From patchwork Mon Jun 12 14:54:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Llu=C3=ADs_Vilanova?= X-Patchwork-Id: 774674 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3wmbXW67hgz9s65 for ; Tue, 13 Jun 2017 00:54:51 +1000 (AEST) Received: from localhost ([::1]:38503 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dKQjx-0008Ak-Ez for incoming@patchwork.ozlabs.org; Mon, 12 Jun 2017 10:54:49 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57836) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dKQjP-00089Y-O4 for qemu-devel@nongnu.org; Mon, 12 Jun 2017 10:54:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dKQjL-0000P5-Ny for qemu-devel@nongnu.org; Mon, 12 Jun 2017 10:54:15 -0400 Received: from roura.ac.upc.edu ([147.83.33.10]:43053 helo=roura.ac.upc.es) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dKQjL-0000Oj-Bo for qemu-devel@nongnu.org; Mon, 12 Jun 2017 10:54:11 -0400 Received: from correu-1.ac.upc.es (correu-1.ac.upc.es [147.83.30.91]) by roura.ac.upc.es (8.13.8/8.13.8) with ESMTP id v5CEs9MD025660; Mon, 12 Jun 2017 16:54:09 +0200 Received: from localhost (unknown [132.68.137.174]) by correu-1.ac.upc.es (Postfix) with ESMTPSA id 123571419; Mon, 12 Jun 2017 16:54:03 +0200 (CEST) From: =?utf-8?b?TGx1w61z?= Vilanova To: qemu-devel@nongnu.org Date: Mon, 12 Jun 2017 17:54:02 +0300 Message-Id: <149727924253.28532.2681638904562623104.stgit@frigg.lan> X-Mailer: git-send-email 2.11.0 In-Reply-To: <149727922719.28532.11985025310576184920.stgit@frigg.lan> References: <149727922719.28532.11985025310576184920.stgit@frigg.lan> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-MIME-Autoconverted: from 8bit to quoted-printable by roura.ac.upc.es id v5CEs9MD025660 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x [fuzzy] X-Received-From: 147.83.33.10 Subject: [Qemu-devel] [PATCH v6 2/6] queue: Add macro for incremental traversal 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: Paolo Bonzini , Peter Crosthwaite , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Adds macro QTAILQ_FOREACH_CONTINUE to support incremental list traversal. Signed-off-by: Lluís Vilanova --- include/qemu/queue.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/qemu/queue.h b/include/qemu/queue.h index 35292c3155..eb2bf9cb1c 100644 --- a/include/qemu/queue.h +++ b/include/qemu/queue.h @@ -415,6 +415,18 @@ struct { \ (var); \ (var) = ((var)->field.tqe_next)) +/** + * QTAILQ_FOREACH_CONTINUE: + * @var: Variable to resume iteration from. + * @field: Field in @var holding a QTAILQ_ENTRY for this queue. + * + * Resumes iteration on a queue from the element in @var. + */ +#define QTAILQ_FOREACH_CONTINUE(var, field) \ + for ((var) = ((var)->field.tqe_next); \ + (var); \ + (var) = ((var)->field.tqe_next)) + #define QTAILQ_FOREACH_SAFE(var, head, field, next_var) \ for ((var) = ((head)->tqh_first); \ (var) && ((next_var) = ((var)->field.tqe_next), 1); \