);
224
225 g_assert(type != NULL);
226 return type_object_get_size(type);
227}
228
Anthony Liguori33e95c62012-08-10 13:16:10 +1000229static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600230{
Anthony Liguori33e95c62012-08-10 13:16:10 +1000231 assert(target_type);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600232
Cao jinb30d8052015-11-03 10:36:42 +0800233 /* Check if target_type is a direct ancestor of type */
Anthony Liguori33e95c62012-08-10 13:16:10 +1000234 while (type) {
235 if (type == target_type) {
236 return true;
237 }
238
239 type = type_get_parent(type);
240 }
241
242 return false;
243}
244
245static void type_initialize(TypeImpl *ti);
246
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100247static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type,
248 TypeImpl *parent_type)
Anthony Liguori33e95c62012-08-10 13:16:10 +1000249{
250 InterfaceClass *new_iface;
251 TypeInfo info = { };
252 TypeImpl *iface_impl;
253
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100254 info.parent = parent_type->name;
255 info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name);
Anthony Liguori33e95c62012-08-10 13:16:10 +1000256 info.abstract = true;
257
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100258 iface_impl = type_new(&info);
259 iface_impl->parent_type = parent_type;
Anthony Liguori33e95c62012-08-10 13:16:10 +1000260 type_initialize(iface_impl);
261 g_free((char *)info.name);
262
263 new_iface = (InterfaceClass *)iface_impl->class;
264 new_iface->concrete_class = ti->class;
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100265 new_iface->interface_type = interface_type;
Anthony Liguori33e95c62012-08-10 13:16:10 +1000266
Masahiro Yamada3d912932020-05-13 03:25:01 +0900267 ti->class->interfaces = g_slist_append(ti->class->interfaces, new_iface);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600268}
269
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +0100270static void object_property_free(gpointer data)
271{
272 ObjectProperty *prop = data;
273
Marc-André Lureau0e76ed02020-01-10 19:30:23 +0400274 if (prop->defval) {
275 qobject_unref(prop->defval);
276 prop->defval = NULL;
277 }
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +0100278 g_free(prop->name);
279 g_free(prop->type);
280 g_free(prop->description);
281 g_free(prop);
282}
283
Igor Mitsyankoac451032012-02-28 15:57:11 +0400284static void type_initialize(TypeImpl *ti)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600285{
Paolo Bonzini745549c2012-03-31 16:45:54 +0200286 TypeImpl *parent;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600287
288 if (ti->class) {
289 return;
290 }
291
292 ti->class_size = type_class_get_size(ti);
Igor Mitsyankoaca59af2012-02-28 15:57:10 +0400293 ti->instance_size = type_object_get_size(ti);
Eduardo Habkost1c6d75d2016-12-12 16:31:01 -0200294 /* Any type with zero instance_size is implicitly abstract.
295 * This means interface types are all abstract.
296 */
297 if (ti->instance_size == 0) {
298 ti->abstract = true;
299 }
Marc-André Lureau422ca142018-09-12 16:53:03 +0400300 if (type_is_ancestor(ti, type_interface)) {
301 assert(ti->instance_size == 0);
302 assert(ti->abstract);
303 assert(!ti->instance_init);
304 assert(!ti->instance_post_init);
305 assert(!ti->instance_finalize);
306 assert(!ti->num_interfaces);
307 }
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600308 ti->class = g_malloc0(ti->class_size);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600309
Paolo Bonzini745549c2012-03-31 16:45:54 +0200310 parent = type_get_parent(ti);
311 if (parent) {
Igor Mitsyankoac451032012-02-28 15:57:11 +0400312 type_initialize(parent);
Anthony Liguori33e95c62012-08-10 13:16:10 +1000313 GSList *e;
314 int i;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600315
Markus Armbruster719a3072018-06-08 19:02:31 +0200316 g_assert(parent->class_size <= ti->class_size);
Marc-André Lureaud5e633f2020-01-10 19:30:14 +0400317 g_assert(parent->instance_size <= ti->instance_size);
Paolo Bonzini745549c2012-03-31 16:45:54 +0200318 memcpy(ti->class, parent->class, parent->class_size);
Peter Crosthwaite3e407de2013-02-19 14:02:09 +1000319 ti->class->interfaces = NULL;
Anthony Liguori33e95c62012-08-10 13:16:10 +1000320
321 for (e = parent->class->interfaces; e; e = e->next) {
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100322 InterfaceClass *iface = e->data;
323 ObjectClass *klass = OBJECT_CLASS(iface);
324
325 type_initialize_interface(ti, iface->interface_type, klass->type);
Anthony Liguori33e95c62012-08-10 13:16:10 +1000326 }
327
328 for (i = 0; i < ti->num_interfaces; i++) {
329 TypeImpl *t = type_get_by_name(ti->interfaces[i].typename);
Philippe Mathieu-Daudéa9ee3a92020-01-18 17:23:48 +0100330 if (!t) {
331 error_report("missing interface '%s' for object '%s'",
332 ti->interfaces[i].typename, parent->name);
333 abort();
334 }
Anthony Liguori33e95c62012-08-10 13:16:10 +1000335 for (e = ti->class->interfaces; e; e = e->next) {
336 TypeImpl *target_type = OBJECT_CLASS(e->data)->type;
337
338 if (type_is_ancestor(target_type, t)) {
339 break;
340 }
341 }
342
343 if (e) {
344 continue;
345 }
346
Paolo Bonzinib061dc42013-12-03 16:41:59 +0100347 type_initialize_interface(ti, t, t);
Anthony Liguori33e95c62012-08-10 13:16:10 +1000348 }
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600349 }
350
Masahiro Yamadae5a0cc52020-05-13 02:26:15 +0900351 ti->class->properties = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
352 object_property_free);
353
Paolo Bonzini745549c2012-03-31 16:45:54 +0200354 ti->class->type = ti;
355
356 while (parent) {
357 if (parent->class_base_init) {
358 parent->class_base_init(ti->class, ti->class_data);
359 }
360 parent = type_get_parent(parent);
361 }
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600362
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600363 if (ti->class_init) {
364 ti->class_init(ti->class, ti->class_data);
365 }
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600366}
367
368static void object_init_with_type(Object *obj, TypeImpl *ti)
369{
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600370 if (type_has_parent(ti)) {
371 object_init_with_type(obj, type_get_parent(ti));
372 }
373
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600374 if (ti->instance_init) {
375 ti->instance_init(obj);
376 }
377}
378
Eduardo Habkost8231c2d2013-07-10 17:08:41 -0300379static void object_post_init_with_type(Object *obj, TypeImpl *ti)
380{
381 if (ti->instance_post_init) {
382 ti->instance_post_init(obj);
383 }
384
385 if (type_has_parent(ti)) {
386 object_post_init_with_type(obj, type_get_parent(ti));
387 }
388}
389
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200390bool object_apply_global_props(Object *obj, const GPtrArray *props,
391 Error **errp)
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400392{
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400393 int i;
394
395 if (!props) {
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200396 return true;
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400397 }
398
399 for (i = 0; i < props->len; i++) {
400 GlobalProperty *p = g_ptr_array_index(props, i);
Eduardo Habkostd769f0d2019-01-10 00:02:57 -0200401 Error *err = NULL;
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400402
403 if (object_dynamic_cast(obj, p->driver) == NULL) {
404 continue;
405 }
Daniel P. Berrangéefba1592020-09-14 14:56:17 +0100406 if (p->optional && !object_property_find(obj, p->property)) {
Dr. David Alan Gilbert92fd4532019-07-29 17:29:02 +0100407 continue;
408 }
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400409 p->used = true;
Markus Armbruster778a2dc2020-07-07 18:05:56 +0200410 if (!object_property_parse(obj, p->property, p->value, &err)) {
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400411 error_prepend(&err, "can't apply global %s.%s=%s: ",
412 p->driver, p->property, p->value);
Marc-André Lureau50545b22018-11-07 15:35:34 +0400413 /*
414 * If errp != NULL, propagate error and return.
415 * If errp == NULL, report a warning, but keep going
416 * with the remaining globals.
417 */
418 if (errp) {
419 error_propagate(errp, err);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200420 return false;
Marc-André Lureau50545b22018-11-07 15:35:34 +0400421 } else {
422 warn_report_err(err);
423 }
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400424 }
425 }
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200426
427 return true;
Marc-André Lureauea9ce892018-11-26 22:04:32 +0400428}
429
Markus Armbruster617902a2019-03-08 14:14:35 +0100430/*
431 * Global property defaults
432 * Slot 0: accelerator's global property defaults
433 * Slot 1: machine's global property defaults
Paolo Bonzini1fff3c22019-11-13 13:33:44 +0100434 * Slot 2: global properties from legacy command line option
Markus Armbruster617902a2019-03-08 14:14:35 +0100435 * Each is a GPtrArray of of GlobalProperty.
436 * Applied in order, later entries override earlier ones.
437 */
Paolo Bonzini1fff3c22019-11-13 13:33:44 +0100438static GPtrArray *object_compat_props[3];
439
440/*
441 * Retrieve @GPtrArray for global property defined with options
442 * other than "-global". These are generally used for syntactic
443 * sugar and legacy command line options.
444 */
Greg Kurza8dc82c2020-08-14 09:24:50 +0200445void object_register_sugar_prop(const char *driver, const char *prop,
446 const char *value, bool optional)
Paolo Bonzini1fff3c22019-11-13 13:33:44 +0100447{
448 GlobalProperty *g;
449 if (!object_compat_props[2]) {
450 object_compat_props[2] = g_ptr_array_new();
451 }
452 g = g_new0(GlobalProperty, 1);
453 g->driver = g_strdup(driver);
454 g->property = g_strdup(prop);
455 g->value = g_strdup(value);
Greg Kurza8dc82c2020-08-14 09:24:50 +0200456 g->optional = optional;
Paolo Bonzini1fff3c22019-11-13 13:33:44 +0100457 g_ptr_array_add(object_compat_props[2], g);
458}
Markus Armbruster617902a2019-03-08 14:14:35 +0100459
460/*
461 * Set machine's global property defaults to @compat_props.
462 * May be called at most once.
463 */
464void object_set_machine_compat_props(GPtrArray *compat_props)
465{
466 assert(!object_compat_props[1]);
467 object_compat_props[1] = compat_props;
468}
469
470/*
471 * Set accelerator's global property defaults to @compat_props.
472 * May be called at most once.
473 */
474void object_set_accelerator_compat_props(GPtrArray *compat_props)
475{
476 assert(!object_compat_props[0]);
477 object_compat_props[0] = compat_props;
478}
479
480void object_apply_compat_props(Object *obj)
481{
482 int i;
483
484 for (i = 0; i < ARRAY_SIZE(object_compat_props); i++) {
485 object_apply_global_props(obj, object_compat_props[i],
Paolo Bonzini1fff3c22019-11-13 13:33:44 +0100486 i == 2 ? &error_fatal : &error_abort);
Markus Armbruster617902a2019-03-08 14:14:35 +0100487 }
488}
489
Marc-André Lureau2a1be4b2020-01-10 19:30:19 +0400490static void object_class_property_init_all(Object *obj)
491{
492 ObjectPropertyIterator iter;
493 ObjectProperty *prop;
494
495 object_class_property_iter_init(&iter, object_get_class(obj));
496 while ((prop = object_property_iter_next(&iter))) {
497 if (prop->init) {
498 prop->init(obj, prop);
499 }
500 }
501}
502
Masahiro Yamadae27a9592020-05-13 02:31:04 +0900503static void object_initialize_with_type(Object *obj, size_t size, TypeImpl *type)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600504{
Igor Mitsyankoac451032012-02-28 15:57:11 +0400505 type_initialize(type);
Igor Mitsyankoaca59af2012-02-28 15:57:10 +0400506
Markus Armbruster719a3072018-06-08 19:02:31 +0200507 g_assert(type->instance_size >= sizeof(Object));
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600508 g_assert(type->abstract == false);
Markus Armbruster719a3072018-06-08 19:02:31 +0200509 g_assert(size >= type->instance_size);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600510
511 memset(obj, 0, type->instance_size);
512 obj->class = type->class;
Paolo Bonzini764b6312012-11-23 09:47:12 +0100513 object_ref(obj);
Marc-André Lureau2a1be4b2020-01-10 19:30:19 +0400514 object_class_property_init_all(obj);
Pavel Fedinb604a852015-10-13 13:37:45 +0100515 obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal,
516 NULL, object_property_free);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600517 object_init_with_type(obj, type);
Eduardo Habkost8231c2d2013-07-10 17:08:41 -0300518 object_post_init_with_type(obj, type);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600519}
520
Andreas Färber213f0c42013-08-23 19:37:12 +0200521void object_initialize(void *data, size_t size, const char *typename)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600522{
523 TypeImpl *type = type_get_by_name(typename);
524
Gerd Hoffmann64f7aec2020-09-14 15:42:22 +0200525#ifdef CONFIG_MODULES
526 if (!type) {
527 module_load_qom_one(typename);
528 type = type_get_by_name(typename);
529 }
530#endif
Philippe Mathieu-Daudée02bdf12019-04-27 15:56:42 +0200531 if (!type) {
532 error_report("missing object type '%s'", typename);
533 abort();
534 }
535
Andreas Färber5b9237f2013-08-30 18:28:37 +0200536 object_initialize_with_type(data, size, type);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600537}
538
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200539bool object_initialize_child_with_props(Object *parentobj,
540 const char *propname,
541 void *childobj, size_t size,
542 const char *type,
543 Error **errp, ...)
Thomas Huth0210b392018-07-16 14:59:18 +0200544{
545 va_list vargs;
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200546 bool ok;
Thomas Huth0210b392018-07-16 14:59:18 +0200547
548 va_start(vargs, errp);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200549 ok = object_initialize_child_with_propsv(parentobj, propname,
550 childobj, size, type, errp,
551 vargs);
Thomas Huth0210b392018-07-16 14:59:18 +0200552 va_end(vargs);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200553 return ok;
Thomas Huth0210b392018-07-16 14:59:18 +0200554}
555
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200556bool object_initialize_child_with_propsv(Object *parentobj,
557 const char *propname,
558 void *childobj, size_t size,
559 const char *type,
560 Error **errp, va_list vargs)
Thomas Huth0210b392018-07-16 14:59:18 +0200561{
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200562 bool ok = false;
Thomas Huth0210b392018-07-16 14:59:18 +0200563 Object *obj;
Marc-André Lureau3650b2d2018-12-04 18:20:07 +0400564 UserCreatable *uc;
Thomas Huth0210b392018-07-16 14:59:18 +0200565
566 object_initialize(childobj, size, type);
567 obj = OBJECT(childobj);
568
Markus Armbrusterb783f542020-07-07 18:05:58 +0200569 if (!object_set_propv(obj, errp, vargs)) {
Thomas Huth0210b392018-07-16 14:59:18 +0200570 goto out;
571 }
572
Markus Armbrusterd2623122020-05-05 17:29:22 +0200573 object_property_add_child(parentobj, propname, obj);
Thomas Huth0210b392018-07-16 14:59:18 +0200574
Marc-André Lureau3650b2d2018-12-04 18:20:07 +0400575 uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
576 if (uc) {
Markus Armbruster992861f2020-07-07 18:06:04 +0200577 if (!user_creatable_complete(uc, errp)) {
Thomas Huth0210b392018-07-16 14:59:18 +0200578 object_unparent(obj);
579 goto out;
580 }
581 }
582
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200583 ok = true;
584
Markus Armbruster975ac452020-05-05 17:29:09 +0200585out:
Thomas Huth0210b392018-07-16 14:59:18 +0200586 /*
Markus Armbruster975ac452020-05-05 17:29:09 +0200587 * We want @obj's reference to be 1 on success, 0 on failure.
