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 <UniqueIOCachingAlgorithm.h>

Inheritance diagram for Isis::UniqueIOCachingAlgorithm:

Collaboration diagram for Isis::UniqueIOCachingAlgorithm:

Public Member Functions
	UniqueIOCachingAlgorithm (int numUniqueIOs)
	Construct a new UniqueIOCachingAlgorithm. More...

virtual	~UniqueIOCachingAlgorithm ()
	Frees the memory allocated by this caching algorithm. More...

virtual CacheResult	recommendChunksToFree (QList< RawCubeChunk > allocated, QList< RawCubeChunk > justUsed, const Buffer &justRequested)
	Please see the class description for how this algorithm works. More...

Private Attributes
QQueue< QList< RawCubeChunk * > > *	m_uniqueIOs
	This is the set of past unique IOs. More...

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

Definition at line 47 of file UniqueIOCachingAlgorithm.h.

Constructor & Destructor Documentation

◆ UniqueIOCachingAlgorithm()

Isis::UniqueIOCachingAlgorithm::UniqueIOCachingAlgorithm ( int numUniqueIOs )

Construct a new UniqueIOCachingAlgorithm.

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.

Definition at line 42 of file UniqueIOCachingAlgorithm.cpp.

References _FILEINFO_, m_uniqueIOs, and Isis::IException::Programmer.

◆ ~UniqueIOCachingAlgorithm()

Isis::UniqueIOCachingAlgorithm::~UniqueIOCachingAlgorithm ( )

virtual

Frees the memory allocated by this caching algorithm.

Definition at line 60 of file UniqueIOCachingAlgorithm.cpp.

References m_uniqueIOs.

Member Function Documentation

◆ recommendChunksToFree()

CubeCachingAlgorithm::CacheResult Isis::UniqueIOCachingAlgorithm::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.

Definition at line 78 of file UniqueIOCachingAlgorithm.cpp.

References m_uniqueIOs.

Member Data Documentation

◆ m_uniqueIOs

QQueue< QList <RawCubeChunk *> >* Isis::UniqueIOCachingAlgorithm::m_uniqueIOs

private

This is the set of past unique IOs.

All chunks not in this set of lists are freed from memory.

Definition at line 61 of file UniqueIOCachingAlgorithm.h.

Referenced by recommendChunksToFree(), UniqueIOCachingAlgorithm(), and ~UniqueIOCachingAlgorithm().

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

src/base/objs/UniqueIOCachingAlgorithm/UniqueIOCachingAlgorithm.h
src/base/objs/UniqueIOCachingAlgorithm/UniqueIOCachingAlgorithm.cpp

Public Member Functions

Private Attributes