Isis::BoxcarCachingAlgorithm Class Reference

This algorithm is designed for applications that jump around between a couple of spots in the cube with a difficult to predict pattern but always the same places in the cube. More...

#include <BoxcarCachingAlgorithm.h>

Inherits Isis::CubeCachingAlgorithm.

List of all members.

Public Member Functions
	BoxcarCachingAlgorithm ()
	Construct a new BoxcarCachingAlgorithm.
virtual	~BoxcarCachingAlgorithm ()
	Frees the memory allocated by this caching algorithm.
virtual CacheResult	recommendChunksToFree (QList< RawCubeChunk * > allocated, QList< RawCubeChunk * > justUsed, const Buffer &justRequested)
	Please see the class description for how this algorithm works.

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Detailed Description

This algorithm is designed for applications that jump around between a couple of spots in the cube with a difficult to predict pattern but always the same places in the cube.

This was designed for ProcessMosaic which jumps between band 1 and band n in the possible patterns (where A is a line on band 1 and B is a line on band N): A,A or A,B,A or A,B,B,A

Author:

????-??-?? Jai Rideout and Steven Lambright

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Constructor & Destructor Documentation

Isis::BoxcarCachingAlgorithm::BoxcarCachingAlgorithm

(

)

Construct a new BoxcarCachingAlgorithm.

The last numUniqueIOs will be kept in the cache, while the other chunks in the cache will all be tossed.

Parameters:

numUniqueIOs

The number of unique IO operations to keep the chunks around for.

Isis::BoxcarCachingAlgorithm::~BoxcarCachingAlgorithm

(

)

[virtual]

Frees the memory allocated by this caching algorithm.

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Member Function Documentation

CubeCachingAlgorithm::CacheResult Isis::BoxcarCachingAlgorithm::recommendChunksToFree	(	QList< RawCubeChunk * >	allocated,
		QList< RawCubeChunk * >	justUsed,
		const Buffer &	justRequested
	)			[virtual]

Please see the class description for how this algorithm works.

Parameters:

	allocated	All of the allocated cube chunks
	justUsed	The cube chunks used in the last I/O
	justRequested	The buffer passed into the last I/O

Returns:

The chunks that should be removed from memory

Implements Isis::CubeCachingAlgorithm.

References Isis::RawCubeChunk::getStartLine(), Isis::RawCubeChunk::lineCount(), and minLine.

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

• src/base/objs/BoxcarCachingAlgorithm/BoxcarCachingAlgorithm.h
• src/base/objs/BoxcarCachingAlgorithm/BoxcarCachingAlgorithm.cpp