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 | |
Peter Maydell | 9bbc853 | 2016-01-29 17:50:02 +0000 | [diff] [blame] | 13 | #include "qemu/osdep.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 14 | #include "qapi/error.h" |
Paolo Bonzini | 14cccb6 | 2012-12-17 18:19:50 +0100 | [diff] [blame] | 15 | #include "qom/object.h" |
Daniel P. Berrange | a31bdae | 2015-05-13 17:14:06 +0100 | [diff] [blame] | 16 | #include "qom/object_interfaces.h" |
Veronia Bahaa | f348b6d | 2016-03-20 19:16:19 +0200 | [diff] [blame] | 17 | #include "qemu/cutils.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 18 | #include "qapi/visitor.h" |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 19 | #include "qapi/string-input-visitor.h" |
| 20 | #include "qapi/string-output-visitor.h" |
Markus Armbruster | eb815e2 | 2018-02-11 10:36:05 +0100 | [diff] [blame] | 21 | #include "qapi/qapi-builtin-visit.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 22 | #include "qapi/qmp/qerror.h" |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 23 | #include "trace.h" |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 24 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 25 | /* TODO: replace QObject with a simpler visitor to avoid a dependency |
| 26 | * of the QOM core on QObject? */ |
Paolo Bonzini | 14cccb6 | 2012-12-17 18:19:50 +0100 | [diff] [blame] | 27 | #include "qom/qom-qobject.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 28 | #include "qapi/qmp/qbool.h" |
Markus Armbruster | 15280c3 | 2018-02-01 12:18:36 +0100 | [diff] [blame] | 29 | #include "qapi/qmp/qnum.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 30 | #include "qapi/qmp/qstring.h" |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 31 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 32 | #define MAX_INTERFACES 32 |
| 33 | |
| 34 | typedef struct InterfaceImpl InterfaceImpl; |
| 35 | typedef struct TypeImpl TypeImpl; |
| 36 | |
| 37 | struct InterfaceImpl |
| 38 | { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 39 | const char *typename; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 40 | }; |
| 41 | |
| 42 | struct TypeImpl |
| 43 | { |
| 44 | const char *name; |
| 45 | |
| 46 | size_t class_size; |
| 47 | |
| 48 | size_t instance_size; |
| 49 | |
| 50 | void (*class_init)(ObjectClass *klass, void *data); |
Paolo Bonzini | 3b50e31 | 2012-05-02 13:30:55 +0200 | [diff] [blame] | 51 | void (*class_base_init)(ObjectClass *klass, void *data); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 52 | void (*class_finalize)(ObjectClass *klass, void *data); |
| 53 | |
| 54 | void *class_data; |
| 55 | |
| 56 | void (*instance_init)(Object *obj); |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 57 | void (*instance_post_init)(Object *obj); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 58 | void (*instance_finalize)(Object *obj); |
| 59 | |
| 60 | bool abstract; |
| 61 | |
| 62 | const char *parent; |
| 63 | TypeImpl *parent_type; |
| 64 | |
| 65 | ObjectClass *class; |
| 66 | |
| 67 | int num_interfaces; |
| 68 | InterfaceImpl interfaces[MAX_INTERFACES]; |
| 69 | }; |
| 70 | |
Paolo Bonzini | 9970bd8 | 2012-02-03 11:51:39 +0100 | [diff] [blame] | 71 | static Type type_interface; |
| 72 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 73 | static GHashTable *type_table_get(void) |
| 74 | { |
| 75 | static GHashTable *type_table; |
| 76 | |
| 77 | if (type_table == NULL) { |
| 78 | type_table = g_hash_table_new(g_str_hash, g_str_equal); |
| 79 | } |
| 80 | |
| 81 | return type_table; |
| 82 | } |
| 83 | |
Hervé Poussineau | f54c19c | 2013-12-03 16:42:00 +0100 | [diff] [blame] | 84 | static bool enumerating_types; |
| 85 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 86 | static void type_table_add(TypeImpl *ti) |
| 87 | { |
Hervé Poussineau | f54c19c | 2013-12-03 16:42:00 +0100 | [diff] [blame] | 88 | assert(!enumerating_types); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 89 | g_hash_table_insert(type_table_get(), (void *)ti->name, ti); |
| 90 | } |
| 91 | |
| 92 | static TypeImpl *type_table_lookup(const char *name) |
| 93 | { |
| 94 | return g_hash_table_lookup(type_table_get(), name); |
| 95 | } |
| 96 | |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 97 | static TypeImpl *type_new(const TypeInfo *info) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 98 | { |
| 99 | TypeImpl *ti = g_malloc0(sizeof(*ti)); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 100 | int i; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 101 | |
| 102 | g_assert(info->name != NULL); |
| 103 | |
Anthony Liguori | 7309335 | 2012-01-25 13:37:36 -0600 | [diff] [blame] | 104 | if (type_table_lookup(info->name) != NULL) { |
| 105 | fprintf(stderr, "Registering `%s' which already exists\n", info->name); |
| 106 | abort(); |
| 107 | } |
| 108 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 109 | ti->name = g_strdup(info->name); |
| 110 | ti->parent = g_strdup(info->parent); |
| 111 | |
| 112 | ti->class_size = info->class_size; |
| 113 | ti->instance_size = info->instance_size; |
| 114 | |
| 115 | ti->class_init = info->class_init; |
Paolo Bonzini | 3b50e31 | 2012-05-02 13:30:55 +0200 | [diff] [blame] | 116 | ti->class_base_init = info->class_base_init; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 117 | ti->class_finalize = info->class_finalize; |
| 118 | ti->class_data = info->class_data; |
| 119 | |
| 120 | ti->instance_init = info->instance_init; |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 121 | ti->instance_post_init = info->instance_post_init; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 122 | ti->instance_finalize = info->instance_finalize; |
| 123 | |
| 124 | ti->abstract = info->abstract; |
| 125 | |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 126 | for (i = 0; info->interfaces && info->interfaces[i].type; i++) { |
| 127 | ti->interfaces[i].typename = g_strdup(info->interfaces[i].type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 128 | } |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 129 | ti->num_interfaces = i; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 130 | |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 131 | return ti; |
| 132 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 133 | |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 134 | static TypeImpl *type_register_internal(const TypeInfo *info) |
| 135 | { |
| 136 | TypeImpl *ti; |
| 137 | ti = type_new(info); |
| 138 | |
| 139 | type_table_add(ti); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 140 | return ti; |
| 141 | } |
| 142 | |
Paolo Bonzini | 049cb3c | 2012-04-04 15:58:40 +0200 | [diff] [blame] | 143 | TypeImpl *type_register(const TypeInfo *info) |
| 144 | { |
| 145 | assert(info->parent); |
| 146 | return type_register_internal(info); |
| 147 | } |
| 148 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 149 | TypeImpl *type_register_static(const TypeInfo *info) |
| 150 | { |
| 151 | return type_register(info); |
| 152 | } |
| 153 | |
Igor Mammedov | aa04c9d2 | 2017-10-09 21:50:49 +0200 | [diff] [blame] | 154 | void type_register_static_array(const TypeInfo *infos, int nr_infos) |
| 155 | { |
| 156 | int i; |
| 157 | |
| 158 | for (i = 0; i < nr_infos; i++) { |
| 159 | type_register_static(&infos[i]); |
| 160 | } |
| 161 | } |
| 162 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 163 | static TypeImpl *type_get_by_name(const char *name) |
| 164 | { |
| 165 | if (name == NULL) { |
| 166 | return NULL; |
| 167 | } |
| 168 | |
| 169 | return type_table_lookup(name); |
| 170 | } |
| 171 | |
| 172 | static TypeImpl *type_get_parent(TypeImpl *type) |
| 173 | { |
| 174 | if (!type->parent_type && type->parent) { |
| 175 | type->parent_type = type_get_by_name(type->parent); |
| 176 | g_assert(type->parent_type != NULL); |
| 177 | } |
| 178 | |
| 179 | return type->parent_type; |
| 180 | } |
| 181 | |
| 182 | static bool type_has_parent(TypeImpl *type) |
| 183 | { |
| 184 | return (type->parent != NULL); |
| 185 | } |
| 186 | |
| 187 | static size_t type_class_get_size(TypeImpl *ti) |
| 188 | { |
| 189 | if (ti->class_size) { |
| 190 | return ti->class_size; |
| 191 | } |
| 192 | |
| 193 | if (type_has_parent(ti)) { |
| 194 | return type_class_get_size(type_get_parent(ti)); |
| 195 | } |
| 196 | |
| 197 | return sizeof(ObjectClass); |
| 198 | } |
| 199 | |
Igor Mitsyanko | aca59af | 2012-02-28 15:57:10 +0400 | [diff] [blame] | 200 | static size_t type_object_get_size(TypeImpl *ti) |
| 201 | { |
| 202 | if (ti->instance_size) { |
| 203 | return ti->instance_size; |
| 204 | } |
| 205 | |
| 206 | if (type_has_parent(ti)) { |
| 207 | return type_object_get_size(type_get_parent(ti)); |
| 208 | } |
| 209 | |
| 210 | return 0; |
| 211 | } |
| 212 | |
Bharata B Rao | 3f97b53 | 2016-06-10 06:29:00 +0530 | [diff] [blame] | 213 | size_t object_type_get_instance_size(const char *typename) |
| 214 | { |
| 215 | TypeImpl *type = type_get_by_name(typename); |
| 216 | |
| 217 | g_assert(type != NULL); |
| 218 | return type_object_get_size(type); |
| 219 | } |
| 220 | |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 221 | static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 222 | { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 223 | assert(target_type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 224 | |
Cao jin | b30d805 | 2015-11-03 10:36:42 +0800 | [diff] [blame] | 225 | /* Check if target_type is a direct ancestor of type */ |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 226 | while (type) { |
| 227 | if (type == target_type) { |
| 228 | return true; |
| 229 | } |
| 230 | |
| 231 | type = type_get_parent(type); |
| 232 | } |
| 233 | |
| 234 | return false; |
| 235 | } |
| 236 | |
| 237 | static void type_initialize(TypeImpl *ti); |
| 238 | |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 239 | static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type, |
| 240 | TypeImpl *parent_type) |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 241 | { |
| 242 | InterfaceClass *new_iface; |
| 243 | TypeInfo info = { }; |
| 244 | TypeImpl *iface_impl; |
| 245 | |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 246 | info.parent = parent_type->name; |
| 247 | info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 248 | info.abstract = true; |
| 249 | |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 250 | iface_impl = type_new(&info); |
| 251 | iface_impl->parent_type = parent_type; |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 252 | type_initialize(iface_impl); |
| 253 | g_free((char *)info.name); |
| 254 | |
| 255 | new_iface = (InterfaceClass *)iface_impl->class; |
| 256 | new_iface->concrete_class = ti->class; |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 257 | new_iface->interface_type = interface_type; |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 258 | |
| 259 | ti->class->interfaces = g_slist_append(ti->class->interfaces, |
| 260 | iface_impl->class); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 261 | } |
| 262 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 263 | static void object_property_free(gpointer data) |
| 264 | { |
| 265 | ObjectProperty *prop = data; |
| 266 | |
| 267 | g_free(prop->name); |
| 268 | g_free(prop->type); |
| 269 | g_free(prop->description); |
| 270 | g_free(prop); |
| 271 | } |
| 272 | |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 273 | static void type_initialize(TypeImpl *ti) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 274 | { |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 275 | TypeImpl *parent; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 276 | |
| 277 | if (ti->class) { |
| 278 | return; |
| 279 | } |
| 280 | |
| 281 | ti->class_size = type_class_get_size(ti); |
Igor Mitsyanko | aca59af | 2012-02-28 15:57:10 +0400 | [diff] [blame] | 282 | ti->instance_size = type_object_get_size(ti); |
Eduardo Habkost | 1c6d75d | 2016-12-12 16:31:01 -0200 | [diff] [blame] | 283 | /* Any type with zero instance_size is implicitly abstract. |
| 284 | * This means interface types are all abstract. |
| 285 | */ |
| 286 | if (ti->instance_size == 0) { |
| 287 | ti->abstract = true; |
| 288 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 289 | |
| 290 | ti->class = g_malloc0(ti->class_size); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 291 | |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 292 | parent = type_get_parent(ti); |
| 293 | if (parent) { |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 294 | type_initialize(parent); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 295 | GSList *e; |
| 296 | int i; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 297 | |
Markus Armbruster | 719a307 | 2018-06-08 19:02:31 +0200 | [diff] [blame] | 298 | g_assert(parent->class_size <= ti->class_size); |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 299 | memcpy(ti->class, parent->class, parent->class_size); |
Peter Crosthwaite | 3e407de | 2013-02-19 14:02:09 +1000 | [diff] [blame] | 300 | ti->class->interfaces = NULL; |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 301 | ti->class->properties = g_hash_table_new_full( |
| 302 | g_str_hash, g_str_equal, g_free, object_property_free); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 303 | |
| 304 | for (e = parent->class->interfaces; e; e = e->next) { |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 305 | InterfaceClass *iface = e->data; |
| 306 | ObjectClass *klass = OBJECT_CLASS(iface); |
| 307 | |
| 308 | type_initialize_interface(ti, iface->interface_type, klass->type); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 309 | } |
| 310 | |
| 311 | for (i = 0; i < ti->num_interfaces; i++) { |
| 312 | TypeImpl *t = type_get_by_name(ti->interfaces[i].typename); |
| 313 | for (e = ti->class->interfaces; e; e = e->next) { |
| 314 | TypeImpl *target_type = OBJECT_CLASS(e->data)->type; |
| 315 | |
| 316 | if (type_is_ancestor(target_type, t)) { |
| 317 | break; |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | if (e) { |
| 322 | continue; |
| 323 | } |
| 324 | |
Paolo Bonzini | b061dc4 | 2013-12-03 16:41:59 +0100 | [diff] [blame] | 325 | type_initialize_interface(ti, t, t); |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 326 | } |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 327 | } else { |
| 328 | ti->class->properties = g_hash_table_new_full( |
