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22.4362C9.07125 22.5325 9.2775 22.2025 9.2775 21.9137C9.2775 21.6525 9.26375 20.7862 9.26375 19.865C6.5 20.3737 5.785 19.1912 5.565 18.5725C5.44125 18.2562 4.905 17.28 4.4375 17.0187C4.0525 16.8125 3.5025 16.3037 4.42375 16.29C5.29 16.2762 5.90875 17.0875 6.115 17.4175C7.105 19.0812 8.68625 18.6137 9.31875 18.325C9.415 17.61 9.70375 17.1287 10.02 16.8537C7.5725 16.5787 5.015 15.63 5.015 11.4225C5.015 10.2262 5.44125 9.23625 6.1425 8.46625C6.0325 8.19125 5.6475 7.06375 6.2525 5.55125C6.2525 5.55125 7.17375 5.2625 9.2775 6.67875C10.1575 6.43125 11.0925 6.3075 12.0275 6.3075C12.9625 6.3075 13.8975 6.43125 14.7775 6.67875C16.8813 5.24875 17.8025 5.55125 17.8025 5.55125C18.4075 7.06375 18.0225 8.19125 17.9125 8.46625C18.6138 9.23625 19.04 10.2125 19.04 11.4225C19.04 15.6437 16.4688 16.5787 14.0213 16.8537C14.42 17.1975 14.7638 17.8575 14.7638 18.8887C14.7638 20.36 14.75 21.5425 14.75 21.9137C14.75 22.2025 14.9563 22.5462 15.5063 22.4362C19.8513 20.9787 23 16.8537 23 12C23 5.9225 18.0775 1 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flex-lg-row flex-auto rounded rounded-lg-0"> <nav class="HeaderMenu-nav" aria-label="Global"> <ul class="d-lg-flex list-style-none"> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Product <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"github_copilot","context":"product","tag":"link","label":"github_copilot_link_product_navbar"}" href="https://github.com/features/copilot"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-copilot color-fg-subtle mr-3"> <path d="M23.922 16.992c-.861 1.495-5.859 5.023-11.922 5.023-6.063 0-11.061-3.528-11.922-5.023A.641.641 0 0 1 0 16.736v-2.869a.841.841 0 0 1 .053-.22c.372-.935 1.347-2.292 2.605-2.656.167-.429.414-1.055.644-1.517a10.195 10.195 0 0 1-.052-1.086c0-1.331.282-2.499 1.132-3.368.397-.406.89-.717 1.474-.952 1.399-1.136 3.392-2.093 6.122-2.093 2.731 0 4.767.957 6.166 2.093.584.235 1.077.546 1.474.952.85.869 1.132 2.037 1.132 3.368 0 .368-.014.733-.052 1.086.23.462.477 1.088.644 1.517 1.258.364 2.233 1.721 2.605 2.656a.832.832 0 0 1 .053.22v2.869a.641.641 0 0 1-.078.256ZM12.172 11h-.344a4.323 4.323 0 0 1-.355.508C10.703 12.455 9.555 13 7.965 13c-1.725 0-2.989-.359-3.782-1.259a2.005 2.005 0 0 1-.085-.104L4 11.741v6.585c1.435.779 4.514 2.179 8 2.179 3.486 0 6.565-1.4 8-2.179v-6.585l-.098-.104s-.033.045-.085.104c-.793.9-2.057 1.259-3.782 1.259-1.59 0-2.738-.545-3.508-1.492a4.323 4.323 0 0 1-.355-.508h-.016.016Zm.641-2.935c.136 1.057.403 1.913.878 2.497.442.544 1.134.938 2.344.938 1.573 0 2.292-.337 2.657-.751.384-.435.558-1.15.558-2.361 0-1.14-.243-1.847-.705-2.319-.477-.488-1.319-.862-2.824-1.025-1.487-.161-2.192.138-2.533.529-.269.307-.437.808-.438 1.578v.021c0 .265.021.562.063.893Zm-1.626 0c.042-.331.063-.628.063-.894v-.02c-.001-.77-.169-1.271-.438-1.578-.341-.391-1.046-.69-2.533-.529-1.505.163-2.347.537-2.824 1.025-.462.472-.705 1.179-.705 2.319 0 1.211.175 1.926.558 2.361.365.414 1.084.751 2.657.751 1.21 0 1.902-.394 2.344-.938.475-.584.742-1.44.878-2.497Z"></path><path d="M14.5 14.25a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Zm-5 0a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Z"></path> </svg> <div> <div class="color-fg-default h4">GitHub Copilot</div> Write better code with AI </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"security","context":"product","tag":"link","label":"security_link_product_navbar"}" href="https://github.com/features/security"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon 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href="https://github.com/features/actions"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-workflow color-fg-subtle mr-3"> <path d="M1 3a2 2 0 0 1 2-2h6.5a2 2 0 0 1 2 2v6.5a2 2 0 0 1-2 2H7v4.063C7 16.355 7.644 17 8.438 17H12.5v-2.5a2 2 0 0 1 2-2H21a2 2 0 0 1 2 2V21a2 2 0 0 1-2 2h-6.5a2 2 0 0 1-2-2v-2.5H8.437A2.939 2.939 0 0 1 5.5 15.562V11.5H3a2 2 0 0 1-2-2Zm2-.5a.5.5 0 0 0-.5.5v6.5a.5.5 0 0 0 .5.5h6.5a.5.5 0 0 0 .5-.5V3a.5.5 0 0 0-.5-.5ZM14.5 14a.5.5 0 0 0-.5.5V21a.5.5 0 0 0 .5.5H21a.5.5 0 0 0 .5-.5v-6.5a.5.5 0 0 0-.5-.5Z"></path> </svg> <div> <div class="color-fg-default h4">Actions</div> Automate any workflow </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"codespaces","context":"product","tag":"link","label":"codespaces_link_product_navbar"}" href="https://github.com/features/codespaces"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-codespaces color-fg-subtle mr-3"> <path d="M3.5 3.75C3.5 2.784 4.284 2 5.25 2h13.5c.966 0 1.75.784 1.75 1.75v7.5A1.75 1.75 0 0 1 18.75 13H5.25a1.75 1.75 0 0 1-1.75-1.75Zm-2 12c0-.966.784-1.75 1.75-1.75h17.5c.966 0 1.75.784 1.75 1.75v4a1.75 1.75 0 0 1-1.75 1.75H3.25a1.75 1.75 0 0 1-1.75-1.75ZM5.25 3.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h13.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Zm-2 12a.25.25 0 0 0-.25.25v4c0 .138.112.25.25.25h17.5a.25.25 0 0 0 .25-.25v-4a.25.25 0 0 0-.25-.25Z"></path><path d="M10 17.75a.75.75 0 0 1 .75-.75h6.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1-.75-.75Zm-4 0a.75.75 0 0 1 .75-.75h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1-.75-.75Z"></path> </svg> <div> <div class="color-fg-default h4">Codespaces</div> Instant dev environments </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"issues","context":"product","tag":"link","label":"issues_link_product_navbar"}" href="https://github.com/features/issues"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-issue-opened color-fg-subtle mr-3"> <path d="M12 1c6.075 0 11 4.925 11 11s-4.925 11-11 11S1 18.075 1 12 5.925 1 12 1ZM2.5 12a9.5 9.5 0 0 0 9.5 9.5 9.5 9.5 0 0 0 9.5-9.5A9.5 9.5 0 0 0 12 2.5 9.5 9.5 0 0 0 2.5 12Zm9.5 2a2 2 0 1 1-.001-3.999A2 2 0 0 1 12 14Z"></path> </svg> <div> <div class="color-fg-default h4">Issues</div> Plan and track work </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline 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data-view-component="true" class="octicon octicon-code-square color-fg-subtle mr-3"> <path d="M10.3 8.24a.75.75 0 0 1-.04 1.06L7.352 12l2.908 2.7a.75.75 0 1 1-1.02 1.1l-3.5-3.25a.75.75 0 0 1 0-1.1l3.5-3.25a.75.75 0 0 1 1.06.04Zm3.44 1.06a.75.75 0 1 1 1.02-1.1l3.5 3.25a.75.75 0 0 1 0 1.1l-3.5 3.25a.75.75 0 1 1-1.02-1.1l2.908-2.7-2.908-2.7Z"></path><path d="M2 3.75C2 2.784 2.784 2 3.75 2h16.5c.966 0 1.75.784 1.75 1.75v16.5A1.75 1.75 0 0 1 20.25 22H3.75A1.75 1.75 0 0 1 2 20.25Zm1.75-.25a.25.25 0 0 0-.25.25v16.5c0 .138.112.25.25.25h16.5a.25.25 0 0 0 .25-.25V3.75a.25.25 0 0 0-.25-.25Z"></path> </svg> <div> <div class="color-fg-default h4">Code Search</div> Find more, search less </div> </a></li> </ul> </div> </div> <div class="HeaderMenu-column px-lg-4"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="product-explore-heading">Explore</span> <ul class="list-style-none f5" aria-labelledby="product-explore-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"all_features","context":"product","tag":"link","label":"all_features_link_product_navbar"}" href="https://github.com/features"> All features </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"documentation","context":"product","tag":"link","label":"documentation_link_product_navbar"}" href="https://docs.github.com"> Documentation <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"github_skills","context":"product","tag":"link","label":"github_skills_link_product_navbar"}" href="https://skills.github.com"> GitHub Skills <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 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href=\"/cloudflare/quiche/blob/master/quiche.svg\"\u003e\u003cimg src=\"/cloudflare/quiche/raw/master/quiche.svg\" alt=\"quiche\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://crates.io/crates/quiche\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/a213735f8c9606ce430646115debfdc5e577c4d250197932022785e00724fd41/68747470733a2f2f696d672e736869656c64732e696f2f6372617465732f762f7175696368652e737667\" alt=\"crates.io\" data-canonical-src=\"https://img.shields.io/crates/v/quiche.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://docs.rs/quiche\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/8ff897bdfde1e9d47e895089e185de28c686d19173a8f8ac187975cdd8ca0fa7/68747470733a2f2f646f63732e72732f7175696368652f62616467652e737667\" alt=\"docs.rs\" data-canonical-src=\"https://docs.rs/quiche/badge.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://opensource.org/licenses/BSD-2-Clause\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/f519de628557531d3b03543aca76ded29f560d110453cb53a602ee472eb61400/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6963656e73652f636c6f7564666c6172652f7175696368652e737667\" alt=\"license\" data-canonical-src=\"https://img.shields.io/github/license/cloudflare/quiche.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca target=\"_blank\" rel=\"noopener noreferrer nofollow\" href=\"https://camo.githubusercontent.com/77a1a565872b81da745cc893ccb648162b838935a55936078895d4628b388542/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f616374696f6e732f776f726b666c6f772f7374617475732f636c6f7564666c6172652f7175696368652f737461626c652e796d6c3f6272616e63683d6d6173746572\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/77a1a565872b81da745cc893ccb648162b838935a55936078895d4628b388542/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f616374696f6e732f776f726b666c6f772f7374617475732f636c6f7564666c6172652f7175696368652f737461626c652e796d6c3f6272616e63683d6d6173746572\" alt=\"build\" data-canonical-src=\"https://img.shields.io/github/actions/workflow/status/cloudflare/quiche/stable.yml?branch=master\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://docs.quic.tech/quiche/\" rel=\"nofollow\"\u003equiche\u003c/a\u003e is an implementation of the QUIC transport protocol and HTTP/3 as\nspecified by the \u003ca href=\"https://quicwg.org/\" rel=\"nofollow\"\u003eIETF\u003c/a\u003e. It provides a low level API for processing QUIC packets\nand handling connection state. The application is responsible for providing I/O\n(e.g. sockets handling) as well as an event loop with support for timers.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eFor more information on how quiche came about and some insights into its design\nyou can read a \u003ca href=\"https://blog.cloudflare.com/enjoy-a-slice-of-quic-and-rust/\" rel=\"nofollow\"\u003epost\u003c/a\u003e on Cloudflare's blog that goes into some more detail.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eWho uses quiche?\u003c/h2\u003e\u003ca id=\"user-content-who-uses-quiche\" class=\"anchor\" aria-label=\"Permalink: Who uses quiche?\" href=\"#who-uses-quiche\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCloudflare\u003c/h3\u003e\u003ca id=\"user-content-cloudflare\" class=\"anchor\" aria-label=\"Permalink: Cloudflare\" href=\"#cloudflare\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003equiche powers Cloudflare edge network's \u003ca href=\"https://blog.cloudflare.com/http3-the-past-present-and-future/\" rel=\"nofollow\"\u003eHTTP/3 support\u003c/a\u003e. The\n\u003ca href=\"https://cloudflare-quic.com\" rel=\"nofollow\"\u003ecloudflare-quic.com\u003c/a\u003e website can be used for\ntesting and experimentation.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eAndroid\u003c/h3\u003e\u003ca id=\"user-content-android\" class=\"anchor\" aria-label=\"Permalink: Android\" href=\"#android\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAndroid's DNS resolver uses quiche to \u003ca href=\"https://security.googleblog.com/2022/07/dns-over-http3-in-android.html\" rel=\"nofollow\"\u003eimplement DNS over HTTP/3\u003c/a\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003ecurl\u003c/h3\u003e\u003ca id=\"user-content-curl\" class=\"anchor\" aria-label=\"Permalink: curl\" href=\"#curl\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003equiche can be \u003ca href=\"https://github.com/curl/curl/blob/master/docs/HTTP3.md#quiche-version\"\u003eintegrated into curl\u003c/a\u003e to provide support for HTTP/3.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eGetting Started\u003c/h2\u003e\u003ca id=\"user-content-getting-started\" class=\"anchor\" aria-label=\"Permalink: Getting Started\" href=\"#getting-started\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCommand-line apps\u003c/h3\u003e\u003ca id=\"user-content-command-line-apps\" class=\"anchor\" aria-label=\"Permalink: Command-line apps\" href=\"#command-line-apps\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eBefore diving into the quiche API, here are a few examples on how to use the\nquiche tools provided as part of the \u003ca href=\"/cloudflare/quiche/blob/master/apps\"\u003equiche-apps\u003c/a\u003e crate.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eAfter cloning the project according to the command mentioned in the \u003ca href=\"#building\"\u003ebuilding\u003c/a\u003e section, the client can be run as follows:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo run --bin quiche-client -- https://cloudflare-quic.com/\"\u003e\u003cpre\u003e $ cargo run --bin quiche-client -- https://cloudflare-quic.com/\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ewhile the server can be run as follows:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo run --bin quiche-server -- --cert apps/src/bin/cert.crt --key apps/src/bin/cert.key\"\u003e\u003cpre\u003e $ cargo run --bin quiche-server -- --cert apps/src/bin/cert.crt --key apps/src/bin/cert.key\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e(note that the certificate provided is self-signed and should not be used in\nproduction)\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eUse the \u003ccode\u003e--help\u003c/code\u003e command-line flag to get a more detailed description of each\ntool's options.