Slic3r::CachedObject< T > Class Template Reference

A wrapper class around arbitrary object that needs thread safe caching. More...

#include <src/libslic3r/MTUtils.hpp>

Collaboration diagram for Slic3r::CachedObject< T >:

Public Types
using	Setter = std::function< void(T &)>

Public Member Functions
template<class... Args>
	CachedObject (Setter &&fn, Args &&... args)
template<class Fn >
void	invalidate (Fn &&fn)
const T &	get ()

Private Attributes
T	m_obj
bool	m_valid
SpinMutex	m_lck
std::function< void(T &)>	m_setter

Detailed Description

template<class T>
class Slic3r::CachedObject< T >

A wrapper class around arbitrary object that needs thread safe caching.

Member Typedef Documentation

Setter

template<class T >

using Slic3r::CachedObject< T >::Setter = std::function<void(T &)>

Constructor & Destructor Documentation

CachedObject()

template<class T >

template<class... Args>

Slic3r::CachedObject< T >::CachedObject ( Setter &&  fn, Args &&...  args  )

inline

        : m_obj(std::forward<Args>(args)...), m_valid(false), m_setter(fn)
    {}

Member Function Documentation

get()

template<class T >

const T & Slic3r::CachedObject< T >::get ( )

inline

    {
        std::lock_guard<SpinMutex> lck(m_lck);
        if (!m_valid) {
            m_setter(m_obj);
            m_valid = true;
        }
        return m_obj;
    }

References Slic3r::CachedObject< T >::m_lck, Slic3r::CachedObject< T >::m_obj, Slic3r::CachedObject< T >::m_setter, and Slic3r::CachedObject< T >::m_valid.

invalidate()

template<class T >

template<class Fn >

void Slic3r::CachedObject< T >::invalidate ( Fn &&  fn )

inline

    {
        std::lock_guard<SpinMutex> lck(m_lck);
        fn();
        m_valid = false;
    }

References Slic3r::CachedObject< T >::m_lck, and Slic3r::CachedObject< T >::m_valid.

Member Data Documentation

m_lck

template<class T >

SpinMutex Slic3r::CachedObject< T >::m_lck

private

Referenced by Slic3r::CachedObject< T >::get(), and Slic3r::CachedObject< T >::invalidate().

m_obj

template<class T >

T Slic3r::CachedObject< T >::m_obj

private

Referenced by Slic3r::CachedObject< T >::get().

m_setter

template<class T >

std::function<void(T &)> Slic3r::CachedObject< T >::m_setter

private

Referenced by Slic3r::CachedObject< T >::get().

m_valid

template<class T >

bool Slic3r::CachedObject< T >::m_valid

private

Referenced by Slic3r::CachedObject< T >::get(), and Slic3r::CachedObject< T >::invalidate().

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

• src/libslic3r/MTUtils.hpp