diff options
| -rw-r--r-- | include/qemu/object.h | 24 | ||||
| -rw-r--r-- | qom/object.c | 24 |
2 files changed, 48 insertions, 0 deletions
diff --git a/include/qemu/object.h b/include/qemu/object.h index 6c36345814..7d50da9078 100644 --- a/include/qemu/object.h +++ b/include/qemu/object.h @@ -646,6 +646,30 @@ char *object_property_get_str(Object *obj, const char *name, struct Error **errp); /** + * object_property_set_link: + * @value: the value to be written to the property + * @name: the name of the property + * @errp: returns an error if this function fails + * + * Writes an object's canonical path to a property. + */ +void object_property_set_link(Object *obj, Object *value, + const char *name, struct Error **errp); + +/** + * object_property_get_link: + * @obj: the object + * @name: the name of the property + * @errp: returns an error if this function fails + * + * Returns: the value of the property, resolved from a path to an Object, + * or NULL if an error occurs (including when the property value is not a + * string or not a valid object path). + */ +Object *object_property_get_link(Object *obj, const char *name, + struct Error **errp); + +/** * object_property_set_bool: * @value: the value to be written to the property * @name: the name of the property diff --git a/qom/object.c b/qom/object.c index 686cca00b2..5e5b261103 100644 --- a/qom/object.c +++ b/qom/object.c @@ -696,6 +696,30 @@ char *object_property_get_str(Object *obj, const char *name, return retval; } +void object_property_set_link(Object *obj, Object *value, + const char *name, Error **errp) +{ + object_property_set_str(obj, object_get_canonical_path(value), + name, errp); +} + +Object *object_property_get_link(Object *obj, const char *name, + Error **errp) +{ + char *str = object_property_get_str(obj, name, errp); + Object *target = NULL; + + if (str && *str) { + target = object_resolve_path(str, NULL); + if (!target) { + error_set(errp, QERR_DEVICE_NOT_FOUND, str); + } + } + + g_free(str); + return target; +} + void object_property_set_bool(Object *obj, bool value, const char *name, Error **errp) { |