Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 1 | /* |
| 2 | * QEMU Object Model |
| 3 | * |
| 4 | * Copyright IBM, Corp. 2011 |
| 5 | * |
| 6 | * Authors: |
| 7 | * Anthony Liguori <aliguori@us.ibm.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 10 | * See the COPYING file in the top-level directory. |
| 11 | */ |
| 12 | |
Paolo Bonzini | 14cccb6 | 2012-12-17 18:19:50 +0100 | [diff] [blame] | 13 | #include "qom/object.h" |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 14 | #include "qemu-common.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 15 | #include "qapi/visitor.h" |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 16 | #include "qapi/string-input-visitor.h" |
| 17 | #include "qapi/string-output-visitor.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 18 | #include "qapi/qmp/qerror.h" |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 19 | #include "trace.h" |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 20 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 21 | /* TODO: replace QObject with a simpler visitor to avoid a dependency |
| 22 | * of the QOM core on QObject? */ |
Paolo Bonzini | 14cccb6 | 2012-12-17 18:19:50 +0100 | [diff] [blame] | 23 | #include "qom/qom-qobject.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 24 | #include "qapi/qmp/qobject.h" |
| 25 | #include "qapi/qmp/qbool.h" |
| 26 | #include "qapi/qmp/qint.h" |
| 27 | #include "qapi/qmp/qstring.h" |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 28 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 29 | #define MAX_INTERFACES 32 |
| 30 | |
| 31 | typedef struct InterfaceImpl InterfaceImpl; |
| 32 | typedef struct TypeImpl TypeImpl; |
| 33 | |
| 34 | struct InterfaceImpl |
| 35 | { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 36 | const char *typename; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 37 | }; |
| 38 | |
| 39 | struct TypeImpl |
| 40 | { |
| 41 | const char *name; |
| 42 | |
| 43 | size_t class_size; |
| 44 | |
| 45 | size_t instance_size; |
| 46 | |
| 47 | void (*class_init)(ObjectClass *klass, void *data); |
Paolo Bonzini | 3b50e31 | 2012-05-02 13:30:55 +0200 | [diff] [blame] | 48 | void (*class_base_init)(ObjectClass *klass, void *data); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 49 | void (*class_finalize)(ObjectClass *klass, void *data); |
| 50 | |
| 51 | void *class_data; |
| 52 | |
| 53 | void (*instance_init)(Object *obj); |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 54 | void (*instance_post_init)(Object *obj); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 55 | void (*instance_finalize)(Object *obj); |
| 56 | |
| 57 | bool abstract; |
| 58 | |
| 59 | const char *parent; |
| 60 | TypeImpl *parent_type; |
| 61 | |
| 62 | ObjectClass *class; |
| 63 | |
| 64 | int num_interfaces; |
| 65 | InterfaceImpl interfaces[MAX_INTERFACES]; |
| 66 | }; |
| 67 | |
Paolo Bonzini | 9970bd8 | 2012-02-03 11:51:39 +0100 | [diff] [blame] | 68 | static Type type_interface; |
| 69 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 70 | static GHashTable *type_table_get(void) |
| 71 | { |
| 72 | static GHashTable *type_table; |
| 73 | |
| 74 | if (type_table == NULL) { |
| 75 | type_table = g_hash_table_new(g_str_hash, g_str_equal); |
| 76 | } |
| 77 | |
| 78 | return type_table; |
| 79 | } |
| 80 | |
| 81 | static void type_table_add(TypeImpl *ti) |
| 82 | { |
| 83 | g_hash_table_insert(type_table_get(), (void *)ti->name, ti); |
| 84 | } |
| 85 | |
| 86 | static TypeImpl *type_table_lookup(const char *name) |
| 87 | { |
| 88 | return g_hash_table_lookup(type_table_get(), name); |
| 89 | } |
| 90 | |
Paolo Bonzini | 049cb3c | 2012-04-04 15:58:40 +0200 | [diff] [blame] | 91 | static TypeImpl *type_register_internal(const TypeInfo *info) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 92 | { |
| 93 | TypeImpl *ti = g_malloc0(sizeof(*ti)); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 94 | int i; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 95 | |
| 96 | g_assert(info->name != NULL); |
| 97 | |
Anthony Liguori | 7309335 | 2012-01-25 13:37:36 -0600 | [diff] [blame] | 98 | if (type_table_lookup(info->name) != NULL) { |
| 99 | fprintf(stderr, "Registering `%s' which already exists\n", info->name); |
| 100 | abort(); |
| 101 | } |
| 102 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 103 | ti->name = g_strdup(info->name); |
| 104 | ti->parent = g_strdup(info->parent); |
| 105 | |
| 106 | ti->class_size = info->class_size; |
| 107 | ti->instance_size = info->instance_size; |
| 108 | |
| 109 | ti->class_init = info->class_init; |
Paolo Bonzini | 3b50e31 | 2012-05-02 13:30:55 +0200 | [diff] [blame] | 110 | ti->class_base_init = info->class_base_init; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 111 | ti->class_finalize = info->class_finalize; |
| 112 | ti->class_data = info->class_data; |
| 113 | |
| 114 | ti->instance_init = info->instance_init; |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 115 | ti->instance_post_init = info->instance_post_init; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 116 | ti->instance_finalize = info->instance_finalize; |
| 117 | |
| 118 | ti->abstract = info->abstract; |
| 119 | |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 120 | for (i = 0; info->interfaces && info->interfaces[i].type; i++) { |
| 121 | ti->interfaces[i].typename = g_strdup(info->interfaces[i].type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 122 | } |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 123 | ti->num_interfaces = i; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 124 | |
| 125 | type_table_add(ti); |
| 126 | |
| 127 | return ti; |
| 128 | } |
| 129 | |
Paolo Bonzini | 049cb3c | 2012-04-04 15:58:40 +0200 | [diff] [blame] | 130 | TypeImpl *type_register(const TypeInfo *info) |
| 131 | { |
| 132 | assert(info->parent); |
| 133 | return type_register_internal(info); |
| 134 | } |
| 135 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 136 | TypeImpl *type_register_static(const TypeInfo *info) |
| 137 | { |
| 138 | return type_register(info); |
| 139 | } |
| 140 | |
| 141 | static TypeImpl *type_get_by_name(const char *name) |
| 142 | { |
| 143 | if (name == NULL) { |
| 144 | return NULL; |
| 145 | } |
| 146 | |
| 147 | return type_table_lookup(name); |
| 148 | } |
| 149 | |
| 150 | static TypeImpl *type_get_parent(TypeImpl *type) |
| 151 | { |
| 152 | if (!type->parent_type && type->parent) { |
| 153 | type->parent_type = type_get_by_name(type->parent); |
| 154 | g_assert(type->parent_type != NULL); |
| 155 | } |
| 156 | |
| 157 | return type->parent_type; |
| 158 | } |
| 159 | |
| 160 | static bool type_has_parent(TypeImpl *type) |
| 161 | { |
| 162 | return (type->parent != NULL); |
| 163 | } |
| 164 | |
| 165 | static size_t type_class_get_size(TypeImpl *ti) |
| 166 | { |
| 167 | if (ti->class_size) { |
| 168 | return ti->class_size; |
| 169 | } |
| 170 | |
| 171 | if (type_has_parent(ti)) { |
| 172 | return type_class_get_size(type_get_parent(ti)); |
| 173 | } |
