From patchwork Thu Aug 20 00:12:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eduardo Habkost X-Patchwork-Id: 276013 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67B9AC433E1 for ; Thu, 20 Aug 2020 00:29:25 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 35D48207DA for ; Thu, 20 Aug 2020 00:29:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="d9d2Bc7m" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 35D48207DA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55788 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k8YSK-0002NK-F3 for qemu-devel@archiver.kernel.org; Wed, 19 Aug 2020 20:29:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49840) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k8YDs-00089K-1E for qemu-devel@nongnu.org; Wed, 19 Aug 2020 20:14:28 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:35206 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k8YDp-0002Ur-1L for qemu-devel@nongnu.org; Wed, 19 Aug 2020 20:14:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1597882464; 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=awg9JZ57ssouxAqwCxUf5tiQK0t/pyZG0TdMDrF6LBc=; b=d9d2Bc7mWzG01EuBMEv3FqdXonT7QxAekyvhVf/QkPU+12bodYgTEU+sZ7aIIJgnSMxqpc MpTeyoQYJup9sqovNFWOwgGy5BsP7s7uxnrlVEN3Hvy1awmmqSPwV0UnbbuEcQkd/9PKZo p1tXLfM7P7GnlaFBy2eNm1GLTwXmVms= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-495-bGRya__gNAKswbpbOI-M9A-1; Wed, 19 Aug 2020 20:14:22 -0400 X-MC-Unique: bGRya__gNAKswbpbOI-M9A-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 91B821084C8C for ; Thu, 20 Aug 2020 00:14:21 +0000 (UTC) Received: from localhost (ovpn-117-244.rdu2.redhat.com [10.10.117.244]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5A257747B0; Thu, 20 Aug 2020 00:14:21 +0000 (UTC) From: Eduardo Habkost To: qemu-devel@nongnu.org Subject: [PATCH v2 43/58] qom: make object_ref/unref use a void * instead of Object *. Date: Wed, 19 Aug 2020 20:12:21 -0400 Message-Id: <20200820001236.1284548-44-ehabkost@redhat.com> In-Reply-To: <20200820001236.1284548-1-ehabkost@redhat.com> References: <20200820001236.1284548-1-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: 0.002 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.81; envelope-from=ehabkost@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/19 20:12:44 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, 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_H2=-1, 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: Paolo Bonzini , "Daniel P. Berrange" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Daniel P. Berrangé The object_ref/unref methods are intended for use with any subclass of the base Object. Using "Object *" in the signature is not adding any meaningful level of type safety, since callers simply use "OBJECT(ptr)" and this expands to an unchecked cast "(Object *)". By using "void *" we enable the object_unref() method to be used to provide support for g_autoptr() with any subclass. Signed-off-by: Daniel P. Berrangé Message-Id: <20200723181410.3145233-2-berrange@redhat.com> --- Changes v1 -> v2: none --- include/qom/object.h | 4 ++-- qom/object.c | 6 ++++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/include/qom/object.h b/include/qom/object.h index 0f3a60617c..1f8aa2d48e 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -1035,7 +1035,7 @@ GSList *object_class_get_list_sorted(const char *implements_type, * as its reference count is greater than zero. * Returns: @obj */ -Object *object_ref(Object *obj); +Object *object_ref(void *obj); /** * object_unref: @@ -1044,7 +1044,7 @@ Object *object_ref(Object *obj); * Decrease the reference count of a object. A object cannot be freed as long * as its reference count is greater than zero. */ -void object_unref(Object *obj); +void object_unref(void *obj); /** * object_property_try_add: diff --git a/qom/object.c b/qom/object.c index 00fdf89b3b..b1822a2ef4 100644 --- a/qom/object.c +++ b/qom/object.c @@ -1124,8 +1124,9 @@ GSList *object_class_get_list_sorted(const char *implements_type, object_class_cmp); } -Object *object_ref(Object *obj) +Object *object_ref(void *objptr) { + Object *obj = OBJECT(objptr); if (!obj) { return NULL; } @@ -1133,8 +1134,9 @@ Object *object_ref(Object *obj) return obj; } -void object_unref(Object *obj) +void object_unref(void *objptr) { + Object *obj = OBJECT(objptr); if (!obj) { return; }