| 329 | g_str_hash, g_str_equal, g_free, object_property_free); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 330 | } |
| 331 | |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 332 | ti->class->type = ti; |
| 333 | |
| 334 | while (parent) { |
| 335 | if (parent->class_base_init) { |
| 336 | parent->class_base_init(ti->class, ti->class_data); |
| 337 | } |
| 338 | parent = type_get_parent(parent); |
| 339 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 340 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 341 | if (ti->class_init) { |
| 342 | ti->class_init(ti->class, ti->class_data); |
| 343 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 344 | } |
| 345 | |
| 346 | static void object_init_with_type(Object *obj, TypeImpl *ti) |
| 347 | { |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 348 | if (type_has_parent(ti)) { |
| 349 | object_init_with_type(obj, type_get_parent(ti)); |
| 350 | } |
| 351 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 352 | if (ti->instance_init) { |
| 353 | ti->instance_init(obj); |
| 354 | } |
| 355 | } |
| 356 | |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 357 | static void object_post_init_with_type(Object *obj, TypeImpl *ti) |
| 358 | { |
| 359 | if (ti->instance_post_init) { |
| 360 | ti->instance_post_init(obj); |
| 361 | } |
| 362 | |
| 363 | if (type_has_parent(ti)) { |
| 364 | object_post_init_with_type(obj, type_get_parent(ti)); |
| 365 | } |
| 366 | } |
| 367 | |
Marc-André Lureau | 63f7b10 | 2016-12-12 20:31:51 +0300 | [diff] [blame] | 368 | static void object_initialize_with_type(void *data, size_t size, TypeImpl *type) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 369 | { |
| 370 | Object *obj = data; |
| 371 | |
| 372 | g_assert(type != NULL); |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 373 | type_initialize(type); |
Igor Mitsyanko | aca59af | 2012-02-28 15:57:10 +0400 | [diff] [blame] | 374 | |
Markus Armbruster | 719a307 | 2018-06-08 19:02:31 +0200 | [diff] [blame] | 375 | g_assert(type->instance_size >= sizeof(Object)); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 376 | g_assert(type->abstract == false); |
Markus Armbruster | 719a307 | 2018-06-08 19:02:31 +0200 | [diff] [blame] | 377 | g_assert(size >= type->instance_size); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 378 | |
| 379 | memset(obj, 0, type->instance_size); |
| 380 | obj->class = type->class; |
Paolo Bonzini | 764b631 | 2012-11-23 09:47:12 +0100 | [diff] [blame] | 381 | object_ref(obj); |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 382 | obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal, |
| 383 | NULL, object_property_free); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 384 | object_init_with_type(obj, type); |
Eduardo Habkost | 8231c2d | 2013-07-10 17:08:41 -0300 | [diff] [blame] | 385 | object_post_init_with_type(obj, type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 386 | } |
| 387 | |
Andreas Färber | 213f0c4 | 2013-08-23 19:37:12 +0200 | [diff] [blame] | 388 | void object_initialize(void *data, size_t size, const char *typename) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 389 | { |
| 390 | TypeImpl *type = type_get_by_name(typename); |
| 391 | |
Andreas Färber | 5b9237f | 2013-08-30 18:28:37 +0200 | [diff] [blame] | 392 | object_initialize_with_type(data, size, type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 393 | } |
| 394 | |
Thomas Huth | 0210b39 | 2018-07-16 14:59:18 +0200 | [diff] [blame] | 395 | void object_initialize_child(Object *parentobj, const char *propname, |
| 396 | void *childobj, size_t size, const char *type, |
| 397 | Error **errp, ...) |
| 398 | { |
| 399 | va_list vargs; |
| 400 | |
| 401 | va_start(vargs, errp); |
| 402 | object_initialize_childv(parentobj, propname, childobj, size, type, errp, |
| 403 | vargs); |
| 404 | va_end(vargs); |
| 405 | } |
| 406 | |
| 407 | void object_initialize_childv(Object *parentobj, const char *propname, |
| 408 | void *childobj, size_t size, const char *type, |
| 409 | Error **errp, va_list vargs) |
| 410 | { |
| 411 | Error *local_err = NULL; |
| 412 | Object *obj; |
| 413 | |
| 414 | object_initialize(childobj, size, type); |
| 415 | obj = OBJECT(childobj); |
| 416 | |
| 417 | object_set_propv(obj, &local_err, vargs); |
| 418 | if (local_err) { |
| 419 | goto out; |
| 420 | } |
| 421 | |
| 422 | object_property_add_child(parentobj, propname, obj, &local_err); |
| 423 | if (local_err) { |
| 424 | goto out; |
| 425 | } |
| 426 | |
| 427 | if (object_dynamic_cast(obj, TYPE_USER_CREATABLE)) { |
| 428 | user_creatable_complete(obj, &local_err); |
| 429 | if (local_err) { |
| 430 | object_unparent(obj); |
| 431 | goto out; |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | /* |
| 436 | * Since object_property_add_child added a reference to the child object, |
| 437 | * we can drop the reference added by object_initialize(), so the child |
| 438 | * property will own the only reference to the object. |
| 439 | */ |
| 440 | object_unref(obj); |
| 441 | |
| 442 | out: |
| 443 | if (local_err) { |
| 444 | error_propagate(errp, local_err); |
| 445 | object_unref(obj); |
| 446 | } |
| 447 | } |
| 448 | |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 449 | static inline bool object_property_is_child(ObjectProperty *prop) |
| 450 | { |
| 451 | return strstart(prop->type, "child<", NULL); |
| 452 | } |
| 453 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 454 | static void object_property_del_all(Object *obj) |
| 455 | { |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 456 | ObjectProperty *prop; |
| 457 | GHashTableIter iter; |
| 458 | gpointer key, value; |
| 459 | bool released; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 460 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 461 | do { |
| 462 | released = false; |
| 463 | g_hash_table_iter_init(&iter, obj->properties); |
| 464 | while (g_hash_table_iter_next(&iter, &key, &value)) { |
| 465 | prop = value; |
| 466 | if (prop->release) { |
| 467 | prop->release(obj, prop->name, prop->opaque); |
| 468 | prop->release = NULL; |
| 469 | released = true; |
| 470 | break; |
| 471 | } |
| 472 | g_hash_table_iter_remove(&iter); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 473 | } |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 474 | } while (released); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 475 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 476 | g_hash_table_unref(obj->properties); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 477 | } |
| 478 | |
| 479 | static void object_property_del_child(Object *obj, Object *child, Error **errp) |
| 480 | { |
| 481 | ObjectProperty *prop; |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 482 | GHashTableIter iter; |
| 483 | gpointer key, value; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 484 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 485 | g_hash_table_iter_init(&iter, obj->properties); |
| 486 | while (g_hash_table_iter_next(&iter, &key, &value)) { |
| 487 | prop = value; |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 488 | if (object_property_is_child(prop) && prop->opaque == child) { |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 489 | if (prop->release) { |
| 490 | prop->release(obj, prop->name, prop->opaque); |
| 491 | prop->release = NULL; |
| 492 | } |
| 493 | break; |
| 494 | } |
| 495 | } |
| 496 | g_hash_table_iter_init(&iter, obj->properties); |
| 497 | while (g_hash_table_iter_next(&iter, &key, &value)) { |
| 498 | prop = value; |
| 499 | if (object_property_is_child(prop) && prop->opaque == child) { |
| 500 | g_hash_table_iter_remove(&iter); |
Paolo Bonzini | 6c1fdcf | 2012-02-28 09:54:15 +0100 | [diff] [blame] | 501 | break; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 502 | } |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | void object_unparent(Object *obj) |
| 507 | { |
Michael S. Tsirkin | e998fa8 | 2013-03-18 21:01:37 +0200 | [diff] [blame] | 508 | if (obj->parent) { |
| 509 | object_property_del_child(obj->parent, obj, NULL); |
| 510 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 511 | } |
| 512 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 513 | static void object_deinit(Object *obj, TypeImpl *type) |
| 514 | { |
| 515 | if (type->instance_finalize) { |
| 516 | type->instance_finalize(obj); |
| 517 | } |
| 518 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 519 | if (type_has_parent(type)) { |
| 520 | object_deinit(obj, type_get_parent(type)); |
| 521 | } |
| 522 | } |
| 523 | |
Paolo Bonzini | 339c270 | 2012-11-23 09:47:16 +0100 | [diff] [blame] | 524 | static void object_finalize(void *data) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 525 | { |
| 526 | Object *obj = data; |
| 527 | TypeImpl *ti = obj->class->type; |
| 528 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 529 | object_property_del_all(obj); |
Paolo Bonzini | 76a6e1c | 2014-06-11 11:58:30 +0200 | [diff] [blame] | 530 | object_deinit(obj, ti); |
Anthony Liguori | db85b57 | 2011-12-23 08:47:39 -0600 | [diff] [blame] | 531 | |
Markus Armbruster | 719a307 | 2018-06-08 19:02:31 +0200 | [diff] [blame] | 532 | g_assert(obj->ref == 0); |
Paolo Bonzini | fde9bf4 | 2012-11-23 09:47:14 +0100 | [diff] [blame] | 533 | if (obj->free) { |
| 534 | obj->free(obj); |
| 535 | } |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 536 | } |
| 537 | |
Marc-André Lureau | 63f7b10 | 2016-12-12 20:31:51 +0300 | [diff] [blame] | 538 | static Object *object_new_with_type(Type type) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 539 | { |
| 540 | Object *obj; |
| 541 | |
| 542 | g_assert(type != NULL); |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 543 | type_initialize(type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 544 | |
| 545 | obj = g_malloc(type->instance_size); |
Andreas Färber | 5b9237f | 2013-08-30 18:28:37 +0200 | [diff] [blame] | 546 | object_initialize_with_type(obj, type->instance_size, type); |
Paolo Bonzini | fde9bf4 | 2012-11-23 09:47:14 +0100 | [diff] [blame] | 547 | obj->free = g_free; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 548 | |
| 549 | return obj; |
| 550 | } |
| 551 | |
| 552 | Object *object_new(const char *typename) |
| 553 | { |
| 554 | TypeImpl *ti = type_get_by_name(typename); |
| 555 | |
| 556 | return object_new_with_type(ti); |
| 557 | } |
| 558 | |
Daniel P. Berrange | a31bdae | 2015-05-13 17:14:06 +0100 | [diff] [blame] | 559 | |
| 560 | Object *object_new_with_props(const char *typename, |
| 561 | Object *parent, |
| 562 | const char *id, |
| 563 | Error **errp, |
| 564 | ...) |
| 565 | { |
| 566 | va_list vargs; |
| 567 | Object *obj; |
| 568 | |
| 569 | va_start(vargs, errp); |
| 570 | obj = object_new_with_propv(typename, parent, id, errp, vargs); |
| 571 | va_end(vargs); |
| 572 | |
| 573 | return obj; |
| 574 | } |
| 575 | |
| 576 | |
| 577 | Object *object_new_with_propv(const char *typename, |
| 578 | Object *parent, |
| 579 | const char *id, |
| 580 | Error **errp, |
| 581 | va_list vargs) |
| 582 | { |
| 583 | Object *obj; |
| 584 | ObjectClass *klass; |
| 585 | Error *local_err = NULL; |
| 586 | |
| 587 | klass = object_class_by_name(typename); |
| 588 | if (!klass) { |
| 589 | error_setg(errp, "invalid object type: %s", typename); |
| 590 | return NULL; |
| 591 | } |
| 592 | |
| 593 | if (object_class_is_abstract(klass)) { |
| 594 | error_setg(errp, "object type '%s' is abstract", typename); |
| 595 | return NULL; |
| 596 | } |
| 597 | obj = object_new(typename); |
| 598 | |
| 599 | if (object_set_propv(obj, &local_err, vargs) < 0) { |
| 600 | goto error; |
| 601 | } |
| 602 | |
| 603 | object_property_add_child(parent, id, obj, &local_err); |
| 604 | if (local_err) { |
| 605 | goto error; |
| 606 | } |
| 607 | |
| 608 | if (object_dynamic_cast(obj, TYPE_USER_CREATABLE)) { |
| 609 | user_creatable_complete(obj, &local_err); |
| 610 | if (local_err) { |
| 611 | object_unparent(obj); |
| 612 | goto error; |
| 613 | } |
| 614 | } |
| 615 | |
| 616 | object_unref(OBJECT(obj)); |
| 617 | return obj; |
| 618 | |
| 619 | error: |
Eduardo Habkost | 621ff94 | 2016-06-13 18:57:56 -0300 | [diff] [blame] | 620 | error_propagate(errp, local_err); |
Daniel P. Berrange | a31bdae | 2015-05-13 17:14:06 +0100 | [diff] [blame] | 621 | object_unref(obj); |
| 622 | return NULL; |
| 623 | } |
| 624 | |
| 625 | |
| 626 | int object_set_props(Object *obj, |
| 627 | Error **errp, |
| 628 | ...) |
| 629 | { |
| 630 | va_list vargs; |
| 631 | int ret; |
| 632 | |
| 633 | va_start(vargs, errp); |
| 634 | ret = object_set_propv(obj, errp, vargs); |
| 635 | va_end(vargs); |
| 636 | |
| 637 | return ret; |
| 638 | } |
| 639 | |
| 640 | |
| 641 | int object_set_propv(Object *obj, |
| 642 | Error **errp, |
| 643 | va_list vargs) |
| 644 | { |
| 645 | const char *propname; |
| 646 | Error *local_err = NULL; |
| 647 | |
| 648 | propname = va_arg(vargs, char *); |
| 649 | while (propname != NULL) { |
| 650 | const char *value = va_arg(vargs, char *); |
| 651 | |
| 652 | g_assert(value != NULL); |
| 653 | object_property_parse(obj, value, propname, &local_err); |
| 654 | if (local_err) { |
| 655 | error_propagate(errp, local_err); |
| 656 | return -1; |
| 657 | } |
| 658 | propname = va_arg(vargs, char *); |
| 659 | } |
| 660 | |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 665 | Object *object_dynamic_cast(Object *obj, const char *typename) |
| 666 | { |
Paolo Bonzini | b7f43fe | 2012-11-23 16:56:17 +0100 | [diff] [blame] | 667 | if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) { |
Paolo Bonzini | acc4af3 | 2012-02-03 11:57:23 +0100 | [diff] [blame] | 668 | return obj; |
| 669 | } |
| 670 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 671 | return NULL; |
| 672 | } |
| 673 | |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 674 | Object *object_dynamic_cast_assert(Object *obj, const char *typename, |
| 675 | const char *file, int line, const char *func) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 676 | { |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 677 | trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)", |
| 678 | typename, file, line, func); |
| 679 | |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 680 | #ifdef CONFIG_QOM_CAST_DEBUG |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 681 | int i; |
| 682 | Object *inst; |
| 683 | |