| 174 | |
| 175 | return sizeof(ObjectClass); |
| 176 | } |
| 177 | |
Igor Mitsyanko | aca59af | 2012-02-28 15:57:10 +0400 | [diff] [blame] | 178 | static size_t type_object_get_size(TypeImpl *ti) |
| 179 | { |
| 180 | if (ti->instance_size) { |
| 181 | return ti->instance_size; |
| 182 | } |
| 183 | |
| 184 | if (type_has_parent(ti)) { |
| 185 | return type_object_get_size(type_get_parent(ti)); |
| 186 | } |
| 187 | |
| 188 | return 0; |
| 189 | } |
| 190 | |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 191 | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 192 | { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 193 | assert(target_type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 194 | |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 195 | /* Check if typename is a direct ancestor of type */ |
| 196 | while (type) { |
| 197 | if (type == target_type) { |
| 198 | return true; |
| 199 | } |
| 200 | |
| 201 | type = type_get_parent(type); |
| 202 | } |
| 203 | |
| 204 | return false; |
| 205 | } |
| 206 | |
| 207 | static void type_initialize(TypeImpl *ti); |
| 208 | |
| 209 | static void type_initialize_interface(TypeImpl *ti, const char *parent) |
| 210 | { |
| 211 | InterfaceClass *new_iface; |
| 212 | TypeInfo info = { }; |
| 213 | TypeImpl *iface_impl; |
| 214 | |
| 215 | info.parent = parent; |
| 216 | info.name = g_strdup_printf("%s::%s", ti->name, info.parent); |
| 217 | info.abstract = true; |
| 218 | |
| 219 | iface_impl = type_register(&info); |
| 220 | type_initialize(iface_impl); |
| 221 | g_free((char *)info.name); |
| 222 | |
| 223 | new_iface = (InterfaceClass *)iface_impl->class; |
| 224 | new_iface->concrete_class = ti->class; |
| 225 | |
| 226 | ti->class->interfaces = g_slist_append(ti->class->interfaces, |
| 227 | iface_impl->class); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 228 | } |
| 229 | |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 230 | static void type_initialize(TypeImpl *ti) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 231 | { |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 232 | TypeImpl *parent; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 233 | |
| 234 | if (ti->class) { |
| 235 | return; |
| 236 | } |
| 237 | |
| 238 | ti->class_size = type_class_get_size(ti); |
Igor Mitsyanko | aca59af | 2012-02-28 15:57:10 +0400 | [diff] [blame] | 239 | ti->instance_size = type_object_get_size(ti); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 240 | |
| 241 | ti->class = g_malloc0(ti->class_size); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 242 | |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 243 | parent = type_get_parent(ti); |
| 244 | if (parent) { |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 245 | type_initialize(parent); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 246 | GSList *e; |
| 247 | int i; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 248 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 249 | g_assert(parent->class_size <= ti->class_size); |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 250 | memcpy(ti->class, parent->class, parent->class_size); |
Peter Crosthwaite | 3e407de | 2013-02-19 14:02:09 +1000 | [diff] [blame] | 251 | ti->class->interfaces = NULL; |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 252 | |
| 253 | for (e = parent->class->interfaces; e; e = e->next) { |
| 254 | ObjectClass *iface = e->data; |
| 255 | type_initialize_interface(ti, object_class_get_name(iface)); |
| 256 | } |
| 257 | |
| 258 | for (i = 0; i < ti->num_interfaces; i++) { |
| 259 | TypeImpl *t = type_get_by_name(ti->interfaces[i].typename); |
| 260 | for (e = ti->class->interfaces; e; e = e->next) { |
| 261 | TypeImpl *target_type = OBJECT_CLASS(e->data)->type; |
| 262 | |
| 263 | if (type_is_ancestor(target_type, t)) { |
| 264 | break; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | if (e) { |
| 269 | continue; |
| 270 | } |
| 271 | |
| 272 | type_initialize_interface(ti, ti->interfaces[i].typename); |
| 273 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 274 | } |
| 275 | |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 276 | ti->class->type = ti; |
| 277 | |
| 278 | while (parent) { |
| 279 | if (parent->class_base_init) { |
| 280 | parent->class_base_init(ti->class, ti->class_data); |
| 281 | } |
| 282 | parent = type_get_parent(parent); |
| 283 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 284 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 285 | if (ti->class_init) { |
| 286 | ti->class_init(ti->class, ti->class_data); |
| 287 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 288 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 289 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 290 | } |
| 291 | |
| 292 | static void object_init_with_type(Object *obj, TypeImpl *ti) |
| 293 | { |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 294 | if (type_has_parent(ti)) { |
| 295 | object_init_with_type(obj, type_get_parent(ti)); |
| 296 | } |
| 297 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 298 | if (ti->instance_init) { |
| 299 | ti->instance_init(obj); |
| 300 | } |
| 301 | } |
| 302 | |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 303 | static void object_post_init_with_type(Object *obj, TypeImpl *ti) |
| 304 | { |
| 305 | if (ti->instance_post_init) { |
| 306 | ti->instance_post_init(obj); |
| 307 | } |
| 308 | |
| 309 | if (type_has_parent(ti)) { |
| 310 | object_post_init_with_type(obj, type_get_parent(ti)); |
| 311 | } |
| 312 | } |
| 313 | |
Andreas Färber | 5b9237f | 2013-08-30 18:28:37 +0200 | [diff] [blame] | 314 | void object_initialize_with_type(void *data, size_t size, TypeImpl *type) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 315 | { |
| 316 | Object *obj = data; |
| 317 | |
| 318 | g_assert(type != NULL); |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 319 | type_initialize(type); |
Igor Mitsyanko | aca59af | 2012-02-28 15:57:10 +0400 | [diff] [blame] | 320 | |
| 321 | g_assert(type->instance_size >= sizeof(Object)); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 322 | g_assert(type->abstract == false); |
Andreas Färber | 5b9237f | 2013-08-30 18:28:37 +0200 | [diff] [blame] | 323 | g_assert(size >= type->instance_size); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 324 | |
| 325 | memset(obj, 0, type->instance_size); |
| 326 | obj->class = type->class; |
Paolo Bonzini | 764b631 | 2012-11-23 09:47:12 +0100 | [diff] [blame] | 327 | object_ref(obj); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 328 | QTAILQ_INIT(&obj->properties); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 329 | object_init_with_type(obj, type); |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 330 | object_post_init_with_type(obj, type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 331 | } |
| 332 | |
Andreas Färber | 213f0c4 | 2013-08-23 19:37:12 +0200 | [diff] [blame] | 333 | void object_initialize(void *data, size_t size, const char *typename) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 334 | { |
