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| </pre><div class="example-wrap"><pre class="rust "> |
| <span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">event</span>::<span class="ident">Event</span>; |
| <span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">sys</span>; |
| |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fmt</span>; |
| |
| <span class="doccomment">/// A collection of readiness events.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// `Events` is passed as an argument to [`Poll::poll`] and will be used to</span> |
| <span class="doccomment">/// receive any new readiness events received since the last poll. Usually, a</span> |
| <span class="doccomment">/// single `Events` instance is created at the same time as a [`Poll`] and</span> |
| <span class="doccomment">/// reused on each call to [`Poll::poll`].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// See [`Poll`] for more documentation on polling.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [`Poll::poll`]: ../struct.Poll.html#method.poll</span> |
| <span class="doccomment">/// [`Poll`]: ../struct.Poll.html</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>, <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>), <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```ignore"</span>)]</span> |
| <span class="doccomment">/// # use std::error::Error;</span> |
| <span class="doccomment">/// # fn main() -> Result<(), Box<dyn Error>> {</span> |
| <span class="doccomment">/// use mio::{Events, Poll};</span> |
| <span class="doccomment">/// use std::time::Duration;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let mut events = Events::with_capacity(1024);</span> |
| <span class="doccomment">/// let mut poll = Poll::new()?;</span> |
| <span class="doccomment">/// #</span> |
| <span class="doccomment">/// # assert!(events.is_empty());</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // Register `event::Source`s with `poll`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// poll.poll(&mut events, Some(Duration::from_millis(100)))?;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// for event in events.iter() {</span> |
| <span class="doccomment">/// println!("Got an event for {:?}", event.token());</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// # Ok(())</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Events</span> { |
| <span class="ident">inner</span>: <span class="ident">sys</span>::<span class="ident">Events</span>, |
| } |
| |
| <span class="doccomment">/// [`Events`] iterator.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This struct is created by the [`iter`] method on [`Events`].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [`Events`]: struct.Events.html</span> |
| <span class="doccomment">/// [`iter`]: struct.Events.html#method.iter</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>, <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>), <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```ignore"</span>)]</span> |
| <span class="doccomment">/// # use std::error::Error;</span> |
| <span class="doccomment">/// # fn main() -> Result<(), Box<dyn Error>> {</span> |
| <span class="doccomment">/// use mio::{Events, Poll};</span> |
| <span class="doccomment">/// use std::time::Duration;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let mut events = Events::with_capacity(1024);</span> |
| <span class="doccomment">/// let mut poll = Poll::new()?;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // Register handles with `poll`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// poll.poll(&mut events, Some(Duration::from_millis(100)))?;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// for event in events.iter() {</span> |
| <span class="doccomment">/// println!("Got an event for {:?}", event.token());</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// # Ok(())</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Iter</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> { |
| <span class="ident">inner</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">Events</span>, |
| <span class="ident">pos</span>: <span class="ident">usize</span>, |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Events</span> { |
| <span class="doccomment">/// Return a new `Events` capable of holding up to `capacity` events.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// use mio::Events;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let events = Events::with_capacity(1024);</span> |
| <span class="doccomment">/// assert_eq!(1024, events.capacity());</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">with_capacity</span>(<span class="ident">capacity</span>: <span class="ident">usize</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Events</span> { |
| <span class="ident">Events</span> { |
| <span class="ident">inner</span>: <span class="ident">sys</span>::<span class="ident">Events</span>::<span class="ident">with_capacity</span>(<span class="ident">capacity</span>), |
| } |
| } |
| |
| <span class="doccomment">/// Returns the number of `Event` values that `self` can hold.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// use mio::Events;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let events = Events::with_capacity(1024);</span> |
| <span class="doccomment">/// assert_eq!(1024, events.capacity());</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">capacity</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">usize</span> { |
| <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">capacity</span>() |
| } |
| |
| <span class="doccomment">/// Returns `true` if `self` contains no `Event` values.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// ```</span> |
| <span class="doccomment">/// use mio::Events;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let events = Events::with_capacity(1024);</span> |
| <span class="doccomment">/// assert!(events.is_empty());</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">is_empty</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">bool</span> { |
| <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">is_empty</span>() |
| } |
| |
| <span class="doccomment">/// Returns an iterator over the `Event` values.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>, <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>), <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```ignore"</span>)]</span> |
