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-rw-r--r--qom/object.c299
1 files changed, 229 insertions, 70 deletions
diff --git a/qom/object.c b/qom/object.c
index 0d971ca897..555c8b9d07 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -19,8 +19,10 @@
#include "qapi/visitor.h"
#include "qapi/string-input-visitor.h"
#include "qapi/string-output-visitor.h"
+#include "qapi/qobject-input-visitor.h"
#include "qapi/qapi-builtin-visit.h"
#include "qapi/qmp/qerror.h"
+#include "qapi/qmp/qjson.h"
#include "trace.h"
/* TODO: replace QObject with a simpler visitor to avoid a dependency
@@ -173,7 +175,11 @@ static TypeImpl *type_get_parent(TypeImpl *type)
{
if (!type->parent_type && type->parent) {
type->parent_type = type_get_by_name(type->parent);
- g_assert(type->parent_type != NULL);
+ if (!type->parent_type) {
+ fprintf(stderr, "Type '%s' is missing its parent '%s'\n",
+ type->name, type->parent);
+ abort();
+ }
}
return type->parent_type;
@@ -264,6 +270,10 @@ static void object_property_free(gpointer data)
{
ObjectProperty *prop = data;
+ if (prop->defval) {
+ qobject_unref(prop->defval);
+ prop->defval = NULL;
+ }
g_free(prop->name);
g_free(prop->type);
g_free(prop->description);
@@ -303,10 +313,11 @@ static void type_initialize(TypeImpl *ti)
int i;
g_assert(parent->class_size <= ti->class_size);
+ g_assert(parent->instance_size <= ti->instance_size);
memcpy(ti->class, parent->class, parent->class_size);
ti->class->interfaces = NULL;
ti->class->properties = g_hash_table_new_full(
- g_str_hash, g_str_equal, g_free, object_property_free);
+ g_str_hash, g_str_equal, NULL, object_property_free);
for (e = parent->class->interfaces; e; e = e->next) {
InterfaceClass *iface = e->data;
@@ -317,6 +328,11 @@ static void type_initialize(TypeImpl *ti)
for (i = 0; i < ti->num_interfaces; i++) {
TypeImpl *t = type_get_by_name(ti->interfaces[i].typename);
+ if (!t) {
+ error_report("missing interface '%s' for object '%s'",
+ ti->interfaces[i].typename, parent->name);
+ abort();
+ }
for (e = ti->class->interfaces; e; e = e->next) {
TypeImpl *target_type = OBJECT_CLASS(e->data)->type;
@@ -333,7 +349,7 @@ static void type_initialize(TypeImpl *ti)
}
} else {
ti->class->properties = g_hash_table_new_full(
- g_str_hash, g_str_equal, g_free, object_property_free);
+ g_str_hash, g_str_equal, NULL, object_property_free);
}
ti->class->type = ti;
@@ -468,6 +484,19 @@ void object_apply_compat_props(Object *obj)
}
}
+static void object_class_property_init_all(Object *obj)
+{
+ ObjectPropertyIterator iter;
+ ObjectProperty *prop;
+
+ object_class_property_iter_init(&iter, object_get_class(obj));
+ while ((prop = object_property_iter_next(&iter))) {
+ if (prop->init) {
+ prop->init(obj, prop);
+ }
+ }
+}
+
static void object_initialize_with_type(void *data, size_t size, TypeImpl *type)
{
Object *obj = data;
@@ -481,6 +510,7 @@ static void object_initialize_with_type(void *data, size_t size, TypeImpl *type)
memset(obj, 0, type->instance_size);
obj->class = type->class;
object_ref(obj);
+ object_class_property_init_all(obj);
obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal,
NULL, object_property_free);
object_init_with_type(obj, type);
@@ -562,23 +592,22 @@ static inline bool object_property_is_child(ObjectProperty *prop)
static void object_property_del_all(Object *obj)
{
+ g_autoptr(GHashTable) done = g_hash_table_new(NULL, NULL);
ObjectProperty *prop;
- GHashTableIter iter;
- gpointer key, value;
+ ObjectPropertyIterator iter;
bool released;
do {
released = false;
- g_hash_table_iter_init(&iter, obj->properties);
- while (g_hash_table_iter_next(&iter, &key, &value)) {
- prop = value;
- if (prop->release) {
- prop->release(obj, prop->name, prop->opaque);
- prop->release = NULL;
- released = true;
- break;
+ object_property_iter_init(&iter, obj);
+ while ((prop = object_property_iter_next(&iter)) != NULL) {
+ if (g_hash_table_add(done, prop)) {
+ if (prop->release) {
+ prop->release(obj, prop->name, prop->opaque);
+ released = true;
+ break;
+ }
}
- g_hash_table_iter_remove(&iter);
}
} while (released);
@@ -1078,12 +1107,13 @@ GSList *object_class_get_list_sorted(const char *implements_type,
