Public Member Functions | Protected Member Functions | Private Member Functions | Private Attributes | List of all members
LargeSegmentSet Class Reference

#include <MemorySegment.hpp>

Inheritance diagram for LargeSegmentSet:
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Public Member Functions

 LargeSegmentSet ()
 
 LargeSegmentSet (RexxMemory *memory)
 
virtual ~LargeSegmentSet ()
 
virtual void dumpMemoryProfile (FILE *outfile)
 
RexxObject * handleAllocationFailure (size_t allocationLength)
 
RexxObject * allocateObject (size_t allocationLength)
 
virtual DeadObject * donateObject (size_t allocationLength)
 
- Public Member Functions inherited from MemorySegmentSet
 MemorySegmentSet (RexxMemory *memObject, SegmentSetID id, const char *setName)
 
 MemorySegmentSet ()
 
virtual ~MemorySegmentSet ()
 
void * operator new (size_t size, void *segment)
 
void operator delete (void *size)
 
void operator delete (void *size, void *segment)
 
void removeSegment (MemorySegment *segment)
 
void removeSegmentAndStorage (MemorySegment *segment)
 
void add (MemorySegment *segment)
 
MemorySegment * first ()
 
MemorySegment * next (MemorySegment *segment)
 
bool isInSegmentSet (RexxObject *object)
 
void dumpSegments (FILE *keyfile, FILE *dumpfile)
 
void addSegment (MemorySegment *segment, bool createDeadObject=1)
 
void sweep ()
 
bool is (SegmentSetID id)
 
void gatherStats (MemoryStats *memStats, SegmentStats *stats)
 
virtual MemorySegment * donateSegment (size_t allocationLength)
 

Protected Member Functions

virtual void addDeadObject (DeadObject *object)
 
virtual void addDeadObject (char *object, size_t length)
 
virtual MemorySegment * allocateSegment (size_t requestLength, size_t minimumLength)
 
void expandOrCollect (size_t allocationLength)
 
void expandSegmentSet (size_t allocationLength)
 
virtual void prepareForSweep ()
 
void completeSweepOperation ()
 
- Protected Member Functions inherited from MemorySegmentSet
virtual void collectEmptySegments ()
 
RexxObject * splitDeadObject (DeadObject *object, size_t allocationLength, size_t splitMinimum)
 
void insertSegment (MemorySegment *segment)
 
MemorySegment * findEmptySegment (size_t allocationLength)
 
MemorySegment * splitSegment (size_t allocationLength)
 
void mergeSegments (size_t allocationLength)
 
void combineEmptySegments (MemorySegment *front, MemorySegment *back)
 
virtual size_t suggestMemoryExpansion ()
 
virtual size_t suggestMemoryContraction ()
 
MemorySegment * largestActiveSegment ()
 
MemorySegment * largestEmptySegment ()
 
void adjustMemorySize ()
 
void releaseEmptySegments (size_t releaseSize)
 
void releaseSegment (MemorySegment *segment)
 
bool newSegment (size_t requestLength, size_t minimumLength)
 
float freeMemoryPercentage ()
 
size_t totalFreeMemory ()
 
size_t calculateSegmentAllocation (size_t n)
 
void addSegments (size_t requiredSpace)
 
MemorySegment * getSegment (size_t requestLength, size_t minimumLength)
 
void activateEmptySegments ()
 
void validateObject (size_t bytes)
 

Private Member Functions

RexxObject * findObject (size_t allocationLength)
 

Private Attributes

DeadObjectPool deadCache
 
size_t requests
 
size_t smallestObject
 
size_t largestObject
 

Additional Inherited Members

- Public Types inherited from MemorySegmentSet
enum  SegmentSetID { SET_UNINITIALIZED , SET_NORMAL , SET_LARGEBLOCK , SET_OLDSPACE }
 
- Protected Attributes inherited from MemorySegmentSet
MemorySegment anchor
 
MemorySegment emptySegments
 
size_t count
 
size_t liveObjectBytes
 
size_t deadObjectBytes
 
SegmentSetID owner
 
const char * name
 
RexxMemory * memory
 

Detailed Description

Definition at line 539 of file MemorySegment.hpp.

Constructor & Destructor Documentation

◆ LargeSegmentSet() [1/2]

LargeSegmentSet::LargeSegmentSet ( )
inline

Definition at line 544 of file MemorySegment.hpp.

◆ LargeSegmentSet() [2/2]

LargeSegmentSet::LargeSegmentSet ( RexxMemory *  memory)

Definition at line 188 of file MemorySegment.cpp.

◆ ~LargeSegmentSet()

virtual LargeSegmentSet::~LargeSegmentSet ( )
inlinevirtual

Definition at line 546 of file MemorySegment.hpp.

Member Function Documentation

◆ addDeadObject() [1/2]

void LargeSegmentSet::addDeadObject ( char *  object,
size_t  length 
)
protectedvirtual

Reimplemented from MemorySegmentSet.

Definition at line 417 of file MemorySegment.cpp.

References DeadObjectPool::addSortedBySize(), deadCache, largestObject, and smallestObject.

