one.microstream.memory.sun

Class JdkInternals

java.lang.Object

one.microstream.memory.sun.JdkInternals

public final class JdkInternals
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	JdkInternals.Warning

Method Summary

Modifier and Type	Method and Description
static long	alignAddress(long address)
static long	allocateMemory(long bytes)
static byte[]	asByteArray(long value)
static byte[]	asByteArray(long[] longArray)
static long	byteSizeArray_boolean(long elementCount)
static long	byteSizeArray_byte(long elementCount)
static long	byteSizeArray_char(long elementCount)
static long	byteSizeArray_double(long elementCount)
static long	byteSizeArray_float(long elementCount)
static long	byteSizeArray_int(long elementCount)
static long	byteSizeArray_long(long elementCount)
static long	byteSizeArray_short(long elementCount)
static long	byteSizeArrayObject(long elementCount)
static int	byteSizeFieldValue(Class<?> type)
static int	byteSizeInstance(Class<?> type)
static int	byteSizeObjectHeader()
static int	byteSizeReference()
static boolean	compareAndSwap_int(Object subject, long offset, int expected, int replacement)
static boolean	compareAndSwap_long(Object subject, long offset, long expected, long replacement)
static boolean	compareAndSwapObject(Object subject, long offset, Object expected, Object replacement)
static void	copyArrayToAddress(boolean[] array, long targetAddress)
static void	copyArrayToAddress(byte[] array, long targetAddress)
static void	copyArrayToAddress(char[] array, long targetAddress)
static void	copyArrayToAddress(double[] array, long targetAddress)
static void	copyArrayToAddress(float[] array, long targetAddress)
static void	copyArrayToAddress(int[] array, long targetAddress)
static void	copyArrayToAddress(long[] array, long targetAddress)
static void	copyArrayToAddress(short[] array, long targetAddress)
static void	copyRange(long sourceAddress, long targetAddress, long length)
static void	copyRange(Object source, long sourceOffset, Object target, long targetOffset, long length)
static void	copyRangeToArray(long sourceAddress, boolean[] target)
static void	copyRangeToArray(long sourceAddress, byte[] target)
static void	copyRangeToArray(long sourceAddress, char[] target)
static void	copyRangeToArray(long sourceAddress, double[] target)
static void	copyRangeToArray(long sourceAddress, float[] target)
static void	copyRangeToArray(long sourceAddress, int[] target)
static void	copyRangeToArray(long sourceAddress, long[] target)
static void	copyRangeToArray(long sourceAddress, short[] target)
static MemoryStatistics	createHeapMemoryStatistics()
static MemoryStatistics	createNonHeapMemoryStatistics()
static boolean	deallocateDirectBuffer(ByteBuffer directBuffer)
static DirectBufferDeallocator	DirectBufferDeallocator()
static void	ensureClassInitialized(Class<?>... classes)
static void	ensureClassInitialized(Class<?> c)
static void	fillMemory(long address, long length, byte value)
static void	freeMemory(long address)
static boolean	get_boolean(long address)
static boolean	get_boolean(Object instance, long offset)
static byte	get_byte(long address)
static byte	get_byte(Object instance, long offset)
static char	get_char(long address)
static char	get_char(Object instance, long offset)
static double	get_double(long address)
static double	get_double(Object instance, long offset)
static float	get_float(long address)
static float	get_float(Object instance, long offset)
static int	get_int(long address)
static int	get_int(Object instance, long offset)
static long	get_long(long address)
static long	get_long(Object instance, long offset)
static short	get_short(long address)
static short	get_short(Object instance, long offset)
static DirectBufferAddressGetter	getDirectBufferAddressGetter()
static DirectBufferDeallocator	getDirectBufferDeallocator()
static long	getDirectByteBufferAddress(ByteBuffer directBuffer)
static sun.misc.Unsafe	getMemoryAccess()
static Object	getObject(Object instance, long offset)
static Object	getStaticFieldBase(Field field)
static long[]	getStaticFieldOffsets(Field[] fields)
static void	guaranteeUsability() Guarantees the full usability of this class by validating if all functionality is usable.
static List<JdkInternals.Warning>	initializationWarnings()
static <T> T	instantiateBlank(Class<T> c)
static DefaultInstantiator	InstantiatorBlank()
static boolean	internalDeallocateDirectBuffer(ByteBuffer directBuffer)
static long	internalGetDirectByteBufferAddress(ByteBuffer directBuffer)
static long	objectFieldOffset(Field field) Return the field value's arithmetic memory offset relative to the object base offset.
static long[]	objectFieldOffsets(Field... fields) Array alias vor #objectFieldOffset(Field).
static int	pageSize()
static void	printInitializationWarnings(PrintStream printStream)
static long	reallocateMemory(long address, long bytes)
static void	set_boolean(long address, boolean value)
static void	set_boolean(Object instance, long offset, boolean value)
static void	set_booleanInBytes(byte[] bytes, int index, boolean value)
static void	set_byte(long address, byte value)
static void	set_byte(Object instance, long offset, byte value)
static void	set_byteInBytes(byte[] bytes, int index, byte value)
static void	set_char(long address, char value)
static void	set_char(Object instance, long offset, char value)
static void	set_charInBytes(byte[] bytes, int index, char value)
static void	set_double(long address, double value)
static void	set_double(Object instance, long offset, double value)
static void	set_doubleInBytes(byte[] bytes, int index, double value)
static void	set_float(long address, float value)
static void	set_float(Object instance, long offset, float value)
static void	set_floatInBytes(byte[] bytes, int index, float value)
static void	set_int(long address, int value)
static void	set_int(Object instance, long offset, int value)
static void	set_intInBytes(byte[] bytes, int index, int value)
static void	set_long(long address, long value)
static void	set_long(Object instance, long offset, long value)
static void	set_longInBytes(byte[] bytes, int index, long value)
static void	set_short(long address, short value)
static void	set_short(Object instance, long offset, short value)
static void	set_shortInBytes(byte[] bytes, int index, short value)
static void	setDirectBufferAddressGetter(DirectBufferAddressGetter addressGetter) Allows to set the DirectBufferAddressGetter used by getDirectByteBufferAddress(ByteBuffer) as an override to the means this class inherently tries to provide. See DirectBufferAddressGetter for details.
static void	setDirectBufferDeallocator(DirectBufferDeallocator deallocator) Allows to set the DirectBufferDeallocator used by deallocateDirectBuffer(ByteBuffer) as an override to the means this class inherently tries to provide. See DirectBufferDeallocator for details.
static void	setObject(Object instance, long offset, Object value)
static void	throwUnchecked(Throwable t)
static sun.misc.Unsafe	VM()