588 * On success, it's 2: one taken by object_initialize(), and one
589 * by object_property_add_child().
590 * On failure in object_initialize() or earlier, it's 1.
591 * On failure afterwards, it's also 1: object_unparent() releases
592 * the reference taken by object_property_add_child().
Thomas Huth0210b392018-07-16 14:59:18 +0200593 */
594 object_unref(obj);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +0200595 return ok;
Thomas Huth0210b392018-07-16 14:59:18 +0200596}
597
Markus Armbruster9fc7fc42020-06-10 07:32:25 +0200598void object_initialize_child_internal(Object *parent,
599 const char *propname,
600 void *child, size_t size,
601 const char *type)
602{
603 object_initialize_child_with_props(parent, propname, child, size, type,
604 &error_abort, NULL);
605}
606
Andreas Färber5d9d3f42012-05-27 00:32:40 +0200607static inline bool object_property_is_child(ObjectProperty *prop)
608{
609 return strstart(prop->type, "child<", NULL);
610}
611
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600612static void object_property_del_all(Object *obj)
613{
Marc-André Lureau9859fac2020-01-10 19:30:30 +0400614 g_autoptr(GHashTable) done = g_hash_table_new(NULL, NULL);
Pavel Fedinb604a852015-10-13 13:37:45 +0100615 ObjectProperty *prop;
Marc-André Lureau9859fac2020-01-10 19:30:30 +0400616 ObjectPropertyIterator iter;
Pavel Fedinb604a852015-10-13 13:37:45 +0100617 bool released;
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600618
Pavel Fedinb604a852015-10-13 13:37:45 +0100619 do {
620 released = false;
Marc-André Lureau9859fac2020-01-10 19:30:30 +0400621 object_property_iter_init(&iter, obj);
622 while ((prop = object_property_iter_next(&iter)) != NULL) {
623 if (g_hash_table_add(done, prop)) {
624 if (prop->release) {
625 prop->release(obj, prop->name, prop->opaque);
626 released = true;
627 break;
628 }
Pavel Fedinb604a852015-10-13 13:37:45 +0100629 }
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600630 }
Pavel Fedinb604a852015-10-13 13:37:45 +0100631 } while (released);
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600632
Pavel Fedinb604a852015-10-13 13:37:45 +0100633 g_hash_table_unref(obj->properties);
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600634}
635
Markus Armbrusterf73a32a2020-05-05 17:29:11 +0200636static void object_property_del_child(Object *obj, Object *child)
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600637{
638 ObjectProperty *prop;
Pavel Fedinb604a852015-10-13 13:37:45 +0100639 GHashTableIter iter;
640 gpointer key, value;
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600641
Pavel Fedinb604a852015-10-13 13:37:45 +0100642 g_hash_table_iter_init(&iter, obj->properties);
643 while (g_hash_table_iter_next(&iter, &key, &value)) {
644 prop = value;
Andreas Färber5d9d3f42012-05-27 00:32:40 +0200645 if (object_property_is_child(prop) && prop->opaque == child) {
Pavel Fedinb604a852015-10-13 13:37:45 +0100646 if (prop->release) {
647 prop->release(obj, prop->name, prop->opaque);
648 prop->release = NULL;
649 }
650 break;
651 }
652 }
653 g_hash_table_iter_init(&iter, obj->properties);
654 while (g_hash_table_iter_next(&iter, &key, &value)) {
655 prop = value;
656 if (object_property_is_child(prop) && prop->opaque == child) {
657 g_hash_table_iter_remove(&iter);
Paolo Bonzini6c1fdcf2012-02-28 09:54:15 +0100658 break;
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600659 }
660 }
661}
662
663void object_unparent(Object *obj)
664{
Michael S. Tsirkine998fa82013-03-18 21:01:37 +0200665 if (obj->parent) {
Markus Armbrusterf73a32a2020-05-05 17:29:11 +0200666 object_property_del_child(obj->parent, obj);
Michael S. Tsirkine998fa82013-03-18 21:01:37 +0200667 }
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600668}
669
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600670static void object_deinit(Object *obj, TypeImpl *type)
671{
672 if (type->instance_finalize) {
673 type->instance_finalize(obj);
674 }
675
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600676 if (type_has_parent(type)) {
677 object_deinit(obj, type_get_parent(type));
678 }
679}
680
Paolo Bonzini339c2702012-11-23 09:47:16 +0100681static void object_finalize(void *data)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600682{
683 Object *obj = data;
684 TypeImpl *ti = obj->class->type;
685
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600686 object_property_del_all(obj);
Paolo Bonzini76a6e1c2014-06-11 11:58:30 +0200687 object_deinit(obj, ti);
Anthony Liguoridb85b572011-12-23 08:47:39 -0600688
Markus Armbruster719a3072018-06-08 19:02:31 +0200689 g_assert(obj->ref == 0);
Eduardo Habkost63f957a2020-12-15 17:41:33 -0500690 g_assert(obj->parent == NULL);
Paolo Bonzinifde9bf42012-11-23 09:47:14 +0100691 if (obj->free) {
692 obj->free(obj);
693 }
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600694}
695
Richard Henderson4c880f32020-09-15 17:46:34 -0700696/* Find the minimum alignment guaranteed by the system malloc. */
697#if __STDC_VERSION__ >= 201112L
Doug Evans3a2e9822021-02-12 00:56:30 +0000698typedef max_align_t qemu_max_align_t;
Richard Henderson4c880f32020-09-15 17:46:34 -0700699#else
700typedef union {
701 long l;
702 void *p;
703 double d;
704 long double ld;
705} qemu_max_align_t;
706#endif
707
Marc-André Lureau63f7b102016-12-12 20:31:51 +0300708static Object *object_new_with_type(Type type)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600709{
710 Object *obj;
Richard Henderson4c880f32020-09-15 17:46:34 -0700711 size_t size, align;
712 void (*obj_free)(void *);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600713
714 g_assert(type != NULL);
Igor Mitsyankoac451032012-02-28 15:57:11 +0400715 type_initialize(type);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600716
Richard Henderson4c880f32020-09-15 17:46:34 -0700717 size = type->instance_size;
718 align = type->instance_align;
719
720 /*
721 * Do not use qemu_memalign unless required. Depending on the
722 * implementation, extra alignment implies extra overhead.
723 */
724 if (likely(align <= __alignof__(qemu_max_align_t))) {
725 obj = g_malloc(size);
726 obj_free = g_free;
727 } else {
728 obj = qemu_memalign(align, size);
729 obj_free = qemu_vfree;
730 }
731
732 object_initialize_with_type(obj, size, type);
733 obj->free = obj_free;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600734
735 return obj;
736}
737
Paolo Bonzini3c75e122019-11-13 13:57:55 +0100738Object *object_new_with_class(ObjectClass *klass)
739{
740 return object_new_with_type(klass->type);
741}
742
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600743Object *object_new(const char *typename)
744{
745 TypeImpl *ti = type_get_by_name(typename);
746
747 return object_new_with_type(ti);
748}
749
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100750
751Object *object_new_with_props(const char *typename,
752 Object *parent,
753 const char *id,
754 Error **errp,
755 ...)
756{
757 va_list vargs;
758 Object *obj;
759
760 va_start(vargs, errp);
761 obj = object_new_with_propv(typename, parent, id, errp, vargs);
762 va_end(vargs);
763
764 return obj;
765}
766
767
768Object *object_new_with_propv(const char *typename,
769 Object *parent,
770 const char *id,
771 Error **errp,
772 va_list vargs)
773{
774 Object *obj;
775 ObjectClass *klass;
Marc-André Lureau3650b2d2018-12-04 18:20:07 +0400776 UserCreatable *uc;
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100777
778 klass = object_class_by_name(typename);
779 if (!klass) {
780 error_setg(errp, "invalid object type: %s", typename);
781 return NULL;
782 }
783
784 if (object_class_is_abstract(klass)) {
785 error_setg(errp, "object type '%s' is abstract", typename);
786 return NULL;
787 }
Wei Yang66e11552019-03-11 16:32:34 +0800788 obj = object_new_with_type(klass->type);
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100789
Markus Armbrusterb783f542020-07-07 18:05:58 +0200790 if (!object_set_propv(obj, errp, vargs)) {
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100791 goto error;
792 }
793
Daniel P. Berrangé6134d752018-06-15 16:39:35 +0100794 if (id != NULL) {
Markus Armbrusterd2623122020-05-05 17:29:22 +0200795 object_property_add_child(parent, id, obj);
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100796 }
797
Marc-André Lureau3650b2d2018-12-04 18:20:07 +0400798 uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
799 if (uc) {
Markus Armbruster992861f2020-07-07 18:06:04 +0200800 if (!user_creatable_complete(uc, errp)) {
Daniel P. Berrangé6134d752018-06-15 16:39:35 +0100801 if (id != NULL) {
802 object_unparent(obj);
803 }
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100804 goto error;
805 }
806 }
807
Philippe Mathieu-Daudé688ffbb2020-05-12 09:00:19 +0200808 object_unref(obj);
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100809 return obj;
810
811 error:
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100812 object_unref(obj);
813 return NULL;
814}
815
816
Markus Armbrusterb783f542020-07-07 18:05:58 +0200817bool object_set_props(Object *obj,
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100818 Error **errp,
819 ...)