Peter Crosthwaite | 95916ab | 2013-05-22 11:19:16 +1000 | [diff] [blame] | 684 | for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) { |
Alex Bennée | b6b3ccf | 2016-09-30 22:30:57 +0100 | [diff] [blame] | 685 | if (atomic_read(&obj->class->object_cast_cache[i]) == typename) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 686 | goto out; |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | inst = object_dynamic_cast(obj, typename); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 691 | |
Paolo Bonzini | b7f43fe | 2012-11-23 16:56:17 +0100 | [diff] [blame] | 692 | if (!inst && obj) { |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 693 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
| 694 | file, line, func, obj, typename); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 695 | abort(); |
| 696 | } |
| 697 | |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 698 | assert(obj == inst); |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 699 | |
Peter Crosthwaite | 95916ab | 2013-05-22 11:19:16 +1000 | [diff] [blame] | 700 | if (obj && obj == inst) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 701 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
Alex Bennée | b6b3ccf | 2016-09-30 22:30:57 +0100 | [diff] [blame] | 702 | atomic_set(&obj->class->object_cast_cache[i - 1], |
| 703 | atomic_read(&obj->class->object_cast_cache[i])); |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 704 | } |
Alex Bennée | b6b3ccf | 2016-09-30 22:30:57 +0100 | [diff] [blame] | 705 | atomic_set(&obj->class->object_cast_cache[i - 1], typename); |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 706 | } |
| 707 | |
| 708 | out: |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 709 | #endif |
| 710 | return obj; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 711 | } |
| 712 | |
| 713 | ObjectClass *object_class_dynamic_cast(ObjectClass *class, |
| 714 | const char *typename) |
| 715 | { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 716 | ObjectClass *ret = NULL; |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 717 | TypeImpl *target_type; |
| 718 | TypeImpl *type; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 719 | |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 720 | if (!class) { |
| 721 | return NULL; |
| 722 | } |
| 723 | |
Paolo Bonzini | 793c96b | 2013-05-10 14:16:37 +0200 | [diff] [blame] | 724 | /* A simple fast path that can trigger a lot for leaf classes. */ |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 725 | type = class->type; |
Paolo Bonzini | 793c96b | 2013-05-10 14:16:37 +0200 | [diff] [blame] | 726 | if (type->name == typename) { |
| 727 | return class; |
| 728 | } |
| 729 | |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 730 | target_type = type_get_by_name(typename); |
Alexander Graf | 9ab880b | 2013-04-30 15:02:16 +0200 | [diff] [blame] | 731 | if (!target_type) { |
| 732 | /* target class type unknown, so fail the cast */ |
| 733 | return NULL; |
| 734 | } |
| 735 | |
Peter Crosthwaite | 00e2cea | 2013-02-19 14:02:10 +1000 | [diff] [blame] | 736 | if (type->class->interfaces && |
| 737 | type_is_ancestor(target_type, type_interface)) { |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 738 | int found = 0; |
| 739 | GSList *i; |
| 740 | |
| 741 | for (i = class->interfaces; i; i = i->next) { |
| 742 | ObjectClass *target_class = i->data; |
| 743 | |
| 744 | if (type_is_ancestor(target_class->type, target_type)) { |
| 745 | ret = target_class; |
| 746 | found++; |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | /* The match was ambiguous, don't allow a cast */ |
| 751 | if (found > 1) { |
| 752 | ret = NULL; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 753 | } |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 754 | } else if (type_is_ancestor(type, target_type)) { |
| 755 | ret = class; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 756 | } |
| 757 | |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 758 | return ret; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 759 | } |
| 760 | |
| 761 | ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 762 | const char *typename, |
| 763 | const char *file, int line, |
| 764 | const char *func) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 765 | { |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 766 | ObjectClass *ret; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 767 | |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 768 | trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)", |
| 769 | typename, file, line, func); |
| 770 | |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 771 | #ifdef CONFIG_QOM_CAST_DEBUG |
| 772 | int i; |
| 773 | |
Peter Crosthwaite | 9d6a3d5 | 2013-06-18 19:18:59 +1000 | [diff] [blame] | 774 | for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) { |
Alex Bennée | b6b3ccf | 2016-09-30 22:30:57 +0100 | [diff] [blame] | 775 | if (atomic_read(&class->class_cast_cache[i]) == typename) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 776 | ret = class; |
| 777 | goto out; |
| 778 | } |
| 779 | } |
| 780 | #else |
Peter Crosthwaite | 9d6a3d5 | 2013-06-18 19:18:59 +1000 | [diff] [blame] | 781 | if (!class || !class->interfaces) { |
Paolo Bonzini | 3556c23 | 2013-05-10 14:16:40 +0200 | [diff] [blame] | 782 | return class; |
| 783 | } |
| 784 | #endif |
| 785 | |
Paolo Bonzini | fa131d9 | 2013-05-10 14:16:39 +0200 | [diff] [blame] | 786 | ret = object_class_dynamic_cast(class, typename); |
Paolo Bonzini | bf0fda3 | 2013-05-10 14:16:36 +0200 | [diff] [blame] | 787 | if (!ret && class) { |
Paolo Bonzini | be17f18 | 2013-05-10 14:16:38 +0200 | [diff] [blame] | 788 | fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", |
| 789 | file, line, func, class, typename); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 790 | abort(); |
| 791 | } |
| 792 | |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 793 | #ifdef CONFIG_QOM_CAST_DEBUG |
Peter Crosthwaite | 9d6a3d5 | 2013-06-18 19:18:59 +1000 | [diff] [blame] | 794 | if (class && ret == class) { |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 795 | for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { |
Alex Bennée | b6b3ccf | 2016-09-30 22:30:57 +0100 | [diff] [blame] | 796 | atomic_set(&class->class_cast_cache[i - 1], |
| 797 | atomic_read(&class->class_cast_cache[i])); |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 798 | } |
Alex Bennée | b6b3ccf | 2016-09-30 22:30:57 +0100 | [diff] [blame] | 799 | atomic_set(&class->class_cast_cache[i - 1], typename); |
Anthony Liguori | 0358732 | 2013-05-13 15:22:24 -0500 | [diff] [blame] | 800 | } |
| 801 | out: |
| 802 | #endif |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 803 | return ret; |
| 804 | } |
| 805 | |
Igor Mammedov | 8f5d58e | 2017-07-14 10:14:50 +0800 | [diff] [blame] | 806 | const char *object_get_typename(const Object *obj) |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 807 | { |
| 808 | return obj->class->type->name; |
| 809 | } |
| 810 | |
| 811 | ObjectClass *object_get_class(Object *obj) |
| 812 | { |
| 813 | return obj->class; |
| 814 | } |
| 815 | |
Andreas Färber | 1786237 | 2013-01-23 12:20:18 +0100 | [diff] [blame] | 816 | bool object_class_is_abstract(ObjectClass *klass) |
| 817 | { |
| 818 | return klass->type->abstract; |
| 819 | } |
| 820 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 821 | const char *object_class_get_name(ObjectClass *klass) |
| 822 | { |
| 823 | return klass->type->name; |
| 824 | } |
| 825 | |
| 826 | ObjectClass *object_class_by_name(const char *typename) |
| 827 | { |
| 828 | TypeImpl *type = type_get_by_name(typename); |
| 829 | |
| 830 | if (!type) { |
| 831 | return NULL; |
| 832 | } |
| 833 | |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 834 | type_initialize(type); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 835 | |
| 836 | return type->class; |
| 837 | } |
| 838 | |
Paolo Bonzini | e7cce67 | 2012-05-02 13:30:54 +0200 | [diff] [blame] | 839 | ObjectClass *object_class_get_parent(ObjectClass *class) |
| 840 | { |
| 841 | TypeImpl *type = type_get_parent(class->type); |
| 842 | |
| 843 | if (!type) { |
| 844 | return NULL; |
| 845 | } |
| 846 | |
| 847 | type_initialize(type); |
| 848 | |
| 849 | return type->class; |
| 850 | } |
| 851 | |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 852 | typedef struct OCFData |
| 853 | { |
| 854 | void (*fn)(ObjectClass *klass, void *opaque); |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 855 | const char *implements_type; |
| 856 | bool include_abstract; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 857 | void *opaque; |
| 858 | } OCFData; |
| 859 | |
| 860 | static void object_class_foreach_tramp(gpointer key, gpointer value, |
| 861 | gpointer opaque) |
| 862 | { |
| 863 | OCFData *data = opaque; |
| 864 | TypeImpl *type = value; |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 865 | ObjectClass *k; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 866 | |
Igor Mitsyanko | ac45103 | 2012-02-28 15:57:11 +0400 | [diff] [blame] | 867 | type_initialize(type); |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 868 | k = type->class; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 869 | |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 870 | if (!data->include_abstract && type->abstract) { |
| 871 | return; |
| 872 | } |
| 873 | |
| 874 | if (data->implements_type && |
| 875 | !object_class_dynamic_cast(k, data->implements_type)) { |
| 876 | return; |
| 877 | } |
| 878 | |
| 879 | data->fn(k, data->opaque); |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 880 | } |
| 881 | |
| 882 | void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 883 | const char *implements_type, bool include_abstract, |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 884 | void *opaque) |
| 885 | { |
Anthony Liguori | 93c511a | 2011-12-22 14:11:53 -0600 | [diff] [blame] | 886 | OCFData data = { fn, implements_type, include_abstract, opaque }; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 887 | |
Hervé Poussineau | f54c19c | 2013-12-03 16:42:00 +0100 | [diff] [blame] | 888 | enumerating_types = true; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 889 | g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); |
Hervé Poussineau | f54c19c | 2013-12-03 16:42:00 +0100 | [diff] [blame] | 890 | enumerating_types = false; |
Anthony Liguori | 2f28d2f | 2011-12-03 17:10:08 -0600 | [diff] [blame] | 891 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 892 | |
Peter Crosthwaite | d714b8d | 2015-09-08 17:38:43 +0100 | [diff] [blame] | 893 | static int do_object_child_foreach(Object *obj, |
| 894 | int (*fn)(Object *child, void *opaque), |
| 895 | void *opaque, bool recurse) |
Paolo Bonzini | 32efc53 | 2012-04-11 23:30:20 +0200 | [diff] [blame] | 896 | { |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 897 | GHashTableIter iter; |
| 898 | ObjectProperty *prop; |
Paolo Bonzini | 32efc53 | 2012-04-11 23:30:20 +0200 | [diff] [blame] | 899 | int ret = 0; |
| 900 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 901 | g_hash_table_iter_init(&iter, obj->properties); |
| 902 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { |
Paolo Bonzini | 32efc53 | 2012-04-11 23:30:20 +0200 | [diff] [blame] | 903 | if (object_property_is_child(prop)) { |
Peter Crosthwaite | d714b8d | 2015-09-08 17:38:43 +0100 | [diff] [blame] | 904 | Object *child = prop->opaque; |
| 905 | |
| 906 | ret = fn(child, opaque); |
Paolo Bonzini | 32efc53 | 2012-04-11 23:30:20 +0200 | [diff] [blame] | 907 | if (ret != 0) { |
| 908 | break; |
| 909 | } |
Peter Crosthwaite | d714b8d | 2015-09-08 17:38:43 +0100 | [diff] [blame] | 910 | if (recurse) { |
| 911 | do_object_child_foreach(child, fn, opaque, true); |
| 912 | } |
Paolo Bonzini | 32efc53 | 2012-04-11 23:30:20 +0200 | [diff] [blame] | 913 | } |
| 914 | } |
| 915 | return ret; |
| 916 | } |
| 917 | |
Peter Crosthwaite | d714b8d | 2015-09-08 17:38:43 +0100 | [diff] [blame] | 918 | int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque), |
| 919 | void *opaque) |
| 920 | { |
| 921 | return do_object_child_foreach(obj, fn, opaque, false); |
| 922 | } |
| 923 | |
| 924 | int object_child_foreach_recursive(Object *obj, |
| 925 | int (*fn)(Object *child, void *opaque), |
| 926 | void *opaque) |
| 927 | { |
| 928 | return do_object_child_foreach(obj, fn, opaque, true); |
| 929 | } |
| 930 | |
Andreas Färber | 418ba9e | 2012-02-25 23:07:34 +0100 | [diff] [blame] | 931 | static void object_class_get_list_tramp(ObjectClass *klass, void *opaque) |
| 932 | { |
| 933 | GSList **list = opaque; |
| 934 | |
| 935 | *list = g_slist_prepend(*list, klass); |
| 936 | } |
| 937 | |
| 938 | GSList *object_class_get_list(const char *implements_type, |
| 939 | bool include_abstract) |
| 940 | { |
| 941 | GSList *list = NULL; |
| 942 | |
| 943 | object_class_foreach(object_class_get_list_tramp, |
| 944 | implements_type, include_abstract, &list); |
| 945 | return list; |
| 946 | } |
| 947 | |
Paolo Bonzini | 47c6600 | 2018-03-03 08:33:10 +0100 | [diff] [blame] | 948 | static gint object_class_cmp(gconstpointer a, gconstpointer b) |
| 949 | { |
| 950 | return strcasecmp(object_class_get_name((ObjectClass *)a), |
| 951 | object_class_get_name((ObjectClass *)b)); |
| 952 | } |
| 953 | |
| 954 | GSList *object_class_get_list_sorted(const char *implements_type, |
| 955 | bool include_abstract) |
| 956 | { |
| 957 | return g_slist_sort(object_class_get_list(implements_type, include_abstract), |
| 958 | object_class_cmp); |
| 959 | } |
| 960 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 961 | void object_ref(Object *obj) |
| 962 | { |
Peter Crosthwaite | 8ffad85 | 2014-06-05 23:13:36 -0700 | [diff] [blame] | 963 | if (!obj) { |
| 964 | return; |
| 965 | } |
Andreas Färber | 8438a13 | 2015-11-16 17:49:20 +0100 | [diff] [blame] | 966 | atomic_inc(&obj->ref); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 967 | } |
| 968 | |
| 969 | void object_unref(Object *obj) |
| 970 | { |
Peter Crosthwaite | 8ffad85 | 2014-06-05 23:13:36 -0700 | [diff] [blame] | 971 | if (!obj) { |
| 972 | return; |
| 973 | } |
Markus Armbruster | 719a307 | 2018-06-08 19:02:31 +0200 | [diff] [blame] | 974 | g_assert(obj->ref > 0); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 975 | |
| 976 | /* parent always holds a reference to its children */ |
Jan Kiszka | f08c03f | 2013-07-02 11:36:39 +0200 | [diff] [blame] | 977 | if (atomic_fetch_dec(&obj->ref) == 1) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 978 | object_finalize(obj); |
| 979 | } |
| 980 | } |
| 981 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 982 | ObjectProperty * |
| 983 | object_property_add(Object *obj, const char *name, const char *type, |
| 984 | ObjectPropertyAccessor *get, |
| 985 | ObjectPropertyAccessor *set, |
| 986 | ObjectPropertyRelease *release, |
| 987 | void *opaque, Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 988 | { |
Peter Maydell | 54852b0 | 2013-03-25 13:15:13 +0000 | [diff] [blame] | 989 | ObjectProperty *prop; |
Peter Crosthwaite | 3396590 | 2014-08-19 23:55:52 -0700 | [diff] [blame] | 990 | size_t name_len = strlen(name); |
| 991 | |
| 992 | if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) { |
| 993 | int i; |
| 994 | ObjectProperty *ret; |
| 995 | char *name_no_array = g_strdup(name); |
| 996 | |
| 997 | name_no_array[name_len - 3] = '\0'; |
| 998 | for (i = 0; ; ++i) { |
| 999 | char *full_name = g_strdup_printf("%s[%d]", name_no_array, i); |
| 1000 | |
| 1001 | ret = object_property_add(obj, full_name, type, get, set, |
| 1002 | release, opaque, NULL); |
| 1003 | g_free(full_name); |
| 1004 | if (ret) { |
| 1005 | break; |
| 1006 | } |
| 1007 | } |
| 1008 | g_free(name_no_array); |
| 1009 | return ret; |
| 1010 | } |
Peter Maydell | 54852b0 | 2013-03-25 13:15:13 +0000 | [diff] [blame] | 1011 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 1012 | if (object_property_find(obj, name, NULL) != NULL) { |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1013 | error_setg(errp, "attempt to add duplicate property '%s'" |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 1014 | " to object (type '%s')", name, |
| 1015 | object_get_typename(obj)); |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1016 | return NULL; |
Peter Maydell | 54852b0 | 2013-03-25 13:15:13 +0000 | [diff] [blame] | 1017 | } |
| 1018 | |
| 1019 | prop = g_malloc0(sizeof(*prop)); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1020 | |
| 1021 | prop->name = g_strdup(name); |
| 1022 | prop->type = g_strdup(type); |
| 1023 | |
| 1024 | prop->get = get; |
| 1025 | prop->set = set; |
| 1026 | prop->release = release; |
| 1027 | prop->opaque = opaque; |
| 1028 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1029 | g_hash_table_insert(obj->properties, prop->name, prop); |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1030 | return prop; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1031 | } |
| 1032 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 1033 | ObjectProperty * |
| 1034 | object_class_property_add(ObjectClass *klass, |
| 1035 | const char *name, |
| 1036 | const char *type, |
| 1037 | ObjectPropertyAccessor *get, |
| 1038 | ObjectPropertyAccessor *set, |
| 1039 | ObjectPropertyRelease *release, |
| 1040 | void *opaque, |
| 1041 | Error **errp) |
| 1042 | { |
| 1043 | ObjectProperty *prop; |
| 1044 | |
| 1045 | if (object_class_property_find(klass, name, NULL) != NULL) { |
| 1046 | error_setg(errp, "attempt to add duplicate property '%s'" |
| 1047 | " to object (type '%s')", name, |
| 1048 | object_class_get_name(klass)); |
| 1049 | return NULL; |
| 1050 | } |
| 1051 | |
| 1052 | prop = g_malloc0(sizeof(*prop)); |
| 1053 | |
| 1054 | prop->name = g_strdup(name); |
| 1055 | prop->type = g_strdup(type); |
| 1056 | |
| 1057 | prop->get = get; |
| 1058 | prop->set = set; |
| 1059 | prop->release = release; |
| 1060 | prop->opaque = opaque; |
| 1061 | |
| 1062 | g_hash_table_insert(klass->properties, g_strdup(name), prop); |
| 1063 | |
| 1064 | return prop; |
| 1065 | } |
| 1066 | |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 1067 | ObjectProperty *object_property_find(Object *obj, const char *name, |
| 1068 | Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1069 | { |
| 1070 | ObjectProperty *prop; |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 1071 | ObjectClass *klass = object_get_class(obj); |
| 1072 | |
| 1073 | prop = object_class_property_find(klass, name, NULL); |
| 1074 | if (prop) { |
| 1075 | return prop; |
| 1076 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1077 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1078 | prop = g_hash_table_lookup(obj->properties, name); |
| 1079 | if (prop) { |
| 1080 | return prop; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1081 | } |
| 1082 | |
Cole Robinson | f231b88 | 2014-03-21 19:42:26 -0400 | [diff] [blame] | 1083 | error_setg(errp, "Property '.%s' not found", name); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1084 | return NULL; |
| 1085 | } |
| 1086 | |
Daniel P. Berrange | 7746abd | 2015-12-09 12:34:02 +0000 | [diff] [blame] | 1087 | void object_property_iter_init(ObjectPropertyIterator *iter, |
| 1088 | Object *obj) |
Daniel P. Berrange | a00c948 | 2015-10-13 13:37:40 +0100 | [diff] [blame] | 1089 | { |
Daniel P. Berrange | 7746abd | 2015-12-09 12:34:02 +0000 | [diff] [blame] | 1090 | g_hash_table_iter_init(&iter->iter, obj->properties); |
| 1091 | iter->nextclass = object_get_class(obj); |
Daniel P. Berrange | a00c948 | 2015-10-13 13:37:40 +0100 | [diff] [blame] | 1092 | } |
| 1093 | |
| 1094 | ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter) |
| 1095 | { |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1096 | gpointer key, val; |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 1097 | while (!g_hash_table_iter_next(&iter->iter, &key, &val)) { |
| 1098 | if (!iter->nextclass) { |
| 1099 | return NULL; |
| 1100 | } |
| 1101 | g_hash_table_iter_init(&iter->iter, iter->nextclass->properties); |
| 1102 | iter->nextclass = object_class_get_parent(iter->nextclass); |
Daniel P. Berrange | a00c948 | 2015-10-13 13:37:40 +0100 | [diff] [blame] | 1103 | } |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1104 | return val; |
Daniel P. Berrange | a00c948 | 2015-10-13 13:37:40 +0100 | [diff] [blame] | 1105 | } |
| 1106 | |
Alexey Kardashevskiy | 961c47b | 2018-03-02 00:09:39 +1100 | [diff] [blame] | 1107 | void object_class_property_iter_init(ObjectPropertyIterator *iter, |
| 1108 | ObjectClass *klass) |
| 1109 | { |
| 1110 | g_hash_table_iter_init(&iter->iter, klass->properties); |
| 1111 | iter->nextclass = klass; |
| 1112 | } |
| 1113 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 1114 | ObjectProperty *object_class_property_find(ObjectClass *klass, const char *name, |
| 1115 | Error **errp) |
| 1116 | { |
| 1117 | ObjectProperty *prop; |
| 1118 | ObjectClass *parent_klass; |
| 1119 | |
| 1120 | parent_klass = object_class_get_parent(klass); |
| 1121 | if (parent_klass) { |
| 1122 | prop = object_class_property_find(parent_klass, name, NULL); |
| 1123 | if (prop) { |
| 1124 | return prop; |
| 1125 | } |
| 1126 | } |
| 1127 | |
| 1128 | prop = g_hash_table_lookup(klass->properties, name); |
| 1129 | if (!prop) { |
| 1130 | error_setg(errp, "Property '.%s' not found", name); |
| 1131 | } |
| 1132 | return prop; |
| 1133 | } |
| 1134 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1135 | void object_property_del(Object *obj, const char *name, Error **errp) |
| 1136 | { |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1137 | ObjectProperty *prop = g_hash_table_lookup(obj->properties, name); |
| 1138 | |
| 1139 | if (!prop) { |
| 1140 | error_setg(errp, "Property '.%s' not found", name); |
Anthony Liguori | 0866aca | 2011-12-23 15:34:39 -0600 | [diff] [blame] | 1141 | return; |
| 1142 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1143 | |
Anthony Liguori | 0866aca | 2011-12-23 15:34:39 -0600 | [diff] [blame] | 1144 | if (prop->release) { |
| 1145 | prop->release(obj, name, prop->opaque); |
| 1146 | } |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1147 | g_hash_table_remove(obj->properties, name); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1148 | } |
| 1149 | |
| 1150 | void object_property_get(Object *obj, Visitor *v, const char *name, |
| 1151 | Error **errp) |
| 1152 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 1153 | ObjectProperty *prop = object_property_find(obj, name, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1154 | if (prop == NULL) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1155 | return; |
| 1156 | } |
| 1157 | |
| 1158 | if (!prop->get) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 1159 | error_setg(errp, QERR_PERMISSION_DENIED); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1160 | } else { |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1161 | prop->get(obj, v, name, prop->opaque, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1162 | } |
| 1163 | } |
| 1164 | |
| 1165 | void object_property_set(Object *obj, Visitor *v, const char *name, |
| 1166 | Error **errp) |
| 1167 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 1168 | ObjectProperty *prop = object_property_find(obj, name, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1169 | if (prop == NULL) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1170 | return; |
| 1171 | } |
| 1172 | |
| 1173 | if (!prop->set) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 1174 | error_setg(errp, QERR_PERMISSION_DENIED); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1175 | } else { |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1176 | prop->set(obj, v, name, prop->opaque, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1177 | } |
| 1178 | } |
| 1179 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1180 | void object_property_set_str(Object *obj, const char *value, |
| 1181 | const char *name, Error **errp) |
| 1182 | { |
| 1183 | QString *qstr = qstring_from_str(value); |
| 1184 | object_property_set_qobject(obj, QOBJECT(qstr), name, errp); |
| 1185 | |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1186 | qobject_unref(qstr); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | char *object_property_get_str(Object *obj, const char *name, |
| 1190 | Error **errp) |
| 1191 | { |
| 1192 | QObject *ret = object_property_get_qobject(obj, name, errp); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1193 | char *retval; |
| 1194 | |
| 1195 | if (!ret) { |
| 1196 | return NULL; |
| 1197 | } |
Peter Xu | aafb21a | 2018-03-09 16:59:47 +0800 | [diff] [blame] | 1198 | |
| 1199 | retval = g_strdup(qobject_get_try_str(ret)); |
| 1200 | if (!retval) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 1201 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string"); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1202 | } |
| 1203 | |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1204 | qobject_unref(ret); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1205 | return retval; |
| 1206 | } |
| 1207 | |
Paolo Bonzini | 1d9c5a1 | 2012-02-02 10:51:57 +0100 | [diff] [blame] | 1208 | void object_property_set_link(Object *obj, Object *value, |
| 1209 | const char *name, Error **errp) |
| 1210 | { |
Peter Crosthwaite | d3c4931 | 2014-09-25 22:19:19 -0700 | [diff] [blame] | 1211 | if (value) { |
| 1212 | gchar *path = object_get_canonical_path(value); |
| 1213 | object_property_set_str(obj, path, name, errp); |
| 1214 | g_free(path); |
| 1215 | } else { |
| 1216 | object_property_set_str(obj, "", name, errp); |
| 1217 | } |
Paolo Bonzini | 1d9c5a1 | 2012-02-02 10:51:57 +0100 | [diff] [blame] | 1218 | } |
| 1219 | |
| 1220 | Object *object_property_get_link(Object *obj, const char *name, |
| 1221 | Error **errp) |
| 1222 | { |
| 1223 | char *str = object_property_get_str(obj, name, errp); |
| 1224 | Object *target = NULL; |
| 1225 | |
| 1226 | if (str && *str) { |
| 1227 | target = object_resolve_path(str, NULL); |
| 1228 | if (!target) { |
Markus Armbruster | 75158eb | 2015-03-16 08:57:47 +0100 | [diff] [blame] | 1229 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
| 1230 | "Device '%s' not found", str); |
Paolo Bonzini | 1d9c5a1 | 2012-02-02 10:51:57 +0100 | [diff] [blame] | 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | g_free(str); |
| 1235 | return target; |
| 1236 | } |
| 1237 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1238 | void object_property_set_bool(Object *obj, bool value, |
| 1239 | const char *name, Error **errp) |
| 1240 | { |
Eric Blake | fc48ffc | 2015-05-15 16:24:59 -0600 | [diff] [blame] | 1241 | QBool *qbool = qbool_from_bool(value); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1242 | object_property_set_qobject(obj, QOBJECT(qbool), name, errp); |
| 1243 | |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1244 | qobject_unref(qbool); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1245 | } |
| 1246 | |
| 1247 | bool object_property_get_bool(Object *obj, const char *name, |
| 1248 | Error **errp) |
| 1249 | { |
| 1250 | QObject *ret = object_property_get_qobject(obj, name, errp); |
| 1251 | QBool *qbool; |
| 1252 | bool retval; |
| 1253 | |
| 1254 | if (!ret) { |
| 1255 | return false; |
| 1256 | } |
Max Reitz | 7dc847e | 2018-02-24 16:40:29 +0100 | [diff] [blame] | 1257 | qbool = qobject_to(QBool, ret); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1258 | if (!qbool) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 1259 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean"); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1260 | retval = false; |
| 1261 | } else { |
Eric Blake | fc48ffc | 2015-05-15 16:24:59 -0600 | [diff] [blame] | 1262 | retval = qbool_get_bool(qbool); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1263 | } |
| 1264 | |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1265 | qobject_unref(ret); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1266 | return retval; |
| 1267 | } |
| 1268 | |
| 1269 | void object_property_set_int(Object *obj, int64_t value, |
| 1270 | const char *name, Error **errp) |
| 1271 | { |
Marc-André Lureau | 01b2ffc | 2017-06-07 20:35:58 +0400 | [diff] [blame] | 1272 | QNum *qnum = qnum_from_int(value); |
| 1273 | object_property_set_qobject(obj, QOBJECT(qnum), name, errp); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1274 | |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1275 | qobject_unref(qnum); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1276 | } |
| 1277 | |
| 1278 | int64_t object_property_get_int(Object *obj, const char *name, |
| 1279 | Error **errp) |
| 1280 | { |
| 1281 | QObject *ret = object_property_get_qobject(obj, name, errp); |
Marc-André Lureau | 01b2ffc | 2017-06-07 20:35:58 +0400 | [diff] [blame] | 1282 | QNum *qnum; |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1283 | int64_t retval; |