Methods inherited from class java.lang.Object

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

Method Detail

VM

public static sun.misc.Unsafe VM()

getMemoryAccess

public static final sun.misc.Unsafe getMemoryAccess()

guaranteeUsability

public static void guaranteeUsability()

Guarantees the full usability of this class by validating if all functionality is usable.

Throws:

Error - if not all functionality is usable

initializationWarnings

public static final List<JdkInternals.Warning> initializationWarnings()

printInitializationWarnings

public static final void printInitializationWarnings(PrintStream printStream)

setDirectBufferDeallocator

public static void setDirectBufferDeallocator(DirectBufferDeallocator deallocator)

Allows to set the DirectBufferDeallocator used by deallocateDirectBuffer(ByteBuffer) as an override to the means this class inherently tries to provide.
See DirectBufferDeallocator for details.

The passed instance "should" be immutable or better stateless to ensure concurrency-safe usage, but ultimately, the responsibility resides with the author of the instance's implementation.

Passing a null resets the behavior of deallocateDirectBuffer(ByteBuffer) to the inherent logic.

Parameters:

deallocator - the deallocator to be used, potentially null.

See Also:

DirectBufferDeallocator

getDirectBufferDeallocator

public static DirectBufferDeallocator getDirectBufferDeallocator()

setDirectBufferAddressGetter

public static void setDirectBufferAddressGetter(DirectBufferAddressGetter addressGetter)

Allows to set the DirectBufferAddressGetter used by getDirectByteBufferAddress(ByteBuffer) as an override to the means this class inherently tries to provide.
See DirectBufferAddressGetter for details.

The passed instance "should" be immutable or better stateless to ensure concurrency-safe usage, but ultimately, the responsibility resides with the author of the instance's implementation.

