com.hazelcast.internal.memory

Interface ConcurrentHeapMemoryAccessor

All Superinterfaces:

ByteAccessStrategy<Object>, HeapMemoryAccessor

All Known Subinterfaces:

GlobalMemoryAccessor

All Known Implementing Classes:

AlignmentAwareMemoryAccessor, StandardMemoryAccessor

public interface ConcurrentHeapMemoryAccessor
extends HeapMemoryAccessor

Extends HeapMemoryAccessor with concurrent operations.

Field Summary

Fields inherited from interface com.hazelcast.internal.memory.HeapMemoryAccessor

ARRAY_BOOLEAN_BASE_OFFSET, ARRAY_BOOLEAN_INDEX_SCALE, ARRAY_BYTE_BASE_OFFSET, ARRAY_BYTE_INDEX_SCALE, ARRAY_CHAR_BASE_OFFSET, ARRAY_CHAR_INDEX_SCALE, ARRAY_DOUBLE_BASE_OFFSET, ARRAY_DOUBLE_INDEX_SCALE, ARRAY_FLOAT_BASE_OFFSET, ARRAY_FLOAT_INDEX_SCALE, ARRAY_INT_BASE_OFFSET, ARRAY_INT_INDEX_SCALE, ARRAY_LONG_BASE_OFFSET, ARRAY_LONG_INDEX_SCALE, ARRAY_OBJECT_BASE_OFFSET, ARRAY_OBJECT_INDEX_SCALE, ARRAY_SHORT_BASE_OFFSET, ARRAY_SHORT_INDEX_SCALE

Method Summary

Modifier and Type	Method and Description
boolean	compareAndSwapInt(Object base, long offset, int expected, int x) Compares and swaps an int value to an expected value atomically based by given object with given offset, if and only if its current value is equal to the expected value.
boolean	compareAndSwapLong(Object base, long offset, long expected, long x) Compares and swaps a long value to an expected value atomically based by given object with given offset if and only if its current value equals to the expected value.
boolean	compareAndSwapObject(Object base, long offset, Object expected, Object x) Compares and swaps referenced object to expected object atomically based by given owner object at given offset if and only if its current object is the expected object.
boolean	getBooleanVolatile(Object base, long offset) Reads the boolean value as volatile from given object by its offset.
byte	getByteVolatile(Object base, long offset) Reads the byte value as volatile from given object by its offset.
char	getCharVolatile(Object base, long offset) Reads the char value as volatile from given object by its offset.
double	getDoubleVolatile(Object base, long offset) Reads the double value as volatile from given object by its offset.
float	getFloatVolatile(Object base, long offset) Reads the float value as volatile from given object by its offset.
int	getIntVolatile(Object base, long offset) Reads the int value as volatile from given object by its offset.
long	getLongVolatile(Object base, long offset) Reads the long value as volatile from given object by its offset.
Object	getObjectVolatile(Object base, long offset) Gets the referenced object from given owner object as volatile by its offset.
short	getShortVolatile(Object base, long offset) Reads the short value as volatile from given object by its offset.
void	putBooleanVolatile(Object base, long offset, boolean x) Writes the boolean value as volatile to given object by its offset.
void	putByteVolatile(Object base, long offset, byte x) Writes the byte value as volatile to given object by its offset.
void	putCharVolatile(Object base, long offset, char x) Writes the char value as volatile to given object by its offset.
void	putDoubleVolatile(Object base, long offset, double x) Writes the double value as volatile to given object by its offset.
void	putFloatVolatile(Object base, long offset, float x) Writes the float value as volatile to given object by its offset.
void	putIntVolatile(Object base, long offset, int x) Writes the int value as volatile to given object by its offset.
void	putLongVolatile(Object base, long offset, long x) Writes the long value as volatile to given object by its offset.
void	putObjectVolatile(Object base, long offset, Object x) Puts the referenced object to given owner object as volatile by its offset.
void	putOrderedInt(Object base, long offset, int x) Puts the given int value as ordered to the CPU write buffer based by the given object at the given offset.
void	putOrderedLong(Object base, long offset, long x) Puts the given long value as ordered to the CPU write buffer based by the given object at the given offset.
void	putOrderedObject(Object base, long offset, Object x) Puts the given referenced object as ordered to the CPU write buffer based by the given owner object at the given offset.
void	putShortVolatile(Object base, long offset, short x) Writes the short value as volatile to given object by its offset.

Methods inherited from interface com.hazelcast.internal.memory.HeapMemoryAccessor

arrayBaseOffset, arrayIndexScale, copyMemory, getBoolean, getByte, getChar, getDouble, getFloat, getInt, getLong, getObject, getShort, objectFieldOffset, putBoolean, putByte, putChar, putDouble, putFloat, putInt, putLong, putObject, putShort

Method Detail

getBooleanVolatile

boolean getBooleanVolatile(Object base,
                           long offset)

Reads the boolean value as volatile from given object by its offset.

Parameters:

base - the object where boolean value will be read from

offset - offset from object's base to the accessed location

Returns:

the boolean value that was read

putBooleanVolatile

void putBooleanVolatile(Object base,
                        long offset,
                        boolean x)

Writes the boolean value as volatile to given object by its offset.

Parameters:

base - the object where boolean value will be written to

offset - offset from object's base to the accessed location

x - the boolean value to be written

getByteVolatile

byte getByteVolatile(Object base,
                     long offset)

Reads the byte value as volatile from given object by its offset.

Parameters:

base - the object where the byte value will be read from

offset - offset from object's base to the accessed location

Returns:

the byte value that was read

putByteVolatile

void putByteVolatile(Object base,
                     long offset,
                     byte x)

Writes the byte value as volatile to given object by its offset.

