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benchmarking.</title>
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<h1 class="refname">eio_busy</h1>
<p class="verinfo">(PECL eio >= 0.0.1dev)</p><p class="refpurpose"><span class="refname">eio_busy</span> — <span class="dc-title">Artificially increase load. Could be useful in tests,
benchmarking.</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.eio-busy-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">resource</span> <span class="methodname"><strong>eio_busy</strong></span>
( <span class="methodparam"><span class="type">int</span> <code class="parameter">$delay</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$pri</code><span class="initializer"> = EIO_PRI_DEFAULT</span></span>
[, <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$callback</code><span class="initializer"> = NULL</span></span>
[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$data</code><span class="initializer"> = NULL</span></span>
]]] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>eio_busy()</strong></span> artificially increases load taking
<em><code class="parameter">delay</code></em> seconds to execute. May be used for debugging,
or benchmarking.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.eio-busy-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<span class="term"><em><code class="parameter">delay</code></em></span>
<dd>
<p class="para">
Delay in seconds
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">pri</code></em></span>
<dd>
<p class="para">The request priority: <strong><code>EIO_PRI_DEFAULT</code></strong>, <strong><code>EIO_PRI_MIN</code></strong>, <strong><code>EIO_PRI_MAX</code></strong>, or <strong><code>NULL</code></strong>.
If <strong><code>NULL</code></strong> passed, <em><code class="parameter">pri</code></em> internally is set to
<strong><code>EIO_PRI_DEFAULT</code></strong>.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">callback</code></em></span>
<dd>
<p class="para">
This callback is called when all the group requests are done.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">data</code></em></span>
<dd>
<p class="para">
Arbitrary variable passed to <em><code class="parameter">callback</code></em>.
</p>
</dd>
</dt>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.eio-busy-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
<span class="function"><strong>eio_busy()</strong></span> returns request resource on success or <strong><code>FALSE</code></strong> on error.
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.eio-busy-seealso"> <h3 class="title">See Also</h3>
<ul class="simplelist">
<li class="member">eio_nop</li>
</ul>
</div>
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