RWAtomicCounter Class Reference
[Smart Pointers]

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

#include <rw/pointer/RWAtomicCounter.h>

List of all members.

Public Member Functions
	RWAtomicCounter (unsigned n=0)
	RWAtomicCounter (RWStaticCtor)
	RWAtomicCounter (const RWAtomicCounter &)
unsigned	references (void) const
unsigned	addReference (void)
unsigned	removeReference (void)
RWAtomicCounter &	operator= (const RWAtomicCounter &)

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Detailed Description

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

Examples

 #include <rw/pointer/RWAtomicCounter.h>
 #include <rw/pointer/RWTCountingPointer.h>

 int main()
 {
   RWTCountingPointer<int, RWAtomicCounter> pointer = new int(10);

   return 0;
 }

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Constructor & Destructor Documentation

RWAtomicCounter::RWAtomicCounter

(

unsigned

n = 0

)

[inline]

Constructs a default instance that initializes the reference count. Throws no exceptions.

RWAtomicCounter::RWAtomicCounter

(

RWStaticCtor

)

[inline]

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

RWAtomicCounter::RWAtomicCounter

(

const RWAtomicCounter &

)

[inline]

Default-initializes the internal count to zero.

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Member Function Documentation

unsigned RWAtomicCounter::addReference

(

void

)

[inline]

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

RWAtomicCounter& RWAtomicCounter::operator=

(

const RWAtomicCounter &

)

[inline]

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

unsigned RWAtomicCounter::references

(

void

)

const [inline]

Queries the current reference count. Throws no exceptions.

unsigned RWAtomicCounter::removeReference

(

void

)

[inline]

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