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Reference Guide
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)
 
RPageDeleteroperator= (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. More...
 
void * fUserData
 Optionally additional information necessary to free resources associated with a page. More...
 

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