820{
821 va_list vargs;
Markus Armbrusterb783f542020-07-07 18:05:58 +0200822 bool ret;
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100823
824 va_start(vargs, errp);
825 ret = object_set_propv(obj, errp, vargs);
826 va_end(vargs);
827
828 return ret;
829}
830
831
Markus Armbrusterb783f542020-07-07 18:05:58 +0200832bool object_set_propv(Object *obj,
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100833 Error **errp,
834 va_list vargs)
835{
836 const char *propname;
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100837
838 propname = va_arg(vargs, char *);
839 while (propname != NULL) {
840 const char *value = va_arg(vargs, char *);
841
842 g_assert(value != NULL);
Markus Armbruster668f62e2020-07-07 18:06:02 +0200843 if (!object_property_parse(obj, propname, value, errp)) {
Markus Armbrusterb783f542020-07-07 18:05:58 +0200844 return false;
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100845 }
846 propname = va_arg(vargs, char *);
847 }
848
Markus Armbrusterb783f542020-07-07 18:05:58 +0200849 return true;
Daniel P. Berrangea31bdae2015-05-13 17:14:06 +0100850}
851
852
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600853Object *object_dynamic_cast(Object *obj, const char *typename)
854{
Paolo Bonzinib7f43fe2012-11-23 16:56:17 +0100855 if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) {
Paolo Bonziniacc4af32012-02-03 11:57:23 +0100856 return obj;
857 }
858
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600859 return NULL;
860}
861
Paolo Bonzinibe17f182013-05-10 14:16:38 +0200862Object *object_dynamic_cast_assert(Object *obj, const char *typename,
863 const char *file, int line, const char *func)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600864{
Paolo Bonzinifa131d92013-05-10 14:16:39 +0200865 trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)",
866 typename, file, line, func);
867
Paolo Bonzini3556c232013-05-10 14:16:40 +0200868#ifdef CONFIG_QOM_CAST_DEBUG
Anthony Liguori03587322013-05-13 15:22:24 -0500869 int i;
870 Object *inst;
871
Peter Crosthwaite95916ab2013-05-22 11:19:16 +1000872 for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) {
Stefan Hajnoczid73415a2020-09-23 11:56:46 +0100873 if (qatomic_read(&obj->class->object_cast_cache[i]) == typename) {
Anthony Liguori03587322013-05-13 15:22:24 -0500874 goto out;
875 }
876 }
877
878 inst = object_dynamic_cast(obj, typename);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600879
Paolo Bonzinib7f43fe2012-11-23 16:56:17 +0100880 if (!inst && obj) {
Paolo Bonzinibe17f182013-05-10 14:16:38 +0200881 fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n",
882 file, line, func, obj, typename);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600883 abort();
884 }
885
Paolo Bonzini3556c232013-05-10 14:16:40 +0200886 assert(obj == inst);
Anthony Liguori03587322013-05-13 15:22:24 -0500887
Peter Crosthwaite95916ab2013-05-22 11:19:16 +1000888 if (obj && obj == inst) {
Anthony Liguori03587322013-05-13 15:22:24 -0500889 for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) {
Stefan Hajnoczid73415a2020-09-23 11:56:46 +0100890 qatomic_set(&obj->class->object_cast_cache[i - 1],
891 qatomic_read(&obj->class->object_cast_cache[i]));
Anthony Liguori03587322013-05-13 15:22:24 -0500892 }
Stefan Hajnoczid73415a2020-09-23 11:56:46 +0100893 qatomic_set(&obj->class->object_cast_cache[i - 1], typename);
Anthony Liguori03587322013-05-13 15:22:24 -0500894 }
895
896out:
Paolo Bonzini3556c232013-05-10 14:16:40 +0200897#endif
898 return obj;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600899}
900
901ObjectClass *object_class_dynamic_cast(ObjectClass *class,
902 const char *typename)
903{
Anthony Liguori33e95c62012-08-10 13:16:10 +1000904 ObjectClass *ret = NULL;
Paolo Bonzinibf0fda32013-05-10 14:16:36 +0200905 TypeImpl *target_type;
906 TypeImpl *type;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600907
Paolo Bonzinibf0fda32013-05-10 14:16:36 +0200908 if (!class) {
909 return NULL;
910 }
911
Paolo Bonzini793c96b2013-05-10 14:16:37 +0200912 /* A simple fast path that can trigger a lot for leaf classes. */
Paolo Bonzinibf0fda32013-05-10 14:16:36 +0200913 type = class->type;
Paolo Bonzini793c96b2013-05-10 14:16:37 +0200914 if (type->name == typename) {
915 return class;
916 }
917
Paolo Bonzinibf0fda32013-05-10 14:16:36 +0200918 target_type = type_get_by_name(typename);
Alexander Graf9ab880b2013-04-30 15:02:16 +0200919 if (!target_type) {
920 /* target class type unknown, so fail the cast */
921 return NULL;
922 }
923
Peter Crosthwaite00e2cea2013-02-19 14:02:10 +1000924 if (type->class->interfaces &&
925 type_is_ancestor(target_type, type_interface)) {
Anthony Liguori33e95c62012-08-10 13:16:10 +1000926 int found = 0;
927 GSList *i;
928
929 for (i = class->interfaces; i; i = i->next) {
930 ObjectClass *target_class = i->data;
931
932 if (type_is_ancestor(target_class->type, target_type)) {
933 ret = target_class;
934 found++;
935 }
936 }
937
938 /* The match was ambiguous, don't allow a cast */
939 if (found > 1) {
940 ret = NULL;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600941 }
Anthony Liguori33e95c62012-08-10 13:16:10 +1000942 } else if (type_is_ancestor(type, target_type)) {
943 ret = class;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600944 }
945
Anthony Liguori33e95c62012-08-10 13:16:10 +1000946 return ret;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600947}
948
949ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class,
Paolo Bonzinibe17f182013-05-10 14:16:38 +0200950 const char *typename,
951 const char *file, int line,
952 const char *func)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600953{
Paolo Bonzinifa131d92013-05-10 14:16:39 +0200954 ObjectClass *ret;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600955
Paolo Bonzinifa131d92013-05-10 14:16:39 +0200956 trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)",
957 typename, file, line, func);
958
Anthony Liguori03587322013-05-13 15:22:24 -0500959#ifdef CONFIG_QOM_CAST_DEBUG
960 int i;
961
Peter Crosthwaite9d6a3d52013-06-18 19:18:59 +1000962 for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) {
Stefan Hajnoczid73415a2020-09-23 11:56:46 +0100963 if (qatomic_read(&class->class_cast_cache[i]) == typename) {
Anthony Liguori03587322013-05-13 15:22:24 -0500964 ret = class;
965 goto out;
966 }
967 }
968#else
Peter Crosthwaite9d6a3d52013-06-18 19:18:59 +1000969 if (!class || !class->interfaces) {
Paolo Bonzini3556c232013-05-10 14:16:40 +0200970 return class;
971 }
972#endif
973
Paolo Bonzinifa131d92013-05-10 14:16:39 +0200974 ret = object_class_dynamic_cast(class, typename);
Paolo Bonzinibf0fda32013-05-10 14:16:36 +0200975 if (!ret && class) {
Paolo Bonzinibe17f182013-05-10 14:16:38 +0200976 fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n",
977 file, line, func, class, typename);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600978 abort();
979 }
980
Anthony Liguori03587322013-05-13 15:22:24 -0500981#ifdef CONFIG_QOM_CAST_DEBUG
Peter Crosthwaite9d6a3d52013-06-18 19:18:59 +1000982 if (class && ret == class) {
Anthony Liguori03587322013-05-13 15:22:24 -0500983 for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) {
Stefan Hajnoczid73415a2020-09-23 11:56:46 +0100984 qatomic_set(&class->class_cast_cache[i - 1],
985 qatomic_read(&class->class_cast_cache[i]));
Anthony Liguori03587322013-05-13 15:22:24 -0500986 }
Stefan Hajnoczid73415a2020-09-23 11:56:46 +0100987 qatomic_set(&class->class_cast_cache[i - 1], typename);
Anthony Liguori03587322013-05-13 15:22:24 -0500988 }
989out:
990#endif
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600991 return ret;
992}
993
Igor Mammedov8f5d58e2017-07-14 10:14:50 +0800994const char *object_get_typename(const Object *obj)
Anthony Liguori2f28d2f2011-12-03 17:10:08 -0600995{
996 return obj->class->type->name;
997}
998
999ObjectClass *object_get_class(Object *obj)
1000{
1001 return obj->class;
1002}
1003
Andreas Färber17862372013-01-23 12:20:18 +01001004bool object_class_is_abstract(ObjectClass *klass)
1005{
1006 return klass->type->abstract;
1007}
1008
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001009const char *object_class_get_name(ObjectClass *klass)
1010{
1011 return klass->type->name;
1012}
1013
1014ObjectClass *object_class_by_name(const char *typename)
1015{
1016 TypeImpl *type = type_get_by_name(typename);
1017
1018 if (!type) {
1019 return NULL;
1020 }
1021
Igor Mitsyankoac451032012-02-28 15:57:11 +04001022 type_initialize(type);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001023
1024 return type->class;
1025}
1026
Gerd Hoffmann0f8198f2020-06-24 15:10:37 +02001027ObjectClass *module_object_class_by_name(const char *typename)
1028{
1029 ObjectClass *oc;
1030
1031 oc = object_class_by_name(typename);
1032#ifdef CONFIG_MODULES
1033 if (!oc) {
1034 module_load_qom_one(typename);
1035 oc = object_class_by_name(typename);
1036 }
1037#endif
1038 return oc;
1039}
1040
Paolo Bonzinie7cce672012-05-02 13:30:54 +02001041ObjectClass *object_class_get_parent(ObjectClass *class)
1042{
1043 TypeImpl *type = type_get_parent(class->type);
1044
1045 if (!type) {
1046 return NULL;
1047 }
1048
1049 type_initialize(type);
1050
1051 return type->class;
1052}
1053
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001054typedef struct OCFData
1055{
1056 void (*fn)(ObjectClass *klass, void *opaque);
Anthony Liguori93c511a2011-12-22 14:11:53 -06001057 const char *implements_type;
1058 bool include_abstract;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001059 void *opaque;
1060} OCFData;
1061
1062static void object_class_foreach_tramp(gpointer key, gpointer value,
1063 gpointer opaque)
1064{
1065 OCFData *data = opaque;
1066 TypeImpl *type = value;
Anthony Liguori93c511a2011-12-22 14:11:53 -06001067 ObjectClass *k;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001068
Igor Mitsyankoac451032012-02-28 15:57:11 +04001069 type_initialize(type);
Anthony Liguori93c511a2011-12-22 14:11:53 -06001070 k = type->class;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001071
Anthony Liguori93c511a2011-12-22 14:11:53 -06001072 if (!data->include_abstract && type->abstract) {
1073 return;
1074 }
1075
1076 if (data->implements_type &&
1077 !object_class_dynamic_cast(k, data->implements_type)) {
1078 return;
1079 }
1080
1081 data->fn(k, data->opaque);
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001082}
1083
1084void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque),
Anthony Liguori93c511a2011-12-22 14:11:53 -06001085 const char *implements_type, bool include_abstract,
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001086 void *opaque)
1087{
Anthony Liguori93c511a2011-12-22 14:11:53 -06001088 OCFData data = { fn, implements_type, include_abstract, opaque };
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001089
Hervé Poussineauf54c19c2013-12-03 16:42:00 +01001090 enumerating_types = true;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001091 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data);
Hervé Poussineauf54c19c2013-12-03 16:42:00 +01001092 enumerating_types = false;
Anthony Liguori2f28d2f2011-12-03 17:10:08 -06001093}
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001094
Peter Crosthwaited714b8d2015-09-08 17:38:43 +01001095static int do_object_child_foreach(Object *obj,
1096 int (*fn)(Object *child, void *opaque),
1097 void *opaque, bool recurse)
Paolo Bonzini32efc532012-04-11 23:30:20 +02001098{
Pavel Fedinb604a852015-10-13 13:37:45 +01001099 GHashTableIter iter;
1100 ObjectProperty *prop;
Paolo Bonzini32efc532012-04-11 23:30:20 +02001101 int ret = 0;
1102
Pavel Fedinb604a852015-10-13 13:37:45 +01001103 g_hash_table_iter_init(&iter, obj->properties);
1104 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
Paolo Bonzini32efc532012-04-11 23:30:20 +02001105 if (object_property_is_child(prop)) {
Peter Crosthwaited714b8d2015-09-08 17:38:43 +01001106 Object *child = prop->opaque;
1107
1108 ret = fn(child, opaque);
Paolo Bonzini32efc532012-04-11 23:30:20 +02001109 if (ret != 0) {
1110 break;
1111 }
Peter Crosthwaited714b8d2015-09-08 17:38:43 +01001112 if (recurse) {
Cédric Le Goater4a391812020-04-04 17:33:40 +02001113 ret = do_object_child_foreach(child, fn, opaque, true);
1114 if (ret != 0) {
1115 break;
1116 }
Peter Crosthwaited714b8d2015-09-08 17:38:43 +01001117 }
Paolo Bonzini32efc532012-04-11 23:30:20 +02001118 }
1119 }
1120 return ret;
1121}
1122
Peter Crosthwaited714b8d2015-09-08 17:38:43 +01001123int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque),
1124 void *opaque)
1125{
1126 return do_object_child_foreach(obj, fn, opaque, false);
1127}
1128
1129int object_child_foreach_recursive(Object *obj,
1130 int (*fn)(Object *child, void *opaque),
1131 void *opaque)
1132{
1133 return do_object_child_foreach(obj, fn, opaque, true);
1134}
1135
Andreas Färber418ba9e2012-02-25 23:07:34 +01001136static void object_class_get_list_tramp(ObjectClass *klass, void *opaque)
1137{
1138 GSList **list = opaque;
1139
1140 *list = g_slist_prepend(*list, klass);
1141}
1142
1143GSList *object_class_get_list(const char *implements_type,
1144 bool include_abstract)
1145{
1146 GSList *list = NULL;
1147
1148 object_class_foreach(object_class_get_list_tramp,
1149 implements_type, include_abstract, &list);
1150 return list;
1151}
1152
Paolo Bonzini47c66002018-03-03 08:33:10 +01001153static gint object_class_cmp(gconstpointer a, gconstpointer b)
1154{
1155 return strcasecmp(object_class_get_name((ObjectClass *)a),
1156 object_class_get_name((ObjectClass *)b));
1157}
1158
1159GSList *object_class_get_list_sorted(const char *implements_type,
1160 bool include_abstract)
1161{
1162 return g_slist_sort(object_class_get_list(implements_type, include_abstract),
1163 object_class_cmp);
1164}
1165
Daniel P. Berrangéc5a61e52020-08-31 17:07:23 -04001166Object *object_ref(void *objptr)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001167{
Daniel P. Berrangéc5a61e52020-08-31 17:07:23 -04001168 Object *obj = OBJECT(objptr);
Peter Crosthwaite8ffad852014-06-05 23:13:36 -07001169 if (!obj) {
Marc-André Lureaub77ade92020-01-10 19:30:31 +04001170 return NULL;
Peter Crosthwaite8ffad852014-06-05 23:13:36 -07001171 }
Stefan Hajnoczid73415a2020-09-23 11:56:46 +01001172 qatomic_inc(&obj->ref);
Marc-André Lureaub77ade92020-01-10 19:30:31 +04001173 return obj;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001174}
1175
Daniel P. Berrangéc5a61e52020-08-31 17:07:23 -04001176void object_unref(void *objptr)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001177{
Daniel P. Berrangéc5a61e52020-08-31 17:07:23 -04001178 Object *obj = OBJECT(objptr);
Peter Crosthwaite8ffad852014-06-05 23:13:36 -07001179 if (!obj) {
1180 return;
1181 }
Markus Armbruster719a3072018-06-08 19:02:31 +02001182 g_assert(obj->ref > 0);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001183
1184 /* parent always holds a reference to its children */
Stefan Hajnoczid73415a2020-09-23 11:56:46 +01001185 if (qatomic_fetch_dec(&obj->ref) == 1) {
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001186 object_finalize(obj);
1187 }
1188}
1189
