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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QDataPump Class Reference<br><small>[obsolete]</small></h1>
<p>The QDataPump class moves data from a QDataSource to a QDataSink during event processing.
<a href="#details">More...</a>
<p><tt>#include <<a href="qasyncio-h.html">qasyncio.h</a>></tt>
<p>Inherits <a href="qobject.html">QObject</a>.
<p><a href="qdatapump-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#QDataPump"><b>QDataPump</b></a> ( QDataSource * data_source, QDataSink * data_sink )</li>
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<hr><a name="details"></a><h2>Detailed Description</h2>
<b>This class is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
<p> The QDataPump class moves data from a QDataSource to a QDataSink during event processing.
<p> For a QDataSource to provide data to a QDataSink, a controller must exist
to examine the <a href="qdatasource.html#readyToSend">QDataSource::readyToSend</a>() and <a href="qdatasink.html#readyToReceive">QDataSink::readyToReceive</a>()
methods and respond to the QASyncIO::activate() signal of the source and
sink. One very useful way to do this is interleaved with other event
processing. QDataPump provides this - create a pipe between a source
and a sink, and data will be moved during subsequent event processing.
<p> Note that each source can only provide data to one sink and each sink
can only receive data from one source (although it is quite possible
to write a multiplexing sink that is multiple sources).
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QDataPump"></a>QDataPump::QDataPump ( <a href="qdatasource.html">QDataSource</a> * data_source, <a href="qdatasink.html">QDataSink</a> * data_sink )
</h3>
Constructs a QDataPump to move data from a given <em>data_source</em>
to a given <em>data_sink</em>.
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