rCore-Tutorial-v3/ch6/easy_fs/trait.BlockDevice.html
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<!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="Trait for block devices which reads and writes data in the unit of blocks"><meta name="keywords" content="rust, rustlang, rust-lang, BlockDevice"><title>BlockDevice in easy_fs - Rust</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" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../dark.css" disabled><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../storage.js"></script><script src="../crates.js"></script><script defer src="../main.js"></script>
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</a><h2 class="location"><a href="#">BlockDevice</a></h2><div class="sidebar-elems"><section><div class="block"><h3 class="sidebar-title"><a href="#required-methods">Required Methods</a></h3><ul><li><a href="#tymethod.read_block">read_block</a></li><li><a href="#tymethod.write_block">write_block</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#implementors">Implementors</a></h3></div></section><h2 class="location"><a href="index.html">In easy_fs</a></h2><div id="sidebar-vars" data-name="BlockDevice" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../easy_fs/index.html"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></a><nav class="sub"><div class="theme-picker hidden"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="22" height="22" alt="Pick another theme!" src="../brush.svg"></button><div id="theme-choices" role="menu"></div></div><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"><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><div class="main-heading">
<h1 class="fqn"><span class="in-band">Trait <a href="index.html">easy_fs</a>::<wbr><a class="trait" href="#">BlockDevice</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span></h1><span class="out-of-band"><a class="srclink" href="../src/easy_fs/block_dev.rs.html#4-9">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="docblock item-decl"><pre class="rust trait"><code>pub trait BlockDevice: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> {
fn <a href="#tymethod.read_block" class="fnname">read_block</a>(&amp;self, block_id: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.usize.html">usize</a>, buf: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">&amp;mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">]</a>);
<span class="item-spacer"></span> fn <a href="#tymethod.write_block" class="fnname">write_block</a>(&amp;self, block_id: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.usize.html">usize</a>, buf: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">&amp;[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">]</a>);
}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Trait for block devices
which reads and writes data in the unit of blocks</p>
</div></details><h2 id="required-methods" class="small-section-header">Required methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="tymethod.read_block" class="method has-srclink"><div class="rightside"><a class="srclink" href="../src/easy_fs/block_dev.rs.html#6">source</a></div><h4 class="code-header">fn <a href="#tymethod.read_block" class="fnname">read_block</a>(&amp;self, block_id: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.usize.html">usize</a>, buf: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">&amp;mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">]</a>)</h4></div></summary><div class="docblock"><p>Read data form block to buffer</p>
</div></details><details class="rustdoc-toggle" open><summary><div id="tymethod.write_block" class="method has-srclink"><div class="rightside"><a class="srclink" href="../src/easy_fs/block_dev.rs.html#8">source</a></div><h4 class="code-header">fn <a href="#tymethod.write_block" class="fnname">write_block</a>(&amp;self, block_id: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.usize.html">usize</a>, buf: <a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">&amp;[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/core/primitive.slice.html">]</a>)</h4></div></summary><div class="docblock"><p>Write data from buffer to block</p>
</div></details></div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"></div><script type="text/javascript" src="../implementors/easy_fs/trait.BlockDevice.js" async></script></section><section id="search" class="content hidden"></section></div></main><div id="rustdoc-vars" data-root-path="../" data-current-crate="easy_fs" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.62.0-nightly (1f7fb6413 2022-04-10)" ></div>
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