IdentifiableValueContainer< T > Class Template Reference

#include <IdentifiableValueContainer.h>

Inheritance diagram for IdentifiableValueContainer< T >:

Collaboration diagram for IdentifiableValueContainer< T >:

Public Types
typedef T	value_type
typedef IdentifiableValueCache< T >	Cache

Public Member Functions
	IdentifiableValueContainer (const IdentifiableValueContainer< T > &)=delete
IdentifiableValueContainer &	operator= (const IdentifiableValueContainer &)=delete
	~IdentifiableValueContainer ()
	IdentifiableValueContainer (size_t maxSize, T defaultValue)
	Self Owning Constructor Pass the maximum hash to size the cache and the defaultValue which will be interpreted as an empty value. More...
	IdentifiableValueContainer (IdentifiableValueCache< T > *ptr)
	External Cache Constructor Pass the external cache to set up a view specific view interface. More...
const T &	emptyValue () const
	Return the empty value that is interpreted as an empty entry. More...
bool	present (size_t i) const
	Is the value for this has set and also accepted in the mask. More...
bool	setOrDrop (size_t i, const T &value)
	Set the value for the given hash. More...
size_t	maxSize () const
	Return the maxSize of the collection. More...
size_t	numberSet () const
	Return the number of entries set and accessible according to the mask. More...
bool	tryAddFromCache (size_t i)
	Returns true if the value is also in the external cache, sets mask to true if it is. More...
T	retrieve (size_t i) const
	Retrieve the value of the hash, if accessible according to the mask. More...
std::vector< std::pair< size_t, T > >	getAll () const
	Make a vector of hashes and values, convenient for iteration and other uses. More...
const std::vector< std::atomic< T > > &	wholeEventReadAccess () const
	Get read only access to the whole external cache. This could be useful for special situations. More...
const Cache *	cache () const
	Obtain const access to the cache. More...
const std::set< size_t > &	getMask () const

Private Attributes
std::set< size_t >	m_mask
Cache *	m_cache
bool	m_own

Detailed Description

template<class T>
class IdentifiableValueContainer< T >

Definition at line 21 of file IdentifiableValueContainer.h.

Member Typedef Documentation

Cache

template<class T >

typedef IdentifiableValueCache<T> IdentifiableValueContainer< T >::Cache

Definition at line 25 of file IdentifiableValueContainer.h.

value_type

template<class T >

typedef T IdentifiableValueContainer< T >::value_type

Definition at line 24 of file IdentifiableValueContainer.h.

Constructor & Destructor Documentation

IdentifiableValueContainer() [1/3]

template<class T >

IdentifiableValueContainer< T >::IdentifiableValueContainer ( const IdentifiableValueContainer< T > &  )

delete

~IdentifiableValueContainer()

template<class T >

IdentifiableValueContainer< T >::~IdentifiableValueContainer ( )

inline

Definition at line 31 of file IdentifiableValueContainer.h.

{ if(m_own) delete m_cache; }

IdentifiableValueContainer() [2/3]

template<class T >

IdentifiableValueContainer< T >::IdentifiableValueContainer ( size_t  maxSize, T  defaultValue  )

inline

Self Owning Constructor Pass the maximum hash to size the cache and the defaultValue which will be interpreted as an empty value.

Definition at line 35 of file IdentifiableValueContainer.h.

                                                              : m_own(true)
   {
       m_cache = new IdentifiableValueCache<T>(maxSize, std::move(defaultValue));
   }

IdentifiableValueContainer() [3/3]

template<class T >

IdentifiableValueContainer< T >::IdentifiableValueContainer ( IdentifiableValueCache< T > *  ptr )

inline

External Cache Constructor Pass the external cache to set up a view specific view interface.

Definition at line 42 of file IdentifiableValueContainer.h.

                                                              : 
   m_cache(ptr), m_own(false)
   {}

Member Function Documentation

cache()

template<class T >

const Cache* IdentifiableValueContainer< T >::cache ( ) const

inline

Obtain const access to the cache.

Definition at line 77 of file IdentifiableValueContainer.h.