object_class_cmp);
}
-void object_ref(Object *obj)
+Object *object_ref(Object *obj)
{
if (!obj) {
- return;
+ return NULL;
}
atomic_inc(&obj->ref);
+ return obj;
}
void object_unref(Object *obj)
@@ -1177,7 +1207,7 @@ object_class_property_add(ObjectClass *klass,
prop->release = release;
prop->opaque = opaque;
- g_hash_table_insert(klass->properties, g_strdup(name), prop);
+ g_hash_table_insert(klass->properties, prop->name, prop);
return prop;
}
@@ -1414,6 +1444,45 @@ int64_t object_property_get_int(Object *obj, const char *name,
return retval;
}
+static void object_property_init_defval(Object *obj, ObjectProperty *prop)
+{
+ Visitor *v = qobject_input_visitor_new(prop->defval);
+
+ assert(prop->set != NULL);
+ prop->set(obj, v, prop->name, prop->opaque, &error_abort);
+
+ visit_free(v);
+}
+
+static void object_property_set_default(ObjectProperty *prop, QObject *defval)
+{
+ assert(!prop->defval);
+ assert(!prop->init);
+
+ prop->defval = defval;
+ prop->init = object_property_init_defval;
+}
+
+void object_property_set_default_bool(ObjectProperty *prop, bool value)
+{
+ object_property_set_default(prop, QOBJECT(qbool_from_bool(value)));
+}
+
+void object_property_set_default_str(ObjectProperty *prop, const char *value)
+{
+ object_property_set_default(prop, QOBJECT(qstring_from_str(value)));
+}
+
+void object_property_set_default_int(ObjectProperty *prop, int64_t value)
+{
+ object_property_set_default(prop, QOBJECT(qnum_from_int(value)));
+}
+
+void object_property_set_default_uint(ObjectProperty *prop, uint64_t value)
+{
+ object_property_set_default(prop, QOBJECT(qnum_from_uint(value)));
+}
+
void object_property_set_uint(Object *obj, uint64_t value,
const char *name, Error **errp)
{
@@ -1644,21 +1713,37 @@ void object_property_allow_set_link(const Object *obj, const char *name,
}
typedef struct {
- Object **child;
+ union {
+ Object **targetp;
+ Object *target; /* if OBJ_PROP_LINK_DIRECT, when holding the pointer */
+ ptrdiff_t offset; /* if OBJ_PROP_LINK_CLASS */
+ };
void (*check)(const Object *, const char *, Object *, Error **);
ObjectPropertyLinkFlags flags;
} LinkProperty;
+static Object **
+object_link_get_targetp(Object *obj, LinkProperty *lprop)
+{
+ if (lprop->flags & OBJ_PROP_LINK_DIRECT) {
+ return &lprop->target;
+ } else if (lprop->flags & OBJ_PROP_LINK_CLASS) {
+ return (void *)obj + lprop->offset;
+ } else {
+ return lprop->targetp;
+ }
+}
+
static void object_get_link_property(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
LinkProperty *lprop = opaque;
- Object **child = lprop->child;
+ Object **targetp = object_link_get_targetp(obj, lprop);
gchar *path;
- if (*child) {
- path = object_get_canonical_path(*child);
+ if (*targetp) {
+ path = object_get_canonical_path(*targetp);
visit_type_str(v, name, &path, errp);
g_free(path);
} else {
@@ -1713,8 +1798,8 @@ static void object_set_link_property(Object *obj, Visitor *v,
{
Error *local_err = NULL;
LinkProperty *prop = opaque;
- Object **child = prop->child;
- Object *old_target = *child;
+ Object **targetp = object_link_get_targetp(obj, prop);
+ Object *old_target = *targetp;
Object *new_target = NULL;
char *path = NULL;
@@ -1736,8 +1821,8 @@ static void object_set_link_property(Object *obj, Visitor *v,
return;
}
- *child = new_target;
- if (prop->flags == OBJ_PROP_LINK_STRONG) {
+ *targetp = new_target;
+ if (prop->flags & OBJ_PROP_LINK_STRONG) {
object_ref(new_target);
object_unref(old_target);
}
@@ -1747,33 +1832,40 @@ static Object *object_resolve_link_property(Object *parent, void *opaque, const
{
LinkProperty *lprop = opaque;
- return *lprop->child;
+ return *object_link_get_targetp(parent, lprop);
}
static void object_release_link_property(Object *obj, const char *name,
void *opaque)
{
LinkProperty *prop = opaque;
+ Object **targetp = object_link_get_targetp(obj, prop);
- if ((prop->flags & OBJ_PROP_LINK_STRONG) && *prop->child) {
- object_unref(*prop->child);
+ if ((prop->flags & OBJ_PROP_LINK_STRONG) && *targetp) {
+ object_unref(*targetp);
+ }
+ if (!(prop->flags & OBJ_PROP_LINK_CLASS)) {
+ g_free(prop);
}
- g_free(prop);
}
