mirror of
https://github.com/rstudio/shiny.git
synced 2026-01-10 15:38:19 -05:00
135 lines
8.8 KiB
HTML
135 lines
8.8 KiB
HTML
<!DOCTYPE html>
|
|
<!-- Generated by pkgdown: do not edit by hand --><html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Create memory cache (deprecated) — memoryCache • shiny</title><!-- jquery --><script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js" integrity="sha512-v2CJ7UaYy4JwqLDIrZUI/4hqeoQieOmAZNXBeQyjo21dadnwR+8ZaIJVT8EE2iyI61OV8e6M8PP2/4hpQINQ/g==" crossorigin="anonymous" referrerpolicy="no-referrer"></script><!-- Bootstrap --><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css" integrity="sha256-bZLfwXAP04zRMK2BjiO8iu9pf4FbLqX6zitd+tIvLhE=" crossorigin="anonymous"><script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/js/bootstrap.min.js" integrity="sha256-nuL8/2cJ5NDSSwnKD8VqreErSWHtnEP9E7AySL+1ev4=" crossorigin="anonymous"></script><!-- bootstrap-toc --><link rel="stylesheet" href="../bootstrap-toc.css"><script src="../bootstrap-toc.js"></script><!-- Font Awesome icons --><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/all.min.css" integrity="sha256-mmgLkCYLUQbXn0B1SRqzHar6dCnv9oZFPEC1g1cwlkk=" crossorigin="anonymous"><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/v4-shims.min.css" integrity="sha256-wZjR52fzng1pJHwx4aV2AO3yyTOXrcDW7jBpJtTwVxw=" crossorigin="anonymous"><!-- clipboard.js --><script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.6/clipboard.min.js" integrity="sha256-inc5kl9MA1hkeYUt+EC3BhlIgyp/2jDIyBLS6k3UxPI=" crossorigin="anonymous"></script><!-- headroom.js --><script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/headroom.min.js" integrity="sha256-AsUX4SJE1+yuDu5+mAVzJbuYNPHj/WroHuZ8Ir/CkE0=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/jQuery.headroom.min.js" integrity="sha256-ZX/yNShbjqsohH1k95liqY9Gd8uOiE1S4vZc+9KQ1K4=" crossorigin="anonymous"></script><!-- pkgdown --><link href="../pkgdown.css" rel="stylesheet"><script src="../pkgdown.js"></script><meta property="og:title" content="Create memory cache (deprecated) — memoryCache"><meta property="og:description" content="Create memory cache (deprecated)"><meta property="og:image" content="/logo.png"><!-- mathjax --><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js" integrity="sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js" integrity="sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA=" crossorigin="anonymous"></script><!--[if lt IE 9]>
|
|
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
|
|
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
|
|
<![endif]--></head><body data-spy="scroll" data-target="#toc">
|
|
|
|
|
|
<div class="container template-reference-topic">
|
|
<header><div class="navbar navbar-default navbar-fixed-top" role="navigation">
|
|
<div class="container">
|
|
<div class="navbar-header">
|
|
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false">
|
|
<span class="sr-only">Toggle navigation</span>
|
|
<span class="icon-bar"></span>
|
|
<span class="icon-bar"></span>
|
|
<span class="icon-bar"></span>
|
|
</button>
|
|
<span class="navbar-brand">
|
|
<a class="navbar-link" href="../index.html">shiny</a>
|
|
<span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.12.0.9000</span>
|
|
</span>
|
|
</div>
|
|
|
|
<div id="navbar" class="navbar-collapse collapse">
|
|
<ul class="nav navbar-nav"><li>
|
|
<a href="../reference/index.html">Reference</a>
|
|
</li>
|
|
<li>
|
|
<a href="../news/index.html">Changelog</a>
|
|
</li>
|
|
</ul><ul class="nav navbar-nav navbar-right"><li>
|
|
<a href="https://github.com/rstudio/shiny/" class="external-link">
|
|
<span class="fab fa-github fa-lg"></span>
|
|
|
|
</a>
|
|
</li>
|
|
</ul></div><!--/.nav-collapse -->
|
|
</div><!--/.container -->
|
|
</div><!--/.navbar -->
|
|
|
|
|
|
|
|
</header><div class="row">
|
|
<div class="col-md-9 contents">
|
|
<div class="page-header">
|
|
<h1>Create memory cache (deprecated)</h1>
|
|
<small class="dont-index">Source: <a href="https://github.com/rstudio/shiny/blob/rc-v1.12.1/R/deprecated.R" class="external-link"><code>R/deprecated.R</code></a></small>
|
|
<div class="hidden name"><code>memoryCache.Rd</code></div>
|
|
</div>
|
|
|
|
<div class="ref-description">
|
|
<p>Create memory cache (deprecated)</p>
|
