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Termination.html
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Termination.html
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<!DOCTYPE html>
<html>
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<meta charset="utf-8">
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Class: Concurrent::Actor::Behaviour::Termination
— Concurrent Ruby
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<span class="title">Termination</span>
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<div id="content"><h1>Class: Concurrent::Actor::Behaviour::Termination
</h1>
<div class="box_info">
<dl>
<dt>Inherits:</dt>
<dd>
<span class="inheritName"><span class='object_link'><a href="Abstract.html" title="Concurrent::Actor::Behaviour::Abstract (class)">Abstract</a></span></span>
<ul class="fullTree">
<li>Object</li>
<li class="next"><span class='object_link'><a href="Abstract.html" title="Concurrent::Actor::Behaviour::Abstract (class)">Abstract</a></span></li>
<li class="next">Concurrent::Actor::Behaviour::Termination</li>
</ul>
<a href="#" class="inheritanceTree">show all</a>
</dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>lib-edge/concurrent/actor/behaviour/termination.rb</dd>
</dl>
</div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<div class="note notetag">
<strong>Note:</strong>
<div class='inline'><p>Actor rejects envelopes when terminated.</p>
</div>
</div>
<div class="note notetag">
<strong>Note:</strong>
<div class='inline'><p>TODO missing example</p>
</div>
</div>
<p>Handles actor termination. Waits until all its children are terminated,
can be configured on behaviour initialization.</p>
</div>
</div>
<div class="tags">
</div>
<h2>Instance Attribute Summary <small><a href="#" class="summary_toggle">collapse</a></small></h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#terminated-instance_method" title="#terminated (instance method)">#<strong>terminated</strong> ⇒ undocumented </a>
</span>
<span class="note title readonly">readonly</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
</ul>
<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="#initialize-instance_method" title="#initialize (instance method)">#<strong>initialize</strong>(core, subsequent, core_options, trapping = false, terminate_children = true) ⇒ Termination </a>
</span>
<span class="note title constructor">constructor</span>
<span class="summary_desc"><div class='inline'><p>A new instance of Termination.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#on_envelope-instance_method" title="#on_envelope (instance method)">#<strong>on_envelope</strong>(envelope) ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#terminate!-instance_method" title="#terminate! (instance method)">#<strong>terminate!</strong>(reason = nil, envelope = nil) ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'><p>Terminates the actor.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#terminated%3F-instance_method" title="#terminated? (instance method)">#<strong>terminated?</strong> ⇒ true, false </a>
</span>
<span class="summary_desc"><div class='inline'><p>If actor is terminated.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#trapping=-instance_method" title="#trapping= (instance method)">#<strong>trapping=</strong>(val) ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#trapping%3F-instance_method" title="#trapping? (instance method)">#<strong>trapping?</strong> ⇒ Boolean </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>(core, subsequent, core_options, trapping = false, terminate_children = true) ⇒ <tt><span class='object_link'><a href="" title="Concurrent::Actor::Behaviour::Termination (class)">Termination</a></span></tt>
</h3><div class="docstring">
<div class="discussion">
<p>Returns a new instance of Termination</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/behaviour/termination.rb', line 15</span>
<span class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span><span class='lparen'>(</span><span class='id identifier rubyid_core'>core</span><span class='comma'>,</span> <span class='id identifier rubyid_subsequent'>subsequent</span><span class='comma'>,</span> <span class='id identifier rubyid_core_options'>core_options</span><span class='comma'>,</span> <span class='id identifier rubyid_trapping'>trapping</span> <span class='op'>=</span> <span class='kw'>false</span><span class='comma'>,</span> <span class='id identifier rubyid_terminate_children'>terminate_children</span> <span class='op'>=</span> <span class='kw'>true</span><span class='rparen'>)</span>
<span class='kw'>super</span> <span class='id identifier rubyid_core'>core</span><span class='comma'>,</span> <span class='id identifier rubyid_subsequent'>subsequent</span><span class='comma'>,</span> <span class='id identifier rubyid_core_options'>core_options</span>
<span class='ivar'>@terminated</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="../../Promises.html" title="Concurrent::Promises (module)">Promises</a></span></span><span class='period'>.</span><span class='id identifier rubyid_resolvable_future'><span class='object_link'><a href="../../Promises/FactoryMethods.html#resolvable_future-instance_method" title="Concurrent::Promises::FactoryMethods#resolvable_future (method)">resolvable_future</a></span></span>
<span class='ivar'>@public_terminated</span> <span class='op'>=</span> <span class='ivar'>@terminated</span><span class='period'>.</span><span class='id identifier rubyid_with_hidden_resolvable'>with_hidden_resolvable</span>
