RWAtomicCounter Class Reference

Maintains a reference count safely in a multithreaded environment. More...

#include <rw/pointer/RWAtomicCounter.h>

Public Member Functions
	RWAtomicCounter ()
	RWAtomicCounter (const RWAtomicCounter &)
	RWAtomicCounter (RWStaticCtor)
	RWAtomicCounter (unsigned n)
unsigned	addReference (void)
RWAtomicCounter &	operator= (const RWAtomicCounter &)
unsigned	references (void) const
unsigned	removeReference (void)

Detailed Description

RWAtomicCounter maintains a reference count and can safely be used in a multithreaded environment.

Example

#include <rw/pointer/RWAtomicCounter.h>
#include <rw/pointer/RWTCountingPointer.h>
 
int main() {
  RWTCountingPointer<int, RWAtomicCounter> pointer = new int(10);
 
  return 0;
}

Constructor & Destructor Documentation

RWAtomicCounter() [1/4]

RWAtomicCounter::RWAtomicCounter ( )

inline

Constructs an RWAtomicCounter with initial reference count set to 0. Throws no exceptions.

RWAtomicCounter() [2/4]

RWAtomicCounter::RWAtomicCounter ( unsigned n )

inlineexplicit

Constructs an RWAtomicCounter with initial reference count set to n. Throws no exceptions.

RWAtomicCounter() [3/4]

RWAtomicCounter::RWAtomicCounter ( RWStaticCtor )

inline

Constructs a static instance that does not initialize the reference count. Throws no exceptions.

RWAtomicCounter() [4/4]

RWAtomicCounter::RWAtomicCounter ( const RWAtomicCounter & )

inline

Default-initializes the internal count to zero.

Member Function Documentation

addReference()

unsigned RWAtomicCounter::addReference ( void )

inline

Increments the reference count and then returns the previous value minus one.

operator=()

RWAtomicCounter & RWAtomicCounter::operator= ( const RWAtomicCounter & )

inline

Copy assignment operator that does nothing, allowing derived classes to do assignments. Returns *this.

references()

unsigned RWAtomicCounter::references ( void ) const

inline

Queries the current reference count. Throws no exceptions.

removeReference()

unsigned RWAtomicCounter::removeReference ( void )

inline

Decrements the reference count and then returns the previous value minus one.