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</div><hr /><div id="eio.examples" class="chapter">
 <h1>Examples</h1>

 <p class="para">
 <div class="example" id="example-3582">
 <p><strong>Example #1 Cancelling a request</strong></p>
 <div class="example-contents">
 <div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />&nbsp;</span><span style="color: #FF8000">/*&nbsp;Is&nbsp;called&nbsp;when&nbsp;eio_nop()&nbsp;finished&nbsp;*/<br />&nbsp;</span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_nop_cb</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"my_nop&nbsp;"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />&nbsp;}<br /><br /></span><span style="color: #FF8000">//&nbsp;This&nbsp;eio_nop()&nbsp;call&nbsp;will&nbsp;be&nbsp;cancelled<br /></span><span style="color: #0000BB">$req&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">eio_nop</span><span style="color: #007700">(</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_nop_cb"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"1"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">eio_cancel</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;This&nbsp;time&nbsp;eio_nop()&nbsp;will&nbsp;be&nbsp;processed<br /></span><span style="color: #0000BB">eio_nop</span><span style="color: #007700">(</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_nop_cb"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"2"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Process&nbsp;requests<br /></span><span style="color: #0000BB">eio_event_loop</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
</div>

<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
 <div class="cdata"><pre>
resource(4) of type (EIO Request Descriptor)
my_nop 2
 </pre></div>
 </div>
 </div>
 </p>

 <p class="para">
 <div class="example" id="example-3583">
 <p><strong>Example #2 Calling  <span class="function"><a href="function.eio-chmod.html" class="function">eio_chmod()</a></span></strong></p>
 <div class="example-contents">
 <div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$temp_filename&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">dirname</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">)&nbsp;.</span><span style="color: #DD0000">"/eio-temp-file.tmp"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">touch</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;Is&nbsp;called&nbsp;when&nbsp;eio_chmod()&nbsp;finished&nbsp;*/<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_chmod_callback</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;global&nbsp;</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">;<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(</span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">==&nbsp;</span><span style="color: #0000BB">0&nbsp;</span><span style="color: #007700">&amp;&amp;&nbsp;!</span><span style="color: #0000BB">is_readable</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">)&nbsp;&amp;&amp;&nbsp;</span><span style="color: #0000BB">is_writable</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"eio_chmod_ok"</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;@</span><span style="color: #0000BB">unlink</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">eio_chmod</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0200</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_chmod_callback"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">eio_event_loop</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
</div>

<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
 <div class="cdata"><pre>
eio_chmod_ok
 </pre></div>
 </div>
 </div>
 </p>

 <p class="para">
 <div class="example" id="example-3584">
 <p><strong>Example #3 Making a custom request</strong></p>
 <div class="example-contents">
 <div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">/*&nbsp;Callback&nbsp;for&nbsp;the&nbsp;custom&nbsp;callback&nbsp;*/<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_custom_callback</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">count</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">));<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">'data_modified'</span><span style="color: #007700">]);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">[</span><span style="color: #DD0000">'result'</span><span style="color: #007700">]);<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;The&nbsp;custom&nbsp;request&nbsp;*/<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_custom</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$result&nbsp;&nbsp;</span><span style="color: #007700">=&nbsp;array(<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #DD0000">'result'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">1001</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #DD0000">'data_modified'&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #DD0000">"my&nbsp;custom&nbsp;data"</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">$data&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"my_custom_data"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$req&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">eio_custom</span><span style="color: #007700">(</span><span style="color: #DD0000">"my_custom"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_custom_callback"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">eio_event_loop</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
</div>

<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
 <div class="cdata"><pre>
resource(4) of type (EIO Request Descriptor)
string(14) &quot;my_custom_data&quot;
string(14) &quot;my_custom_data&quot;
int(2)
string(14) &quot;my custom data&quot;
int(1001)
 </pre></div>
 </div>
 </div>
 </p>