Eric Augerdb57fef2020-06-29 21:34:22 +02001190ObjectProperty *
Markus Armbrusterd2623122020-05-05 17:29:22 +02001191object_property_try_add(Object *obj, const char *name, const char *type,
1192 ObjectPropertyAccessor *get,
1193 ObjectPropertyAccessor *set,
1194 ObjectPropertyRelease *release,
1195 void *opaque, Error **errp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001196{
Peter Maydell54852b02013-03-25 13:15:13 +00001197 ObjectProperty *prop;
Peter Crosthwaite33965902014-08-19 23:55:52 -07001198 size_t name_len = strlen(name);
1199
1200 if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) {
1201 int i;
Ani Sinha1bf8b882020-09-21 15:03:25 +05301202 ObjectProperty *ret = NULL;
Peter Crosthwaite33965902014-08-19 23:55:52 -07001203 char *name_no_array = g_strdup(name);
1204
1205 name_no_array[name_len - 3] = '\0';
Ani Sinha1bf8b882020-09-21 15:03:25 +05301206 for (i = 0; i < INT16_MAX; ++i) {
Peter Crosthwaite33965902014-08-19 23:55:52 -07001207 char *full_name = g_strdup_printf("%s[%d]", name_no_array, i);
1208
Markus Armbrusterd2623122020-05-05 17:29:22 +02001209 ret = object_property_try_add(obj, full_name, type, get, set,
1210 release, opaque, NULL);
Peter Crosthwaite33965902014-08-19 23:55:52 -07001211 g_free(full_name);
1212 if (ret) {
1213 break;
1214 }
1215 }
1216 g_free(name_no_array);
Ani Sinha1bf8b882020-09-21 15:03:25 +05301217 assert(ret);
Peter Crosthwaite33965902014-08-19 23:55:52 -07001218 return ret;
1219 }
Peter Maydell54852b02013-03-25 13:15:13 +00001220
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001221 if (object_property_find(obj, name) != NULL) {
Greg Kurzd55e9372019-11-04 14:23:55 +01001222 error_setg(errp, "attempt to add duplicate property '%s' to object (type '%s')",
1223 name, object_get_typename(obj));
Pavel Fedinb604a852015-10-13 13:37:45 +01001224 return NULL;
Peter Maydell54852b02013-03-25 13:15:13 +00001225 }
1226
1227 prop = g_malloc0(sizeof(*prop));
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001228
1229 prop->name = g_strdup(name);
1230 prop->type = g_strdup(type);
1231
1232 prop->get = get;
1233 prop->set = set;
1234 prop->release = release;
1235 prop->opaque = opaque;
1236
Pavel Fedinb604a852015-10-13 13:37:45 +01001237 g_hash_table_insert(obj->properties, prop->name, prop);
Paolo Bonzini64607d02014-06-05 13:11:51 +02001238 return prop;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001239}
1240
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001241ObjectProperty *
Markus Armbrusterd2623122020-05-05 17:29:22 +02001242object_property_add(Object *obj, const char *name, const char *type,
1243 ObjectPropertyAccessor *get,
1244 ObjectPropertyAccessor *set,
1245 ObjectPropertyRelease *release,
1246 void *opaque)
1247{
1248 return object_property_try_add(obj, name, type, get, set, release,
1249 opaque, &error_abort);
1250}
1251
1252ObjectProperty *
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001253object_class_property_add(ObjectClass *klass,
1254 const char *name,
1255 const char *type,
1256 ObjectPropertyAccessor *get,
1257 ObjectPropertyAccessor *set,
1258 ObjectPropertyRelease *release,
Markus Armbrusterd2623122020-05-05 17:29:22 +02001259 void *opaque)
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001260{
1261 ObjectProperty *prop;
1262
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001263 assert(!object_class_property_find(klass, name));
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001264
1265 prop = g_malloc0(sizeof(*prop));
1266
1267 prop->name = g_strdup(name);
1268 prop->type = g_strdup(type);
1269
1270 prop->get = get;
1271 prop->set = set;
1272 prop->release = release;
1273 prop->opaque = opaque;
1274
Marc-André Lureauba806ff2020-01-10 19:30:18 +04001275 g_hash_table_insert(klass->properties, prop->name, prop);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001276
1277 return prop;
1278}
1279
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001280ObjectProperty *object_property_find(Object *obj, const char *name)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001281{
1282 ObjectProperty *prop;
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001283 ObjectClass *klass = object_get_class(obj);
1284
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001285 prop = object_class_property_find(klass, name);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001286 if (prop) {
1287 return prop;
1288 }
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001289
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001290 return g_hash_table_lookup(obj->properties, name);
1291}
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001292
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001293ObjectProperty *object_property_find_err(Object *obj, const char *name,
1294 Error **errp)
1295{
1296 ObjectProperty *prop = object_property_find(obj, name);
1297 if (!prop) {
Philippe Mathieu-Daudé4d9c7c82020-09-20 17:53:40 +02001298 error_setg(errp, "Property '%s.%s' not found",
1299 object_get_typename(obj), name);
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001300 }
1301 return prop;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001302}
1303
Daniel P. Berrange7746abd2015-12-09 12:34:02 +00001304void object_property_iter_init(ObjectPropertyIterator *iter,
1305 Object *obj)
Daniel P. Berrangea00c9482015-10-13 13:37:40 +01001306{
Daniel P. Berrange7746abd2015-12-09 12:34:02 +00001307 g_hash_table_iter_init(&iter->iter, obj->properties);
1308 iter->nextclass = object_get_class(obj);
Daniel P. Berrangea00c9482015-10-13 13:37:40 +01001309}
1310
1311ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter)
1312{
Pavel Fedinb604a852015-10-13 13:37:45 +01001313 gpointer key, val;
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001314 while (!g_hash_table_iter_next(&iter->iter, &key, &val)) {
1315 if (!iter->nextclass) {
1316 return NULL;
1317 }
1318 g_hash_table_iter_init(&iter->iter, iter->nextclass->properties);
1319 iter->nextclass = object_class_get_parent(iter->nextclass);
Daniel P. Berrangea00c9482015-10-13 13:37:40 +01001320 }
Pavel Fedinb604a852015-10-13 13:37:45 +01001321 return val;
Daniel P. Berrangea00c9482015-10-13 13:37:40 +01001322}
1323
Alexey Kardashevskiy961c47b2018-03-02 00:09:39 +11001324void object_class_property_iter_init(ObjectPropertyIterator *iter,
1325 ObjectClass *klass)
1326{
1327 g_hash_table_iter_init(&iter->iter, klass->properties);
Marc-André Lureau684546d2018-09-06 17:37:36 +04001328 iter->nextclass = object_class_get_parent(klass);
Alexey Kardashevskiy961c47b2018-03-02 00:09:39 +11001329}
1330
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001331ObjectProperty *object_class_property_find(ObjectClass *klass, const char *name)
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001332{
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001333 ObjectClass *parent_klass;
1334
1335 parent_klass = object_class_get_parent(klass);
1336 if (parent_klass) {
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001337 ObjectProperty *prop =
1338 object_class_property_find(parent_klass, name);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001339 if (prop) {
1340 return prop;
1341 }
1342 }
1343
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001344 return g_hash_table_lookup(klass->properties, name);
1345}
1346
1347ObjectProperty *object_class_property_find_err(ObjectClass *klass,
1348 const char *name,
1349 Error **errp)
1350{
1351 ObjectProperty *prop = object_class_property_find(klass, name);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01001352 if (!prop) {
1353 error_setg(errp, "Property '.%s' not found", name);
1354 }
1355 return prop;
1356}
1357
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001358
Markus Armbrusterdf4fe0b2020-05-05 17:29:26 +02001359void object_property_del(Object *obj, const char *name)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001360{
Pavel Fedinb604a852015-10-13 13:37:45 +01001361 ObjectProperty *prop = g_hash_table_lookup(obj->properties, name);
1362
Anthony Liguori0866aca2011-12-23 15:34:39 -06001363 if (prop->release) {
1364 prop->release(obj, name, prop->opaque);
1365 }
Pavel Fedinb604a852015-10-13 13:37:45 +01001366 g_hash_table_remove(obj->properties, name);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001367}
1368
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001369bool object_property_get(Object *obj, const char *name, Visitor *v,
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001370 Error **errp)
1371{
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001372 Error *err = NULL;
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001373 ObjectProperty *prop = object_property_find_err(obj, name, errp);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001374
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001375 if (prop == NULL) {
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001376 return false;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001377 }
1378
1379 if (!prop->get) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +01001380 error_setg(errp, QERR_PERMISSION_DENIED);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001381 return false;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001382 }
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001383 prop->get(obj, v, name, prop->opaque, &err);
1384 error_propagate(errp, err);
1385 return !err;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001386}
1387
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001388bool object_property_set(Object *obj, const char *name, Visitor *v,
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001389 Error **errp)
1390{
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001391 Error *err = NULL;
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001392 ObjectProperty *prop = object_property_find_err(obj, name, errp);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001393
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001394 if (prop == NULL) {
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001395 return false;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001396 }
1397
1398 if (!prop->set) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +01001399 error_setg(errp, QERR_PERMISSION_DENIED);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001400 return false;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001401 }
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001402 prop->set(obj, v, name, prop->opaque, &err);
1403 error_propagate(errp, err);
1404 return !err;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001405}
1406
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001407bool object_property_set_str(Object *obj, const char *name,
Markus Armbruster5325cc32020-07-07 18:05:54 +02001408 const char *value, Error **errp)
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001409{
1410 QString *qstr = qstring_from_str(value);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001411 bool ok = object_property_set_qobject(obj, name, QOBJECT(qstr), errp);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001412
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001413 qobject_unref(qstr);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001414 return ok;
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001415}
1416
1417char *object_property_get_str(Object *obj, const char *name,
1418 Error **errp)
1419{
1420 QObject *ret = object_property_get_qobject(obj, name, errp);
Markus Armbruster26c52822020-12-11 18:11:43 +01001421 QString *qstring;
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001422 char *retval;
1423
1424 if (!ret) {
1425 return NULL;
1426 }
Markus Armbruster26c52822020-12-11 18:11:43 +01001427 qstring = qobject_to(QString, ret);
1428 if (!qstring) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +01001429 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string");
Markus Armbruster26c52822020-12-11 18:11:43 +01001430 retval = NULL;
1431 } else {
1432 retval = g_strdup(qstring_get_str(qstring));
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001433 }
1434
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001435 qobject_unref(ret);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001436 return retval;
1437}
1438
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001439bool object_property_set_link(Object *obj, const char *name,
Markus Armbruster5325cc32020-07-07 18:05:54 +02001440 Object *value, Error **errp)
Paolo Bonzini1d9c5a12012-02-02 10:51:57 +01001441{
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001442 g_autofree char *path = NULL;
1443
Peter Crosthwaited3c49312014-09-25 22:19:19 -07001444 if (value) {
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001445 path = object_get_canonical_path(value);
Peter Crosthwaited3c49312014-09-25 22:19:19 -07001446 }
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001447 return object_property_set_str(obj, name, path ?: "", errp);
Paolo Bonzini1d9c5a12012-02-02 10:51:57 +01001448}
1449
1450Object *object_property_get_link(Object *obj, const char *name,
1451 Error **errp)
1452{
1453 char *str = object_property_get_str(obj, name, errp);
1454 Object *target = NULL;
1455
1456 if (str && *str) {
1457 target = object_resolve_path(str, NULL);
1458 if (!target) {
Markus Armbruster75158eb2015-03-16 08:57:47 +01001459 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1460 "Device '%s' not found", str);
Paolo Bonzini1d9c5a12012-02-02 10:51:57 +01001461 }
1462 }
1463
1464 g_free(str);
1465 return target;
1466}
1467
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001468bool object_property_set_bool(Object *obj, const char *name,
Markus Armbruster5325cc32020-07-07 18:05:54 +02001469 bool value, Error **errp)
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001470{
Eric Blakefc48ffc2015-05-15 16:24:59 -06001471 QBool *qbool = qbool_from_bool(value);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001472 bool ok = object_property_set_qobject(obj, name, QOBJECT(qbool), errp);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001473
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001474 qobject_unref(qbool);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001475 return ok;
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001476}
1477
1478bool object_property_get_bool(Object *obj, const char *name,
1479 Error **errp)
1480{
1481 QObject *ret = object_property_get_qobject(obj, name, errp);
1482 QBool *qbool;
1483 bool retval;
1484
1485 if (!ret) {
1486 return false;
1487 }
Max Reitz7dc847e2018-02-24 16:40:29 +01001488 qbool = qobject_to(QBool, ret);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001489 if (!qbool) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +01001490 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean");
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001491 retval = false;
1492 } else {
Eric Blakefc48ffc2015-05-15 16:24:59 -06001493 retval = qbool_get_bool(qbool);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001494 }
1495
