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 DB853616DC for ; Mon, 17 Jan 2022 11:48:57 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id C09DF18B7B for ; Mon, 17 Jan 2022 11:48:27 +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)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id C0D3B18B57 for ; Mon, 17 Jan 2022 11:48:26 +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 93FA6460C3 for ; Mon, 17 Jan 2022 11:48:26 +0100 (CET) From: Dominik Csapak To: pbs-devel@lists.proxmox.com Date: Mon, 17 Jan 2022 11:48:17 +0100 Message-Id: <20220117104825.2409598-3-d.csapak@proxmox.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220117104825.2409598-1-d.csapak@proxmox.com> References: <20220117104825.2409598-1-d.csapak@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.163 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 v4 2/4] proxmox-sys: add FileSystemInformation 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: Mon, 17 Jan 2022 10:48:57 -0000 code mostly copied from proxmox-backups 'disk_usage' Signed-off-by: Dominik Csapak --- proxmox-sys/src/fs/mod.rs | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/proxmox-sys/src/fs/mod.rs b/proxmox-sys/src/fs/mod.rs index 9fe333b..ee4ef42 100644 --- a/proxmox-sys/src/fs/mod.rs +++ b/proxmox-sys/src/fs/mod.rs @@ -102,3 +102,40 @@ impl CreateOptions { */ } +/// Information about a mounted file system from statfs64 syscall +pub struct FileSystemInformation { + /// total bytes available + pub total: u64, + /// bytes used + pub used: u64, + /// bytes available to an unprivileged user + pub available: u64, + /// total number of inodes + pub total_inodes: u64, + /// free number of inodes + pub free_inodes: u64, + /// the type of the filesystem (see statfs64(2)) + pub fs_type: i64, + /// the filesystem id + pub fs_id: libc::fsid_t, +} + +/// Get file system information from path +pub fn fs_info(path: &P) -> nix::Result { + let mut stat: libc::statfs64 = unsafe { std::mem::zeroed() }; + + 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(FileSystemInformation { + total: stat.f_blocks * bsize, + used: (stat.f_blocks - stat.f_bfree) * bsize, + available: stat.f_bavail * bsize, + total_inodes: stat.f_files, + free_inodes: stat.f_ffree, + fs_type: stat.f_type, + fs_id: stat.f_fsid, + }) +} -- 2.30.2