<span class='ivar'>@trapping</span> <span class='op'>=</span> <span class='id identifier rubyid_trapping'>trapping</span>
<span class='ivar'>@terminate_children</span> <span class='op'>=</span> <span class='id identifier rubyid_terminate_children'>terminate_children</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
</div>
<div id="instance_attr_details" class="attr_details">
<h2>Instance Attribute Details</h2>
<span id=""></span>
<div class="method_details first">
<h3 class="signature first" id="terminated-instance_method">
#<strong>terminated</strong> ⇒ <tt>undocumented</tt> <span class="extras">(readonly)</span>
</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/behaviour/termination.rb', line 13</span>
<span class='kw'>def</span> <span class='id identifier rubyid_terminated'>terminated</span>
<span class='ivar'>@terminated</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="on_envelope-instance_method">
#<strong>on_envelope</strong>(envelope) ⇒ <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/behaviour/termination.rb', line 37</span>
<span class='kw'>def</span> <span class='id identifier rubyid_on_envelope'>on_envelope</span><span class='lparen'>(</span><span class='id identifier rubyid_envelope'>envelope</span><span class='rparen'>)</span>
<span class='id identifier rubyid_command'>command</span><span class='comma'>,</span> <span class='id identifier rubyid_reason'>reason</span> <span class='op'>=</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_message'>message</span>
<span class='kw'>case</span> <span class='id identifier rubyid_command'>command</span>
<span class='kw'>when</span> <span class='symbol'>:terminated?</span>
<span class='id identifier rubyid_terminated?'>terminated?</span>
<span class='kw'>when</span> <span class='symbol'>:terminate!</span>
<span class='kw'>if</span> <span class='id identifier rubyid_trapping?'>trapping?</span> <span class='op'>&&</span> <span class='id identifier rubyid_reason'>reason</span> <span class='op'>!=</span> <span class='symbol'>:kill</span>
<span class='id identifier rubyid_pass'>pass</span> <span class='id identifier rubyid_envelope'>envelope</span>
<span class='kw'>else</span>
<span class='id identifier rubyid_terminate!'>terminate!</span> <span class='id identifier rubyid_reason'>reason</span><span class='comma'>,</span> <span class='id identifier rubyid_envelope'>envelope</span>
<span class='kw'>end</span>
<span class='kw'>when</span> <span class='symbol'>:termination_event</span>
<span class='ivar'>@public_terminated</span>
<span class='kw'>else</span>
<span class='kw'>if</span> <span class='id identifier rubyid_terminated?'>terminated?</span>
<span class='id identifier rubyid_reject_envelope'>reject_envelope</span> <span class='id identifier rubyid_envelope'>envelope</span>
<span class='const'><span class='object_link'><a href="../Behaviour.html#MESSAGE_PROCESSED-constant" title="Concurrent::Actor::Behaviour::MESSAGE_PROCESSED (constant)">MESSAGE_PROCESSED</a></span></span>
<span class='kw'>else</span>
<span class='id identifier rubyid_pass'>pass</span> <span class='id identifier rubyid_envelope'>envelope</span>
<span class='kw'>end</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="terminate!-instance_method">
#<strong>terminate!</strong>(reason = nil, envelope = nil) ⇒ <tt>undocumented</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Terminates the actor. Any Envelope received after termination is rejected.
Terminates all its children, does not wait until they are terminated.</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
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</td>
<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/behaviour/termination.rb', line 62</span>
<span class='kw'>def</span> <span class='id identifier rubyid_terminate!'>terminate!</span><span class='lparen'>(</span><span class='id identifier rubyid_reason'>reason</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='comma'>,</span> <span class='id identifier rubyid_envelope'>envelope</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='rparen'>)</span>
<span class='kw'>return</span> <span class='kw'>true</span> <span class='kw'>if</span> <span class='id identifier rubyid_terminated?'>terminated?</span>
<span class='id identifier rubyid_self_termination'>self_termination</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="../../Promises.html" title="Concurrent::Promises (module)">Promises</a></span></span><span class='period'>.</span><span class='id identifier rubyid_resolved_future'><span class='object_link'><a href="../../Promises/FactoryMethods.html#resolved_future-instance_method" title="Concurrent::Promises::FactoryMethods#resolved_future (method)">resolved_future</a></span></span><span class='lparen'>(</span><span class='id identifier rubyid_reason'>reason</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span><span class='comma'>,</span> <span class='id identifier rubyid_reason'>reason</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</span> <span class='op'>||</span> <span class='kw'>nil</span><span class='comma'>,</span> <span class='id identifier rubyid_reason'>reason</span><span class='rparen'>)</span>
