fkie_message_filters::Selector< IO< Inputs... >, Is... > Class Template Reference

Reorder or reduce an N-ary filter. More...

#include <selector.h>

Inheritance diagram for fkie_message_filters::Selector< IO< Inputs... >, Is... >:

Protected Member Functions
void	receive (const Inputs &... in) override
	Process incoming data. More...
Protected Member Functions inherited from fkie_message_filters::Source< IO< Inputs... >::template Select< Is... > >
void	send (const Outputs &... out)
	Pass data to all connected sinks. More...

Additional Inherited Members
Public Types inherited from fkie_message_filters::Sink< Inputs... >
using	Input = IO< Inputs... >
	Grouped input types. More...
Public Types inherited from fkie_message_filters::Source< IO< Inputs... >::template Select< Is... > >
using	Output = IO< Outputs... >
	Grouped output types. More...
Public Member Functions inherited from fkie_message_filters::Sink< Inputs... >
Connection	connect_to_source (Source< Inputs... > &src) noexcept
	Connect this sink to a source. More...
void	disconnect_from_all_sources () noexcept
	Disconnect from all connected sources. More...
virtual	~Sink ()
Public Member Functions inherited from fkie_message_filters::FilterBase
virtual void	reset () noexcept
	Reset filter state. More...
virtual	~FilterBase ()
Public Member Functions inherited from fkie_message_filters::Source< IO< Inputs... >::template Select< Is... > >
Connection	connect_to_sink (Sink< Outputs... > &dst) noexcept
	Connect this source to a sink. More...
void	disconnect_from_all_sinks () noexcept
	Disconnect from all connected sinks. More...
virtual	~Source ()
Static Public Attributes inherited from fkie_message_filters::Sink< Inputs... >
static constexpr std::size_t	NUM_INPUTS
	Number of input arguments. More...
Static Public Attributes inherited from fkie_message_filters::Source< IO< Inputs... >::template Select< Is... > >
static constexpr std::size_t	NUM_OUTPUTS
	Number of output arguments. More...

Detailed Description

template<class... Inputs, std::size_t... Is>
class fkie_message_filters::Selector< IO< Inputs... >, Is... >

Reorder or reduce an N-ary filter.

This filter reorders the arguments of an N-ary filter and/or chooses an arbitrary subset of the input arguments. The output arguments are selected from the input by index. The following example reduces a ternary filter to a binary filter of the first two arguments, in swapped order:

namespace mf = fkie_message_filters;
 
using BufferIn = mf::Buffer<T0, T1, T2>;
using Select = mf::Selector<BufferIn::Output, 1, 0>;
using BufferOut = mf::Buffer<T1, T0>;
 
BufferIn buf_in;
Select select;
BufferOut buf_out;
mf::chain(buf_in, select, buf_out);

See also

Divider, Combiner

Definition at line 72 of file selector.h.

Member Function Documentation

receive()

template<class... Inputs, std::size_t... Is>

void fkie_message_filters::Selector< IO< Inputs... >, Is... >::receive ( const Inputs &...  in )

overrideprotectedvirtual

Process incoming data.

Derived classes need to override this method to handle all data that is to be consumed by the sink.

\abstractthrow

Implements fkie_message_filters::Sink< Inputs... >.

Definition at line 47 of file selector_impl.h.

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The documentation for this class was generated from the following files:

• selector.h
• selector_impl.h