te::rst::SynchronizedBandBlocksManager Class Reference

Synchronized raster raster band blocks manager. More...

#include <SynchronizedBandBlocksManager.h>

Classes
class	BlockIndex
	Internal blocks indexes. More...

Public Member Functions
void	free ()
void *	getBlockPointer (unsigned int band, unsigned int x, unsigned int y)
	Returns a pointer to the required data block.
unsigned int	getMaxNumberOfCacheBlocks () const
	The maximum number of cache blocks.
te::rst::Raster *	getRaster () const
	Returns the associated raster.
RasterSynchronizer *	getSynchronizer () const
	Return a pointer to the assotiated synchronizer instance or NULL if there is none.
bool	initialize (const unsigned int maxNumberOfCacheBlocks, RasterSynchronizer &sync)
	Initialize this instance to an initial state.
bool	initialize (RasterSynchronizer &sync, const unsigned char maxMemPercentUsed)
	Initialize this instance to an initial state.
bool	isInitialized () const
	Returns true if this instance is initialized.
	SynchronizedBandBlocksManager ()
	~SynchronizedBandBlocksManager ()

Protected Attributes
std::vector< BlockIndex >	m_blocksFifo
	blocks swap FIFO.
unsigned int	m_blocksFifoNextSwapBlockIndex
	The next block swapp index over m_blocksFifo.
std::vector< unsigned char * >	m_blocksHandler
	Cache blocks handler.
std::vector< std::vector< std::vector< unsigned char * > > >	m_blocksPointers
	3D Matrix of block pointers indexed as [band][blockYIndex][blockXIndex].
unsigned char *	m_getBlockPointer_BlkPtr
unsigned int	m_globalBlockSizeBytes
	The maximum block size for all bands.
unsigned int	m_globalBlocksNumberX
	The maximum number of blocks (X axis) for all bands.
unsigned int	m_globalBlocksNumberY
	The maximum number of blocks (Y axis) for all bands.
unsigned int	m_maxNumberOfCacheBlocks
	The maximum number of cache blocks.
RasterSynchronizer *	m_syncPtr
	A pointer to the synchronizer used by this instance, of null if not initialized.

Private Member Functions
void	initState ()
	Initialize this instance to an initial state.
	SynchronizedBandBlocksManager (const SynchronizedBandBlocksManager &other)

Detailed Description

Synchronized raster raster band blocks manager.

Definition at line 47 of file SynchronizedBandBlocksManager.h.

Constructor & Destructor Documentation

SynchronizedBandBlocksManager() [1/2]

te::rst::SynchronizedBandBlocksManager::SynchronizedBandBlocksManager

(

)

~SynchronizedBandBlocksManager()

te::rst::SynchronizedBandBlocksManager::~SynchronizedBandBlocksManager

(

)

SynchronizedBandBlocksManager() [2/2]

te::rst::SynchronizedBandBlocksManager::SynchronizedBandBlocksManager ( const SynchronizedBandBlocksManager &  other )

inlineprivate

Definition at line 173 of file SynchronizedBandBlocksManager.h.

Member Function Documentation

free()

void te::rst::SynchronizedBandBlocksManager::free

(

)

Note

Free all allocated internal resources and go back to the initial state.

getBlockPointer()

void * te::rst::SynchronizedBandBlocksManager::getBlockPointer	(	unsigned int	band,
		unsigned int	x,
		unsigned int	y
	)

Returns a pointer to the required data block.

Parameters

band	The band index.
x	The block-id in x (or x-offset).
y	The block-id in y (or y-offset).

Returns

Pointer to the required data block.

getMaxNumberOfCacheBlocks()

unsigned int te::rst::SynchronizedBandBlocksManager::getMaxNumberOfCacheBlocks ( ) const

inline

The maximum number of cache blocks.

Definition at line 114 of file SynchronizedBandBlocksManager.h.

getRaster()

te::rst::Raster * te::rst::SynchronizedBandBlocksManager::getRaster

(

)

const

Returns the associated raster.

getSynchronizer()

RasterSynchronizer * te::rst::SynchronizedBandBlocksManager::getSynchronizer ( ) const

inline

Return a pointer to the assotiated synchronizer instance or NULL if there is none.

