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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
<!-- splitted from ./en/functions/posix.xml, last change in rev 1.2 -->
<refentry id="function.posix-mkfifo">
<refnamediv>
<refname>posix_mkfifo</refname>
<refpurpose>
Create a fifo special file (a named pipe)
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>bool</type><methodname>posix_mkfifo</methodname>
<methodparam><type>string</type><parameter>pathname</parameter></methodparam>
<methodparam><type>int</type><parameter>mode</parameter></methodparam>
</methodsynopsis>
<para>
<function>posix_mkfifo</function> creates a special
<literal>FIFO</literal> file which exists in the file system and acts as
a bidirectional communication endpoint for processes.
</para>
<para>
The second parameter <parameter>mode</parameter> has to be given in octal
notation (e.g. 0644). The permission of the newly created
<literal>FIFO</literal> also depends on the setting of the current
<function>umask</function>. The permissions of the created file are (mode
& ~umask).
</para>
<para>
&return.success;
</para>
¬e.sm.uidcheck.dir;
</refsect1>
</refentry>
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