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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 >
< p > The TQDataPump class moves data from a TQDataSource to a TQDataSink during event processing.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "tqasyncio-h.html" > tqasyncio.h< / a > > < / tt >
< p > Inherits < a href = "tqobject.html" > TQObject< / a > .
< p > < a href = "tqdatapump-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
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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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< 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 This class is obsolete.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 TQDataPump class moves data from a TQDataSource to a TQDataSink during event processing.
< p > For a TQDataSource to provide data to a TQDataSink, a controller must exist
to examine the < a href = "tqdatasource.html#readyToSend" > TQDataSource::readyToSend< / a > () and < a href = "tqdatasink.html#readyToReceive" > TQDataSink::readyToReceive< / a > ()
methods and respond to the TQASyncIO::activate() signal of the source and
sink. One very useful way to do this is interleaved with other event
processing. TQDataPump 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 = "TQDataPump" > < / a > TQDataPump::TQDataPump ( < a href = "tqdatasource.html" > TQDataSource< / a > * data_source, < a href = "tqdatasink.html" > TQDataSink< / a > * data_sink )
< / h3 >
Constructs a TQDataPump to move data from a given < em > data_source< / em >
to a given < em > data_sink< / em > .
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