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eConfiguring connections\u003c/h3\u003e\u003ca id=\"user-content-configuring-connections\" class=\"anchor\" aria-label=\"Permalink: Configuring connections\" href=\"#configuring-connections\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe first step in establishing a QUIC connection using quiche is creating a\n\u003ca href=\"https://docs.quic.tech/quiche/struct.Config.html\" rel=\"nofollow\"\u003e\u003ccode\u003eConfig\u003c/code\u003e\u003c/a\u003e object:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"let mut config = quiche::Config::new(quiche::PROTOCOL_VERSION)?;\nconfig.set_application_protos(\u0026amp;[b\u0026quot;example-proto\u0026quot;]);\n\n// Additional configuration specific to application and use case...\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e config = quiche\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003eConfig\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-en\"\u003enew\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003equiche\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-v\"\u003ePROTOCOL_VERSION\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e?\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\nconfig\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eset_application_protos\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e\u003cspan class=\"pl-s\"\u003eb\"example-proto\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e// Additional configuration specific to application and use case...\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ca href=\"https://docs.quic.tech/quiche/struct.Config.html\" rel=\"nofollow\"\u003e\u003ccode\u003eConfig\u003c/code\u003e\u003c/a\u003e object controls important aspects of the QUIC connection such\nas QUIC version, ALPN IDs, flow control, congestion control, idle timeout\nand other properties or features.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eQUIC is a general-purpose transport protocol and there are several\nconfiguration properties where there is no reasonable default value. For\nexample, the permitted number of concurrent streams of any particular type\nis dependent on the application running over QUIC, and other use-case\nspecific concerns.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003equiche defaults several properties to zero, applications most likely need\nto set these to something else to satisfy their needs using the following:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ca href=\"https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_streams_bidi\" rel=\"nofollow\"\u003e\u003ccode\u003eset_initial_max_streams_bidi()\u003c/code\u003e\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_streams_uni\" rel=\"nofollow\"\u003e\u003ccode\u003eset_initial_max_streams_uni()\u003c/code\u003e\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_data\" rel=\"nofollow\"\u003e\u003ccode\u003eset_initial_max_data()\u003c/code\u003e\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_stream_data_bidi_local\" rel=\"nofollow\"\u003e\u003ccode\u003eset_initial_max_stream_data_bidi_local()\u003c/code\u003e\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_stream_data_bidi_remote\" rel=\"nofollow\"\u003e\u003ccode\u003eset_initial_max_stream_data_bidi_remote()\u003c/code\u003e\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_stream_data_uni\" rel=\"nofollow\"\u003e\u003ccode\u003eset_initial_max_stream_data_uni()\u003c/code\u003e\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://docs.quic.tech/quiche/struct.Config.html\" rel=\"nofollow\"\u003e\u003ccode\u003eConfig\u003c/code\u003e\u003c/a\u003e also holds TLS configuration. This can be changed by mutators on\nthe an existing object, or by constructing a TLS context manually and\ncreating a configuration using \u003ca href=\"https://docs.quic.tech/quiche/struct.Config.html#method.with_boring_ssl_ctx_builder\" rel=\"nofollow\"\u003e\u003ccode\u003ewith_boring_ssl_ctx_builder()\u003c/code\u003e\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eA configuration object can be shared among multiple connections.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eConnection setup\u003c/h3\u003e\u003ca id=\"user-content-connection-setup\" class=\"anchor\" aria-label=\"Permalink: Connection setup\" href=\"#connection-setup\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eOn the client-side the \u003ca href=\"https://docs.quic.tech/quiche/fn.connect.html\" rel=\"nofollow\"\u003e\u003ccode\u003econnect()\u003c/code\u003e\u003c/a\u003e utility function can be used to create\na new connection, while \u003ca href=\"https://docs.quic.tech/quiche/fn.accept.html\" rel=\"nofollow\"\u003e\u003ccode\u003eaccept()\u003c/code\u003e\u003c/a\u003e is for servers:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"// Client connection.\nlet conn = quiche::connect(Some(\u0026amp;server_name), \u0026amp;scid, local, peer, \u0026amp;mut config)?;\n\n// Server connection.\nlet conn = quiche::accept(\u0026amp;scid, None, local, peer, \u0026amp;mut config)?;\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e// Client connection.\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e conn = quiche\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-en\"\u003econnect\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eSome\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003eserver_name\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003escid\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e local\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e peer\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e config\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e?\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e// Server connection.\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e conn = quiche\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eaccept\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003escid\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eNone\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e local\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e peer\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e config\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e?\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eHandling incoming packets\u003c/h3\u003e\u003ca id=\"user-content-handling-incoming-packets\" class=\"anchor\" aria-label=\"Permalink: Handling incoming packets\" href=\"#handling-incoming-packets\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eUsing the connection's \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.recv\" rel=\"nofollow\"\u003e\u003ccode\u003erecv()\u003c/code\u003e\u003c/a\u003e method the application can process\nincoming packets that belong to that connection from the network:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"let to = socket.local_addr().unwrap();\n\nloop {\n let (read, from) = socket.recv_from(\u0026amp;mut buf).unwrap();\n\n let recv_info = quiche::RecvInfo { from, to };\n\n let read = match conn.recv(\u0026amp;mut buf[..read], recv_info) {\n Ok(v) =\u0026gt; v,\n\n Err(e) =\u0026gt; {\n // An error occurred, handle it.\n break;\n },\n };\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e to = socket\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003elocal_addr\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eunwrap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n\u003cspan class=\"pl-k\"\u003eloop\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003eread\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e from\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e = socket\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003erecv_from\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e buf\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eunwrap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e recv_info = quiche\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003eRecvInfo\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e from\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e to \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e read = \u003cspan class=\"pl-k\"\u003ematch\u003c/span\u003e conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003erecv\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e buf\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e..read\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e recv_info\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-v\"\u003eOk\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ev\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; v\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n\n \u003cspan class=\"pl-v\"\u003eErr\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ee\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// An error occurred, handle it.\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ebreak\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eGenerating outgoing packets\u003c/h3\u003e\u003ca id=\"user-content-generating-outgoing-packets\" class=\"anchor\" aria-label=\"Permalink: Generating outgoing packets\" href=\"#generating-outgoing-packets\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eOutgoing packet are generated using the connection's \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.send\" rel=\"nofollow\"\u003e\u003ccode\u003esend()\u003c/code\u003e\u003c/a\u003e method\ninstead:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"loop {\n let (write, send_info) = match conn.send(\u0026amp;mut out) {\n Ok(v) =\u0026gt; v,\n\n Err(quiche::Error::Done) =\u0026gt; {\n // Done writing.\n break;\n },\n\n Err(e) =\u0026gt; {\n // An error occurred, handle it.\n break;\n },\n };\n\n socket.send_to(\u0026amp;out[..write], \u0026amp;send_info.to).unwrap();\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eloop\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ewrite\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e send_info\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e = \u003cspan class=\"pl-k\"\u003ematch\u003c/span\u003e conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003esend\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e out\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-v\"\u003eOk\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ev\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; v\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n\n \u003cspan class=\"pl-v\"\u003eErr\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003equiche\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003eError\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-v\"\u003eDone\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// Done writing.\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ebreak\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n\n \u003cspan class=\"pl-v\"\u003eErr\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ee\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// An error occurred, handle it.\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ebreak\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n socket\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003esend_to\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003eout\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e..write\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003esend_info\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eto\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eunwrap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eWhen packets are sent, the application is responsible for maintaining a\ntimer to react to time-based connection events. The timer expiration can be\nobtained using the connection's \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.timeout\" rel=\"nofollow\"\u003e\u003ccode\u003etimeout()\u003c/code\u003e\u003c/a\u003e method.\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"let timeout = conn.timeout();\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e timeout = conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003etimeout\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe application is responsible for providing a timer implementation, which\ncan be specific to the operating system or networking framework used. When\na timer expires, the connection's \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.on_timeout\" rel=\"nofollow\"\u003e\u003ccode\u003eon_timeout()\u003c/code\u003e\u003c/a\u003e method should be called,\nafter which additional packets might need to be sent on the network:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"// Timeout expired, handle it.\nconn.on_timeout();\n\n// Send more packets as needed after timeout.\nloop {\n let (write, send_info) = match conn.send(\u0026amp;mut out) {\n Ok(v) =\u0026gt; v,\n\n Err(quiche::Error::Done) =\u0026gt; {\n // Done writing.\n break;\n },\n\n Err(e) =\u0026gt; {\n // An error occurred, handle it.\n break;\n },\n };\n\n socket.send_to(\u0026amp;out[..write], \u0026amp;send_info.to).unwrap();\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e// Timeout expired, handle it.\u003c/span\u003e\nconn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eon_timeout\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e// Send more packets as needed after timeout.