Passing a null resets the behavior of getDirectByteBufferAddress(ByteBuffer) to the inherent logic.

Parameters:

addressGetter - the addressGetter to be used, potentially null.

See Also:

DirectBufferDeallocator

getDirectBufferAddressGetter

public static DirectBufferAddressGetter getDirectBufferAddressGetter()

internalGetDirectByteBufferAddress

public static final long internalGetDirectByteBufferAddress(ByteBuffer directBuffer)

getDirectByteBufferAddress

public static final long getDirectByteBufferAddress(ByteBuffer directBuffer)

internalDeallocateDirectBuffer

public static final boolean internalDeallocateDirectBuffer(ByteBuffer directBuffer)

deallocateDirectBuffer

public static final boolean deallocateDirectBuffer(ByteBuffer directBuffer)

allocateMemory

public static final long allocateMemory(long bytes)

reallocateMemory

public static final long reallocateMemory(long address,
                                          long bytes)

freeMemory

public static final void freeMemory(long address)

fillMemory

public static final void fillMemory(long address,
                                    long length,
                                    byte value)

get_byte

public static final byte get_byte(long address)

get_boolean

public static final boolean get_boolean(long address)

get_short

public static final short get_short(long address)

get_char

public static final char get_char(long address)

get_int

public static final int get_int(long address)

get_float

public static final float get_float(long address)

get_long

public static final long get_long(long address)

get_double

public static final double get_double(long address)

get_byte

public static byte get_byte(Object instance,
                            long offset)

get_boolean

public static boolean get_boolean(Object instance,
                                  long offset)

get_short

public static short get_short(Object instance,
                              long offset)

get_char

public static char get_char(Object instance,
                            long offset)

get_int

public static int get_int(Object instance,
                          long offset)

get_float

public static float get_float(Object instance,
                              long offset)

get_long

public static long get_long(Object instance,
                            long offset)

get_double

public static double get_double(Object instance,
                                long offset)

getObject

public static Object getObject(Object instance,
                               long offset)

set_byte

public static void set_byte(long address,
                            byte value)

set_boolean

public static void set_boolean(long address,
                               boolean value)

set_short

public static void set_short(long address,
                             short value)

set_char

public static void set_char(long address,
                            char value)

set_int

public static void set_int(long address,
                           int value)

set_float

public static void set_float(long address,
                             float value)

set_long

public static void set_long(long address,
                            long value)

set_double

public static void set_double(long address,
                              double value)

set_byte

public static final void set_byte(Object instance,
                                  long offset,
                                  byte value)

set_boolean

public static final void set_boolean(Object instance,
                                     long offset,
                                     boolean value)

set_short

public static void set_short(Object instance,
                             long offset,
                             short value)

set_char

public static final void set_char(Object instance,
                                  long offset,
                                  char value)

set_int

public static final void set_int(Object instance,
                                 long offset,
                                 int value)

set_float

public static final void set_float(Object instance,
                                   long offset,
                                   float value)

set_long

public static final void set_long(Object instance,
                                  long offset,
                                  long value)

set_double

public static final void set_double(Object instance,
                                    long offset,
                                    double value)

setObject

public static final void setObject(Object instance,
                                   long offset,
                                   Object value)

set_byteInBytes

public static final void set_byteInBytes(byte[] bytes,
                                         int index,
                                         byte value)

set_booleanInBytes

public static final void set_booleanInBytes(byte[] bytes,
                                            int index,
                                            boolean value)

set_shortInBytes

public static final void set_shortInBytes(byte[] bytes,
                                          int index,
                                          short value)

set_charInBytes

public static final void set_charInBytes(byte[] bytes,
                                         int index,
                                         char value)

set_intInBytes

public static final void set_intInBytes(byte[] bytes,
                                        int index,
                                        int value)

set_floatInBytes

public static final void set_floatInBytes(byte[] bytes,
                                          int index,
                                          float value)

set_longInBytes

public static final void set_longInBytes(byte[] bytes,
                                         int index,
                                         long value)

set_doubleInBytes

public static final void set_doubleInBytes(byte[] bytes,
                                           int index,
                                           double value)

copyRange

public static final void copyRange(long sourceAddress,
                                   long targetAddress,
                                   long length)

