<!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/max_connection_rate.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>max_connection_rate.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" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled><link rel="stylesheet" type="text/css" 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="mobile-topbar"><button class="sidebar-menu-toggle">☰</button><a class="sidebar-logo" href="../../../actix_settings/index.html"><div class="logo-container"><img src="https://actix.rs/img/logo.png" alt="logo"></div></a><h2 class="location"></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../../actix_settings/index.html"><div class="logo-container">
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</pre><pre class="rust"><code><span class="kw">use </span>std::fmt;
<span class="kw">use </span>serde::de;
<span class="kw">use crate</span>::{AsResult, Error, Parse};
<span class="doccomment">/// The maximum per-worker concurrent TLS connection limit.
///
/// All listeners will stop accepting connections when this limit is reached. It can be used to
/// limit the global TLS CPU usage. By default max connections is set to a 256. Takes a string
/// value: Either "default", or an integer N > 0 e.g. "6".
</span><span class="attribute">#[derive(Debug, Clone, PartialEq, Eq, Hash)]
</span><span class="kw">pub enum </span>MaxConnectionRate {
<span class="doccomment">/// The default connection limit. See struct docs.
</span>Default,
<span class="doccomment">/// A specific connection limit.
</span>Manual(usize),
}
<span class="kw">impl </span>Parse <span class="kw">for </span>MaxConnectionRate {
<span class="kw">fn </span>parse(string: <span class="kw-2">&</span>str) -> AsResult<<span class="self">Self</span>> {
<span class="kw">match </span>string {
<span class="string">"default" </span>=> <span class="prelude-val">Ok</span>(MaxConnectionRate::Default),
string => <span class="kw">match </span>string.parse::<usize>() {
<span class="prelude-val">Ok</span>(val) => <span class="prelude-val">Ok</span>(MaxConnectionRate::Manual(val)),
<span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="prelude-val">Err</span>(<span class="macro">InvalidValue! </span>{
expected: <span class="string">"an integer > 0"</span>,
got: string,
}),
},
}
}
}
<span class="kw">impl</span><<span class="lifetime">'de</span>> de::Deserialize<<span class="lifetime">'de</span>> <span class="kw">for </span>MaxConnectionRate {
<span class="kw">fn </span>deserialize<D>(deserializer: D) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, D::Error>
<span class="kw">where
</span>D: de::Deserializer<<span class="lifetime">'de</span>>,
{
<span class="kw">struct </span>MaxConnectionRateVisitor;
<span class="kw">impl</span><<span class="lifetime">'de</span>> de::Visitor<<span class="lifetime">'de</span>> <span class="kw">for </span>MaxConnectionRateVisitor {
<span class="kw">type </span>Value = MaxConnectionRate;
<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 {
<span class="kw">let </span>msg = <span class="string">"Either \"default\" or a string containing an integer > 0"</span>;
f.write_str(msg)
}
<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>
<span class="kw">where
</span>E: de::Error,
{
<span class="kw">match </span>MaxConnectionRate::parse(value) {
<span class="prelude-val">Ok</span>(max_connection_rate) => <span class="prelude-val">Ok</span>(max_connection_rate),
<span class="prelude-val">Err</span>(Error::InvalidValue { expected, got, .. }) => <span class="prelude-val">Err</span>(
de::Error::invalid_value(de::Unexpected::Str(<span class="kw-2">&</span>got), <span class="kw-2">&</span>expected),
),
<span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="macro">unreachable!</span>(),
}
}
}
deserializer.deserialize_string(MaxConnectionRateVisitor)
}
}
</code></pre></div>
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