From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:59325) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SCAGM-0001YB-K6 for qemu-devel@nongnu.org; Mon, 26 Mar 2012 09:47:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SCAGB-0003fx-VZ for qemu-devel@nongnu.org; Mon, 26 Mar 2012 09:47:10 -0400 Received: from cantor2.suse.de ([195.135.220.15]:41048 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SCAGB-0003cr-Mn for qemu-devel@nongnu.org; Mon, 26 Mar 2012 09:46:59 -0400 From: =?UTF-8?q?Andreas=20F=C3=A4rber?= Date: Mon, 26 Mar 2012 15:46:50 +0200 Message-Id: <1332769612-4247-2-git-send-email-afaerber@suse.de> In-Reply-To: <1332769612-4247-1-git-send-email-afaerber@suse.de> References: <1332769612-4247-1-git-send-email-afaerber@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH RFC 1/3] qom: Add "realized" property to Object List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Paolo Bonzini , =?UTF-8?q?Andreas=20F=C3=A4rber?= , Anthony Liguori The Object::realized property can only be set once and, on setting it, invokes the ObjectClass::realize callback. Signed-off-by: Andreas F=C3=A4rber Cc: Anthony Liguori Cc: Paolo Bonzini --- include/qemu/object.h | 2 ++ qom/object.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+), 0 deletions(-) diff --git a/include/qemu/object.h b/include/qemu/object.h index e8fc126..742b5b6 100644 --- a/include/qemu/object.h +++ b/include/qemu/object.h @@ -239,6 +239,7 @@ struct ObjectClass { /*< private >*/ Type type; + int (*realize)(Object *obj); }; =20 /** @@ -264,6 +265,7 @@ struct Object QTAILQ_HEAD(, ObjectProperty) properties; uint32_t ref; Object *parent; + bool realized; }; =20 /** diff --git a/qom/object.c b/qom/object.c index 9cd9506..ec143ad 100644 --- a/qom/object.c +++ b/qom/object.c @@ -273,6 +273,34 @@ static void object_init_with_type(Object *obj, TypeI= mpl *ti) } } =20 +static void object_get_realized(Object *obj, Visitor *v, void *opaque, + const char *name, Error **errp) +{ + visit_type_bool(v, &obj->realized, name, errp); +} + +static void object_set_realized(Object *obj, Visitor *v, void *opaque, + const char *name, Error **errp) +{ + bool value; + + if (obj->realized) { + error_set(errp, QERR_PERMISSION_DENIED); + return; + } + + visit_type_bool(v, &value, name, errp); + if (error_is_set(errp) || !value) { + return; + } + + if (obj->class->realize !=3D NULL && obj->class->realize(obj) !=3D 0= ) { + error_set(errp, QERR_DEVICE_INIT_FAILED, object_get_typename(obj= )); + return; + } + obj->realized =3D true; +} + void object_initialize_with_type(void *data, TypeImpl *type) { Object *obj =3D data; @@ -287,6 +315,9 @@ void object_initialize_with_type(void *data, TypeImpl= *type) obj->class =3D type->class; QTAILQ_INIT(&obj->properties); object_init_with_type(obj, type); + object_property_add(obj, "realized", "boolean", + object_get_realized, object_set_realized, + NULL, NULL, NULL); } =20 void object_initialize(void *data, const char *typename) --=20 1.7.7