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| <h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>nix</a>::<wbr><a href='index.html'>unistd</a>::<wbr><a class="fn" href=''>mkstemp</a></span><span class='out-of-band'><span id='render-detail'> |
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| </span><a class='srclink' href='../../src/nix/unistd.rs.html#811-820' title='goto source code'>[src]</a></span></h1> |
| <pre class='rust fn'>pub fn mkstemp<P: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="../../nix/trait.NixPath.html" title="trait nix::NixPath">NixPath</a>>(template: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>P) -> <a class="type" href="../../nix/type.Result.html" title="type nix::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="type" href="https://doc.rust-lang.org/nightly/std/sys/imp/ext/io/type.RawFd.html" title="type std::sys::imp::ext::io::RawFd">RawFd</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/std/path/struct.PathBuf.html" title="struct std::path::PathBuf">PathBuf</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>></pre><div class='docblock'><p>Creates a regular file which persists even after process termination</p> |
| |
| <ul> |
| <li><code>template</code>: a path whose 6 rightmost characters must be X, e.g. /tmp/tmpfile_XXXXXX</li> |
| <li>returns: tuple of file descriptor and filename</li> |
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| <p>Err is returned either if no temporary filename could be created or the template doesn't |
| end with XXXXXX</p> |
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| <h1 id='example' class='section-header'><a href='#example'>Example</a></h1> |
| <pre class="rust rust-example-rendered"> |
| <span class="kw">use</span> <span class="ident">nix</span>::<span class="ident">unistd</span>; |
| |
| <span class="kw">let</span> <span class="ident">fd</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">unistd</span>::<span class="ident">mkstemp</span>(<span class="string">"/tmp/tempfile_XXXXXX"</span>) { |
| <span class="prelude-val">Ok</span>((<span class="ident">fd</span>, <span class="ident">path</span>)) <span class="op">=></span> { |
| <span class="ident">unistd</span>::<span class="ident">unlink</span>(<span class="ident">path</span>.<span class="ident">as_path</span>()).<span class="ident">unwrap</span>(); <span class="comment">// flag file to be deleted at app termination</span> |
| <span class="ident">fd</span> |
| } |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="macro">panic</span><span class="macro">!</span>(<span class="string">"mkstemp failed: {}"</span>, <span class="ident">e</span>) |
| }; |
| <span class="comment">// do something with fd</span></pre> |
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