\u003c/span\u003e\n\u003cspan class=\"pl-k\"\u003eloop\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ewrite\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e send_info\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e = \u003cspan class=\"pl-k\"\u003ematch\u003c/span\u003e conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003esend\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e out\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-v\"\u003eOk\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ev\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; v\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n\n \u003cspan class=\"pl-v\"\u003eErr\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003equiche\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-smi\"\u003eError\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e::\u003c/span\u003e\u003cspan class=\"pl-v\"\u003eDone\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// Done writing.\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ebreak\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n\n \u003cspan class=\"pl-v\"\u003eErr\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003ee\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e =\u0026gt; \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// An error occurred, handle it.\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ebreak\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\n socket\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003esend_to\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003eout\u003cspan class=\"pl-kos\"\u003e[\u003c/span\u003e..write\u003cspan class=\"pl-kos\"\u003e]\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003esend_info\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003eto\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eunwrap\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch4 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003ePacing\u003c/h4\u003e\u003ca id=\"user-content-pacing\" class=\"anchor\" aria-label=\"Permalink: Pacing\" href=\"#pacing\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIt is recommended that applications \u003ca href=\"https://datatracker.ietf.org/doc/html/rfc9002#section-7.7\" rel=\"nofollow\"\u003epace\u003c/a\u003e sending of outgoing packets to\navoid creating packet bursts that could cause short-term congestion and\nlosses in the network.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003equiche exposes pacing hints for outgoing packets through the [\u003ccode\u003eat\u003c/code\u003e] field\nof the [\u003ccode\u003eSendInfo\u003c/code\u003e] structure that is returned by the \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.send\" rel=\"nofollow\"\u003e\u003ccode\u003esend()\u003c/code\u003e\u003c/a\u003e method.\nThis field represents the time when a specific packet should be sent into\nthe network.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eApplications can use these hints by artificially delaying the sending of\npackets through platform-specific mechanisms (such as the \u003ca href=\"https://man7.org/linux/man-pages/man8/tc-etf.8.html\" rel=\"nofollow\"\u003e\u003ccode\u003eSO_TXTIME\u003c/code\u003e\u003c/a\u003e\nsocket option on Linux), or custom methods (for example by using user-space\ntimers).\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eSending and receiving stream data\u003c/h3\u003e\u003ca id=\"user-content-sending-and-receiving-stream-data\" class=\"anchor\" aria-label=\"Permalink: Sending and receiving stream data\" href=\"#sending-and-receiving-stream-data\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAfter some back and forth, the connection will complete its handshake and\nwill be ready for sending or receiving application data.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eData can be sent on a stream by using the \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.stream_send\" rel=\"nofollow\"\u003e\u003ccode\u003estream_send()\u003c/code\u003e\u003c/a\u003e method:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"if conn.is_established() {\n // Handshake completed, send some data on stream 0.\n conn.stream_send(0, b\u0026quot;hello\u0026quot;, true)?;\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eis_established\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// Handshake completed, send some data on stream 0.\u003c/span\u003e\n conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003estream_send\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-c1\"\u003e0\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-s\"\u003eb\"hello\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003etrue\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e?\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe application can check whether there are any readable streams by using\nthe connection's \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.readable\" rel=\"nofollow\"\u003e\u003ccode\u003ereadable()\u003c/code\u003e\u003c/a\u003e method, which returns an iterator over all\nthe streams that have outstanding data to read.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ca href=\"https://docs.quic.tech/quiche/struct.Connection.html#method.stream_recv\" rel=\"nofollow\"\u003e\u003ccode\u003estream_recv()\u003c/code\u003e\u003c/a\u003e method can then be used to retrieve the application\ndata from the readable stream:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-rust notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"if conn.is_established() {\n // Iterate over readable streams.\n for stream_id in conn.readable() {\n // Stream is readable, read until there's no more data.\n while let Ok((read, fin)) = conn.stream_recv(stream_id, \u0026amp;mut buf) {\n println!(\u0026quot;Got {} bytes on stream {}\u0026quot;, read, stream_id);\n }\n }\n}\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eif\u003c/span\u003e conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003eis_established\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// Iterate over readable streams.\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003efor\u003c/span\u003e stream_id \u003cspan class=\"pl-k\"\u003ein\u003c/span\u003e conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003ereadable\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-c\"\u003e// Stream is readable, read until there's no more data.\u003c/span\u003e\n \u003cspan class=\"pl-k\"\u003ewhile\u003c/span\u003e \u003cspan class=\"pl-k\"\u003elet\u003c/span\u003e \u003cspan class=\"pl-v\"\u003eOk\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003eread\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e fin\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e = conn\u003cspan class=\"pl-kos\"\u003e.\u003c/span\u003e\u003cspan class=\"pl-en\"\u003estream_recv\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003estream_id\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e \u003cspan class=\"pl-c1\"\u003e\u0026amp;\u003c/span\u003e\u003cspan class=\"pl-k\"\u003emut\u003c/span\u003e buf\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e \u003cspan class=\"pl-kos\"\u003e{\u003c/span\u003e\n \u003cspan class=\"pl-en\"\u003eprintln\u003c/span\u003e\u003cspan class=\"pl-en\"\u003e!\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e(\u003c/span\u003e\u003cspan class=\"pl-s\"\u003e\"Got {} bytes on stream {}\"\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e read\u003cspan class=\"pl-kos\"\u003e,\u003c/span\u003e stream_id\u003cspan class=\"pl-kos\"\u003e)\u003c/span\u003e\u003cspan class=\"pl-kos\"\u003e;\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n \u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\n\u003cspan class=\"pl-kos\"\u003e}\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eHTTP/3\u003c/h3\u003e\u003ca id=\"user-content-http3\" class=\"anchor\" aria-label=\"Permalink: HTTP/3\" href=\"#http3\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe quiche \u003ca href=\"https://docs.quic.tech/quiche/h3/index.html\" rel=\"nofollow\"\u003eHTTP/3 module\u003c/a\u003e provides a high level API for sending and\nreceiving HTTP requests and responses on top of the QUIC transport protocol.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eHave a look at the [quiche/examples/] directory for more complete examples on\nhow to use the quiche API, including examples on how to use quiche in C/C++\napplications (see below for more information).\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCalling quiche from C/C++\u003c/h2\u003e\u003ca id=\"user-content-calling-quiche-from-cc\" class=\"anchor\" aria-label=\"Permalink: Calling quiche from C/C++\" href=\"#calling-quiche-from-cc\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003equiche exposes a \u003ca href=\"https://github.com/cloudflare/quiche/blob/master/quiche/include/quiche.h\"\u003ethin C API\u003c/a\u003e on top of the Rust API that can be used to more\neasily integrate quiche into C/C++ applications (as well as in other languages\nthat allow calling C APIs via some form of FFI). The C API follows the same\ndesign of the Rust one, modulo the constraints imposed by the C language itself.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eWhen running \u003ccode\u003ecargo build\u003c/code\u003e, a static library called \u003ccode\u003elibquiche.a\u003c/code\u003e will be\nbuilt automatically alongside the Rust one. This is fully stand-alone and can\nbe linked directly into C/C++ applications.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eNote that in order to enable the FFI API, the \u003ccode\u003effi\u003c/code\u003e feature must be enabled (it\nis disabled by default), by passing \u003ccode\u003e--features ffi\u003c/code\u003e to \u003ccode\u003ecargo\u003c/code\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eBuilding\u003c/h2\u003e\u003ca id=\"user-content-building\" class=\"anchor\" aria-label=\"Permalink: Building\" href=\"#building\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003equiche requires Rust 1.81 or later to build. The latest stable Rust release can\nbe installed using \u003ca href=\"https://rustup.rs/\" rel=\"nofollow\"\u003erustup\u003c/a\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eOnce the Rust build environment is setup, the quiche source code can be fetched\nusing git:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ git clone --recursive https://github.com/cloudflare/quiche\"\u003e\u003cpre\u003e $ git clone --recursive https://github.com/cloudflare/quiche\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eand then built using cargo:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo build --examples\"\u003e\u003cpre\u003e $ cargo build --examples\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ecargo can also be used to run the testsuite:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo test\"\u003e\u003cpre\u003e $ cargo \u003cspan class=\"pl-c1\"\u003etest\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eNote that \u003ca href=\"https://boringssl.googlesource.com/boringssl/\" rel=\"nofollow\"\u003eBoringSSL\u003c/a\u003e, which is used to implement QUIC's cryptographic handshake\nbased on TLS, needs to be built and linked to quiche. This is done automatically\nwhen building quiche using cargo, but requires the \u003ccode\u003ecmake\u003c/code\u003e command to be\navailable during the build process. On Windows you also need\n\u003ca href=\"https://www.nasm.us/\" rel=\"nofollow\"\u003eNASM\u003c/a\u003e. The \u003ca href=\"https://github.com/google/boringssl/blob/master/BUILDING.md\"\u003eofficial BoringSSL\ndocumentation\u003c/a\u003e has\nmore details.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eIn alternative you can use your own custom build of BoringSSL by configuring\nthe BoringSSL directory with the \u003ccode\u003eQUICHE_BSSL_PATH\u003c/code\u003e environment variable:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ QUICHE_BSSL_PATH=\u0026quot;/path/to/boringssl\u0026quot; cargo build --examples\"\u003e\u003cpre\u003e $ QUICHE_BSSL_PATH=\u003cspan class=\"pl-s\"\u003e\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003e/path/to/boringssl\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003e\u003c/span\u003e cargo build --examples\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eAlternatively you can use \u003ca href=\"https://github.com/quictls/openssl\"\u003eOpenSSL/quictls\u003c/a\u003e. To enable quiche to use this vendor\nthe \u003ccode\u003eopenssl\u003c/code\u003e feature can be added to the \u003ccode\u003e--feature\u003c/code\u003e list. Be aware that\n\u003ccode\u003e0-RTT\u003c/code\u003e is not supported if this vendor is used.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eBuilding for Android\u003c/h3\u003e\u003ca id=\"user-content-building-for-android\" class=\"anchor\" aria-label=\"Permalink: Building for Android\" href=\"#building-for-android\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eBuilding quiche for Android (NDK version 19 or higher, 21 recommended), can be\ndone using \u003ca href=\"https://docs.rs/crate/cargo-ndk\" rel=\"nofollow\"\u003ecargo-ndk\u003c/a\u003e (v2.0 or later).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eFirst the \u003ca href=\"https://developer.android.com/ndk\" rel=\"nofollow\"\u003eAndroid NDK\u003c/a\u003e needs to be installed, either using Android Studio or\ndirectly, and the \u003ccode\u003eANDROID_NDK_HOME\u003c/code\u003e environment variable needs to be set to the\nNDK installation path, e.g.:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ export ANDROID_NDK_HOME=/usr/local/share/android-ndk\"\u003e\u003cpre\u003e $ \u003cspan class=\"pl-k\"\u003eexport\u003c/span\u003e ANDROID_NDK_HOME=/usr/local/share/android-ndk\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThen the Rust toolchain for the Android architectures needed can be installed as\nfollows:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ rustup target add aarch64-linux-android armv7-linux-androideabi i686-linux-android x86_64-linux-android\"\u003e\u003cpre\u003e $ rustup target add aarch64-linux-android armv7-linux-androideabi i686-linux-android x86_64-linux-android\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eNote that the minimum API level is 21 for all target architectures.