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001496 qobject_unref(ret);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001497 return retval;
1498}
1499
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001500bool object_property_set_int(Object *obj, const char *name,
Markus Armbruster5325cc32020-07-07 18:05:54 +02001501 int64_t value, Error **errp)
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001502{
Marc-André Lureau01b2ffc2017-06-07 20:35:58 +04001503 QNum *qnum = qnum_from_int(value);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001504 bool ok = object_property_set_qobject(obj, name, QOBJECT(qnum), errp);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001505
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001506 qobject_unref(qnum);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001507 return ok;
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001508}
1509
1510int64_t object_property_get_int(Object *obj, const char *name,
1511 Error **errp)
1512{
1513 QObject *ret = object_property_get_qobject(obj, name, errp);
Marc-André Lureau01b2ffc2017-06-07 20:35:58 +04001514 QNum *qnum;
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001515 int64_t retval;
1516
1517 if (!ret) {
1518 return -1;
1519 }
Marc-André Lureau01b2ffc2017-06-07 20:35:58 +04001520
Max Reitz7dc847e2018-02-24 16:40:29 +01001521 qnum = qobject_to(QNum, ret);
Marc-André Lureau01b2ffc2017-06-07 20:35:58 +04001522 if (!qnum || !qnum_get_try_int(qnum, &retval)) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +01001523 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int");
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001524 retval = -1;
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001525 }
1526
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001527 qobject_unref(ret);
Paolo Bonzini7b7b7d12012-02-01 17:16:22 +01001528 return retval;
1529}
1530
Marc-André Lureau0e76ed02020-01-10 19:30:23 +04001531static void object_property_init_defval(Object *obj, ObjectProperty *prop)
1532{
1533 Visitor *v = qobject_input_visitor_new(prop->defval);
1534
1535 assert(prop->set != NULL);
1536 prop->set(obj, v, prop->name, prop->opaque, &error_abort);
1537
1538 visit_free(v);
1539}
1540
1541static void object_property_set_default(ObjectProperty *prop, QObject *defval)
1542{
1543 assert(!prop->defval);
1544 assert(!prop->init);
1545
1546 prop->defval = defval;
1547 prop->init = object_property_init_defval;
1548}
1549
1550void object_property_set_default_bool(ObjectProperty *prop, bool value)
1551{
1552 object_property_set_default(prop, QOBJECT(qbool_from_bool(value)));
1553}
1554
1555void object_property_set_default_str(ObjectProperty *prop, const char *value)
1556{
1557 object_property_set_default(prop, QOBJECT(qstring_from_str(value)));
1558}
1559
1560void object_property_set_default_int(ObjectProperty *prop, int64_t value)
1561{
1562 object_property_set_default(prop, QOBJECT(qnum_from_int(value)));
1563}
1564
1565void object_property_set_default_uint(ObjectProperty *prop, uint64_t value)
1566{
1567 object_property_set_default(prop, QOBJECT(qnum_from_uint(value)));
1568}
1569
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001570bool object_property_set_uint(Object *obj, const char *name,
Markus Armbruster5325cc32020-07-07 18:05:54 +02001571 uint64_t value, Error **errp)
Marc-André Lureau31527792017-06-07 20:36:04 +04001572{
1573 QNum *qnum = qnum_from_uint(value);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001574 bool ok = object_property_set_qobject(obj, name, QOBJECT(qnum), errp);
Marc-André Lureau31527792017-06-07 20:36:04 +04001575
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001576 qobject_unref(qnum);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001577 return ok;
Marc-André Lureau31527792017-06-07 20:36:04 +04001578}
1579
1580uint64_t object_property_get_uint(Object *obj, const char *name,
1581 Error **errp)
1582{
1583 QObject *ret = object_property_get_qobject(obj, name, errp);
1584 QNum *qnum;
1585 uint64_t retval;
1586
1587 if (!ret) {
1588 return 0;
1589 }
Max Reitz7dc847e2018-02-24 16:40:29 +01001590 qnum = qobject_to(QNum, ret);
Marc-André Lureau31527792017-06-07 20:36:04 +04001591 if (!qnum || !qnum_get_try_uint(qnum, &retval)) {
1592 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "uint");
1593 retval = 0;
1594 }
1595
Marc-André Lureaucb3e7f02018-04-19 17:01:43 +02001596 qobject_unref(ret);
Marc-André Lureau31527792017-06-07 20:36:04 +04001597 return retval;
1598}
1599
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01001600typedef struct EnumProperty {
Marc-André Lureauf7abe0e2017-08-24 10:46:10 +02001601 const QEnumLookup *lookup;
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01001602 int (*get)(Object *, Error **);
1603 void (*set)(Object *, int, Error **);
1604} EnumProperty;
1605
Hu Tao1f217722014-05-14 17:43:33 +08001606int object_property_get_enum(Object *obj, const char *name,
Daniel P. Berrangea3590da2015-05-27 16:07:56 +01001607 const char *typename, Error **errp)
Hu Tao1f217722014-05-14 17:43:33 +08001608{
Chen Fan976620a2014-08-18 14:46:34 +08001609 char *str;
Hu Tao1f217722014-05-14 17:43:33 +08001610 int ret;
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001611 ObjectProperty *prop = object_property_find_err(obj, name, errp);
Daniel P. Berrangea3590da2015-05-27 16:07:56 +01001612 EnumProperty *enumprop;
1613
1614 if (prop == NULL) {
Markus Armbrusterd20f6162020-09-17 14:55:39 +02001615 return -1;
Daniel P. Berrangea3590da2015-05-27 16:07:56 +01001616 }
1617
1618 if (!g_str_equal(prop->type, typename)) {
1619 error_setg(errp, "Property %s on %s is not '%s' enum type",
1620 name, object_class_get_name(
1621 object_get_class(obj)), typename);
Markus Armbrusterd20f6162020-09-17 14:55:39 +02001622 return -1;
Daniel P. Berrangea3590da2015-05-27 16:07:56 +01001623 }
1624
1625 enumprop = prop->opaque;
Hu Tao1f217722014-05-14 17:43:33 +08001626
Markus Armbrusterb555f892020-05-05 17:29:12 +02001627 str = object_property_get_str(obj, name, errp);
1628 if (!str) {
Markus Armbrusterd20f6162020-09-17 14:55:39 +02001629 return -1;
Markus Armbruster4715d422015-08-25 20:00:45 +02001630 }
Chen Fan976620a2014-08-18 14:46:34 +08001631
Markus Armbrusterea097df2020-04-24 10:43:36 +02001632 ret = qapi_enum_parse(enumprop->lookup, str, -1, errp);
Chen Fan976620a2014-08-18 14:46:34 +08001633 g_free(str);
Hu Tao1f217722014-05-14 17:43:33 +08001634
1635 return ret;
1636}
1637
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001638bool object_property_parse(Object *obj, const char *name,
Markus Armbruster5325cc32020-07-07 18:05:54 +02001639 const char *string, Error **errp)
Paolo Bonzinib2cd7de2012-02-09 09:52:59 +01001640{
Eric Blake7a0525c2016-06-09 10:48:37 -06001641 Visitor *v = string_input_visitor_new(string);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001642 bool ok = object_property_set(obj, name, v, errp);
1643
Eric Blake7a0525c2016-06-09 10:48:37 -06001644 visit_free(v);
Markus Armbruster6fd5bef2020-07-07 18:05:55 +02001645 return ok;
Paolo Bonzinib2cd7de2012-02-09 09:52:59 +01001646}
1647
Paolo Bonzini0b7593e2014-02-08 11:01:50 +01001648char *object_property_print(Object *obj, const char *name, bool human,
Paolo Bonzinib2cd7de2012-02-09 09:52:59 +01001649 Error **errp)
1650{
Eric Blake3b098d52016-06-09 10:48:43 -06001651 Visitor *v;
Gonglei3a530092014-09-27 13:13:55 +08001652 char *string = NULL;
Paolo Bonzinib2cd7de2012-02-09 09:52:59 +01001653
Eric Blake3b098d52016-06-09 10:48:43 -06001654 v = string_output_visitor_new(human, &string);
Markus Armbrusteraf175e82020-07-07 18:06:03 +02001655 if (!object_property_get(obj, name, v, errp)) {
Gonglei3a530092014-09-27 13:13:55 +08001656 goto out;
1657 }
1658
Eric Blake3b098d52016-06-09 10:48:43 -06001659 visit_complete(v, &string);
Gonglei3a530092014-09-27 13:13:55 +08001660
1661out:
Eric Blake3b098d52016-06-09 10:48:43 -06001662 visit_free(v);
Paolo Bonzinib2cd7de2012-02-09 09:52:59 +01001663 return string;
1664}
1665
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001666const char *object_property_get_type(Object *obj, const char *name, Error **errp)
1667{
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01001668 ObjectProperty *prop = object_property_find_err(obj, name, errp);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001669 if (prop == NULL) {
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001670 return NULL;
1671 }
1672
1673 return prop->type;
1674}
1675
1676Object *object_get_root(void)
1677{
Anthony Liguori8b45d442011-12-23 09:08:05 -06001678 static Object *root;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001679
Anthony Liguori8b45d442011-12-23 09:08:05 -06001680 if (!root) {
1681 root = object_new("container");
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001682 }
1683
Anthony Liguori8b45d442011-12-23 09:08:05 -06001684 return root;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001685}
1686
Daniel P. Berrangebc2256c2015-05-13 17:14:05 +01001687Object *object_get_objects_root(void)
1688{
1689 return container_get(object_get_root(), "/objects");
1690}
1691
Peter Xu7c47c4e2017-09-28 10:59:54 +08001692Object *object_get_internal_root(void)
1693{
1694 static Object *internal_root;
1695
1696 if (!internal_root) {
1697 internal_root = object_new("container");
1698 }
1699
1700 return internal_root;
1701}
1702
Eric Blaked7bce992016-01-29 06:48:55 -07001703static void object_get_child_property(Object *obj, Visitor *v,
1704 const char *name, void *opaque,
1705 Error **errp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001706{
1707 Object *child = opaque;
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02001708 char *path;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001709
1710 path = object_get_canonical_path(child);
Eric Blake51e72bc2016-01-29 06:48:54 -07001711 visit_type_str(v, name, &path, errp);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001712 g_free(path);
1713}
1714
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02001715static Object *object_resolve_child_property(Object *parent, void *opaque,
1716 const char *part)
Paolo Bonzini64607d02014-06-05 13:11:51 +02001717{
1718 return opaque;
1719}
1720
Anthony Liguoridb85b572011-12-23 08:47:39 -06001721static void object_finalize_child_property(Object *obj, const char *name,
1722 void *opaque)
1723{
1724 Object *child = opaque;
1725
Paolo Bonzinibffc6872014-06-11 11:57:38 +02001726 if (child->class->unparent) {
1727 (child->class->unparent)(child);
1728 }
1729 child->parent = NULL;
Anthony Liguoridb85b572011-12-23 08:47:39 -06001730 object_unref(child);
1731}
1732
Markus Armbruster70251882020-05-05 17:29:14 +02001733ObjectProperty *
Eric Augerdb57fef2020-06-29 21:34:22 +02001734object_property_try_add_child(Object *obj, const char *name,
1735 Object *child, Error **errp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001736{
Markus Armbruster70251882020-05-05 17:29:14 +02001737 g_autofree char *type = NULL;
Paolo Bonzini64607d02014-06-05 13:11:51 +02001738 ObjectProperty *op;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001739
Markus Armbrusterd2623122020-05-05 17:29:22 +02001740 assert(!child->parent);
Peter Crosthwaite8faa2f82014-09-25 22:19:52 -07001741
Philippe Mathieu-Daudé688ffbb2020-05-12 09:00:19 +02001742 type = g_strdup_printf("child<%s>", object_get_typename(child));
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001743
Eric Augerdb57fef2020-06-29 21:34:22 +02001744 op = object_property_try_add(obj, name, type, object_get_child_property,
1745 NULL, object_finalize_child_property,
1746 child, errp);
1747 if (!op) {
1748 return NULL;
1749 }
Paolo Bonzini64607d02014-06-05 13:11:51 +02001750 op->resolve = object_resolve_child_property;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001751 object_ref(child);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001752 child->parent = obj;
Markus Armbruster70251882020-05-05 17:29:14 +02001753 return op;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001754}
1755
Eric Augerdb57fef2020-06-29 21:34:22 +02001756ObjectProperty *
1757object_property_add_child(Object *obj, const char *name,
1758 Object *child)
1759{
1760 return object_property_try_add_child(obj, name, child, &error_abort);
1761}
1762
Igor Mammedov8f5d58e2017-07-14 10:14:50 +08001763void object_property_allow_set_link(const Object *obj, const char *name,
Stefan Hajnoczi39f72ef2014-03-19 08:58:56 +01001764 Object *val, Error **errp)
1765{
1766 /* Allow the link to be set, always */
1767}
1768
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001769typedef struct {
Marc-André Lureau9941d372020-01-10 19:30:27 +04001770 union {
1771 Object **targetp;
1772 Object *target; /* if OBJ_PROP_LINK_DIRECT, when holding the pointer */
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001773 ptrdiff_t offset; /* if OBJ_PROP_LINK_CLASS */
Marc-André Lureau9941d372020-01-10 19:30:27 +04001774 };
Igor Mammedov8f5d58e2017-07-14 10:14:50 +08001775 void (*check)(const Object *, const char *, Object *, Error **);
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001776 ObjectPropertyLinkFlags flags;
1777} LinkProperty;
1778
Marc-André Lureau9941d372020-01-10 19:30:27 +04001779static Object **
1780object_link_get_targetp(Object *obj, LinkProperty *lprop)
1781{
1782 if (lprop->flags & OBJ_PROP_LINK_DIRECT) {
1783 return &lprop->target;
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001784 } else if (lprop->flags & OBJ_PROP_LINK_CLASS) {
1785 return (void *)obj + lprop->offset;
Marc-André Lureau9941d372020-01-10 19:30:27 +04001786 } else {
1787 return lprop->targetp;
1788 }
1789}
1790
Eric Blaked7bce992016-01-29 06:48:55 -07001791static void object_get_link_property(Object *obj, Visitor *v,
1792 const char *name, void *opaque,
1793 Error **errp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001794{
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001795 LinkProperty *lprop = opaque;
Marc-André Lureau9941d372020-01-10 19:30:27 +04001796 Object **targetp = object_link_get_targetp(obj, lprop);
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02001797 char *path;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001798
Marc-André Lureau36854202020-01-10 19:30:26 +04001799 if (*targetp) {
1800 path = object_get_canonical_path(*targetp);
Eric Blake51e72bc2016-01-29 06:48:54 -07001801 visit_type_str(v, name, &path, errp);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001802 g_free(path);
1803 } else {
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02001804 path = (char *)"";
Eric Blake51e72bc2016-01-29 06:48:54 -07001805 visit_type_str(v, name, &path, errp);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001806 }
1807}
1808
Stefan Hajnoczif5ec6702014-03-19 08:58:53 +01001809/*
1810 * object_resolve_link:
1811 *
1812 * Lookup an object and ensure its type matches the link property type. This
1813 * is similar to object_resolve_path() except type verification against the
1814 * link property is performed.
1815 *
1816 * Returns: The matched object or NULL on path lookup failures.
