decaf::util::concurrent::atomic::AtomicInteger Class Reference

An int value that may be updated atomically. More...

#include <src/main/decaf/util/concurrent/atomic/AtomicInteger.h>

Inheritance diagram for decaf::util::concurrent::atomic::AtomicInteger:

Public Member Functions
	AtomicInteger ()
	Create a new AtomicInteger with an initial value of 0.
	AtomicInteger (int initialValue)
	Create a new AtomicInteger with the given initial value.
virtual	~AtomicInteger ()
int	get () const
	Gets the current value.
void	set (int newValue)
	Sets to the given value.
int	getAndSet (int newValue)
	Atomically sets to the given value and returns the old value.
bool	compareAndSet (int expect, int update)
	Atomically sets the value to the given updated value if the current value == the expected value.
int	getAndIncrement ()
	Atomically increments by one the current value.
int	getAndDecrement ()
	Atomically decrements by one the current value.
int	getAndAdd (int delta)
	Atomically adds the given value to the current value.
int	incrementAndGet ()
	Atomically increments by one the current value.
int	decrementAndGet ()
	Atomically decrements by one the current value.
int	addAndGet (int delta)
	Atomically adds the given value to the current value.
std::string	toString () const
	Returns the String representation of the current value.
int	intValue () const
	Description copied from class: Number Returns the value of the specified number as an int.
long long	longValue () const
	Description copied from class: Number Returns the value of the specified number as a long.
float	floatValue () const
	Description copied from class: Number Returns the value of the specified number as a float.
double	doubleValue () const
	Description copied from class: Number Returns the value of the specified number as a double.
Public Member Functions inherited from decaf::lang::Number
virtual	~Number ()
virtual unsigned char	byteValue () const
	Answers the byte value which the receiver represents.
virtual short	shortValue () const
	Answers the short value which the receiver represents.

Detailed Description

An int value that may be updated atomically.

An AtomicInteger is used in applications such as atomically incremented counters, and cannot be used as a replacement for an Integer. However, this class does extend Number to allow uniform access by tools and utilities that deal with numerically-based classes.

Constructor & Destructor Documentation

decaf::util::concurrent::atomic::AtomicInteger::AtomicInteger

(

)

Create a new AtomicInteger with an initial value of 0.

decaf::util::concurrent::atomic::AtomicInteger::AtomicInteger

(

int

initialValue

)

Create a new AtomicInteger with the given initial value.

Parameters

initialValue

- The initial value of this object.

virtual decaf::util::concurrent::atomic::AtomicInteger::~AtomicInteger ( )

inlinevirtual

Member Function Documentation

int decaf::util::concurrent::atomic::AtomicInteger::addAndGet

(

int

delta

)

Atomically adds the given value to the current value.

Parameters

delta

- the value to add.

Returns

the updated value.

bool decaf::util::concurrent::atomic::AtomicInteger::compareAndSet	(	int	expect,
		int	update
	)

Atomically sets the value to the given updated value if the current value == the expected value.

Parameters

expect	- the expected value
update	- the new value

Returns

true if successful. False return indicates that the actual value was not equal to the expected value.

int decaf::util::concurrent::atomic::AtomicInteger::decrementAndGet

(

)

Atomically decrements by one the current value.

Returns

the updated value.

Referenced by decaf::util::concurrent::atomic::AtomicRefCounter::release().

double decaf::util::concurrent::atomic::AtomicInteger::doubleValue ( ) const

virtual

Description copied from class: Number Returns the value of the specified number as a double.

This may involve rounding.

Returns

the numeric value represented by this object after conversion to type double.

Implements decaf::lang::Number.

float decaf::util::concurrent::atomic::AtomicInteger::floatValue ( ) const

virtual

Description copied from class: Number Returns the value of the specified number as a float.

This may involve rounding.

Returns

the numeric value represented by this object after conversion to type float.

Implements decaf::lang::Number.

int decaf::util::concurrent::atomic::AtomicInteger::get ( ) const

inline

Gets the current value.

Returns

the current value.

Referenced by decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::drainTo(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::offer(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::peek(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::poll(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::put(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::remainingCapacity(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::size(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::take(), decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::toArray(), and decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::toString().

int decaf::util::concurrent::atomic::AtomicInteger::getAndAdd

(

int

delta

)

Atomically adds the given value to the current value.

Parameters

delta

- The value to add.

Returns

the previous value.

Referenced by decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::drainTo().

int decaf::util::concurrent::atomic::AtomicInteger::getAndDecrement

(

)

Atomically decrements by one the current value.

Returns

the previous value.

Referenced by decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::poll(), and decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::take().

int decaf::util::concurrent::atomic::AtomicInteger::getAndIncrement

(

)

Atomically increments by one the current value.

Returns

the previous value.

Referenced by decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::offer(), and decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::put().

int decaf::util::concurrent::atomic::AtomicInteger::getAndSet

(

int

newValue

)

Atomically sets to the given value and returns the old value.

Parameters

newValue

- the new value.

Returns

the previous value.

Referenced by decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::clear().

int decaf::util::concurrent::atomic::AtomicInteger::incrementAndGet

(

)

Atomically increments by one the current value.

Returns

the updated value.

Referenced by decaf::util::concurrent::atomic::AtomicRefCounter::AtomicRefCounter().

int decaf::util::concurrent::atomic::AtomicInteger::intValue ( ) const

virtual

Description copied from class: Number Returns the value of the specified number as an int.

This may involve rounding or truncation.

Returns

the numeric value represented by this object after conversion to type int.

Implements decaf::lang::Number.

long long decaf::util::concurrent::atomic::AtomicInteger::longValue ( ) const

virtual

Description copied from class: Number Returns the value of the specified number as a long.

This may involve rounding or truncation.

Returns

the numeric value represented by this object after conversion to type long long.

Implements decaf::lang::Number.

void decaf::util::concurrent::atomic::AtomicInteger::set ( int  newValue )

inline

Sets to the given value.

Parameters

newValue

- the new value

Referenced by decaf::util::concurrent::LinkedBlockingQueue< Pointer< Transport > >::clear().

std::string decaf::util::concurrent::atomic::AtomicInteger::toString

(

)

const

Returns the String representation of the current value.

Returns

the String representation of the current value.

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

• src/main/decaf/util/concurrent/atomic/AtomicInteger.h