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<title>class Rack::Files::BaseIterator - rack-2.2.10 Documentation</title>
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<h3>Methods</h3>
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<li ><a href="#method-c-new">::new</a>
<li ><a href="#method-i-bytesize">#bytesize</a>
<li ><a href="#method-i-close">#close</a>
<li ><a href="#method-i-each">#each</a>
<li ><a href="#method-i-each_range_part">#each_range_part</a>
<li ><a href="#method-i-multipart-3F">#multipart?</a>
<li ><a href="#method-i-multipart_heading">#multipart_heading</a>
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<main role="main" aria-labelledby="class-Rack::Files::BaseIterator">
<h1 id="class-Rack::Files::BaseIterator" class="class">
class Rack::Files::BaseIterator
</h1>
<section class="description">
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section class="attribute-method-details" class="method-section">
<header>
<h3>Attributes</h3>
</header>
<div id="attribute-i-options" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">options</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-path" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">path</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
<div id="attribute-i-ranges" class="method-detail">
<div class="method-heading attribute-method-heading">
<span class="method-name">ranges</span><span
class="attribute-access-type">[R]</span>
</div>
<div class="method-description">
</div>
</div>
</section>
<section id="public-class-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Class Methods</h3>
</header>
<div id="method-c-new" class="method-detail ">
<div class="method-heading">
<span class="method-name">new</span><span
class="method-args">(path, ranges, options)</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/rack/files.rb, line 126</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">path</span>, <span class="ruby-identifier">ranges</span>, <span class="ruby-identifier">options</span>)
<span class="ruby-ivar">@path</span> = <span class="ruby-identifier">path</span>
<span class="ruby-ivar">@ranges</span> = <span class="ruby-identifier">ranges</span>
<span class="ruby-ivar">@options</span> = <span class="ruby-identifier">options</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Instance Methods</h3>
</header>
<div id="method-i-bytesize" class="method-detail ">
<div class="method-heading">
<span class="method-name">bytesize</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="bytesize-source">
<pre><span class="ruby-comment"># File lib/rack/files.rb, line 146</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">bytesize</span>
<span class="ruby-identifier">size</span> = <span class="ruby-identifier">ranges</span>.<span class="ruby-identifier">inject</span>(<span class="ruby-value">0</span>) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">sum</span>, <span class="ruby-identifier">range</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">sum</span> <span class="ruby-operator">+=</span> <span class="ruby-identifier">multipart_heading</span>(<span class="ruby-identifier">range</span>).<span class="ruby-identifier">bytesize</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">multipart?</span>
<span class="ruby-identifier">sum</span> <span class="ruby-operator">+=</span> <span class="ruby-identifier">range</span>.<span class="ruby-identifier">size</span>
<span class="ruby-keyword">end</span>
<span class="ruby-identifier">size</span> <span class="ruby-operator">+=</span> <span class="ruby-node">"\r\n--#{MULTIPART_BOUNDARY}--\r\n"</span>.<span class="ruby-identifier">bytesize</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">multipart?</span>
<span class="ruby-identifier">size</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<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">
<div class="method-source-code" id="close-source">
<pre><span class="ruby-comment"># File lib/rack/files.rb, line 155</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">close</span>; <span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-each" class="method-detail ">
<div class="method-heading">
<span class="method-name">each</span><span
class="method-args">() { |multipart_heading(range)| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="each-source">
<pre><span class="ruby-comment"># File lib/rack/files.rb, line 132</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">each</span>
<span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>(<span class="ruby-identifier">path</span>, <span class="ruby-string">"rb"</span>) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">file</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">ranges</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">range</span><span class="ruby-operator">|</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">multipart_heading</span>(<span class="ruby-identifier">range</span>) <span class="ruby-keyword">if</span> <span class="ruby-identifier">multipart?</span>
<span class="ruby-identifier">each_range_part</span>(<span class="ruby-identifier">file</span>, <span class="ruby-identifier">range</span>) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">part</span><span class="ruby-operator">|</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">part</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">yield</span> <span class="ruby-node">"\r\n--#{MULTIPART_BOUNDARY}--\r\n"</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">multipart?</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
</section>
<section id="private-instance-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Private Instance Methods</h3>
</header>
<div id="method-i-each_range_part" class="method-detail ">
<div class="method-heading">
<span class="method-name">each_range_part</span><span
class="method-args">(file, range) { |part| ... }</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="each_range_part-source">
<pre><span class="ruby-comment"># File lib/rack/files.rb, line 173</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">each_range_part</span>(<span class="ruby-identifier">file</span>, <span class="ruby-identifier">range</span>)
<span class="ruby-identifier">file</span>.<span class="ruby-identifier">seek</span>(<span class="ruby-identifier">range</span>.<span class="ruby-identifier">begin</span>)
<span class="ruby-identifier">remaining_len</span> = <span class="ruby-identifier">range</span>.<span class="ruby-identifier">end</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">range</span>.<span class="ruby-identifier">begin</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>
<span class="ruby-keyword">while</span> <span class="ruby-identifier">remaining_len</span> <span class="ruby-operator">></span> <span class="ruby-value">0</span>
<span class="ruby-identifier">part</span> = <span class="ruby-identifier">file</span>.<span class="ruby-identifier">read</span>([<span class="ruby-value">8192</span>, <span class="ruby-identifier">remaining_len</span>].<span class="ruby-identifier">min</span>)
<span class="ruby-keyword">break</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">part</span>
<span class="ruby-identifier">remaining_len</span> <span class="ruby-operator">-=</span> <span class="ruby-identifier">part</span>.<span class="ruby-identifier">length</span>
<span class="ruby-keyword">yield</span> <span class="ruby-identifier">part</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-multipart-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">multipart?</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="multipart-3F-source">
<pre><span class="ruby-comment"># File lib/rack/files.rb, line 159</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">multipart?</span>
<span class="ruby-identifier">ranges</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">></span> <span class="ruby-value">1</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
</div>
<div id="method-i-multipart_heading" class="method-detail ">
<div class="method-heading">
<span class="method-name">multipart_heading</span><span
class="method-args">(range)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code" id="multipart_heading-source">
<pre><span class="ruby-comment"># File lib/rack/files.rb, line 163</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">multipart_heading</span>(<span class="ruby-identifier">range</span>)
<span class="ruby-identifier"><<-EOF</span>
<span class="ruby-value">\r
--#{MULTIPART_BOUNDARY}\r
Content-Type: #{options[:mime_type]}\r
Content-Range: bytes #{range.begin}-#{range.end}/#{options[:size]}\r
\r
</span><span class="ruby-identifier">EOF</span>
<span class="ruby-keyword">end</span></pre>
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