1817 */
1818static Object *object_resolve_link(Object *obj, const char *name,
1819 const char *path, Error **errp)
1820{
1821 const char *type;
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02001822 char *target_type;
Stefan Hajnoczif5ec6702014-03-19 08:58:53 +01001823 bool ambiguous = false;
1824 Object *target;
1825
1826 /* Go from link<FOO> to FOO. */
1827 type = object_property_get_type(obj, name, NULL);
1828 target_type = g_strndup(&type[5], strlen(type) - 6);
1829 target = object_resolve_path_type(path, target_type, &ambiguous);
1830
1831 if (ambiguous) {
Eric Blake455b0fd2015-11-10 23:51:20 -07001832 error_setg(errp, "Path '%s' does not uniquely identify an object",
1833 path);
Stefan Hajnoczif5ec6702014-03-19 08:58:53 +01001834 } else if (!target) {
1835 target = object_resolve_path(path, &ambiguous);
1836 if (target || ambiguous) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +01001837 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type);
Stefan Hajnoczif5ec6702014-03-19 08:58:53 +01001838 } else {
Markus Armbruster75158eb2015-03-16 08:57:47 +01001839 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1840 "Device '%s' not found", path);
Stefan Hajnoczif5ec6702014-03-19 08:58:53 +01001841 }
1842 target = NULL;
1843 }
1844 g_free(target_type);
1845
1846 return target;
1847}
1848
Eric Blaked7bce992016-01-29 06:48:55 -07001849static void object_set_link_property(Object *obj, Visitor *v,
1850 const char *name, void *opaque,
1851 Error **errp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001852{
Stefan Hajnoczic6aed982014-03-19 08:58:54 +01001853 Error *local_err = NULL;
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001854 LinkProperty *prop = opaque;
Marc-André Lureau9941d372020-01-10 19:30:27 +04001855 Object **targetp = object_link_get_targetp(obj, prop);
Marc-André Lureau36854202020-01-10 19:30:26 +04001856 Object *old_target = *targetp;
Markus Armbruster1c94a352020-07-07 18:05:53 +02001857 Object *new_target;
Stefan Hajnoczic6aed982014-03-19 08:58:54 +01001858 char *path = NULL;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001859
Markus Armbruster1c94a352020-07-07 18:05:53 +02001860 if (!visit_type_str(v, name, &path, errp)) {
1861 return;
1862 }
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001863
Markus Armbruster1c94a352020-07-07 18:05:53 +02001864 if (*path) {
1865 new_target = object_resolve_link(obj, name, path, errp);
1866 if (!new_target) {
1867 g_free(path);
1868 return;
1869 }
1870 } else {
1871 new_target = NULL;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001872 }
1873
1874 g_free(path);
Alexander Barabashf0cdc962012-02-22 19:22:26 +02001875
Stefan Hajnoczi39f72ef2014-03-19 08:58:56 +01001876 prop->check(obj, name, new_target, &local_err);
1877 if (local_err) {
1878 error_propagate(errp, local_err);
1879 return;
1880 }
1881
Marc-André Lureau36854202020-01-10 19:30:26 +04001882 *targetp = new_target;
Marc-André Lureau8770baf2020-01-10 19:30:25 +04001883 if (prop->flags & OBJ_PROP_LINK_STRONG) {
Marc-André Lureau265b5782018-05-31 21:51:17 +02001884 object_ref(new_target);
1885 object_unref(old_target);
1886 }
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001887}
1888
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02001889static Object *object_resolve_link_property(Object *parent, void *opaque,
1890 const char *part)
Paolo Bonzini64607d02014-06-05 13:11:51 +02001891{
1892 LinkProperty *lprop = opaque;
1893
Marc-André Lureau9941d372020-01-10 19:30:27 +04001894 return *object_link_get_targetp(parent, lprop);
Paolo Bonzini64607d02014-06-05 13:11:51 +02001895}
1896
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001897static void object_release_link_property(Object *obj, const char *name,
1898 void *opaque)
1899{
1900 LinkProperty *prop = opaque;
Marc-André Lureau9941d372020-01-10 19:30:27 +04001901 Object **targetp = object_link_get_targetp(obj, prop);
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001902
Marc-André Lureau9941d372020-01-10 19:30:27 +04001903 if ((prop->flags & OBJ_PROP_LINK_STRONG) && *targetp) {
1904 object_unref(*targetp);
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001905 }
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001906 if (!(prop->flags & OBJ_PROP_LINK_CLASS)) {
1907 g_free(prop);
1908 }
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001909}
1910
Markus Armbruster70251882020-05-05 17:29:14 +02001911static ObjectProperty *
1912object_add_link_prop(Object *obj, const char *name,
1913 const char *type, void *ptr,
1914 void (*check)(const Object *, const char *,
1915 Object *, Error **),
Markus Armbrusterd2623122020-05-05 17:29:22 +02001916 ObjectPropertyLinkFlags flags)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001917{
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001918 LinkProperty *prop = g_malloc(sizeof(*prop));
Markus Armbruster70251882020-05-05 17:29:14 +02001919 g_autofree char *full_type = NULL;
Paolo Bonzini64607d02014-06-05 13:11:51 +02001920 ObjectProperty *op;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001921
Marc-André Lureau4a8d5792020-01-10 19:30:28 +04001922 if (flags & OBJ_PROP_LINK_DIRECT) {
1923 prop->target = ptr;
1924 } else {
1925 prop->targetp = ptr;
1926 }
Stefan Hajnoczi39f72ef2014-03-19 08:58:56 +01001927 prop->check = check;
Stefan Hajnoczi9561fda2014-03-19 08:58:55 +01001928 prop->flags = flags;
1929
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001930 full_type = g_strdup_printf("link<%s>", type);
1931
Paolo Bonzini64607d02014-06-05 13:11:51 +02001932 op = object_property_add(obj, name, full_type,
1933 object_get_link_property,
1934 check ? object_set_link_property : NULL,
1935 object_release_link_property,
Markus Armbrusterd2623122020-05-05 17:29:22 +02001936 prop);
Paolo Bonzini64607d02014-06-05 13:11:51 +02001937 op->resolve = object_resolve_link_property;
Markus Armbruster70251882020-05-05 17:29:14 +02001938 return op;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06001939}
1940
Markus Armbruster70251882020-05-05 17:29:14 +02001941ObjectProperty *
1942object_property_add_link(Object *obj, const char *name,
1943 const char *type, Object **targetp,
1944 void (*check)(const Object *, const char *,
1945 Object *, Error **),
Markus Armbrusterd2623122020-05-05 17:29:22 +02001946 ObjectPropertyLinkFlags flags)
Marc-André Lureau4a8d5792020-01-10 19:30:28 +04001947{
Markus Armbrusterd2623122020-05-05 17:29:22 +02001948 return object_add_link_prop(obj, name, type, targetp, check, flags);
Marc-André Lureau4a8d5792020-01-10 19:30:28 +04001949}
1950
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001951ObjectProperty *
1952object_class_property_add_link(ObjectClass *oc,
1953 const char *name,
1954 const char *type, ptrdiff_t offset,
1955 void (*check)(const Object *obj, const char *name,
1956 Object *val, Error **errp),
Markus Armbrusterd2623122020-05-05 17:29:22 +02001957 ObjectPropertyLinkFlags flags)
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001958{
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001959 LinkProperty *prop = g_new0(LinkProperty, 1);
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02001960 char *full_type;
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001961 ObjectProperty *op;
1962
1963 prop->offset = offset;
1964 prop->check = check;
1965 prop->flags = flags | OBJ_PROP_LINK_CLASS;
1966
1967 full_type = g_strdup_printf("link<%s>", type);
1968
1969 op = object_class_property_add(oc, name, full_type,
1970 object_get_link_property,
1971 check ? object_set_link_property : NULL,
1972 object_release_link_property,
Markus Armbrusterd2623122020-05-05 17:29:22 +02001973 prop);
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001974
1975 op->resolve = object_resolve_link_property;
1976
Marc-André Lureau840ecdf2020-01-10 19:30:29 +04001977 g_free(full_type);
1978 return op;
1979}
1980
Markus Armbruster70251882020-05-05 17:29:14 +02001981ObjectProperty *
1982object_property_add_const_link(Object *obj, const char *name,
Markus Armbrusterd2623122020-05-05 17:29:22 +02001983 Object *target)
Paolo Bonzinifb9e7e32015-05-05 18:29:00 +02001984{
Markus Armbruster70251882020-05-05 17:29:14 +02001985 return object_add_link_prop(obj, name,
1986 object_get_typename(target), target,
Markus Armbrusterd2623122020-05-05 17:29:22 +02001987 NULL, OBJ_PROP_LINK_DIRECT);
Paolo Bonzinifb9e7e32015-05-05 18:29:00 +02001988}
1989
Markus Armbruster7a309cc2020-07-14 18:02:00 +02001990const char *object_get_canonical_path_component(const Object *obj)
Stefan Hajnoczi11f590b2014-03-03 11:30:02 +01001991{
1992 ObjectProperty *prop = NULL;
Pavel Fedinb604a852015-10-13 13:37:45 +01001993 GHashTableIter iter;
Stefan Hajnoczi11f590b2014-03-03 11:30:02 +01001994
Paolo Bonzini770dec22018-04-30 11:44:17 +02001995 if (obj->parent == NULL) {
1996 return NULL;
1997 }
Stefan Hajnoczi11f590b2014-03-03 11:30:02 +01001998
Pavel Fedinb604a852015-10-13 13:37:45 +01001999 g_hash_table_iter_init(&iter, obj->parent->properties);
2000 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
Stefan Hajnoczi11f590b2014-03-03 11:30:02 +01002001 if (!object_property_is_child(prop)) {
2002 continue;
2003 }
2004
2005 if (prop->opaque == obj) {
Markus Armbruster7a309cc2020-07-14 18:02:00 +02002006 return prop->name;
Stefan Hajnoczi11f590b2014-03-03 11:30:02 +01002007 }
2008 }
2009
2010 /* obj had a parent but was not a child, should never happen */
2011 g_assert_not_reached();
2012 return NULL;
2013}
2014
Markus Armbrustere8512df2020-05-27 10:47:53 +02002015char *object_get_canonical_path(const Object *obj)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002016{
2017 Object *root = object_get_root();
Stefan Hajnoczi11f590b2014-03-03 11:30:02 +01002018 char *newpath, *path = NULL;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002019
Paolo Bonzinie40077f2018-05-30 18:16:04 +02002020 if (obj == root) {
2021 return g_strdup("/");
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002022 }
2023
Paolo Bonzinie40077f2018-05-30 18:16:04 +02002024 do {
Markus Armbruster7a309cc2020-07-14 18:02:00 +02002025 const char *component = object_get_canonical_path_component(obj);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002026
Paolo Bonzinie40077f2018-05-30 18:16:04 +02002027 if (!component) {
2028 /* A canonical path must be complete, so discard what was
2029 * collected so far.
2030 */
2031 g_free(path);
2032 return NULL;
2033 }
2034
2035 newpath = g_strdup_printf("/%s%s", component, path ? path : "");
2036 g_free(path);
Paolo Bonzinie40077f2018-05-30 18:16:04 +02002037 path = newpath;
2038 obj = obj->parent;
2039 } while (obj != root);
2040
2041 return path;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002042}
2043
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02002044Object *object_resolve_path_component(Object *parent, const char *part)
Paolo Bonzinia612b2a2012-03-27 18:38:45 +02002045{
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01002046 ObjectProperty *prop = object_property_find(parent, part);
Paolo Bonzinia612b2a2012-03-27 18:38:45 +02002047 if (prop == NULL) {
2048 return NULL;
2049 }
2050
Paolo Bonzini64607d02014-06-05 13:11:51 +02002051 if (prop->resolve) {
2052 return prop->resolve(parent, prop->opaque, part);
Paolo Bonzinia612b2a2012-03-27 18:38:45 +02002053 } else {
2054 return NULL;
2055 }
2056}
2057
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002058static Object *object_resolve_abs_path(Object *parent,
Masahiro Yamadaad195c82020-05-10 10:32:35 +09002059 char **parts,
2060 const char *typename)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002061{
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002062 Object *child;
2063
Masahiro Yamadaad195c82020-05-10 10:32:35 +09002064 if (*parts == NULL) {
Paolo Bonzini02fe2db2012-02-03 11:21:01 +01002065 return object_dynamic_cast(parent, typename);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002066 }
2067
Masahiro Yamadaad195c82020-05-10 10:32:35 +09002068 if (strcmp(*parts, "") == 0) {
2069 return object_resolve_abs_path(parent, parts + 1, typename);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002070 }
2071
Masahiro Yamadaad195c82020-05-10 10:32:35 +09002072 child = object_resolve_path_component(parent, *parts);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002073 if (!child) {
2074 return NULL;
2075 }
2076
Masahiro Yamadaad195c82020-05-10 10:32:35 +09002077 return object_resolve_abs_path(child, parts + 1, typename);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002078}
2079
2080static Object *object_resolve_partial_path(Object *parent,
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02002081 char **parts,
2082 const char *typename,
2083 bool *ambiguous)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002084{
2085 Object *obj;
Pavel Fedinb604a852015-10-13 13:37:45 +01002086 GHashTableIter iter;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002087 ObjectProperty *prop;
2088
Masahiro Yamadaad195c82020-05-10 10:32:35 +09002089 obj = object_resolve_abs_path(parent, parts, typename);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002090
Pavel Fedinb604a852015-10-13 13:37:45 +01002091 g_hash_table_iter_init(&iter, parent->properties);
2092 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002093 Object *found;
2094
Andreas Färber5d9d3f42012-05-27 00:32:40 +02002095 if (!object_property_is_child(prop)) {
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002096 continue;
2097 }
2098
Paolo Bonzini02fe2db2012-02-03 11:21:01 +01002099 found = object_resolve_partial_path(prop->opaque, parts,
2100 typename, ambiguous);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002101 if (found) {
2102 if (obj) {
Eduardo Habkostebcc4792017-07-07 18:30:52 -03002103 *ambiguous = true;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002104 return NULL;
2105 }
2106 obj = found;
2107 }
2108
Eduardo Habkostebcc4792017-07-07 18:30:52 -03002109 if (*ambiguous) {
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002110 return NULL;
2111 }
2112 }
2113
2114 return obj;
2115}
2116
Paolo Bonzini02fe2db2012-02-03 11:21:01 +01002117Object *object_resolve_path_type(const char *path, const char *typename,
Eduardo Habkostebcc4792017-07-07 18:30:52 -03002118 bool *ambiguousp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002119{
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002120 Object *obj;
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02002121 char **parts;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002122
2123 parts = g_strsplit(path, "/", 0);
Paolo Bonzini2e1103f2013-04-18 18:44:02 +02002124 assert(parts);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002125
Paolo Bonzini2e1103f2013-04-18 18:44:02 +02002126 if (parts[0] == NULL || strcmp(parts[0], "") != 0) {
Eduardo Habkostebcc4792017-07-07 18:30:52 -03002127 bool ambiguous = false;
Paolo Bonzini02fe2db2012-02-03 11:21:01 +01002128 obj = object_resolve_partial_path(object_get_root(), parts,
Eduardo Habkostebcc4792017-07-07 18:30:52 -03002129 typename, &ambiguous);
2130 if (ambiguousp) {
2131 *ambiguousp = ambiguous;
2132 }
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002133 } else {
Masahiro Yamadaad195c82020-05-10 10:32:35 +09002134 obj = object_resolve_abs_path(object_get_root(), parts + 1, typename);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002135 }
2136
2137 g_strfreev(parts);
2138
2139 return obj;
2140}
2141
Paolo Bonzini02fe2db2012-02-03 11:21:01 +01002142Object *object_resolve_path(const char *path, bool *ambiguous)
2143{
2144 return object_resolve_path_type(path, TYPE_OBJECT, ambiguous);
2145}
2146
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002147typedef struct StringProperty