| 335 | TypeImpl *type = type_get_by_name(typename); |
| 336 | |
Andreas Färber | 5b9237f | 2013-08-30 18:28:37 +0200 | [diff] [blame] | 337 | object_initialize_with_type(data, size, type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 338 | } |
| 339 | |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 340 | static inline bool object_property_is_child(ObjectProperty *prop) |
| 341 | { |
| 342 | return strstart(prop->type, "child<", NULL); |
| 343 | } |
| 344 | |
| 345 | static inline bool object_property_is_link(ObjectProperty *prop) |
| 346 | { |
| 347 | return strstart(prop->type, "link<", NULL); |
| 348 | } |
| 349 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 350 | static void object_property_del_all(Object *obj) |
| 351 | { |
| 352 | while (!QTAILQ_EMPTY(&obj->properties)) { |
| 353 | ObjectProperty *prop = QTAILQ_FIRST(&obj->properties); |
| 354 | |
| 355 | QTAILQ_REMOVE(&obj->properties, prop, node); |
| 356 | |
| 357 | if (prop->release) { |
| 358 | prop->release(obj, prop->name, prop->opaque); |
| 359 | } |
| 360 | |
| 361 | g_free(prop->name); |
| 362 | g_free(prop->type); |
| 363 | g_free(prop); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | static void object_property_del_child(Object *obj, Object *child, Error **errp) |
| 368 | { |
| 369 | ObjectProperty *prop; |
| 370 | |
| 371 | QTAILQ_FOREACH(prop, &obj->properties, node) { |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 372 | if (object_property_is_child(prop) && prop->opaque == child) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 373 | object_property_del(obj, prop->name, errp); |
Paolo Bonzini | 6c1fdcf | 2012-02-28 09:54:15 +0100 | [diff] [blame] | 374 | break; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 375 | } |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | void object_unparent(Object *obj) |
| 380 | { |
Paolo Bonzini | e0a83fc | 2013-04-02 15:50:00 +0200 | [diff] [blame] | 381 | if (!obj->parent) { |
| 382 | return; |
| 383 | } |
| 384 | |
Paolo Bonzini | 52e636c | 2013-01-25 14:12:30 +0100 | [diff] [blame] | 385 | object_ref(obj); |
Paolo Bonzini | 667d22d | 2012-11-23 09:47:13 +0100 | [diff] [blame] | 386 | if (obj->class->unparent) { |
| 387 | (obj->class->unparent)(obj); |
| 388 | } |
Michael S. Tsirkin | e998fa8 | 2013-03-18 21:01:37 +0200 | [diff] [blame] | 389 | if (obj->parent) { |
| 390 | object_property_del_child(obj->parent, obj, NULL); |
| 391 | } |
Paolo Bonzini | 52e636c | 2013-01-25 14:12:30 +0100 | [diff] [blame] | 392 | object_unref(obj); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 393 | } |
| 394 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 395 | static void object_deinit(Object *obj, TypeImpl *type) |
| 396 | { |
| 397 | if (type->instance_finalize) { |
| 398 | type->instance_finalize(obj); |
| 399 | } |
| 400 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 401 | if (type_has_parent(type)) { |
| 402 | object_deinit(obj, type_get_parent(type)); |
| 403 | } |
| 404 | } |
| 405 | |
Paolo Bonzini | 339c270 | 2012-11-23 09:47:16 +0100 | [diff] [blame] | 406 | static void object_finalize(void *data) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 407 | { |
| 408 | Object *obj = data; |
| 409 | TypeImpl *ti = obj->class->type; |
| 410 | |
| 411 | object_deinit(obj, ti); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 412 | object_property_del_all(obj); |
Anthony Liguori | db85b57 | 2011-12-23 08:47:39 -0600 | [diff] [blame] | 413 | |
| 414 | g_assert(obj->ref == 0); |
Paolo Bonzini | fde9bf4 | 2012-11-23 09:47:14 +0100 | [diff] [blame] | 415 | if (obj->free) { |
| 416 | obj->free(obj); |
| 417 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | Object *object_new_with_type(Type type) |
| 421 | { |
| 422 | Object *obj; |
| 423 | |
| 424 | g_assert(type != NULL); |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 425 | type_initialize(type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 426 | |
| 427 | obj = g_malloc(type->instance_size); |
Andreas Färber | 5b9237f | 2013-08-30 18:28:37 +0200 | [diff] [blame] | 428 | object_initialize_with_type(obj, type->instance_size, type); |
Paolo Bonzini | fde9bf4 | 2012-11-23 09:47:14 +0100 | [diff] [blame] | 429 | obj->free = g_free; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 430 | |
| 431 | return obj; |
| 432 | } |
| 433 | |
| 434 | Object *object_new(const char *typename) |
| 435 | { |
| 436 | TypeImpl *ti = type_get_by_name(typename); |
| 437 | |
| 438 | return object_new_with_type(ti); |
| 439 | } |
| 440 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 441 | Object *object_dynamic_cast(Object *obj, const char *typename) |
| 442 | { |
Paolo Bonzini | b7f43fe | 2012-11-23 16:56:17 +0100 | [diff] [blame] | 443 | if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) { |
Paolo Bonzini | acc4af3 | 2012-02-03 11:57:23 +0100 | [diff] [blame] | 444 | return obj; |
| 445 | } |
| 446 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 447 | return NULL; |
| 448 | } |
| 449 | |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 450 | Object *object_dynamic_cast_assert(Object *obj, const char *typename, |
| 451 | const char *file, int line, const char *func) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 452 | { |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 453 | trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)", |
| 454 | typename, file, line, func); |
| 455 | |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 456 | #ifdef CONFIG_QOM_CAST_DEBUG |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 457 | int i; |
| 458 | Object *inst; |
| 459 | |
Peter Crosthwaite | 95916ab | 2013-05-22 11:19:16 +1000 | [diff] [blame] | 460 | for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 461 | if (obj->class->cast_cache[i] == typename) { |
| 462 | goto out; |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | inst = object_dynamic_cast(obj, typename); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 467 | |
Paolo Bonzini | b7f43fe | 2012-11-23 16:56:17 +0100 | [diff] [blame] | 468 | if (!inst && obj) { |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 469 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
| 470 | file, line, func, obj, typename); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 471 | abort(); |
| 472 | } |
| 473 | |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 474 | assert(obj == inst); |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 475 | |
Peter Crosthwaite | 95916ab | 2013-05-22 11:19:16 +1000 | [diff] [blame] | 476 | if (obj && obj == inst) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 477 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
| 478 | obj->class->cast_cache[i - 1] = obj->class->cast_cache[i]; |
| 479 | } |
| 480 | obj->class->cast_cache[i - 1] = typename; |
| 481 | } |
| 482 | |
| 483 | out: |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 484 | #endif |
| 485 | return obj; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | ObjectClass *object_class_dynamic_cast(ObjectClass *class, |