| 1284 | |
| 1285 | if (!ret) { |
| 1286 | return -1; |
| 1287 | } |
Marc-André Lureau | 01b2ffc | 2017-06-07 20:35:58 +0400 | [diff] [blame] | 1288 | |
Max Reitz | 7dc847e | 2018-02-24 16:40:29 +0100 | [diff] [blame] | 1289 | qnum = qobject_to(QNum, ret); |
Marc-André Lureau | 01b2ffc | 2017-06-07 20:35:58 +0400 | [diff] [blame] | 1290 | if (!qnum || !qnum_get_try_int(qnum, &retval)) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 1291 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int"); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1292 | retval = -1; |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1293 | } |
| 1294 | |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1295 | qobject_unref(ret); |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1296 | return retval; |
| 1297 | } |
| 1298 | |
Marc-André Lureau | 3152779 | 2017-06-07 20:36:04 +0400 | [diff] [blame] | 1299 | void object_property_set_uint(Object *obj, uint64_t value, |
| 1300 | const char *name, Error **errp) |
| 1301 | { |
| 1302 | QNum *qnum = qnum_from_uint(value); |
| 1303 | |
| 1304 | object_property_set_qobject(obj, QOBJECT(qnum), name, errp); |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1305 | qobject_unref(qnum); |
Marc-André Lureau | 3152779 | 2017-06-07 20:36:04 +0400 | [diff] [blame] | 1306 | } |
| 1307 | |
| 1308 | uint64_t object_property_get_uint(Object *obj, const char *name, |
| 1309 | Error **errp) |
| 1310 | { |
| 1311 | QObject *ret = object_property_get_qobject(obj, name, errp); |
| 1312 | QNum *qnum; |
| 1313 | uint64_t retval; |
| 1314 | |
| 1315 | if (!ret) { |
| 1316 | return 0; |
| 1317 | } |
Max Reitz | 7dc847e | 2018-02-24 16:40:29 +0100 | [diff] [blame] | 1318 | qnum = qobject_to(QNum, ret); |
Marc-André Lureau | 3152779 | 2017-06-07 20:36:04 +0400 | [diff] [blame] | 1319 | if (!qnum || !qnum_get_try_uint(qnum, &retval)) { |
| 1320 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "uint"); |
| 1321 | retval = 0; |
| 1322 | } |
| 1323 | |
Marc-André Lureau | cb3e7f0 | 2018-04-19 17:01:43 +0200 | [diff] [blame] | 1324 | qobject_unref(ret); |
Marc-André Lureau | 3152779 | 2017-06-07 20:36:04 +0400 | [diff] [blame] | 1325 | return retval; |
| 1326 | } |
| 1327 | |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 1328 | typedef struct EnumProperty { |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 1329 | const QEnumLookup *lookup; |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 1330 | int (*get)(Object *, Error **); |
| 1331 | void (*set)(Object *, int, Error **); |
| 1332 | } EnumProperty; |
| 1333 | |
Hu Tao | 1f21772 | 2014-05-14 17:43:33 +0800 | [diff] [blame] | 1334 | int object_property_get_enum(Object *obj, const char *name, |
Daniel P. Berrange | a3590da | 2015-05-27 16:07:56 +0100 | [diff] [blame] | 1335 | const char *typename, Error **errp) |
Hu Tao | 1f21772 | 2014-05-14 17:43:33 +0800 | [diff] [blame] | 1336 | { |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1337 | Error *err = NULL; |
Eric Blake | 7a0525c | 2016-06-09 10:48:37 -0600 | [diff] [blame] | 1338 | Visitor *v; |
Chen Fan | 976620a | 2014-08-18 14:46:34 +0800 | [diff] [blame] | 1339 | char *str; |
Hu Tao | 1f21772 | 2014-05-14 17:43:33 +0800 | [diff] [blame] | 1340 | int ret; |
Daniel P. Berrange | a3590da | 2015-05-27 16:07:56 +0100 | [diff] [blame] | 1341 | ObjectProperty *prop = object_property_find(obj, name, errp); |
| 1342 | EnumProperty *enumprop; |
| 1343 | |
| 1344 | if (prop == NULL) { |
| 1345 | return 0; |
| 1346 | } |
| 1347 | |
| 1348 | if (!g_str_equal(prop->type, typename)) { |
| 1349 | error_setg(errp, "Property %s on %s is not '%s' enum type", |
| 1350 | name, object_class_get_name( |
| 1351 | object_get_class(obj)), typename); |
| 1352 | return 0; |
| 1353 | } |
| 1354 | |
| 1355 | enumprop = prop->opaque; |
Hu Tao | 1f21772 | 2014-05-14 17:43:33 +0800 | [diff] [blame] | 1356 | |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1357 | v = string_output_visitor_new(false, &str); |
Eric Blake | e7ca565 | 2016-06-09 10:48:39 -0600 | [diff] [blame] | 1358 | object_property_get(obj, v, name, &err); |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1359 | if (err) { |
| 1360 | error_propagate(errp, err); |
Eric Blake | e7ca565 | 2016-06-09 10:48:39 -0600 | [diff] [blame] | 1361 | visit_free(v); |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1362 | return 0; |
| 1363 | } |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1364 | visit_complete(v, &str); |
Eric Blake | e7ca565 | 2016-06-09 10:48:39 -0600 | [diff] [blame] | 1365 | visit_free(v); |
Eric Blake | 7a0525c | 2016-06-09 10:48:37 -0600 | [diff] [blame] | 1366 | v = string_input_visitor_new(str); |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 1367 | visit_type_enum(v, name, &ret, enumprop->lookup, errp); |
Chen Fan | 976620a | 2014-08-18 14:46:34 +0800 | [diff] [blame] | 1368 | |
| 1369 | g_free(str); |
Eric Blake | 7a0525c | 2016-06-09 10:48:37 -0600 | [diff] [blame] | 1370 | visit_free(v); |
Hu Tao | 1f21772 | 2014-05-14 17:43:33 +0800 | [diff] [blame] | 1371 | |
| 1372 | return ret; |
| 1373 | } |
| 1374 | |
| 1375 | void object_property_get_uint16List(Object *obj, const char *name, |
| 1376 | uint16List **list, Error **errp) |
| 1377 | { |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1378 | Error *err = NULL; |
Eric Blake | 7a0525c | 2016-06-09 10:48:37 -0600 | [diff] [blame] | 1379 | Visitor *v; |
Chen Fan | 976620a | 2014-08-18 14:46:34 +0800 | [diff] [blame] | 1380 | char *str; |
Hu Tao | 1f21772 | 2014-05-14 17:43:33 +0800 | [diff] [blame] | 1381 | |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1382 | v = string_output_visitor_new(false, &str); |
| 1383 | object_property_get(obj, v, name, &err); |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1384 | if (err) { |
| 1385 | error_propagate(errp, err); |
| 1386 | goto out; |
| 1387 | } |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1388 | visit_complete(v, &str); |
| 1389 | visit_free(v); |
Eric Blake | 7a0525c | 2016-06-09 10:48:37 -0600 | [diff] [blame] | 1390 | v = string_input_visitor_new(str); |
| 1391 | visit_type_uint16List(v, NULL, list, errp); |
Chen Fan | 976620a | 2014-08-18 14:46:34 +0800 | [diff] [blame] | 1392 | |
| 1393 | g_free(str); |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1394 | out: |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1395 | visit_free(v); |
Hu Tao | 1f21772 | 2014-05-14 17:43:33 +0800 | [diff] [blame] | 1396 | } |
| 1397 | |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 1398 | void object_property_parse(Object *obj, const char *string, |
| 1399 | const char *name, Error **errp) |
| 1400 | { |
Eric Blake | 7a0525c | 2016-06-09 10:48:37 -0600 | [diff] [blame] | 1401 | Visitor *v = string_input_visitor_new(string); |
| 1402 | object_property_set(obj, v, name, errp); |
| 1403 | visit_free(v); |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 1404 | } |
| 1405 | |
Paolo Bonzini | 0b7593e | 2014-02-08 11:01:50 +0100 | [diff] [blame] | 1406 | char *object_property_print(Object *obj, const char *name, bool human, |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 1407 | Error **errp) |
| 1408 | { |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1409 | Visitor *v; |
Gonglei | 3a53009 | 2014-09-27 13:13:55 +0800 | [diff] [blame] | 1410 | char *string = NULL; |
| 1411 | Error *local_err = NULL; |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 1412 | |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1413 | v = string_output_visitor_new(human, &string); |
| 1414 | object_property_get(obj, v, name, &local_err); |
Gonglei | 3a53009 | 2014-09-27 13:13:55 +0800 | [diff] [blame] | 1415 | if (local_err) { |
| 1416 | error_propagate(errp, local_err); |
| 1417 | goto out; |
| 1418 | } |
| 1419 | |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1420 | visit_complete(v, &string); |
Gonglei | 3a53009 | 2014-09-27 13:13:55 +0800 | [diff] [blame] | 1421 | |
| 1422 | out: |
Eric Blake | 3b098d5 | 2016-06-09 10:48:43 -0600 | [diff] [blame] | 1423 | visit_free(v); |
Paolo Bonzini | b2cd7de | 2012-02-09 09:52:59 +0100 | [diff] [blame] | 1424 | return string; |
| 1425 | } |
| 1426 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1427 | const char *object_property_get_type(Object *obj, const char *name, Error **errp) |
| 1428 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 1429 | ObjectProperty *prop = object_property_find(obj, name, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1430 | if (prop == NULL) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1431 | return NULL; |
| 1432 | } |
| 1433 | |
| 1434 | return prop->type; |
| 1435 | } |
| 1436 | |
| 1437 | Object *object_get_root(void) |
| 1438 | { |
Anthony Liguori | 8b45d44 | 2011-12-23 09:08:05 -0600 | [diff] [blame] | 1439 | static Object *root; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1440 | |
Anthony Liguori | 8b45d44 | 2011-12-23 09:08:05 -0600 | [diff] [blame] | 1441 | if (!root) { |
| 1442 | root = object_new("container"); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1443 | } |
| 1444 | |
Anthony Liguori | 8b45d44 | 2011-12-23 09:08:05 -0600 | [diff] [blame] | 1445 | return root; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1446 | } |
| 1447 | |
Daniel P. Berrange | bc2256c | 2015-05-13 17:14:05 +0100 | [diff] [blame] | 1448 | Object *object_get_objects_root(void) |
| 1449 | { |
| 1450 | return container_get(object_get_root(), "/objects"); |
| 1451 | } |
| 1452 | |
Peter Xu | 7c47c4e | 2017-09-28 10:59:54 +0800 | [diff] [blame] | 1453 | Object *object_get_internal_root(void) |
| 1454 | { |
| 1455 | static Object *internal_root; |
| 1456 | |
| 1457 | if (!internal_root) { |
| 1458 | internal_root = object_new("container"); |
| 1459 | } |
| 1460 | |
| 1461 | return internal_root; |
| 1462 | } |
| 1463 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1464 | static void object_get_child_property(Object *obj, Visitor *v, |
| 1465 | const char *name, void *opaque, |
| 1466 | Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1467 | { |
| 1468 | Object *child = opaque; |
| 1469 | gchar *path; |
| 1470 | |
| 1471 | path = object_get_canonical_path(child); |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1472 | visit_type_str(v, name, &path, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1473 | g_free(path); |
| 1474 | } |
| 1475 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1476 | static Object *object_resolve_child_property(Object *parent, void *opaque, const gchar *part) |
| 1477 | { |
| 1478 | return opaque; |
| 1479 | } |
| 1480 | |
Anthony Liguori | db85b57 | 2011-12-23 08:47:39 -0600 | [diff] [blame] | 1481 | static void object_finalize_child_property(Object *obj, const char *name, |
| 1482 | void *opaque) |
| 1483 | { |
| 1484 | Object *child = opaque; |
| 1485 | |
Paolo Bonzini | bffc687 | 2014-06-11 11:57:38 +0200 | [diff] [blame] | 1486 | if (child->class->unparent) { |
| 1487 | (child->class->unparent)(child); |
| 1488 | } |
| 1489 | child->parent = NULL; |
Anthony Liguori | db85b57 | 2011-12-23 08:47:39 -0600 | [diff] [blame] | 1490 | object_unref(child); |
| 1491 | } |
| 1492 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1493 | void object_property_add_child(Object *obj, const char *name, |
| 1494 | Object *child, Error **errp) |
| 1495 | { |
Paolo Bonzini | b0ed5e9 | 2013-12-20 23:21:08 +0100 | [diff] [blame] | 1496 | Error *local_err = NULL; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1497 | gchar *type; |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1498 | ObjectProperty *op; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1499 | |
Peter Crosthwaite | 8faa2f8 | 2014-09-25 22:19:52 -0700 | [diff] [blame] | 1500 | if (child->parent != NULL) { |
| 1501 | error_setg(errp, "child object is already parented"); |
| 1502 | return; |
| 1503 | } |
| 1504 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1505 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
| 1506 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1507 | op = object_property_add(obj, name, type, object_get_child_property, NULL, |
| 1508 | object_finalize_child_property, child, &local_err); |
Paolo Bonzini | b0ed5e9 | 2013-12-20 23:21:08 +0100 | [diff] [blame] | 1509 | if (local_err) { |
| 1510 | error_propagate(errp, local_err); |
| 1511 | goto out; |
| 1512 | } |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1513 | |
| 1514 | op->resolve = object_resolve_child_property; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1515 | object_ref(child); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1516 | child->parent = obj; |
| 1517 | |
Paolo Bonzini | b0ed5e9 | 2013-12-20 23:21:08 +0100 | [diff] [blame] | 1518 | out: |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1519 | g_free(type); |
| 1520 | } |
| 1521 | |
Igor Mammedov | 8f5d58e | 2017-07-14 10:14:50 +0800 | [diff] [blame] | 1522 | void object_property_allow_set_link(const Object *obj, const char *name, |
Stefan Hajnoczi | 39f72ef | 2014-03-19 08:58:56 +0100 | [diff] [blame] | 1523 | Object *val, Error **errp) |
| 1524 | { |
| 1525 | /* Allow the link to be set, always */ |
| 1526 | } |
| 1527 | |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1528 | typedef struct { |
| 1529 | Object **child; |
Igor Mammedov | 8f5d58e | 2017-07-14 10:14:50 +0800 | [diff] [blame] | 1530 | void (*check)(const Object *, const char *, Object *, Error **); |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1531 | ObjectPropertyLinkFlags flags; |
| 1532 | } LinkProperty; |
| 1533 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1534 | static void object_get_link_property(Object *obj, Visitor *v, |
| 1535 | const char *name, void *opaque, |
| 1536 | Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1537 | { |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1538 | LinkProperty *lprop = opaque; |
| 1539 | Object **child = lprop->child; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1540 | gchar *path; |
| 1541 | |
| 1542 | if (*child) { |
| 1543 | path = object_get_canonical_path(*child); |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1544 | visit_type_str(v, name, &path, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1545 | g_free(path); |
| 1546 | } else { |
| 1547 | path = (gchar *)""; |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1548 | visit_type_str(v, name, &path, errp); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1549 | } |
