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Class: Qpid::Proton::Container::ListenTask
&mdash; Qpid Proton Ruby API
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<div id="content"><h1>Class: Qpid::Proton::Container::ListenTask
</h1>
<div class="box_info">
<dl>
<dt>Inherits:</dt>
<dd>
<span class="inheritName"><span class='object_link'><a href="../Listener.html" title="Qpid::Proton::Listener (class)">Listener</a></span></span>
<ul class="fullTree">
<li>Object</li>
<li class="next"><span class='object_link'><a href="../Listener.html" title="Qpid::Proton::Listener (class)">Listener</a></span></li>
<li class="next">Qpid::Proton::Container::ListenTask</li>
</ul>
<a href="#" class="inheritanceTree">show all</a>
</dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>lib/core/container.rb</dd>
</dl>
</div>
<div class="docstring">
<div class="discussion">
</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="#listener-instance_method" title="#listener (instance method)">#<strong>listener</strong> </a>
</span>
<span class="note title readonly">readonly</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
</ul>
<h3 class="inherited">Attributes inherited from <span class='object_link'><a href="../Listener.html" title="Qpid::Proton::Listener (class)">Listener</a></span></h3>
<p class="inherited"><span class='object_link'><a href="../Listener.html#container-instance_method" title="Qpid::Proton::Listener#container (method)">#container</a></span></p>
<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="#can_read%3F-instance_method" title="#can_read? (instance method)">#<strong>can_read?</strong> &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#can_write%3F-instance_method" title="#can_write? (instance method)">#<strong>can_write?</strong> &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#close-instance_method" title="#close (instance method)">#<strong>close</strong>(e = nil) </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Close listener and force immediate close of socket.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#closed%3F-instance_method" title="#closed? (instance method)">#<strong>closed?</strong> &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#closing%3F-instance_method" title="#closing? (instance method)">#<strong>closing?</strong> &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#condition-instance_method" title="#condition (instance method)">#<strong>condition</strong> </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#dispatch-instance_method" title="#dispatch (instance method)">#<strong>dispatch</strong>(method, *args) </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#finished%3F-instance_method" title="#finished? (instance method)">#<strong>finished?</strong> &#x21d2; Boolean </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#initialize-instance_method" title="#initialize (instance method)">#<strong>initialize</strong>(io, handler, container) &#x21d2; ListenTask </a>
</span>
<span class="note title constructor">constructor</span>
<span class="summary_desc"><div class='inline'>
<p>A new instance of ListenTask.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#next_tick-instance_method" title="#next_tick (instance method)">#<strong>next_tick</strong> </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#process-instance_method" title="#process (instance method)">#<strong>process</strong> </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
</ul>
<h3 class="inherited">Methods inherited from <span class='object_link'><a href="../Listener.html" title="Qpid::Proton::Listener (class)">Listener</a></span></h3>
<p class="inherited"><span class='object_link'><a href="../Listener.html#port-instance_method" title="Qpid::Proton::Listener#port (method)">#port</a></span>, <span class='object_link'><a href="../Listener.html#to_io-instance_method" title="Qpid::Proton::Listener#to_io (method)">#to_io</a></span></p>
<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>(io, handler, container) &#x21d2; <tt><span class='object_link'><a href="" title="Qpid::Proton::Container::ListenTask (class)">ListenTask</a></span></tt>
</h3><div class="docstring">
<div class="discussion">
<p>Returns a new instance of ListenTask.</p>
</div>
</div>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 277</span>
<span class='kw'>def</span> <span class='id identifier rubyid_initialize'>initialize</span><span class='lparen'>(</span><span class='id identifier rubyid_io'>io</span><span class='comma'>,</span> <span class='id identifier rubyid_handler'>handler</span><span class='comma'>,</span> <span class='id identifier rubyid_container'>container</span><span class='rparen'>)</span>
<span class='ivar'>@io</span><span class='comma'>,</span> <span class='ivar'>@handler</span> <span class='op'>=</span> <span class='id identifier rubyid_io'>io</span><span class='comma'>,</span> <span class='id identifier rubyid_handler'>handler</span>
<span class='ivar'>@listener</span> <span class='op'>=</span> <span class='const'><span class='object_link'><a href="../Listener.html" title="Qpid::Proton::Listener (class)">Listener</a></span></span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='id identifier rubyid_io'>io</span><span class='comma'>,</span> <span class='id identifier rubyid_container'>container</span><span class='rparen'>)</span>
<span class='id identifier rubyid_env'>env</span> <span class='op'>=</span> <span class='const'>ENV</span><span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>PN_TRACE_EVT</span><span class='tstring_end'>&#39;</span></span><span class='rbracket'>]</span>
<span class='kw'>if</span> <span class='id identifier rubyid_env'>env</span> <span class='op'>&amp;&amp;</span> <span class='lbracket'>[</span><span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>true</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>1</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>yes</span><span class='tstring_end'>&quot;</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>on</span><span class='tstring_end'>&quot;</span></span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_include?'>include?</span><span class='lparen'>(</span><span class='id identifier rubyid_env'>env</span><span class='period'>.</span><span class='id identifier rubyid_downcase'>downcase</span><span class='rparen'>)</span>
