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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="Source of the Rust file `actix-settings/src/settings/timeout.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>timeout.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="icon" href="https://actix.rs/favicon.ico"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../actix_settings/index.html">
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<img src="https://actix.rs/img/logo.png" alt="logo"></a><form class="search-form"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
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</pre><pre class="rust"><code><span class="kw">use </span>std::fmt;
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<span class="kw">use </span>once_cell::sync::Lazy;
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<span class="kw">use </span>regex::Regex;
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<span class="kw">use </span>serde::de;
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<span class="kw">use crate</span>::{AsResult, Error, Parse};
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<span class="doccomment">/// A timeout duration in milliseconds or seconds.
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</span><span class="attribute">#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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</span><span class="kw">pub enum </span>Timeout {
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<span class="doccomment">/// The default timeout. Depends on context.
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</span>Default,
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<span class="doccomment">/// Timeout in milliseconds.
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</span>Milliseconds(usize),
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<span class="doccomment">/// Timeout in seconds.
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</span>Seconds(usize),
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}
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<span class="kw">impl </span>Parse <span class="kw">for </span>Timeout {
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<span class="kw">fn </span>parse(string: <span class="kw-2">&</span>str) -> AsResult<<span class="self">Self</span>> {
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<span class="kw">pub static </span>FMT: Lazy<Regex> = Lazy::new(|| {
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Regex::new(<span class="string">r"^\d+ (milliseconds|seconds)$"</span>).expect(<span class="string">"Failed to compile regex: FMT"</span>)
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});
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<span class="kw">pub static </span>DIGITS: Lazy<Regex> =
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Lazy::new(|| Regex::new(<span class="string">r"^\d+"</span>).expect(<span class="string">"Failed to compile regex: DIGITS"</span>));
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<span class="kw">pub static </span>UNIT: Lazy<Regex> = Lazy::new(|| {
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Regex::new(<span class="string">r"(milliseconds|seconds)$"</span>).expect(<span class="string">"Failed to compile regex: UNIT"</span>)
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});
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<span class="macro">macro_rules! </span>invalid_value {
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(<span class="macro-nonterminal">$got</span>:expr) => {
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<span class="prelude-val">Err</span>(<span class="macro">InvalidValue! </span>{
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expected: <span class="string">"a string of the format \"N seconds\" or \"N milliseconds\" where N is an integer > 0"</span>,
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got: <span class="macro-nonterminal">$got</span>,
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})
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}
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}
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<span class="kw">match </span>string {
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<span class="string">"default" </span>=> <span class="prelude-val">Ok</span>(Timeout::Default),
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string <span class="kw">if </span>!FMT.is_match(string) => <span class="macro">invalid_value!</span>(string),
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string => <span class="kw">match </span>(DIGITS.find(string), UNIT.find(string)) {
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(<span class="prelude-val">None</span>, <span class="kw">_</span>) | (<span class="kw">_</span>, <span class="prelude-val">None</span>) => <span class="macro">invalid_value!</span>(string),
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(<span class="prelude-val">Some</span>(digits), <span class="prelude-val">Some</span>(unit)) => {
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<span class="kw">let </span>digits = <span class="kw-2">&</span>string[digits.range()];
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<span class="kw">let </span>unit = <span class="kw-2">&</span>string[unit.range()];
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<span class="kw">match </span>(digits.parse(), unit) {
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(<span class="prelude-val">Ok</span>(n), <span class="string">"milliseconds"</span>) => <span class="prelude-val">Ok</span>(Timeout::Milliseconds(n)),
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(<span class="prelude-val">Ok</span>(n), <span class="string">"seconds"</span>) => <span class="prelude-val">Ok</span>(Timeout::Seconds(n)),
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<span class="kw">_ </span>=> <span class="macro">invalid_value!</span>(string),
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}
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}
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},
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}
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}
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}
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<span class="kw">impl</span><<span class="lifetime">'de</span>> de::Deserialize<<span class="lifetime">'de</span>> <span class="kw">for </span>Timeout {
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<span class="kw">fn </span>deserialize<D>(deserializer: D) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, D::Error>
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<span class="kw">where
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</span>D: de::Deserializer<<span class="lifetime">'de</span>>,
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{
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<span class="kw">struct </span>TimeoutVisitor;
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<span class="kw">impl</span><<span class="lifetime">'de</span>> de::Visitor<<span class="lifetime">'de</span>> <span class="kw">for </span>TimeoutVisitor {
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<span class="kw">type </span>Value = Timeout;
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<span class="kw">fn </span>expecting(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result {
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<span class="kw">let </span>msg = <span class="string">"Either \"default\", \"disabled\", \"os\", or a string of the format \"N seconds\" where N is an integer > 0"</span>;
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f.write_str(msg)
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}
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<span class="kw">fn </span>visit_str<E>(<span class="self">self</span>, value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::Value, E>
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<span class="kw">where
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</span>E: de::Error,
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{
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<span class="kw">match </span>Timeout::parse(value) {
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<span class="prelude-val">Ok</span>(num_workers) => <span class="prelude-val">Ok</span>(num_workers),
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<span class="prelude-val">Err</span>(Error::InvalidValue { expected, got, .. }) => <span class="prelude-val">Err</span>(
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de::Error::invalid_value(de::Unexpected::Str(<span class="kw-2">&</span>got), <span class="kw-2">&</span>expected),
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),
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<span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="macro">unreachable!</span>(),
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}
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}
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}
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deserializer.deserialize_string(TimeoutVisitor)
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}
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}
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</code></pre></div>
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</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="actix_settings" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5e9772042 2022-10-29)" ></div></body></html> |