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75 lines
3.5 KiB
75 lines
3.5 KiB
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<title>TQDataPump Class</title>
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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>TQDataPump Class Reference<br><small>[obsolete]</small></h1>
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<p>The TQDataPump class moves data from a TQDataSource to a TQDataSink during event processing.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qasyncio-h.html">ntqasyncio.h</a>></tt>
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<p>Inherits <a href="tqobject.html">TQObject</a>.
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<p><a href="tqdatapump-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQDataPump"><b>TQDataPump</b></a> ( TQDataSource * data_source, TQDataSink * data_sink )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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<b>This class is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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<p> The TQDataPump class moves data from a TQDataSource to a TQDataSink during event processing.
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<p> For a TQDataSource to provide data to a TQDataSink, a controller must exist
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to examine the <a href="tqdatasource.html#readyToSend">TQDataSource::readyToSend</a>() and <a href="tqdatasink.html#readyToReceive">TQDataSink::readyToReceive</a>()
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methods and respond to the TQASyncIO::activate() signal of the source and
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sink. One very useful way to do this is interleaved with other event
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processing. TQDataPump provides this - create a pipe between a source
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and a sink, and data will be moved during subsequent event processing.
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<p> Note that each source can only provide data to one sink and each sink
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can only receive data from one source (although it is quite possible
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to write a multiplexing sink that is multiple sources).
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQDataPump"></a>TQDataPump::TQDataPump ( <a href="tqdatasource.html">TQDataSource</a> * data_source, <a href="tqdatasink.html">TQDataSink</a> * data_sink )
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</h3>
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Constructs a TQDataPump to move data from a given <em>data_source</em>
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to a given <em>data_sink</em>.
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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