From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id CE47A987BB for ; Mon, 9 Oct 2023 13:52:12 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 9D64816B4B for ; Mon, 9 Oct 2023 13:52:12 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Mon, 9 Oct 2023 13:52:09 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id EFA514494C for ; Mon, 9 Oct 2023 13:52:08 +0200 (CEST) From: Christian Ebner To: pbs-devel@lists.proxmox.com Date: Mon, 9 Oct 2023 13:51:22 +0200 Message-Id: <20231009115139.1417886-7-c.ebner@proxmox.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231009115139.1417886-1-c.ebner@proxmox.com> References: <20231009115139.1417886-1-c.ebner@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.091 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pbs-devel] [RFC v2 pxar 6/23] fix #3174: encoder: helper to add to encoder position X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Oct 2023 11:52:12 -0000 Adds a helper to allow to increase the encoder position by a given size. This is used to increase the position when adding an appendix section to the pxar stream, as these bytes are never encoded directly but rather referenced by already existing chunks. Signed-off-by: Christian Ebner --- Changes since v1: - add unsafe function signature in order to make it clear that calling `position_add` with incorrect size values will break the pxar archive encoding. src/encoder/aio.rs | 5 +++++ src/encoder/mod.rs | 6 ++++++ src/encoder/sync.rs | 5 +++++ 3 files changed, 16 insertions(+) diff --git a/src/encoder/aio.rs b/src/encoder/aio.rs index 5c7c7b9..8ff1364 100644 --- a/src/encoder/aio.rs +++ b/src/encoder/aio.rs @@ -112,6 +112,11 @@ impl<'a, T: SeqWrite + 'a> Encoder<'a, T> { self.inner.finish().await } + /// Add size to encoders position and return new position. + pub unsafe fn position_add(&mut self, size: u64) -> u64 { + unsafe { self.inner.position_add(size) } + } + /// Add reference to archive appendix pub async fn add_appendix_ref>( &mut self, diff --git a/src/encoder/mod.rs b/src/encoder/mod.rs index 3270d52..de23728 100644 --- a/src/encoder/mod.rs +++ b/src/encoder/mod.rs @@ -673,6 +673,12 @@ impl<'a, T: SeqWrite + 'a> EncoderImpl<'a, T> { self.state.write_position } + #[inline] + pub unsafe fn position_add(&mut self, size: u64) -> u64 { + self.state.write_position += size; + self.state.write_position + } + pub async fn create_directory( &mut self, file_name: &Path, diff --git a/src/encoder/sync.rs b/src/encoder/sync.rs index 2aaa6f2..a7f6b20 100644 --- a/src/encoder/sync.rs +++ b/src/encoder/sync.rs @@ -110,6 +110,11 @@ impl<'a, T: SeqWrite + 'a> Encoder<'a, T> { poll_result_once(self.inner.finish()) } + /// Add size to encoders position and return new position. + pub unsafe fn position_add(&mut self, size: u64) -> u64 { + unsafe { self.inner.position_add(size) } + } + /// Add reference to archive appendix pub async fn add_appendix_ref>( &mut self, -- 2.39.2