◆ addDeadObject() [2/2]

void LargeSegmentSet::addDeadObject ( DeadObject *  object)
protectedvirtual

Reimplemented from MemorySegmentSet.

Definition at line 359 of file MemorySegment.cpp.

References DeadObjectPool::addSortedBySize(), and deadCache.

◆ allocateObject()

RexxObject* LargeSegmentSet::allocateObject ( size_t  allocationLength)
inline

Definition at line 549 of file MemorySegment.hpp.

References deadCache, DeadObjectPool::findBestFit(), LargeAllocationUnit, OREF_NULL, requests, and MemorySegmentSet::splitDeadObject().

Referenced by findObject(), RexxMemory::newObject(), and RexxMemory::newObjects().

◆ allocateSegment()

MemorySegment * LargeSegmentSet::allocateSegment ( size_t  requestLength,
size_t  minimumLength 
)
protectedvirtual

Reimplemented from MemorySegmentSet.

Definition at line 258 of file MemorySegment.cpp.

References MemorySegmentSet::memory, and RexxMemory::newLargeSegment().

◆ completeSweepOperation()

void LargeSegmentSet::completeSweepOperation ( )
protectedvirtual

Reimplemented from MemorySegmentSet.

Definition at line 1093 of file MemorySegment.cpp.

References largestObject, MemorySegmentSet::memory, smallestObject, and RexxMemory::verboseMessage().

◆ donateObject()

DeadObject * LargeSegmentSet::donateObject ( size_t  allocationLength)
virtual

Reimplemented from MemorySegmentSet.

Definition at line 543 of file MemorySegment.cpp.

References deadCache, and DeadObjectPool::findSmallestFit().

◆ dumpMemoryProfile()

void LargeSegmentSet::dumpMemoryProfile ( FILE *  outfile)
virtual

Reimplemented from MemorySegmentSet.

Definition at line 142 of file MemorySegment.cpp.

References deadCache, and DeadObjectPool::dumpMemoryProfile().

Referenced by RexxMemory::dumpMemoryProfile().

◆ expandOrCollect()

void LargeSegmentSet::expandOrCollect ( size_t  allocationLength)
protected

Definition at line 1473 of file MemorySegment.cpp.

References MemorySegmentSet::activateEmptySegments(), MemorySegmentSet::addSegment(), RexxMemory::collect(), expandSegmentSet(), MemorySegmentSet::findEmptySegment(), MemorySegmentSet::largestActiveSegment(), MemorySegmentSet::largestEmptySegment(), MemorySegmentSet::memory, MemoryThrashingThreshold, MemorySegmentSet::mergeSegments(), requests, and MemorySegment::size().

Referenced by handleAllocationFailure().

◆ expandSegmentSet()

void LargeSegmentSet::expandSegmentSet ( size_t  allocationLength)
protected

Definition at line 1700 of file MemorySegment.cpp.

References LargeSegmentDeadSpace, MemorySegmentSet::memory, MinimumSegmentSize, MemorySegmentSet::newSegment(), roundSegmentBoundary(), SegmentDeadSpace, and RexxMemory::verboseMessage().

Referenced by expandOrCollect(), and handleAllocationFailure().

◆ findObject()

RexxObject * LargeSegmentSet::findObject ( size_t  allocationLength)
private

Definition at line 1320 of file MemorySegment.cpp.

References allocateObject().

Referenced by handleAllocationFailure().

◆ handleAllocationFailure()

RexxObject * LargeSegmentSet::handleAllocationFailure ( size_t  allocationLength)

Definition at line 1331 of file MemorySegment.cpp.

References Error_System_resources, expandOrCollect(), expandSegmentSet(), findObject(), MemorySegmentSet::memory, MemorySegmentSet::mergeSegments(), OREF_NULL, reportException(), requests, and RexxMemory::scavengeSegmentSets().

Referenced by RexxMemory::newObject(), and RexxMemory::newObjects().

◆ prepareForSweep()

void LargeSegmentSet::prepareForSweep ( )
protectedvirtual

Reimplemented from MemorySegmentSet.

Definition at line 1030 of file MemorySegment.cpp.

References deadCache, DeadObjectPool::empty(), largestObject, MemorySegmentSet::prepareForSweep(), requests, and smallestObject.

Member Data Documentation

◆ deadCache

DeadObjectPool LargeSegmentSet::deadCache
private

Definition at line 583 of file MemorySegment.hpp.

Referenced by addDeadObject(), allocateObject(), donateObject(), dumpMemoryProfile(), and prepareForSweep().

◆ largestObject

size_t LargeSegmentSet::largestObject
private

Definition at line 586 of file MemorySegment.hpp.

Referenced by addDeadObject(), completeSweepOperation(), and prepareForSweep().

◆ requests

size_t LargeSegmentSet::requests
private

Definition at line 584 of file MemorySegment.hpp.

Referenced by allocateObject(), expandOrCollect(), handleAllocationFailure(), and prepareForSweep().

◆ smallestObject

size_t LargeSegmentSet::smallestObject
private

Definition at line 585 of file MemorySegment.hpp.

Referenced by addDeadObject(), completeSweepOperation(), and prepareForSweep().

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