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[94.36.191.219]) by smtp.gmail.com with ESMTPSA id l38sm25652538wrc.96.2018.03.06.05.19.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 06 Mar 2018 05:19:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=7+LiNaufRCYJCzk/506106RvVtVvV0Ta8hjIN3C9JJ8=; b=BlCQ7XyFBR6/g7poWx0g7dor5QKFQtEwL9+eeHg7CDeflOIE/M5GYqhpUbKEQQcxPP w83zVsBJzBrOYfa0uuVDRotG84k3Qq68ZLzZ8nYrZ8e9jsYeCqEdBLXzC+gzfpfUhBri UOmsKwO9XIL5lyyIero1mMphma+kyHgU7P+0P0pFv6YZ1dYVEBjn4C7NjFklzG6BeqgE +Tl9LeUpLjoMxxfzaUY9DwjCqyPurafQYYfSQXmcDvwZiXAA1BbwURlZjJxBrqLSEIpx +crWUxuqQVxQKTAAmvyZEWpj0D+9Xb32sXRZods0gFYsYPhc+A+KqcHlFc1tSQQ5GvaI bb+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=7+LiNaufRCYJCzk/506106RvVtVvV0Ta8hjIN3C9JJ8=; b=iowezB07qow+ktnmr4HNYrjcV6PxE81dvKM1XAkKpAS8zLfbgGtLfbQaVWqpchkz3i iL5JIe3ZIYEmUgaqcl1rZXIAvVMgHq/H0M8vJPrygwjVE+aWwMkvlD/6Xu+Q5HoPcHx4 oON4kfLfUJdb5mnqnUEpy79xRxtmNj0NXMgOJgMcqv7MLfPN833eXWFlsEDyYpVnsdEH I2X1DNOfIS36mzx5ulNW2cVFu11GsJKTHbApkuNgAXar+l/y9p8KmPA9FBU25WfHTzpU gdkuOybp8MoJJVkItZ5BA4srxNIykP99acT1Djappy8siGqWxpnrcpA+8omQ6vR0KV7v R0Uw== X-Gm-Message-State: AElRT7FMLIuRx0eOWX2SvjuHdXpY5u0ZNjSEGFR/cdNr9bzMaSo7/W9h mY9e0Yi8Llyi5W3bvv/EiZyHK7SE X-Google-Smtp-Source: AG47ELuof+k7jbFCn3s47/D+8bZuCiEdGBQbMmkPuvuarlRXWlnRR2EgYO1N9FpsUQ0L74wN8zweVQ== X-Received: by 10.28.3.68 with SMTP id 65mr6612697wmd.63.1520342384179; Tue, 06 Mar 2018 05:19:44 -0800 (PST) From: Paolo Bonzini To: qemu-devel@nongnu.org Date: Tue, 6 Mar 2018 14:19:05 +0100 Message-Id: <1520342370-123606-10-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1520342370-123606-1-git-send-email-pbonzini@redhat.com> References: <1520342370-123606-1-git-send-email-pbonzini@redhat.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:400c:c09::242 Subject: [Qemu-devel] [PULL 09/34] qmp: Add qom-list-properties to list QOM object properties X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexey Kardashevskiy Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Alexey Kardashevskiy There is already 'device-list-properties' which does most of the job, however it does not handle everything returned by qom-list-types such as machines as they inherit directly from TYPE_OBJECT and not TYPE_DEVICE. It does not handle abstract classes either. This adds a new qom-list-properties command which prints properties of a specific class and its instance. It is pretty much a simplified copy of the device-list-properties handler. Since it creates an object instance, device properties should appear in the output as they are copied to QOM properties at the instance_init hook. This adds a object_class_property_iter_init() helper to allow class properties enumeration uses it in the new QMP command to allow properties listing for abstract classes. Signed-off-by: Alexey Kardashevskiy Message-Id: <20180301130939.15875-3-aik@ozlabs.ru> Signed-off-by: Paolo Bonzini --- include/qom/object.h | 16 ++++++++++++++++ qapi/misc.json | 15 +++++++++++++++ qmp.