| 489 | const char *typename) |
| 490 | { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 491 | ObjectClass *ret = NULL; |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 492 | TypeImpl *target_type; |
| 493 | TypeImpl *type; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 494 | |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 495 | if (!class) { |
| 496 | return NULL; |
| 497 | } |
| 498 | |
Paolo Bonzini | 793c96b | 2013-05-10 14:16:37 +0200 | [diff] [blame] | 499 | /* A simple fast path that can trigger a lot for leaf classes. */ |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 500 | type = class->type; |
Paolo Bonzini | 793c96b | 2013-05-10 14:16:37 +0200 | [diff] [blame] | 501 | if (type->name == typename) { |
| 502 | return class; |
| 503 | } |
| 504 | |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 505 | target_type = type_get_by_name(typename); |
Alexander Graf | 9ab880b | 2013-04-30 15:02:16 +0200 | [diff] [blame] | 506 | if (!target_type) { |
| 507 | /* target class type unknown, so fail the cast */ |
| 508 | return NULL; |
| 509 | } |
| 510 | |
Peter Crosthwaite | 00e2cea | 2013-02-19 14:02:10 +1000 | [diff] [blame] | 511 | if (type->class->interfaces && |
| 512 | type_is_ancestor(target_type, type_interface)) { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 513 | int found = 0; |
| 514 | GSList *i; |
| 515 | |
| 516 | for (i = class->interfaces; i; i = i->next) { |
| 517 | ObjectClass *target_class = i->data; |
| 518 | |
| 519 | if (type_is_ancestor(target_class->type, target_type)) { |
| 520 | ret = target_class; |
| 521 | found++; |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | /* The match was ambiguous, don't allow a cast */ |
| 526 | if (found > 1) { |
| 527 | ret = NULL; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 528 | } |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 529 | } else if (type_is_ancestor(type, target_type)) { |
| 530 | ret = class; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 531 | } |
| 532 | |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 533 | return ret; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 534 | } |
| 535 | |
| 536 | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 537 | const char *typename, |
| 538 | const char *file, int line, |
| 539 | const char *func) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 540 | { |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 541 | ObjectClass *ret; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 542 | |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 543 | trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)", |
| 544 | typename, file, line, func); |
| 545 | |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 546 | #ifdef CONFIG_QOM_CAST_DEBUG |
| 547 | int i; |
| 548 | |
Peter Crosthwaite | 9d6a3d5 | 2013-06-18 19:18:59 +1000 | [diff] [blame] | 549 | for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 550 | if (class->cast_cache[i] == typename) { |
| 551 | ret = class; |
| 552 | goto out; |
| 553 | } |
| 554 | } |
| 555 | #else |
Peter Crosthwaite | 9d6a3d5 | 2013-06-18 19:18:59 +1000 | [diff] [blame] | 556 | if (!class || !class->interfaces) { |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 557 | return class; |
| 558 | } |
| 559 | #endif |
| 560 | |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 561 | ret = object_class_dynamic_cast(class, typename); |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 562 | if (!ret && class) { |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 563 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
| 564 | file, line, func, class, typename); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 565 | abort(); |
| 566 | } |
| 567 | |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 568 | #ifdef CONFIG_QOM_CAST_DEBUG |
Peter Crosthwaite | 9d6a3d5 | 2013-06-18 19:18:59 +1000 | [diff] [blame] | 569 | if (class && ret == class) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 570 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
| 571 | class->cast_cache[i - 1] = class->cast_cache[i]; |
| 572 | } |
| 573 | class->cast_cache[i - 1] = typename; |
| 574 | } |
| 575 | out: |
| 576 | #endif |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 577 | return ret; |
| 578 | } |
| 579 | |
| 580 | const char *object_get_typename(Object *obj) |
| 581 | { |
| 582 | return obj->class->type->name; |
| 583 | } |
| 584 | |
| 585 | ObjectClass *object_get_class(Object *obj) |
| 586 | { |
| 587 | return obj->class; |
| 588 | } |
| 589 | |
Andreas Färber | 1786237 | 2013-01-23 12:20:18 +0100 | [diff] [blame] | 590 | bool object_class_is_abstract(ObjectClass *klass) |
| 591 | { |
| 592 | return klass->type->abstract; |
| 593 | } |
| 594 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 595 | const char *object_class_get_name(ObjectClass *klass) |
| 596 | { |
| 597 | return klass->type->name; |
| 598 | } |
| 599 | |
| 600 | ObjectClass *object_class_by_name(const char *typename) |
| 601 | { |
| 602 | TypeImpl *type = type_get_by_name(typename); |
| 603 | |
| 604 | if (!type) { |
| 605 | return NULL; |
| 606 | } |
| 607 | |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 608 | type_initialize(type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 609 | |
| 610 | return type->class; |
| 611 | } |
| 612 | |
Paolo Bonzini | e7cce67 | 2012-05-02 13:30:54 +0200 | [diff] [blame] | 613 | ObjectClass *object_class_get_parent(ObjectClass *class) |
| 614 | { |
| 615 | TypeImpl *type = type_get_parent(class->type); |
| 616 | |
| 617 | if (!type) { |
| 618 | return NULL; |
| 619 | } |
| 620 | |
| 621 | type_initialize(type); |
| 622 | |
| 623 | return type->class; |
| 624 | } |
| 625 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 626 | typedef struct OCFData |
| 627 | { |
| 628 | void (*fn)(ObjectClass *klass, void *opaque); |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 629 | const char *implements_type; |
| 630 | bool include_abstract; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 631 | void *opaque; |
| 632 | } OCFData; |
| 633 | |
| 634 | static void object_class_foreach_tramp(gpointer key, gpointer value, |
| 635 | gpointer opaque) |
| 636 | { |
| 637 | OCFData *data = opaque; |
| 638 | TypeImpl *type = value; |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 639 | ObjectClass *k; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 640 | |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 641 | type_initialize(type); |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 642 | k = type->class; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 643 | |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 644 | if (!data->include_abstract && type->abstract) { |
| 645 | return; |
| 646 | } |
| 647 | |
| 648 | if (data->implements_type && |
| 649 | !object_class_dynamic_cast(k, data->implements_type)) { |
| 650 | return; |
| 651 | } |
| 652 | |
