de.mirkosertic.bytecoder.classlib

Class MemoryManager

java.lang.Object

de.mirkosertic.bytecoder.classlib.MemoryManager

public class MemoryManager
extends Object

A simple Memory Manager. It basically holds two linked lists. One for the free memory blocks, and one for the reserved blocks.

Constructor Summary

Constructors

Constructor and Description
MemoryManager()

Method Summary

Modifier and Type	Method and Description
static void	free(int aPointer)
static int	freeMem()
static int	GC()
static int	getGCEpoch()
static int	IncrementalGC(int blockLimit)
static int	indexInAllocationList(int aObjectPtr)
static int	indexInFreeList(int aObjectPtr)
static void	initNative()
static void	initStackArray(int aPtr, int aSize, int aType, int aVTableIndex)
static void	initStackObject(int aPtr, int aSize, int aType, int aVTableIndex)
static boolean	isUsedAsCallback(int aPtr)
static boolean	isUsedByHeap(int aAllocationPtr)
static boolean	isUsedByHeapUserSpace(int aPtrToObject)
static boolean	isUsedByStack(int aOwningBlock)
static boolean	isUsedByStackUserSpace(int aPtrToObject)
static boolean	isUsedByStaticData(int aOwningBlock)
static boolean	isUsedByStaticDataUserSpace(int aPtrToObject)
static int	log(int amount)
static void	logAllocationDetails(int start, int prev, int next)
static void	logAllocations()
static int	malloc(int aSize)
static int	newArray(int aSize, int aType, int aVTableIndex)
static int	newArray(int aSize1, int aSize2, int aType, int aVTableIndex)
static int	newObject(int aSize, int aType, int aVTableIndex)
static void	printObjectDebug(Object o)
static void	printObjectDebugInternal(Object o, int indexAlloc, int indexFree, boolean usedByStack, boolean usedByHeap)
static int	usedMem()

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryManager

public MemoryManager()

Method Detail

log

public static int log(int amount)

initNative

public static void initNative()

getGCEpoch

public static int getGCEpoch()

freeMem

public static int freeMem()

usedMem

public static int usedMem()

free

public static void free(int aPointer)

malloc

public static int malloc(int aSize)

newObject

public static int newObject(int aSize,
                            int aType,
                            int aVTableIndex)

initStackObject

public static void initStackObject(int aPtr,
                                   int aSize,
                                   int aType,
                                   int aVTableIndex)

initStackArray

public static void initStackArray(int aPtr,
                                  int aSize,
                                  int aType,
                                  int aVTableIndex)

isUsedByStaticData

public static boolean isUsedByStaticData(int aOwningBlock)

isUsedByStaticDataUserSpace

public static boolean isUsedByStaticDataUserSpace(int aPtrToObject)

isUsedByStack

public static boolean isUsedByStack(int aOwningBlock)

isUsedByStackUserSpace

public static boolean isUsedByStackUserSpace(int aPtrToObject)

isUsedByHeap

public static boolean isUsedByHeap(int aAllocationPtr)

isUsedByHeapUserSpace

public static boolean isUsedByHeapUserSpace(int aPtrToObject)

isUsedAsCallback

public static boolean isUsedAsCallback(int aPtr)

GC

public static int GC()

IncrementalGC

public static int IncrementalGC(int blockLimit)

newArray

public static int newArray(int aSize,
                           int aType,
                           int aVTableIndex)

newArray

public static int newArray(int aSize1,
                           int aSize2,
                           int aType,
                           int aVTableIndex)

logAllocations

public static void logAllocations()

logAllocationDetails

public static void logAllocationDetails(int start,
                                        int prev,
                                        int next)

indexInAllocationList

public static int indexInAllocationList(int aObjectPtr)

indexInFreeList

public static int indexInFreeList(int aObjectPtr)

printObjectDebug

public static void printObjectDebug(Object o)

printObjectDebugInternal

public static void printObjectDebugInternal(Object o,
                                            int indexAlloc,
                                            int indexFree,
                                            boolean usedByStack,
                                            boolean usedByHeap)