| 1 | <!DOCTYPE html> <html> <head> <title>LoggableIterator.coffee</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="docco.css" /> </head> <body> <div id="container"> <div id="background"></div> <div id="jump_to"> Jump To … <div id="jump_wrapper"> <div id="jump_page"> <a class="source" href="ByteIterable.html"> ByteIterable.coffee </a> <a class="source" href="ByteIterator.html"> ByteIterator.coffee </a> <a class="source" href="ArrayByteIterable.html"> ArrayByteIterable.coffee </a> <a class="source" href="ByteIterableBase.html"> ByteIterableBase.coffee </a> <a class="source" href="ByteIterableUtil.html"> ByteIterableUtil.coffee </a> <a class="source" href="LightOutputStream.html"> LightOutputStream.coffee </a> <a class="source" href="StoreConfiguration.html"> StoreConfiguration.coffee </a> <a class="source" href="Reader.html"> Reader.coffee </a> <a class="source" href="Writer.html"> Writer.coffee </a> <a class="source" href="List.html"> List.coffee </a> <a class="source" href="ListNode.html"> ListNode.coffee </a> <a class="source" href="Cursor.html"> Cursor.coffee </a> <a class="source" href="DatabaseRoot.html"> DatabaseRoot.coffee </a> <a class="source" href="Environment.html"> Environment.coffee </a> <a class="source" href="EnvironmentConfig.html"> EnvironmentConfig.coffee </a> <a class="source" href="Store.html"> Store.coffee </a> <a class="source" href="Transaction.html"> Transaction.coffee </a> <a class="source" href="Addr64.html"> Addr64.coffee </a> <a class="source" href="DataIterator.html"> DataIterator.coffee </a> <a class="source" href="Log.html"> Log.coffee </a> <a class="source" href="LogCache.html"> LogCache.coffee </a> <a class="source" href="LogConfig.html"> LogConfig.coffee </a> <a class="source" href="LogUtil.html"> LogUtil.coffee </a> <a class="source" href="Loggable.html"> Loggable.coffee </a> <a class="source" href="LoggableFactory.html"> LoggableFactory.coffee </a> <a class="source" href="LoggableIterator.html"> LoggableIterator.coffee </a> <a class="source" href="LoggableToWrite.html"> LoggableToWrite.coffee </a> <a class="source" href="NullLoggable.html"> NullLoggable.coffee </a> <a class="source" href="RandomAccessByteIterable.html"> RandomAccessByteIterable.coffee </a> <a class="source" href="RandomAccessLoggable.html"> RandomAccessLoggable.coffee </a> <a class="source" href="RandomAccessLoggableIterator.html"> RandomAccessLoggableIterator.coffee </a> <a class="source" href="StackList.html"> StackList.coffee </a> <a class="source" href="CompoundByteIterable.html"> CompoundByteIterable.coffee </a> <a class="source" href="CompoundByteIteratorBase.html"> CompoundByteIteratorBase.coffee </a> <a class="source" href="CompressedUnsignedLongByteIterable.html"> CompressedUnsignedLongByteIterable.coffee </a> <a class="source" href="FixedLengthByteIterable.html"> FixedLengthByteIterable.coffee </a> </div> </div> </div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> LoggableIterator.coffee </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1">¶</a> </div> </td> <td class="code"> <div class="highlight"><pre><span class="nv">EventEmitter = </span><span class="p">(</span><span class="nx">require</span> <span class="s1">'events'</span><span class="p">).</span><span class="nx">EventEmitter</span>
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| 2 | <span class="nv">NullLoggable = </span><span class="p">(</span><span class="nx">require</span> <span class="s1">'./NullLoggable.coffee'</span><span class="p">).</span><span class="nx">NullLoggable</span>
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| 3 | <span class="nv">Addr64 = </span><span class="p">(</span><span class="nx">require</span> <span class="s1">'./Addr64.coffee'</span><span class="p">).</span><span class="nx">Addr64</span>
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| 4 | <span class="nv">LogUtil = </span><span class="p">(</span><span class="nx">require</span> <span class="s1">'./LogUtil.coffee'</span><span class="p">).</span><span class="nx">LogUtil</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2">¶</a> </div> <p>This class iterates over Loggables. Stops at the end of log or
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| 5 | on the file hole.</p> </td> <td class="code"> <div class="highlight"><pre><span class="k">class</span> <span class="nx">LoggableIterator</span> <span class="k">extends</span> <span class="nx">EventEmitter</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3">¶</a> </div> <p>@private</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">log: </span><span class="kc">undefined</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-4">¶</a> </div> <p>@private</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">it: </span><span class="kc">undefined</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-5">¶</a> </div> <p>@private</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">skip_: </span><span class="kc">undefined</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-6">¶</a> </div> <p>Constructor.</p>
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| 6 |
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| 7 | <p>@param log.
