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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Core implementation of `register_admin_function` against a pair of registries, parameterized so tests can exercise it with local registries."><title>register_admin_function_in in common_function::function_registry - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.0-nightly (ac7f9ec7d 2026-03-20)" data-channel="nightly" data-search-js="search-63369b7b.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">register_admin_function_in</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../common_function/index.html">common_<wbr>function</a><span class="version">1.3.0</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>function_<wbr>registry</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">common_function</a>::<wbr><a href="index.html">function_registry</a></div><h1>Function <span class="fn">register_<wbr>admin_<wbr>function_<wbr>in</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/common_function/function_registry.rs.html#306-334">Source</a> </span></div><pre class="rust item-decl"><code>fn register_admin_function_in(
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admin_registry: &<a class="struct" href="struct.FunctionRegistry.html" title="struct common_function::function_registry::FunctionRegistry">FunctionRegistry</a>,
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normal_registry: &<a class="struct" href="struct.FunctionRegistry.html" title="struct common_function::function_registry::FunctionRegistry">FunctionRegistry</a>,
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func: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="../function_factory/struct.ScalarFunctionFactory.html" title="struct common_function::function_factory::ScalarFunctionFactory">ScalarFunctionFactory</a>>,
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) -> <a class="enum" href="enum.FunctionRegistrationResult.html" title="enum common_function::function_registry::FunctionRegistrationResult">FunctionRegistrationResult</a></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Core implementation of <a href="fn.register_admin_function.html" title="fn common_function::function_registry::register_admin_function"><code>register_admin_function</code></a> against a pair of
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registries, parameterized so tests can exercise it with local registries.</p>
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<p>Locking: the ADMIN-registry write lock is acquired first, then a read lock
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on the normal registry, and the normal-registry guard (bound to
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<code>normal_functions</code>) is kept alive through both the normal-name check and
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the ADMIN insertion below. This is the only code path that holds both
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registries’ locks, so the ADMIN -> FUNCTION acquisition order is
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consistent and a concurrent normal-registry registration cannot slip in
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between the check and the ADMIN insert and be shadowed.</p>
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<p>The enforced contract is one-way: it only guards the ADMIN registration
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against names already present in the normal registry. A later ordinary
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<a href="struct.FunctionRegistry.html#method.register" title="method common_function::function_registry::FunctionRegistry::register"><code>FunctionRegistry::register</code></a> may still install the same name in the
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normal registry because the normal registry keeps its legacy replace
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semantics.</p>
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</div></details></section></div></main></body></html> |