| 653 | data->fn(k, data->opaque); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 654 | } |
| 655 | |
| 656 | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 657 | const char *implements_type, bool include_abstract, |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 658 | void *opaque) |
| 659 | { |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 660 | OCFData data = { fn, implements_type, include_abstract, opaque }; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 661 | |
| 662 | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
| 663 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 664 | |
Paolo Bonzini | 32efc53 | 2012-04-11 23:30:20 +0200 | [diff] [blame] | 665 | int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque), |
| 666 | void *opaque) |
| 667 | { |
| 668 | ObjectProperty *prop; |
| 669 | int ret = 0; |
| 670 | |
| 671 | QTAILQ_FOREACH(prop, &obj->properties, node) { |
| 672 | if (object_property_is_child(prop)) { |
| 673 | ret = fn(prop->opaque, opaque); |
| 674 | if (ret != 0) { |
| 675 | break; |
| 676 | } |
| 677 | } |
| 678 | } |
| 679 | return ret; |
| 680 | } |
| 681 | |
Andreas Färber | 418ba9e | 2012-02-25 23:07:34 +0100 | [diff] [blame] | 682 | static void object_class_get_list_tramp(ObjectClass *klass, void *opaque) |
| 683 | { |
| 684 | GSList **list = opaque; |
| 685 | |
| 686 | *list = g_slist_prepend(*list, klass); |
| 687 | } |
| 688 | |
| 689 | GSList *object_class_get_list(const char *implements_type, |
| 690 | bool include_abstract) |
| 691 | { |
| 692 | GSList *list = NULL; |
| 693 | |
| 694 | object_class_foreach(object_class_get_list_tramp, |
| 695 | implements_type, include_abstract, &list); |
| 696 | return list; |
| 697 | } |
| 698 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 699 | void object_ref(Object *obj) |
| 700 | { |
Jan Kiszka | f08c03f | 2013-07-02 11:36:39 +0200 | [diff] [blame] | 701 | atomic_inc(&obj->ref); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 702 | } |
| 703 | |
| 704 | void object_unref(Object *obj) |
| 705 | { |
| 706 | g_assert(obj->ref > 0); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 707 | |
| 708 | /* parent always holds a reference to its children */ |
Jan Kiszka | f08c03f | 2013-07-02 11:36:39 +0200 | [diff] [blame] | 709 | if (atomic_fetch_dec(&obj->ref) == 1) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 710 | object_finalize(obj); |
| 711 | } |
| 712 | } |
| 713 | |
| 714 | void object_property_add(Object *obj, const char *name, const char *type, |
| 715 | ObjectPropertyAccessor *get, |
| 716 | ObjectPropertyAccessor *set, |
| 717 | ObjectPropertyRelease *release, |
| 718 | void *opaque, Error **errp) |
| 719 | { |
Peter Maydell | 54852b0 | 2013-03-25 13:15:13 +0000 | [diff] [blame] | 720 | ObjectProperty *prop; |
| 721 | |
| 722 | QTAILQ_FOREACH(prop, &obj->properties, node) { |
| 723 | if (strcmp(prop->name, name) == 0) { |
| 724 | error_setg(errp, "attempt to add duplicate property '%s'" |
| 725 | " to object (type '%s')", name, |
| 726 | object_get_typename(obj)); |
| 727 | return; |
| 728 | } |
| 729 | } |
| 730 | |
| 731 | prop = g_malloc0(sizeof(*prop)); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 732 | |
| 733 | prop->name = g_strdup(name); |
| 734 | prop->type = g_strdup(type); |
| 735 | |
| 736 | prop->get = get; |
| 737 | prop->set = set; |
| 738 | prop->release = release; |
| 739 | prop->opaque = opaque; |
| 740 | |
| 741 | QTAILQ_INSERT_TAIL(&obj->properties, prop, node); |
| 742 | } |
| 743 | |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 744 | ObjectProperty *object_property_find(Object *obj, const char *name, |
| 745 | Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 746 | { |
| 747 | ObjectProperty *prop; |
| 748 | |
| 749 | QTAILQ_FOREACH(prop, &obj->properties, node) { |
| 750 | if (strcmp(prop->name, name) == 0) { |
| 751 | return prop; |
| 752 | } |
| 753 | } |
| 754 | |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 755 | error_set(errp, QERR_PROPERTY_NOT_FOUND, "", name); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 756 | return NULL; |
| 757 | } |
| 758 | |
| 759 | void object_property_del(Object *obj, const char *name, Error **errp) |
| 760 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 761 | ObjectProperty *prop = object_property_find(obj, name, errp); |
Anthony Liguori | 0866aca | 2011-12-23 15:34:39 -0600 | [diff] [blame] | 762 | if (prop == NULL) { |
Anthony Liguori | 0866aca | 2011-12-23 15:34:39 -0600 | [diff] [blame] | 763 | return; |
| 764 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 765 | |
Anthony Liguori | 0866aca | 2011-12-23 15:34:39 -0600 | [diff] [blame] | 766 | if (prop->release) { |
| 767 | prop->release(obj, name, prop->opaque); |
| 768 | } |
| 769 | |
| 770 | QTAILQ_REMOVE(&obj->properties, prop, node); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 771 | |
| 772 | g_free(prop->name); |
| 773 | g_free(prop->type); |
| 774 | g_free(prop); |
| 775 | } |
| 776 | |
| 777 | void object_property_get(Object *obj, Visitor *v, const char *name, |
| 778 | Error **errp) |
| 779 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 780 | ObjectProperty *prop = object_property_find(obj, name, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 781 | if (prop == NULL) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 782 | return; |
| 783 | } |
| 784 | |
| 785 | if (!prop->get) { |
| 786 | error_set(errp, QERR_PERMISSION_DENIED); |
| 787 | } else { |
| 788 | prop->get(obj, v, prop->opaque, name, errp); |
| 789 | } |
| 790 | } |
| 791 | |
| 792 | void object_property_set(Object *obj, Visitor *v, const char *name, |
| 793 | Error **errp) |
| 794 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 795 | ObjectProperty *prop = object_property_find(obj, name, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 796 | if (prop == NULL) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 797 | return; |
| 798 | } |
| 799 | |
| 800 | if (!prop->set) { |
| 801 | error_set(errp, QERR_PERMISSION_DENIED); |
| 802 | } else { |
| 803 | prop->set(obj, v, prop->opaque, name, errp); |
| 804 | } |
| 805 | } |
| 806 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 807 | void object_property_set_str(Object *obj, const char *value, |
| 808 | const char *name, Error **errp) |
| 809 | { |
| 810 | QString *qstr = qstring_from_str(value); |
| 811 | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); |
| 812 | |
| 813 | QDECREF(qstr); |
| 814 | } |
| 815 | |
| 816 | char *object_property_get_str(Object *obj, const char *name, |
| 817 | Error **errp) |
| 818 | { |
| 819 | QObject *ret = object_property_get_qobject(obj, name, errp); |
| 820 | QString *qstring; |
| 821 | char *retval; |
| 822 | |
| 823 | if (!ret) { |
| 824 | return NULL; |
| 825 | } |
| 826 | qstring = qobject_to_qstring(ret); |
| 827 | if (!qstring) { |
| 828 | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "string"); |
| 829 | retval = NULL; |
| 830 | } else { |
| 831 | retval = g_strdup(qstring_get_str(qstring)); |
| 832 | } |
| 833 | |
| 834 | QDECREF(qstring); |
