<!DOCTYPE html> <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> <title>class DbmStore - TeensyMUD 3.0.0 Mud Server</title> <link type="text/css" media="screen" href="./rdoc.css" rel="stylesheet"> <script type="text/javascript"> var rdoc_rel_prefix = "./"; </script> <script type="text/javascript" charset="utf-8" src="./js/jquery.js"></script> <script type="text/javascript" charset="utf-8" src="./js/navigation.js"></script> <script type="text/javascript" charset="utf-8" src="./js/search_index.js"></script> <script type="text/javascript" charset="utf-8" src="./js/search.js"></script> <script type="text/javascript" charset="utf-8" src="./js/searcher.js"></script> <script type="text/javascript" charset="utf-8" src="./js/darkfish.js"></script> <body id="top" class="class"> <nav id="metadata"> <nav id="home-section" class="section"> <h3 class="section-header"> <a href="./index.html">Home</a> <a href="./table_of_contents.html#classes">Classes</a> <a href="./table_of_contents.html#methods">Methods</a> </h3> </nav> <nav id="search-section" class="section project-section" class="initially-hidden"> <form action="#" method="get" accept-charset="utf-8"> <h3 class="section-header"> <input type="text" name="search" placeholder="Search" id="search-field" title="Type to search, Up and Down to navigate, Enter to load"> </h3> </form> <ul id="search-results" class="initially-hidden"></ul> </nav> <div id="file-metadata"> <nav id="file-list-section" class="section"> <h3 class="section-header">Defined In</h3> <ul> <li>lib/storage/dbmstore.rb </ul> </nav> </div> <div id="class-metadata"> <nav id="parent-class-section" class="section"> <h3 class="section-header">Parent</h3> <p class="link"><a href="Store.html">Store</a> </nav> <!-- Method Quickref --> <nav id="method-list-section" class="section"> <h3 class="section-header">Methods</h3> <ul class="link-list"> <li><a href="#method-c-new">::new</a> <li><a href="#method-i-check">#check</a> <li><a href="#method-i-close">#close</a> <li><a href="#method-i-delete">#delete</a> <li><a href="#method-i-each">#each</a> <li><a href="#method-i-get">#get</a> <li><a href="#method-i-inspect">#inspect</a> <li><a href="#method-i-makenoswap">#makenoswap</a> <li><a href="#method-i-makeswap">#makeswap</a> <li><a href="#method-i-mark">#mark</a> <li><a href="#method-i-put">#put</a> <li><a href="#method-i-save">#save</a> <li><a href="#method-i-stats">#stats</a> </ul> </nav> </div> <div id="project-metadata"> <nav id="fileindex-section" class="section project-section"> <h3 class="section-header">Pages</h3> <ul> <li class="file"><a href="./README.html">README</a> <li class="file"><a href="./TML.html">TML</a> </ul> </nav> <nav id="classindex-section" class="section project-section"> <h3 class="section-header">Class and Module Index</h3> <ul class="link-list"> <li><a href="./Farts.html">Farts</a> <li><a href="./Farts/AttributeSyntaxNode.html">Farts::AttributeSyntaxNode</a> <li><a 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href="./SQLite/Database.html">SQLite::Database</a> <li><a href="./TernaryTrie.html">TernaryTrie</a> <li><a href="./TernaryTrie/TNode.html">TernaryTrie::TNode</a> <li><a href="./ASCIICodes.html">ASCIICodes</a> <li><a href="./Acceptor.html">Acceptor</a> <li><a href="./Account.html">Account</a> <li><a href="./BoolExpParser.html">BoolExpParser</a> <li><a href="./CacheEntry.html">CacheEntry</a> <li><a href="./CacheManager.html">CacheManager</a> <li><a href="./CacheStats.html">CacheStats</a> <li><a href="./Character.html">Character</a> <li><a href="./Client.html">Client</a> <li><a href="./Cmd.html">Cmd</a> <li><a href="./ColorFilter.html">ColorFilter</a> <li><a href="./Command.html">Command</a> <li><a href="./Configuration.html">Configuration</a> <li><a href="./Connection.html">Connection</a> <li><a href="./Connector.html">Connector</a> <li><a href="./ConsoleClient.html">ConsoleClient</a> <li><a href="./CursesClient.html">CursesClient</a> <li><a href="./DbmStore.html">DbmStore</a> <li><a href="./DebugFilter.html">DebugFilter</a> <li><a href="./Dumper.html">Dumper</a> <li><a href="./Engine.html">Engine</a> <li><a href="./Event.html">Event</a> <li><a href="./EventManager.html">EventManager</a> <li><a href="./Exit.html">Exit</a> <li><a href="./Filter.html">Filter</a> <li><a href="./GameObject.html">GameObject</a> <li><a href="./GdbmStore.html">GdbmStore</a> <li><a href="./LineIO.html">LineIO</a> <li><a href="./Loader.html">Loader</a> <li><a href="./Log.html">Log</a> <li><a href="./Module.html">Module</a> <li><a href="./Obj.html">Obj</a> <li><a href="./ObjCmd.html">ObjCmd</a> <li><a href="./Object.html">Object</a> <li><a href="./PacketIO.html">PacketIO</a> <li><a href="./ProtocolStack.html">ProtocolStack</a> <li><a href="./Publisher.html">Publisher</a> <li><a href="./Reactor.html">Reactor</a> <li><a