-void object_property_add_link(Object *obj, const char *name,
- const char *type, Object **child,
- void (*check)(const Object *, const char *,
- Object *, Error **),
- ObjectPropertyLinkFlags flags,
- Error **errp)
+static void object_add_link_prop(Object *obj, const char *name,
+ const char *type, void *ptr,
+ void (*check)(const Object *, const char *,
+ Object *, Error **),
+ ObjectPropertyLinkFlags flags,
+ Error **errp)
{
Error *local_err = NULL;
LinkProperty *prop = g_malloc(sizeof(*prop));
gchar *full_type;
ObjectProperty *op;
- prop->child = child;
+ if (flags & OBJ_PROP_LINK_DIRECT) {
+ prop->target = ptr;
+ } else {
+ prop->targetp = ptr;
+ }
prop->check = check;
prop->flags = flags;
@@ -1797,20 +1889,60 @@ out:
g_free(full_type);
}
-void object_property_add_const_link(Object *obj, const char *name,
- Object *target, Error **errp)
+void object_property_add_link(Object *obj, const char *name,
+ const char *type, Object **targetp,
+ void (*check)(const Object *, const char *,
+ Object *, Error **),
+ ObjectPropertyLinkFlags flags,
+ Error **errp)
{
- char *link_type;
+ object_add_link_prop(obj, name, type, targetp, check, flags, errp);
+}
+
+ObjectProperty *
+object_class_property_add_link(ObjectClass *oc,
+ const char *name,
+ const char *type, ptrdiff_t offset,
+ void (*check)(const Object *obj, const char *name,
+ Object *val, Error **errp),
+ ObjectPropertyLinkFlags flags,
+ Error **errp)
+{
+ Error *local_err = NULL;
+ LinkProperty *prop = g_new0(LinkProperty, 1);
+ gchar *full_type;
ObjectProperty *op;
- link_type = g_strdup_printf("link<%s>", object_get_typename(target));
- op = object_property_add(obj, name, link_type,
- object_get_child_property, NULL,
- NULL, target, errp);
- if (op != NULL) {
- op->resolve = object_resolve_child_property;
+ prop->offset = offset;
+ prop->check = check;
+ prop->flags = flags | OBJ_PROP_LINK_CLASS;
+
+ full_type = g_strdup_printf("link<%s>", type);
+
+ op = object_class_property_add(oc, name, full_type,
+ object_get_link_property,
+ check ? object_set_link_property : NULL,
+ object_release_link_property,
+ prop,
+ &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ g_free(prop);
+ goto out;
}
- g_free(link_type);
+
+ op->resolve = object_resolve_link_property;
+
+out:
+ g_free(full_type);
+ return op;
+}
+
+void object_property_add_const_link(Object *obj, const char *name,
+ Object *target, Error **errp)
+{
+ object_add_link_prop(obj, name, object_get_typename(target), target,
+ NULL, OBJ_PROP_LINK_DIRECT, errp);
}
gchar *object_get_canonical_path_component(Object *obj)
@@ -2041,7 +2173,8 @@ void object_property_add_str(Object *obj, const char *name,
}
}
-void object_class_property_add_str(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_str(ObjectClass *klass, const char *name,
char *(*get)(Object *, Error **),
void (*set)(Object *, const char *,
Error **),
@@ -2049,19 +2182,22 @@ void object_class_property_add_str(ObjectClass *klass, const char *name,
{
Error *local_err = NULL;
StringProperty *prop = g_malloc0(sizeof(*prop));
+ ObjectProperty *rv;
prop->get = get;
prop->set = set;
- object_class_property_add(klass, name, "string",
+ rv = object_class_property_add(klass, name, "string",
get ? property_get_str : NULL,
set ? property_set_str : NULL,
- property_release_str,
+ NULL,
prop, &local_err);
if (local_err) {
error_propagate(errp, local_err);
g_free(prop);
}
+
+ return rv;
}
typedef struct BoolProperty
@@ -2131,26 +2267,30 @@ void object_property_add_bool(Object *obj, const char *name,
}
}
-void object_class_property_add_bool(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_bool(ObjectClass *klass, const char *name,
bool (*get)(Object *, Error **),
void (*set)(Object *, bool, Error **),
Error **errp)
{
Error *local_err = NULL;
BoolProperty *prop = g_malloc0(sizeof(*prop));
+ ObjectProperty *rv;
prop->get = get;
prop->set = set;
- object_class_property_add(klass, name, "bool",
+ rv = object_class_property_add(klass, name, "bool",
get ? property_get_bool : NULL,
set ? property_set_bool : NULL,
- property_release_bool,
+ NULL,
prop, &local_err);
if (local_err) {
error_propagate(errp, local_err);
g_free(prop);
