etl::impl::ExtractionDataPipe< RawDataType > Class Template Reference

A collection of thread safe async queues used by Extractor and Transformer to communicate. More...

#include <ExtractionDataPipe.hpp>

Public Types
using	DataType = std::optional<RawDataType>
using	QueueType = ThreadSafeQueue<DataType>

Public Member Functions
	ExtractionDataPipe (uint32_t stride, uint32_t startSequence)
	Create a new instance of the extraction data pipe.
void	push (uint32_t sequence, DataType &&data)
	Push new data package for the specified sequence.
DataType	popNext (uint32_t sequence)
	Get data package for the given sequence.
uint32_t	getStride () const
void	finish (uint32_t sequence)
	Hint the Transformer that the queue is done sending data.
void	cleanup ()
	Unblocks internal queues.

Static Public Attributes
static constexpr auto	kTOTAL_MAX_IN_QUEUE = 1000u

Detailed Description

template<typename RawDataType>
class etl::impl::ExtractionDataPipe< RawDataType >

A collection of thread safe async queues used by Extractor and Transformer to communicate.

Constructor & Destructor Documentation

ExtractionDataPipe()

template<typename RawDataType>

etl::impl::ExtractionDataPipe< RawDataType >::ExtractionDataPipe ( uint32_t stride, uint32_t startSequence )

inline

Create a new instance of the extraction data pipe.

Parameters

stride
startSequence

Member Function Documentation

cleanup()

template<typename RawDataType>

void etl::impl::ExtractionDataPipe< RawDataType >::cleanup ( )

inline

Unblocks internal queues.

Note: For now this must be called by the ETL when Transformer exits.

finish()

template<typename RawDataType>

void etl::impl::ExtractionDataPipe< RawDataType >::finish ( uint32_t sequence )

inline

Hint the Transformer that the queue is done sending data.

Parameters

sequence

The sequence for which the extractor queue is to be hinted

getStride()

template<typename RawDataType>

uint32_t etl::impl::ExtractionDataPipe< RawDataType >::getStride ( ) const

inline

Returns

Get the stride

popNext()

template<typename RawDataType>

DataType etl::impl::ExtractionDataPipe< RawDataType >::popNext ( uint32_t sequence )

inline

Get data package for the given sequence.

Note: Potentially blocks until data is available.

Parameters

sequence

The sequence for which data is required

Returns

The data wrapped in an optional; nullopt means that there is no more data to expect

push()

template<typename RawDataType>

void etl::impl::ExtractionDataPipe< RawDataType >::push ( uint32_t sequence, DataType && data )

inline

Push new data package for the specified sequence.

Note: Potentially blocks until the underlying queue can accommodate another entry.

Parameters

sequence	The sequence for which to enqueue the data package
data	The data to store

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

• /__w/clio/clio/src/etl/impl/ExtractionDataPipe.hpp