| 1550 | } |
| 1551 | |
Stefan Hajnoczi | f5ec670 | 2014-03-19 08:58:53 +0100 | [diff] [blame] | 1552 | /* |
| 1553 | * object_resolve_link: |
| 1554 | * |
| 1555 | * Lookup an object and ensure its type matches the link property type. This |
| 1556 | * is similar to object_resolve_path() except type verification against the |
| 1557 | * link property is performed. |
| 1558 | * |
| 1559 | * Returns: The matched object or NULL on path lookup failures. |
| 1560 | */ |
| 1561 | static Object *object_resolve_link(Object *obj, const char *name, |
| 1562 | const char *path, Error **errp) |
| 1563 | { |
| 1564 | const char *type; |
| 1565 | gchar *target_type; |
| 1566 | bool ambiguous = false; |
| 1567 | Object *target; |
| 1568 | |
| 1569 | /* Go from link<FOO> to FOO. */ |
| 1570 | type = object_property_get_type(obj, name, NULL); |
| 1571 | target_type = g_strndup(&type[5], strlen(type) - 6); |
| 1572 | target = object_resolve_path_type(path, target_type, &ambiguous); |
| 1573 | |
| 1574 | if (ambiguous) { |
Eric Blake | 455b0fd | 2015-11-10 23:51:20 -0700 | [diff] [blame] | 1575 | error_setg(errp, "Path '%s' does not uniquely identify an object", |
| 1576 | path); |
Stefan Hajnoczi | f5ec670 | 2014-03-19 08:58:53 +0100 | [diff] [blame] | 1577 | } else if (!target) { |
| 1578 | target = object_resolve_path(path, &ambiguous); |
| 1579 | if (target || ambiguous) { |
Markus Armbruster | c6bd8c7 | 2015-03-17 11:54:50 +0100 | [diff] [blame] | 1580 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); |
Stefan Hajnoczi | f5ec670 | 2014-03-19 08:58:53 +0100 | [diff] [blame] | 1581 | } else { |
Markus Armbruster | 75158eb | 2015-03-16 08:57:47 +0100 | [diff] [blame] | 1582 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
| 1583 | "Device '%s' not found", path); |
Stefan Hajnoczi | f5ec670 | 2014-03-19 08:58:53 +0100 | [diff] [blame] | 1584 | } |
| 1585 | target = NULL; |
| 1586 | } |
| 1587 | g_free(target_type); |
| 1588 | |
| 1589 | return target; |
| 1590 | } |
| 1591 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1592 | static void object_set_link_property(Object *obj, Visitor *v, |
| 1593 | const char *name, void *opaque, |
| 1594 | Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1595 | { |
Stefan Hajnoczi | c6aed98 | 2014-03-19 08:58:54 +0100 | [diff] [blame] | 1596 | Error *local_err = NULL; |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1597 | LinkProperty *prop = opaque; |
| 1598 | Object **child = prop->child; |
Stefan Hajnoczi | c6aed98 | 2014-03-19 08:58:54 +0100 | [diff] [blame] | 1599 | Object *old_target = *child; |
| 1600 | Object *new_target = NULL; |
| 1601 | char *path = NULL; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1602 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1603 | visit_type_str(v, name, &path, &local_err); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1604 | |
Stefan Hajnoczi | c6aed98 | 2014-03-19 08:58:54 +0100 | [diff] [blame] | 1605 | if (!local_err && strcmp(path, "") != 0) { |
| 1606 | new_target = object_resolve_link(obj, name, path, &local_err); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1607 | } |
| 1608 | |
| 1609 | g_free(path); |
Stefan Hajnoczi | c6aed98 | 2014-03-19 08:58:54 +0100 | [diff] [blame] | 1610 | if (local_err) { |
| 1611 | error_propagate(errp, local_err); |
| 1612 | return; |
| 1613 | } |
Alexander Barabash | f0cdc96 | 2012-02-22 19:22:26 +0200 | [diff] [blame] | 1614 | |
Stefan Hajnoczi | 39f72ef | 2014-03-19 08:58:56 +0100 | [diff] [blame] | 1615 | prop->check(obj, name, new_target, &local_err); |
| 1616 | if (local_err) { |
| 1617 | error_propagate(errp, local_err); |
| 1618 | return; |
| 1619 | } |
| 1620 | |
Stefan Hajnoczi | c6aed98 | 2014-03-19 08:58:54 +0100 | [diff] [blame] | 1621 | *child = new_target; |
Marc-André Lureau | 265b578 | 2018-05-31 21:51:17 +0200 | [diff] [blame] | 1622 | if (prop->flags == OBJ_PROP_LINK_STRONG) { |
| 1623 | object_ref(new_target); |
| 1624 | object_unref(old_target); |
| 1625 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1626 | } |
| 1627 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1628 | static Object *object_resolve_link_property(Object *parent, void *opaque, const gchar *part) |
| 1629 | { |
| 1630 | LinkProperty *lprop = opaque; |
| 1631 | |
| 1632 | return *lprop->child; |
| 1633 | } |
| 1634 | |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1635 | static void object_release_link_property(Object *obj, const char *name, |
| 1636 | void *opaque) |
| 1637 | { |
| 1638 | LinkProperty *prop = opaque; |
| 1639 | |
Marc-André Lureau | 265b578 | 2018-05-31 21:51:17 +0200 | [diff] [blame] | 1640 | if ((prop->flags & OBJ_PROP_LINK_STRONG) && *prop->child) { |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1641 | object_unref(*prop->child); |
| 1642 | } |
| 1643 | g_free(prop); |
| 1644 | } |
| 1645 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1646 | void object_property_add_link(Object *obj, const char *name, |
| 1647 | const char *type, Object **child, |
Igor Mammedov | 8f5d58e | 2017-07-14 10:14:50 +0800 | [diff] [blame] | 1648 | void (*check)(const Object *, const char *, |
Stefan Hajnoczi | 39f72ef | 2014-03-19 08:58:56 +0100 | [diff] [blame] | 1649 | Object *, Error **), |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1650 | ObjectPropertyLinkFlags flags, |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1651 | Error **errp) |
| 1652 | { |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1653 | Error *local_err = NULL; |
| 1654 | LinkProperty *prop = g_malloc(sizeof(*prop)); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1655 | gchar *full_type; |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1656 | ObjectProperty *op; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1657 | |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1658 | prop->child = child; |
Stefan Hajnoczi | 39f72ef | 2014-03-19 08:58:56 +0100 | [diff] [blame] | 1659 | prop->check = check; |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1660 | prop->flags = flags; |
| 1661 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1662 | full_type = g_strdup_printf("link<%s>", type); |
| 1663 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1664 | op = object_property_add(obj, name, full_type, |
| 1665 | object_get_link_property, |
| 1666 | check ? object_set_link_property : NULL, |
| 1667 | object_release_link_property, |
| 1668 | prop, |
| 1669 | &local_err); |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1670 | if (local_err) { |
| 1671 | error_propagate(errp, local_err); |
| 1672 | g_free(prop); |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1673 | goto out; |
Stefan Hajnoczi | 9561fda | 2014-03-19 08:58:55 +0100 | [diff] [blame] | 1674 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1675 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1676 | op->resolve = object_resolve_link_property; |
| 1677 | |
| 1678 | out: |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1679 | g_free(full_type); |
| 1680 | } |
| 1681 | |
Paolo Bonzini | fb9e7e3 | 2015-05-05 18:29:00 +0200 | [diff] [blame] | 1682 | void object_property_add_const_link(Object *obj, const char *name, |
| 1683 | Object *target, Error **errp) |
| 1684 | { |
| 1685 | char *link_type; |
| 1686 | ObjectProperty *op; |
| 1687 | |
| 1688 | link_type = g_strdup_printf("link<%s>", object_get_typename(target)); |
| 1689 | op = object_property_add(obj, name, link_type, |
| 1690 | object_get_child_property, NULL, |
| 1691 | NULL, target, errp); |
| 1692 | if (op != NULL) { |
| 1693 | op->resolve = object_resolve_child_property; |
| 1694 | } |
| 1695 | g_free(link_type); |
| 1696 | } |
| 1697 | |
Stefan Hajnoczi | 11f590b | 2014-03-03 11:30:02 +0100 | [diff] [blame] | 1698 | gchar *object_get_canonical_path_component(Object *obj) |
| 1699 | { |
| 1700 | ObjectProperty *prop = NULL; |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1701 | GHashTableIter iter; |
Stefan Hajnoczi | 11f590b | 2014-03-03 11:30:02 +0100 | [diff] [blame] | 1702 | |
Paolo Bonzini | 770dec2 | 2018-04-30 11:44:17 +0200 | [diff] [blame] | 1703 | if (obj->parent == NULL) { |
| 1704 | return NULL; |
| 1705 | } |
Stefan Hajnoczi | 11f590b | 2014-03-03 11:30:02 +0100 | [diff] [blame] | 1706 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1707 | g_hash_table_iter_init(&iter, obj->parent->properties); |
| 1708 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { |
Stefan Hajnoczi | 11f590b | 2014-03-03 11:30:02 +0100 | [diff] [blame] | 1709 | if (!object_property_is_child(prop)) { |
| 1710 | continue; |
| 1711 | } |
| 1712 | |
| 1713 | if (prop->opaque == obj) { |
| 1714 | return g_strdup(prop->name); |
| 1715 | } |
| 1716 | } |
| 1717 | |
| 1718 | /* obj had a parent but was not a child, should never happen */ |
| 1719 | g_assert_not_reached(); |
| 1720 | return NULL; |
| 1721 | } |
| 1722 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1723 | gchar *object_get_canonical_path(Object *obj) |
| 1724 | { |
| 1725 | Object *root = object_get_root(); |
Stefan Hajnoczi | 11f590b | 2014-03-03 11:30:02 +0100 | [diff] [blame] | 1726 | char *newpath, *path = NULL; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1727 | |
Paolo Bonzini | e40077f | 2018-05-30 18:16:04 +0200 | [diff] [blame] | 1728 | if (obj == root) { |
| 1729 | return g_strdup("/"); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1730 | } |
| 1731 | |
Paolo Bonzini | e40077f | 2018-05-30 18:16:04 +0200 | [diff] [blame] | 1732 | do { |
| 1733 | char *component = object_get_canonical_path_component(obj); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1734 | |
Paolo Bonzini | e40077f | 2018-05-30 18:16:04 +0200 | [diff] [blame] | 1735 | if (!component) { |
| 1736 | /* A canonical path must be complete, so discard what was |
| 1737 | * collected so far. |
| 1738 | */ |
| 1739 | g_free(path); |
| 1740 | return NULL; |
| 1741 | } |
| 1742 | |
| 1743 | newpath = g_strdup_printf("/%s%s", component, path ? path : ""); |
| 1744 | g_free(path); |
| 1745 | g_free(component); |
| 1746 | path = newpath; |
| 1747 | obj = obj->parent; |
| 1748 | } while (obj != root); |
| 1749 | |
| 1750 | return path; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1751 | } |
| 1752 | |
Andreas Färber | 3e84b48 | 2013-01-15 02:55:10 +0100 | [diff] [blame] | 1753 | Object *object_resolve_path_component(Object *parent, const gchar *part) |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1754 | { |
Paolo Bonzini | 89bfe00 | 2012-04-12 18:00:18 +0200 | [diff] [blame] | 1755 | ObjectProperty *prop = object_property_find(parent, part, NULL); |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1756 | if (prop == NULL) { |
| 1757 | return NULL; |
| 1758 | } |
| 1759 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 1760 | if (prop->resolve) { |
| 1761 | return prop->resolve(parent, prop->opaque, part); |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1762 | } else { |
| 1763 | return NULL; |
| 1764 | } |
| 1765 | } |
| 1766 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1767 | static Object *object_resolve_abs_path(Object *parent, |
| 1768 | gchar **parts, |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1769 | const char *typename, |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1770 | int index) |
| 1771 | { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1772 | Object *child; |
| 1773 | |
| 1774 | if (parts[index] == NULL) { |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1775 | return object_dynamic_cast(parent, typename); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1776 | } |
| 1777 | |
| 1778 | if (strcmp(parts[index], "") == 0) { |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1779 | return object_resolve_abs_path(parent, parts, typename, index + 1); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1780 | } |
| 1781 | |
Paolo Bonzini | a612b2a | 2012-03-27 18:38:45 +0200 | [diff] [blame] | 1782 | child = object_resolve_path_component(parent, parts[index]); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1783 | if (!child) { |
| 1784 | return NULL; |
| 1785 | } |
| 1786 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1787 | return object_resolve_abs_path(child, parts, typename, index + 1); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1788 | } |
| 1789 | |
| 1790 | static Object *object_resolve_partial_path(Object *parent, |
| 1791 | gchar **parts, |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1792 | const char *typename, |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1793 | bool *ambiguous) |
| 1794 | { |
| 1795 | Object *obj; |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1796 | GHashTableIter iter; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1797 | ObjectProperty *prop; |
| 1798 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1799 | obj = object_resolve_abs_path(parent, parts, typename, 0); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1800 | |
Pavel Fedin | b604a85 | 2015-10-13 13:37:45 +0100 | [diff] [blame] | 1801 | g_hash_table_iter_init(&iter, parent->properties); |
| 1802 | while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1803 | Object *found; |
| 1804 | |
Andreas Färber | 5d9d3f4 | 2012-05-27 00:32:40 +0200 | [diff] [blame] | 1805 | if (!object_property_is_child(prop)) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1806 | continue; |
| 1807 | } |
| 1808 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1809 | found = object_resolve_partial_path(prop->opaque, parts, |
| 1810 | typename, ambiguous); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1811 | if (found) { |
| 1812 | if (obj) { |
Eduardo Habkost | ebcc479 | 2017-07-07 18:30:52 -0300 | [diff] [blame] | 1813 | *ambiguous = true; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1814 | return NULL; |
| 1815 | } |
| 1816 | obj = found; |
| 1817 | } |
| 1818 | |
Eduardo Habkost | ebcc479 | 2017-07-07 18:30:52 -0300 | [diff] [blame] | 1819 | if (*ambiguous) { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1820 | return NULL; |
| 1821 | } |
| 1822 | } |
| 1823 | |
| 1824 | return obj; |
| 1825 | } |
| 1826 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1827 | Object *object_resolve_path_type(const char *path, const char *typename, |
Eduardo Habkost | ebcc479 | 2017-07-07 18:30:52 -0300 | [diff] [blame] | 1828 | bool *ambiguousp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1829 | { |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1830 | Object *obj; |