}
+
+ return rv;
}
static void property_get_enum(Object *obj, Visitor *v, const char *name,
@@ -2216,7 +2356,8 @@ void object_property_add_enum(Object *obj, const char *name,
}
}
-void object_class_property_add_enum(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_enum(ObjectClass *klass, const char *name,
const char *typename,
const QEnumLookup *lookup,
int (*get)(Object *, Error **),
@@ -2225,20 +2366,23 @@ void object_class_property_add_enum(ObjectClass *klass, const char *name,
{
Error *local_err = NULL;
EnumProperty *prop = g_malloc(sizeof(*prop));
+ ObjectProperty *rv;
prop->lookup = lookup;
prop->get = get;
prop->set = set;
- object_class_property_add(klass, name, typename,
+ rv = object_class_property_add(klass, name, typename,
get ? property_get_enum : NULL,
set ? property_set_enum : NULL,
- property_release_enum,
+ NULL,
prop, &local_err);
if (local_err) {
error_propagate(errp, local_err);
g_free(prop);
}
+
+ return rv;
}
typedef struct TMProperty {
@@ -2319,23 +2463,27 @@ void object_property_add_tm(Object *obj, const char *name,
}
}
-void object_class_property_add_tm(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_tm(ObjectClass *klass, const char *name,
void (*get)(Object *, struct tm *, Error **),
Error **errp)
{
Error *local_err = NULL;
TMProperty *prop = g_malloc0(sizeof(*prop));
+ ObjectProperty *rv;
prop->get = get;
- object_class_property_add(klass, name, "struct tm",
+ rv = object_class_property_add(klass, name, "struct tm",
get ? property_get_tm : NULL, NULL,
- property_release_tm,
+ NULL,
prop, &local_err);
if (local_err) {
error_propagate(errp, local_err);
g_free(prop);
}
+
+ return rv;
}
static char *qdev_get_type(Object *obj, Error **errp)
@@ -2378,11 +2526,13 @@ void object_property_add_uint8_ptr(Object *obj, const char *name,
NULL, NULL, (void *)v, errp);
}
-void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
const uint8_t *v, Error **errp)
{
- object_class_property_add(klass, name, "uint8", property_get_uint8_ptr,
- NULL, NULL, (void *)v, errp);
+ return object_class_property_add(klass, name, "uint8",
+ property_get_uint8_ptr,
+ NULL, NULL, (void *)v, errp);
}
void object_property_add_uint16_ptr(Object *obj, const char *name,
@@ -2392,11 +2542,13 @@ void object_property_add_uint16_ptr(Object *obj, const char *name,
NULL, NULL, (void *)v, errp);
}
-void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
const uint16_t *v, Error **errp)
{
- object_class_property_add(klass, name, "uint16", property_get_uint16_ptr,
- NULL, NULL, (void *)v, errp);
+ return object_class_property_add(klass, name, "uint16",
+ property_get_uint16_ptr,
+ NULL, NULL, (void *)v, errp);
}
void object_property_add_uint32_ptr(Object *obj, const char *name,
@@ -2406,11 +2558,13 @@ void object_property_add_uint32_ptr(Object *obj, const char *name,
NULL, NULL, (void *)v, errp);
}
-void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
const uint32_t *v, Error **errp)
{
- object_class_property_add(klass, name, "uint32", property_get_uint32_ptr,
- NULL, NULL, (void *)v, errp);
+ return object_class_property_add(klass, name, "uint32",
+ property_get_uint32_ptr,
+ NULL, NULL, (void *)v, errp);
}
void object_property_add_uint64_ptr(Object *obj, const char *name,
@@ -2420,11 +2574,13 @@ void object_property_add_uint64_ptr(Object *obj, const char *name,
NULL, NULL, (void *)v, errp);
}
-void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
+ObjectProperty *
+object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
const uint64_t *v, Error **errp)
{
- object_class_property_add(klass, name, "uint64", property_get_uint64_ptr,
- NULL, NULL, (void *)v, errp);
+ return object_class_property_add(klass, name, "uint64",
+ property_get_uint64_ptr,
+ NULL, NULL, (void *)v, errp);
}
typedef struct {
@@ -2501,6 +2657,9 @@ void object_property_add_alias(Object *obj, const char *name,
goto out;
}
op->resolve = property_resolve_alias;
+ if (target_prop->defval) {
+ op->defval = qobject_ref(target_prop->defval);
+ }
object_property_set_description(obj, op->name,
target_prop->description,
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-05 20:39:01 +0000