A single block as returned from SimpleAllocator::alloc(). More...

#include "simpleAllocator.h"

Inheritance diagram for SimpleAllocatorBlock:

Public Member Functions
	~SimpleAllocatorBlock ()
	The block automatically frees itself when it destructs.
void	free ()
	Releases the allocated space.
SimpleAllocator *	get_allocator () const
	Returns the SimpleAllocator object that owns this block.
size_t	get_max_size () const
	Returns the maximum size this block can be reallocated to, as limited by the following block.
SimpleAllocatorBlock *	get_next_block () const
	Returns a pointer to the next allocated block in the chain, or NULL if there are no more allocated blocks.
size_t	get_size () const
	Returns the size of this block.
size_t	get_start () const
	Returns the starting point of this block.
bool	is_free () const
	Returns true if the block has been freed, false if it is still valid.
void	output (ostream &out) const
bool	realloc (size_t size)
	Changes the size of this block to the specified size.
Protected Member Functions
	SimpleAllocatorBlock (SimpleAllocator *alloc, size_t start, size_t size)
	A SimpleAllocatorBlock must be constructed via the SimpleAllocator::alloc() call.
void	do_free ()
	Releases the allocated space.
size_t	do_get_max_size () const
	Returns the maximum size this block can be reallocated to, as limited by the following block.
bool	do_realloc (size_t size)
	Changes the size of this block to the specified size.
Friends
class	SimpleAllocator

Detailed Description

A single block as returned from SimpleAllocator::alloc().

Definition at line 95 of file simpleAllocator.h.

Constructor & Destructor Documentation

SimpleAllocatorBlock::SimpleAllocatorBlock	(	SimpleAllocator *	alloc,
		size_t	start,
		size_t	size
	)		`[inline, protected]`

A SimpleAllocatorBlock must be constructed via the SimpleAllocator::alloc() call.

Definition at line 170 of file simpleAllocator.I.

SimpleAllocatorBlock::~SimpleAllocatorBlock ( ) [inline]

The block automatically frees itself when it destructs.

Definition at line 185 of file simpleAllocator.I.

References free().

Member Function Documentation

void SimpleAllocatorBlock::do_free ( ) [inline, protected]

Releases the allocated space.

Assumes the lock is already held.

Definition at line 296 of file simpleAllocator.I.

References SimpleAllocator::mark_contiguous(), and LinkedListNode::remove_from_list().

Referenced by free().

size_t SimpleAllocatorBlock::do_get_max_size ( ) const [inline, protected]

Returns the maximum size this block can be reallocated to, as limited by the following block.

Assumes the lock is already held.

Definition at line 315 of file simpleAllocator.I.

Referenced by do_realloc(), and get_max_size().

bool SimpleAllocatorBlock::do_realloc ( size_t size ) [inline, protected]

Changes the size of this block to the specified size.

Returns true if the change is accepted, false if there was not enough room.

Assumes the lock is already held.

Definition at line 335 of file simpleAllocator.I.

References do_get_max_size(), and SimpleAllocator::mark_contiguous().

Referenced by realloc().

void SimpleAllocatorBlock::free ( ) [inline]

Releases the allocated space.

Definition at line 195 of file simpleAllocator.I.

References do_free().

Referenced by ~SimpleAllocatorBlock().

SimpleAllocator * SimpleAllocatorBlock::get_allocator ( ) const [inline]

Returns the SimpleAllocator object that owns this block.

Returns NULL if the block has been freed.

Definition at line 209 of file simpleAllocator.I.

Referenced by SimpleAllocator::do_alloc(), and VertexDataBlock::get_page().

size_t SimpleAllocatorBlock::get_max_size ( ) const [inline]

Returns the maximum size this block can be reallocated to, as limited by the following block.

Definition at line 255 of file simpleAllocator.I.

References do_get_max_size().

SimpleAllocatorBlock * SimpleAllocatorBlock::get_next_block ( ) const [inline]

Returns a pointer to the next allocated block in the chain, or NULL if there are no more allocated blocks.

Reimplemented in VertexDataBlock.

Definition at line 282 of file simpleAllocator.I.

size_t SimpleAllocatorBlock::get_size ( ) const [inline]

Returns the size of this block.

It is an error to call this if the block has been freed.

Definition at line 232 of file simpleAllocator.I.

Referenced by VertexDataSaveFile::read_data().

size_t SimpleAllocatorBlock::get_start ( ) const [inline]

Returns the starting point of this block.

It is an error to call this if the block has been freed.

Definition at line 220 of file simpleAllocator.I.

Referenced by VertexDataBlock::get_pointer(), and VertexDataSaveFile::read_data().

bool SimpleAllocatorBlock::is_free ( ) const [inline]

Returns true if the block has been freed, false if it is still valid.

Definition at line 244 of file simpleAllocator.I.

bool SimpleAllocatorBlock::realloc ( size_t size ) [inline]

Changes the size of this block to the specified size.

Returns true if the change is accepted, false if there was not enough room.

Definition at line 269 of file simpleAllocator.I.

References do_realloc().

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

panda/src/gobj/simpleAllocator.h
panda/src/gobj/simpleAllocator.cxx
panda/src/gobj/simpleAllocator.I

SimpleAllocatorBlock Class Reference

Public Member Functions

Protected Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation