flyweight::flyweight_refcounted< T, Args > Class Template Reference

#include <flyweight.hpp>

Inheritance diagram for flyweight::flyweight_refcounted< T, Args >:

Public Types
using	autorelease_value = autorelease_value< T, flyweight_refcounted, std::tuple< Args... > >

Public Member Functions
	flyweight_refcounted ()
template<typename Creator >
	flyweight_refcounted (Creator &&creator)
template<typename Creator , typename Deleter >
	flyweight_refcounted (Creator &&creator, Deleter &&deleter)
T &	get (const std::tuple< Args... > &arg_tuple)
template<bool uses_multiple_args = (sizeof...(Args) > 1)>
auto	get (Args &&... args) -> typename std::enable_if< uses_multiple_args, T & >::type
	Alternative to flyweight_refcounted::get with the arguments unpacked.
autorelease_value	get_autorelease (const std::tuple< Args... > &arg_tuple)
template<bool uses_multiple_args = (sizeof...(Args) > 1)>
auto	get_autorelease (Args &&... args) -> typename std::enable_if< uses_multiple_args, autorelease_value >::type
	Alternative to flyweight_refcounted::get_autorelease with the arguments unpacked.
size_t	reference_count (const std::tuple< Args... > &arg_tuple) const
template<bool uses_multiple_args = (sizeof...(Args) > 1)>
auto	reference_count (Args &&... args) const -> typename std::enable_if< uses_multiple_args, size_t >::type
	Alternative to flyweight_refcounted::reference_count with the arguments unpacked.
bool	release (const std::tuple< Args... > &arg_tuple)
template<bool uses_multiple_args = (sizeof...(Args) > 1)>
auto	release (Args &&... args) -> typename std::enable_if< uses_multiple_args, bool >::type
	Alternative to flyweight_refcounted::release with the arguments unpacked.

Detailed Description

template<typename T, typename... Args>
class flyweight::flyweight_refcounted< T, Args >

flyweight subclass that employs reference counting.

The reference count increments for each call to flyweight_refcounted::get and decrements for each call to flyweight_refcounted::release using the same arguments. When calling flyweight_refcounted::release, the value is actually deleted from the cache only when the reference count reaches zero.

This is specially useful for implementing resource management of heavy objects, like images used as icons in an interactive app.

See also

flyweight

Constructor & Destructor Documentation

flyweight_refcounted() [1/3]

template<typename T , typename... Args>

flyweight::flyweight_refcounted< T, Args >::flyweight_refcounted ( )

inline

See also

flyweight()

flyweight_refcounted() [2/3]

template<typename T , typename... Args>

template<typename Creator >

flyweight::flyweight_refcounted< T, Args >::flyweight_refcounted ( Creator &&  creator )

inline

See also

flyweight(Creator&&)

flyweight_refcounted() [3/3]

template<typename T , typename... Args>

template<typename Creator , typename Deleter >

flyweight::flyweight_refcounted< T, Args >::flyweight_refcounted ( Creator &&  creator, Deleter &&  deleter  )

inline

See also

flyweight(Creator&&, Deleter&&)

Member Function Documentation

get() [1/2]

template<typename T , typename... Args>

T & flyweight::flyweight_refcounted< T, Args >::get ( const std::tuple< Args... > &  arg_tuple )

inline

Override for flyweight::get with reference counting.

See also

flyweight::get

get() [2/2]

template<typename T , typename... Args>

template<bool uses_multiple_args = (sizeof...(Args) > 1)>

auto flyweight::flyweight_refcounted< T, Args >::get ( Args &&...  args ) -> typename std::enable_if<uses_multiple_args, T&>::type

inline

Alternative to flyweight_refcounted::get with the arguments unpacked.

get_autorelease() [1/2]

template<typename T , typename... Args>

autorelease_value flyweight::flyweight_refcounted< T, Args >::get_autorelease ( const std::tuple< Args... > &  arg_tuple )

inline

Override for flyweight::get_autorelease with reference counting.

See also

flyweight::get_autorelease

get_autorelease() [2/2]

template<typename T , typename... Args>

template<bool uses_multiple_args = (sizeof...(Args) > 1)>

auto flyweight::flyweight_refcounted< T, Args >::get_autorelease ( Args &&...  args ) -> typename std::enable_if<uses_multiple_args, autorelease_value>::type

inline

Alternative to flyweight_refcounted::get_autorelease with the arguments unpacked.

reference_count() [1/2]

template<typename T , typename... Args>

size_t flyweight::flyweight_refcounted< T, Args >::reference_count ( const std::tuple< Args... > &  arg_tuple ) const

inline

Checks the current reference count for the value mapped to the passed arguments.

See also

reference_count_tuple

reference_count() [2/2]

template<typename T , typename... Args>

template<bool uses_multiple_args = (sizeof...(Args) > 1)>

auto flyweight::flyweight_refcounted< T, Args >::reference_count ( Args &&...  args ) const -> typename std::enable_if<uses_multiple_args, size_t>::type

inline

Alternative to flyweight_refcounted::reference_count with the arguments unpacked.

release() [1/2]

template<typename T , typename... Args>

bool flyweight::flyweight_refcounted< T, Args >::release ( const std::tuple< Args... > &  arg_tuple )

inline

Override for flyweight::release with reference counting. The value will actually be released only when the reference count reaches zero.

release() [2/2]

template<typename T , typename... Args>

template<bool uses_multiple_args = (sizeof...(Args) > 1)>

auto flyweight::flyweight_refcounted< T, Args >::release ( Args &&...  args ) -> typename std::enable_if<uses_multiple_args, bool>::type

inline

Alternative to flyweight_refcounted::release with the arguments unpacked.

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

• flyweight.hpp