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# allocator
[utilities]

## Classes
struct | axutil_allocator
| Axis2 memory allocator. More...
## Defines
#define | AXIS2_MALLOC(allocator, size) ((allocator)->malloc_fn(allocator, size))
#define | AXIS2_REALLOC(allocator, ptr, size) ((allocator)->realloc(allocator, ptr, size))
#define | AXIS2_FREE(allocator, ptr) ((allocator)->free_fn(allocator, ptr))
## Typedefs
typedef struct axutil_allocator | axutil_allocator_t
| Axis2 memory allocator.
## Functions
AXIS2_EXTERN axutil_allocator_t * | axutil_allocator_init (axutil_allocator_t *allocator)
AXIS2_EXTERN void | axutil_allocator_free (axutil_allocator_t *allocator)
AXIS2_EXTERN void | axutil_allocator_switch_to_global_pool (axutil_allocator_t *allocator)
AXIS2_EXTERN void | axutil_allocator_switch_to_local_pool (axutil_allocator_t *allocator)

## Typedef Documentation

typedef struct axutil_allocator axutil_allocator_t

Axis2 memory allocator.

Encapsulator for memory allocating routines

## Function Documentation

AXIS2_EXTERN void axutil_allocator_free | ( | axutil_allocator_t * | allocator | ) |

This function should be used to deallocate memory if the default allocator was provided by the axutil_allocator_init() call.

Parameters:

  | allocator | allocator struct to be freed

Returns:
  void

AXIS2_EXTERN axutil_allocator_t* axutil_allocator_init | ( | axutil_allocator_t * | allocator | ) |

Initializes (creates) a memory allocator.

Parameters:

  | allocator | user defined allocator. If NULL, a default allocator will be returned.

Returns:
  initialized allocator. NULL on error.

AXIS2_EXTERN void axutil_allocator_switch_to_global_pool | ( | axutil_allocator_t * | allocator | ) |

Swaps the local_pool and global_pool and makes the global pool the current pool. In case of using pools, local_pool is supposed to hold the pool out of which local values are allocated. In case of values that live beyond a request global pool should be used, hence this method has to be called to switch to global pool for allocation.

Parameters:

  | allocator | allocator whose memory pools are to be switched

Returns:
  void

AXIS2_EXTERN void axutil_allocator_switch_to_local_pool | ( | axutil_allocator_t * | allocator | ) |

Swaps the local_pool and global_pool and makes the local pool the current pool. In case of using pools, local_pool is supposed to hold the pool out of which local values are allocated. In case of values that live beyond a request global pool should be used. This method can be used to inverse the switching done by axutil_allocator_switch_to_global_pool, to start using the local pool again.

Parameters:

  | allocator | allocator whose memory pools are to be switched

Returns:
  void