From 39f72ef94ba74701d18daf82b44c18a60f94eb60 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 19 Mar 2014 08:58:56 +0100 Subject: qom: Add check() argument to object_property_add_link() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There are currently three types of object_property_add_link() callers: 1. The link property may be set at any time. 2. The link property of a DeviceState instance may only be set before realize. 3. The link property may never be set, it is read-only. Something similar can already be achieved with object_property_add_str()'s set() argument. Follow its example and add a check() argument to object_property_add_link(). Also provide default check() functions for case #1 and #2. Case #3 is covered by passing a NULL function pointer. Cc: Peter Crosthwaite Cc: Alexander Graf Cc: Anthony Liguori Cc: "Michael S. Tsirkin" Signed-off-by: Stefan Hajnoczi Reviewed-by: Paolo Bonzini [AF: Tweaked documentation comment] Signed-off-by: Andreas Färber --- include/hw/qdev-properties.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/hw/qdev-properties.h') diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h index 3c000eea75..c46e908d71 100644 --- a/include/hw/qdev-properties.h +++ b/include/hw/qdev-properties.h @@ -204,4 +204,15 @@ void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp); */ void qdev_prop_set_after_realize(DeviceState *dev, const char *name, Error **errp); + +/** + * qdev_prop_allow_set_link_before_realize: + * + * Set the #Error object if an attempt is made to set the link after realize. + * This function should be used as the check() argument to + * object_property_add_link(). + */ +void qdev_prop_allow_set_link_before_realize(Object *obj, const char *name, + Object *val, Error **errp); + #endif -- cgit v1.2.3