proc-close.xml

<?xml version="1.0" encoding="utf-8"?>
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<!-- splitted from ./en/functions/exec.xml, last change in rev 1.28 -->
<refentry xml:id='function.proc-close' xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>proc_close</refname>
  <refpurpose>关闭由 <function>proc_open</function> 打开的进程并且返回进程退出码</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>proc_close</methodname>
   <methodparam><type>resource</type><parameter>process</parameter></methodparam>
  </methodsynopsis>
  <para>
    <function>proc_close</function> 同 <function>pclose</function> 函数类似，只是
    <function>proc_close</function> 只能用来关闭由 <function>proc_open</function>
    函数打开的进程。<function>proc_close</function>
    函数会等待进程终止，并返回它的退出代码。调用此函数时，为避免死锁，该进程打开的管道将关闭——在管道处于打开状态时，子进程将不能退出。
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>process</parameter></term>
     <listitem>
      <para>
       要关闭的由 <function>proc_open</function> 打开的 <type>resource</type> 。
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
    返回进程的终止状态码。
    如果发生错误，将返回  <literal>-1</literal>。
  </para>
  &note.sigchild;
 </refsect1>

</refentry>

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