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qom: accept any compatible type when setting a link property 

Links had limited utility before as they only allowed a concrete type to be
specified.  Now we can support abstract types and interfaces which means it's
now possible to have a link<PCIDevice>.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2011-12-23 08:35:43 -06:00
parent 57c9fafe0f
commit fe40e627c5
1 changed files with 5 additions and 4 deletions
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9
qom/object.c
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@ -735,11 +735,12 @@ static void object_set_link_property(Object *obj, Visitor *v, void *opaque,
if (target) {
gchar *target_type;
target_type = g_strdup_printf("link<%s>",
object_get_typename(OBJECT(target)));
if (strcmp(target_type, type) == 0) {
*child = target;
target_type = g_strdup(&type[5]);
target_type[strlen(target_type) - 2] = 0;
if (object_dynamic_cast(target, target_type)) {
object_ref(target);
*child = target;
} else {
error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, type);
}