 <p class="para">
 <div class="example" id="example-3585">
 <p><strong>Example #4 Grouping requests</strong></p>
 <div class="example-contents">
 <div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">/*<br />&nbsp;*&nbsp;Create&nbsp;a&nbsp;group&nbsp;request&nbsp;to&nbsp;open,&nbsp;read&nbsp;and&nbsp;close&nbsp;a&nbsp;file<br />&nbsp;*/<br /><br /></span><span style="color: #0000BB">$temp_filename&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">dirname</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">)&nbsp;.</span><span style="color: #DD0000">"/eio-file.tmp"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$fp&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"w"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"some&nbsp;data"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;Is&nbsp;called&nbsp;when&nbsp;the&nbsp;group&nbsp;requests&nbsp;are&nbsp;done&nbsp;*/<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_grp_done</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">)&nbsp;{<br />&nbsp;global&nbsp;</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">;<br />&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">==&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">);<br />&nbsp;@</span><span style="color: #0000BB">unlink</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;Is&nbsp;called&nbsp;when&nbsp;eio_open()&nbsp;done&nbsp;*/<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_grp_file_opened_callback</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">)&nbsp;{<br />&nbsp;global&nbsp;</span><span style="color: #0000BB">$my_file_fd</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$grp</span><span style="color: #007700">;<br /><br />&nbsp;</span><span style="color: #0000BB">$my_file_fd&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">;<br /><br />&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">&gt;&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /><br />&nbsp;</span><span style="color: #FF8000">//&nbsp;Create&nbsp;eio_read()&nbsp;request&nbsp;and&nbsp;add&nbsp;it&nbsp;to&nbsp;the&nbsp;group<br />&nbsp;</span><span style="color: #0000BB">$req&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">eio_read</span><span style="color: #007700">(</span><span style="color: #0000BB">$my_file_fd</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">4</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_grp_file_read_callback"</span><span style="color: #007700">);<br />&nbsp;</span><span style="color: #0000BB">eio_grp_add</span><span style="color: #007700">(</span><span style="color: #0000BB">$grp</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;Is&nbsp;called&nbsp;when&nbsp;eio_read()&nbsp;done&nbsp;*/<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_grp_file_read_callback</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">)&nbsp;{<br />&nbsp;global&nbsp;</span><span style="color: #0000BB">$my_file_fd</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$grp</span><span style="color: #007700">;<br /><br />&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br />&nbsp;</span><span style="color: #FF8000">//&nbsp;Create&nbsp;eio_close()&nbsp;request&nbsp;and&nbsp;add&nbsp;it&nbsp;to&nbsp;the&nbsp;group<br />&nbsp;</span><span style="color: #0000BB">$req&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">eio_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$my_file_fd</span><span style="color: #007700">);<br />&nbsp;</span><span style="color: #0000BB">eio_grp_add</span><span style="color: #007700">(</span><span style="color: #0000BB">$grp</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">$grp&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">eio_grp</span><span style="color: #007700">(</span><span style="color: #DD0000">"my_grp_done"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_grp_data"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Create&nbsp;eio_open()&nbsp;request&nbsp;and&nbsp;add&nbsp;it&nbsp;to&nbsp;the&nbsp;group<br /></span><span style="color: #0000BB">$req&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">eio_open</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp_filename</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">EIO_O_RDWR&nbsp;</span><span style="color: #007700">|&nbsp;</span><span style="color: #0000BB">EIO_O_APPEND&nbsp;</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">NULL</span><span style="color: #007700">,<br />&nbsp;&nbsp;</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_grp_file_opened_callback"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">NULL</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">eio_grp_add</span><span style="color: #007700">(</span><span style="color: #0000BB">$grp</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$grp</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">eio_event_loop</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
</div>

<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
 <div class="cdata"><pre>
resource(6) of type (EIO Group Descriptor)
bool(true)
string(4) &quot;some&quot;
bool(true)
 </pre></div>
 </div>
 </div>
 </p>

<p class="para">
  <div class="example" id="example-3586">
   <p><strong>Example #5 Using eio with libevent</strong></p>
   <div class="example-contents"><div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">my_eio_poll</span><span style="color: #007700">(</span><span style="color: #0000BB">$fd</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$events</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$arg</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;Some&nbsp;libevent&nbsp;regulation&nbsp;might&nbsp;go&nbsp;here&nbsp;..&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">eio_nreqs</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">eio_poll</span><span style="color: #007700">();<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;..&nbsp;and&nbsp;here&nbsp;*/<br /></span><span style="color: #007700">}<br /><br />function&nbsp;</span><span style="color: #0000BB">my_nop_cb</span><span style="color: #007700">(</span><span style="color: #0000BB">$d</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$r</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$r</span><span style="color: #007700">);&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$d</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">$base&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">event_base_new</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$event&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">event_new</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$fd&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">eio_get_event_stream</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$fd</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">eio_nop</span><span style="color: #007700">(</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_nop_cb"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"nop&nbsp;data"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">eio_mkdir</span><span style="color: #007700">(</span><span style="color: #DD0000">"/tmp/abc-eio-temp"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0750</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">EIO_PRI_DEFAULT</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_nop_cb"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"nop&nbsp;data"</span><span style="color: #007700">);<br /></span><span style="color: #FF8000">/*&nbsp;some&nbsp;other&nbsp;eio_*&nbsp;calls&nbsp;here&nbsp;...&nbsp;*/<br /><br /><br />//&nbsp;set&nbsp;event&nbsp;flags<br /></span><span style="color: #0000BB">event_set</span><span style="color: #007700">(</span><span style="color: #0000BB">$event</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$fd</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">EV_READ&nbsp;</span><span style="color: #FF8000">/*|&nbsp;EV_PERSIST*/</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_eio_poll"</span><span style="color: #007700">,&nbsp;array(</span><span style="color: #0000BB">$event</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$base</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">//&nbsp;set&nbsp;event&nbsp;base&nbsp;<br /></span><span style="color: #0000BB">event_base_set</span><span style="color: #007700">(</span><span style="color: #0000BB">$event</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$base</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;enable&nbsp;event<br /></span><span style="color: #0000BB">event_add</span><span style="color: #007700">(</span><span style="color: #0000BB">$event</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;start&nbsp;event&nbsp;loop<br /></span><span style="color: #0000BB">event_base_loop</span><span style="color: #007700">(</span><span style="color: #0000BB">$base</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;The&nbsp;same&nbsp;will&nbsp;be&nbsp;available&nbsp;via&nbsp;buffered&nbsp;libevent&nbsp;interface&nbsp;*/<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div></div>


<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
 <div class="cdata"><pre>
int(3)
int(0)
string(8) &quot;nop data&quot;
int(0)
string(10) &quot;mkdir data&quot;
 </pre></div>
 </div>
</div>
</p>

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