From nobody Tue Nov 26 08:38:45 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=suse.de ARC-Seal: i=1; a=rsa-sha256; t=1709133771; cv=none; d=zohomail.com; s=zohoarc; b=f1u6bsZw3EwBBJhq4030rSvJbeaidapMc4eUC7Ffe20Dd4zz8eDszH4R/U1+yd3KsfkB/aIo8jXdmTwoY9Pg26D259VkW6+4aH6JXQSincd8GSzwYj2lSubXkLfpjT3NIseUZgH8lEEtHVT7ZUDBszo3xc3rwLIPlfm1yEYGysk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1709133771; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=qW5yUdTr0mwoltf/iGxZA8snBm043jlfeIZ97rn2OKk=; b=ldKzZ92t9Wne2Kr+Bq12es/noo+gs+IjhoYNP7tW41K0wIET5I1mC/Xmz2IIXbdQoLG91iX3Tu4N68nIYL6J35LBaZGfKxsl5rMXCyOjKIWHsNr+nPUTBrpdaZtiFlD4SnEdoob0fJ87jndp3MtYYqoIYljnSp+a3hdK01xS+jQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1709133771104100.73450316250057; Wed, 28 Feb 2024 07:22:51 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rfLkc-0006Vf-WA; Wed, 28 Feb 2024 10:21:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfLkb-0006UY-Dh for qemu-devel@nongnu.org; Wed, 28 Feb 2024 10:21:41 -0500 Received: from smtp-out2.suse.de ([195.135.223.131]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rfLkY-0004lj-FV for qemu-devel@nongnu.org; Wed, 28 Feb 2024 10:21:41 -0500 Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 999A81F79A; Wed, 28 Feb 2024 15:21:36 +0000 (UTC) Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id C3C6E13A5D; Wed, 28 Feb 2024 15:21:34 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id MNyFIn5P32UPAwAAD6G6ig (envelope-from ); Wed, 28 Feb 2024 15:21:34 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1709133696; h=from:from:reply-to: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=qW5yUdTr0mwoltf/iGxZA8snBm043jlfeIZ97rn2OKk=; b=XMir68strhnWS653nBSv4SNJSOGpQeW2kcoYpWS2k/lwkHJmX/CcttvhcPHOHuUp5pOmC/ ksYOU9oyBwvTkjDRXIbxx6V3FJphW4t7qknw47cC3CzWDIQQSu5g3VTlXvMApU+5lnfIjw daUrNDzh7iw9sN0cTmngCoB4hX1evKY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1709133696; h=from:from:reply-to: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=qW5yUdTr0mwoltf/iGxZA8snBm043jlfeIZ97rn2OKk=; b=+4cDKyijmfX0lLIm+5CniBZexGfiSi/bwg4iQERJ1ILKA+/0Onagghb+KPaf9nShHA8Q7t lmD50JRHBZB3TTAg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1709133696; h=from:from:reply-to: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=qW5yUdTr0mwoltf/iGxZA8snBm043jlfeIZ97rn2OKk=; b=XMir68strhnWS653nBSv4SNJSOGpQeW2kcoYpWS2k/lwkHJmX/CcttvhcPHOHuUp5pOmC/ ksYOU9oyBwvTkjDRXIbxx6V3FJphW4t7qknw47cC3CzWDIQQSu5g3VTlXvMApU+5lnfIjw daUrNDzh7iw9sN0cTmngCoB4hX1evKY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1709133696; h=from:from:reply-to: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=qW5yUdTr0mwoltf/iGxZA8snBm043jlfeIZ97rn2OKk=; b=+4cDKyijmfX0lLIm+5CniBZexGfiSi/bwg4iQERJ1ILKA+/0Onagghb+KPaf9nShHA8Q7t lmD50JRHBZB3TTAg== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: berrange@redhat.com, armbru@redhat.com, Peter Xu , Claudio Fontana , Nikolay Borisov Subject: [PATCH v5 02/23] io: add and implement QIO_CHANNEL_FEATURE_SEEKABLE for channel file Date: Wed, 28 Feb 2024 12:21:06 -0300 Message-Id: <20240228152127.18769-3-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240228152127.18769-1-farosas@suse.de> References: <20240228152127.18769-1-farosas@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Authentication-Results: smtp-out2.suse.de; none X-Spam-Score: -2.77 X-Spamd-Result: default: False [-2.77 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCPT_COUNT_FIVE(0.00)[6]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,suse.com:email]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-2.47)[97.61%] 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=195.135.223.131; envelope-from=farosas@suse.de; helo=smtp-out2.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @suse.de) X-ZM-MESSAGEID: 1709133772867100007 From: Nikolay Borisov Add a generic QIOChannel feature SEEKABLE which would be used by the qemu_file* apis. For the time being this will be only implemented for file channels. Signed-off-by: Nikolay Borisov Reviewed-by: Daniel P. Berrang=C3=A9 Reviewed-by: Peter Xu Signed-off-by: Fabiano Rosas --- include/io/channel.h | 1 + io/channel-file.c | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/include/io/channel.h b/include/io/channel.h index 5f9dbaab65..fcb19fd672 100644 --- a/include/io/channel.h +++ b/include/io/channel.h @@ -44,6 +44,7 @@ enum QIOChannelFeature { QIO_CHANNEL_FEATURE_LISTEN, QIO_CHANNEL_FEATURE_WRITE_ZERO_COPY, QIO_CHANNEL_FEATURE_READ_MSG_PEEK, + QIO_CHANNEL_FEATURE_SEEKABLE, }; =20 =20 diff --git a/io/channel-file.c b/io/channel-file.c index 4a12c61886..f91bf6db1c 100644 --- a/io/channel-file.c +++ b/io/channel-file.c @@ -36,6 +36,10 @@ qio_channel_file_new_fd(int fd) =20 ioc->fd =3D fd; =20 + if (lseek(fd, 0, SEEK_CUR) !=3D (off_t)-1) { + qio_channel_set_feature(QIO_CHANNEL(ioc), QIO_CHANNEL_FEATURE_SEEK= ABLE); + } + trace_qio_channel_file_new_fd(ioc, fd); =20 return ioc; @@ -60,6 +64,10 @@ qio_channel_file_new_path(const char *path, return NULL; } =20 + if (lseek(ioc->fd, 0, SEEK_CUR) !=3D (off_t)-1) { + qio_channel_set_feature(QIO_CHANNEL(ioc), QIO_CHANNEL_FEATURE_SEEK= ABLE); + } + trace_qio_channel_file_new_path(ioc, path, flags, mode, ioc->fd); =20 return ioc; --=20 2.35.3