A dummy swap that just copies swapped out chunks to a different location in ram. More...

#include <managedDummySwap.h>

Inheritance diagram for rambrain::managedDummySwap:

Public Member Functions
	managedDummySwap (rambrain::global_bytesize size)

virtual	~managedDummySwap ()

virtual global_bytesize	swapIn (managedMemoryChunk **chunklist, unsigned int nchunks)
	Trigger swap in of the chunks pointed to by chunklist. More...

virtual global_bytesize	swapIn (managedMemoryChunk *chunk)
	Trigger swap in of the chunk pointed to by chunk. More...

virtual global_bytesize	swapOut (managedMemoryChunk **chunklist, unsigned int nchunks)
	Trigger swap out of the chunks pointed to by chunklist. More...

virtual global_bytesize	swapOut (managedMemoryChunk *chunk)
	Trigger swap out of the chunk pointed to by chunk. More...

virtual void	swapDelete (managedMemoryChunk *chunk)
	Mark chunk as deleted. More...

virtual void	close ()
	Close the swap if not already closed. More...

Public Member Functions inherited from rambrain::managedSwap
	managedSwap (global_bytesize size)

virtual	~managedSwap ()

virtual bool	extendSwapByPolicy (global_bytesize min_size)
	extend swap by policy More...

virtual bool	extendSwap (global_bytesize size)
	extend swap by size number of bytes More...

virtual global_bytesize	getSwapSize () const
	Simple getter. More...

virtual global_bytesize	getUsedSwap () const
	Simple getter. More...

virtual global_bytesize	getFreeSwap () const
	Simple getter. More...

virtual swapPolicy	getSwapPolicy () const

virtual swapPolicy	setSwapPolicy (swapPolicy newPolicy)

size_t	getMemoryAlignment () const
	Returns possible memory alignment restrictions. More...

void	claimUsageof (global_bytesize bytes, bool rambytes, bool used)
	account for memory usage change More...

void	waitForCleanExit ()
	Function waits for all asynchronous IO to complete. The wait is implemented non-performant as a normal user does not have to wait for this. Implementing this with a _cond just destroys performance in the respective swapIn/out procedures without increasing any user space functionality. More...

virtual bool	checkForAIO ()

virtual bool	cleanupCachedElements (rambrain::global_bytesize minimum_size=0)
	throws out cached elements still in ram but also resident on disk. This makes space in situations of low swap memory More...

virtual void	invalidateCacheFor (managedMemoryChunk &chunk)
	tells managedFileSwap that the chunk under consideration might have been changed by user and needs to be copied out freshly More...

Additional Inherited Members
Protected Attributes inherited from rambrain::managedSwap
global_bytesize	swapSize

global_bytesize	swapUsed

global_bytesize	swapFree

unsigned int	totalSwapActionsQueued = 0

size_t	memoryAlignment = 1

swapPolicy	policy = swapPolicy::fixed

bool	closed = false

Detailed Description

A dummy swap that just copies swapped out chunks to a different location in ram.

Note: there is no productive use of this class, it simly serves testing purpuses for the managedMemory derivated classes

Definition at line 31 of file managedDummySwap.h.

Constructor & Destructor Documentation

rambrain::managedDummySwap::managedDummySwap ( rambrain::global_bytesize size )

Definition at line 29 of file managedDummySwap.cpp.

virtual rambrain::managedDummySwap::~managedDummySwap ( )

inlinevirtual

Definition at line 35 of file managedDummySwap.h.

Member Function Documentation

virtual void rambrain::managedDummySwap::close ( )

inlinevirtual

Close the swap if not already closed.

Note: Not automatically done by destructor

Warning: Swap can not be used anymore afterwards

Implements rambrain::managedSwap.

Definition at line 45 of file managedDummySwap.h.

void rambrain::managedDummySwap::swapDelete ( managedMemoryChunk * chunk )

virtual

Mark chunk as deleted.

Note: this is only called when deleting a chunk in managedMemory if chunk->swapBuf is not NULL; this function must be called having stateChangeMutex acquired.

Implements rambrain::managedSwap.

Definition at line 111 of file managedDummySwap.cpp.

global_bytesize rambrain::managedDummySwap::swapIn	(	managedMemoryChunk **	chunklist,
		unsigned int	nchunks
	)

virtual

Trigger swap in of the chunks pointed to by chunklist.

Note: this function must be called having stateChangeMutex acquired.

Implements rambrain::managedSwap.

Definition at line 101 of file managedDummySwap.cpp.

global_bytesize rambrain::managedDummySwap::swapIn ( managedMemoryChunk * chunk )

virtual

Trigger swap in of the chunk pointed to by chunk.

Note: this function must be called having stateChangeMutex acquired.

We are not writing asynchronous, thus, we have to signal that we're done reading...

Implements rambrain::managedSwap.

Definition at line 75 of file managedDummySwap.cpp.

global_bytesize rambrain::managedDummySwap::swapOut	(	managedMemoryChunk **	chunklist,
		unsigned int	nchunks
	)

virtual

Trigger swap out of the chunks pointed to by chunklist.

Note: this function must be called having stateChangeMutex acquired.

Implements rambrain::managedSwap.

Definition at line 65 of file managedDummySwap.cpp.

global_bytesize rambrain::managedDummySwap::swapOut ( managedMemoryChunk * chunk )

virtual

Trigger swap out of the chunk pointed to by chunk.

Note: this function must be called having stateChangeMutex acquired.

We are not writing asynchronous, thus, we have to signal that we're done writing...

Implements rambrain::managedSwap.

Definition at line 35 of file managedDummySwap.cpp.

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

/home/rambrainbuild/docubrain/src/managedDummySwap.h
/home/rambrainbuild/docubrain/src/managedDummySwap.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation