ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/mkfifou.htm

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<title>QlgMkfifo()--Make FIFO Special File (using NLS-enabled path
name)</title>
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<h2>QlgMkfifo()--Make FIFO Special File (using NLS-enabled path name)</h2>
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<br>
&nbsp;&nbsp;Syntax<br>
<pre>
#include &lt;sys/types.h&gt;
#include &lt;sys/stat.h&gt;
#include &lt;Qlg.h&gt;
int QlgMkfifo(const Qlg_Path_Name_T <em>*path</em>,
mode_t <em>mode</em>);
</pre>
&nbsp;&nbsp;Service Program Name: QP0LLIB1<br>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: Conditional; see Usage Notes for <a href="mkfifo.htm">mkfifo()</a>.<br>
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<p>The <strong>QlgMkfifo()</strong> function, like the <strong>
mkfifo()</strong> function, creates a new FIFO special file whose name is
defined by <em>path</em>. The difference is that the <strong>
QlgMkfifo()</strong> function takes a pointer to a Qlg_Path_Name_T structure,
while <strong>mkfifo()</strong> takes a pointer to a character string.</p>
<p>Limited information on the <em>path</em> parameter is provided here. For
more information on the <em>path</em> parameter and for a discussion of other
parameters, authorities required, return values, and related information, see
<a href="mkfifo.htm">mkfifo()</a>--Make FIFO Special File.</p>
<br>
<h3>Parameters</h3>
<dl>
<dt><strong><em>path</em></strong></dt>
<dd>(Input) A pointer to a Qlg_Path_Name_T structure that contains a path name
or a pointer to a path name of the FIFO to be created. For more information on
the Qlg_Path_Name_T structure, see <a href="../apiref/pns.htm">Path name format</a>.</dd>
</dl>
<br>
<h3>Related Information</h3>
<ul>
<li><a href="mkfifo.htm">mkfifo()</a>--Make FIFO Special File<br>
<br>
</li>
<li><a href="chmodu.htm">QlgChmod()</a>--Change File Authorizations (using
NLS-enabled path name)<br>
<br>
</li>
<li><a href="statu.htm">QlgStat()</a>--Get File Information (using NLS-enabled
path name)</li>
</ul>
<br>
<h3>Example</h3>
<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
for information pertaining to code examples.</p>
<p>The following example creates a new FIFO:</p>
<pre>
#include &lt;sys/stat.h&gt;
#include &lt;stdio.h&gt;
#include &lt;string.h&gt;
#include &lt;Qlg.h&gt;
void main()
{
typedef struct pnstruct
{
Qlg_Path_Name_T qlg_struct;
char[100] pn; /* This size must be &gt;= the path */
/* name length or a pointer to */
/* the path name. */
};
struct pnstruct path;
char *mypath = "/newFIFO";
/**************************************************************/
/* Initialize Qlg_Path_Name_T structure. */
/**************************************************************/
memset((void*)path name, 0x00, sizeof(struct pnstruct));
path.qlg_struct.CCSID = 37;
memcpy(path.qlg_struct.Country_ID, "US", 2);
memcpy(path.qlg_struct.Language_ID, "ENU", 3);
path.qlg_struct.Path_Type = QLG_CHAR_SINGLE;
path.qlg_struct.Path_Length = strlen(mypath);
path.qlg_struct.Path_Name_Delimiter = '/';
memcpy(path.pn, mypath, strlen(mypath));
if (QlgMkfifo((Qlg_Path_Name_T *)path name,
S_IRWXU|S_IRWXO) != 0)
perror("QlgMkfifo() error");
else
puts("success!");
return;
}
</pre>
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API introduced: V5R1
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