LockPtr< T > Class Template Reference

#include <elm/util/LockPtr.h>

Inheritance diagram for LockPtr< T >:

Public Member Functions
	LockPtr (T *p=0)
	LockPtr (const LockPtr &l)
	~LockPtr (void)
LockPtr &	operator= (const LockPtr &lock)
LockPtr &	operator= (T *p)
T *	operator-> (void) const
T &	operator* (void) const
T *	operator& (void) const
bool	isNull (void) const
	operator bool (void) const
bool	operator== (const LockPtr< T > &ap) const
bool	operator!= (const LockPtr< T > &ap) const
bool	operator> (const LockPtr< T > &ap) const
bool	operator>= (const LockPtr< T > &ap) const
bool	operator< (const LockPtr< T > &ap) const
bool	operator<= (const LockPtr< T > &ap) const

Static Public Attributes
static LockPtr< T >	null

Detailed Description

template<class T>
class elm::LockPtr< T >

Implements a pointer wrapper class that takes care of the usage of a pointer and that automatically delete a pointed object when it is no more used.

Based on reference counting approach, assignment of shared pointer induces the decrementation of the previous pointer and the incrementation of the new pointer. Unlike the SharedPtr, the pointed object must implements the Lock class. This permits to save one extraneous pointer used, in SharedPtr, to link the pointed objects with its counter.

Beware: this also means that pointed objects forming a cycle will not be deleted!

Parameters

T	Type of pointed object.

Constructor & Destructor Documentation

LockPtr() [1/2]

LockPtr ( T *  p = 0 )

inline

LockPtr() [2/2]

LockPtr ( const LockPtr< T > &  l )

inline

~LockPtr()

~LockPtr ( void  )

inline

Member Function Documentation

isNull()

bool isNull ( void  ) const

inline

Referenced by LockPtr< elm::sys::FileItem >::operator bool(), LockPtr< elm::sys::FileItem >::operator&(), LockPtr< elm::sys::FileItem >::operator*(), and LockPtr< elm::sys::FileItem >::operator->().

operator bool()

operator bool ( void  ) const

inline

operator!=()

bool operator!= ( const LockPtr< T > &  ap ) const

inline

operator&()

T* operator& ( void  ) const

inline

operator*()

T& operator* ( void  ) const

inline

operator->()

T* operator-> ( void  ) const

inline

operator<()

bool operator< ( const LockPtr< T > &  ap ) const

inline

operator<=()

bool operator<= ( const LockPtr< T > &  ap ) const

inline

operator=() [1/2]

LockPtr& operator= ( const LockPtr< T > &  lock )

inline

operator=() [2/2]

LockPtr& operator= ( T *  p )

inline

operator==()

bool operator== ( const LockPtr< T > &  ap ) const

inline

operator>()

bool operator> ( const LockPtr< T > &  ap ) const

inline

operator>=()

bool operator>= ( const LockPtr< T > &  ap ) const

inline

Member Data Documentation

null

LockPtr<T> null

static

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

• include/elm/util/LockPtr.h