inotify-queue-len.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.inotify-queue-len" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>inotify_queue_len</refname>
  <refpurpose>如果有待处理事件，返回大于零的数字</refpurpose>
 </refnamediv>
 
 <refsect1 role="description"><!-- {{{ -->
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>inotify_queue_len</methodname>
   <methodparam><type>resource</type><parameter>inotify_instance</parameter></methodparam>
  </methodsynopsis>
  <para>
   可以通过此函数知道 <function>inotify_read</function> 
   是否会阻塞。如果返回大于零的数字，表示有待处理的事件，<function>inotify_read</function> 
   不会阻塞。
  </para>
 </refsect1><!-- }}} -->
 
 <refsect1 role="parameters"><!-- {{{ -->
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>inotify_instance</parameter></term>
     <listitem>
      <para>
       &inotify.instance.description;
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1><!-- }}} -->
 
 <refsect1 role="returnvalues"><!-- {{{ -->
  &reftitle.returnvalues;
  <para>
   如果有待处理事件，返回大于零的数字。
  </para>
 </refsect1><!-- }}} -->
 
 <refsect1 role="seealso"><!-- {{{ -->
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>inotify_init</function></member>
    <member><function>stream_select</function></member>
    <member><function>stream_set_blocking</function></member>
   </simplelist>
  </para>
 </refsect1><!-- }}} -->

</refentry>
 
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