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Broadcast.html
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Broadcast.html
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<!DOCTYPE html>
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<head>
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<title>
Class: Concurrent::Actor::Utils::Broadcast
— Concurrent Ruby
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<span class="title">Broadcast</span>
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<div id="content"><h1>Class: Concurrent::Actor::Utils::Broadcast
</h1>
<div class="box_info">
<dl>
<dt>Inherits:</dt>
<dd>
<span class="inheritName"><span class='object_link'><a href="../RestartingContext.html" title="Concurrent::Actor::RestartingContext (class)">RestartingContext</a></span></span>
<ul class="fullTree">
<li>Object</li>
<li class="next"><span class='object_link'><a href="../AbstractContext.html" title="Concurrent::Actor::AbstractContext (class)">AbstractContext</a></span></li>
<li class="next"><span class='object_link'><a href="../RestartingContext.html" title="Concurrent::Actor::RestartingContext (class)">RestartingContext</a></span></li>
<li class="next">Concurrent::Actor::Utils::Broadcast</li>
</ul>
<a href="#" class="inheritanceTree">show all</a>
</dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>lib-edge/concurrent/actor/utils/broadcast.rb</dd>
</dl>
</div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>Allows to build pub/sub easily.</p>
</div>
</div>
<div class="tags">
<div class="examples">
<p class="tag_title">Examples:</p>
<p class="example_title"><div class='inline'><p>news</p>
</div></p>
<pre class="example code"><code><span class='id identifier rubyid_news_channel'>news_channel</span> <span class='op'>=</span> <span class='const'><span class='object_link'><a href="../../../Concurrent.html" title="Concurrent (module)">Concurrent</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../../Actor.html" title="Concurrent::Actor (module)">Actor</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../Utils.html" title="Concurrent::Actor::Utils (module)">Utils</a></span></span><span class='op'>::</span><span class='const'>Broadcast</span><span class='period'>.</span><span class='id identifier rubyid_spawn'><span class='object_link'><a href="../AbstractContext.html#spawn-class_method" title="Concurrent::Actor::AbstractContext.spawn (method)">spawn</a></span></span> <span class='symbol'>:news</span>
<span class='int'>2</span><span class='period'>.</span><span class='id identifier rubyid_times'>times</span> <span class='kw'>do</span> <span class='op'>|</span><span class='id identifier rubyid_i'>i</span><span class='op'>|</span>
<span class='const'><span class='object_link'><a href="../../../Concurrent.html" title="Concurrent (module)">Concurrent</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../../Actor.html" title="Concurrent::Actor (module)">Actor</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="../Utils.html" title="Concurrent::Actor::Utils (module)">Utils</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="AdHoc.html" title="Concurrent::Actor::Utils::AdHoc (class)">AdHoc</a></span></span><span class='period'>.</span><span class='id identifier rubyid_spawn'><span class='object_link'><a href="../AbstractContext.html#spawn-class_method" title="Concurrent::Actor::AbstractContext.spawn (method)">spawn</a></span></span> <span class='tstring'><span class='tstring_beg'>"</span><span class='tstring_content'>listener-</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_i'>i</span><span class='embexpr_end'>}</span><span class='tstring_end'>"</span></span> <span class='kw'>do</span>
<span class='id identifier rubyid_news_channel'>news_channel</span> <span class='op'><<</span> <span class='symbol'>:subscribe</span>
<span class='tlambda'>-></span> <span class='id identifier rubyid_message'>message</span> <span class='tlambeg'>{</span> <span class='id identifier rubyid_puts'>puts</span> <span class='id identifier rubyid_message'>message</span> <span class='rbrace'>}</span>
<span class='kw'>end</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_news_channel'>news_channel</span> <span class='op'><<</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Ruby rocks!</span><span class='tstring_end'>'</span></span>
<span class='comment'># prints: 'Ruby rocks!' twice</span></code></pre>
</div>
</div>
<h2>
Instance Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#filtered_receivers-instance_method" title="#filtered_receivers (instance method)">#<strong>filtered_receivers</strong> ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'><p>override to define different behaviour, filtering etc.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#initialize-instance_method" title="#initialize (instance method)">#<strong>initialize</strong> ⇒ Broadcast </a>
</span>
<span class="note title constructor">constructor</span>
<span class="summary_desc"><div class='inline'><p>A new instance of Broadcast.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#on_message-instance_method" title="#on_message (instance method)">#<strong>on_message</strong>(message) ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
</ul>
<div id="constructor_details" class="method_details_list">
<h2>Constructor Details</h2>
<div class="method_details first">
<h3 class="signature first" id="initialize-instance_method">
#<strong>initialize</strong> ⇒ <tt><span class='object_link'><a href="" title="Concurrent::Actor::Utils::Broadcast (class)">Broadcast</a></span></tt>
</h3><div class="docstring">
<div class="discussion">
<p>Returns a new instance of Broadcast</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/utils/broadcast.rb', line 22</span>
<span class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span>
<span class='ivar'>@receivers</span> <span class='op'>=</span> <span class='const'><span class='object_link'><a href="../../Set.html" title="Concurrent::Set (class)">Set</a></span></span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
</div>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="filtered_receivers-instance_method">
#<strong>filtered_receivers</strong> ⇒ <tt>undocumented</tt>
</h3><div class="docstring">
<div class="discussion">
<p>override to define different behaviour, filtering etc</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
45
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47</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/utils/broadcast.rb', line 45</span>
<span class='kw'>def</span> <span class='id identifier rubyid_filtered_receivers'>filtered_receivers</span>
<span class='ivar'>@receivers</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="on_message-instance_method">
#<strong>on_message</strong>(message) ⇒ <tt>undocumented</tt>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/utils/broadcast.rb', line 26</span>
<span class='kw'>def</span> <span class='id identifier rubyid_on_message'>on_message</span><span class='lparen'>(</span><span class='id identifier rubyid_message'>message</span><span class='rparen'>)</span>
<span class='kw'>case</span> <span class='id identifier rubyid_message'>message</span>
<span class='kw'>when</span> <span class='symbol'>:subscribe</span>
<span class='kw'>if</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_sender'>sender</span><span class='period'>.</span><span class='id identifier rubyid_is_a?'>is_a?</span> <span class='const'><span class='object_link'><a href="../Reference.html" title="Concurrent::Actor::Reference (class)">Reference</a></span></span>
<span class='ivar'>@receivers</span><span class='period'>.</span><span class='id identifier rubyid_add'>add</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_sender'>sender</span>
<span class='kw'>true</span>
<span class='kw'>else</span>
<span class='kw'>false</span>
<span class='kw'>end</span>
<span class='kw'>when</span> <span class='symbol'>:unsubscribe</span>
<span class='op'>!</span><span class='op'>!</span><span class='ivar'>@receivers</span><span class='period'>.</span><span class='id identifier rubyid_delete'>delete</span><span class='lparen'>(</span><span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_sender'>sender</span><span class='rparen'>)</span>
<span class='kw'>when</span> <span class='symbol'>:subscribed?</span>
<span class='ivar'>@receivers</span><span class='period'>.</span><span class='id identifier rubyid_include?'>include?</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_sender'>sender</span>
<span class='kw'>else</span>
<span class='id identifier rubyid_filtered_receivers'>filtered_receivers</span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='lbrace'>{</span> <span class='op'>|</span><span class='id identifier rubyid_r'>r</span><span class='op'>|</span> <span class='id identifier rubyid_r'>r</span> <span class='op'><<</span> <span class='id identifier rubyid_message'>message</span> <span class='rbrace'>}</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
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