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://docs.rs/crate/cargo-ndk\" rel=\"nofollow\"\u003ecargo-ndk\u003c/a\u003e (v2.0 or later) also needs to be installed:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo install cargo-ndk\"\u003e\u003cpre\u003e $ cargo install cargo-ndk\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eFinally the quiche library can be built using the following procedure. Note that\nthe \u003ccode\u003e-t \u0026lt;architecture\u0026gt;\u003c/code\u003e and \u003ccode\u003e-p \u0026lt;NDK version\u0026gt;\u003c/code\u003e options are mandatory.\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo ndk -t arm64-v8a -p 21 -- build --features ffi\"\u003e\u003cpre\u003e $ cargo ndk -t arm64-v8a -p 21 -- build --features ffi\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eSee \u003ca href=\"https://github.com/cloudflare/quiche/blob/master/tools/android/build_android_ndk19.sh\"\u003ebuild_android_ndk19.sh\u003c/a\u003e for more information.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eBuilding for iOS\u003c/h3\u003e\u003ca id=\"user-content-building-for-ios\" class=\"anchor\" aria-label=\"Permalink: Building for iOS\" href=\"#building-for-ios\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo build quiche for iOS, you need the following:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eInstall Xcode command-line tools. You can install them with Xcode or with the\nfollowing command:\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ xcode-select --install\"\u003e\u003cpre\u003e $ xcode-select --install\u003c/pre\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eInstall the Rust toolchain for iOS architectures:\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ rustup target add aarch64-apple-ios x86_64-apple-ios\"\u003e\u003cpre\u003e $ rustup target add aarch64-apple-ios x86_64-apple-ios\u003c/pre\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eInstall \u003ccode\u003ecargo-lipo\u003c/code\u003e:\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo install cargo-lipo\"\u003e\u003cpre\u003e $ cargo install cargo-lipo\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo build libquiche, run the following command:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo lipo --features ffi\"\u003e\u003cpre\u003e $ cargo lipo --features ffi\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eor\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ cargo lipo --features ffi --release\"\u003e\u003cpre\u003e $ cargo lipo --features ffi --release\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eiOS build is tested in Xcode 10.1 and Xcode 11.2.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eBuilding Docker images\u003c/h3\u003e\u003ca id=\"user-content-building-docker-images\" class=\"anchor\" aria-label=\"Permalink: Building Docker images\" href=\"#building-docker-images\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIn order to build the Docker images, simply run the following command:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\" $ make docker-build\"\u003e\u003cpre\u003e $ make docker-build\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can find the quiche Docker images on the following Docker Hub repositories:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003ca href=\"https://hub.docker.com/repository/docker/cloudflare/quiche\" rel=\"nofollow\"\u003ecloudflare/quiche\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://hub.docker.com/repository/docker/cloudflare/quiche-qns\" rel=\"nofollow\"\u003ecloudflare/quiche-qns\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003eThe \u003ccode\u003elatest\u003c/code\u003e tag will be updated whenever quiche master branch updates.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ecloudflare/quiche\u003c/strong\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eProvides a server and client installed in /usr/local/bin.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ecloudflare/quiche-qns\u003c/strong\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eProvides the script to test quiche within the \u003ca href=\"https://github.com/marten-seemann/quic-interop-runner\"\u003equic-interop-runner\u003c/a\u003e.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eCopyright\u003c/h2\u003e\u003ca id=\"user-content-copyright\" class=\"anchor\" aria-label=\"Permalink: Copyright\" href=\"#copyright\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eCopyright (C) 2018-2019, Cloudflare, Inc.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eSee \u003ca href=\"https://github.com/cloudflare/quiche/tree/master/COPYING\"\u003eCOPYING\u003c/a\u003e for the license.\u003c/p\u003e\n\u003c/article\u003e","loaded":true,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":[{"level":2,"text":"Who uses quiche?","anchor":"who-uses-quiche","htmlText":"Who uses quiche?"},{"level":3,"text":"Cloudflare","anchor":"cloudflare","htmlText":"Cloudflare"},{"level":3,"text":"Android","anchor":"android","htmlText":"Android"},{"level":3,"text":"curl","anchor":"curl","htmlText":"curl"},{"level":2,"text":"Getting Started","anchor":"getting-started","htmlText":"Getting Started"},{"level":3,"text":"Command-line apps","anchor":"command-line-apps","htmlText":"Command-line apps"},{"level":3,"text":"Configuring connections","anchor":"configuring-connections","htmlText":"Configuring connections"},{"level":3,"text":"Connection setup","anchor":"connection-setup","htmlText":"Connection setup"},{"level":3,"text":"Handling incoming packets","anchor":"handling-incoming-packets","htmlText":"Handling incoming packets"},{"level":3,"text":"Generating outgoing packets","anchor":"generating-outgoing-packets","htmlText":"Generating outgoing packets"},{"level":4,"text":"Pacing","anchor":"pacing","htmlText":"Pacing"},{"level":3,"text":"Sending and receiving stream data","anchor":"sending-and-receiving-stream-data","htmlText":"Sending and receiving stream data"},{"level":3,"text":"HTTP/3","anchor":"http3","htmlText":"HTTP/3"},{"level":2,"text":"Calling quiche from C/C++","anchor":"calling-quiche-from-cc","htmlText":"Calling quiche from C/C++"},{"level":2,"text":"Building","anchor":"building","htmlText":"Building"},{"level":3,"text":"Building for Android","anchor":"building-for-android","htmlText":"Building for Android"},{"level":3,"text":"Building for iOS","anchor":"building-for-ios","htmlText":"Building for iOS"},{"level":3,"text":"Building Docker images","anchor":"building-docker-images","htmlText":"Building Docker images"},{"level":2,"text":"Copyright","anchor":"copyright","htmlText":"Copyright"}],"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2Fcloudflare%2Fquiche"}},{"displayName":"CODE_OF_CONDUCT.md","repoName":".github","refName":"master","path":"CODE_OF_CONDUCT.md","preferredFileType":"code_of_conduct","tabName":"Code of 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data-variant="default" aria-describedby=":Rr5ab:-loading-announcement"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="text" class="prc-Button-Label-pTQ3x">Go to file</span></span></button></div><div class="react-directory-add-file-icon"></div><div class="react-directory-remove-file-icon"></div></div><button type="button" aria-haspopup="true" aria-expanded="false" tabindex="0" class="prc-Button-ButtonBase-c50BI" data-loading="false" data-size="medium" data-variant="primary" aria-describedby=":R55ab:-loading-announcement" id=":R55ab:"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-code hide-sm" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m11.28 3.22 4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L13.94 8l-3.72-3.72a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215Zm-6.56 0a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042L2.06 8l3.72 3.72a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L.47 8.53a.75.75 0 0 1 0-1.06Z"></path></svg></span><span data-component="text" class="prc-Button-Label-pTQ3x">Code</span><span data-component="trailingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-triangle-down" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m4.427 7.427 3.396 3.396a.25.25 0 0 0 .354 0l3.396-3.396A.25.25 0 0 0 11.396 7H4.604a.25.25 0 0 0-.177.427Z"></path></svg></span></span></button><div class="Box-sc-g0xbh4-0 izFOf"><button data-component="IconButton" type="button" aria-label="Open more actions menu" aria-haspopup="true" aria-expanded="false" tabindex="0" class="prc-Button-ButtonBase-c50BI prc-Button-IconButton-szpyj" data-loading="false" data-no-visuals="true" data-size="medium" data-variant="default" aria-describedby=":R75ab:-loading-announcement" id=":R75ab:"><svg aria-hidden="true" focusable="false" class="octicon octicon-kebab-horizontal" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M8 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3ZM1.5 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Zm13 0a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path></svg></button></div></div></div><div class="Box-sc-g0xbh4-0 vIPPs"><div data-hpc="true"><button hidden="" data-testid="focus-next-element-button" data-hotkey="j"></button><button hidden="" data-testid="focus-previous-element-button" data-hotkey="k"></button><h2 class="sr-only ScreenReaderHeading-module__userSelectNone--vW4Cq prc-Heading-Heading-6CmGO" data-testid="screen-reader-heading" id="folders-and-files">Folders and files</h2><table aria-labelledby="folders-and-files" class="Box-sc-g0xbh4-0 fdROMU"><thead class="Box-sc-g0xbh4-0 jGKpsv"><tr class="Box-sc-g0xbh4-0 jdgHnn"><th colSpan="2" class="Box-sc-g0xbh4-0 bQivRW"><span class="text-bold">Name</span></th><th colSpan="1" class="Box-sc-g0xbh4-0 ldkMIO"><span class="text-bold">Name</span></th><th class="hide-sm"><div title="Last commit message" class="Truncate__StyledTruncate-sc-23o1d2-0 liVpTx width-fit"><span class="text-bold">Last commit message</span></div></th><th colSpan="1" class="Box-sc-g0xbh4-0 jMbWeI"><div title="Last commit date" class="Truncate__StyledTruncate-sc-23o1d2-0 liVpTx width-fit"><span class="text-bold">Last commit date</span></div></th></tr></thead><tbody><tr class="Box-sc-g0xbh4-0 gpqjiB"><td colSpan="3" class="bgColor-muted p-1 rounded-top-2"><div class="Box-sc-g0xbh4-0 dzCJzi"><h2 class="sr-only ScreenReaderHeading-module__userSelectNone--vW4Cq prc-Heading-Heading-6CmGO" data-testid="screen-reader-heading">Latest commit</h2><div style="width:120px" class="Skeleton Skeleton--text" data-testid="loading"> </div><div class="d-flex flex-shrink-0 gap-2"><div data-testid="latest-commit-details" class="d-none d-sm-flex flex-items-center"></div><div class="d-flex gap-2"><h2 class="sr-only ScreenReaderHeading-module__userSelectNone--vW4Cq prc-Heading-Heading-6CmGO" data-testid="screen-reader-heading">History</h2><a href="/cloudflare/quiche/commits/master/" class="prc-Button-ButtonBase-c50BI d-none d-lg-flex LinkButton-module__code-view-link-button--xvCGA flex-items-center fgColor-default" data-loading="false" data-size="small" data-variant="invisible" aria-describedby=":Raqj8pab:-loading-announcement"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-history" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m.427 1.927 1.215 1.215a8.002 8.002 0 1 1-1.6 5.685.75.75 0 1 1 1.493-.154 6.5 6.5 0 1 0 1.18-4.458l1.358 1.358A.25.25 0 0 1 3.896 6H.25A.25.25 0 0 1 0 5.75V2.104a.25.25 0 0 1 .427-.177ZM7.75 4a.75.75 0 0 1 .75.75v2.992l2.028.812a.75.75 0 0 1-.557 1.392l-2.5-1A.751.751 0 0 1 7 8.25v-3.5A.75.75 0 0 1 7.75 4Z"></path></svg></span><span data-component="text" class="prc-Button-Label-pTQ3x"><span class="fgColor-default">2,034 Commits</span></span></span></a><div class="d-sm-none"></div><div class="d-flex d-lg-none"><span role="tooltip" aria-label="2,034 Commits" id="history-icon-button-tooltip" class="Tooltip__TooltipBase-sc-17tf59c-0 hWlpPn tooltipped-n"><a href="/cloudflare/quiche/commits/master/" class="prc-Button-ButtonBase-c50BI LinkButton-module__code-view-link-button--xvCGA flex-items-center fgColor-default" data-loading="false" data-size="small" data-variant="invisible" aria-describedby=":R1iqj8pab:-loading-announcement history-icon-button-tooltip"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-HKbr-"><span data-component="leadingVisual" class="prc-Button-Visual-2epfX prc-Button-VisualWrap-Db-eB"><svg aria-hidden="true" focusable="false" class="octicon octicon-history" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m.427 1.927 1.215 1.215a8.002 8.002 0 1 1-1.6 5.685.75.75 0 1 1 1.493-.154 6.5 6.5 0 1 0 1.18-4.458l1.358 1.358A.25.25 0 0 1 3.896 6H.25A.25.25 0 0 1 0 5.75V2.104a.25.25 0 0 1 .427-.177ZM7.75 4a.75.75 0 0 1 .75.75v2.992l2.028.812a.75.75 0 0 1-.557 1.392l-2.5-1A.751.751 0 0 1 7 8.25v-3.5A.75.75 0 0 1 7.75 4Z"></path></svg></span></span></a></span></div></div></div></div></td></tr><tr class="react-directory-row