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 4682784B03 for ; Wed, 15 Dec 2021 10:20:32 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 3BE43FB5E for ; Wed, 15 Dec 2021 10:20:02 +0100 (CET) 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) server-digest SHA256) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id 5C28EFA97 for ; Wed, 15 Dec 2021 10:20:00 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id A2A6D451E3 for ; Wed, 15 Dec 2021 10:19:53 +0100 (CET) From: Dominik Csapak To: pbs-devel@lists.proxmox.com Date: Wed, 15 Dec 2021 10:19:45 +0100 Message-Id: <20211215091952.1490583-3-d.csapak@proxmox.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211215091952.1490583-1-d.csapak@proxmox.com> References: <20211215091952.1490583-1-d.csapak@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.175 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% 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] [PATCH proxmox v2 2/3] proxmox-sys: add DiskUsage struct and helper 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: Wed, 15 Dec 2021 09:20:32 -0000 copied from proxmox-backup Signed-off-by: Dominik Csapak --- proxmox-sys/src/fs/mod.rs | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/proxmox-sys/src/fs/mod.rs b/proxmox-sys/src/fs/mod.rs index 9fe333b..5935b1a 100644 --- a/proxmox-sys/src/fs/mod.rs +++ b/proxmox-sys/src/fs/mod.rs @@ -3,6 +3,7 @@ use std::fs::File; use std::path::Path; use anyhow::{bail, Error}; +use serde::Serialize; use std::os::unix::io::{AsRawFd, RawFd}; use nix::unistd::{Gid, Uid}; @@ -102,3 +103,28 @@ impl CreateOptions { */ } +/// Basic disk usage information +#[derive(Serialize)] +pub struct DiskUsage { + pub total: u64, + pub used: u64, + pub available: u64, +} + +/// Get disk usage information from path +pub fn disk_usage(path: &std::path::Path) -> Result { + let mut stat: libc::statfs64 = unsafe { std::mem::zeroed() }; + + use nix::NixPath; + + let res = path.with_nix_path(|cstr| unsafe { libc::statfs64(cstr.as_ptr(), &mut stat) })?; + nix::errno::Errno::result(res)?; + + let bsize = stat.f_bsize as u64; + + Ok(DiskUsage{ + total: stat.f_blocks*bsize, + used: (stat.f_blocks-stat.f_bfree)*bsize, + available: stat.f_bavail*bsize, + }) +} -- 2.30.2