edm::atomic_value_ptr< T > Class Template Reference

#include <atomic_value_ptr.h>

Public Member Functions
	atomic_value_ptr ()
	atomic_value_ptr (T *p)
	atomic_value_ptr (atomic_value_ptr const &orig)
	atomic_value_ptr (atomic_value_ptr &&orig)
template<typename U >
	atomic_value_ptr (atomic_value_ptr< U > const &orig)
	atomic_value_ptr (std::unique_ptr< T > orig)
bool	compare_exchange_strong (T *&oldValue, T *newValue)
T *	load () const
	operator bool_type () const
T &	operator* () const
T *	operator-> () const
atomic_value_ptr &	operator= (atomic_value_ptr const &orig)
atomic_value_ptr &	operator= (atomic_value_ptr &&orig)
template<typename U >
atomic_value_ptr &	operator= (atomic_value_ptr< U > const &orig)
atomic_value_ptr &	operator= (std::unique_ptr< T > orig)
	~atomic_value_ptr ()

Private Types
typedef void(atomic_value_ptr::*	bool_type) () const

Private Member Functions
void	exchangeWithLocal (atomic_value_ptr &local)
void	this_type_does_not_support_comparisons () const

Static Private Member Functions
template<typename U >
static T *	createFrom (U const *p)

Private Attributes
std::atomic< T * >	myP

Detailed Description

template<typename T>
class edm::atomic_value_ptr< T >

Definition at line 47 of file atomic_value_ptr.h.

Member Typedef Documentation

template<typename T>

typedef void(atomic_value_ptr::* edm::atomic_value_ptr< T >::bool_type) () const

private

Definition at line 135 of file atomic_value_ptr.h.

Constructor & Destructor Documentation

template<typename T>

edm::atomic_value_ptr< T >::atomic_value_ptr ( )

inline

Definition at line 55 of file atomic_value_ptr.h.

: myP(nullptr) { }

template<typename T>

edm::atomic_value_ptr< T >::atomic_value_ptr ( T *  p )

inlineexplicit

Definition at line 56 of file atomic_value_ptr.h.

: myP(p) { }

template<typename T>

edm::atomic_value_ptr< T >::~atomic_value_ptr ( )

inline

Definition at line 57 of file atomic_value_ptr.h.

{ delete myP.load(); }

template<typename T>

edm::atomic_value_ptr< T >::atomic_value_ptr ( atomic_value_ptr< T > const &  orig )

inline

Definition at line 63 of file atomic_value_ptr.h.

                                                   :
      myP(createFrom(orig.myP.load())) {
    }

template<typename T>

edm::atomic_value_ptr< T >::atomic_value_ptr ( atomic_value_ptr< T > &&  orig )

inline

Definition at line 73 of file atomic_value_ptr.h.

                                              :
      myP(orig.myP) { orig.myP.store(nullptr); }

template<typename T>

template<typename U >

edm::atomic_value_ptr< T >::atomic_value_ptr ( atomic_value_ptr< U > const &  orig )

inline

Definition at line 94 of file atomic_value_ptr.h.

                                                      :
      myP(createFrom(orig.operator->())) {
    }

template<typename T>

edm::atomic_value_ptr< T >::atomic_value_ptr ( std::unique_ptr< T >  orig )

inline

Definition at line 109 of file atomic_value_ptr.h.

                                            :
      myP(orig.release()) {
      orig = nullptr;
    }

Member Function Documentation

template<typename T>

bool edm::atomic_value_ptr< T >::compare_exchange_strong ( T *&  oldValue, T *  newValue  )

inline

Definition at line 124 of file atomic_value_ptr.h.

                                                          {
   return myP.compare_exchange_strong(oldValue, newValue); 
  }

template<typename T>

template<typename U >

static T* edm::atomic_value_ptr< T >::createFrom ( U const *  p )

inlinestaticprivate

Definition at line 163 of file atomic_value_ptr.h.

                           {
      return p
    ? atomic_value_ptr_traits<U>::clone(p)
    : nullptr;
    }

template<typename T>

void edm::atomic_value_ptr< T >::exchangeWithLocal ( atomic_value_ptr< T > &  local )

inlineprivate

Definition at line 152 of file atomic_value_ptr.h.

                                                    {
      T* old = myP.exchange(local.myP.load());
      local.myP = old;
    }

template<typename T>

T* edm::atomic_value_ptr< T >::load ( ) const

inline

Definition at line 120 of file atomic_value_ptr.h.

                  {
    return myP.load();
  }

template<typename T>

edm::atomic_value_ptr< T >::operator bool_type ( ) const

inline

Definition at line 139 of file atomic_value_ptr.h.

                               {
      return myP != nullptr ?
        &atomic_value_ptr<T>::this_type_does_not_support_comparisons : nullptr;
    }

template<typename T>

T& edm::atomic_value_ptr< T >::operator* ( void  ) const

inline

Definition at line 86 of file atomic_value_ptr.h.

{ return *myP; }

template<typename T>

T* edm::atomic_value_ptr< T >::operator-> ( ) const

inline

Definition at line 87 of file atomic_value_ptr.h.

{ return myP.load(); }

template<typename T>

atomic_value_ptr& edm::atomic_value_ptr< T >::operator= ( atomic_value_ptr< T > const &  orig )

inline

Definition at line 67 of file atomic_value_ptr.h.

                                                              {
      atomic_value_ptr<T> local(orig);
      exchangeWithLocal(local);
      return *this;
    }

template<typename T>

atomic_value_ptr& edm::atomic_value_ptr< T >::operator= ( atomic_value_ptr< T > &&  orig )

inline

Definition at line 76 of file atomic_value_ptr.h.

                                                         {
      atomic_value_ptr<T> local(orig);
      exchangeWithLocal(local);
      return *this;
    }

template<typename T>

template<typename U >

atomic_value_ptr& edm::atomic_value_ptr< T >::operator= ( atomic_value_ptr< U > const &  orig )

inline

Definition at line 99 of file atomic_value_ptr.h.

                                                                 {
      atomic_value_ptr<T> local(orig);
      exchangeWithLocal(local);
      return *this;
    }

template<typename T>

atomic_value_ptr& edm::atomic_value_ptr< T >::operator= ( std::unique_ptr< T >  orig )

inline

Definition at line 114 of file atomic_value_ptr.h.

                                                       {
      atomic_value_ptr<T> local(std::move(orig));
      exchangeWithLocal(local);
      return *this;
    }

template<typename T>

void edm::atomic_value_ptr< T >::this_type_does_not_support_comparisons ( ) const

inlineprivate

Definition at line 136 of file atomic_value_ptr.h.

Referenced by edm::operator!=(), and edm::operator==().

{}

Member Data Documentation

template<typename T>

std::atomic<T*> edm::atomic_value_ptr< T >::myP

mutableprivate

Definition at line 173 of file atomic_value_ptr.h.

Referenced by edm::atomic_value_ptr< edm::ParameterSet >::exchangeWithLocal().