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ qom/object.c | 7 +++++++ 4 files changed, 87 insertions(+) diff --git a/include/qom/object.h b/include/qom/object.h index 30db296..4f07090 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -1017,6 +1017,22 @@ void object_property_iter_init(ObjectPropertyIterato= r *iter, Object *obj); =20 /** + * object_class_property_iter_init: + * @klass: the class + * + * Initializes an iterator for traversing all properties + * registered against an object class and all parent classes. + * + * It is forbidden to modify the property list while iterating, + * whether removing or adding properties. + * + * This can be used on abstract classes as it does not create a temporary + * instance. + */ +void object_class_property_iter_init(ObjectPropertyIterator *iter, + ObjectClass *klass); + +/** * object_property_iter_next: * @iter: the iterator instance * diff --git a/qapi/misc.json b/qapi/misc.json index fb9f41d..bd04469 100644 --- a/qapi/misc.json +++ b/qapi/misc.json @@ -1461,6 +1461,21 @@ 'returns': [ 'ObjectPropertyInfo' ] } =20 ## +# @qom-list-properties: +# +# List properties associated with a QOM object. +# +# @typename: the type name of an object +# +# Returns: a list of ObjectPropertyInfo describing object properties +# +# Since: 2.12 +## +{ 'command': 'qom-list-properties', + 'data': { 'typename': 'str'}, + 'returns': [ 'ObjectPropertyInfo' ] } + +## # @xen-set-global-dirty-log: # # Enable or disable the global dirty log mode. diff --git a/qmp.c b/qmp.c index 66332c3..8c7d1cc 100644 --- a/qmp.c +++ b/qmp.c @@ -578,6 +578,55 @@ ObjectPropertyInfoList *qmp_device_list_properties(con= st char *typename, return prop_list; } =20 +ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename, + Error **errp) +{ + ObjectClass *klass; + Object *obj =3D NULL; + ObjectProperty *prop; + ObjectPropertyIterator iter; + ObjectPropertyInfoList *prop_list =3D NULL; + + klass =3D object_class_by_name(typename); + if (klass =3D=3D NULL) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Class '%s' not found", typename); + return NULL; + } + + klass =3D object_class_dynamic_cast(klass, TYPE_OBJECT); + if (klass =3D=3D NULL) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OB= JECT); + return NULL; + } + + if (object_class_is_abstract(klass)) { + object_class_property_iter_init(&iter, klass); + } else { + obj =3D object_new(typename); + object_property_iter_init(&iter, obj); + } + while ((prop =3D object_property_iter_next(&iter))) { + ObjectPropertyInfo *info; + ObjectPropertyInfoList *entry; + + info =3D g_malloc0(sizeof(*info)); + info->name =3D g_strdup(prop->name); + info->type =3D g_strdup(prop->type); + info->has_description =3D !!prop->description; + info->description =3D g_strdup(prop->description); + + entry =3D g_malloc0(sizeof(*entry)); + entry->value =3D info; + entry->next =3D prop_list; + prop_list =3D entry; + } + + object_unref(obj); + + return prop_list; +} + CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp) { return arch_query_cpu_definitions(errp); diff --git a/qom/object.c b/qom/object.c index f70a75c..755ad03 100644 --- a/qom/object.c +++ b/qom/object.c @@ -1037,6 +1037,13 @@ ObjectProperty *object_property_iter_next(ObjectProp= ertyIterator *iter) return val; } =20 +void object_class_property_iter_init(ObjectPropertyIterator *iter, + ObjectClass *klass) +{ + g_hash_table_iter_init(&iter->iter, klass->properties); + iter->nextclass =3D klass; +} + ObjectProperty *object_class_property_find(ObjectClass *klass, const char = *name, Error **errp) { --=20 1.8.3.1