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<h1 class="refname">GearmanWorker::wait</h1>
<p class="verinfo">(PECL gearman >= 0.6.0)</p><p class="refpurpose"><span class="refname">GearmanWorker::wait</span> — <span class="dc-title">Wait for activity from one of the job servers</span></p>
</div>
<div class="refsect1 description" id="refsect1-gearmanworker.wait-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>GearmanWorker::wait</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Causes the worker to wait for activity from one of the Gearman job servers when operating
in non-blocking I/O mode. On failure, issues a <strong><code>E_WARNING</code></strong> with the last Gearman error
encountered.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-gearmanworker.wait-parameters">
<h3 class="title">Parameters</h3>
<p class="para">This function has no parameters.</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-gearmanworker.wait-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
</p>
</div>
<div class="refsect1 examples" id="refsect1-gearmanworker.wait-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4333">
<p><strong>Example #1 Running worker in non-blocking mode</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"Starting\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000"># Create our worker object<br /></span><span style="color: #0000BB">$worker</span><span style="color: #007700">= new </span><span style="color: #0000BB">GearmanWorker</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000"># Make the worker non-blocking<br /></span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">addOptions</span><span style="color: #007700">(</span><span style="color: #0000BB">GEARMAN_WORKER_NON_BLOCKING</span><span style="color: #007700">); <br /><br /></span><span style="color: #FF8000"># Add the default server (localhost, port 4730)<br /></span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">addServer</span><span style="color: #007700">(); <br /><br /></span><span style="color: #FF8000"># Add our reverse function<br /></span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">addFunction</span><span style="color: #007700">(</span><span style="color: #DD0000">'reverse'</span><span style="color: #007700">, </span><span style="color: #DD0000">'reverse_fn'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000"># Try to grab a job<br /></span><span style="color: #007700">while (@</span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">work</span><span style="color: #007700">() ||<br /> </span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">returnCode</span><span style="color: #007700">() == </span><span style="color: #0000BB">GEARMAN_IO_WAIT </span><span style="color: #007700">||<br /> </span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">returnCode</span><span style="color: #007700">() == </span><span style="color: #0000BB">GEARMAN_NO_JOBS</span><span style="color: #007700">)<br />{<br /> if (</span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">returnCode</span><span style="color: #007700">() == </span><span style="color: #0000BB">GEARMAN_SUCCESS</span><span style="color: #007700">)<br /> continue;<br /><br /> echo </span><span style="color: #DD0000">"Waiting for next job...\n"</span><span style="color: #007700">;<br /> if (!@</span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">wait</span><span style="color: #007700">()) <br /> { <br /> if (</span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">returnCode</span><span style="color: #007700">() == </span><span style="color: #0000BB">GEARMAN_NO_ACTIVE_FDS</span><span style="color: #007700">) <br /> { <br /> </span><span style="color: #FF8000"># We are not connected to any servers, so wait a bit before <br /> # trying to reconnect. <br /> </span><span style="color: #0000BB">sleep</span><span style="color: #007700">(</span><span style="color: #0000BB">5</span><span style="color: #007700">); <br /> continue; <br /> } <br /> break; <br /> } <br />} <br /><br />echo </span><span style="color: #DD0000">"Worker Error: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$worker</span><span style="color: #007700">-></span><span style="color: #0000BB">error</span><span style="color: #007700">() . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br />function </span><span style="color: #0000BB">reverse_fn</span><span style="color: #007700">(</span><span style="color: #0000BB">$job</span><span style="color: #007700">)<br />{<br /> return </span><span style="color: #0000BB">strrev</span><span style="color: #007700">(</span><span style="color: #0000BB">$job</span><span style="color: #007700">-></span><span style="color: #0000BB">workload</span><span style="color: #007700">());<br />}<br /><br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-gearmanworker.wait-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="methodname"><a href="gearmanworker.work.html" class="methodname" rel="rdfs-seeAlso">GearmanWorker::work()</a> - Wait for and perform jobs</span></li>
</ul>
</p>
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