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bh=j8o0cMvoB1NfkCAmxv1Vhgzlg9+OlUbpZQtUOLLhGZY=; b=dDlJTjKbA0Nx7xFDDOHUhCk9qJedwioSoSoIwOkbdts0mn1Z5UCg1q+udx3b8k77wHehES 1c1BlFC9p9GEUFktvT8WwBIc1ef+H1Cs9g060RueZcIc07wvXRNEKfRbfHMJUVaku9J9xl Jw1tbg7XVeNeefFsDp/+lXGSXMUOZeM= X-MC-Unique: n1mRpz7cOqmYpS_feHFrNg-1 From: Eduardo Habkost To: qemu-devel@nongnu.org Subject: [PATCH 02/12] qom: Introduce PointerProperty struct Date: Fri, 9 Oct 2020 12:01:12 -0400 Message-Id: <20201009160122.1662082-3-ehabkost@redhat.com> In-Reply-To: <20201009160122.1662082-1-ehabkost@redhat.com> References: <20201009160122.1662082-1-ehabkost@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ehabkost@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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=63.128.21.124; envelope-from=ehabkost@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/09 02:34:40 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Markus Armbruster , Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , John Snow Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) PointerProperty will hold additional info about pointer properties. It will allow us to implement more complex logic in pointer property getters and setters. Signed-off-by: Eduardo Habkost --- Cc: Paolo Bonzini Cc: "Daniel P. Berrang=C3=A9" Cc: Eduardo Habkost Cc: qemu-devel@nongnu.org --- qom/object.c | 46 ++++++++++++++++++++++++++++++++++++---------- 1 file changed, 36 insertions(+), 10 deletions(-) diff --git a/qom/object.c b/qom/object.c index 313d2f9834..17692ed5c3 100644 --- a/qom/object.c +++ b/qom/object.c @@ -2449,17 +2449,30 @@ static char *object_get_type(Object *obj, Error **e= rrp) return g_strdup(object_get_typename(obj)); } =20 +typedef struct { + /* Pointer to property value */ + void *ptr; +} PointerProperty; + +static void *pointer_property_get_ptr(Object *obj, PointerProperty *prop) +{ + return prop->ptr; +} + static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *na= me, void *opaque, Error **errp) { - uint8_t value =3D *(uint8_t *)opaque; + PointerProperty *prop =3D opaque; + uint8_t *field =3D pointer_property_get_ptr(obj, prop); + uint8_t value =3D *field; visit_type_uint8(v, name, &value, errp); } =20 static void property_set_uint8_ptr(Object *obj, Visitor *v, const char *na= me, void *opaque, Error **errp) { - uint8_t *field =3D opaque; + PointerProperty *prop =3D opaque; + uint8_t *field =3D pointer_property_get_ptr(obj, prop); uint8_t value; =20 if (!visit_type_uint8(v, name, &value, errp)) { @@ -2472,14 +2485,17 @@ static void property_set_uint8_ptr(Object *obj, Vis= itor *v, const char *name, static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *n= ame, void *opaque, Error **errp) { - uint16_t value =3D *(uint16_t *)opaque; + PointerProperty *prop =3D opaque; + uint16_t *field =3D pointer_property_get_ptr(obj, prop); + uint16_t value =3D *field; visit_type_uint16(v, name, &value, errp); } =20 static void property_set_uint16_ptr(Object *obj, Visitor *v, const char *n= ame, void *opaque, Error **errp) { - uint16_t *field =3D opaque; + PointerProperty *prop =3D opaque; + uint16_t *field =3D pointer_property_get_ptr(obj, prop); uint16_t value; =20 if (!visit_type_uint16(v, name, &value, errp)) { @@ -2492,14 +2508,17 @@ static void property_set_uint16_ptr(Object *obj, Vi= sitor *v, const char *name, static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *n= ame, void *opaque, Error **errp) { - uint32_t value =3D *(uint32_t *)opaque; + PointerProperty *prop =3D opaque; + uint32_t *field =3D pointer_property_get_ptr(obj, prop); + uint32_t value =3D *field; visit_type_uint32(v, name, &value, errp); } =20 static void property_set_uint32_ptr(Object *obj, Visitor *v, const char *n= ame, void *opaque, Error **errp) { - uint32_t *field =3D opaque; + PointerProperty *prop =3D opaque; + uint32_t *field =3D pointer_property_get_ptr(obj, prop); uint32_t value; =20 if (!visit_type_uint32(v, name, &value, errp)) { @@ -2512,14 +2531,17 @@ static void property_set_uint32_ptr(Object *obj, Vi= sitor *v, const char *name, static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *n= ame, void *opaque, Error **errp) { - uint64_t value =3D *(uint64_t *)opaque; + PointerProperty *prop =3D opaque; + uint64_t *field =3D pointer_property_get_ptr(obj, prop); + uint64_t value =3D *field; visit_type_uint64(v, name, &value, errp); } =20 static void property_set_uint64_ptr(Object *obj, Visitor *v, const char *n= ame, void *opaque, Error **errp) { - uint64_t *field =3D opaque; + PointerProperty *prop =3D opaque; + uint64_t *field =3D pointer_property_get_ptr(obj, prop); uint64_t value; =20 if (!visit_type_uint64(v, name, &value, errp)) { @@ -2537,10 +2559,12 @@ object_property_add_uint_ptr(Object *obj, const cha= r *name, ObjectPropertyFlags flags, void *ptr) { + PointerProperty *prop =3D g_new0(PointerProperty, 1); + prop->ptr =3D ptr; return object_property_add(obj, name, type, (flags & OBJ_PROP_FLAG_READ) ? getter : NUL= L, (flags & OBJ_PROP_FLAG_WRITE) ? setter : NU= LL, - NULL, ptr); + NULL, (void *)prop); } =20 static ObjectProperty * @@ -2551,10 +2575,12 @@ object_class_property_add_uint_ptr(ObjectClass *oc,= const char *name, ObjectPropertyFlags flags, void *ptr) { + PointerProperty *prop =3D g_new0(PointerProperty, 1); + prop->ptr =3D ptr; return object_class_property_add(oc, name, type, (flags & OBJ_PROP_FLAG_READ) ? getter= : NULL, (flags & OBJ_PROP_FLAG_WRITE) ? sette= r : NULL, - NULL, ptr); + NULL, (void *)prop); } =20 ObjectProperty * --=20 2.26.2