| <!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 `quiche/src/recovery/bbr/pacing.rs`."><title>pacing.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-b21aa549bf6d91ff.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="quiche" data-themes="" data-resource-suffix="" data-rustdoc-version="1.80.0-nightly (79734f1db 2024-05-02)" data-channel="nightly" data-search-js="search-bf21c90c8c1d92b1.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../../../static.files/storage-e32f0c247825364d.js"></script><script defer src="../../../../static.files/src-script-e66d777a5a92e9b2.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-20a3ad099b048cf2.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-09095024cf37855e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer"></div><main><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../../../quiche/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Type ‘S’ or ‘/’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../../../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../settings.html" title="settings">Settings</a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><div data-nosnippet><pre class="src-line-numbers"><a href="#1" id="1">1</a> |
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| </pre></div><pre class="rust"><code><span class="comment">// Copyright (C) 2022, Cloudflare, Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // |
| // * Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| // IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
| // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| </span><span class="kw">use </span><span class="kw">crate</span>::recovery::Recovery; |
| |
| <span class="comment">// BBR Transmit Packet Pacing Functions |
| // |
| |
| // 4.2.1. Pacing Rate |
| </span><span class="kw">pub fn </span>bbr_set_pacing_rate_with_gain(r: <span class="kw-2">&mut </span>Recovery, pacing_gain: f64) { |
| <span class="kw">let </span>rate = (pacing_gain * r.bbr_state.btlbw <span class="kw">as </span>f64) <span class="kw">as </span>u64; |
| |
| <span class="kw">if </span>r.bbr_state.filled_pipe || rate > r.bbr_state.pacing_rate { |
| r.bbr_state.pacing_rate = rate; |
| } |
| } |
| |
| <span class="kw">pub fn </span>bbr_set_pacing_rate(r: <span class="kw-2">&mut </span>Recovery) { |
| bbr_set_pacing_rate_with_gain(r, r.bbr_state.pacing_gain); |
| } |
| </code></pre></div></section></main></body></html> |