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| 8 | @param startAddress.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">@create$Log</span><span class="nv">$Addr64: </span><span class="nf">(log, startAddress, o) -></span>
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| 9 | <span class="k">if</span> <span class="o">!</span><span class="nx">o</span><span class="o">?</span> <span class="k">then</span> <span class="nv">o = </span><span class="k">new</span> <span class="nx">LoggableIterator</span>
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| 10 | <span class="nv">o.log = </span><span class="nx">log</span>
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| 11 | <span class="nv">o.it = </span><span class="nx">log</span><span class="p">.</span><span class="nx">readIteratorFrom$Addr64</span> <span class="nx">startAddress</span>
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| 12 | <span class="nv">o.skip_ = </span><span class="mi">0</span>
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| 13 | <span class="k">return</span> <span class="nx">o</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-7">¶</a> </div> <p>Get next loggable.</p>
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| 14 |
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| 15 | <p>@return next loggable.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">next</span><span class="nv">$emit: </span><span class="nf">() -></span>
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| 16 | <span class="nx">@skip</span><span class="p">()</span>
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| 17 | <span class="nv">onRead = </span><span class="p">(</span><span class="nx">result</span><span class="p">)</span> <span class="o">=></span>
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| 18 | <span class="vi">@skip_ = </span><span class="k">if</span> <span class="p">(</span><span class="nx">NullLoggable</span><span class="p">.</span><span class="nx">isNullLoggable$Loggable</span> <span class="nx">result</span><span class="p">)</span> <span class="k">then</span> <span class="mi">0</span> <span class="k">else</span> <span class="nx">result</span><span class="p">.</span><span class="nx">getDataLength</span><span class="p">()</span>
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| 19 | <span class="nv">addrString = </span><span class="nx">Addr64</span><span class="p">.</span>
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| 20 | <span class="nx">addr64ToString$Addr64$int</span><span class="p">(</span><span class="nx">@it</span><span class="p">.</span><span class="nx">getHighAddress</span><span class="p">(),</span> <span class="nx">LogUtil</span><span class="p">.</span><span class="nx">LOG_NAME_BASE</span><span class="p">)</span>
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| 21 | <span class="nx">@log</span><span class="p">.</span><span class="nx">once</span> <span class="s1">'read'</span> <span class="o">+</span> <span class="nx">addrString</span><span class="p">,</span> <span class="p">(</span><span class="nx">result</span><span class="p">)</span> <span class="o">=></span>
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| 22 | <span class="nx">onRead</span> <span class="nx">result</span>
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| 23 | <span class="nx">@emit</span> <span class="s1">'next'</span><span class="p">,</span> <span class="nx">result</span>
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| 24 | <span class="nv">result = </span><span class="nx">@log</span><span class="p">.</span><span class="nx">read$DataIterator$emit</span> <span class="nx">@it</span>
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| 25 | <span class="k">if</span> <span class="nx">result</span><span class="o">?</span>
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| 26 | <span class="nx">@log</span><span class="p">.</span><span class="nx">removeAllListeners</span> <span class="s1">'read'</span> <span class="o">+</span> <span class="nx">addrString</span>
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| 27 | <span class="nx">onRead</span> <span class="nx">result</span>
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| 28 | <span class="k">return</span> <span class="nx">result</span>
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| 29 | <span class="k">else</span>
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| 30 | <span class="k">return</span> <span class="kc">undefined</span>
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| 31 |
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| 32 | <span class="nv">hasNext: </span><span class="nf">() -></span>
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| 33 | <span class="nx">@skip</span><span class="p">()</span>
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| 34 | <span class="k">return</span> <span class="nx">@it</span><span class="p">.</span><span class="nx">hasNext$emit</span><span class="p">()</span>
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| 35 |
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| 36 | <span class="nv">remove: </span><span class="nf">() -></span>
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| 37 |
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| 38 | <span class="nv">getHighAddress: </span><span class="nf">() -></span>
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| 39 | <span class="k">return</span> <span class="nx">@it</span><span class="p">.</span><span class="nx">getHighAddress</span><span class="p">().</span><span class="nx">plus$int</span> <span class="nx">@skip_</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-8">¶</a> </div> <p>@private</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nv">skip: </span><span class="nf">() -></span>
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| 40 | <span class="k">if</span> <span class="nx">@skip_</span> <span class="o">></span> <span class="mi">0</span>
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| 41 | <span class="nx">@it</span><span class="p">.</span><span class="nx">skip$int</span> <span class="nx">@skip_</span>
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| 42 | <span class="vi">@skip_ = </span><span class="mi">0</span>
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| 43 |
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| 44 | <span class="nv">exports.LoggableIterator = </span><span class="nx">LoggableIterator</span>
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| 45 |
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| 46 | </pre></div> </td> </tr> </tbody> </table> </div> </body> </html> |
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