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bh=tZpyUC8O0kFmGIJyFMAqx1/t3IDSz35Y6yMJtiML0fQ=; b=JmV1m9+Sgs5QoG1VgFmLH0sczCOsbym9ztZ1tW4Fy07aVu/9N6/EH29j5JbPoWQ/4SXOui UvjC92V7xrnwWO8mp1RsIP3j6mnezzlUzTli2EqUgajAzQnjXDWV7alJr0cJdOTsDVZmRl j4vLonlvyKgQn3ZKG8IPZreUT7tvfJ8= X-MC-Unique: 5safvjGGNuCXU2nldRLoeA-1 From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 02/10] object: qom module support Date: Thu, 2 Jul 2020 14:20:40 +0200 Message-Id: <20200702122048.27798-3-kraxel@redhat.com> In-Reply-To: <20200702122048.27798-1-kraxel@redhat.com> References: <20200702122048.27798-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.61; 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charset="utf-8" Little helper function to load modules on demand. In most cases adding module loading support for devices and other objects is just s/object_class_by_name/module_object_class_by_name/ in the right spot. Signed-off-by: Gerd Hoffmann Message-id: 20200624131045.14512-3-kraxel@redhat.com --- include/qom/object.h | 12 ++++++++++++ qom/object.c | 14 ++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/include/qom/object.h b/include/qom/object.h index 94a61ccc3fe8..51f188137f1f 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -994,6 +994,18 @@ bool object_class_is_abstract(ObjectClass *klass); */ ObjectClass *object_class_by_name(const char *typename); =20 +/** + * module_object_class_by_name: + * @typename: The QOM typename to obtain the class for. + * + * For objects which might be provided by a module. Behaves like + * object_class_by_name, but additionally tries to load the module + * needed in case the class is not available. + * + * Returns: The class for @typename or %NULL if not found. + */ +ObjectClass *module_object_class_by_name(const char *typename); + void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), const char *implements_type, bool include_abstra= ct, void *opaque); diff --git a/qom/object.c b/qom/object.c index 6ece96bc2bfc..34daaf1280f5 100644 --- a/qom/object.c +++ b/qom/object.c @@ -985,6 +985,20 @@ ObjectClass *object_class_by_name(const char *typename) return type->class; } =20 +ObjectClass *module_object_class_by_name(const char *typename) +{ + ObjectClass *oc; + + oc =3D object_class_by_name(typename); +#ifdef CONFIG_MODULES + if (!oc) { + module_load_qom_one(typename); + oc =3D object_class_by_name(typename); + } +#endif + return oc; +} + ObjectClass *object_class_get_parent(ObjectClass *class) { TypeImpl *type =3D type_get_parent(class->type); --=20 2.18.4