qom: add pointer to int property helpers

Make it easy to add read-only helpers for simple
integer properties in memory.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/qom/object.c b/qom/object.c
index e90e3827d9..b617f265e7 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -1344,6 +1344,66 @@ static char *qdev_get_type(Object *obj, Error **errp)
     return g_strdup(object_get_typename(obj));
 }
 
+static void property_get_uint8_ptr(Object *obj, Visitor *v,
+                                   void *opaque, const char *name,
+                                   Error **errp)
+{
+    uint8_t value = *(uint8_t *)opaque;
+    visit_type_uint8(v, &value, name, errp);
+}
+
+static void property_get_uint16_ptr(Object *obj, Visitor *v,
+                                   void *opaque, const char *name,
+                                   Error **errp)
+{
+    uint16_t value = *(uint16_t *)opaque;
+    visit_type_uint16(v, &value, name, errp);
+}
+
+static void property_get_uint32_ptr(Object *obj, Visitor *v,
+                                   void *opaque, const char *name,
+                                   Error **errp)
+{
+    uint32_t value = *(uint32_t *)opaque;
+    visit_type_uint32(v, &value, name, errp);
+}
+
+static void property_get_uint64_ptr(Object *obj, Visitor *v,
+                                   void *opaque, const char *name,
+                                   Error **errp)
+{
+    uint64_t value = *(uint64_t *)opaque;
+    visit_type_uint64(v, &value, name, errp);
+}
+
+void object_property_add_uint8_ptr(Object *obj, const char *name,
+                                   const uint8_t *v, Error **errp)
+{
+    object_property_add(obj, name, "uint8", property_get_uint8_ptr,
+                        NULL, NULL, (void *)v, errp);
+}
+
+void object_property_add_uint16_ptr(Object *obj, const char *name,
+                                    const uint16_t *v, Error **errp)
+{
+    object_property_add(obj, name, "uint16", property_get_uint16_ptr,
+                        NULL, NULL, (void *)v, errp);
+}
+
+void object_property_add_uint32_ptr(Object *obj, const char *name,
+                                    const uint32_t *v, Error **errp)
+{
+    object_property_add(obj, name, "uint32", property_get_uint32_ptr,
+                        NULL, NULL, (void *)v, errp);
+}
+
+void object_property_add_uint64_ptr(Object *obj, const char *name,
+                                    const uint64_t *v, Error **errp)
+{
+    object_property_add(obj, name, "uint64", property_get_uint64_ptr,
+                        NULL, NULL, (void *)v, errp);
+}
+
 static void object_instance_init(Object *obj)
 {
     object_property_add_str(obj, "type", qdev_get_type, NULL, NULL);