undefined" id="folder-row-0"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".github" aria-label=".github, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/.github">.github</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".github" aria-label=".github, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/.github">.github</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-1"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="apps" aria-label="apps, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/apps">apps</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="apps" aria-label="apps, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/apps">apps</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-2"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="buffer-pool" aria-label="buffer-pool, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/buffer-pool">buffer-pool</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="buffer-pool" aria-label="buffer-pool, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/buffer-pool">buffer-pool</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-3"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="datagram-socket" aria-label="datagram-socket, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/datagram-socket">datagram-socket</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="datagram-socket" aria-label="datagram-socket, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/datagram-socket">datagram-socket</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-4"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="fuzz" aria-label="fuzz, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/fuzz">fuzz</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="fuzz" aria-label="fuzz, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/fuzz">fuzz</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-5"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="h3i" aria-label="h3i, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/h3i">h3i</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="h3i" aria-label="h3i, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/h3i">h3i</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-6"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="octets" aria-label="octets, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/octets">octets</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="octets" aria-label="octets, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/octets">octets</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-7"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="qlog" aria-label="qlog, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/qlog">qlog</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="qlog" aria-label="qlog, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/qlog">qlog</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-8"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="quiche" aria-label="quiche, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/quiche">quiche</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="quiche" aria-label="quiche, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/quiche">quiche</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row undefined" id="folder-row-9"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="task-killswitch" aria-label="task-killswitch, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/task-killswitch">task-killswitch</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="task-killswitch" aria-label="task-killswitch, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/task-killswitch">task-killswitch</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-10"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="tokio-quiche" aria-label="tokio-quiche, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/tokio-quiche">tokio-quiche</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="tokio-quiche" aria-label="tokio-quiche, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/tokio-quiche">tokio-quiche</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-11"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="tools" aria-label="tools, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/tools">tools</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file-directory-fill icon-directory" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M1.75 1A1.75 1.75 0 0 0 0 2.75v10.5C0 14.216.784 15 1.75 15h12.5A1.75 1.75 0 0 0 16 13.25v-8.5A1.75 1.75 0 0 0 14.25 3H7.5a.25.25 0 0 1-.2-.1l-.9-1.2C6.07 1.26 5.55 1 5 1H1.75Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="tools" aria-label="tools, (Directory)" class="Link--primary" href="/cloudflare/quiche/tree/master/tools">tools</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-12"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitignore" aria-label=".gitignore, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.gitignore">.gitignore</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitignore" aria-label=".gitignore, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.gitignore">.gitignore</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-13"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitlab-ci.yml" aria-label=".gitlab-ci.yml, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.gitlab-ci.yml">.gitlab-ci.yml</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitlab-ci.yml" aria-label=".gitlab-ci.yml, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.gitlab-ci.yml">.gitlab-ci.yml</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-14"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitmodules" aria-label=".gitmodules, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.gitmodules">.gitmodules</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".gitmodules" aria-label=".gitmodules, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.gitmodules">.gitmodules</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-15"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".semgrepignore" aria-label=".semgrepignore, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.semgrepignore">.semgrepignore</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title=".semgrepignore" aria-label=".semgrepignore, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/.semgrepignore">.semgrepignore</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-16"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="CODEOWNERS" aria-label="CODEOWNERS, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/CODEOWNERS">CODEOWNERS</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="CODEOWNERS" aria-label="CODEOWNERS, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/CODEOWNERS">CODEOWNERS</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr 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viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="Makefile" aria-label="Makefile, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/Makefile">Makefile</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 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class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="README.md" aria-label="README.md, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/README.md">README.md</a></div></div></div></div></td><td 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class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-22"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div 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16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="clippy.toml" aria-label="clippy.toml, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/clippy.toml">clippy.toml</a></div></div></div></div></td><td class="react-directory-row-name-cell-large-screen" colSpan="1"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2 1.75C2 .784 2.784 0 3.75 0h6.586c.464 0 .909.184 1.237.513l2.914 2.914c.329.328.513.773.513 1.237v9.586A1.75 1.75 0 0 1 13.25 16h-9.5A1.75 1.75 0 0 1 2 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h9.5a.25.25 0 0 0 .25-.25V6h-2.75A1.75 1.75 0 0 1 9 4.25V1.5Zm6.75.062V4.25c0 .138.112.25.25.25h2.688l-.011-.013-2.914-2.914-.013-.011Z"></path></svg><div class="overflow-hidden"><div class="react-directory-filename-cell"><div class="react-directory-truncate"><a title="clippy.toml" aria-label="clippy.toml, (File)" class="Link--primary" href="/cloudflare/quiche/blob/master/clippy.toml">clippy.toml</a></div></div></div></div></td><td class="react-directory-row-commit-cell"><div class="Skeleton Skeleton--text"> </div></td><td><div class="Skeleton Skeleton--text"> </div></td></tr><tr class="react-directory-row truncate-for-mobile" id="folder-row-24"><td class="react-directory-row-name-cell-small-screen" colSpan="2"><div class="react-directory-filename-column"><svg aria-hidden="true" focusable="false" class="octicon octicon-file color-fg-muted" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" 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data-canonical-src="https://img.shields.io/github/license/cloudflare/quiche.svg" style="max-width: 100%;"></a> <a target="_blank" rel="noopener noreferrer nofollow" href="https://camo.githubusercontent.com/77a1a565872b81da745cc893ccb648162b838935a55936078895d4628b388542/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f616374696f6e732f776f726b666c6f772f7374617475732f636c6f7564666c6172652f7175696368652f737461626c652e796d6c3f6272616e63683d6d6173746572"><img src="https://camo.githubusercontent.com/77a1a565872b81da745cc893ccb648162b838935a55936078895d4628b388542/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f616374696f6e732f776f726b666c6f772f7374617475732f636c6f7564666c6172652f7175696368652f737461626c652e796d6c3f6272616e63683d6d6173746572" alt="build" data-canonical-src="https://img.shields.io/github/actions/workflow/status/cloudflare/quiche/stable.yml?branch=master" style="max-width: 100%;"></a></p> <p dir="auto"><a href="https://docs.quic.tech/quiche/" rel="nofollow">quiche</a> is an implementation of the QUIC transport protocol and HTTP/3 as specified by the <a href="https://quicwg.org/" rel="nofollow">IETF</a>. It provides a low level API for processing QUIC packets and handling connection state. The application is responsible for providing I/O (e.g. sockets handling) as well as an event loop with support for timers.</p> <p dir="auto">For more information on how quiche came about and some insights into its design you can read a <a href="https://blog.cloudflare.com/enjoy-a-slice-of-quic-and-rust/" rel="nofollow">post</a> on Cloudflare's blog that goes into some more detail.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Who uses quiche?</h2><a id="user-content-who-uses-quiche" class="anchor" aria-label="Permalink: Who uses quiche?" href="#who-uses-quiche"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Cloudflare</h3><a id="user-content-cloudflare" class="anchor" aria-label="Permalink: Cloudflare" href="#cloudflare"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">quiche powers Cloudflare edge network's <a href="https://blog.cloudflare.com/http3-the-past-present-and-future/" rel="nofollow">HTTP/3 support</a>. The <a href="https://cloudflare-quic.com" rel="nofollow">cloudflare-quic.com</a> website can be used for testing and experimentation.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Android</h3><a id="user-content-android" class="anchor" aria-label="Permalink: Android" href="#android"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Android's DNS resolver uses quiche to <a href="https://security.googleblog.com/2022/07/dns-over-http3-in-android.html" rel="nofollow">implement DNS over HTTP/3</a>.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">curl</h3><a id="user-content-curl" class="anchor" aria-label="Permalink: curl" href="#curl"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">quiche can be <a href="https://github.com/curl/curl/blob/master/docs/HTTP3.md#quiche-version">integrated into curl</a> to provide support for HTTP/3.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Getting Started</h2><a id="user-content-getting-started" class="anchor" aria-label="Permalink: Getting Started" href="#getting-started"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Command-line apps</h3><a id="user-content-command-line-apps" class="anchor" aria-label="Permalink: Command-line apps" href="#command-line-apps"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Before diving into the quiche API, here are a few examples on how to use the quiche tools provided as part of the <a href="/cloudflare/quiche/blob/master/apps">quiche-apps</a> crate.</p> <p dir="auto">After cloning the project according to the command mentioned in the <a href="#building">building</a> section, the client can be run as follows:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo run --bin quiche-client -- https://cloudflare-quic.com/"><pre> $ cargo run --bin quiche-client -- https://cloudflare-quic.com/</pre></div> <p dir="auto">while the server can be run as follows:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo run --bin quiche-server -- --cert apps/src/bin/cert.crt --key apps/src/bin/cert.key"><pre> $ cargo run --bin quiche-server -- --cert apps/src/bin/cert.crt --key apps/src/bin/cert.key</pre></div> <p dir="auto">(note that the certificate provided is self-signed and should not be used in production)</p> <p dir="auto">Use the <code>--help</code> command-line flag to get a more detailed description of each tool's options.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Configuring connections</h3><a id="user-content-configuring-connections" class="anchor" aria-label="Permalink: Configuring connections" href="#configuring-connections"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The first step in establishing a QUIC connection using quiche is creating a <a href="https://docs.quic.tech/quiche/struct.Config.html" rel="nofollow"><code>Config</code></a> object:</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="let mut config = quiche::Config::new(quiche::PROTOCOL_VERSION)?; config.set_application_protos(&[b"example-proto"]); // Additional configuration specific to application and use case..."><pre><span class="pl-k">let</span> <span class="pl-k">mut</span> config = quiche<span class="pl-kos">::</span><span class="pl-smi">Config</span><span class="pl-kos">::</span><span class="pl-en">new</span><span class="pl-kos">(</span>quiche<span class="pl-kos">::</span><span class="pl-v">PROTOCOL_VERSION</span><span class="pl-kos">)</span>?<span class="pl-kos">;</span> config<span class="pl-kos">.</span><span class="pl-en">set_application_protos</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-kos">[</span><span class="pl-s">b"example-proto"</span><span class="pl-kos">]</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// Additional configuration specific to application and use case...