This template class can be used to provide faster allocation/deallocation for many Panda objects. More...

#include "deletedBufferChain.h"

Public Member Functions
void *	allocate (size_t size, TypeHandle type_handle)
	Allocates the memory for a new buffer of the indicated size (which must be no greater than the fixed size associated with the DeletedBufferChain). More...

void	deallocate (void *ptr, TypeHandle type_handle)
	Frees the memory for a buffer previously allocated via allocate(). More...

size_t	get_buffer_size () const
	Returns the size of the buffer that is actually returned at each request. More...

bool	validate (void *ptr)
	Returns true if the pointer is valid, false if it has been deleted or if it was never a valid pointer. More...

Friends
class	MemoryHook

Detailed Description

This template class can be used to provide faster allocation/deallocation for many Panda objects.

It works by maintaining a linked list of deleted buffers that are all of the same size; when a new object is allocated that matches that size, the same space is just reused.

This class manages untyped buffers of a fixed size. It can be used directly; or it also serves as a backbone for DeletedChain, which is a template class that manages object allocations.

Use MemoryHook to get a new DeletedBufferChain of a particular size.

Definition at line 58 of file deletedBufferChain.h.

Member Function Documentation

◆ allocate()

void * DeletedBufferChain::allocate	(	size_t	size,
		TypeHandle	type_handle
	)

Allocates the memory for a new buffer of the indicated size (which must be no greater than the fixed size associated with the DeletedBufferChain).

Definition at line 35 of file deletedBufferChain.cxx.

◆ deallocate()

void DeletedBufferChain::deallocate	(	void *	ptr,
		TypeHandle	type_handle
	)

Frees the memory for a buffer previously allocated via allocate().

Definition at line 102 of file deletedBufferChain.cxx.

◆ get_buffer_size()

size_t DeletedBufferChain::get_buffer_size ( ) const

inline

Returns the size of the buffer that is actually returned at each request.

Definition at line 40 of file deletedBufferChain.I.

◆ validate()

bool DeletedBufferChain::validate ( void * ptr )

inline

Returns true if the pointer is valid, false if it has been deleted or if it was never a valid pointer.

This is only meaningful in debug mode, where USE_DELETEDCHAINFLAG is defined. If not, this trivially returns true.

Definition at line 22 of file deletedBufferChain.I.

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

dtool/src/dtoolbase/deletedBufferChain.h
dtool/src/dtoolbase/deletedBufferChain.cxx
dtool/src/dtoolbase/deletedBufferChain.I