<span class='id identifier rubyid_all_terminations'>all_terminations</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ivar'>@terminate_children</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="../../Promises.html" title="Concurrent::Promises (module)">Promises</a></span></span><span class='period'>.</span><span class='id identifier rubyid_zip'>zip</span><span class='lparen'>(</span><span class='op'>*</span><span class='id identifier rubyid_children'>children</span><span class='period'>.</span><span class='id identifier rubyid_map'>map</span> <span class='lbrace'>{</span> <span class='op'>|</span><span class='id identifier rubyid_ch'>ch</span><span class='op'>|</span> <span class='id identifier rubyid_ch'>ch</span><span class='period'>.</span><span class='id identifier rubyid_ask'>ask</span><span class='lparen'>(</span><span class='symbol'>:terminate!</span><span class='rparen'>)</span> <span class='rbrace'>}</span><span class='comma'>,</span> <span class='id identifier rubyid_self_termination'>self_termination</span><span class='rparen'>)</span>
<span class='kw'>else</span>
<span class='id identifier rubyid_self_termination'>self_termination</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_all_terminations'>all_terminations</span><span class='period'>.</span><span class='id identifier rubyid_chain_resolvable'>chain_resolvable</span><span class='lparen'>(</span><span class='ivar'>@terminated</span><span class='rparen'>)</span>
<span class='kw'>if</span> <span class='id identifier rubyid_envelope'>envelope</span> <span class='op'>&&</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_future'>future</span>
<span class='id identifier rubyid_all_terminations'>all_terminations</span><span class='period'>.</span><span class='id identifier rubyid_chain'>chain</span> <span class='lbrace'>{</span> <span class='op'>|</span><span class='id identifier rubyid_fulfilled'>fulfilled</span><span class='comma'>,</span> <span class='id identifier rubyid__'>_</span><span class='comma'>,</span> <span class='id identifier rubyid_t_reason'>t_reason</span><span class='op'>|</span> <span class='id identifier rubyid_envelope'>envelope</span><span class='period'>.</span><span class='id identifier rubyid_future'>future</span><span class='period'>.</span><span class='id identifier rubyid_resolve'>resolve</span> <span class='id identifier rubyid_fulfilled'>fulfilled</span><span class='comma'>,</span> <span class='kw'>true</span><span class='comma'>,</span> <span class='id identifier rubyid_t_reason'>t_reason</span> <span class='rbrace'>}</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_broadcast'>broadcast</span><span class='lparen'>(</span><span class='kw'>true</span><span class='comma'>,</span> <span class='lbracket'>[</span><span class='symbol'>:terminated</span><span class='comma'>,</span> <span class='id identifier rubyid_reason'>reason</span><span class='rbracket'>]</span><span class='rparen'>)</span> <span class='comment'># TODO do not end up in Dead Letter Router
</span> <span class='id identifier rubyid_parent'>parent</span> <span class='op'><<</span> <span class='symbol'>:remove_child</span> <span class='kw'>if</span> <span class='id identifier rubyid_parent'>parent</span>
<span class='const'><span class='object_link'><a href="../Behaviour.html#MESSAGE_PROCESSED-constant" title="Concurrent::Actor::Behaviour::MESSAGE_PROCESSED (constant)">MESSAGE_PROCESSED</a></span></span>
<span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="terminated?-instance_method">
#<strong>terminated?</strong> ⇒ <tt>true</tt>, <tt>false</tt>
</h3><div class="docstring">
<div class="discussion">
<div class="note notetag">
<strong>Note:</strong>
<div class='inline'><p>Actor rejects envelopes when terminated.</p>
</div>
</div>
<p>Returns if actor is terminated</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>true</tt>, <tt>false</tt>)</span>
—
<div class='inline'><p>if actor is terminated</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="lines">
25
26
27</pre>
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<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/behaviour/termination.rb', line 25</span>
<span class='kw'>def</span> <span class='id identifier rubyid_terminated?'>terminated?</span>
<span class='ivar'>@terminated</span><span class='period'>.</span><span class='id identifier rubyid_resolved?'>resolved?</span>
<span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="trapping=-instance_method">
#<strong>trapping=</strong>(val) ⇒ <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">
33
34
35</pre>
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<td>
<pre class="code"><span class="info file"># File 'lib-edge/concurrent/actor/behaviour/termination.rb', line 33</span>
<span class='kw'>def</span> <span class='id identifier rubyid_trapping='>trapping=</span><span class='lparen'>(</span><span class='id identifier rubyid_val'>val</span><span class='rparen'>)</span>
<span class='ivar'>@trapping</span> <span class='op'>=</span> <span class='op'>!</span><span class='op'>!</span><span class='id identifier rubyid_val'>val</span>
<span class='kw'>end</span></pre>
</td>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="trapping?-instance_method">
#<strong>trapping?</strong> ⇒ <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
</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/behaviour/termination.rb', line 29</span>
<span class='kw'>def</span> <span class='id identifier rubyid_trapping?'>trapping?</span>
<span class='ivar'>@trapping</span>
<span class='kw'>end</span></pre>
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