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[Qemu-devel] [PATCH v3 4/8] qdev: add qdev_alias_all_properties()
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH v3 4/8] qdev: add qdev_alias_all_properties() |
Date: |
Fri, 30 May 2014 13:17:45 +0200 |
The qdev_alias_all_properties() function creates QOM alias properties
for each qdev property on a DeviceState. This is useful for parent
objects that wish to forward property accesses to their children.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
v3:
* Split qdev_alias_all_properties() into its own patch [Peter Crosthwaite]
* Do not dereference DEVICE_CLASS(class) inline [Peter Crosthwaite]
---
hw/core/qdev.c | 21 +++++++++++++++++++++
include/hw/qdev-properties.h | 2 ++
2 files changed, 23 insertions(+)
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index e65a5aa..850cd9e 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -776,6 +776,27 @@ void qdev_property_add_static(DeviceState *dev, Property
*prop,
}
}
+/* @qdev_alias_all_properties - Add alias properties to the source object for
+ * all qdev properties on the target DeviceState.
+ */
+void qdev_alias_all_properties(DeviceState *target, Object *source)
+{
+ ObjectClass *class;
+ Property *prop;
+
+ class = object_get_class(OBJECT(target));
+ do {
+ DeviceClass *dc = DEVICE_CLASS(class);
+
+ for (prop = dc->props; prop && prop->name; prop++) {
+ object_property_add_alias(source, prop->name,
+ OBJECT(target), prop->name,
+ &error_abort);
+ }
+ class = object_class_get_parent(class);
+ } while (class != object_class_by_name(TYPE_DEVICE));
+}
+
static bool device_get_realized(Object *obj, Error **errp)
{
DeviceState *dev = DEVICE(obj);
diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h
index c46e908..ffef425 100644
--- a/include/hw/qdev-properties.h
+++ b/include/hw/qdev-properties.h
@@ -192,6 +192,8 @@ void error_set_from_qdev_prop_error(Error **errp, int ret,
DeviceState *dev,
*/
void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp);
+void qdev_alias_all_properties(DeviceState *target, Object *source);
+
/**
* @qdev_prop_set_after_realize:
* @dev: device
--
1.9.3
- [Qemu-devel] [PATCH v3 0/8] virtio-blk: use alias properties in transport devices, Stefan Hajnoczi, 2014/05/30
- [Qemu-devel] [PATCH v3 2/8] virtio-blk: avoid qdev property definition duplication, Stefan Hajnoczi, 2014/05/30
- [Qemu-devel] [PATCH v3 1/8] qom: add object_property_add_alias(), Stefan Hajnoczi, 2014/05/30
- [Qemu-devel] [PATCH v3 3/8] virtio-blk: move x-data-plane qdev property to virtio-blk.h, Stefan Hajnoczi, 2014/05/30
- [Qemu-devel] [PATCH v3 4/8] qdev: add qdev_alias_all_properties(),
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH v3 6/8] virtio-blk: drop virtio_blk_set_conf(), Stefan Hajnoczi, 2014/05/30
- [Qemu-devel] [PATCH v3 5/8] virtio-blk: use aliases instead of duplicate qdev properties, Stefan Hajnoczi, 2014/05/30
- [Qemu-devel] [PATCH v3 8/8] virtio-blk: move qdev properties into virtio-blk.c, Stefan Hajnoczi, 2014/05/30
- [Qemu-devel] [PATCH v3 7/8] virtio: fix virtio-blk child refcount in transports, Stefan Hajnoczi, 2014/05/30