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<title>clGetPipeInfo</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1" />
<meta name="keywords" content="clGetPipeInfo" />
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<body>
<div class="refentry">
<a id="id-1"></a>
<div class="titlepage"></div>
<div xmlns="" class="refnamediv">
<a xmlns="http://www.w3.org/1999/xhtml" id="clGetPipeInfo"></a>
<h1>
clGetPipeInfo
</h1>
<p>
Get information specific to a pipe object created with clCreatePipe.
</p>
</div>
<div class="refsynopsisdiv">
<h2></h2>
<div class="funcsynopsis">
<table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
<tr valign="bottom">
<td>
<code xmlns="http://www.w3.org/1999/xhtml" class="funcdef">
<a class="link" href="scalarDataTypes.html" target="pagedisplay">cl_int</a>
<strong class="fsfunc">clGetPipeInfo</strong>
(</code>
<td>
<a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_mem</a>
 <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">pipe</var>
, </td>
</td>
</tr>
<tr valign="top">
<td> </td>
<td>
<a xmlns="http://www.w3.org/1999/xhtml" class="link" href="enums.html#cl_pipe_info" target="pagedisplay">cl_pipe_info</a>
 <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">param_name</var>
, </td>
</tr>
<tr valign="top">
<td> </td>
<td>
<a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">size_t</a>
 <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">param_value_size</var>
, </td>
</tr>
<tr valign="top">
<td> </td>
<td>
<a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">void</a>
 <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*param_value</var>
, </td>
</tr>
<tr valign="top">
<td> </td>
<td>
<a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">size_t</a>
 <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*param_value_size_ret</var>
<code>)</code></td>
</tr>
</table>
</div>
</div>
<div class="refsect1">
<a id="parameters"></a>
<h2>Parameters</h2>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term"> <code class="varname"> pipe </code> </span>
</dt>
<dd>
<p>
Specifies the pipe object being queried.
</p>
</dd>
<dt>
<span class="term"> <code class="varname"> param_name </code> </span>
</dt>
<dd>
<p>
Specifies the information to query. The list of supported
<code class="varname">param_name</code> types and the
information returned in <code class="varname">param_value</code> by
<code class="function">clGetPipeInfo</code> is described
in the table below.
</p>
<div class="informaltable">
<table class="informaltable" border="1">
<colgroup>
<col align="left" class="col1" />
<col align="left" class="col2" />
<col align="left" class="col3" />
</colgroup>
<thead>
<tr>
<th align="left">cl_pipe_info</th>
<th align="left">Return Type</th>
<th align="left">Info. returned in <code class="varname">param_value</code></th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">
<code class="constant">CL_PIPE_PACKET_SIZE</code>
</td>
<td align="left">cl_uint</td>
<td align="left">
Return pipe packet size specified when
<code class="varname">pipe</code> is created with
<a class="citerefentry" href="clCreatePipe.html"><span class="citerefentry"><span class="refentrytitle">clCreatePipe</span></span></a>.
</td>
</tr>
<tr>
<td align="left">
<code class="constant">CL_PIPE_MAX_PACKETS</code>
</td>
<td align="left">cl_uint</td>
<td align="left">
Return max. number of packets specified
when <code class="varname">pipe</code> is created with
<a class="citerefentry" href="clCreatePipe.html"><span class="citerefentry"><span class="refentrytitle">clCreatePipe</span></span></a>.
</td>
</tr>
</tbody>
</table>
</div>
</dd>
<dt>
<span class="term"> <code class="varname"> param_value </code> </span>
</dt>
<dd>
<p>
A pointer to memory where the appropriate result being queried is returned.
If <code class="varname">param_value</code> is NULL, it is ignored.
</p>
</dd>
<dt>
<span class="term"> <code class="varname"> param_value_size </code> </span>
</dt>
<dd>
<p>
Used to specify the size in bytes of memory pointed to by <code class="varname">param_value</code>.
This size must be ≥ size of return type as described in the table above.
</p>
</dd>
<dt>
<span class="term"> <code class="varname"> param_value_size_ret </code> </span>
</dt>
<dd>
<p>
Returns the actual size in bytes of data being queried by <code class="varname">param_value</code>.
If <code class="varname">param_value_size_ret</code> is NULL, it is ignored.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1">
<a id="description"></a>
<h2>Notes</h2>
<p>
To get information that is common to all memory objects,
use the <a class="citerefentry" href="clGetMemObjectInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetMemObjectInfo</span></span></a> function.
</p>
</div>
<div class="refsect1">
<a id="errors"></a>
<h2>Errors</h2>
<p>
Returns <span class="errorname">CL_SUCCESS</span> if the function is executed successfully.
Otherwise, it returns one of the following errors:
</p>
<div class="itemizedlist">
<ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if
<code class="varname">param_name</code> is not valid, or if size
in bytes specified by <code class="varname">param_value_size</code>
is &lt; the size of return type as
described in the table above and <code class="varname">param_value</code> is not NULL.
</li>
<li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_MEM_OBJECT</span> if <code class="varname">pipe</code>
is a not a valid memory object.
</li>
<li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_RESOURCES</span> if there is a failure to
allocate resources required by the
OpenCL implementation on the device.
</li>
<li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_HOST_MEMORY</span> if there is a failure to
allocate resources required by the
OpenCL implementation on the host.
</li>
</ul>
</div>
</div>
<div class="refsect1">
<a id="specification"></a>
<h2>Specification</h2>
<p>
<img src="pdficon_small1.gif" />
<a href="https://www.khronos.org/registry/cl/specs/opencl-2.1.pdf#namedest=clGetPipeInfo" target="OpenCL Spec">OpenCL Specification</a>
</p>
</div>
<div class="refsect1">
<a id="seealso"></a>
<h2>Also see</h2>
<p>
<a class="citerefentry" href="clGetImageInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetImageInfo</span></span></a>
</p>
</div>
<div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2015 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are furnished to do so, subject to
the condition that this copyright notice and permission notice shall be included
in all copies or substantial portions of the Materials.
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