CArena Class Reference

#include <Arena.H>

Inheritance diagram for CArena:

[legend]Collaboration diagram for CArena:

[legend]List of all members.

---

Detailed Description

A Concrete Class for Dynamic Memory Management.

This is a coalescing memory manager. It allocates (possibly) large chunks of heap space and apportions it out as requested. It merges together neighboring chunks on each free().

Public Types
enum	{ DefaultHunkSize = 1024*1024 }
	The default memory hunk size to grab from the heap. More...
Public Member Functions
	CArena (size_t a_hunk_size=0)
virtual	~CArena ()
	The destructor.
virtual void *	alloc (size_t a_nbytes)
	Allocate some memory.
virtual void	free (void *a_vp)
void *	calloc (size_t a_nmemb, size_t a_size)
void *	realloc (void *a_ptr, size_t a_size)
Private Member Functions
	CArena (const CArena &a_rhs)
CArena &	operator= (const CArena &a_rhs)

---

Member Enumeration Documentation

anonymous enum

The default memory hunk size to grab from the heap. Enumeration values: DefaultHunkSize

---

Constructor & Destructor Documentation

CArena::CArena (  size_t  a_hunk_size = 0  )

: Construct a coalescing memory manager. `a_hunk_size' is the minimum size of hunks of memory to allocate from the heap. If a_hunk_size == 0 we use DefaultHunkSize as specified below.

virtual CArena::~CArena (   )  [virtual]

The destructor.

CArena::CArena (  const CArena &  a_rhs  )  [private]

---

Member Function Documentation

virtual void* CArena::alloc (  size_t  a_nbytes  )  [virtual]

Allocate some memory. Implements Arena.

virtual void CArena::free (  void *  a_vp  )  [virtual]

Free up allocated memory. Merge neighboring free memory chunks into largest possible chunk. Implements Arena.

void* CArena::calloc (  size_t  a_nmemb, size_t  a_size )

Mirror the C calloc() function. Returns zero'd memory of size a_nmemb*a_size. This is here so that we can implement malloc(3) and family. User's shouldn't use this function.

void* CArena::realloc (  void *  a_ptr, size_t  a_size )

Mirror the C realloc() function. This is here so that we can implement malloc(3) and family. User's shouldn't use this function.

CArena& CArena::operator= (  const CArena &  a_rhs  )  [private]

---

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

• Arena.H

---