Parameters:

base - the object where the byte value will be written to

offset - offset from object's base to the accessed location

x - the byte value to be written

getCharVolatile

char getCharVolatile(Object base,
                     long offset)

Reads the char value as volatile from given object by its offset.

Parameters:

base - the object where char value will be read from

offset - offset from object's base to the accessed location

Returns:

the char value that was read

putCharVolatile

void putCharVolatile(Object base,
                     long offset,
                     char x)

Writes the char value as volatile to given object by its offset.

Parameters:

base - the object where char value will be written to

offset - offset from object's base to the accessed location

x - the char value to be written

getShortVolatile

short getShortVolatile(Object base,
                       long offset)

Reads the short value as volatile from given object by its offset.

Parameters:

base - the object where short value will be read from

offset - offset from object's base to the accessed location

Returns:

the short value that ws read

putShortVolatile

void putShortVolatile(Object base,
                      long offset,
                      short x)

Writes the short value as volatile to given object by its offset.

Parameters:

base - the object where short value will be written to

offset - offset from object's base to the accessed location

x - the short value to be written

getIntVolatile

int getIntVolatile(Object base,
                   long offset)

Reads the int value as volatile from given object by its offset.

Parameters:

base - the object where int value will be read from

offset - offset from object's base to the accessed location

Returns:

the int value that was read

putIntVolatile

void putIntVolatile(Object base,
                    long offset,
                    int x)

Writes the int value as volatile to given object by its offset.

Parameters:

base - the object where int value will be written to

offset - offset from object's base to the accessed location

x - the int value to be written

getFloatVolatile

float getFloatVolatile(Object base,
                       long offset)

Reads the float value as volatile from given object by its offset.

Parameters:

base - the object where float value will be read from

offset - offset from object's base to the accessed location

Returns:

the float value that was read

putFloatVolatile

void putFloatVolatile(Object base,
                      long offset,
                      float x)

Writes the float value as volatile to given object by its offset.

Parameters:

base - the object where float value will be written to

offset - offset from object's base to the accessed location

x - the float value to be written

getLongVolatile

long getLongVolatile(Object base,
                     long offset)

Reads the long value as volatile from given object by its offset.

Parameters:

base - the object where long value will be read from

offset - offset from object's base to the accessed location

Returns:

the long value that was read

putLongVolatile

void putLongVolatile(Object base,
                     long offset,
                     long x)

Writes the long value as volatile to given object by its offset.

Parameters:

base - the object where long value will be written to

offset - offset from object's base to the accessed location

x - the long value to be written

getDoubleVolatile

double getDoubleVolatile(Object base,
                         long offset)

Reads the double value as volatile from given object by its offset.

Parameters:

base - the object where double value will be read from

offset - offset from object's base to the accessed location

Returns:

the double value that was read

putDoubleVolatile

void putDoubleVolatile(Object base,
                       long offset,
                       double x)

Writes the double value as volatile to given object by its offset.

Parameters:

base - the object where double value will be written to

offset - offset from object's base to the accessed location

x - the double value to be written

getObjectVolatile

Object getObjectVolatile(Object base,
                         long offset)

Gets the referenced object from given owner object as volatile by its offset.

Parameters:

base - the owner object where the referenced object will be read from

offset - offset from object's base to the accessed location

Returns:

the retrieved referenced object

putObjectVolatile

void putObjectVolatile(Object base,
                       long offset,
                       Object x)

Puts the referenced object to given owner object as volatile by its offset.

Parameters:

base - the owner object where the referenced object will be written to

offset - offset from object's base to the accessed location

x - the referenced object to be written

compareAndSwapInt

boolean compareAndSwapInt(Object base,
                          long offset,
                          int expected,
                          int x)

Compares and swaps an int value to an expected value atomically based by given object with given offset, if and only if its current value is equal to the expected value.

Parameters:

base - the object where int value will be written to

offset - offset from object's base to the accessed location

expected - the expected current int value to be set new int value

x - the int value to be written

Returns:

true if CAS is successful, false otherwise

compareAndSwapLong

boolean compareAndSwapLong(Object base,
                           long offset,
                           long expected,
                           long x)

Compares and swaps a long value to an expected value atomically based by given object with given offset if and only if its current value equals to the expected value.

Parameters:

base - the object where long value will be written to

offset - offset from object's base to the accessed location

expected - the expected current long value to be set new long value

x - the long value to be written

Returns:

true if CAS is successful, false otherwise

compareAndSwapObject

boolean compareAndSwapObject(Object base,
                             long offset,
                             Object expected,
                             Object x)

Compares and swaps referenced object to expected object atomically based by given owner object at given offset if and only if its current object is the expected object.

Parameters:

base - the owner object where the referenced object will be written to

offset - offset from object's base to the accessed location

expected - the expected current referenced object to be set to new referenced object

x - the new referenced object that will be written

Returns:

true if CAS is successful, false otherwise

putOrderedInt

void putOrderedInt(Object base,
                   long offset,
                   int x)

Puts the given int value as ordered to the CPU write buffer based by the given object at the given offset.

Parameters:

base - the object where the int value will be written to

offset - offset from object's base to the accessed location

x - the int value to be written

putOrderedLong

void putOrderedLong(Object base,
                    long offset,
                    long x)

Puts the given long value as ordered to the CPU write buffer based by the given object at the given offset.

Parameters:

base - the object where the long value will be written to

offset - offset from object's base to the accessed location

x - the long value to be written

putOrderedObject

void putOrderedObject(Object base,
                      long offset,
                      Object x)

Puts the given referenced object as ordered to the CPU write buffer based by the given owner object at the given offset.

Parameters:

base - the owner object where the referenced object will be written to

offset - offset from object's base to the accessed location

x - the referenced object to be written