|
</div>
|
|
|
|
<div id="ref-usage">
|
|
<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">memoryCache</span><span class="op">(</span></span>
|
|
<span> max_size <span class="op">=</span> <span class="fl">200</span> <span class="op">*</span> <span class="fl">1024</span><span class="op">^</span><span class="fl">2</span>,</span>
|
|
<span> max_age <span class="op">=</span> <span class="cn">Inf</span>,</span>
|
|
<span> max_n <span class="op">=</span> <span class="cn">Inf</span>,</span>
|
|
<span> evict <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"lru"</span>, <span class="st">"fifo"</span><span class="op">)</span>,</span>
|
|
<span> missing <span class="op">=</span> <span class="fu"><a href="https://r-lib.github.io/fastmap/reference/key_missing.html" class="external-link">key_missing</a></span><span class="op">(</span><span class="op">)</span>,</span>
|
|
<span> exec_missing <span class="op">=</span> <span class="fu">deprecated</span><span class="op">(</span><span class="op">)</span>,</span>
|
|
<span> logfile <span class="op">=</span> <span class="cn">NULL</span></span>
|
|
<span><span class="op">)</span></span></code></pre></div>
|
|
</div>
|
|
|
|
<div id="arguments">
|
|
<h2>Arguments</h2>
|
|
|
|
|
|
<dl><dt id="arg-max-size">max_size<a class="anchor" aria-label="anchor" href="#arg-max-size"></a></dt>
|
|
<dd><p>Maximum size of the cache, in bytes. If the cache exceeds
|
|
this size, cached objects will be removed according to the value of the
|
|
<code>evict</code>. Use <code>Inf</code> for no size limit. The default is 512 megabytes.</p></dd>
|
|
|
|
|
|
<dt id="arg-max-age">max_age<a class="anchor" aria-label="anchor" href="#arg-max-age"></a></dt>
|
|
<dd><p>Maximum age of files in cache before they are evicted, in
|
|
seconds. Use <code>Inf</code> for no age limit.</p></dd>
|
|
|
|
|
|
<dt id="arg-max-n">max_n<a class="anchor" aria-label="anchor" href="#arg-max-n"></a></dt>
|
|
<dd><p>Maximum number of objects in the cache. If the number of objects
|
|
exceeds this value, then cached objects will be removed according to the
|
|
value of <code>evict</code>. Use <code>Inf</code> for no limit of number of items.</p></dd>
|
|
|
|
|
|
<dt id="arg-evict">evict<a class="anchor" aria-label="anchor" href="#arg-evict"></a></dt>
|
|
<dd><p>The eviction policy to use to decide which objects are removed
|
|
when a cache pruning occurs. Currently, <code>"lru"</code> and <code>"fifo"</code> are supported.</p></dd>
|
|
|
|
|
|
<dt id="arg-missing">missing<a class="anchor" aria-label="anchor" href="#arg-missing"></a></dt>
|
|
<dd><p>A value to return when <code>get(key)</code> is called but the key is not
|
|
present in the cache. The default is a <code><a href="https://r-lib.github.io/fastmap/reference/key_missing.html" class="external-link">key_missing()</a></code> object. It is
|
|
actually an expression that is evaluated each time there is a cache miss.
|
|
See section Missing keys for more information.</p></dd>
|
|
|
|
|
|
<dt id="arg-exec-missing">exec_missing<a class="anchor" aria-label="anchor" href="#arg-exec-missing"></a></dt>
|
|
<dd><p>Deprecated.</p></dd>
|
|
|
|
|
|
<dt id="arg-logfile">logfile<a class="anchor" aria-label="anchor" href="#arg-logfile"></a></dt>
|
|
<dd><p>An optional filename or connection object to where logging
|
|
information will be written. To log to the console, use <code><a href="https://rdrr.io/r/base/showConnections.html" class="external-link">stderr()</a></code> or
|
|
<code><a href="https://rdrr.io/r/base/showConnections.html" class="external-link">stdout()</a></code>.</p></dd>
|
|
|
|
</dl></div>
|
|
|
|
</div>
|
|
<div class="col-md-3 hidden-xs hidden-sm" id="pkgdown-sidebar">
|
|
<nav id="toc" data-toggle="toc" class="sticky-top"><h2 data-toc-skip>Contents</h2>
|
|
</nav></div>
|
|
</div>
|
|
|
|
|
|
<footer><div class="copyright">
|
|
<p></p><p>Developed by Winston Chang, Joe Cheng, JJ Allaire, Carson Sievert, Barret Schloerke, Garrick Aden-Buie, Yihui Xie, Jeff Allen, Jonathan McPherson, Alan Dipert, Barbara Borges, Posit Software, PBC.</p>
|
|
</div>
|
|
|
|
<div class="pkgdown">
|
|
<p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.2.0.</p>
|
|
</div>
|
|
|
|
</footer></div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</body></html>
|
|
|