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Wed, 23 Dec 2020 17:11:37 -0500 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-150-5xh-iE9UN7O1mLDBO39HSw-1; Wed, 23 Dec 2020 17:11:27 -0500 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 710791005504; Wed, 23 Dec 2020 22:11:26 +0000 (UTC) Received: from blue.redhat.com (ovpn-113-9.phx2.redhat.com [10.3.113.9]) by smtp.corp.redhat.com (Postfix) with ESMTP id E9B475D74C; Wed, 23 Dec 2020 22:11:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608761489; 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=Pda4s9a3uiXxOEycJm85IWf06KW2M1U2IPACTKMWJkQ=; b=CpAQdnNciZLnrBC9igVme5w+iY+0ONb9L6zbOkOQ2eUKXzAxx3XAvRA6pRxjtoY0rHSCzV lt9lUHb7ie10WOFj844kxk/VlddJObPYHofo0is0gu3hcWtWXUPaX1L5QXZjf+Z7zXVj8C pyVb8EZaU74S7CbVNpye2qEBzzzASTw= X-MC-Unique: 5xh-iE9UN7O1mLDBO39HSw-1 From: Eric Blake To: qemu-devel@nongnu.org Subject: [PATCH v3 5/7] qapi: Introduce QAPI_LIST_APPEND Date: Wed, 23 Dec 2020 16:11:00 -0600 Message-Id: <20201223221102.390740-6-eblake@redhat.com> In-Reply-To: <20201223221102.390740-1-eblake@redhat.com> References: <20201223221102.390740-1-eblake@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=eblake@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=eblake@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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_H4=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: Michael Roth , armbru@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Similar to the existing QAPI_LIST_PREPEND, but designed for use where we want to preserve insertion order. Callers will be added in upcoming patches. Note the difference in signature: PREPEND takes List*, APPEND takes List**. Signed-off-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy --- include/qapi/util.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/qapi/util.h b/include/qapi/util.h index 6178e98e97a5..8b4967990c0d 100644 --- a/include/qapi/util.h +++ b/include/qapi/util.h @@ -37,4 +37,17 @@ int parse_qapi_name(const char *name, bool complete); (list) =3D _tmp; \ } while (0) +/* + * For any pointer to a GenericList @tail, insert @element at the back and + * update the tail. + * + * Note that this macro evaluates @element exactly once, so it is safe + * to have side-effects with that argument. + */ +#define QAPI_LIST_APPEND(tail, element) do { \ + *(tail) =3D g_malloc0(sizeof(**(tail))); \ + (*(tail))->value =3D (element); \ + (tail) =3D &(*tail)->next; \ +} while (0) + #endif --=20 2.29.2