From patchwork Wed Feb 24 13:52:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 12102027 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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 3060CC433E0 for ; Wed, 24 Feb 2021 15:15:29 +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 9DD8F64E4B for ; Wed, 24 Feb 2021 15:15:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9DD8F64E4B 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]:51860 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lEvst-0002Jn-Fe for qemu-devel@archiver.kernel.org; Wed, 24 Feb 2021 10:15:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:48838) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lEvRv-0003aM-LD for qemu-devel@nongnu.org; Wed, 24 Feb 2021 09:47:35 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:21575) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lEvRt-00046v-Q5 for qemu-devel@nongnu.org; Wed, 24 Feb 2021 09:47:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614178052; 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=DNxBKpWkdEItNJwAB7jz+BZhN/uyoRmcAPf5Li1hh9w=; b=YSrZlYHd4Uk/tACYBTWpwESFyjRpB6uiaBPNxm/qOwDVN7DCjr8+Kg+AF8FjHWobSFvgyH C28G8S2D9Mkjgmso7iJ2oaKv3HCKNp5940+uG5kb+o0VXOV50+hu9gFonPfg/VcLSd+Kh1 eTz5lgoUSUzLj0/ojMP6UT2SNLySOEU= 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-10-iu7nr4E5O1qEa6pZ4snBxQ-1; Wed, 24 Feb 2021 09:47:30 -0500 X-MC-Unique: iu7nr4E5O1qEa6pZ4snBxQ-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 5D9871971C6B; Wed, 24 Feb 2021 13:56:26 +0000 (UTC) Received: from merkur.redhat.com (ovpn-114-142.ams2.redhat.com [10.36.114.142]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6D9A15D6D3; Wed, 24 Feb 2021 13:56:23 +0000 (UTC) From: Kevin Wolf To: qemu-devel@nongnu.org Subject: [PATCH v2 27/31] qom: Add user_creatable_add_from_str() Date: Wed, 24 Feb 2021 14:52:51 +0100 Message-Id: <20210224135255.253837-28-kwolf@redhat.com> In-Reply-To: <20210224135255.253837-1-kwolf@redhat.com> References: <20210224135255.253837-1-kwolf@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=kwolf@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: kwolf@redhat.com, lvivier@redhat.com, thuth@redhat.com, pkrempa@redhat.com, berrange@redhat.com, ehabkost@redhat.com, qemu-block@nongnu.org, libvir-list@redhat.com, jasowang@redhat.com, armbru@redhat.com, mreitz@redhat.com, kraxel@redhat.com, pbonzini@redhat.com, dgilbert@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is a version of user_creatable_process_cmdline() with an Error parameter that never calls exit() and is therefore usable in HMP. Signed-off-by: Kevin Wolf Reviewed-by: Eric Blake --- include/qom/object_interfaces.h | 16 ++++++++++++++++ qom/object_interfaces.c | 29 ++++++++++++++++++++++++----- 2 files changed, 40 insertions(+), 5 deletions(-) diff --git a/include/qom/object_interfaces.h b/include/qom/object_interfaces.h index 1e6c51b541..07511e6cff 100644 --- a/include/qom/object_interfaces.h +++ b/include/qom/object_interfaces.h @@ -144,6 +144,22 @@ typedef bool (*user_creatable_add_opts_predicate)(const char *type); int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp); +/** + * user_creatable_add_from_str: + * @optarg: the object definition string as passed on the command line + * @errp: if an error occurs, a pointer to an area to store the error + * + * Create an instance of the user creatable object by parsing optarg + * with a keyval parser and implicit key 'qom-type', converting the + * result to ObjectOptions and calling into qmp_object_add(). + * + * If a help option is given, print help instead. + * + * Returns: true when an object was successfully created, false when an error + * occurred (*errp is set then) or help was printed (*errp is not set). + */ +bool user_creatable_add_from_str(const char *optarg, Error **errp); + /** * user_creatable_process_cmdline: * @optarg: the object definition string as passed on the command line diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c index efb48249d5..54f0dadfea 100644 --- a/qom/object_interfaces.c +++ b/qom/object_interfaces.c @@ -282,26 +282,45 @@ static void user_creatable_print_help_from_qdict(QDict *args) } } -void user_creatable_process_cmdline(const char *optarg) +bool user_creatable_add_from_str(const char *optarg, Error **errp) { + ERRP_GUARD(); QDict *args; bool help; Visitor *v; ObjectOptions *options; - args = keyval_parse(optarg, "qom-type", &help, &error_fatal); + args = keyval_parse(optarg, "qom-type", &help, errp); + if (*errp) { + return false; + } if (help) { user_creatable_print_help_from_qdict(args); - exit(EXIT_SUCCESS); + qobject_unref(args); + return false; } v = qobject_input_visitor_new_keyval(QOBJECT(args)); - visit_type_ObjectOptions(v, NULL, &options, &error_fatal); + visit_type_ObjectOptions(v, NULL, &options, errp); visit_free(v); qobject_unref(args); - user_creatable_add_qapi(options, &error_fatal); + if (*errp) { + goto out; + } + + user_creatable_add_qapi(options, errp); +out: qapi_free_ObjectOptions(options); + return !*errp; +} + +void user_creatable_process_cmdline(const char *optarg) +{ + if (!user_creatable_add_from_str(optarg, &error_fatal)) { + /* Help was printed */ + exit(EXIT_SUCCESS); + } } bool user_creatable_del(const char *id, Error **errp)