| 1831 | gchar **parts; |
| 1832 | |
| 1833 | parts = g_strsplit(path, "/", 0); |
Paolo Bonzini | 2e1103f | 2013-04-18 18:44:02 +0200 | [diff] [blame] | 1834 | assert(parts); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1835 | |
Paolo Bonzini | 2e1103f | 2013-04-18 18:44:02 +0200 | [diff] [blame] | 1836 | if (parts[0] == NULL || strcmp(parts[0], "") != 0) { |
Eduardo Habkost | ebcc479 | 2017-07-07 18:30:52 -0300 | [diff] [blame] | 1837 | bool ambiguous = false; |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1838 | obj = object_resolve_partial_path(object_get_root(), parts, |
Eduardo Habkost | ebcc479 | 2017-07-07 18:30:52 -0300 | [diff] [blame] | 1839 | typename, &ambiguous); |
| 1840 | if (ambiguousp) { |
| 1841 | *ambiguousp = ambiguous; |
| 1842 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1843 | } else { |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1844 | obj = object_resolve_abs_path(object_get_root(), parts, typename, 1); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1845 | } |
| 1846 | |
| 1847 | g_strfreev(parts); |
| 1848 | |
| 1849 | return obj; |
| 1850 | } |
| 1851 | |
Paolo Bonzini | 02fe2db | 2012-02-03 11:21:01 +0100 | [diff] [blame] | 1852 | Object *object_resolve_path(const char *path, bool *ambiguous) |
| 1853 | { |
| 1854 | return object_resolve_path_type(path, TYPE_OBJECT, ambiguous); |
| 1855 | } |
| 1856 | |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1857 | typedef struct StringProperty |
| 1858 | { |
| 1859 | char *(*get)(Object *, Error **); |
| 1860 | void (*set)(Object *, const char *, Error **); |
| 1861 | } StringProperty; |
| 1862 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1863 | static void property_get_str(Object *obj, Visitor *v, const char *name, |
| 1864 | void *opaque, Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1865 | { |
| 1866 | StringProperty *prop = opaque; |
| 1867 | char *value; |
Markus Armbruster | e1c8237 | 2015-08-25 20:00:46 +0200 | [diff] [blame] | 1868 | Error *err = NULL; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1869 | |
Markus Armbruster | e1c8237 | 2015-08-25 20:00:46 +0200 | [diff] [blame] | 1870 | value = prop->get(obj, &err); |
| 1871 | if (err) { |
| 1872 | error_propagate(errp, err); |
| 1873 | return; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1874 | } |
Markus Armbruster | e1c8237 | 2015-08-25 20:00:46 +0200 | [diff] [blame] | 1875 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1876 | visit_type_str(v, name, &value, errp); |
Markus Armbruster | e1c8237 | 2015-08-25 20:00:46 +0200 | [diff] [blame] | 1877 | g_free(value); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1878 | } |
| 1879 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1880 | static void property_set_str(Object *obj, Visitor *v, const char *name, |
| 1881 | void *opaque, Error **errp) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1882 | { |
| 1883 | StringProperty *prop = opaque; |
| 1884 | char *value; |
| 1885 | Error *local_err = NULL; |
| 1886 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1887 | visit_type_str(v, name, &value, &local_err); |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1888 | if (local_err) { |
| 1889 | error_propagate(errp, local_err); |
| 1890 | return; |
| 1891 | } |
| 1892 | |
| 1893 | prop->set(obj, value, errp); |
| 1894 | g_free(value); |
| 1895 | } |
| 1896 | |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1897 | static void property_release_str(Object *obj, const char *name, |
| 1898 | void *opaque) |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1899 | { |
| 1900 | StringProperty *prop = opaque; |
| 1901 | g_free(prop); |
| 1902 | } |
| 1903 | |
| 1904 | void object_property_add_str(Object *obj, const char *name, |
| 1905 | char *(*get)(Object *, Error **), |
| 1906 | void (*set)(Object *, const char *, Error **), |
| 1907 | Error **errp) |
| 1908 | { |
Stefan Hajnoczi | a01aedc | 2014-03-04 15:28:18 +0100 | [diff] [blame] | 1909 | Error *local_err = NULL; |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1910 | StringProperty *prop = g_malloc0(sizeof(*prop)); |
| 1911 | |
| 1912 | prop->get = get; |
| 1913 | prop->set = set; |
| 1914 | |
| 1915 | object_property_add(obj, name, "string", |
Paolo Bonzini | 7b7b7d1 | 2012-02-01 17:16:22 +0100 | [diff] [blame] | 1916 | get ? property_get_str : NULL, |
| 1917 | set ? property_set_str : NULL, |
| 1918 | property_release_str, |
Stefan Hajnoczi | a01aedc | 2014-03-04 15:28:18 +0100 | [diff] [blame] | 1919 | prop, &local_err); |
| 1920 | if (local_err) { |
| 1921 | error_propagate(errp, local_err); |
| 1922 | g_free(prop); |
| 1923 | } |
Anthony Liguori | 57c9faf | 2012-01-30 08:55:55 -0600 | [diff] [blame] | 1924 | } |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 1925 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 1926 | void object_class_property_add_str(ObjectClass *klass, const char *name, |
| 1927 | char *(*get)(Object *, Error **), |
| 1928 | void (*set)(Object *, const char *, |
| 1929 | Error **), |
| 1930 | Error **errp) |
| 1931 | { |
| 1932 | Error *local_err = NULL; |
| 1933 | StringProperty *prop = g_malloc0(sizeof(*prop)); |
| 1934 | |
| 1935 | prop->get = get; |
| 1936 | prop->set = set; |
| 1937 | |
| 1938 | object_class_property_add(klass, name, "string", |
| 1939 | get ? property_get_str : NULL, |
| 1940 | set ? property_set_str : NULL, |
| 1941 | property_release_str, |
| 1942 | prop, &local_err); |
| 1943 | if (local_err) { |
| 1944 | error_propagate(errp, local_err); |
| 1945 | g_free(prop); |
| 1946 | } |
| 1947 | } |
| 1948 | |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 1949 | typedef struct BoolProperty |
| 1950 | { |
| 1951 | bool (*get)(Object *, Error **); |
| 1952 | void (*set)(Object *, bool, Error **); |
| 1953 | } BoolProperty; |
| 1954 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1955 | static void property_get_bool(Object *obj, Visitor *v, const char *name, |
| 1956 | void *opaque, Error **errp) |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 1957 | { |
| 1958 | BoolProperty *prop = opaque; |
| 1959 | bool value; |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1960 | Error *err = NULL; |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 1961 | |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 1962 | value = prop->get(obj, &err); |
| 1963 | if (err) { |
| 1964 | error_propagate(errp, err); |
| 1965 | return; |
| 1966 | } |
| 1967 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1968 | visit_type_bool(v, name, &value, errp); |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 1969 | } |
| 1970 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 1971 | static void property_set_bool(Object *obj, Visitor *v, const char *name, |
| 1972 | void *opaque, Error **errp) |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 1973 | { |
| 1974 | BoolProperty *prop = opaque; |
| 1975 | bool value; |
| 1976 | Error *local_err = NULL; |
| 1977 | |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 1978 | visit_type_bool(v, name, &value, &local_err); |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 1979 | if (local_err) { |
| 1980 | error_propagate(errp, local_err); |
| 1981 | return; |
| 1982 | } |
| 1983 | |
| 1984 | prop->set(obj, value, errp); |
| 1985 | } |
| 1986 | |
| 1987 | static void property_release_bool(Object *obj, const char *name, |
| 1988 | void *opaque) |
| 1989 | { |
| 1990 | BoolProperty *prop = opaque; |
| 1991 | g_free(prop); |
| 1992 | } |
| 1993 | |
| 1994 | void object_property_add_bool(Object *obj, const char *name, |
| 1995 | bool (*get)(Object *, Error **), |
| 1996 | void (*set)(Object *, bool, Error **), |
| 1997 | Error **errp) |
| 1998 | { |
Stefan Hajnoczi | a01aedc | 2014-03-04 15:28:18 +0100 | [diff] [blame] | 1999 | Error *local_err = NULL; |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 2000 | BoolProperty *prop = g_malloc0(sizeof(*prop)); |
| 2001 | |
| 2002 | prop->get = get; |
| 2003 | prop->set = set; |
| 2004 | |
| 2005 | object_property_add(obj, name, "bool", |
| 2006 | get ? property_get_bool : NULL, |
| 2007 | set ? property_set_bool : NULL, |
| 2008 | property_release_bool, |
Stefan Hajnoczi | a01aedc | 2014-03-04 15:28:18 +0100 | [diff] [blame] | 2009 | prop, &local_err); |
| 2010 | if (local_err) { |
| 2011 | error_propagate(errp, local_err); |
| 2012 | g_free(prop); |
| 2013 | } |
Anthony Liguori | 0e55884 | 2012-06-25 10:32:46 -0500 | [diff] [blame] | 2014 | } |
| 2015 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2016 | void object_class_property_add_bool(ObjectClass *klass, const char *name, |
| 2017 | bool (*get)(Object *, Error **), |
| 2018 | void (*set)(Object *, bool, Error **), |
| 2019 | Error **errp) |
| 2020 | { |
| 2021 | Error *local_err = NULL; |
| 2022 | BoolProperty *prop = g_malloc0(sizeof(*prop)); |
| 2023 | |
| 2024 | prop->get = get; |
| 2025 | prop->set = set; |
| 2026 | |
| 2027 | object_class_property_add(klass, name, "bool", |
| 2028 | get ? property_get_bool : NULL, |
| 2029 | set ? property_set_bool : NULL, |
| 2030 | property_release_bool, |
| 2031 | prop, &local_err); |
| 2032 | if (local_err) { |
| 2033 | error_propagate(errp, local_err); |
| 2034 | g_free(prop); |
| 2035 | } |
| 2036 | } |
| 2037 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2038 | static void property_get_enum(Object *obj, Visitor *v, const char *name, |
| 2039 | void *opaque, Error **errp) |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2040 | { |
| 2041 | EnumProperty *prop = opaque; |
| 2042 | int value; |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 2043 | Error *err = NULL; |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2044 | |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 2045 | value = prop->get(obj, &err); |
| 2046 | if (err) { |
| 2047 | error_propagate(errp, err); |
| 2048 | return; |
| 2049 | } |
| 2050 | |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 2051 | visit_type_enum(v, name, &value, prop->lookup, errp); |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2052 | } |
| 2053 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2054 | static void property_set_enum(Object *obj, Visitor *v, const char *name, |
| 2055 | void *opaque, Error **errp) |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2056 | { |
| 2057 | EnumProperty *prop = opaque; |
| 2058 | int value; |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 2059 | Error *err = NULL; |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2060 | |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 2061 | visit_type_enum(v, name, &value, prop->lookup, &err); |
Markus Armbruster | 4715d42 | 2015-08-25 20:00:45 +0200 | [diff] [blame] | 2062 | if (err) { |
| 2063 | error_propagate(errp, err); |
| 2064 | return; |
| 2065 | } |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2066 | prop->set(obj, value, errp); |
| 2067 | } |
| 2068 | |
| 2069 | static void property_release_enum(Object *obj, const char *name, |
| 2070 | void *opaque) |
| 2071 | { |
| 2072 | EnumProperty *prop = opaque; |
| 2073 | g_free(prop); |
| 2074 | } |
| 2075 | |
| 2076 | void object_property_add_enum(Object *obj, const char *name, |
| 2077 | const char *typename, |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 2078 | const QEnumLookup *lookup, |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2079 | int (*get)(Object *, Error **), |
| 2080 | void (*set)(Object *, int, Error **), |
| 2081 | Error **errp) |
| 2082 | { |
| 2083 | Error *local_err = NULL; |
| 2084 | EnumProperty *prop = g_malloc(sizeof(*prop)); |
| 2085 | |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 2086 | prop->lookup = lookup; |
Daniel P. Berrange | a8e3fbe | 2015-05-13 17:14:08 +0100 | [diff] [blame] | 2087 | prop->get = get; |
| 2088 | prop->set = set; |
| 2089 | |
| 2090 | object_property_add(obj, name, typename, |
| 2091 | get ? property_get_enum : NULL, |
| 2092 | set ? property_set_enum : NULL, |
| 2093 | property_release_enum, |
| 2094 | prop, &local_err); |
| 2095 | if (local_err) { |
| 2096 | error_propagate(errp, local_err); |
| 2097 | g_free(prop); |
| 2098 | } |
| 2099 | } |
| 2100 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2101 | void object_class_property_add_enum(ObjectClass *klass, const char *name, |
| 2102 | const char *typename, |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 2103 | const QEnumLookup *lookup, |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2104 | int (*get)(Object *, Error **), |
| 2105 | void (*set)(Object *, int, Error **), |
| 2106 | Error **errp) |
| 2107 | { |
| 2108 | Error *local_err = NULL; |
| 2109 | EnumProperty *prop = g_malloc(sizeof(*prop)); |
| 2110 | |
Marc-André Lureau | f7abe0e | 2017-08-24 10:46:10 +0200 | [diff] [blame] | 2111 | prop->lookup = lookup; |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2112 | prop->get = get; |
| 2113 | prop->set = set; |
| 2114 | |
| 2115 | object_class_property_add(klass, name, typename, |
| 2116 | get ? property_get_enum : NULL, |
| 2117 | set ? property_set_enum : NULL, |
| 2118 | property_release_enum, |
| 2119 | prop, &local_err); |
| 2120 | if (local_err) { |
| 2121 | error_propagate(errp, local_err); |
| 2122 | g_free(prop); |
| 2123 | } |
| 2124 | } |
| 2125 | |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2126 | typedef struct TMProperty { |
| 2127 | void (*get)(Object *, struct tm *, Error **); |
| 2128 | } TMProperty; |
| 2129 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2130 | static void property_get_tm(Object *obj, Visitor *v, const char *name, |
| 2131 | void *opaque, Error **errp) |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2132 | { |
| 2133 | TMProperty *prop = opaque; |
| 2134 | Error *err = NULL; |
| 2135 | struct tm value; |
| 2136 | |
| 2137 | prop->get(obj, &value, &err); |
| 2138 | if (err) { |
| 2139 | goto out; |
| 2140 | } |
| 2141 | |
Eric Blake | 337283d | 2016-01-29 06:48:57 -0700 | [diff] [blame] | 2142 | visit_start_struct(v, name, NULL, 0, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2143 | if (err) { |
| 2144 | goto out; |
| 2145 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2146 | visit_type_int32(v, "tm_year", &value.tm_year, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2147 | if (err) { |
| 2148 | goto out_end; |
