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| <section id='main' class="content"><pre class="line-numbers"><span id="1"> 1</span> |
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| <span class="kw">use</span> <span class="ident">libc</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">io</span>::<span class="ident">RawFd</span>; |
| <span class="kw">use</span> {<span class="ident">Errno</span>, <span class="prelude-ty">Result</span>}; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ffi</span>::<span class="ident">CStr</span>; |
| |
| <span class="macro">bitflags</span><span class="macro">!</span>( |
| <span class="kw">pub</span> <span class="ident">flags</span> <span class="ident">MemFdCreateFlag</span>: <span class="ident">libc</span>::<span class="ident">c_uint</span> { |
| <span class="kw">const</span> <span class="ident">MFD_CLOEXEC</span> <span class="op">=</span> <span class="number">0x0001</span>, |
| <span class="kw">const</span> <span class="ident">MFD_ALLOW_SEALING</span> <span class="op">=</span> <span class="number">0x0002</span>, |
| } |
| ); |
| |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">memfd_create</span>(<span class="ident">name</span>: <span class="kw-2">&</span><span class="ident">CStr</span>, <span class="ident">flags</span>: <span class="ident">MemFdCreateFlag</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">RawFd</span><span class="op">></span> { |
| <span class="kw">use</span> <span class="ident">sys</span>::<span class="ident">syscall</span>::{<span class="ident">syscall</span>, <span class="ident">MEMFD_CREATE</span>}; |
| <span class="kw">let</span> <span class="ident">res</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">syscall</span>(<span class="ident">MEMFD_CREATE</span>, <span class="ident">name</span>.<span class="ident">as_ptr</span>(), <span class="ident">flags</span>.<span class="ident">bits</span>()) }; |
| |
| <span class="ident">Errno</span>::<span class="ident">result</span>(<span class="ident">res</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">r</span><span class="op">|</span> <span class="ident">r</span> <span class="kw">as</span> <span class="ident">RawFd</span>) |
| } |
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