<span class='ivar'>@log_prefix</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>[0x</span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_object_id'>object_id</span><span class='period'>.</span><span class='id identifier rubyid_to_s'>to_s</span><span class='lparen'>(</span><span class='int'>16</span><span class='rparen'>)</span><span class='embexpr_end'>}</span><span class='tstring_content'>](PN_LISTENER_</span><span class='tstring_end'>&quot;</span></span>
<span class='kw'>else</span>
<span class='ivar'>@log_prefix</span> <span class='op'>=</span> <span class='kw'>nil</span>
<span class='kw'>end</span>
<span class='id identifier rubyid_dispatch'>dispatch</span><span class='lparen'>(</span><span class='symbol'>:on_open</span><span class='rparen'>)</span><span class='semicolon'>;</span>
<span class='kw'>end</span></pre>
</td>
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</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="listener-instance_method">
#<strong>listener</strong> <span class="extras">(readonly)</span>
</h3><div class="docstring">
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 289</span>
<span class='kw'>def</span> <span class='id identifier rubyid_listener'>listener</span>
<span class='ivar'>@listener</span>
<span class='kw'>end</span></pre>
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</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="can_read?-instance_method">
#<strong>can_read?</strong> &#x21d2; <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>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 313</span>
<span class='kw'>def</span> <span class='id identifier rubyid_can_read?'>can_read?</span><span class='lparen'>(</span><span class='rparen'>)</span> <span class='op'>!</span><span class='id identifier rubyid_finished?'>finished?</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="can_write?-instance_method">
#<strong>can_write?</strong> &#x21d2; <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>
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<pre class="lines">
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<td>
<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 314</span>
<span class='kw'>def</span> <span class='id identifier rubyid_can_write?'>can_write?</span><span class='lparen'>(</span><span class='rparen'>)</span> <span class='kw'>false</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="close-instance_method">
#<strong>close</strong>(e = nil)
</h3><div class="docstring">
<div class="discussion">
<p>Close listener and force immediate close of socket</p>
</div>
</div>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 326</span>
<span class='kw'>def</span> <span class='id identifier rubyid_close'>close</span><span class='lparen'>(</span><span class='id identifier rubyid_e'>e</span><span class='op'>=</span><span class='kw'>nil</span><span class='rparen'>)</span>
<span class='ivar'>@listener</span><span class='period'>.</span><span class='id identifier rubyid_close'>close</span><span class='lparen'>(</span><span class='id identifier rubyid_e'>e</span><span class='rparen'>)</span>
<span class='ivar'>@io</span><span class='period'>.</span><span class='id identifier rubyid_close'>close</span> <span class='kw'>rescue</span> <span class='kw'>nil</span>
<span class='kw'>end</span></pre>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="closed?-instance_method">
#<strong>closed?</strong> &#x21d2; <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>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 292</span>
<span class='kw'>def</span> <span class='id identifier rubyid_closed?'>closed?</span><span class='lparen'>(</span><span class='rparen'>)</span> <span class='ivar'>@io</span><span class='period'>.</span><span class='id identifier rubyid_closed?'>closed?</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
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</table>
</div>
<div class="method_details ">
<h3 class="signature " id="closing?-instance_method">
#<strong>closing?</strong> &#x21d2; <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>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 290</span>
<span class='kw'>def</span> <span class='id identifier rubyid_closing?'>closing?</span><span class='lparen'>(</span><span class='rparen'>)</span> <span class='ivar'>@listener</span><span class='period'>.</span><span class='id identifier rubyid_instance_variable_get'>instance_variable_get</span><span class='lparen'>(</span><span class='symbol'>:@closing</span><span class='rparen'>)</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="condition-instance_method">
#<strong>condition</strong>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
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</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 291</span>
<span class='kw'>def</span> <span class='id identifier rubyid_condition'>condition</span><span class='lparen'>(</span><span class='rparen'>)</span> <span class='ivar'>@listener</span><span class='period'>.</span><span class='id identifier rubyid_instance_variable_get'>instance_variable_get</span><span class='lparen'>(</span><span class='symbol'>:@condition</span><span class='rparen'>)</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
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</div>
<div class="method_details ">
<h3 class="signature " id="dispatch-instance_method">
#<strong>dispatch</strong>(method, *args)
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 317</span>