| 835 | return retval; |
| 836 | } |
| 837 | |
Paolo Bonzini | 1d9c5a1 | 2012-02-02 10:51:57 +0100 | [diff] [blame] | 838 | void object_property_set_link(Object *obj, Object *value, |
| 839 | const char *name, Error **errp) |
| 840 | { |
| 841 | object_property_set_str(obj, object_get_canonical_path(value), |
| 842 | name, errp); |
| 843 | } |
| 844 | |
| 845 | Object *object_property_get_link(Object *obj, const char *name, |
| 846 | Error **errp) |
| 847 | { |
| 848 | char *str = object_property_get_str(obj, name, errp); |
| 849 | Object *target = NULL; |
| 850 | |
| 851 | if (str && *str) { |
| 852 | target = object_resolve_path(str, NULL); |
| 853 | if (!target) { |
| 854 | error_set(errp, QERR_DEVICE_NOT_FOUND, str); |
| 855 | } |
| 856 | } |
| 857 | |
| 858 | g_free(str); |
| 859 | return target; |
| 860 | } |
| 861 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 862 | void object_property_set_bool(Object *obj, bool value, |
| 863 | const char *name, Error **errp) |
| 864 | { |
| 865 | QBool *qbool = qbool_from_int(value); |
| 866 | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
| 867 | |
| 868 | QDECREF(qbool); |
| 869 | } |
| 870 | |
| 871 | bool object_property_get_bool(Object *obj, const char *name, |
| 872 | Error **errp) |
| 873 | { |
| 874 | QObject *ret = object_property_get_qobject(obj, name, errp); |
| 875 | QBool *qbool; |
| 876 | bool retval; |
| 877 | |
| 878 | if (!ret) { |
| 879 | return false; |
| 880 | } |
| 881 | qbool = qobject_to_qbool(ret); |
| 882 | if (!qbool) { |
| 883 | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean"); |
| 884 | retval = false; |
| 885 | } else { |
| 886 | retval = qbool_get_int(qbool); |
| 887 | } |
| 888 | |
| 889 | QDECREF(qbool); |
| 890 | return retval; |
| 891 | } |
| 892 | |
| 893 | void object_property_set_int(Object *obj, int64_t value, |
| 894 | const char *name, Error **errp) |
| 895 | { |
| 896 | QInt *qint = qint_from_int(value); |
| 897 | object_property_set_qobject(obj, QOBJECT(qint), name, errp); |
| 898 | |
| 899 | QDECREF(qint); |
| 900 | } |
| 901 | |
| 902 | int64_t object_property_get_int(Object *obj, const char *name, |
| 903 | Error **errp) |
| 904 | { |
| 905 | QObject *ret = object_property_get_qobject(obj, name, errp); |
| 906 | QInt *qint; |
| 907 | int64_t retval; |
| 908 | |
| 909 | if (!ret) { |
| 910 | return -1; |
| 911 | } |
| 912 | qint = qobject_to_qint(ret); |
| 913 | if (!qint) { |
| 914 | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, "int"); |
| 915 | retval = -1; |
| 916 | } else { |
| 917 | retval = qint_get_int(qint); |
| 918 | } |
| 919 | |
| 920 | QDECREF(qint); |
| 921 | return retval; |
| 922 | } |
| 923 | |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 924 | void object_property_parse(Object *obj, const char *string, |
| 925 | const char *name, Error **errp) |
| 926 | { |
| 927 | StringInputVisitor *mi; |
| 928 | mi = string_input_visitor_new(string); |
| 929 | object_property_set(obj, string_input_get_visitor(mi), name, errp); |
| 930 | |
| 931 | string_input_visitor_cleanup(mi); |
| 932 | } |
| 933 | |
| 934 | char *object_property_print(Object *obj, const char *name, |
| 935 | Error **errp) |
| 936 | { |
| 937 | StringOutputVisitor *mo; |
| 938 | char *string; |
| 939 | |
| 940 | mo = string_output_visitor_new(); |
Paolo Bonzini | 8185bfc | 2012-05-02 13:31:00 +0200 | [diff] [blame] | 941 | object_property_get(obj, string_output_get_visitor(mo), name, errp); |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 942 | string = string_output_get_string(mo); |
| 943 | string_output_visitor_cleanup(mo); |
| 944 | return string; |
| 945 | } |
| 946 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 947 | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
| 948 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 949 | ObjectProperty *prop = object_property_find(obj, name, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 950 | if (prop == NULL) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 951 | return NULL; |
| 952 | } |
| 953 | |
| 954 | return prop->type; |
| 955 | } |
| 956 | |
| 957 | Object *object_get_root(void) |
| 958 | { |
Anthony Liguori | 8b45d44 | 2011-12-23 09:08:05 -0600 | [diff] [blame] | 959 | static Object *root; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 960 | |
Anthony Liguori | 8b45d44 | 2011-12-23 09:08:05 -0600 | [diff] [blame] | 961 | if (!root) { |
| 962 | root = object_new("container"); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 963 | } |
| 964 | |
Anthony Liguori | 8b45d44 | 2011-12-23 09:08:05 -0600 | [diff] [blame] | 965 | return root; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 966 | } |
| 967 | |
| 968 | static void object_get_child_property(Object *obj, Visitor *v, void *opaque, |
| 969 | const char *name, Error **errp) |
| 970 | { |
| 971 | Object *child = opaque; |
| 972 | gchar *path; |
| 973 | |
| 974 | path = object_get_canonical_path(child); |
| 975 | visit_type_str(v, &path, name, errp); |
| 976 | g_free(path); |
| 977 | } |
| 978 | |
Anthony Liguori | db85b57 | 2011-12-23 08:47:39 -0600 | [diff] [blame] | 979 | static void object_finalize_child_property(Object *obj, const char *name, |
| 980 | void *opaque) |
| 981 | { |
| 982 | Object *child = opaque; |
| 983 | |
| 984 | object_unref(child); |
| 985 | } |
| 986 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 987 | void object_property_add_child(Object *obj, const char *name, |
| 988 | Object *child, Error **errp) |
| 989 | { |
| 990 | gchar *type; |
| 991 | |
| 992 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
| 993 | |
| 994 | object_property_add(obj, name, type, object_get_child_property, |
Anthony Liguori | db85b57 | 2011-12-23 08:47:39 -0600 | [diff] [blame] | 995 | NULL, object_finalize_child_property, child, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 996 | |
| 997 | object_ref(child); |
| 998 | g_assert(child->parent == NULL); |
| 999 | child->parent = obj; |
| 1000 | |
| 1001 | g_free(type); |
| 1002 | } |
| 1003 | |
| 1004 | static void object_get_link_property(Object *obj, Visitor *v, void *opaque, |
| 1005 | const char *name, Error **errp) |
| 1006 | { |
| 1007 | Object **child = opaque; |
| 1008 | gchar *path; |
| 1009 | |
| 1010 | if (*child) { |
| 1011 | path = object_get_canonical_path(*child); |
| 1012 | visit_type_str(v, &path, name, errp); |
| 1013 | g_free(path); |
| 1014 | } else { |
| 1015 | path = (gchar *)""; |
| 1016 | visit_type_str(v, &path, name, errp); |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | static void object_set_link_property(Object *obj, Visitor *v, void *opaque, |
| 1021 | const char *name, Error **errp) |
| 1022 | { |
| 1023 | Object **child = opaque; |
Alexander Barabash | f0cdc96 | 2012-02-22 19:22:26 +0200 | [diff] [blame] | 1024 | Object *old_target; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1025 | bool ambiguous = false; |
| 1026 | const char *type; |
| 1027 | char *path; |
Paolo Bonzini | 11e35bf | 2012-02-02 12:37:53 +0100 | [diff] [blame] | 1028 | gchar *target_type; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1029 | |
