| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/sunhe/incubator-teaclave/third_party/rust-sgx-sdk/sgx_protected_fs/tfs/src/sys/host/ufs.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>ufs.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../../normalize.css"><link rel="stylesheet" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../dark.css" disabled><link rel="stylesheet" href="../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../storage.js"></script><script defer src="../../../../source-script.js"></script><script defer src="../../../../source-files.js"></script><script defer src="../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../sgx_tprotected_fs/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../../sgx_tprotected_fs/index.html"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License.. |
| |
| </span><span class="kw">use </span><span class="kw">super</span>::HostFs; |
| <span class="kw">use </span><span class="kw">crate</span>::sys::error::FsResult; |
| <span class="kw">use </span><span class="kw">crate</span>::sys::node::NODE_SIZE; |
| <span class="kw">use </span>sgx_types::error::errno::<span class="kw-2">*</span>; |
| <span class="kw">use </span>sgx_types::error::SgxStatus; |
| <span class="kw">use </span>sgx_uprotected_fs <span class="kw">as </span>ufs; |
| <span class="kw">use </span>std::path::Path; |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>HostFile { |
| file: ufs::HostFile, |
| size: usize, |
| } |
| |
| <span class="kw">impl </span>HostFile { |
| <span class="kw">pub fn </span>open(name: <span class="kw-2">&</span>Path, readonly: bool) -> FsResult<HostFile> { |
| <span class="kw">let </span>file = ufs::HostFile::open(name, readonly)<span class="question-mark">?</span>; |
| <span class="kw">let </span>size = file.size()<span class="question-mark">?</span>; |
| |
| <span class="macro">ensure!</span>( |
| size <= i64::MAX <span class="kw">as </span>usize && size % NODE_SIZE == <span class="number">0</span>, |
| <span class="macro">esgx!</span>(SgxStatus::NotSgxFile) |
| ); |
| <span class="prelude-val">Ok</span>(HostFile { file, size }) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>size(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <span class="self">self</span>.size |
| } |
| } |
| |
| <span class="kw">impl </span>HostFs <span class="kw">for </span>HostFile { |
| <span class="kw">fn </span>read(<span class="kw-2">&mut </span><span class="self">self</span>, number: u64, node: <span class="kw-2">&mut </span><span class="kw">dyn </span>AsMut<[u8]>) -> FsResult { |
| <span class="self">self</span>.file.read(number, node.as_mut()).map_err(|e| <span class="macro">eos!</span>(e)) |
| } |
| |
| <span class="kw">fn </span>write(<span class="kw-2">&mut </span><span class="self">self</span>, number: u64, node: <span class="kw-2">&</span><span class="kw">dyn </span>AsRef<[u8]>) -> FsResult { |
| <span class="self">self</span>.file.write(number, node.as_ref()).map_err(|e| <span class="macro">eos!</span>(e)) |
| } |
| |
| <span class="kw">fn </span>flush(<span class="kw-2">&mut </span><span class="self">self</span>) -> FsResult { |
| <span class="self">self</span>.file.flush().map_err(|<span class="kw">_</span>| <span class="macro">esgx!</span>(SgxStatus::FluchFailed)) |
| } |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>RecoveryFile { |
| file: ufs::RecoveryFile, |
| } |
| |
| <span class="kw">impl </span>RecoveryFile { |
| <span class="kw">pub fn </span>open(name: <span class="kw-2">&</span>Path) -> FsResult<RecoveryFile> { |
| <span class="kw">let </span>file = ufs::RecoveryFile::open(name)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(RecoveryFile { file }) |
| } |
| } |
| |
| <span class="kw">impl </span>HostFs <span class="kw">for </span>RecoveryFile { |
| <span class="kw">fn </span>read(<span class="kw-2">&mut </span><span class="self">self</span>, _number: u64, _node: <span class="kw-2">&mut </span><span class="kw">dyn </span>AsMut<[u8]>) -> FsResult { |
| <span class="macro">bail!</span>(<span class="macro">eos!</span>(ENOTSUP)) |
| } |
| |
| <span class="kw">fn </span>write(<span class="kw-2">&mut </span><span class="self">self</span>, _number: u64, node: <span class="kw-2">&</span><span class="kw">dyn </span>AsRef<[u8]>) -> FsResult { |
| <span class="self">self</span>.file.write(node.as_ref()).map_err(|e| <span class="macro">eos!</span>(e)) |
| } |
| |
| <span class="kw">fn </span>flush(<span class="kw-2">&mut </span><span class="self">self</span>) -> FsResult { |
| <span class="macro">bail!</span>(<span class="macro">eos!</span>(ENOTSUP)) |
| } |
| } |
| |
| <span class="kw">pub fn </span>try_exists(name: <span class="kw-2">&</span>Path) -> FsResult<bool> { |
| ufs::try_exists(name).map_err(|e| <span class="macro">eos!</span>(e)) |
| } |
| |
| <span class="kw">pub fn </span>remove(name: <span class="kw-2">&</span>Path) -> FsResult { |
| ufs::remove(name).map_err(|e| <span class="macro">eos!</span>(e)) |
| } |
| |
| <span class="kw">pub fn </span>recovery(source: <span class="kw-2">&</span>Path, recovery: <span class="kw-2">&</span>Path) -> FsResult { |
| ufs::recovery(source, recovery).map_err(|e| <span class="macro">eos!</span>(e)) |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="sgx_tprotected_fs" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