</span></pre></div> <p dir="auto">The <a href="https://docs.quic.tech/quiche/struct.Config.html" rel="nofollow"><code>Config</code></a> object controls important aspects of the QUIC connection such as QUIC version, ALPN IDs, flow control, congestion control, idle timeout and other properties or features.</p> <p dir="auto">QUIC is a general-purpose transport protocol and there are several configuration properties where there is no reasonable default value. For example, the permitted number of concurrent streams of any particular type is dependent on the application running over QUIC, and other use-case specific concerns.</p> <p dir="auto">quiche defaults several properties to zero, applications most likely need to set these to something else to satisfy their needs using the following:</p> <ul dir="auto"> <li><a href="https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_streams_bidi" rel="nofollow"><code>set_initial_max_streams_bidi()</code></a></li> <li><a href="https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_streams_uni" rel="nofollow"><code>set_initial_max_streams_uni()</code></a></li> <li><a href="https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_data" rel="nofollow"><code>set_initial_max_data()</code></a></li> <li><a href="https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_stream_data_bidi_local" rel="nofollow"><code>set_initial_max_stream_data_bidi_local()</code></a></li> <li><a href="https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_stream_data_bidi_remote" rel="nofollow"><code>set_initial_max_stream_data_bidi_remote()</code></a></li> <li><a href="https://docs.rs/quiche/latest/quiche/struct.Config.html#method.set_initial_max_stream_data_uni" rel="nofollow"><code>set_initial_max_stream_data_uni()</code></a></li> </ul> <p dir="auto"><a href="https://docs.quic.tech/quiche/struct.Config.html" rel="nofollow"><code>Config</code></a> also holds TLS configuration. This can be changed by mutators on the an existing object, or by constructing a TLS context manually and creating a configuration using <a href="https://docs.quic.tech/quiche/struct.Config.html#method.with_boring_ssl_ctx_builder" rel="nofollow"><code>with_boring_ssl_ctx_builder()</code></a>.</p> <p dir="auto">A configuration object can be shared among multiple connections.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Connection setup</h3><a id="user-content-connection-setup" class="anchor" aria-label="Permalink: Connection setup" href="#connection-setup"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">On the client-side the <a href="https://docs.quic.tech/quiche/fn.connect.html" rel="nofollow"><code>connect()</code></a> utility function can be used to create a new connection, while <a href="https://docs.quic.tech/quiche/fn.accept.html" rel="nofollow"><code>accept()</code></a> is for servers:</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="// Client connection. let conn = quiche::connect(Some(&server_name), &scid, local, peer, &mut config)?; // Server connection. let conn = quiche::accept(&scid, None, local, peer, &mut config)?;"><pre><span class="pl-c">// Client connection.</span> <span class="pl-k">let</span> conn = quiche<span class="pl-kos">::</span><span class="pl-en">connect</span><span class="pl-kos">(</span><span class="pl-en">Some</span><span class="pl-kos">(</span><span class="pl-c1">&</span>server_name<span class="pl-kos">)</span><span class="pl-kos">,</span> <span class="pl-c1">&</span>scid<span class="pl-kos">,</span> local<span class="pl-kos">,</span> peer<span class="pl-kos">,</span> <span class="pl-c1">&</span><span class="pl-k">mut</span> config<span class="pl-kos">)</span>?<span class="pl-kos">;</span> <span class="pl-c">// Server connection.</span> <span class="pl-k">let</span> conn = quiche<span class="pl-kos">::</span><span class="pl-en">accept</span><span class="pl-kos">(</span><span class="pl-c1">&</span>scid<span class="pl-kos">,</span> <span class="pl-v">None</span><span class="pl-kos">,</span> local<span class="pl-kos">,</span> peer<span class="pl-kos">,</span> <span class="pl-c1">&</span><span class="pl-k">mut</span> config<span class="pl-kos">)</span>?<span class="pl-kos">;</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Handling incoming packets</h3><a id="user-content-handling-incoming-packets" class="anchor" aria-label="Permalink: Handling incoming packets" href="#handling-incoming-packets"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Using the connection's <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.recv" rel="nofollow"><code>recv()</code></a> method the application can process incoming packets that belong to that connection from the network:</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="let to = socket.local_addr().unwrap(); loop { let (read, from) = socket.recv_from(&mut buf).unwrap(); let recv_info = quiche::RecvInfo { from, to }; let read = match conn.recv(&mut buf[..read], recv_info) { Ok(v) => v, Err(e) => { // An error occurred, handle it. break; }, }; }"><pre><span class="pl-k">let</span> to = socket<span class="pl-kos">.</span><span class="pl-en">local_addr</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">unwrap</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-k">loop</span> <span class="pl-kos">{</span> <span class="pl-k">let</span> <span class="pl-kos">(</span>read<span class="pl-kos">,</span> from<span class="pl-kos">)</span> = socket<span class="pl-kos">.</span><span class="pl-en">recv_from</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-k">mut</span> buf<span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">unwrap</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-k">let</span> recv_info = quiche<span class="pl-kos">::</span><span class="pl-smi">RecvInfo</span> <span class="pl-kos">{</span> from<span class="pl-kos">,</span> to <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-k">let</span> read = <span class="pl-k">match</span> conn<span class="pl-kos">.</span><span class="pl-en">recv</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-k">mut</span> buf<span class="pl-kos">[</span>..read<span class="pl-kos">]</span><span class="pl-kos">,</span> recv_info<span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-v">Ok</span><span class="pl-kos">(</span>v<span class="pl-kos">)</span> => v<span class="pl-kos">,</span> <span class="pl-v">Err</span><span class="pl-kos">(</span>e<span class="pl-kos">)</span> => <span class="pl-kos">{</span> <span class="pl-c">// An error occurred, handle it.</span> <span class="pl-k">break</span><span class="pl-kos">;</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> <span class="pl-kos">}</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Generating outgoing packets</h3><a id="user-content-generating-outgoing-packets" class="anchor" aria-label="Permalink: Generating outgoing packets" href="#generating-outgoing-packets"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Outgoing packet are generated using the connection's <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.send" rel="nofollow"><code>send()</code></a> method instead:</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="loop { let (write, send_info) = match conn.send(&mut out) { Ok(v) => v, Err(quiche::Error::Done) => { // Done writing. break; }, Err(e) => { // An error occurred, handle it. break; }, }; socket.send_to(&out[..write], &send_info.to).unwrap(); }"><pre><span class="pl-k">loop</span> <span class="pl-kos">{</span> <span class="pl-k">let</span> <span class="pl-kos">(</span>write<span class="pl-kos">,</span> send_info<span class="pl-kos">)</span> = <span class="pl-k">match</span> conn<span class="pl-kos">.</span><span class="pl-en">send</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-k">mut</span> out<span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-v">Ok</span><span class="pl-kos">(</span>v<span class="pl-kos">)</span> => v<span class="pl-kos">,</span> <span class="pl-v">Err</span><span class="pl-kos">(</span>quiche<span class="pl-kos">::</span><span class="pl-smi">Error</span><span class="pl-kos">::</span><span class="pl-v">Done</span><span class="pl-kos">)</span> => <span class="pl-kos">{</span> <span class="pl-c">// Done writing.</span> <span class="pl-k">break</span><span class="pl-kos">;</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-v">Err</span><span class="pl-kos">(</span>e<span class="pl-kos">)</span> => <span class="pl-kos">{</span> <span class="pl-c">// An error occurred, handle it.</span> <span class="pl-k">break</span><span class="pl-kos">;</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> socket<span class="pl-kos">.</span><span class="pl-en">send_to</span><span class="pl-kos">(</span><span class="pl-c1">&</span>out<span class="pl-kos">[</span>..write<span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-c1">&</span>send_info<span class="pl-kos">.</span><span class="pl-c1">to</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">unwrap</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-kos">}</span></pre></div> <p dir="auto">When packets are sent, the application is responsible for maintaining a timer to react to time-based connection events. The timer expiration can be obtained using the connection's <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.timeout" rel="nofollow"><code>timeout()</code></a> method.</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="let timeout = conn.timeout();"><pre><span class="pl-k">let</span> timeout = conn<span class="pl-kos">.</span><span class="pl-en">timeout</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span></pre></div> <p dir="auto">The application is responsible for providing a timer implementation, which can be specific to the operating system or networking framework used. When a timer expires, the connection's <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.on_timeout" rel="nofollow"><code>on_timeout()</code></a> method should be called, after which additional packets might need to be sent on the network:</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="// Timeout expired, handle it. conn.on_timeout(); // Send more packets as needed after timeout. loop { let (write, send_info) = match conn.send(&mut out) { Ok(v) => v, Err(quiche::Error::Done) => { // Done writing. break; }, Err(e) => { // An error occurred, handle it. break; }, }; socket.send_to(&out[..write], &send_info.to).unwrap(); }"><pre><span class="pl-c">// Timeout expired, handle it.</span> conn<span class="pl-kos">.</span><span class="pl-en">on_timeout</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-c">// Send more packets as needed after timeout.</span> <span class="pl-k">loop</span> <span class="pl-kos">{</span> <span class="pl-k">let</span> <span class="pl-kos">(</span>write<span class="pl-kos">,</span> send_info<span class="pl-kos">)</span> = <span class="pl-k">match</span> conn<span class="pl-kos">.</span><span class="pl-en">send</span><span class="pl-kos">(</span><span class="pl-c1">&</span><span class="pl-k">mut</span> out<span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-v">Ok</span><span class="pl-kos">(</span>v<span class="pl-kos">)</span> => v<span class="pl-kos">,</span> <span class="pl-v">Err</span><span class="pl-kos">(</span>quiche<span class="pl-kos">::</span><span class="pl-smi">Error</span><span class="pl-kos">::</span><span class="pl-v">Done</span><span class="pl-kos">)</span> => <span class="pl-kos">{</span> <span class="pl-c">// Done writing.</span> <span class="pl-k">break</span><span class="pl-kos">;</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-v">Err</span><span class="pl-kos">(</span>e<span class="pl-kos">)</span> => <span class="pl-kos">{</span> <span class="pl-c">// An error occurred, handle it.</span> <span class="pl-k">break</span><span class="pl-kos">;</span> <span class="pl-kos">}</span><span class="pl-kos">,</span> <span class="pl-kos">}</span><span class="pl-kos">;</span> socket<span class="pl-kos">.</span><span class="pl-en">send_to</span><span class="pl-kos">(</span><span class="pl-c1">&</span>out<span class="pl-kos">[</span>..write<span class="pl-kos">]</span><span class="pl-kos">,</span> <span class="pl-c1">&</span>send_info<span class="pl-kos">.</span><span class="pl-c1">to</span><span class="pl-kos">)</span><span class="pl-kos">.</span><span class="pl-en">unwrap</span><span class="pl-kos">(</span><span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-kos">}</span></pre></div> <div class="markdown-heading" dir="auto"><h4 tabindex="-1" class="heading-element" dir="auto">Pacing</h4><a id="user-content-pacing" class="anchor" aria-label="Permalink: Pacing" href="#pacing"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">It is recommended that applications <a href="https://datatracker.ietf.org/doc/html/rfc9002#section-7.7" rel="nofollow">pace</a> sending of outgoing packets to avoid creating packet bursts that could cause short-term congestion and losses in the network.</p> <p dir="auto">quiche exposes pacing hints for outgoing packets through the [<code>at</code>] field of the [<code>SendInfo</code>] structure that is returned by the <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.send" rel="nofollow"><code>send()</code></a> method. This field represents the time when a specific packet should be sent into the network.</p> <p dir="auto">Applications can use these hints by artificially delaying the sending of packets through platform-specific mechanisms (such as the <a href="https://man7.org/linux/man-pages/man8/tc-etf.8.html" rel="nofollow"><code>SO_TXTIME</code></a> socket option on Linux), or custom methods (for example by using user-space timers).