2148{
2149 char *(*get)(Object *, Error **);
2150 void (*set)(Object *, const char *, Error **);
2151} StringProperty;
2152
Eric Blaked7bce992016-01-29 06:48:55 -07002153static void property_get_str(Object *obj, Visitor *v, const char *name,
2154 void *opaque, Error **errp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002155{
2156 StringProperty *prop = opaque;
2157 char *value;
Markus Armbrustere1c82372015-08-25 20:00:46 +02002158 Error *err = NULL;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002159
Markus Armbrustere1c82372015-08-25 20:00:46 +02002160 value = prop->get(obj, &err);
2161 if (err) {
2162 error_propagate(errp, err);
2163 return;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002164 }
Markus Armbrustere1c82372015-08-25 20:00:46 +02002165
Eric Blake51e72bc2016-01-29 06:48:54 -07002166 visit_type_str(v, name, &value, errp);
Markus Armbrustere1c82372015-08-25 20:00:46 +02002167 g_free(value);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002168}
2169
Eric Blaked7bce992016-01-29 06:48:55 -07002170static void property_set_str(Object *obj, Visitor *v, const char *name,
2171 void *opaque, Error **errp)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002172{
2173 StringProperty *prop = opaque;
2174 char *value;
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002175
Markus Armbruster668f62e2020-07-07 18:06:02 +02002176 if (!visit_type_str(v, name, &value, errp)) {
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002177 return;
2178 }
2179
2180 prop->set(obj, value, errp);
2181 g_free(value);
2182}
2183
Paolo Bonzini169cbac2020-10-27 12:12:57 -04002184static void property_release_data(Object *obj, const char *name,
2185 void *opaque)
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002186{
Paolo Bonzini169cbac2020-10-27 12:12:57 -04002187 g_free(opaque);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002188}
2189
Markus Armbruster70251882020-05-05 17:29:14 +02002190ObjectProperty *
2191object_property_add_str(Object *obj, const char *name,
2192 char *(*get)(Object *, Error **),
Markus Armbrusterd2623122020-05-05 17:29:22 +02002193 void (*set)(Object *, const char *, Error **))
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002194{
2195 StringProperty *prop = g_malloc0(sizeof(*prop));
2196
2197 prop->get = get;
2198 prop->set = set;
2199
Markus Armbrusterd2623122020-05-05 17:29:22 +02002200 return object_property_add(obj, name, "string",
2201 get ? property_get_str : NULL,
2202 set ? property_set_str : NULL,
Paolo Bonzini169cbac2020-10-27 12:12:57 -04002203 property_release_data,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002204 prop);
Anthony Liguori57c9faf2012-01-30 08:55:55 -06002205}
Paolo Bonzini745549c2012-03-31 16:45:54 +02002206
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002207ObjectProperty *
2208object_class_property_add_str(ObjectClass *klass, const char *name,
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002209 char *(*get)(Object *, Error **),
2210 void (*set)(Object *, const char *,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002211 Error **))
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002212{
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002213 StringProperty *prop = g_malloc0(sizeof(*prop));
2214
2215 prop->get = get;
2216 prop->set = set;
2217
Markus Armbrusterd2623122020-05-05 17:29:22 +02002218 return object_class_property_add(klass, name, "string",
2219 get ? property_get_str : NULL,
2220 set ? property_set_str : NULL,
2221 NULL,
2222 prop);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002223}
2224
Anthony Liguori0e558842012-06-25 10:32:46 -05002225typedef struct BoolProperty
2226{
2227 bool (*get)(Object *, Error **);
2228 void (*set)(Object *, bool, Error **);
2229} BoolProperty;
2230
Eric Blaked7bce992016-01-29 06:48:55 -07002231static void property_get_bool(Object *obj, Visitor *v, const char *name,
2232 void *opaque, Error **errp)
Anthony Liguori0e558842012-06-25 10:32:46 -05002233{
2234 BoolProperty *prop = opaque;
2235 bool value;
Markus Armbruster4715d422015-08-25 20:00:45 +02002236 Error *err = NULL;
Anthony Liguori0e558842012-06-25 10:32:46 -05002237
Markus Armbruster4715d422015-08-25 20:00:45 +02002238 value = prop->get(obj, &err);
2239 if (err) {
2240 error_propagate(errp, err);
2241 return;
2242 }
2243
Eric Blake51e72bc2016-01-29 06:48:54 -07002244 visit_type_bool(v, name, &value, errp);
Anthony Liguori0e558842012-06-25 10:32:46 -05002245}
2246
Eric Blaked7bce992016-01-29 06:48:55 -07002247static void property_set_bool(Object *obj, Visitor *v, const char *name,
2248 void *opaque, Error **errp)
Anthony Liguori0e558842012-06-25 10:32:46 -05002249{
2250 BoolProperty *prop = opaque;
2251 bool value;
Anthony Liguori0e558842012-06-25 10:32:46 -05002252
Markus Armbruster668f62e2020-07-07 18:06:02 +02002253 if (!visit_type_bool(v, name, &value, errp)) {
Anthony Liguori0e558842012-06-25 10:32:46 -05002254 return;
2255 }
2256
2257 prop->set(obj, value, errp);
2258}
2259
Markus Armbruster70251882020-05-05 17:29:14 +02002260ObjectProperty *
2261object_property_add_bool(Object *obj, const char *name,
2262 bool (*get)(Object *, Error **),
Markus Armbrusterd2623122020-05-05 17:29:22 +02002263 void (*set)(Object *, bool, Error **))
Anthony Liguori0e558842012-06-25 10:32:46 -05002264{
2265 BoolProperty *prop = g_malloc0(sizeof(*prop));
2266
2267 prop->get = get;
2268 prop->set = set;
2269
Markus Armbrusterd2623122020-05-05 17:29:22 +02002270 return object_property_add(obj, name, "bool",
2271 get ? property_get_bool : NULL,
2272 set ? property_set_bool : NULL,
Paolo Bonzini169cbac2020-10-27 12:12:57 -04002273 property_release_data,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002274 prop);
Anthony Liguori0e558842012-06-25 10:32:46 -05002275}
2276
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002277ObjectProperty *
2278object_class_property_add_bool(ObjectClass *klass, const char *name,
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002279 bool (*get)(Object *, Error **),
Markus Armbrusterd2623122020-05-05 17:29:22 +02002280 void (*set)(Object *, bool, Error **))
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002281{
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002282 BoolProperty *prop = g_malloc0(sizeof(*prop));
2283
2284 prop->get = get;
2285 prop->set = set;
2286
Markus Armbrusterd2623122020-05-05 17:29:22 +02002287 return object_class_property_add(klass, name, "bool",
2288 get ? property_get_bool : NULL,
2289 set ? property_set_bool : NULL,
2290 NULL,
2291 prop);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002292}
2293
Eric Blaked7bce992016-01-29 06:48:55 -07002294static void property_get_enum(Object *obj, Visitor *v, const char *name,
2295 void *opaque, Error **errp)
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002296{
2297 EnumProperty *prop = opaque;
2298 int value;
Markus Armbruster4715d422015-08-25 20:00:45 +02002299 Error *err = NULL;
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002300
Markus Armbruster4715d422015-08-25 20:00:45 +02002301 value = prop->get(obj, &err);
2302 if (err) {
2303 error_propagate(errp, err);
2304 return;
2305 }
2306
Marc-André Lureauf7abe0e2017-08-24 10:46:10 +02002307 visit_type_enum(v, name, &value, prop->lookup, errp);
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002308}
2309
Eric Blaked7bce992016-01-29 06:48:55 -07002310static void property_set_enum(Object *obj, Visitor *v, const char *name,
2311 void *opaque, Error **errp)
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002312{
2313 EnumProperty *prop = opaque;
2314 int value;
2315
Markus Armbruster668f62e2020-07-07 18:06:02 +02002316 if (!visit_type_enum(v, name, &value, prop->lookup, errp)) {
Markus Armbruster4715d422015-08-25 20:00:45 +02002317 return;
2318 }
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002319 prop->set(obj, value, errp);
2320}
2321
Markus Armbruster70251882020-05-05 17:29:14 +02002322ObjectProperty *
2323object_property_add_enum(Object *obj, const char *name,
2324 const char *typename,
2325 const QEnumLookup *lookup,
2326 int (*get)(Object *, Error **),
Markus Armbrusterd2623122020-05-05 17:29:22 +02002327 void (*set)(Object *, int, Error **))
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002328{
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002329 EnumProperty *prop = g_malloc(sizeof(*prop));
2330
Marc-André Lureauf7abe0e2017-08-24 10:46:10 +02002331 prop->lookup = lookup;
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002332 prop->get = get;
2333 prop->set = set;
2334
Markus Armbrusterd2623122020-05-05 17:29:22 +02002335 return object_property_add(obj, name, typename,
2336 get ? property_get_enum : NULL,
2337 set ? property_set_enum : NULL,
Paolo Bonzini169cbac2020-10-27 12:12:57 -04002338 property_release_data,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002339 prop);
Daniel P. Berrangea8e3fbe2015-05-13 17:14:08 +01002340}
2341
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002342ObjectProperty *
2343object_class_property_add_enum(ObjectClass *klass, const char *name,
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002344 const char *typename,
Marc-André Lureauf7abe0e2017-08-24 10:46:10 +02002345 const QEnumLookup *lookup,
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002346 int (*get)(Object *, Error **),
Markus Armbrusterd2623122020-05-05 17:29:22 +02002347 void (*set)(Object *, int, Error **))
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002348{
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002349 EnumProperty *prop = g_malloc(sizeof(*prop));
2350
Marc-André Lureauf7abe0e2017-08-24 10:46:10 +02002351 prop->lookup = lookup;
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002352 prop->get = get;
2353 prop->set = set;
2354
Markus Armbrusterd2623122020-05-05 17:29:22 +02002355 return object_class_property_add(klass, name, typename,
2356 get ? property_get_enum : NULL,
2357 set ? property_set_enum : NULL,
2358 NULL,
2359 prop);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002360}
2361
David Gibson8e099d12015-02-06 14:55:45 +11002362typedef struct TMProperty {
2363 void (*get)(Object *, struct tm *, Error **);
2364} TMProperty;
2365
Eric Blaked7bce992016-01-29 06:48:55 -07002366static void property_get_tm(Object *obj, Visitor *v, const char *name,
2367 void *opaque, Error **errp)
David Gibson8e099d12015-02-06 14:55:45 +11002368{
2369 TMProperty *prop = opaque;
2370 Error *err = NULL;
2371 struct tm value;
2372
2373 prop->get(obj, &value, &err);
2374 if (err) {
Markus Armbruster992861f2020-07-07 18:06:04 +02002375 error_propagate(errp, err);
2376 return;
David Gibson8e099d12015-02-06 14:55:45 +11002377 }
2378
Markus Armbruster992861f2020-07-07 18:06:04 +02002379 if (!visit_start_struct(v, name, NULL, 0, errp)) {
2380 return;
David Gibson8e099d12015-02-06 14:55:45 +11002381 }
Markus Armbruster992861f2020-07-07 18:06:04 +02002382 if (!visit_type_int32(v, "tm_year", &value.tm_year, errp)) {
David Gibson8e099d12015-02-06 14:55:45 +11002383 goto out_end;
2384 }
Markus Armbruster992861f2020-07-07 18:06:04 +02002385 if (!visit_type_int32(v, "tm_mon", &value.tm_mon, errp)) {
David Gibson8e099d12015-02-06 14:55:45 +11002386 goto out_end;
2387 }
Markus Armbruster992861f2020-07-07 18:06:04 +02002388 if (!visit_type_int32(v, "tm_mday", &value.tm_mday, errp)) {
David Gibson8e099d12015-02-06 14:55:45 +11002389 goto out_end;
2390 }
Markus Armbruster992861f2020-07-07 18:06:04 +02002391 if (!visit_type_int32(v, "tm_hour", &value.tm_hour, errp)) {
David Gibson8e099d12015-02-06 14:55:45 +11002392 goto out_end;
2393 }
Markus Armbruster992861f2020-07-07 18:06:04 +02002394 if (!visit_type_int32(v, "tm_min", &value.tm_min, errp)) {
David Gibson8e099d12015-02-06 14:55:45 +11002395 goto out_end;
2396 }
Markus Armbruster992861f2020-07-07 18:06:04 +02002397 if (!visit_type_int32(v, "tm_sec", &value.tm_sec, errp)) {
David Gibson8e099d12015-02-06 14:55:45 +11002398 goto out_end;
2399 }
Markus Armbruster992861f2020-07-07 18:06:04 +02002400 visit_check_struct(v, errp);
David Gibson8e099d12015-02-06 14:55:45 +11002401out_end:
Eric Blake1158bb22016-06-09 10:48:34 -06002402 visit_end_struct(v, NULL);
David Gibson8e099d12015-02-06 14:55:45 +11002403}
2404
Markus Armbruster70251882020-05-05 17:29:14 +02002405ObjectProperty *
2406object_property_add_tm(Object *obj, const char *name,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002407 void (*get)(Object *, struct tm *, Error **))
David Gibson8e099d12015-02-06 14:55:45 +11002408{
David Gibson8e099d12015-02-06 14:55:45 +11002409 TMProperty *prop = g_malloc0(sizeof(*prop));
2410
2411 prop->get = get;
2412
Markus Armbrusterd2623122020-05-05 17:29:22 +02002413 return object_property_add(obj, name, "struct tm",
2414 get ? property_get_tm : NULL, NULL,
Paolo Bonzini169cbac2020-10-27 12:12:57 -04002415 property_release_data,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002416 prop);
David Gibson8e099d12015-02-06 14:55:45 +11002417}
2418
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002419ObjectProperty *
2420object_class_property_add_tm(ObjectClass *klass, const char *name,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002421 void (*get)(Object *, struct tm *, Error **))
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002422{
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002423 TMProperty *prop = g_malloc0(sizeof(*prop));
2424
2425 prop->get = get;
2426
Markus Armbrusterd2623122020-05-05 17:29:22 +02002427 return object_class_property_add(klass, name, "struct tm",
2428 get ? property_get_tm : NULL,
2429 NULL, NULL, prop);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002430}
2431
Markus Armbruster90c69fb2020-07-07 18:05:50 +02002432static char *object_get_type(Object *obj, Error **errp)
Paolo Bonzini2f262e02012-04-02 17:33:51 +02002433{
2434 return g_strdup(object_get_typename(obj));
2435}
2436
Eric Blaked7bce992016-01-29 06:48:55 -07002437static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *name,
2438 void *opaque, Error **errp)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002439{
2440 uint8_t value = *(uint8_t *)opaque;
Eric Blake51e72bc2016-01-29 06:48:54 -07002441 visit_type_uint8(v, name, &value, errp);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002442}
2443
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002444static void property_set_uint8_ptr(Object *obj, Visitor *v, const char *name,
2445 void *opaque, Error **errp)
2446{
2447 uint8_t *field = opaque;
2448 uint8_t value;
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002449
Markus Armbruster668f62e2020-07-07 18:06:02 +02002450 if (!visit_type_uint8(v, name, &value, errp)) {
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002451 return;
2452 }
2453
2454 *field = value;
2455}
2456
Eric Blaked7bce992016-01-29 06:48:55 -07002457static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
2458 void *opaque, Error **errp)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002459{
2460 uint16_t value = *(uint16_t *)opaque;
Eric Blake51e72bc2016-01-29 06:48:54 -07002461 visit_type_uint16(v, name, &value, errp);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002462}
2463
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002464static void property_set_uint16_ptr(Object *obj, Visitor *v, const char *name,
2465 void *opaque, Error **errp)
2466{
2467 uint16_t *field = opaque;
2468 uint16_t value;
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002469
Markus Armbruster668f62e2020-07-07 18:06:02 +02002470 if (!visit_type_uint16(v, name, &value, errp)) {
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002471 return;
2472 }
2473
