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297 lines
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297 lines
9.0 KiB
<!DOCTYPE html>
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<title>twotier - The Go Programming Language</title>
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...
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<div id="topbar" class="wide"><div class="container">
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<div class="top-heading" id="heading-wide"><a href="http://localhost:6060/">The Go Programming Language</a></div>
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<div class="top-heading" id="heading-narrow"><a href="http://localhost:6060/">Go</a></div>
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<h1>Package twotier</h1>
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<div id="nav"></div>
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<!--
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Copyright 2009 The Go Authors. All rights reserved.
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file.
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-->
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<!--
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Note: Static (i.e., not template-generated) href and id
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attributes start with "pkg-" to make it impossible for
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them to conflict with generated attributes (some of which
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correspond to Go identifiers).
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-->
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<script type='text/javascript'>
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document.ANALYSIS_DATA = null;
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document.CALLGRAPH = null;
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</script>
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<div id="short-nav">
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<dl>
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<dd><code>import "github.com/die-net/lrucache/twotier"</code></dd>
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</dl>
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<dl>
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<dd><a href="index.html#pkg-overview" class="overviewLink">Overview</a></dd>
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<dd><a href="index.html#pkg-index" class="indexLink">Index</a></dd>
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</dl>
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</div>
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<!-- The package's Name is printed as title by the top-level template -->
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<div id="pkg-overview" class="toggleVisible">
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<div class="collapsed">
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<h2 class="toggleButton" title="Click to show Overview section">Overview ▹</h2>
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</div>
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<div class="expanded">
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<h2 class="toggleButton" title="Click to hide Overview section">Overview ▾</h2>
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<p>
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Package twotier provides a wrapper for two httpcache.Cache instances,
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allowing you to use both a small and fast cache for popular objects and
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fall back to a larger and slower cache for less popular ones.
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</p>
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</div>
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</div>
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<div id="pkg-index" class="toggleVisible">
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<div class="collapsed">
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<h2 class="toggleButton" title="Click to show Index section">Index ▹</h2>
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</div>
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<div class="expanded">
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<h2 class="toggleButton" title="Click to hide Index section">Index ▾</h2>
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<!-- Table of contents for API; must be named manual-nav to turn off auto nav. -->
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<div id="manual-nav">
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<dl>
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<dd><a href="index.html#TwoTier">type TwoTier</a></dd>
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<dd> <a href="index.html#New">func New(first httpcache.Cache, second httpcache.Cache) *TwoTier</a></dd>
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<dd> <a href="index.html#TwoTier.Delete">func (c *TwoTier) Delete(key string)</a></dd>
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<dd> <a href="index.html#TwoTier.Get">func (c *TwoTier) Get(key string) ([]byte, bool)</a></dd>
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<dd> <a href="index.html#TwoTier.Set">func (c *TwoTier) Set(key string, value []byte)</a></dd>
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</dl>
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</div><!-- #manual-nav -->
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<h4>Package files</h4>
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<p>
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<span style="font-size:90%">
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<a href="http://localhost:6060/src/github.com/die-net/lrucache/twotier/twotier.go">twotier.go</a>
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</span>
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</p>
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</div><!-- .expanded -->
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</div><!-- #pkg-index -->
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<div id="pkg-callgraph" class="toggle" style="display: none">
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<div class="collapsed">
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<h2 class="toggleButton" title="Click to show Internal Call Graph section">Internal call graph ▹</h2>
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</div> <!-- .expanded -->
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<div class="expanded">
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<h2 class="toggleButton" title="Click to hide Internal Call Graph section">Internal call graph ▾</h2>
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<p>
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In the call graph viewer below, each node
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is a function belonging to this package
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and its children are the functions it
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calls—perhaps dynamically.
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</p>
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<p>
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The root nodes are the entry points of the
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package: functions that may be called from
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outside the package.
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There may be non-exported or anonymous
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functions among them if they are called
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dynamically from another package.
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</p>
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<p>
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Click a node to visit that function's source code.
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From there you can visit its callers by
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clicking its declaring <code>func</code>
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token.
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</p>
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<p>
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Functions may be omitted if they were
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determined to be unreachable in the
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particular programs or tests that were
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analyzed.
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</p>
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<!-- Zero means show all package entry points. -->
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<ul style="margin-left: 0.5in" id="callgraph-0" class="treeview"></ul>
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</div>
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</div> <!-- #pkg-callgraph -->
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<h2 id="TwoTier">type <a href="http://localhost:6060/src/github.com/die-net/lrucache/twotier/twotier.go?s=426:497#L2">TwoTier</a></h2>
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<pre>type TwoTier struct {
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<span class="comment">// contains filtered or unexported fields</span>
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}</pre>
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<p>
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TwoTier creates a two-tiered cache out of two httpcache.Cache instances.
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Reads are favored from first, and writes affect both first and second.
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</p>
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<h3 id="New">func <a href="http://localhost:6060/src/github.com/die-net/lrucache/twotier/twotier.go?s=564:628#L8">New</a></h3>
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<pre>func New(first <a href="../../../gregjones/httpcache/index.html">httpcache</a>.<a href="../../../gregjones/httpcache/index.html#Cache">Cache</a>, second <a href="../../../gregjones/httpcache/index.html">httpcache</a>.<a href="../../../gregjones/httpcache/index.html#Cache">Cache</a>) *<a href="index.html#TwoTier">TwoTier</a></pre>
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<p>
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New creates a TwoTier. Both first and second must be non-nil.
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</p>
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<h3 id="TwoTier.Delete">func (*TwoTier) <a href="http://localhost:6060/src/github.com/die-net/lrucache/twotier/twotier.go?s=1577:1613#L44">Delete</a></h3>
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<pre>func (c *<a href="index.html#TwoTier">TwoTier</a>) Delete(key <a href="../../../../builtin/index.html#string">string</a>)</pre>
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<p>
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Delete removes the value associated with a key from both the first and
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second tier caches.
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</p>
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<h3 id="TwoTier.Get">func (*TwoTier) <a href="http://localhost:6060/src/github.com/die-net/lrucache/twotier/twotier.go?s=990:1038#L19">Get</a></h3>
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<pre>func (c *<a href="index.html#TwoTier">TwoTier</a>) Get(key <a href="../../../../builtin/index.html#string">string</a>) ([]<a href="../../../../builtin/index.html#byte">byte</a>, <a href="../../../../builtin/index.html#bool">bool</a>)</pre>
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<p>
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Get returns the []byte representation of a cached response and a bool set
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to true if the key was found. It tries the first tier cache, and if
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that's not successful, copies the result from the second tier into the
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first tier.
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</p>
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<h3 id="TwoTier.Set">func (*TwoTier) <a href="http://localhost:6060/src/github.com/die-net/lrucache/twotier/twotier.go?s=1380:1427#L37">Set</a></h3>
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<pre>func (c *<a href="index.html#TwoTier">TwoTier</a>) Set(key <a href="../../../../builtin/index.html#string">string</a>, value []<a href="../../../../builtin/index.html#byte">byte</a>)</pre>
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<p>
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Set stores the []byte representation of a response for a given key into
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the second tier cache, and deletes the cache entry from the first tier
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cache.
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</p>
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Creative Commons Attribution 3.0 License,
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