jeco.dmm.sim2.lib.allocator
Class SegregatedFreeList

java.lang.Object
  jeco.dmm.sim2.lib.allocator.Allocator
      jeco.dmm.sim2.lib.allocator.SegregatedFreeList

Direct Known Subclasses:

SegregatedFit, SimpleSegregatedStorage

public class SegregatedFreeList
extends Allocator

Important notes: we can omit header information. It is only useful for maintaining the free-blocks sortered in every ADM. This information is lost when the block in allocated. Since we are keeping the internal structure of ADMS by simulation, we do not have to take into account his kind of headers.

Author:

jlrisco

Field Summary

Fields inherited from class jeco.dmm.sim2.lib.allocator.Allocator

allowCoalescing, allowSplitting, freeLists, maxSizeInB, metrics, minSizeInB

Constructor Summary

SegregatedFreeList(long minSizeInB, long maxSizeInB, boolean allowSplitting, boolean allowCoalescing)

Method Summary

Block	malloc(long sizeInB, Block hottest) We just enter here if we are sure that this allocator is the correct one.
void	setup(FreeList.DATA_STRUCTURE dataStructure, FreeList.ALLOCATION_MECHANISM fitAlgorithm, FreeList.ALLOCATION_POLICY policy)

Methods inherited from class jeco.dmm.sim2.lib.allocator.Allocator

add, canManage, getFreeLists, getMaxSizeInB, getMinSizeInB, isAllowCoalescing, isAllowSplitting, setMaxSizeInB, setMetrics, setMinSizeInB

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SegregatedFreeList

public SegregatedFreeList(long minSizeInB,
                          long maxSizeInB,
                          boolean allowSplitting,
                          boolean allowCoalescing)

Method Detail

setup

public void setup(FreeList.DATA_STRUCTURE dataStructure,
                  FreeList.ALLOCATION_MECHANISM fitAlgorithm,
                  FreeList.ALLOCATION_POLICY policy)

Specified by:

setup in class Allocator

malloc

public Block malloc(long sizeInB,
                    Block hottest)

We just enter here if we are sure that this allocator is the correct one.

Specified by:

malloc in class Allocator

Parameters:

sizeInB - Size in bytes

hottest - For reliability purposes, the hottest block

Returns:

The block created