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class TAtomicCount

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library: libThread
#include "TAtomicCount.h"

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ROOT » CORE » THREAD » TAtomicCount

class TAtomicCount

TAtomicCount

Class providing atomic operations on a long. Setting, getting,
incrementing and decrementing are atomic, thread safe, operations.

TAtomicCount a(n);

(n is convertible to long)

Effects: Constructs an TAtomicCount with an initial value of n.

long(a);

Returns: (long) the current value of a.

++a;

Effects: Atomically increments the value of a.
Returns: nothing.

--a;

Effects: Atomically decrements the value of a.
Returns: (long) zero if the new value of a is zero,
unspecified non-zero value otherwise
(usually the new value).

a.Set(n);

Effects: Set a to the value n.
Returns: nothing.

a.Get();

Returns: (long) the current value of a.

Function Members (Methods)

public:

	TAtomicCount(Long_t v)
	~TAtomicCount()
Long_t	Get() const
long	operator long() const
void	operator++()
Long_t	operator--()
void	Set(Long_t v)

private:

	TAtomicCount(const TAtomicCount&)
TAtomicCount&	operator=(const TAtomicCount&)

Data Members

private:

Long_t	fCnt	counter

Class Charts

Inheritance Inherited Members Includes Libraries

Class Charts

Function documentation

TAtomicCount(const TAtomicCount &)

TAtomicCount & operator=(const TAtomicCount& )

explicit TAtomicCount(Long_t v)

{ }

void operator++()

{ ++fCnt; }

Long_t operator--()

{ return --fCnt; }

operator long() const

{ return fCnt; }

void Set(Long_t v)

{ fCnt = v; }

Long_t Get() const

{ return fCnt; }