| 2149 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2150 | visit_type_int32(v, "tm_mon", &value.tm_mon, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2151 | if (err) { |
| 2152 | goto out_end; |
| 2153 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2154 | visit_type_int32(v, "tm_mday", &value.tm_mday, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2155 | if (err) { |
| 2156 | goto out_end; |
| 2157 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2158 | visit_type_int32(v, "tm_hour", &value.tm_hour, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2159 | if (err) { |
| 2160 | goto out_end; |
| 2161 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2162 | visit_type_int32(v, "tm_min", &value.tm_min, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2163 | if (err) { |
| 2164 | goto out_end; |
| 2165 | } |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2166 | visit_type_int32(v, "tm_sec", &value.tm_sec, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2167 | if (err) { |
| 2168 | goto out_end; |
| 2169 | } |
Eric Blake | 15c2f66 | 2016-04-28 15:45:27 -0600 | [diff] [blame] | 2170 | visit_check_struct(v, &err); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2171 | out_end: |
Eric Blake | 1158bb2 | 2016-06-09 10:48:34 -0600 | [diff] [blame] | 2172 | visit_end_struct(v, NULL); |
David Gibson | 8e099d1 | 2015-02-06 14:55:45 +1100 | [diff] [blame] | 2173 | out: |
| 2174 | error_propagate(errp, err); |
| 2175 | |
| 2176 | } |
| 2177 | |
| 2178 | static void property_release_tm(Object *obj, const char *name, |
| 2179 | void *opaque) |
| 2180 | { |
| 2181 | TMProperty *prop = opaque; |
| 2182 | g_free(prop); |
| 2183 | } |
| 2184 | |
| 2185 | void object_property_add_tm(Object *obj, const char *name, |
| 2186 | void (*get)(Object *, struct tm *, Error **), |
| 2187 | Error **errp) |
| 2188 | { |
| 2189 | Error *local_err = NULL; |
| 2190 | TMProperty *prop = g_malloc0(sizeof(*prop)); |
| 2191 | |
| 2192 | prop->get = get; |
| 2193 | |
| 2194 | object_property_add(obj, name, "struct tm", |
| 2195 | get ? property_get_tm : NULL, NULL, |
| 2196 | property_release_tm, |
| 2197 | prop, &local_err); |
| 2198 | if (local_err) { |
| 2199 | error_propagate(errp, local_err); |
| 2200 | g_free(prop); |
| 2201 | } |
| 2202 | } |
| 2203 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2204 | void object_class_property_add_tm(ObjectClass *klass, const char *name, |
| 2205 | void (*get)(Object *, struct tm *, Error **), |
| 2206 | Error **errp) |
| 2207 | { |
| 2208 | Error *local_err = NULL; |
| 2209 | TMProperty *prop = g_malloc0(sizeof(*prop)); |
| 2210 | |
| 2211 | prop->get = get; |
| 2212 | |
| 2213 | object_class_property_add(klass, name, "struct tm", |
| 2214 | get ? property_get_tm : NULL, NULL, |
| 2215 | property_release_tm, |
| 2216 | prop, &local_err); |
| 2217 | if (local_err) { |
| 2218 | error_propagate(errp, local_err); |
| 2219 | g_free(prop); |
| 2220 | } |
| 2221 | } |
| 2222 | |
Paolo Bonzini | 2f262e0 | 2012-04-02 17:33:51 +0200 | [diff] [blame] | 2223 | static char *qdev_get_type(Object *obj, Error **errp) |
| 2224 | { |
| 2225 | return g_strdup(object_get_typename(obj)); |
| 2226 | } |
| 2227 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2228 | static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *name, |
| 2229 | void *opaque, Error **errp) |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2230 | { |
| 2231 | uint8_t value = *(uint8_t *)opaque; |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2232 | visit_type_uint8(v, name, &value, errp); |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2233 | } |
| 2234 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2235 | static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name, |
| 2236 | void *opaque, Error **errp) |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2237 | { |
| 2238 | uint16_t value = *(uint16_t *)opaque; |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2239 | visit_type_uint16(v, name, &value, errp); |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2240 | } |
| 2241 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2242 | static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name, |
| 2243 | void *opaque, Error **errp) |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2244 | { |
| 2245 | uint32_t value = *(uint32_t *)opaque; |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2246 | visit_type_uint32(v, name, &value, errp); |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2247 | } |
| 2248 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2249 | static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name, |
| 2250 | void *opaque, Error **errp) |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2251 | { |
| 2252 | uint64_t value = *(uint64_t *)opaque; |
Eric Blake | 51e72bc | 2016-01-29 06:48:54 -0700 | [diff] [blame] | 2253 | visit_type_uint64(v, name, &value, errp); |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2254 | } |
| 2255 | |
| 2256 | void object_property_add_uint8_ptr(Object *obj, const char *name, |
| 2257 | const uint8_t *v, Error **errp) |
| 2258 | { |
| 2259 | object_property_add(obj, name, "uint8", property_get_uint8_ptr, |
| 2260 | NULL, NULL, (void *)v, errp); |
| 2261 | } |
| 2262 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2263 | void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name, |
| 2264 | const uint8_t *v, Error **errp) |
| 2265 | { |
| 2266 | object_class_property_add(klass, name, "uint8", property_get_uint8_ptr, |
| 2267 | NULL, NULL, (void *)v, errp); |
| 2268 | } |
| 2269 | |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2270 | void object_property_add_uint16_ptr(Object *obj, const char *name, |
| 2271 | const uint16_t *v, Error **errp) |
| 2272 | { |
| 2273 | object_property_add(obj, name, "uint16", property_get_uint16_ptr, |
| 2274 | NULL, NULL, (void *)v, errp); |
| 2275 | } |
| 2276 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2277 | void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name, |
| 2278 | const uint16_t *v, Error **errp) |
| 2279 | { |
| 2280 | object_class_property_add(klass, name, "uint16", property_get_uint16_ptr, |
| 2281 | NULL, NULL, (void *)v, errp); |
| 2282 | } |
| 2283 | |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2284 | void object_property_add_uint32_ptr(Object *obj, const char *name, |
| 2285 | const uint32_t *v, Error **errp) |
| 2286 | { |
| 2287 | object_property_add(obj, name, "uint32", property_get_uint32_ptr, |
| 2288 | NULL, NULL, (void *)v, errp); |
| 2289 | } |
| 2290 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2291 | void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name, |
| 2292 | const uint32_t *v, Error **errp) |
| 2293 | { |
| 2294 | object_class_property_add(klass, name, "uint32", property_get_uint32_ptr, |
| 2295 | NULL, NULL, (void *)v, errp); |
| 2296 | } |
| 2297 | |
Michael S. Tsirkin | e732ea6 | 2013-09-22 10:10:17 +0300 | [diff] [blame] | 2298 | void object_property_add_uint64_ptr(Object *obj, const char *name, |
| 2299 | const uint64_t *v, Error **errp) |
| 2300 | { |
| 2301 | object_property_add(obj, name, "uint64", property_get_uint64_ptr, |
| 2302 | NULL, NULL, (void *)v, errp); |
| 2303 | } |
| 2304 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2305 | void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name, |
| 2306 | const uint64_t *v, Error **errp) |
| 2307 | { |
| 2308 | object_class_property_add(klass, name, "uint64", property_get_uint64_ptr, |
| 2309 | NULL, NULL, (void *)v, errp); |
| 2310 | } |
| 2311 | |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2312 | typedef struct { |
| 2313 | Object *target_obj; |
Eduardo Habkost | 1590d26 | 2015-04-09 16:57:29 -0300 | [diff] [blame] | 2314 | char *target_name; |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2315 | } AliasProperty; |
| 2316 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2317 | static void property_get_alias(Object *obj, Visitor *v, const char *name, |
| 2318 | void *opaque, Error **errp) |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2319 | { |
| 2320 | AliasProperty *prop = opaque; |
| 2321 | |
| 2322 | object_property_get(prop->target_obj, v, prop->target_name, errp); |
| 2323 | } |
| 2324 | |
Eric Blake | d7bce99 | 2016-01-29 06:48:55 -0700 | [diff] [blame] | 2325 | static void property_set_alias(Object *obj, Visitor *v, const char *name, |
| 2326 | void *opaque, Error **errp) |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2327 | { |
| 2328 | AliasProperty *prop = opaque; |
| 2329 | |
| 2330 | object_property_set(prop->target_obj, v, prop->target_name, errp); |
| 2331 | } |
| 2332 | |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 2333 | static Object *property_resolve_alias(Object *obj, void *opaque, |
| 2334 | const gchar *part) |
| 2335 | { |
| 2336 | AliasProperty *prop = opaque; |
| 2337 | |
| 2338 | return object_resolve_path_component(prop->target_obj, prop->target_name); |
| 2339 | } |
| 2340 | |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2341 | static void property_release_alias(Object *obj, const char *name, void *opaque) |
| 2342 | { |
| 2343 | AliasProperty *prop = opaque; |
| 2344 | |
Eduardo Habkost | 1590d26 | 2015-04-09 16:57:29 -0300 | [diff] [blame] | 2345 | g_free(prop->target_name); |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2346 | g_free(prop); |
| 2347 | } |
| 2348 | |
| 2349 | void object_property_add_alias(Object *obj, const char *name, |
| 2350 | Object *target_obj, const char *target_name, |
| 2351 | Error **errp) |
| 2352 | { |
| 2353 | AliasProperty *prop; |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 2354 | ObjectProperty *op; |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2355 | ObjectProperty *target_prop; |
Paolo Bonzini | d190698 | 2014-06-10 11:17:35 +0200 | [diff] [blame] | 2356 | gchar *prop_type; |
Gonglei | 8ae9a9e | 2014-09-27 13:13:56 +0800 | [diff] [blame] | 2357 | Error *local_err = NULL; |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2358 | |
| 2359 | target_prop = object_property_find(target_obj, target_name, errp); |
| 2360 | if (!target_prop) { |
| 2361 | return; |
| 2362 | } |
| 2363 | |
Paolo Bonzini | d190698 | 2014-06-10 11:17:35 +0200 | [diff] [blame] | 2364 | if (object_property_is_child(target_prop)) { |
| 2365 | prop_type = g_strdup_printf("link%s", |
| 2366 | target_prop->type + strlen("child")); |
| 2367 | } else { |
| 2368 | prop_type = g_strdup(target_prop->type); |
| 2369 | } |
| 2370 | |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2371 | prop = g_malloc(sizeof(*prop)); |
| 2372 | prop->target_obj = target_obj; |
Eduardo Habkost | 1590d26 | 2015-04-09 16:57:29 -0300 | [diff] [blame] | 2373 | prop->target_name = g_strdup(target_name); |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2374 | |
Paolo Bonzini | d190698 | 2014-06-10 11:17:35 +0200 | [diff] [blame] | 2375 | op = object_property_add(obj, name, prop_type, |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 2376 | property_get_alias, |
| 2377 | property_set_alias, |
| 2378 | property_release_alias, |
Gonglei | 8ae9a9e | 2014-09-27 13:13:56 +0800 | [diff] [blame] | 2379 | prop, &local_err); |
| 2380 | if (local_err) { |
| 2381 | error_propagate(errp, local_err); |
| 2382 | g_free(prop); |
| 2383 | goto out; |
| 2384 | } |
Paolo Bonzini | 64607d0 | 2014-06-05 13:11:51 +0200 | [diff] [blame] | 2385 | op->resolve = property_resolve_alias; |
Paolo Bonzini | d190698 | 2014-06-10 11:17:35 +0200 | [diff] [blame] | 2386 | |
Andreas Färber | a18bb41 | 2015-03-27 17:34:10 +0100 | [diff] [blame] | 2387 | object_property_set_description(obj, op->name, |
Gonglei | 8074264 | 2014-10-07 14:33:21 +0800 | [diff] [blame] | 2388 | target_prop->description, |
| 2389 | &error_abort); |
| 2390 | |
Gonglei | 8ae9a9e | 2014-09-27 13:13:56 +0800 | [diff] [blame] | 2391 | out: |
Paolo Bonzini | d190698 | 2014-06-10 11:17:35 +0200 | [diff] [blame] | 2392 | g_free(prop_type); |
Stefan Hajnoczi | ef7c7ff | 2014-06-18 17:58:28 +0800 | [diff] [blame] | 2393 | } |
| 2394 | |
Gonglei | 8074264 | 2014-10-07 14:33:21 +0800 | [diff] [blame] | 2395 | void object_property_set_description(Object *obj, const char *name, |
| 2396 | const char *description, Error **errp) |
| 2397 | { |
| 2398 | ObjectProperty *op; |
| 2399 | |
| 2400 | op = object_property_find(obj, name, errp); |
| 2401 | if (!op) { |
| 2402 | return; |
| 2403 | } |
| 2404 | |
| 2405 | g_free(op->description); |
| 2406 | op->description = g_strdup(description); |
| 2407 | } |
| 2408 | |
Daniel P. Berrange | 16bf7f5 | 2015-10-13 13:37:46 +0100 | [diff] [blame] | 2409 | void object_class_property_set_description(ObjectClass *klass, |
| 2410 | const char *name, |
| 2411 | const char *description, |
| 2412 | Error **errp) |
| 2413 | { |
| 2414 | ObjectProperty *op; |
| 2415 | |
| 2416 | op = g_hash_table_lookup(klass->properties, name); |
| 2417 | if (!op) { |
| 2418 | error_setg(errp, "Property '.%s' not found", name); |
| 2419 | return; |
| 2420 | } |
| 2421 | |
| 2422 | g_free(op->description); |
| 2423 | op->description = g_strdup(description); |
| 2424 | } |
| 2425 | |
Paolo Bonzini | 2f262e0 | 2012-04-02 17:33:51 +0200 | [diff] [blame] | 2426 | static void object_instance_init(Object *obj) |
| 2427 | { |
| 2428 | object_property_add_str(obj, "type", qdev_get_type, NULL, NULL); |
| 2429 | } |
| 2430 | |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 2431 | static void register_types(void) |
| 2432 | { |
| 2433 | static TypeInfo interface_info = { |
| 2434 | .name = TYPE_INTERFACE, |
Anthony Liguori | 33e95c6 | 2012-08-10 13:16:10 +1000 | [diff] [blame] | 2435 | .class_size = sizeof(InterfaceClass), |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 2436 | .abstract = true, |
| 2437 | }; |
| 2438 | |
| 2439 | static TypeInfo object_info = { |
| 2440 | .name = TYPE_OBJECT, |
| 2441 | .instance_size = sizeof(Object), |
Paolo Bonzini | 2f262e0 | 2012-04-02 17:33:51 +0200 | [diff] [blame] | 2442 | .instance_init = object_instance_init, |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 2443 | .abstract = true, |
| 2444 | }; |
| 2445 | |
Paolo Bonzini | 049cb3c | 2012-04-04 15:58:40 +0200 | [diff] [blame] | 2446 | type_interface = type_register_internal(&interface_info); |
| 2447 | type_register_internal(&object_info); |
Paolo Bonzini | 745549c | 2012-03-31 16:45:54 +0200 | [diff] [blame] | 2448 | } |
| 2449 | |
| 2450 | type_init(register_types) |