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ACE_Cached_Mem_Pool_Node Class Template Reference

ACE_Cached_Mem_Pool_Node keeps unused memory within a free list. More...

#include <Malloc_T.h>

Inheritance diagram for ACE_Cached_Mem_Pool_Node:

[legend]Collaboration diagram for ACE_Cached_Mem_Pool_Node:

[legend]List of all members.

Public Methods
T *	addr (void)
	Return the address of free memory. More...
ACE_Cached_Mem_Pool_Node< T > *	get_next (void)
	Get the next ACE_Cached_Mem_Pool_Node in a list. More...
void	set_next (ACE_Cached_Mem_Pool_Node< T > *ptr)
	Set the next ACE_Cached_Mem_Pool_Node. More...
Private Attributes
ACE_Cached_Mem_Pool_Node< T > *	next_

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Detailed Description

template<class T>
class ACE_Cached_Mem_Pool_Node< T >

ACE_Cached_Mem_Pool_Node keeps unused memory within a free list.

The length of a piece of unused memory must be greater than sizeof (void*). This makes sense because we'll waste even more memory if we keep them in a separate data structure. This class should really be placed within the ACE_Cached_Allocator class but this can't be done due to C++ compiler portability problems.

Definition at line 42 of file Malloc_T.h.

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Member Function Documentation

template<class T> ACE_INLINE T * ACE_Cached_Mem_Pool_Node< T >::addr (  void    )

Return the address of free memory. Definition at line 7 of file Malloc_T.i. { // This should be done using a single reinterpret_cast, but Sun/CC // (4.2) gets awfully confused when T is a char[20] (and maybe other // types). return ACE_static_cast (T *, ACE_static_cast (void *, this)); }

template<class T> ACE_INLINE ACE_Cached_Mem_Pool_Node< T > * ACE_Cached_Mem_Pool_Node< T >::get_next (  void    )

Get the next ACE_Cached_Mem_Pool_Node in a list. Definition at line 16 of file Malloc_T.i. References next_. { return this->next_; }

template<class T> ACE_INLINE void ACE_Cached_Mem_Pool_Node< T >::set_next (  ACE_Cached_Mem_Pool_Node< T > *    ptr )

Set the next ACE_Cached_Mem_Pool_Node. Definition at line 22 of file Malloc_T.i. References next_. { this->next_ = ptr; }

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Member Data Documentation

template<class T> ACE_Cached_Mem_Pool_Node<T>* ACE_Cached_Mem_Pool_Node::next_ [private]

Since memory is not used when placed in a free list, we can use it to maintain the structure of free list. I was using union to hide the fact of overlapping memory usage. However, that cause problem on MSVC. So, I now turn back to hack this with casting. Definition at line 62 of file Malloc_T.h. Referenced by get_next, and set_next.

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

• Malloc_T.h
• Malloc_T.i

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