From nobody Mon Feb 9 17:24:46 2026 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=quarantine dis=none) header.from=virtuozzo.com ARC-Seal: i=1; a=rsa-sha256; t=1620858787; cv=none; d=zohomail.com; s=zohoarc; b=ENjTsM2egjfPqVSLD0lh5xhKju2+b3bBDtJ9y1ik+dJ3n02vR5OwbbnnHb1mGjCveQ+yIB/Ofz/uXEIDXLLFNBatcRyCXl+G+rqNqJY0wN2SJcC19x8xlfT13xGgqFmxEJ1op8ejDrO6AB5PJKIZnx9NaKfWWJINEKPG0bkwYdY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1620858787; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=jKIMHQ971fd0/ATRtGq6S+1Upp4MAjJyJ73ggJBuvpM=; b=No9iOfKEcgKOcppr4EBKD2gbpEHLy1BfCZ6MMXemGljjgWIj3cE0RiAU/FGGI9cGc8iZixqhPm4eJlHc1RuHpWWHNzehY28FZVI44K/gYe0qXQWIeXrUJDIiQh9Qm2IThiCbRXJptEZyRIM2J791qRNR6U/eGL88aFIRVl5JdWw= 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=quarantine dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1620858787526548.9372862093259; Wed, 12 May 2021 15:33:07 -0700 (PDT) Received: from localhost ([::1]:42904 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lgxPe-0007XC-HV for importer@patchew.org; Wed, 12 May 2021 18:33:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43430) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lgxOC-0004vK-4k for qemu-devel@nongnu.org; Wed, 12 May 2021 18:31:36 -0400 Received: from relay.sw.ru ([185.231.240.75]:55490) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lgxO8-0003sV-5E for qemu-devel@nongnu.org; Wed, 12 May 2021 18:31:35 -0400 Received: from [192.168.15.22] (helo=andrey-MS-7B54.sw.ru) by relay.sw.ru with esmtp (Exim 4.94) (envelope-from ) id 1lgxO5-002Bd3-A2; Thu, 13 May 2021 01:31:29 +0300 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=MIME-Version:Message-Id:Date:Subject:From: Content-Type; bh=jKIMHQ971fd0/ATRtGq6S+1Upp4MAjJyJ73ggJBuvpM=; b=oUQCtbBDW5Xf ogSUohY+52BB8wJrOEm3PVWigKDZckQy1cshOY9f4GUrbxQA59aGYMvrvWf5ExWGJ94wSzhFCQUVD 2D6sOGtGecaTMCknX47h+V3+NNi/5i6rnyxsD6zX5JUszaT1OxmuhYSlvfx8UcksHl7syyKxEd9wh Lzjbs=; From: Andrey Gruzdev To: qemu-devel@nongnu.org Cc: Den Lunev , Vladimir Sementsov-Ogievskiy , Eric Blake , Paolo Bonzini , Juan Quintela , "Dr . David Alan Gilbert" , Markus Armbruster , Peter Xu , David Hildenbrand , Andrey Gruzdev Subject: [RFC PATCH v2 2/7] migration/snapshot: Introduce qemu_ftell2() routine Date: Thu, 13 May 2021 01:31:22 +0300 Message-Id: <20210512223127.586885-3-andrey.gruzdev@virtuozzo.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210512223127.586885-1-andrey.gruzdev@virtuozzo.com> References: <20210512223127.586885-1-andrey.gruzdev@virtuozzo.com> MIME-Version: 1.0 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=185.231.240.75; envelope-from=andrey.gruzdev@virtuozzo.com; helo=relay.sw.ru 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) Content-Type: text/plain; charset="utf-8" In qemu-snapshot it is needed to retrieve current QEMUFile offset as a number of bytes read by qemu_get_byte()/qemu_get_buffer(). The existing qemu_ftell() routine would give read position as a number of bytes fetched from underlying IOChannel which is not the same. Signed-off-by: Andrey Gruzdev --- migration/qemu-file.c | 6 ++++++ migration/qemu-file.h | 1 + 2 files changed, 7 insertions(+) diff --git a/migration/qemu-file.c b/migration/qemu-file.c index d6e03dbc0e..66be5e6460 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -657,6 +657,12 @@ int64_t qemu_ftell(QEMUFile *f) return f->pos; } =20 +int64_t qemu_ftell2(QEMUFile *f) +{ + qemu_fflush(f); + return f->pos + f->buf_index - f->buf_size; +} + int qemu_file_rate_limit(QEMUFile *f) { if (f->shutdown) { diff --git a/migration/qemu-file.h b/migration/qemu-file.h index a9b6d6ccb7..bd1a6def02 100644 --- a/migration/qemu-file.h +++ b/migration/qemu-file.h @@ -124,6 +124,7 @@ void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHoo= ks *hooks); int qemu_get_fd(QEMUFile *f); int qemu_fclose(QEMUFile *f); int64_t qemu_ftell(QEMUFile *f); +int64_t qemu_ftell2(QEMUFile *f); int64_t qemu_ftell_fast(QEMUFile *f); /* * put_buffer without copying the buffer. --=20 2.27.0