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<section id='main' class="content"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class="rust ">
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">&quot;linux&quot;</span>, <span class="ident">target_os</span> <span class="op">=</span> <span class="string">&quot;android&quot;</span>))]</span>
<span class="kw">use</span> <span class="ident">sys</span>::<span class="ident">time</span>::<span class="ident">TimeSpec</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">&quot;linux&quot;</span>, <span class="ident">target_os</span> <span class="op">=</span> <span class="string">&quot;android&quot;</span>))]</span>
<span class="kw">use</span> <span class="ident">sys</span>::<span class="ident">signal</span>::<span class="ident">SigSet</span>;
<span class="kw">use</span> <span class="ident">libc</span>;
<span class="kw">use</span> {<span class="ident">Errno</span>, <span class="prelude-ty">Result</span>};
<span class="attribute">#[<span class="ident">repr</span>(<span class="ident">C</span>)]</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Copy</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">PollFd</span> {
<span class="ident">pollfd</span>: <span class="ident">libc</span>::<span class="ident">pollfd</span>,
}
<span class="kw">impl</span> <span class="ident">PollFd</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">fd</span>: <span class="ident">libc</span>::<span class="ident">c_int</span>, <span class="ident">events</span>: <span class="ident">EventFlags</span>, <span class="ident">revents</span>: <span class="ident">EventFlags</span>) <span class="op">-&gt;</span> <span class="ident">PollFd</span> {
<span class="ident">PollFd</span> {
<span class="ident">pollfd</span>: <span class="ident">libc</span>::<span class="ident">pollfd</span> {
<span class="ident">fd</span>: <span class="ident">fd</span>,
<span class="ident">events</span>: <span class="ident">events</span>.<span class="ident">bits</span>(),
<span class="ident">revents</span>: <span class="ident">revents</span>.<span class="ident">bits</span>(),
},
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">revents</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-&gt;</span> <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">EventFlags</span><span class="op">&gt;</span> {
<span class="ident">EventFlags</span>::<span class="ident">from_bits</span>(<span class="self">self</span>.<span class="ident">pollfd</span>.<span class="ident">revents</span>)
}
}
<span class="macro">libc_bitflags</span><span class="macro">!</span> {
<span class="kw">pub</span> <span class="ident">flags</span> <span class="ident">EventFlags</span>: <span class="ident">libc</span>::<span class="ident">c_short</span> {
<span class="ident">POLLIN</span>,
<span class="ident">POLLPRI</span>,
<span class="ident">POLLOUT</span>,
<span class="ident">POLLRDNORM</span>,
<span class="ident">POLLWRNORM</span>,
<span class="ident">POLLRDBAND</span>,
<span class="ident">POLLWRBAND</span>,
<span class="ident">POLLERR</span>,
<span class="ident">POLLHUP</span>,
<span class="ident">POLLNVAL</span>,
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">poll</span>(<span class="ident">fds</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="ident">PollFd</span>], <span class="ident">timeout</span>: <span class="ident">libc</span>::<span class="ident">c_int</span>) <span class="op">-&gt;</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">libc</span>::<span class="ident">c_int</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">res</span> <span class="op">=</span> <span class="kw">unsafe</span> {
<span class="ident">libc</span>::<span class="ident">poll</span>(<span class="ident">fds</span>.<span class="ident">as_mut_ptr</span>() <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">libc</span>::<span class="ident">pollfd</span>,
<span class="ident">fds</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">libc</span>::<span class="ident">nfds_t</span>,
<span class="ident">timeout</span>)
};
<span class="ident">Errno</span>::<span class="ident">result</span>(<span class="ident">res</span>)
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">&quot;linux&quot;</span>, <span class="ident">target_os</span> <span class="op">=</span> <span class="string">&quot;android&quot;</span>))]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ppoll</span>(<span class="ident">fds</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="ident">PollFd</span>], <span class="ident">timeout</span>: <span class="ident">TimeSpec</span>, <span class="ident">sigmask</span>: <span class="ident">SigSet</span>) <span class="op">-&gt;</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">libc</span>::<span class="ident">c_int</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="ident">res</span> <span class="op">=</span> <span class="kw">unsafe</span> {
<span class="ident">libc</span>::<span class="ident">ppoll</span>(<span class="ident">fds</span>.<span class="ident">as_mut_ptr</span>() <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">libc</span>::<span class="ident">pollfd</span>,
<span class="ident">fds</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">libc</span>::<span class="ident">nfds_t</span>,
<span class="ident">timeout</span>.<span class="ident">as_ref</span>(),
<span class="ident">sigmask</span>.<span class="ident">as_ref</span>())
};
<span class="ident">Errno</span>::<span class="ident">result</span>(<span class="ident">res</span>)
}
</pre>
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