| <span class="doccomment">/// # use std::error::Error;</span> |
| <span class="doccomment">/// # fn main() -> Result<(), Box<dyn Error>> {</span> |
| <span class="doccomment">/// use mio::{Events, Poll};</span> |
| <span class="doccomment">/// use std::time::Duration;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let mut events = Events::with_capacity(1024);</span> |
| <span class="doccomment">/// let mut poll = Poll::new()?;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // Register handles with `poll`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// poll.poll(&mut events, Some(Duration::from_millis(100)))?;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// for event in events.iter() {</span> |
| <span class="doccomment">/// println!("Got an event for {:?}", event.token());</span> |
| <span class="doccomment">/// }</span> |
| <span class="doccomment">/// # Ok(())</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">iter</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">Iter</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span> { |
| <span class="ident">Iter</span> { |
| <span class="ident">inner</span>: <span class="self">self</span>, |
| <span class="ident">pos</span>: <span class="number">0</span>, |
| } |
| } |
| |
| <span class="doccomment">/// Clearing all `Event` values from container explicitly.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Notes</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Events are cleared before every `poll`, so it is not required to call</span> |
| <span class="doccomment">/// this manually.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Examples</span> |
| <span class="doccomment">///</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>, <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```"</span>)]</span> |
| <span class="attribute">#[<span class="ident">cfg_attr</span>(<span class="ident">not</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os-poll"</span>), <span class="ident">doc</span> <span class="op">=</span> <span class="string">"```ignore"</span>)]</span> |
| <span class="doccomment">/// # use std::error::Error;</span> |
| <span class="doccomment">/// # fn main() -> Result<(), Box<dyn Error>> {</span> |
| <span class="doccomment">/// use mio::{Events, Poll};</span> |
| <span class="doccomment">/// use std::time::Duration;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// let mut events = Events::with_capacity(1024);</span> |
| <span class="doccomment">/// let mut poll = Poll::new()?;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // Register handles with `poll`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// poll.poll(&mut events, Some(Duration::from_millis(100)))?;</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// // Clear all events.</span> |
| <span class="doccomment">/// events.clear();</span> |
| <span class="doccomment">/// assert!(events.is_empty());</span> |
| <span class="doccomment">/// # Ok(())</span> |
| <span class="doccomment">/// # }</span> |
| <span class="doccomment">/// ```</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">clear</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { |
| <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">clear</span>(); |
| } |
| |
| <span class="doccomment">/// Returns the inner `sys::Events`.</span> |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">sys</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">sys</span>::<span class="ident">Events</span> { |
| <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">inner</span> |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">IntoIterator</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">Events</span> { |
| <span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">Event</span>; |
| <span class="kw">type</span> <span class="ident">IntoIter</span> <span class="op">=</span> <span class="ident">Iter</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span>; |
| |
| <span class="kw">fn</span> <span class="ident">into_iter</span>(<span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="self">Self</span>::<span class="ident">IntoIter</span> { |
| <span class="self">self</span>.<span class="ident">iter</span>() |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">Iterator</span> <span class="kw">for</span> <span class="ident">Iter</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> { |
| <span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">Event</span>; |
| |
| <span class="kw">fn</span> <span class="ident">next</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="self">Self</span>::<span class="ident">Item</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">ret</span> <span class="op">=</span> <span class="self">self</span> |
| .<span class="ident">inner</span> |
| .<span class="ident">inner</span> |
| .<span class="ident">get</span>(<span class="self">self</span>.<span class="ident">pos</span>) |
| .<span class="ident">map</span>(<span class="ident">Event</span>::<span class="ident">from_sys_event_ref</span>); |
| <span class="self">self</span>.<span class="ident">pos</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>; |
| <span class="ident">ret</span> |
| } |
| |
| <span class="kw">fn</span> <span class="ident">size_hint</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> (<span class="ident">usize</span>, <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span>) { |
| <span class="kw">let</span> <span class="ident">size</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">inner</span>.<span class="ident">len</span>(); |
| (<span class="ident">size</span>, <span class="prelude-val">Some</span>(<span class="ident">size</span>)) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">count</span>(<span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">usize</span> { |
| <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">inner</span>.<span class="ident">len</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">Events</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { |
| <span class="ident">f</span>.<span class="ident">debug_list</span>().<span class="ident">entries</span>(<span class="self">self</span>).<span class="ident">finish</span>() |
| } |
| } |
| </pre></div> |
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