wasmer/rustdoc/backtrace/fn.clear_symbol_cache.html

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2019-09-06 15:57:44 -07:00
<!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="API documentation for the Rust `clear_symbol_cache` fn in crate `backtrace`."><meta name="keywords" content="rust, rustlang, rust-lang, clear_symbol_cache"><title>backtrace::clear_symbol_cache - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="../favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><a href='../backtrace/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><div class="sidebar-elems"><p class='location'><a href='index.html'>backtrace</a></p><script>window.sidebarCurrent = {name: 'clear_symbol_cache', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press S to search, ? for more options…" type="search"></div><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>&#x2212;</span>]</a></span><a class='srclink' href='../src/backtrace/symbolize/mod.rs.html#451-456' title='goto source code'>[src]</a></span><span class='in-band'>Function <a href='index.html'>backtrace</a>::<wbr><a class="fn" href=''>clear_symbol_cache</a></span></h1><pre class='rust fn'>pub fn clear_symbol_cache()</pre><div class='docblock'><p>Attempt to reclaim that cached memory used to symbolicate addresses.</p>
<p>This method will attempt to release any global data structures that have
otherwise been cached globally or in the thread which typically represent
parsed DWARF information or similar.</p>
<h1 id="caveats" class="section-header"><a href="#caveats">Caveats</a></h1>
<p>While this function is always available it doesn't actually do anything on
most implementations. Libraries like dbghelp or libbacktrace do not provide
facilities to deallocate state and manage the allocated memory. For now the
<code>gimli-symbolize</code> feature of this crate is the only feature where this
function has any effect.</p>
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