Definition at line 120 of file SynchronizedBandBlocksManager.h.

initialize() [1/2]

bool te::rst::SynchronizedBandBlocksManager::initialize	(	const unsigned int	maxNumberOfCacheBlocks,
		RasterSynchronizer &	sync
	)

Initialize this instance to an initial state.

Parameters

sync	The synchronized used by this instance.
maxNumberOfCacheBlocks	The maximum number of cache blocks.

Returns

true if OK, false on errors.

Note

For the case where using the write raster access policy: The use of multiple cached blocks can cause deadlocks if multiple threads are locking blocks needed by other threads, use it with caution!

initialize() [2/2]

bool te::rst::SynchronizedBandBlocksManager::initialize	(	RasterSynchronizer &	sync,
		const unsigned char	maxMemPercentUsed
	)

Initialize this instance to an initial state.

Parameters

sync	The synchronized used by this instance.
maxMemPercentUsed	The maximum free memory percentual to use valid range: [1:100].

Returns

true if OK, false on errors.

Note

For the case where using the write raster access policy: The use of multiple cached blocks can cause deadlocks if multiple threads are locking blocks needed by other threads, use it with caution!

initState()

void te::rst::SynchronizedBandBlocksManager::initState ( )

private

Initialize this instance to an initial state.

isInitialized()

bool te::rst::SynchronizedBandBlocksManager::isInitialized ( ) const

inline

Returns true if this instance is initialized.

Returns

true if this instance is initialized.

Definition at line 88 of file SynchronizedBandBlocksManager.h.

Member Data Documentation

m_blocksFifo

std::vector< BlockIndex > te::rst::SynchronizedBandBlocksManager::m_blocksFifo

protected

blocks swap FIFO.

Definition at line 169 of file SynchronizedBandBlocksManager.h.

m_blocksFifoNextSwapBlockIndex

unsigned int te::rst::SynchronizedBandBlocksManager::m_blocksFifoNextSwapBlockIndex

protected

The next block swapp index over m_blocksFifo.

Definition at line 160 of file SynchronizedBandBlocksManager.h.

m_blocksHandler

std::vector< unsigned char* > te::rst::SynchronizedBandBlocksManager::m_blocksHandler

protected

Cache blocks handler.

Definition at line 167 of file SynchronizedBandBlocksManager.h.

m_blocksPointers

std::vector< std::vector< std::vector< unsigned char* > > > te::rst::SynchronizedBandBlocksManager::m_blocksPointers

protected

3D Matrix of block pointers indexed as [band][blockYIndex][blockXIndex].

Definition at line 165 of file SynchronizedBandBlocksManager.h.

m_getBlockPointer_BlkPtr

unsigned char* te::rst::SynchronizedBandBlocksManager::m_getBlockPointer_BlkPtr

protected

Definition at line 163 of file SynchronizedBandBlocksManager.h.

m_globalBlockSizeBytes

unsigned int te::rst::SynchronizedBandBlocksManager::m_globalBlockSizeBytes

protected

The maximum block size for all bands.

Definition at line 156 of file SynchronizedBandBlocksManager.h.

m_globalBlocksNumberX

unsigned int te::rst::SynchronizedBandBlocksManager::m_globalBlocksNumberX

protected

The maximum number of blocks (X axis) for all bands.

Definition at line 152 of file SynchronizedBandBlocksManager.h.

m_globalBlocksNumberY

unsigned int te::rst::SynchronizedBandBlocksManager::m_globalBlocksNumberY

protected

The maximum number of blocks (Y axis) for all bands.

Definition at line 154 of file SynchronizedBandBlocksManager.h.

m_maxNumberOfCacheBlocks

unsigned int te::rst::SynchronizedBandBlocksManager::m_maxNumberOfCacheBlocks

protected

The maximum number of cache blocks.

Definition at line 158 of file SynchronizedBandBlocksManager.h.

m_syncPtr

RasterSynchronizer* te::rst::SynchronizedBandBlocksManager::m_syncPtr

protected

A pointer to the synchronizer used by this instance, of null if not initialized.

Definition at line 150 of file SynchronizedBandBlocksManager.h.

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

• /home/castejon/castejon_files/develop/terralib5/git_release/src/terralib/raster/SynchronizedBandBlocksManager.h