Unsafe

Artifact: androidx.performance:performance-unsafe

View Source

Added in 1.0.0-alpha01

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Kotlin |Java

public final class Unsafe

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Summary

Constants
static final int	INVALID_FIELD_OFFSET = -1

Public methods
native int	addressSize()
native Object	allocateInstance(Class<Object> c)
native long	allocateMemory(long bytes)
int	arrayBaseOffset(Class<Object> clazz)
int	arrayIndexScale(Class<Object> clazz)
native boolean	compareAndSwapInt(     Object obj,     long offset,     int expectedValue,     int newValue )
native boolean	compareAndSwapLong(     Object obj,     long offset,     long expectedValue,     long newValue )
native boolean	compareAndSwapObject(     Object obj,     long offset,     Object expectedValue,     Object newValue )
native void	copyMemory(long srcAddr, long dstAddr, long bytes)
native void	copyMemoryFromPrimitiveArray(     Object src,     long srcOffset,     long dstAddr,     long bytes )
native void	copyMemoryToPrimitiveArray(     long srcAddr,     Object dst,     long dstOffset,     long bytes )
native void	freeMemory(long address)
native void	fullFence()
int	getAndAddInt(Object o, long offset, int delta)
long	getAndAddLong(Object o, long offset, long delta)
int	getAndSetInt(Object o, long offset, int newValue)
long	getAndSetLong(Object o, long offset, long newValue)
Object	getAndSetObject(Object o, long offset, Object newValue)
native boolean	getBoolean(Object obj, long offset)
native byte	getByte(long address)
native byte	getByte(Object obj, long offset)
native char	getChar(long address)
native char	getChar(Object obj, long offset)
native double	getDouble(long address)
native double	getDouble(Object obj, long offset)
native float	getFloat(long address)
native float	getFloat(Object obj, long offset)
native int	getInt(long address)
native int	getInt(Object obj, long offset)
native int	getIntVolatile(Object obj, long offset)
native long	getLong(long address)
native long	getLong(Object obj, long offset)
native long	getLongVolatile(Object obj, long offset)
native Object	getObject(Object obj, long offset)
native Object	getObjectVolatile(Object obj, long offset)
native short	getShort(long address)
native short	getShort(Object obj, long offset)
static Unsafe	getUnsafe()
native void	loadFence()
long	objectFieldOffset(Field field)
native int	pageSize()
void	park(boolean absolute, long time)
native void	putBoolean(Object obj, long offset, boolean newValue)
native void	putByte(long address, byte x)
native void	putByte(Object obj, long offset, byte newValue)
native void	putChar(long address, char x)
native void	putChar(Object obj, long offset, char newValue)
native void	putDouble(long address, double x)
native void	putDouble(Object obj, long offset, double newValue)
native void	putFloat(long address, float x)
native void	putFloat(Object obj, long offset, float newValue)
native void	putInt(long address, int x)
native void	putInt(Object obj, long offset, int newValue)
native void	putIntVolatile(Object obj, long offset, int newValue)
native void	putLong(long address, long x)
native void	putLong(Object obj, long offset, long newValue)
native void	putLongVolatile(Object obj, long offset, long newValue)
native void	putObject(Object obj, long offset, Object newValue)
native void	putObjectVolatile(Object obj, long offset, Object newValue)
native void	putOrderedInt(Object obj, long offset, int newValue)
native void	putOrderedLong(Object obj, long offset, long newValue)
native void	putOrderedObject(Object obj, long offset, Object newValue)
native void	putShort(long address, short x)
native void	putShort(Object obj, long offset, short newValue)
native void	setMemory(long address, long bytes, byte value)
native void	storeFence()
void	unpark(Object obj)

Constants

INVALID_FIELD_OFFSET

Added in 1.0.0-alpha01

public static final int INVALID_FIELD_OFFSET = -1

Public methods

addressSize

Added in 1.0.0-alpha01

native public int addressSize()

allocateInstance

Added in 1.0.0-alpha01

native public Object allocateInstance(Class<Object> c)

allocateMemory

Added in 1.0.0-alpha01

native public long allocateMemory(long bytes)

arrayBaseOffset

Added in 1.0.0-alpha01

public int arrayBaseOffset(Class<Object> clazz)

arrayIndexScale

Added in 1.0.0-alpha01

public int arrayIndexScale(Class<Object> clazz)

compareAndSwapInt

Added in 1.0.0-alpha01

native public boolean compareAndSwapInt(
    Object obj,
    long offset,
    int expectedValue,
    int newValue
)

compareAndSwapLong

Added in 1.0.0-alpha01

native public boolean compareAndSwapLong(
    Object obj,
    long offset,
    long expectedValue,
    long newValue
)

compareAndSwapObject

Added in 1.0.0-alpha01

native public boolean compareAndSwapObject(
    Object obj,
    long offset,
    Object expectedValue,
    Object newValue
)

copyMemory

Added in 1.0.0-alpha01

native public void copyMemory(long srcAddr, long dstAddr, long bytes)

copyMemoryFromPrimitiveArray

Added in 1.0.0-alpha01

native public void copyMemoryFromPrimitiveArray(
    Object src,
    long srcOffset,
    long dstAddr,
    long bytes
)

copyMemoryToPrimitiveArray

Added in 1.0.0-alpha01

native public void copyMemoryToPrimitiveArray(
    long srcAddr,
    Object dst,
    long dstOffset,
    long bytes
)

