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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="API documentation for the Rust `tempfile` crate."><meta name="keywords" content="rust, rustlang, rust-lang, tempfile"><title>tempfile - Rust</title><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="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script></head><body class="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><p class='location'>Crate tempfile</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</a></li><li><a href="#functions">Functions</a></li></ul></div><p class='location'></p><script>window.sidebarCurrent = {name: 'tempfile', ty: 'mod', relpath: '../'};</script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Crate <a class="mod" href=''>tempfile</a></span><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../src/tempfile/lib.rs.html#1-57' title='goto source code'>[src]</a></span></h1><div class='docblock'><p>Securely create and manage temporary files. Temporary files created by this create are
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automatically deleted.</p>
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<p>This crate provides two temporary file variants: a <code>tempfile()</code> function that returns standard
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<code>File</code> objects and <code>NamedTempFile</code>. When choosing between the variants, prefer <code>tempfile()</code>
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unless you either need to know the file's path or to be able to persist it.</p>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">tempfile</span>::<span class="ident">tempfile</span>;
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fs</span>::<span class="ident">File</span>;
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">file</span>: <span class="ident">File</span> <span class="op">=</span> <span class="ident">tempfile</span>().<span class="ident">expect</span>(<span class="string">"failed to create temporary file"</span>);</pre>
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<h1 id="differences" class="section-header"><a href="#differences">Differences</a></h1><h2 id="resource-leaking" class="section-header"><a href="#resource-leaking">Resource Leaking</a></h2>
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<p><code>tempfile()</code> will (almost) never fail to cleanup temporary files but <code>NamedTempFile</code> will if
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its destructor doesn't run. This is because <code>tempfile()</code> relies on the OS to cleanup the
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underlying file so the file while <code>NamedTempFile</code> relies on its destructor to do so.</p>
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<h2 id="security" class="section-header"><a href="#security">Security</a></h2>
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<p>In the presence of pathological temporary file cleaner, relying on file paths is unsafe because
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a temporary file cleaner could delete the temporary file which an attacker could then replace.</p>
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<p><code>tempfile()</code> doesn't rely on file paths so this isn't an issue. However, <code>NamedTempFile</code> does
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rely on file paths.</p>
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</div><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
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<table>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.NamedTempFile.html"
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title='struct tempfile::NamedTempFile'>NamedTempFile</a></td>
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<td class='docblock-short'>
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<p>A named temporary file.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.NamedTempFileOptions.html"
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title='struct tempfile::NamedTempFileOptions'>NamedTempFileOptions</a></td>
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<td class='docblock-short'>
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<p>Create a new temporary file with custom parameters.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="struct" href="struct.PersistError.html"
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title='struct tempfile::PersistError'>PersistError</a></td>
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<td class='docblock-short'>
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<p>Error returned when persisting a temporary file fails</p>
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</td>
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</tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
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<table>
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<tr class=' module-item'>
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<td><a class="fn" href="fn.tempfile.html"
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title='fn tempfile::tempfile'>tempfile</a></td>
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<td class='docblock-short'>
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<p>Create an unnamed temporary file.</p>
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</td>
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</tr>
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<tr class=' module-item'>
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<td><a class="fn" href="fn.tempfile_in.html"
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title='fn tempfile::tempfile_in'>tempfile_in</a></td>
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<td class='docblock-short'>
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<p>Create an unnamed temporary file in the specified directory.</p>
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</td>
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</tr></table></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../";window.currentCrate = "tempfile";</script><script src="../aliases.js"></script><script src="../main.js"></script><script defer src="../search-index.js"></script></body></html> |