| 1030 | type = object_property_get_type(obj, name, NULL); |
| 1031 | |
| 1032 | visit_type_str(v, &path, name, errp); |
| 1033 | |
Alexander Barabash | f0cdc96 | 2012-02-22 19:22:26 +0200 | [diff] [blame] | 1034 | old_target = *child; |
| 1035 | *child = NULL; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1036 | |
| 1037 | if (strcmp(path, "") != 0) { |
| 1038 | Object *target; |
| 1039 | |
Paolo Bonzini | 11e35bf | 2012-02-02 12:37:53 +0100 | [diff] [blame] | 1040 | /* Go from link<FOO> to FOO. */ |
| 1041 | target_type = g_strndup(&type[5], strlen(type) - 6); |
| 1042 | target = object_resolve_path_type(path, target_type, &ambiguous); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1043 | |
Paolo Bonzini | 11e35bf | 2012-02-02 12:37:53 +0100 | [diff] [blame] | 1044 | if (ambiguous) { |
| 1045 | error_set(errp, QERR_AMBIGUOUS_PATH, path); |
| 1046 | } else if (target) { |
| 1047 | object_ref(target); |
| 1048 | *child = target; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1049 | } else { |
Paolo Bonzini | 11e35bf | 2012-02-02 12:37:53 +0100 | [diff] [blame] | 1050 | target = object_resolve_path(path, &ambiguous); |
| 1051 | if (target || ambiguous) { |
| 1052 | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
| 1053 | } else { |
| 1054 | error_set(errp, QERR_DEVICE_NOT_FOUND, path); |
| 1055 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1056 | } |
Paolo Bonzini | 11e35bf | 2012-02-02 12:37:53 +0100 | [diff] [blame] | 1057 | g_free(target_type); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1058 | } |
| 1059 | |
| 1060 | g_free(path); |
Alexander Barabash | f0cdc96 | 2012-02-22 19:22:26 +0200 | [diff] [blame] | 1061 | |
| 1062 | if (old_target != NULL) { |
| 1063 | object_unref(old_target); |
| 1064 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1065 | } |
| 1066 | |
| 1067 | void object_property_add_link(Object *obj, const char *name, |
| 1068 | const char *type, Object **child, |
| 1069 | Error **errp) |
| 1070 | { |
| 1071 | gchar *full_type; |
| 1072 | |
| 1073 | full_type = g_strdup_printf("link<%s>", type); |
| 1074 | |
| 1075 | object_property_add(obj, name, full_type, |
| 1076 | object_get_link_property, |
| 1077 | object_set_link_property, |
| 1078 | NULL, child, errp); |
| 1079 | |
| 1080 | g_free(full_type); |
| 1081 | } |
| 1082 | |
| 1083 | gchar *object_get_canonical_path(Object *obj) |
| 1084 | { |
| 1085 | Object *root = object_get_root(); |
| 1086 | char *newpath = NULL, *path = NULL; |
| 1087 | |
| 1088 | while (obj != root) { |
| 1089 | ObjectProperty *prop = NULL; |
| 1090 | |
| 1091 | g_assert(obj->parent != NULL); |
| 1092 | |
| 1093 | QTAILQ_FOREACH(prop, &obj->parent->properties, node) { |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 1094 | if (!object_property_is_child(prop)) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1095 | continue; |
| 1096 | } |
| 1097 | |
| 1098 | if (prop->opaque == obj) { |
| 1099 | if (path) { |
| 1100 | newpath = g_strdup_printf("%s/%s", prop->name, path); |
| 1101 | g_free(path); |
| 1102 | path = newpath; |
| 1103 | } else { |
| 1104 | path = g_strdup(prop->name); |
| 1105 | } |
| 1106 | break; |
| 1107 | } |
| 1108 | } |
| 1109 | |
| 1110 | g_assert(prop != NULL); |
| 1111 | |
| 1112 | obj = obj->parent; |
| 1113 | } |
| 1114 | |
| 1115 | newpath = g_strdup_printf("/%s", path); |
| 1116 | g_free(path); |
| 1117 | |
| 1118 | return newpath; |
| 1119 | } |
| 1120 | |
Andreas Färber | 3e84b48 | 2013-01-15 02:55:10 +0100 | [diff] [blame] | 1121 | Object *object_resolve_path_component(Object *parent, const gchar *part) |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1122 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 1123 | ObjectProperty *prop = object_property_find(parent, part, NULL); |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1124 | if (prop == NULL) { |
| 1125 | return NULL; |
| 1126 | } |
| 1127 | |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 1128 | if (object_property_is_link(prop)) { |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1129 | return *(Object **)prop->opaque; |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 1130 | } else if (object_property_is_child(prop)) { |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1131 | return prop->opaque; |
| 1132 | } else { |
| 1133 | return NULL; |
| 1134 | } |
| 1135 | } |
| 1136 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1137 | static Object *object_resolve_abs_path(Object *parent, |
| 1138 | gchar **parts, |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1139 | const char *typename, |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1140 | int index) |
| 1141 | { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1142 | Object *child; |
| 1143 | |
| 1144 | if (parts[index] == NULL) { |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1145 | return object_dynamic_cast(parent, typename); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1146 | } |
| 1147 | |
| 1148 | if (strcmp(parts[index], "") == 0) { |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1149 | return object_resolve_abs_path(parent, parts, typename, index + 1); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1150 | } |
| 1151 | |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1152 | child = object_resolve_path_component(parent, parts[index]); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1153 | if (!child) { |
| 1154 | return NULL; |
| 1155 | } |
| 1156 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1157 | return object_resolve_abs_path(child, parts, typename, index + 1); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1158 | } |
| 1159 | |
| 1160 | static Object *object_resolve_partial_path(Object *parent, |
| 1161 | gchar **parts, |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1162 | const char *typename, |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1163 | bool *ambiguous) |
| 1164 | { |
| 1165 | Object *obj; |
| 1166 | ObjectProperty *prop; |
| 1167 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1168 | obj = object_resolve_abs_path(parent, parts, typename, 0); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1169 | |
| 1170 | QTAILQ_FOREACH(prop, &parent->properties, node) { |
| 1171 | Object *found; |
| 1172 | |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 1173 | if (!object_property_is_child(prop)) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1174 | continue; |
| 1175 | } |
| 1176 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1177 | found = object_resolve_partial_path(prop->opaque, parts, |
| 1178 | typename, ambiguous); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1179 | if (found) { |
| 1180 | if (obj) { |
| 1181 | if (ambiguous) { |
| 1182 | *ambiguous = true; |
| 1183 | } |
| 1184 | return NULL; |
| 1185 | } |
| 1186 | obj = found; |
| 1187 | } |
| 1188 | |
| 1189 | if (ambiguous && *ambiguous) { |
| 1190 | return NULL; |
| 1191 | } |
| 1192 | } |
| 1193 | |
