From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5F71BCDB46F for ; Tue, 23 Jun 2026 09:58:23 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wbxtB-0008Fb-72; Tue, 23 Jun 2026 05:57:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wbxt9-00087W-TC for qemu-devel@nongnu.org; Tue, 23 Jun 2026 05:57:51 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wbxt8-0003mR-Dc for qemu-devel@nongnu.org; Tue, 23 Jun 2026 05:57:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1782208669; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FDaBDsCeCeayrGnc3vkPZXGa5K8jSeL4dUmbPZZjw0w=; b=BGV+yGjK8zABiDoXcjJ+6QuIvgvzoc5rJq95qCg95mej+GhR6MrfCs0h9EBPFZOQWn54vA UNxI9L8QXm4MzOeSmksDohZGPvtfuhAn2i7O2uHhqux0OG3RqCgwj3dH71QVH/NID4+tn4 D6n2sbjsCDM8TvQHgmDzCZlwKcy8loM= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-680-qQvmLeLVPgG0saEKmpBx5w-1; Tue, 23 Jun 2026 05:57:47 -0400 X-MC-Unique: qQvmLeLVPgG0saEKmpBx5w-1 X-Mimecast-MFC-AGG-ID: qQvmLeLVPgG0saEKmpBx5w_1782208666 Received: from mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.95]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DBE521954117; Tue, 23 Jun 2026 09:57:45 +0000 (UTC) Received: from berrange.com (unknown [10.44.34.133]) by mx-prod-int-10.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id DD1A61686; Tue, 23 Jun 2026 09:57:42 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: "Dr. David Alan Gilbert" , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Christian Brauner , devel@lists.libvirt.org, Markus Armbruster , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH v4 30/35] qom: add method for getting the "id" of a QOM object Date: Tue, 23 Jun 2026 10:55:46 +0100 Message-ID: <20260623095551.2106712-31-berrange@redhat.com> In-Reply-To: <20260623095551.2106712-1-berrange@redhat.com> References: <20260623095551.2106712-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.6 on 10.30.177.95 Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 8 X-Spam_score: 0.8 X-Spam_bar: / X-Spam_report: (0.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.445, 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The 'user_creatable_del' method doesn't want the 'Object *', but instead the "id" of the object to be deleted. While most of its work could be done with the "Object *" alone, purging the QemuOpts values needs the "id". The "id" is not recorded against an Object though, it is indirectly stored as a property linking the parent and child objects together. Add an accessor that can fetch this property name. Signed-off-by: Daniel P. Berrangé --- include/qom/object.h | 10 ++++++++++ qom/object.c | 17 +++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/include/qom/object.h b/include/qom/object.h index 11f55613fc..216d2a30f6 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -1759,6 +1759,16 @@ ObjectProperty *object_property_try_add_child(Object *obj, const char *name, ObjectProperty *object_property_add_child(Object *obj, const char *name, Object *child); +/** + * object_property_get_child_name: + * @obj: the object that owns the property + * @child: the object referenced by the child property + * + * Return the property name against which @child is registered + * with @obj, or NULL if @obj is not a parent of @child. + */ +char *object_property_get_child_name(Object *obj, Object *child); + typedef enum { /* Unref the link pointer when the property is deleted */ OBJ_PROP_LINK_STRONG = 0x1, diff --git a/qom/object.c b/qom/object.c index f79b2cf361..66bbd1488b 100644 --- a/qom/object.c +++ b/qom/object.c @@ -1952,6 +1952,23 @@ object_property_add_child(Object *obj, const char *name, return object_property_try_add_child(obj, name, child, &error_abort); } +char *object_property_get_child_name(Object *obj, Object *child) +{ + ObjectProperty *prop; + GHashTableIter iter; + gpointer key, value; + + g_hash_table_iter_init(&iter, obj->properties); + while (g_hash_table_iter_next(&iter, &key, &value)) { + prop = value; + if (object_property_is_child(prop) && prop->opaque == child) { + return g_strdup(prop->name); + } + } + return NULL; +} + + void object_property_allow_set_link(const Object *obj, const char *name, Object *val, Error **errp) { -- 2.54.0