<span class='kw'>def</span> <span class='id identifier rubyid_dispatch'>dispatch</span><span class='lparen'>(</span><span class='id identifier rubyid_method'>method</span><span class='comma'>,</span> <span class='op'>*</span><span class='id identifier rubyid_args'>args</span><span class='rparen'>)</span>
<span class='comment'># TODO aconway 2017-11-27: better logging
</span> <span class='const'>STDERR</span><span class='period'>.</span><span class='id identifier rubyid_puts'>puts</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='embexpr_beg'>#{</span><span class='ivar'>@log_prefix</span><span class='embexpr_end'>}</span><span class='embexpr_beg'>#{</span><span class='lparen'>(</span><span class='lbracket'>[</span><span class='id identifier rubyid_method'>method</span><span class='lbracket'>[</span><span class='int'>3</span><span class='op'>..</span><span class='op'>-</span><span class='int'>1</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_upcase'>upcase</span><span class='rbracket'>]</span><span class='op'>+</span><span class='id identifier rubyid_args'>args</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_join'>join</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>, </span><span class='tstring_end'>&#39;</span></span><span class='embexpr_end'>}</span><span class='tstring_content'>)</span><span class='tstring_end'>&quot;</span></span> <span class='kw'>if</span> <span class='ivar'>@log_prefix</span>
<span class='ivar'>@handler</span><span class='period'>.</span><span class='id identifier rubyid___send__'>__send__</span><span class='lparen'>(</span><span class='id identifier rubyid_method'>method</span><span class='comma'>,</span> <span class='kw'>self</span><span class='comma'>,</span> <span class='op'>*</span><span class='id identifier rubyid_args'>args</span><span class='rparen'>)</span> <span class='kw'>if</span> <span class='ivar'>@handler</span> <span class='op'>&amp;&amp;</span> <span class='ivar'>@handler</span><span class='period'>.</span><span class='id identifier rubyid_respond_to?'>respond_to?</span><span class='lparen'>(</span><span class='id identifier rubyid_method'>method</span><span class='rparen'>)</span>
<span class='kw'>end</span></pre>
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</div>
<div class="method_details ">
<h3 class="signature " id="finished?-instance_method">
#<strong>finished?</strong> &#x21d2; <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>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 315</span>
<span class='kw'>def</span> <span class='id identifier rubyid_finished?'>finished?</span><span class='lparen'>(</span><span class='rparen'>)</span> <span class='id identifier rubyid_closed?'>closed?</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="next_tick-instance_method">
#<strong>next_tick</strong>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
<div class="tags">
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 323</span>
<span class='kw'>def</span> <span class='id identifier rubyid_next_tick'>next_tick</span><span class='lparen'>(</span><span class='rparen'>)</span> <span class='kw'>nil</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
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</table>
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<div class="method_details ">
<h3 class="signature " id="process-instance_method">
#<strong>process</strong>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
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<pre class="code"><span class="info file"># File 'lib/core/container.rb', line 294</span>
<span class='kw'>def</span> <span class='id identifier rubyid_process'>process</span>
<span class='kw'>return</span> <span class='kw'>if</span> <span class='id identifier rubyid_closed?'>closed?</span>
<span class='kw'>unless</span> <span class='id identifier rubyid_closing?'>closing?</span>
<span class='kw'>begin</span>
<span class='kw'>return</span> <span class='ivar'>@io</span><span class='period'>.</span><span class='id identifier rubyid_accept'>accept</span><span class='comma'>,</span> <span class='id identifier rubyid_dispatch'>dispatch</span><span class='lparen'>(</span><span class='symbol'>:on_accept</span><span class='rparen'>)</span>
<span class='kw'>rescue</span> <span class='const'>IO</span><span class='op'>::</span><span class='const'>WaitReadable</span><span class='comma'>,</span> <span class='const'>Errno</span><span class='op'>::</span><span class='const'>EINTR</span>
<span class='kw'>rescue</span> <span class='const'>StandardError</span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_e'>e</span>
<span class='ivar'>@listener</span><span class='period'>.</span><span class='id identifier rubyid_close'>close</span><span class='lparen'>(</span><span class='id identifier rubyid_e'>e</span><span class='rparen'>)</span>
<span class='kw'>end</span>
<span class='kw'>end</span>
<span class='kw'>ensure</span>
<span class='kw'>if</span> <span class='id identifier rubyid_closing?'>closing?</span>
<span class='ivar'>@io</span><span class='period'>.</span><span class='id identifier rubyid_close'>close</span> <span class='kw'>rescue</span> <span class='kw'>nil</span>
<span class='ivar'>@listener</span><span class='period'>.</span><span class='id identifier rubyid_instance_variable_set'>instance_variable_set</span><span class='lparen'>(</span><span class='symbol'>:@closed</span><span class='comma'>,</span> <span class='kw'>true</span><span class='rparen'>)</span>
<span class='id identifier rubyid_dispatch'>dispatch</span><span class='lparen'>(</span><span class='symbol'>:on_error</span><span class='comma'>,</span> <span class='id identifier rubyid_condition'>condition</span><span class='rparen'>)</span> <span class='kw'>if</span> <span class='id identifier rubyid_condition'>condition</span>
<span class='id identifier rubyid_dispatch'>dispatch</span><span class='lparen'>(</span><span class='symbol'>:on_close</span><span class='rparen'>)</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
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0.9.24 (ruby-2.7.2).
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