copyRange

public static final void copyRange(Object source,
                                   long sourceOffset,
                                   Object target,
                                   long targetOffset,
                                   long length)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          byte[] target)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          boolean[] target)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          short[] target)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          char[] target)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          int[] target)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          float[] target)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          long[] target)

copyRangeToArray

public static final void copyRangeToArray(long sourceAddress,
                                          double[] target)

copyArrayToAddress

public static final void copyArrayToAddress(byte[] array,
                                            long targetAddress)

copyArrayToAddress

public static final void copyArrayToAddress(boolean[] array,
                                            long targetAddress)

copyArrayToAddress

public static final void copyArrayToAddress(short[] array,
                                            long targetAddress)

copyArrayToAddress

public static final void copyArrayToAddress(char[] array,
                                            long targetAddress)

copyArrayToAddress

public static final void copyArrayToAddress(int[] array,
                                            long targetAddress)

copyArrayToAddress

public static final void copyArrayToAddress(float[] array,
                                            long targetAddress)

copyArrayToAddress

public static final void copyArrayToAddress(long[] array,
                                            long targetAddress)

copyArrayToAddress

public static final void copyArrayToAddress(double[] array,
                                            long targetAddress)

asByteArray

public static final byte[] asByteArray(long[] longArray)

asByteArray

public static final byte[] asByteArray(long value)

objectFieldOffset

public static final long objectFieldOffset(Field field)

Return the field value's arithmetic memory offset relative to the object base offset.

Parameters:

field - the field to get the offset for

Returns:

the field value's memory offset.

objectFieldOffsets

public static final long[] objectFieldOffsets(Field... fields)

Array alias vor #objectFieldOffset(Field).

Parameters:

fields - the fields to get the offset for

Returns:

the fields values' memory offsets.

ensureClassInitialized

public static final void ensureClassInitialized(Class<?> c)

ensureClassInitialized

public static final void ensureClassInitialized(Class<?>... classes)

instantiateBlank

public static final <T> T instantiateBlank(Class<T> c)
                                    throws InstantiationRuntimeException

Throws:

InstantiationRuntimeException

InstantiatorBlank

public static final DefaultInstantiator InstantiatorBlank()

DirectBufferDeallocator

public static final DirectBufferDeallocator DirectBufferDeallocator()

pageSize

public static int pageSize()

byteSizeReference

public static final int byteSizeReference()

byteSizeInstance

public static int byteSizeInstance(Class<?> type)

byteSizeObjectHeader

public static final int byteSizeObjectHeader()

byteSizeFieldValue

public static final int byteSizeFieldValue(Class<?> type)

byteSizeArray_byte

public static final long byteSizeArray_byte(long elementCount)

byteSizeArray_boolean

public static final long byteSizeArray_boolean(long elementCount)

byteSizeArray_short

public static final long byteSizeArray_short(long elementCount)

byteSizeArray_char

public static final long byteSizeArray_char(long elementCount)

byteSizeArray_int

public static final long byteSizeArray_int(long elementCount)

byteSizeArray_float

public static final long byteSizeArray_float(long elementCount)

byteSizeArray_long

public static final long byteSizeArray_long(long elementCount)

byteSizeArray_double

public static final long byteSizeArray_double(long elementCount)

byteSizeArrayObject

public static final long byteSizeArrayObject(long elementCount)

throwUnchecked

public static final void throwUnchecked(Throwable t)

compareAndSwap_int

public static final boolean compareAndSwap_int(Object subject,
                                               long offset,
                                               int expected,
                                               int replacement)

compareAndSwap_long

public static final boolean compareAndSwap_long(Object subject,
                                                long offset,
                                                long expected,
                                                long replacement)

compareAndSwapObject

public static final boolean compareAndSwapObject(Object subject,
                                                 long offset,
                                                 Object expected,
                                                 Object replacement)

alignAddress

public static final long alignAddress(long address)

getStaticFieldBase

public static Object getStaticFieldBase(Field field)

getStaticFieldOffsets

public static long[] getStaticFieldOffsets(Field[] fields)

createHeapMemoryStatistics

public static MemoryStatistics createHeapMemoryStatistics()

createNonHeapMemoryStatistics

public static MemoryStatistics createNonHeapMemoryStatistics()