href="./Room.html">Room</a> <li><a href="./Root.html">Root</a> <li><a href="./Script.html">Script</a> <li><a href="./SdbmStore.html">SdbmStore</a> <li><a href="./Session.html">Session</a> <li><a href="./SockIO.html">SockIO</a> <li><a href="./Sqlite3Store.html">Sqlite3Store</a> <li><a href="./SqliteStore.html">SqliteStore</a> <li><a href="./Store.html">Store</a> <li><a href="./String.html">String</a> <li><a href="./TelnetCodes.html">TelnetCodes</a> <li><a href="./TelnetFilter.html">TelnetFilter</a> <li><a href="./TerminalFilter.html">TerminalFilter</a> <li><a href="./Timer.html">Timer</a> <li><a href="./Utility.html">Utility</a> <li><a href="./VT100Codes.html">VT100Codes</a> <li><a href="./World.html">World</a> <li><a href="./XmlStore.html">XmlStore</a> <li><a href="./YamlStore.html">YamlStore</a> </ul> </nav> </div> </nav> <div id="documentation"> <h1 class="class">class DbmStore</h1> <div id="description" class="description"> <p>The <a href="SdbmStore.html">SdbmStore</a> class manages access to all object storage.</p> <dl class="rdoc-list label-list"><dt><code>db</code> <dd> <p>is a handle to the database.</p> </dd><dt><code>dbtop</code> <dd> <p>stores the highest id used in the database.</p> </dd><dt><code>cache</code> <dd> <p>is a handle to the cache</p> </dd></dl> </div><!-- description --> <section id="5Buntitled-5D" class="documentation-section"> <!-- Methods --> <section id="public-class-5Buntitled-5D-method-details" class="method-section section"> <h3 class="section-header">Public Class Methods</h3> <div id="method-c-new" class="method-detail "> <div class="method-heading"> <span class="method-name">new</span><span class="method-args">(dbfile)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="new-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 29</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">dbfile</span>) <span class="ruby-keyword">super</span>() <span class="ruby-ivar">@dbfile</span> = <span class="ruby-node">"#{dbfile}"</span> <span class="ruby-comment"># check if database exists and build it if not</span> <span class="ruby-identifier">build_database</span> <span class="ruby-identifier">log</span>.<span class="ruby-identifier">info</span> <span class="ruby-string">"Loading world..."</span> <span class="ruby-comment"># open database and sets @dbtop to highest object id</span> <span class="ruby-ivar">@db</span> = <span class="ruby-constant">DBM</span>.<span class="ruby-identifier">open</span>(<span class="ruby-ivar">@dbfile</span>, <span class="ruby-value">0666</span>) <span class="ruby-ivar">@db</span>.<span class="ruby-identifier">each_key</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">o</span><span class="ruby-operator">|</span> <span class="ruby-ivar">@dbtop</span> = <span class="ruby-identifier">o</span>.<span class="ruby-identifier">to_i</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">o</span>.<span class="ruby-identifier">to_i</span> <span class="ruby-operator">></span> <span class="ruby-ivar">@dbtop</span> <span class="ruby-keyword">end</span> <span class="ruby-ivar">@cache</span> = <span class="ruby-constant">CacheManager</span>.<span class="ruby-identifier">new</span>(<span class="ruby-ivar">@db</span>) <span class="ruby-identifier">log</span>.<span class="ruby-identifier">info</span> <span class="ruby-node">"Database '#{@dbfile}' loaded...highest id = #{@dbtop}."</span> <span class="ruby-comment"># log.debug @db.inspect</span> <span class="ruby-keyword">rescue</span> <span class="ruby-identifier">log</span>.<span class="ruby-identifier">fatal</span> <span class="ruby-identifier">$!</span> <span class="ruby-identifier">raise</span> <span class="ruby-keyword">end</span></pre> </div><!-- new-source --> </div> </div><!-- new-method --> </section><!-- public-class-method-details --> <section id="public-instance-5Buntitled-5D-method-details" class="method-section section"> <h3 class="section-header">Public Instance Methods</h3> <div id="method-i-check" class="method-detail "> <div class="method-heading"> <span class="method-name">check</span><span class="method-args">(oid)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Check if an object is in the database by its id.</p> <dl class="rdoc-list label-list"><dt><code>oid</code> <dd> <p>is the id to use in the search.</p> </dd><dt><code>return</code> <dd> <p>true or false</p> </dd></dl> <div class="method-source-code" id="check-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 94</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">check</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-ivar">@db</span>.<span class="ruby-identifier">has_key?</span> <span class="ruby-identifier">oid</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-keyword">end</span></pre> </div><!-- check-source --> </div> </div><!