{ return m_cache; }

emptyValue()

template<class T >

const T& IdentifiableValueContainer< T >::emptyValue ( ) const

inline

Return the empty value that is interpreted as an empty entry.

Definition at line 48 of file IdentifiableValueContainer.h.

{ return m_cache->emptyValue(); }

getAll()

template<class T >

std::vector< std::pair< size_t, T > > IdentifiableValueContainer< T >::getAll

Make a vector of hashes and values, convenient for iteration and other uses.

Definition at line 93 of file IdentifiableValueContainer.h.

                                                                         {
   std::vector<std::pair<size_t, T>> list;
   list.reserve(m_mask.size());
   const auto& raw = m_cache->rawReadAccess();
   for(size_t i : m_mask){
       list.emplace_back(i, raw[i].load(std::memory_order_relaxed));
   }
   return list;
}

getMask()

template<class T >

const std::set<size_t>& IdentifiableValueContainer< T >::getMask ( ) const

inline

Definition at line 79 of file IdentifiableValueContainer.h.

{ return m_mask; }

maxSize()

template<class T >

size_t IdentifiableValueContainer< T >::maxSize ( ) const

inline

Return the maxSize of the collection.

Definition at line 58 of file IdentifiableValueContainer.h.

{ return m_cache->maxSize(); }

numberSet()

template<class T >

size_t IdentifiableValueContainer< T >::numberSet

Return the number of entries set and accessible according to the mask.

This is not a trivial function do not repeatedly call.

Definition at line 124 of file IdentifiableValueContainer.h.

                                                     {
     return m_mask.size();
}

operator=()

template<class T >

IdentifiableValueContainer& IdentifiableValueContainer< T >::operator= ( const IdentifiableValueContainer< T > &  )

delete

present()

template<class T >

bool IdentifiableValueContainer< T >::present

(

size_t

i

)

const

Is the value for this has set and also accepted in the mask.

Definition at line 87 of file IdentifiableValueContainer.h.

{
   return m_mask.count(i);
}

retrieve()

template<class T >

T IdentifiableValueContainer< T >::retrieve

(

size_t

i

)

const

Retrieve the value of the hash, if accessible according to the mask.

Definition at line 104 of file IdentifiableValueContainer.h.

                                                       {
     Cache* cache ATLAS_THREAD_SAFE = m_cache;
     auto r = cache->retrieve(i);
     //Should be quicker to establish empty cache than empty mask with a std::set
     //So the cache is checked first
     if(r!= cache->emptyValue() && present(i)) return r;
     else return cache->emptyValue();
}

setOrDrop()

template<class T >

bool IdentifiableValueContainer< T >::setOrDrop	(	size_t	i,
		const T &	value
	)

Set the value for the given hash.

Definition at line 129 of file IdentifiableValueContainer.h.

                                                                     {
   bool b = m_cache->setOrDrop(i, value);
   m_mask.emplace(i);
   return b;
}

tryAddFromCache()

template<class T >

bool IdentifiableValueContainer< T >::tryAddFromCache

(

size_t

i

)

Returns true if the value is also in the external cache, sets mask to true if it is.

Definition at line 114 of file IdentifiableValueContainer.h.

                                                           {
   if(i >= maxSize()) return false;
   bool b = m_cache->present(i);
   if(b) m_mask.emplace(i);
   return b;
}

wholeEventReadAccess()

template<class T >

const std::vector<std::atomic<T> >& IdentifiableValueContainer< T >::wholeEventReadAccess ( ) const

inline

Get read only access to the whole external cache. This could be useful for special situations.

Definition at line 74 of file IdentifiableValueContainer.h.

{ return m_cache->rawReadAccess(); }

Member Data Documentation

m_cache

template<class T >

Cache* IdentifiableValueContainer< T >::m_cache

private

Definition at line 82 of file IdentifiableValueContainer.h.

m_mask

template<class T >

std::set<size_t> IdentifiableValueContainer< T >::m_mask

private

Definition at line 81 of file IdentifiableValueContainer.h.

m_own

template<class T >

bool IdentifiableValueContainer< T >::m_own

private

Definition at line 83 of file IdentifiableValueContainer.h.

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

• IdentifiableValueContainer.h