| 1194 | return obj; |
| 1195 | } |
| 1196 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1197 | Object *object_resolve_path_type(const char *path, const char *typename, |
| 1198 | bool *ambiguous) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1199 | { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1200 | Object *obj; |
| 1201 | gchar **parts; |
| 1202 | |
| 1203 | parts = g_strsplit(path, "/", 0); |
Paolo Bonzini | 2e1103f | 2013-04-18 18:44:02 +0200 | [diff] [blame] | 1204 | assert(parts); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1205 | |
Paolo Bonzini | 2e1103f | 2013-04-18 18:44:02 +0200 | [diff] [blame] | 1206 | if (parts[0] == NULL || strcmp(parts[0], "") != 0) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1207 | if (ambiguous) { |
| 1208 | *ambiguous = false; |
| 1209 | } |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1210 | obj = object_resolve_partial_path(object_get_root(), parts, |
| 1211 | typename, ambiguous); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1212 | } else { |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1213 | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1214 | } |
| 1215 | |
| 1216 | g_strfreev(parts); |
| 1217 | |
| 1218 | return obj; |
| 1219 | } |
| 1220 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1221 | Object *object_resolve_path(const char *path, bool *ambiguous) |
| 1222 | { |
| 1223 | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous); |
| 1224 | } |
| 1225 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1226 | typedef struct StringProperty |
| 1227 | { |
| 1228 | char *(*get)(Object *, Error **); |
| 1229 | void (*set)(Object *, const char *, Error **); |
| 1230 | } StringProperty; |
| 1231 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1232 | static void property_get_str(Object *obj, Visitor *v, void *opaque, |
| 1233 | const char *name, Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1234 | { |
| 1235 | StringProperty *prop = opaque; |
| 1236 | char *value; |
| 1237 | |
| 1238 | value = prop->get(obj, errp); |
| 1239 | if (value) { |
| 1240 | visit_type_str(v, &value, name, errp); |
| 1241 | g_free(value); |
| 1242 | } |
| 1243 | } |
| 1244 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1245 | static void property_set_str(Object *obj, Visitor *v, void *opaque, |
| 1246 | const char *name, Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1247 | { |
| 1248 | StringProperty *prop = opaque; |
| 1249 | char *value; |
| 1250 | Error *local_err = NULL; |
| 1251 | |
| 1252 | visit_type_str(v, &value, name, &local_err); |
| 1253 | if (local_err) { |
| 1254 | error_propagate(errp, local_err); |
| 1255 | return; |
| 1256 | } |
| 1257 | |
| 1258 | prop->set(obj, value, errp); |
| 1259 | g_free(value); |
| 1260 | } |
| 1261 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1262 | static void property_release_str(Object *obj, const char *name, |
| 1263 | void *opaque) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1264 | { |
| 1265 | StringProperty *prop = opaque; |
| 1266 | g_free(prop); |
| 1267 | } |
| 1268 | |
| 1269 | void object_property_add_str(Object *obj, const char *name, |
| 1270 | char *(*get)(Object *, Error **), |
| 1271 | void (*set)(Object *, const char *, Error **), |
| 1272 | Error **errp) |
| 1273 | { |
| 1274 | StringProperty *prop = g_malloc0(sizeof(*prop)); |
| 1275 | |
| 1276 | prop->get = get; |
| 1277 | prop->set = set; |
| 1278 | |
| 1279 | object_property_add(obj, name, "string", |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1280 | get ? property_get_str : NULL, |
| 1281 | set ? property_set_str : NULL, |
| 1282 | property_release_str, |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1283 | prop, errp); |
| 1284 | } |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 1285 | |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 1286 | typedef struct BoolProperty |
| 1287 | { |
| 1288 | bool (*get)(Object *, Error **); |
| 1289 | void (*set)(Object *, bool, Error **); |
| 1290 | } BoolProperty; |
| 1291 | |
| 1292 | static void property_get_bool(Object *obj, Visitor *v, void *opaque, |
| 1293 | const char *name, Error **errp) |
| 1294 | { |
| 1295 | BoolProperty *prop = opaque; |
| 1296 | bool value; |
| 1297 | |
| 1298 | value = prop->get(obj, errp); |
| 1299 | visit_type_bool(v, &value, name, errp); |
| 1300 | } |
| 1301 | |
| 1302 | static void property_set_bool(Object *obj, Visitor *v, void *opaque, |
| 1303 | const char *name, Error **errp) |
| 1304 | { |
| 1305 | BoolProperty *prop = opaque; |
| 1306 | bool value; |
| 1307 | Error *local_err = NULL; |
| 1308 | |
| 1309 | visit_type_bool(v, &value, name, &local_err); |
| 1310 | if (local_err) { |
| 1311 | error_propagate(errp, local_err); |
| 1312 | return; |
| 1313 | } |
| 1314 | |
| 1315 | prop->set(obj, value, errp); |
| 1316 | } |
| 1317 | |
| 1318 | static void property_release_bool(Object *obj, const char *name, |
| 1319 | void *opaque) |
| 1320 | { |
| 1321 | BoolProperty *prop = opaque; |
| 1322 | g_free(prop); |
| 1323 | } |
| 1324 | |
| 1325 | void object_property_add_bool(Object *obj, const char *name, |
| 1326 | bool (*get)(Object *, Error **), |
| 1327 | void (*set)(Object *, bool, Error **), |
| 1328 | Error **errp) |
| 1329 | { |
| 1330 | BoolProperty *prop = g_malloc0(sizeof(*prop)); |
| 1331 | |
| 1332 | prop->get = get; |
| 1333 | prop->set = set; |
| 1334 | |
| 1335 | object_property_add(obj, name, "bool", |
| 1336 | get ? property_get_bool : NULL, |
| 1337 | set ? property_set_bool : NULL, |
| 1338 | property_release_bool, |
| 1339 | prop, errp); |
| 1340 | } |
| 1341 | |
Paolo Bonzini | 2f262e0 | 2012-04-02 17:33:51 +0200 | [diff] [blame] | 1342 | static char *qdev_get_type(Object *obj, Error **errp) |
| 1343 | { |
| 1344 | return g_strdup(object_get_typename(obj)); |
| 1345 | } |
| 1346 | |
| 1347 | static void object_instance_init(Object *obj) |
| 1348 | { |
| 1349 | object_property_add_str(obj, "type", qdev_get_type, NULL, NULL); |
| 1350 | } |
| 1351 | |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 1352 | static void register_types(void) |
| 1353 | { |
| 1354 | static TypeInfo interface_info = { |
| 1355 | .name = TYPE_INTERFACE, |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 1356 | .class_size = sizeof(InterfaceClass), |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 1357 | .abstract = true, |
| 1358 | }; |
| 1359 | |
| 1360 | static TypeInfo object_info = { |
| 1361 | .name = TYPE_OBJECT, |
| 1362 | .instance_size = sizeof(Object), |
Paolo Bonzini | 2f262e0 | 2012-04-02 17:33:51 +0200 | [diff] [blame] | 1363 | .instance_init = object_instance_init, |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 1364 | .abstract = true, |
| 1365 | }; |
| 1366 | |
Paolo Bonzini | 049cb3c | 2012-04-04 15:58:40 +0200 | [diff] [blame] | 1367 | type_interface = type_register_internal(&interface_info); |
| 1368 | type_register_internal(&object_info); |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 1369 | } |
| 1370 | |
| 1371 | type_init(register_types) |