-- check-method --> <div id="method-i-close" class="method-detail "> <div class="method-heading"> <span class="method-name">close</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Close the database</p> <dl class="rdoc-list label-list"><dt><code>return</code> <dd> <p>Undefined.</p> </dd></dl> <div class="method-source-code" id="close-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 59</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">close</span> <span class="ruby-ivar">@db</span>.<span class="ruby-identifier">close</span> <span class="ruby-keyword">end</span></pre> </div><!-- close-source --> </div> </div><!-- close-method --> <div id="method-i-delete" class="method-detail "> <div class="method-heading"> <span class="method-name">delete</span><span class="method-args">(oid)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Deletes an object from the database.</p> <dl class="rdoc-list label-list"><dt><code>oid</code> <dd> <p>is the id to to be deleted.</p> </dd><dt><code>return</code> <dd> <p>Undefined.</p> </dd></dl> <div class="method-source-code" id="delete-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 80</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">delete</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">delete</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-keyword">end</span></pre> </div><!-- delete-source --> </div> </div><!-- delete-method --> <div id="method-i-each" class="method-detail "> <div class="method-heading"> <span class="method-name">each</span><span class="method-args">() { |get| ... }</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Iterate through all objects This needs to have all the possible keys first. So we need to fetch them from the cache and from the database and and produce a list of unique keys.</p> <dl class="rdoc-list label-list"><dt><code>yield</code> <dd> <p>Each object in database to block of caller.</p> </dd></dl> <div class="method-source-code" id="each-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 124</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">each</span> <span class="ruby-identifier">kys</span> = <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">keys</span> <span class="ruby-ivar">@db</span>.<span class="ruby-identifier">each_key</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">k</span><span class="ruby-operator">|</span> <span class="ruby-identifier">kys</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">k</span>.<span class="ruby-identifier">to_i</span>} <span class="ruby-identifier">kys</span>.<span class="ruby-identifier">uniq!</span> <span class="ruby-identifier">kys</span>.<span class="ruby-identifier">each</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">k</span><span class="ruby-operator">|</span> <span class="ruby-keyword">yield</span> <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">get</span>(<span class="ruby-identifier">k</span>)} <span class="ruby-keyword">end</span></pre> </div><!-- each-source --> </div> </div><!-- each-method --> <div id="method-i-get" class="method-detail "> <div class="method-heading"> <span class="method-name">get</span><span class="method-args">(oid)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Finds an object in the database by its id.</p> <dl class="rdoc-list label-list"><dt><code>oid</code> <dd> <p>is the id to use in the search.</p> </dd><dt><code>return</code> <dd> <p>Handle to the object or nil.</p> </dd></dl> <div class="method-source-code" id="get-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 87</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">get</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">get</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-keyword">end</span></pre> </div><!-- get-source --> </div> </div><!-- get-method --> <div id="method-i-inspect" class="method-detail "> <div class="method-heading"> <span class="method-name">inspect</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>inspect the store cache (only for caches)</p> <dl class="rdoc-list label-list"><dt><code>return</code> <dd> <p>string</p> </dd></dl> <div class="method-source-code" id="inspect-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 65</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">inspect</span> <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">inspect</span> <span class="ruby-keyword">end</span></pre> </div><!-- inspect-source --> </div> </div><!-- inspect-method --> <div id="method-i-makenoswap" class="method-detail "> <div class="method-heading"> <span class="method-name">makenoswap</span><span class="method-args">(oid)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Marks an object nonswappable</p> <dl class="rdoc-list label-list"><dt><code>oid</code> <dd> <p>is the object id</p> </dd><dt><code>return</code> <dd> <p>undefined</p> </dd></dl> <div class="method-source-code" id="makenoswap-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 108</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">makenoswap</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">makenoswap</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-keyword">end</span></pre> </div><!-- makenoswap-source --> </div> </div><!-- makenoswap-method --> <div id="method-i-makeswap" class="method-detail "> <div class="method-heading"> <span class="method-name">makeswap</span><span class="method-args">(oid)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Marks an object swappable</p> <dl class="rdoc-list label-list"><dt><code>oid</code> <dd> <p>is the object id</p> </dd><dt><code>return</code> <dd> <p>undefined</p> </dd></dl> <div class="method-source-code" id="makeswap-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 115</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">makeswap</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">makeswap</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-keyword">end</span></pre> </div><!-- makeswap-source --> </div> </div><!-- makeswap-method --> <div id="method-i-mark" class="method-detail "> <div class="method-heading"> <span class="method-name">mark</span><span class="method-args">(oid)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Marks an object dirty</p> <dl class="rdoc-list label-list"><dt><code>oid</code> <dd> <p>is the id to use in the search.</p> </dd><dt><code>return</code> <dd> <p>undefined</p> </dd></dl> <div class="method-source-code" id="mark-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 101</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">mark</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">mark</span>(<span class="ruby-identifier">oid</span>) <span class="ruby-keyword">end</span></pre> </div><!-- mark-source --> </div> </div><!-- mark-method --> <div id="method-i-put" class="method-detail "> <div class="method-heading"> <span class="method-name">put</span><span class="method-args">(obj)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Adds a new object to the database.</p> <dl class="rdoc-list label-list"><dt><code>obj</code> <dd> <p>is a reference to object to be added</p> </dd><dt><code>return</code> <dd> <p>Undefined.</p> </dd></dl> <div class="method-source-code" id="put-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 72</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">put</span>(<span class="ruby-identifier">obj</span>) <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">put</span>(<span class="ruby-identifier">obj</span>) <span class="ruby-identifier">obj</span> <span class="ruby-comment"># return really should not be checked</span> <span class="ruby-keyword">end</span></pre> </div><!-- put-source --> </div> </div><!-- put-method --> <div id="method-i-save" class="method-detail "> <div class="method-heading"> <span class="method-name">save</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Save the world</p> <dl class="rdoc-list label-list"><dt><code>return</code> <dd> <p>Undefined.</p> </dd></dl> <div class="method-source-code" id="save-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 53</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">save</span> <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">sync</span> <span class="ruby-keyword">end</span></pre> </div><!-- save-source --> </div> </div><!-- save-method --> <div id="method-i-stats" class="method-detail "> <div class="method-heading"> <span class="method-name">stats</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>produces a statistical report of the database</p> <dl class="rdoc-list label-list"><dt><code>return</code> <dd> <p>a string containing the report</p> </dd></dl> <div class="method-source-code" id="stats-source"> <pre><span class="ruby-comment"># File lib/storage/dbmstore.rb, line 133</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">stats</span> <span class="ruby-identifier">stats</span> = <span class="ruby-keyword">super</span> <span class="ruby-identifier">stats</span> <span class="ruby-operator"><<</span> <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">stats</span> <span class="ruby-keyword">end</span></pre> </div><!-- stats-source --> </div> </div><!-- stats-method --> </section><!-- public-instance-method-details --> </section><!-- 5Buntitled-5D --> </div><!-- documentation --> <footer id="validator-badges"> <p><a href="http://validator.w3.org/check/referer">[Validate]</a> <p>Generated by <a href="https://github.com/rdoc/rdoc">RDoc</a> 3.12.1. <p>Generated with the <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish Rdoc Generator</a> 3. </footer>