</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Sending and receiving stream data</h3><a id="user-content-sending-and-receiving-stream-data" class="anchor" aria-label="Permalink: Sending and receiving stream data" href="#sending-and-receiving-stream-data"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">After some back and forth, the connection will complete its handshake and will be ready for sending or receiving application data.</p> <p dir="auto">Data can be sent on a stream by using the <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.stream_send" rel="nofollow"><code>stream_send()</code></a> method:</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="if conn.is_established() { // Handshake completed, send some data on stream 0. conn.stream_send(0, b"hello", true)?; }"><pre><span class="pl-k">if</span> conn<span class="pl-kos">.</span><span class="pl-en">is_established</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-c">// Handshake completed, send some data on stream 0.</span> conn<span class="pl-kos">.</span><span class="pl-en">stream_send</span><span class="pl-kos">(</span><span class="pl-c1">0</span><span class="pl-kos">,</span> <span class="pl-s">b"hello"</span><span class="pl-kos">,</span> <span class="pl-c1">true</span><span class="pl-kos">)</span>?<span class="pl-kos">;</span> <span class="pl-kos">}</span></pre></div> <p dir="auto">The application can check whether there are any readable streams by using the connection's <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.readable" rel="nofollow"><code>readable()</code></a> method, which returns an iterator over all the streams that have outstanding data to read.</p> <p dir="auto">The <a href="https://docs.quic.tech/quiche/struct.Connection.html#method.stream_recv" rel="nofollow"><code>stream_recv()</code></a> method can then be used to retrieve the application data from the readable stream:</p> <div class="highlight highlight-source-rust notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="if conn.is_established() { // Iterate over readable streams. for stream_id in conn.readable() { // Stream is readable, read until there's no more data. while let Ok((read, fin)) = conn.stream_recv(stream_id, &mut buf) { println!("Got {} bytes on stream {}", read, stream_id); } } }"><pre><span class="pl-k">if</span> conn<span class="pl-kos">.</span><span class="pl-en">is_established</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-c">// Iterate over readable streams.</span> <span class="pl-k">for</span> stream_id <span class="pl-k">in</span> conn<span class="pl-kos">.</span><span class="pl-en">readable</span><span class="pl-kos">(</span><span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-c">// Stream is readable, read until there's no more data.</span> <span class="pl-k">while</span> <span class="pl-k">let</span> <span class="pl-v">Ok</span><span class="pl-kos">(</span><span class="pl-kos">(</span>read<span class="pl-kos">,</span> fin<span class="pl-kos">)</span><span class="pl-kos">)</span> = conn<span class="pl-kos">.</span><span class="pl-en">stream_recv</span><span class="pl-kos">(</span>stream_id<span class="pl-kos">,</span> <span class="pl-c1">&</span><span class="pl-k">mut</span> buf<span class="pl-kos">)</span> <span class="pl-kos">{</span> <span class="pl-en">println</span><span class="pl-en">!</span><span class="pl-kos">(</span><span class="pl-s">"Got {} bytes on stream {}"</span><span class="pl-kos">,</span> read<span class="pl-kos">,</span> stream_id<span class="pl-kos">)</span><span class="pl-kos">;</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span> <span class="pl-kos">}</span></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">HTTP/3</h3><a id="user-content-http3" class="anchor" aria-label="Permalink: HTTP/3" href="#http3"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">The quiche <a href="https://docs.quic.tech/quiche/h3/index.html" rel="nofollow">HTTP/3 module</a> provides a high level API for sending and receiving HTTP requests and responses on top of the QUIC transport protocol.</p> <p dir="auto">Have a look at the [quiche/examples/] directory for more complete examples on how to use the quiche API, including examples on how to use quiche in C/C++ applications (see below for more information).</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Calling quiche from C/C++</h2><a id="user-content-calling-quiche-from-cc" class="anchor" aria-label="Permalink: Calling quiche from C/C++" href="#calling-quiche-from-cc"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">quiche exposes a <a href="https://github.com/cloudflare/quiche/blob/master/quiche/include/quiche.h">thin C API</a> on top of the Rust API that can be used to more easily integrate quiche into C/C++ applications (as well as in other languages that allow calling C APIs via some form of FFI). The C API follows the same design of the Rust one, modulo the constraints imposed by the C language itself.</p> <p dir="auto">When running <code>cargo build</code>, a static library called <code>libquiche.a</code> will be built automatically alongside the Rust one. This is fully stand-alone and can be linked directly into C/C++ applications.</p> <p dir="auto">Note that in order to enable the FFI API, the <code>ffi</code> feature must be enabled (it is disabled by default), by passing <code>--features ffi</code> to <code>cargo</code>.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Building</h2><a id="user-content-building" class="anchor" aria-label="Permalink: Building" href="#building"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">quiche requires Rust 1.81 or later to build. The latest stable Rust release can be installed using <a href="https://rustup.rs/" rel="nofollow">rustup</a>.</p> <p dir="auto">Once the Rust build environment is setup, the quiche source code can be fetched using git:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ git clone --recursive https://github.com/cloudflare/quiche"><pre> $ git clone --recursive https://github.com/cloudflare/quiche</pre></div> <p dir="auto">and then built using cargo:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo build --examples"><pre> $ cargo build --examples</pre></div> <p dir="auto">cargo can also be used to run the testsuite:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo test"><pre> $ cargo <span class="pl-c1">test</span></pre></div> <p dir="auto">Note that <a href="https://boringssl.googlesource.com/boringssl/" rel="nofollow">BoringSSL</a>, which is used to implement QUIC's cryptographic handshake based on TLS, needs to be built and linked to quiche. This is done automatically when building quiche using cargo, but requires the <code>cmake</code> command to be available during the build process. On Windows you also need <a href="https://www.nasm.us/" rel="nofollow">NASM</a>. The <a href="https://github.com/google/boringssl/blob/master/BUILDING.md">official BoringSSL documentation</a> has more details.</p> <p dir="auto">In alternative you can use your own custom build of BoringSSL by configuring the BoringSSL directory with the <code>QUICHE_BSSL_PATH</code> environment variable:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ QUICHE_BSSL_PATH="/path/to/boringssl" cargo build --examples"><pre> $ QUICHE_BSSL_PATH=<span class="pl-s"><span class="pl-pds">"</span>/path/to/boringssl<span class="pl-pds">"</span></span> cargo build --examples</pre></div> <p dir="auto">Alternatively you can use <a href="https://github.com/quictls/openssl">OpenSSL/quictls</a>. To enable quiche to use this vendor the <code>openssl</code> feature can be added to the <code>--feature</code> list. Be aware that <code>0-RTT</code> is not supported if this vendor is used.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Building for Android</h3><a id="user-content-building-for-android" class="anchor" aria-label="Permalink: Building for Android" href="#building-for-android"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Building quiche for Android (NDK version 19 or higher, 21 recommended), can be done using <a href="https://docs.rs/crate/cargo-ndk" rel="nofollow">cargo-ndk</a> (v2.0 or later).</p> <p dir="auto">First the <a href="https://developer.android.com/ndk" rel="nofollow">Android NDK</a> needs to be installed, either using Android Studio or directly, and the <code>ANDROID_NDK_HOME</code> environment variable needs to be set to the NDK installation path, e.g.:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ export ANDROID_NDK_HOME=/usr/local/share/android-ndk"><pre> $ <span class="pl-k">export</span> ANDROID_NDK_HOME=/usr/local/share/android-ndk</pre></div> <p dir="auto">Then the Rust toolchain for the Android architectures needed can be installed as follows:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ rustup target add aarch64-linux-android armv7-linux-androideabi i686-linux-android x86_64-linux-android"><pre> $ rustup target add aarch64-linux-android armv7-linux-androideabi i686-linux-android x86_64-linux-android</pre></div> <p dir="auto">Note that the minimum API level is 21 for all target architectures.</p> <p dir="auto"><a href="https://docs.rs/crate/cargo-ndk" rel="nofollow">cargo-ndk</a> (v2.0 or later) also needs to be installed:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo install cargo-ndk"><pre> $ cargo install cargo-ndk</pre></div> <p dir="auto">Finally the quiche library can be built using the following procedure. Note that the <code>-t <architecture></code> and <code>-p <NDK version></code> options are mandatory.</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo ndk -t arm64-v8a -p 21 -- build --features ffi"><pre> $ cargo ndk -t arm64-v8a -p 21 -- build --features ffi</pre></div> <p dir="auto">See <a href="https://github.com/cloudflare/quiche/blob/master/tools/android/build_android_ndk19.sh">build_android_ndk19.sh</a> for more information.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Building for iOS</h3><a id="user-content-building-for-ios" class="anchor" aria-label="Permalink: Building for iOS" href="#building-for-ios"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">To build quiche for iOS, you need the following:</p> <ul dir="auto"> <li>Install Xcode command-line tools. You can install them with Xcode or with the following command:</li> </ul> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ xcode-select --install"><pre> $ xcode-select --install</pre></div> <ul dir="auto"> <li>Install the Rust toolchain for iOS architectures:</li> </ul> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ rustup target add aarch64-apple-ios x86_64-apple-ios"><pre> $ rustup target add aarch64-apple-ios x86_64-apple-ios</pre></div> <ul dir="auto"> <li>Install <code>cargo-lipo</code>:</li> </ul> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo install cargo-lipo"><pre> $ cargo install cargo-lipo</pre></div> <p dir="auto">To build libquiche, run the following command:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo lipo --features ffi"><pre> $ cargo lipo --features ffi</pre></div> <p dir="auto">or</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ cargo lipo --features ffi --release"><pre> $ cargo lipo --features ffi --release</pre></div> <p dir="auto">iOS build is tested in Xcode 10.1 and Xcode 11.2.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Building Docker images</h3><a id="user-content-building-docker-images" class="anchor" aria-label="Permalink: Building Docker images" href="#building-docker-images"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">In order to build the Docker images, simply run the following command:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content=" $ make docker-build"><pre> $ make docker-build</pre></div> <p dir="auto">You can find the quiche Docker images on the following Docker Hub repositories:</p> <ul dir="auto"> <li><a href="https://hub.docker.com/repository/docker/cloudflare/quiche" rel="nofollow">cloudflare/quiche</a></li> <li><a href="https://hub.docker.com/repository/docker/cloudflare/quiche-qns" rel="nofollow">cloudflare/quiche-qns</a></li> </ul> <p dir="auto">The <code>latest</code> tag will be updated whenever quiche master branch updates.</p> <p dir="auto"><strong>cloudflare/quiche</strong></p> <p dir="auto">Provides a server and client installed in /usr/local/bin.</p> <p dir="auto"><strong>cloudflare/quiche-qns</strong></p> <p dir="auto">Provides the script to test quiche within the <a href="https://github.com/marten-seemann/quic-interop-runner">quic-interop-runner</a>.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Copyright</h2><a id="user-content-copyright" class="anchor" aria-label="Permalink: Copyright" href="#copyright"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Copyright (C) 2018-2019, Cloudflare, Inc.</p> <p dir="auto">See <a href="https://github.com/cloudflare/quiche/tree/master/COPYING">COPYING</a> for the license.