BubbleAllocator Class Reference

Keeps growing allocated memory, and can't actually free memory (hence the name). More...

#include <BubbleAllocator.h>

Inheritance diagram for BubbleAllocator:

Public Member Functions
	BubbleAllocator (const Range range)
	Class constructor. More...
virtual Size	available () const
	Get memory available. More...
virtual Result	allocate (Range &args)
	Allocate memory. More...
virtual Result	release (const Address addr)
	Release memory. More...
Public Member Functions inherited from Allocator
	Allocator ()
	Default class constructor. More...
	Allocator (const Range range)
	Class constructor with Range input. More...
virtual	~Allocator ()
	Class destructor. More...
void	setParent (Allocator *parent)
	Set parent allocator. More...
Allocator *	parent ()
	Get parent Allocator. More...
Address	base () const
	Get memory base address for allocations. More...
Size	alignment () const
	Get memory alignment in bytes for allocations. More...
virtual Size	size () const
	Get memory size. More...

Private Attributes
Size	m_allocated
	Number of bytes allocated. More...

Additional Inherited Members
Public Types inherited from Allocator
enum	Result {   Success = 0, InvalidAddress, InvalidSize, InvalidAlignment,   OutOfMemory }
	Allocation results. More...
typedef struct Allocator::Range	Range
	Describes a range of memory. More...
Static Public Member Functions inherited from Allocator
static void	setDefault (Allocator *alloc)
	Makes the given Allocator the default. More...
static Allocator *	getDefault ()
	Retrieve the currently default Allocator. More...
Protected Member Functions inherited from Allocator
Address	aligned (const Address addr, const Size boundary) const
	Align memory address. More...

Detailed Description

Keeps growing allocated memory, and can't actually free memory (hence the name).

Definition at line 35 of file BubbleAllocator.h.

Constructor & Destructor Documentation

BubbleAllocator()

BubbleAllocator::BubbleAllocator

(

const Range

range

)

Class constructor.

Parameters

range

Block of continguous memory to be managed.

Definition at line 21 of file BubbleAllocator.cpp.

Member Function Documentation

allocate()

Allocator::Result BubbleAllocator::allocate ( Allocator::Range &  args )

virtual

Allocate memory.

Parameters

args	Contains the requested size and alignment on input. On output, contains the actual allocated address.

Returns

Result value.

Note

The alignment field in args is ignored. Only the alignment value passed to the constructor is used.

Reimplemented from Allocator.

Definition at line 32 of file BubbleAllocator.cpp.

References Allocator::Range::address, Allocator::aligned(), Allocator::alignment(), Allocator::base(), m_allocated, Allocator::OutOfMemory, Allocator::Range::size, Allocator::size(), and Allocator::Success.

available()

Size BubbleAllocator::available ( ) const

virtual

Get memory available.

Returns

Size of memory available by the Allocator.

Reimplemented from Allocator.

Definition at line 27 of file BubbleAllocator.cpp.

References m_allocated, and Allocator::size().

release()

Allocator::Result BubbleAllocator::release ( const Address  addr )

virtual

Release memory.

Does nothing for BubbleAllocator.

Parameters

addr	Points to memory previously returned by allocate().

See also

allocate

Reimplemented from Allocator.

Definition at line 47 of file BubbleAllocator.cpp.

References Allocator::InvalidAddress.

Field Documentation

m_allocated

Size BubbleAllocator::m_allocated

private

Number of bytes allocated.

Definition at line 80 of file BubbleAllocator.h.

Referenced by allocate(), and available().

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

• lib/liballoc/BubbleAllocator.h
• lib/liballoc/BubbleAllocator.cpp