diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2014-03-19 08:58:56 +0100 |
|---|---|---|
| committer | Andreas Färber <afaerber@suse.de> | 2014-03-19 22:23:13 +0100 |
| commit | 39f72ef94ba74701d18daf82b44c18a60f94eb60 (patch) | |
| tree | a79b0e1004d295dc4e988f484b7dac5a76d2cef8 /include/hw | |
| parent | 9561fda8d90e176bef598ba87c42a1bd6ad03ef7 (diff) | |
qom: Add check() argument to object_property_add_link()
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 <peter.crosthwaite@petalogix.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Tweaked documentation comment]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/qdev-properties.h | 11 |
1 files changed, 11 insertions, 0 deletions
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 |