ROOT::Experimental::Detail::RPageDeleter Class Reference

A closure that can free the memory associated with a mapped page.

The page pool, once taken ownership of pages, must know how to free them. When registering a new page with the page pool, the passed page deleter encapsulates that knowledge.

Definition at line 39 of file RPageAllocator.hxx.

Public Member Functions
	RPageDeleter ()
	RPageDeleter (const RPageDeleter &other)=default
	RPageDeleter (decltype(fFnDelete) fnDelete)
	RPageDeleter (decltype(fFnDelete) fnDelete, void *userData)
	~RPageDeleter ()=default
void	operator() (const RPage &page)
RPageDeleter &	operator= (const RPageDeleter &other)=default

Private Attributes
std::function< void(const RPage &page, void *userData)>	fFnDelete
	The callable that is suppped to free the given page; it is called with fUserData as the second argument.
void *	fUserData
	Optionally additional information necessary to free resources associated with a page.

#include <ROOT/RPageAllocator.hxx>

Constructor & Destructor Documentation

RPageDeleter() [1/4]

ROOT::Experimental::Detail::RPageDeleter::RPageDeleter ( )

inline

Definition at line 49 of file RPageAllocator.hxx.

RPageDeleter() [2/4]

ROOT::Experimental::Detail::RPageDeleter::RPageDeleter ( decltype(fFnDelete)  fnDelete )

inlineexplicit

Definition at line 50 of file RPageAllocator.hxx.

RPageDeleter() [3/4]

ROOT::Experimental::Detail::RPageDeleter::RPageDeleter ( decltype(fFnDelete)  fnDelete, void *  userData  )

inline

Definition at line 51 of file RPageAllocator.hxx.

RPageDeleter() [4/4]

ROOT::Experimental::Detail::RPageDeleter::RPageDeleter ( const RPageDeleter &  other )

default

~RPageDeleter()

ROOT::Experimental::Detail::RPageDeleter::~RPageDeleter ( )

default

Member Function Documentation

operator()()

void ROOT::Experimental::Detail::RPageDeleter::operator() ( const RPage &  page )

inline

Definition at line 56 of file RPageAllocator.hxx.

operator=()

RPageDeleter & ROOT::Experimental::Detail::RPageDeleter::operator= ( const RPageDeleter &  other )

default

Member Data Documentation

fFnDelete

std::function<void(const RPage &page, void *userData)> ROOT::Experimental::Detail::RPageDeleter::fFnDelete

private

The callable that is suppped to free the given page; it is called with fUserData as the second argument.

Definition at line 42 of file RPageAllocator.hxx.

fUserData

void* ROOT::Experimental::Detail::RPageDeleter::fUserData

private

Optionally additional information necessary to free resources associated with a page.

For instance, when the page is read from a TKey, user data points to the ROOT object created for reading, which needs to be freed as well.

Definition at line 46 of file RPageAllocator.hxx.

Libraries for ROOT::Experimental::Detail::RPageDeleter:

---

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

• tree/ntuple/v7/inc/ROOT/RPageAllocator.hxx