</p> </article></div></div></div></div></div>   <script type="application/json" id="__PRIMER_DATA_:R0:__">{"resolvedServerColorMode":"day"}</script></div> </react-partial> <input type="hidden" data-csrf="true" value="lGgmKFvE/KsODqR8QGavc3KnrYn3cdUG8Z0wq9D407SEFskEQ9yblXq/S61G4wHOG0n5FnV0rzwfIsbuetfd1A==" /> </div> <div data-view-component="true" class="Layout-sidebar"> <div class="BorderGrid about-margin" data-pjax> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <div class="hide-sm hide-md"> <h2 class="mb-3 h4">About</h2> <p class="f4 my-3"> 🥧 Savoury implementation of the QUIC transport protocol and HTTP/3 </p> <div class="my-3 d-flex flex-items-center"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link flex-shrink-0 mr-2"> <path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path> </svg> <span class="flex-auto min-width-0 css-truncate css-truncate-target width-fit"> <a title="https://docs.quic.tech/quiche/" role="link" target="_blank" rel="noopener noreferrer nofollow" class="text-bold" href="https://docs.quic.tech/quiche/">docs.quic.tech/quiche/</a> </span> </div> <h3 class="sr-only">Topics</h3> <div class="my-3"> <div class="f6"> <a href="/topics/rust" title="Topic: rust" data-view-component="true" class="topic-tag topic-tag-link"> rust </a> <a href="/topics/protocol" title="Topic: protocol" data-view-component="true" class="topic-tag topic-tag-link"> protocol </a> <a href="/topics/quic" title="Topic: quic" data-view-component="true" class="topic-tag topic-tag-link"> quic </a> <a href="/topics/network-programming" title="Topic: network-programming" data-view-component="true" class="topic-tag topic-tag-link"> network-programming </a> <a href="/topics/http3" title="Topic: http3" data-view-component="true" class="topic-tag topic-tag-link"> http3 </a> </div> </div> <h3 class="sr-only">Resources</h3> <div class="mt-2"> <a class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:readme"}" href="#readme-ov-file"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-book mr-2"> <path d="M0 1.75A.75.75 0 0 1 .75 1h4.253c1.227 0 2.317.59 3 1.501A3.743 3.743 0 0 1 11.006 1h4.245a.75.75 0 0 1 .75.75v10.5a.75.75 0 0 1-.75.75h-4.507a2.25 2.25 0 0 0-1.591.659l-.622.621a.75.75 0 0 1-1.06 0l-.622-.621A2.25 2.25 0 0 0 5.258 13H.75a.75.75 0 0 1-.75-.75Zm7.251 10.324.004-5.073-.002-2.253A2.25 2.25 0 0 0 5.003 2.5H1.5v9h3.757a3.75 3.75 0 0 1 1.994.574ZM8.755 4.75l-.004 7.322a3.752 3.752 0 0 1 1.992-.572H14.5v-9h-3.495a2.25 2.25 0 0 0-2.25 2.25Z"></path> </svg> Readme </a> </div> <h3 class="sr-only">License</h3> <div class="mt-2"> <a href="#BSD-2-Clause-1-ov-file" class="Link--muted" 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3.88 11 3 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L2.178 4.5H1.75a.75.75 0 0 1 0-1.5h2.234a.249.249 0 0 0 .125-.033l1.288-.737c.265-.15.564-.23.869-.23h.984V.75a.75.75 0 0 1 1.5 0Zm2.945 8.477c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L13 6.327Zm-10 0c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L3 6.327Z"></path> </svg> BSD-2-Clause license </a> </div> <h3 class="sr-only">Code of conduct</h3> <div class="mt-2"> <a href="#coc-ov-file" class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:code of conduct"}" > <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-code-of-conduct mr-2"> <path d="M8.048 2.241c.964-.709 2.079-1.238 3.325-1.241a4.616 4.616 0 0 1 3.282 1.355c.41.408.757.86.996 1.428.238.568.348 1.206.347 1.968 0 2.193-1.505 4.254-3.081 5.862-1.496 1.526-3.213 2.796-4.249 3.563l-.22.163a.749.749 0 0 1-.895 0l-.221-.163c-1.036-.767-2.753-2.037-4.249-3.563C1.51 10.008.007 7.952.002 5.762a4.614 4.614 0 0 1 1.353-3.407C3.123.585 6.223.537 8.048 2.24Zm-1.153.983c-1.25-1.033-3.321-.967-4.48.191a3.115 3.115 0 0 0-.913 2.335c0 1.556 1.109 3.24 2.652 4.813C5.463 11.898 6.96 13.032 8 13.805c.353-.262.758-.565 1.191-.905l-1.326-1.223a.75.75 0 0 1 1.018-1.102l1.48 1.366c.328-.281.659-.577.984-.887L9.99 9.802a.75.75 0 1 1 1.019-1.103l1.384 1.28c.295-.329.566-.661.81-.995L12.92 8.7l-1.167-1.168c-.674-.671-1.78-.664-2.474.03-.268.269-.538.537-.802.797-.893.882-2.319.843-3.185-.032-.346-.35-.693-.697-1.043-1.047a.75.75 0 0 1-.04-1.016c.162-.191.336-.401.52-.623.62-.748 1.356-1.637 2.166-2.417Zm7.112 4.442c.313-.65.491-1.293.491-1.916v-.001c0-.614-.088-1.045-.23-1.385-.143-.339-.357-.633-.673-.949a3.111 3.111 0 0 0-2.218-.915c-1.092.003-2.165.627-3.226 1.602-.823.755-1.554 1.637-2.228 2.45l-.127.154.562.566a.755.755 0 0 0 1.066.02l.794-.79c1.258-1.258 3.312-1.31 4.594-.032.396.394.792.791 1.173 1.173Z"></path> </svg> Code of conduct </a> </div> <h3 class="sr-only">Security policy</h3> <div class="mt-2"> <a href="#security-ov-file" class="Link--muted" data-analytics-event="{"category":"Repository Overview","action":"click","label":"location:sidebar;file:security policy"}" > <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-law mr-2"> <path d="M8.75.75V2h.985c.304 0 .603.08.867.231l1.29.736c.038.022.08.033.124.033h2.234a.75.75 0 0 1 0 1.5h-.427l2.111 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.006.005-.01.01-.045.04c-.21.176-.441.327-.686.45C14.556 10.78 13.88 11 13 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L12.178 4.5h-.162c-.305 0-.604-.079-.868-.231l-1.29-.736a.245.245 0 0 0-.124-.033H8.75V13h2.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1 0-1.5h2.5V3.5h-.984a.245.245 0 0 0-.124.033l-1.289.737c-.265.15-.564.23-.869.23h-.162l2.112 4.692a.75.75 0 0 1-.154.838l-.53-.53.529.531-.001.002-.002.002-.006.006-.016.015-.045.04c-.21.176-.441.327-.686.45C4.556 10.78 3.88 11 3 11a4.498 4.498 0 0 1-2.023-.454 3.544 3.544 0 0 1-.686-.45l-.045-.04-.016-.015-.006-.006-.004-.004v-.001a.75.75 0 0 1-.154-.838L2.178 4.5H1.75a.75.75 0 0 1 0-1.5h2.234a.249.249 0 0 0 .125-.033l1.288-.737c.265-.15.564-.23.869-.23h.984V.75a.75.75 0 0 1 1.5 0Zm2.945 8.477c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L13 6.327Zm-10 0c.285.135.718.273 1.305.273s1.02-.138 1.305-.273L3 6.327Z"></path> </svg> Security policy </a> </div> <include-fragment src="/cloudflare/quiche/hovercards/citation/sidebar_partial?tree_name=master"> </include-fragment> <div class="mt-2"> <a href="/cloudflare/quiche/activity" data-view-component="true" class="Link Link--muted"><svg text="gray" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-pulse mr-2"> <path d="M6 2c.306 0 .582.187.696.471L10 10.731l1.304-3.26A.751.751 0 0 1 12 7h3.25a.75.75 0 0 1 0 1.5h-2.742l-1.812 4.528a.751.751 0 0 1-1.392 0L6 4.77 4.696 8.03A.75.75 0 0 1 4 8.5H.75a.75.75 0 0 1 0-1.5h2.742l1.812-4.529A.751.751 0 0 1 6 2Z"></path> </svg> <span class="color-fg-muted">Activity</span></a> </div> <div class="mt-2"> <a href="/cloudflare/quiche/custom-properties" data-view-component="true" class="Link Link--muted"><svg text="gray" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-note mr-2"> <path d="M0 3.75C0 2.784.784 2 1.75 2h12.5c.966 0 1.75.784 1.75 1.75v8.5A1.75 1.75 0 0 1 14.25 14H1.75A1.75 1.75 0 0 1 0 12.25Zm1.75-.25a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25v-8.5a.25.25 0 0 0-.25-.25ZM3.5 6.25a.75.75 0 0 1 .75-.75h7a.75.75 0 0 1 0 1.5h-7a.75.75 0 0 1-.75-.75Zm.75 2.25h4a.75.75 0 0 1 0 1.5h-4a.75.75 0 0 1 0-1.5Z"></path> </svg> <span class="color-fg-muted">Custom properties</span></a> </div> <h3 class="sr-only">Stars</h3> <div class="mt-2"> <a href="/cloudflare/quiche/stargazers" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-star mr-2"> <path d="M8 .25a.75.75 0 0 1 .673.418l1.882 3.815 4.21.612a.75.75 0 0 1 .416 1.279l-3.046 2.97.719 4.192a.751.751 0 0 1-1.088.791L8 12.347l-3.766 1.98a.75.75 0 0 1-1.088-.79l.72-4.194L.818 6.374a.75.75 0 0 1 .416-1.28l4.21-.611L7.327.668A.75.75 0 0 1 8 .25Zm0 2.445L6.615 5.5a.75.75 0 0 1-.564.41l-3.097.45 2.24 2.184a.75.75 0 0 1 .216.664l-.528 3.084 2.769-1.456a.75.75 0 0 1 .698 0l2.77 1.456-.53-3.084a.75.75 0 0 1 .216-.664l2.24-2.183-3.096-.45a.75.75 0 0 1-.564-.41L8 2.694Z"></path> </svg> <strong>10k</strong> stars</a> </div> <h3 class="sr-only">Watchers</h3> <div class="mt-2"> <a href="/cloudflare/quiche/watchers" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-eye mr-2"> <path d="M8 2c1.981 0 3.671.992 4.933 2.078 1.27 1.091 2.187 2.345 2.637 3.023a1.62 1.62 0 0 1 0 1.798c-.45.678-1.367 1.932-2.637 3.023C11.67 13.008 9.981 14 8 14c-1.981 0-3.671-.992-4.933-2.078C1.797 10.83.88 9.576.43 8.898a1.62 1.62 0 0 1 0-1.798c.45-.677 1.367-1.931 2.637-3.022C4.33 2.992 6.019 2 8 2ZM1.679 7.932a.12.12 0 0 0 0 .136c.411.622 1.241 1.75 2.366 2.717C5.176 11.758 6.527 12.5 8 12.5c1.473 0 2.825-.742 3.955-1.715 1.124-.967 1.954-2.096 2.366-2.717a.12.12 0 0 0 0-.136c-.412-.621-1.242-1.75-2.366-2.717C10.824 4.242 9.473 3.5 8 3.5c-1.473 0-2.825.742-3.955 1.715-1.124.967-1.954 2.096-2.366 2.717ZM8 10a2 2 0 1 1-.001-3.999A2 2 0 0 1 8 10Z"></path> </svg> <strong>161</strong> watching</a> </div> <h3 class="sr-only">Forks</h3> <div class="mt-2"> <a href="/cloudflare/quiche/forks" data-view-component="true" class="Link Link--muted"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-repo-forked mr-2"> <path d="M5 5.372v.878c0 .414.336.75.75.75h4.5a.75.75 0 0 0 .75-.75v-.878a2.25 2.25 0 1 1 1.5 0v.878a2.25 2.25 0 0 1-2.25 2.25h-1.5v2.128a2.251 2.251 0 1 1-1.5 0V8.5h-1.5A2.25 2.25 0 0 1 3.5 6.25v-.878a2.25 2.25 0 1 1 1.5 0ZM5 3.25a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Zm6.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Zm-3 8.75a.75.75 0 1 0-1.5 0 .75.75 0 0 0 1.5 0Z"></path> </svg> <strong>777</strong> forks</a> </div> <div class="mt-2"> <a class="Link--muted" href="/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fcloudflare%2Fquiche&report=cloudflare+%28user%29"> Report repository </a> </div> </div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame"> <a href="/cloudflare/quiche/releases" data-view-component="true" class="Link--primary no-underline Link">Releases <span title="31" data-view-component="true" class="Counter">31</span></a></h2> <a class="Link--primary d-flex no-underline" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/cloudflare/quiche/releases/tag/0.23.4"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-tag flex-shrink-0 mt-1 color-fg-success"> <path d="M1 7.775V2.75C1 1.784 1.784 1 2.75 1h5.025c.464 0 .91.184 1.238.513l6.25 6.25a1.75 1.75 0 0 1 0 2.474l-5.026 5.026a1.75 1.75 0 0 1-2.474 0l-6.25-6.25A1.752 1.752 0 0 1 1 7.775Zm1.5 0c0 .066.026.13.073.177l6.25 6.25a.25.25 0 0 0 .354 0l5.025-5.025a.25.25 0 0 0 0-.354l-6.25-6.25a.25.25 0 0 0-.177-.073H2.75a.25.25 0 0 0-.25.25ZM6 5a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z"></path> </svg> <div class="ml-2 min-width-0"> <div class="d-flex"> <span class="css-truncate css-truncate-target text-bold mr-2" style="max-width: none;">🚑 0.23.4</span> <span title="Label: Latest" data-view-component="true" class="Label Label--success flex-shrink-0"> Latest </span> </div> <div class="text-small color-fg-muted"><relative-time datetime="2025-03-07T15:38:12Z" class="no-wrap">Mar 7, 2025</relative-time></div> </div> </a> <div data-view-component="true" class="mt-3"> <a text="small" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/cloudflare/quiche/releases" data-view-component="true" class="Link">+ 30 releases</a></div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/orgs/cloudflare/packages?repo_name=quiche" data-view-component="true" class="Link--primary no-underline Link d-flex flex-items-center">Packages <span title="0" hidden="hidden" data-view-component="true" class="Counter ml-1">0</span></a></h2> <div class="text-small color-fg-muted" > No packages published <br> </div> </div> </div> <div class="BorderGrid-row" > <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/cloudflare/quiche/network/dependents" data-view-component="true" class="Link--primary no-underline Link">Used by <span title="162" data-view-component="true" class="Counter">162</span></a> </h2> <a class="d-flex flex-items-center" href="/cloudflare/quiche/network/dependents"> <ul class="hx_flex-avatar-stack list-style-none min-width-0"> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/17973891?s=64&v=4" width="32" height="32" alt="@xmh0511" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/21025159?s=64&v=4" width="32" height="32" alt="@xacrimon" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar" src="https://avatars.githubusercontent.com/u/314135?s=64&v=4" width="32" height="32" alt="@cloudflare" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/20824933?s=64&v=4" width="32" height="32" alt="@BryanFRD" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/118622627?s=64&v=4" width="32" height="32" alt="@dosar1" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/114429894?s=64&v=4" width="32" height="32" alt="@salahhazaea" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/1253355?s=64&v=4" width="32" height="32" alt="@jsam" /> </li> <li class="hx_flex-avatar-stack-item"> <img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/83701430?s=64&v=4" width="32" height="32" alt="@dann5525" /> </li> </ul> <span class="px-2 text-bold text-small no-wrap"> + 154 </span> </a> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3"> <a href="/cloudflare/quiche/graphs/contributors" data-view-component="true" class="Link--primary no-underline Link d-flex flex-items-center">Contributors <span title="102" data-view-component="true" class="Counter ml-1">102</span></a></h2> <ul class="list-style-none d-flex flex-wrap mb-n2"> <li class="mb-2 mr-2" > <a href="https://github.com/ghedo" class="" data-hovercard-type="user" data-hovercard-url="/users/ghedo/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/117643?s=64&v=4" alt="@ghedo" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/apps/github-actions" class="" > <img src="https://avatars.githubusercontent.com/in/15368?s=64&v=4" alt="@github-actions[bot]" size="32" height="32" width="32" data-view-component="true" class="avatar" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/traviscibot" class="" data-hovercard-type="user" data-hovercard-url="/users/traviscibot/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/33116358?s=64&v=4" alt="@traviscibot" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/LPardue" class="" data-hovercard-type="user" data-hovercard-url="/users/LPardue/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/6571445?s=64&v=4" alt="@LPardue" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/junhochoi" class="" data-hovercard-type="user" data-hovercard-url="/users/junhochoi/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/1229714?s=64&v=4" alt="@junhochoi" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/normanmaurer" class="" data-hovercard-type="user" data-hovercard-url="/users/normanmaurer/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/439362?s=64&v=4" alt="@normanmaurer" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/ehaydenr" class="" data-hovercard-type="user" data-hovercard-url="/users/ehaydenr/hovercard" 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