freeMemory

Added in 1.0.0-alpha01

native public void freeMemory(long address)

fullFence

Added in 1.0.0-alpha01

native public void fullFence()

getAndAddInt

Added in 1.0.0-alpha01

public int getAndAddInt(Object o, long offset, int delta)

getAndAddLong

Added in 1.0.0-alpha01

public long getAndAddLong(Object o, long offset, long delta)

getAndSetInt

Added in 1.0.0-alpha01

public int getAndSetInt(Object o, long offset, int newValue)

getAndSetLong

Added in 1.0.0-alpha01

public long getAndSetLong(Object o, long offset, long newValue)

getAndSetObject

Added in 1.0.0-alpha01

public Object getAndSetObject(Object o, long offset, Object newValue)

getBoolean

Added in 1.0.0-alpha01

native public boolean getBoolean(Object obj, long offset)

getByte

Added in 1.0.0-alpha01

native public byte getByte(long address)

getByte

Added in 1.0.0-alpha01

native public byte getByte(Object obj, long offset)

getChar

Added in 1.0.0-alpha01

native public char getChar(long address)

getChar

Added in 1.0.0-alpha01

native public char getChar(Object obj, long offset)

getDouble

Added in 1.0.0-alpha01

native public double getDouble(long address)

getDouble

Added in 1.0.0-alpha01

native public double getDouble(Object obj, long offset)

getFloat

Added in 1.0.0-alpha01

native public float getFloat(long address)

getFloat

Added in 1.0.0-alpha01

native public float getFloat(Object obj, long offset)

getInt

Added in 1.0.0-alpha01

native public int getInt(long address)

getInt

Added in 1.0.0-alpha01

native public int getInt(Object obj, long offset)

getIntVolatile

Added in 1.0.0-alpha01

native public int getIntVolatile(Object obj, long offset)

getLong

Added in 1.0.0-alpha01

native public long getLong(long address)

getLong

Added in 1.0.0-alpha01

native public long getLong(Object obj, long offset)

getLongVolatile

Added in 1.0.0-alpha01

native public long getLongVolatile(Object obj, long offset)

getObject

Added in 1.0.0-alpha01

native public Object getObject(Object obj, long offset)

getObjectVolatile

Added in 1.0.0-alpha01

native public Object getObjectVolatile(Object obj, long offset)

getShort

Added in 1.0.0-alpha01

native public short getShort(long address)

getShort

Added in 1.0.0-alpha01

native public short getShort(Object obj, long offset)

getUnsafe

Added in 1.0.0-alpha01

public static Unsafe getUnsafe()

loadFence

Added in 1.0.0-alpha01

native public void loadFence()

objectFieldOffset

Added in 1.0.0-alpha01

public long objectFieldOffset(Field field)

pageSize

Added in 1.0.0-alpha01

native public int pageSize()

park

Added in 1.0.0-alpha01

public void park(boolean absolute, long time)

putBoolean

Added in 1.0.0-alpha01

native public void putBoolean(Object obj, long offset, boolean newValue)

putByte

Added in 1.0.0-alpha01

native public void putByte(long address, byte x)

putByte

Added in 1.0.0-alpha01

native public void putByte(Object obj, long offset, byte newValue)

putChar

Added in 1.0.0-alpha01

native public void putChar(long address, char x)

putChar

Added in 1.0.0-alpha01

native public void putChar(Object obj, long offset, char newValue)

putDouble

Added in 1.0.0-alpha01

native public void putDouble(long address, double x)

putDouble

Added in 1.0.0-alpha01

native public void putDouble(Object obj, long offset, double newValue)

putFloat

Added in 1.0.0-alpha01

native public void putFloat(long address, float x)

putFloat

Added in 1.0.0-alpha01

native public void putFloat(Object obj, long offset, float newValue)

putInt

Added in 1.0.0-alpha01

native public void putInt(long address, int x)

putInt

Added in 1.0.0-alpha01

native public void putInt(Object obj, long offset, int newValue)

putIntVolatile

Added in 1.0.0-alpha01

native public void putIntVolatile(Object obj, long offset, int newValue)

putLong

Added in 1.0.0-alpha01

native public void putLong(long address, long x)

putLong

Added in 1.0.0-alpha01

native public void putLong(Object obj, long offset, long newValue)

putLongVolatile

Added in 1.0.0-alpha01

native public void putLongVolatile(Object obj, long offset, long newValue)

putObject

Added in 1.0.0-alpha01

native public void putObject(Object obj, long offset, Object newValue)

putObjectVolatile

Added in 1.0.0-alpha01

native public void putObjectVolatile(Object obj, long offset, Object newValue)

putOrderedInt

Added in 1.0.0-alpha01

native public void putOrderedInt(Object obj, long offset, int newValue)

putOrderedLong

Added in 1.0.0-alpha01

native public void putOrderedLong(Object obj, long offset, long newValue)

putOrderedObject

Added in 1.0.0-alpha01

native public void putOrderedObject(Object obj, long offset, Object newValue)

putShort

Added in 1.0.0-alpha01

native public void putShort(long address, short x)

putShort

Added in 1.0.0-alpha01

native public void putShort(Object obj, long offset, short newValue)

setMemory

Added in 1.0.0-alpha01

native public void setMemory(long address, long bytes, byte value)

storeFence

Added in 1.0.0-alpha01

native public void storeFence()

unpark

Added in 1.0.0-alpha01

public void unpark(Object obj)