2474 *field = value;
2475}
2476
Eric Blaked7bce992016-01-29 06:48:55 -07002477static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
2478 void *opaque, Error **errp)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002479{
2480 uint32_t value = *(uint32_t *)opaque;
Eric Blake51e72bc2016-01-29 06:48:54 -07002481 visit_type_uint32(v, name, &value, errp);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002482}
2483
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002484static void property_set_uint32_ptr(Object *obj, Visitor *v, const char *name,
2485 void *opaque, Error **errp)
2486{
2487 uint32_t *field = opaque;
2488 uint32_t value;
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002489
Markus Armbruster668f62e2020-07-07 18:06:02 +02002490 if (!visit_type_uint32(v, name, &value, errp)) {
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002491 return;
2492 }
2493
2494 *field = value;
2495}
2496
Eric Blaked7bce992016-01-29 06:48:55 -07002497static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
2498 void *opaque, Error **errp)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002499{
2500 uint64_t value = *(uint64_t *)opaque;
Eric Blake51e72bc2016-01-29 06:48:54 -07002501 visit_type_uint64(v, name, &value, errp);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002502}
2503
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002504static void property_set_uint64_ptr(Object *obj, Visitor *v, const char *name,
2505 void *opaque, Error **errp)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002506{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002507 uint64_t *field = opaque;
2508 uint64_t value;
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002509
Markus Armbruster668f62e2020-07-07 18:06:02 +02002510 if (!visit_type_uint64(v, name, &value, errp)) {
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002511 return;
2512 }
2513
2514 *field = value;
2515}
2516
Markus Armbruster70251882020-05-05 17:29:14 +02002517ObjectProperty *
2518object_property_add_uint8_ptr(Object *obj, const char *name,
2519 const uint8_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002520 ObjectPropertyFlags flags)
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002521{
2522 ObjectPropertyAccessor *getter = NULL;
2523 ObjectPropertyAccessor *setter = NULL;
2524
2525 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2526 getter = property_get_uint8_ptr;
2527 }
2528
2529 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2530 setter = property_set_uint8_ptr;
2531 }
2532
Markus Armbruster70251882020-05-05 17:29:14 +02002533 return object_property_add(obj, name, "uint8",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002534 getter, setter, NULL, (void *)v);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002535}
2536
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002537ObjectProperty *
2538object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002539 const uint8_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002540 ObjectPropertyFlags flags)
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002541{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002542 ObjectPropertyAccessor *getter = NULL;
2543 ObjectPropertyAccessor *setter = NULL;
2544
2545 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2546 getter = property_get_uint8_ptr;
2547 }
2548
2549 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2550 setter = property_set_uint8_ptr;
2551 }
2552
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002553 return object_class_property_add(klass, name, "uint8",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002554 getter, setter, NULL, (void *)v);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002555}
2556
Markus Armbruster70251882020-05-05 17:29:14 +02002557ObjectProperty *
2558object_property_add_uint16_ptr(Object *obj, const char *name,
2559 const uint16_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002560 ObjectPropertyFlags flags)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002561{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002562 ObjectPropertyAccessor *getter = NULL;
2563 ObjectPropertyAccessor *setter = NULL;
2564
2565 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2566 getter = property_get_uint16_ptr;
2567 }
2568
2569 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2570 setter = property_set_uint16_ptr;
2571 }
2572
Markus Armbruster70251882020-05-05 17:29:14 +02002573 return object_property_add(obj, name, "uint16",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002574 getter, setter, NULL, (void *)v);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002575}
2576
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002577ObjectProperty *
2578object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002579 const uint16_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002580 ObjectPropertyFlags flags)
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002581{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002582 ObjectPropertyAccessor *getter = NULL;
2583 ObjectPropertyAccessor *setter = NULL;
2584
2585 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2586 getter = property_get_uint16_ptr;
2587 }
2588
2589 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2590 setter = property_set_uint16_ptr;
2591 }
2592
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002593 return object_class_property_add(klass, name, "uint16",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002594 getter, setter, NULL, (void *)v);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002595}
2596
Markus Armbruster70251882020-05-05 17:29:14 +02002597ObjectProperty *
2598object_property_add_uint32_ptr(Object *obj, const char *name,
2599 const uint32_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002600 ObjectPropertyFlags flags)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002601{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002602 ObjectPropertyAccessor *getter = NULL;
2603 ObjectPropertyAccessor *setter = NULL;
2604
2605 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2606 getter = property_get_uint32_ptr;
2607 }
2608
2609 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2610 setter = property_set_uint32_ptr;
2611 }
2612
Markus Armbruster70251882020-05-05 17:29:14 +02002613 return object_property_add(obj, name, "uint32",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002614 getter, setter, NULL, (void *)v);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002615}
2616
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002617ObjectProperty *
2618object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002619 const uint32_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002620 ObjectPropertyFlags flags)
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002621{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002622 ObjectPropertyAccessor *getter = NULL;
2623 ObjectPropertyAccessor *setter = NULL;
2624
2625 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2626 getter = property_get_uint32_ptr;
2627 }
2628
2629 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2630 setter = property_set_uint32_ptr;
2631 }
2632
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002633 return object_class_property_add(klass, name, "uint32",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002634 getter, setter, NULL, (void *)v);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002635}
2636
Markus Armbruster70251882020-05-05 17:29:14 +02002637ObjectProperty *
2638object_property_add_uint64_ptr(Object *obj, const char *name,
2639 const uint64_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002640 ObjectPropertyFlags flags)
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002641{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002642 ObjectPropertyAccessor *getter = NULL;
2643 ObjectPropertyAccessor *setter = NULL;
2644
2645 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2646 getter = property_get_uint64_ptr;
2647 }
2648
2649 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2650 setter = property_set_uint64_ptr;
2651 }
2652
Markus Armbruster70251882020-05-05 17:29:14 +02002653 return object_property_add(obj, name, "uint64",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002654 getter, setter, NULL, (void *)v);
Michael S. Tsirkine732ea62013-09-22 10:10:17 +03002655}
2656
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002657ObjectProperty *
2658object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002659 const uint64_t *v,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002660 ObjectPropertyFlags flags)
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002661{
Felipe Franciosi836e1b32020-02-04 13:15:58 +00002662 ObjectPropertyAccessor *getter = NULL;
2663 ObjectPropertyAccessor *setter = NULL;
2664
2665 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2666 getter = property_get_uint64_ptr;
2667 }
2668
2669 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2670 setter = property_set_uint64_ptr;
2671 }
2672
Marc-André Lureaua3a16212020-01-10 19:30:21 +04002673 return object_class_property_add(klass, name, "uint64",
Markus Armbrusterd2623122020-05-05 17:29:22 +02002674 getter, setter, NULL, (void *)v);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002675}
2676
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002677typedef struct {
2678 Object *target_obj;
Eduardo Habkost1590d262015-04-09 16:57:29 -03002679 char *target_name;
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002680} AliasProperty;
2681
Eric Blaked7bce992016-01-29 06:48:55 -07002682static void property_get_alias(Object *obj, Visitor *v, const char *name,
2683 void *opaque, Error **errp)
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002684{
2685 AliasProperty *prop = opaque;
2686
Markus Armbruster5325cc32020-07-07 18:05:54 +02002687 object_property_get(prop->target_obj, prop->target_name, v, errp);
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002688}
2689
Eric Blaked7bce992016-01-29 06:48:55 -07002690static void property_set_alias(Object *obj, Visitor *v, const char *name,
2691 void *opaque, Error **errp)
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002692{
2693 AliasProperty *prop = opaque;
2694
Markus Armbruster5325cc32020-07-07 18:05:54 +02002695 object_property_set(prop->target_obj, prop->target_name, v, errp);
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002696}
2697
Paolo Bonzini64607d02014-06-05 13:11:51 +02002698static Object *property_resolve_alias(Object *obj, void *opaque,
Markus Armbrusterddfb0ba2020-05-05 17:29:10 +02002699 const char *part)
Paolo Bonzini64607d02014-06-05 13:11:51 +02002700{
2701 AliasProperty *prop = opaque;
2702
2703 return object_resolve_path_component(prop->target_obj, prop->target_name);
2704}
2705
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002706static void property_release_alias(Object *obj, const char *name, void *opaque)
2707{
2708 AliasProperty *prop = opaque;
2709
Eduardo Habkost1590d262015-04-09 16:57:29 -03002710 g_free(prop->target_name);
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002711 g_free(prop);
2712}
2713
Markus Armbruster70251882020-05-05 17:29:14 +02002714ObjectProperty *
2715object_property_add_alias(Object *obj, const char *name,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002716 Object *target_obj, const char *target_name)
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002717{
2718 AliasProperty *prop;
Paolo Bonzini64607d02014-06-05 13:11:51 +02002719 ObjectProperty *op;
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002720 ObjectProperty *target_prop;
Markus Armbruster70251882020-05-05 17:29:14 +02002721 g_autofree char *prop_type = NULL;
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002722
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01002723 target_prop = object_property_find_err(target_obj, target_name,
2724 &error_abort);
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002725
Paolo Bonzinid1906982014-06-10 11:17:35 +02002726 if (object_property_is_child(target_prop)) {
2727 prop_type = g_strdup_printf("link%s",
2728 target_prop->type + strlen("child"));
2729 } else {
2730 prop_type = g_strdup(target_prop->type);
2731 }
2732
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002733 prop = g_malloc(sizeof(*prop));
2734 prop->target_obj = target_obj;
Eduardo Habkost1590d262015-04-09 16:57:29 -03002735 prop->target_name = g_strdup(target_name);
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002736
Paolo Bonzinid1906982014-06-10 11:17:35 +02002737 op = object_property_add(obj, name, prop_type,
Paolo Bonzini64607d02014-06-05 13:11:51 +02002738 property_get_alias,
2739 property_set_alias,
2740 property_release_alias,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002741 prop);
Paolo Bonzini64607d02014-06-05 13:11:51 +02002742 op->resolve = property_resolve_alias;
Marc-André Lureau0e76ed02020-01-10 19:30:23 +04002743 if (target_prop->defval) {
2744 op->defval = qobject_ref(target_prop->defval);
2745 }
Paolo Bonzinid1906982014-06-10 11:17:35 +02002746
Andreas Färbera18bb412015-03-27 17:34:10 +01002747 object_property_set_description(obj, op->name,
Markus Armbruster7eecec72020-05-05 17:29:15 +02002748 target_prop->description);
Markus Armbruster70251882020-05-05 17:29:14 +02002749 return op;
Stefan Hajnoczief7c7ff2014-06-18 17:58:28 +08002750}
2751
Gonglei80742642014-10-07 14:33:21 +08002752void object_property_set_description(Object *obj, const char *name,
Markus Armbruster7eecec72020-05-05 17:29:15 +02002753 const char *description)
Gonglei80742642014-10-07 14:33:21 +08002754{
2755 ObjectProperty *op;
2756
Daniel P. Berrangéefba1592020-09-14 14:56:17 +01002757 op = object_property_find_err(obj, name, &error_abort);
Gonglei80742642014-10-07 14:33:21 +08002758 g_free(op->description);
2759 op->description = g_strdup(description);
2760}
2761
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002762void object_class_property_set_description(ObjectClass *klass,
2763 const char *name,
Markus Armbruster7eecec72020-05-05 17:29:15 +02002764 const char *description)
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002765{
2766 ObjectProperty *op;
2767
2768 op = g_hash_table_lookup(klass->properties, name);
Daniel P. Berrange16bf7f52015-10-13 13:37:46 +01002769 g_free(op->description);
2770 op->description = g_strdup(description);
2771}
2772
Marc-André Lureau7439a032018-09-06 18:09:32 +04002773static void object_class_init(ObjectClass *klass, void *data)
Paolo Bonzini2f262e02012-04-02 17:33:51 +02002774{
Markus Armbruster90c69fb2020-07-07 18:05:50 +02002775 object_class_property_add_str(klass, "type", object_get_type,
Markus Armbrusterd2623122020-05-05 17:29:22 +02002776 NULL);
Paolo Bonzini2f262e02012-04-02 17:33:51 +02002777}
2778
Paolo Bonzini745549c2012-03-31 16:45:54 +02002779static void register_types(void)
2780{
2781 static TypeInfo interface_info = {
2782 .name = TYPE_INTERFACE,
Anthony Liguori33e95c62012-08-10 13:16:10 +10002783 .class_size = sizeof(InterfaceClass),
Paolo Bonzini745549c2012-03-31 16:45:54 +02002784 .abstract = true,
2785 };
2786
2787 static TypeInfo object_info = {
2788 .name = TYPE_OBJECT,
2789 .instance_size = sizeof(Object),
Marc-André Lureau7439a032018-09-06 18:09:32 +04002790 .class_init = object_class_init,
Paolo Bonzini745549c2012-03-31 16:45:54 +02002791 .abstract = true,
2792 };
2793
Paolo Bonzini049cb3c2012-04-04 15:58:40 +02002794 type_interface = type_register_internal(&interface_info);
2795 type_register_internal(&object_info);
Paolo Bonzini745549c2012-03-31 16:45:54 +02002796}
2797
2798type_init(register_types)