__gnu_cxx::__pool_alloc_base Class Reference

Inheritance diagram for __gnu_cxx::__pool_alloc_base:

Protected Types
enum	{ _S_align }
enum	{ _S_max_bytes }
enum	{ _S_free_list_size }

Protected Member Functions
char *	_M_allocate_chunk (size_t __n, int &__nobjs)
_Obj *volatile *	_M_get_free_list (size_t __bytes) throw ()
__mutex &	_M_get_mutex () throw ()
void *	_M_refill (size_t __n)
size_t	_M_round_up (size_t __bytes)

Static Protected Attributes
static char *	_S_end_free
static _Obj *volatile	_S_free_list [_S_free_list_size]
static size_t	_S_heap_size
static char *	_S_start_free

Detailed Description

Base class for __pool_alloc.

Uses various allocators to fulfill underlying requests (and makes as few requests as possible when in default high-speed pool mode).

Important implementation properties: 0. If globally mandated, then allocate objects from new 1. If the clients request an object of size > _S_max_bytes, the resulting object will be obtained directly from new 2. In all other cases, we allocate an object of size exactly _S_round_up(requested_size). Thus the client has enough size information that we can return the object to the proper free list without permanently losing part of the object.

Definition at line 78 of file pool_allocator.h.

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

• pool_allocator.h