Relocatable Memory Management Routines
[APR Utility Functions]

Typedefs
typedef apr_rmm_t	apr_rmm_t
typedef apr_size_t	apr_rmm_off_t
Functions
apr_status_t	apr_rmm_init (apr_rmm_t **rmm, apr_anylock_t *lock, void *membuf, apr_size_t memsize, apr_pool_t *cont)
apr_status_t	apr_rmm_destroy (apr_rmm_t *rmm)
apr_status_t	apr_rmm_attach (apr_rmm_t **rmm, apr_anylock_t *lock, void *membuf, apr_pool_t *cont)
apr_status_t	apr_rmm_detach (apr_rmm_t *rmm)
apr_rmm_off_t	apr_rmm_malloc (apr_rmm_t *rmm, apr_size_t reqsize)
apr_rmm_off_t	apr_rmm_realloc (apr_rmm_t *rmm, void *entity, apr_size_t reqsize)
apr_rmm_off_t	apr_rmm_calloc (apr_rmm_t *rmm, apr_size_t reqsize)
apr_status_t	apr_rmm_free (apr_rmm_t *rmm, apr_rmm_off_t entity)
void *	apr_rmm_addr_get (apr_rmm_t *rmm, apr_rmm_off_t entity)
apr_rmm_off_t	apr_rmm_offset_get (apr_rmm_t *rmm, void *entity)
apr_size_t	apr_rmm_overhead_get (int n)

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Typedef Documentation

typedef apr_size_t apr_rmm_off_t

Fundemental allocation unit, within a spcific apr_rmm_off_t

typedef struct apr_rmm_t apr_rmm_t

Structure to access Relocatable, Managed Memory

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Function Documentation

void* apr_rmm_addr_get (  apr_rmm_t *  rmm, apr_rmm_off_t  entity )

Retrieve the physical address of a relocatable allocation of memory Parameters: rmm  The relocatable memory block entity  The memory allocation to free

apr_status_t apr_rmm_attach (  apr_rmm_t **  rmm, apr_anylock_t *  lock, void *  membuf, apr_pool_t *  cont )

Attach to a relocatable memory block already managed by the apr_rmm API. Parameters: rmm  The relocatable memory block lock  An apr_anylock_t of the appropriate type of lock membuf  The block of relocateable memory already under management cont  The pool to use for local storage and management

apr_rmm_off_t apr_rmm_calloc (  apr_rmm_t *  rmm, apr_size_t  reqsize )

Allocate memory from the block of relocatable memory and initialize it to zero. Parameters: rmm  The relocatable memory block reqsize  How much memory to allocate

apr_status_t apr_rmm_destroy (  apr_rmm_t *  rmm  )

Destroy a managed memory block. Parameters: rmm  The relocatable memory block to destroy

apr_status_t apr_rmm_detach (  apr_rmm_t *  rmm  )

Detach from the managed block of memory. Parameters: rmm  The relocatable memory block to detach from

apr_status_t apr_rmm_free (  apr_rmm_t *  rmm, apr_rmm_off_t  entity )

Free allocation returned by apr_rmm_malloc or apr_rmm_calloc. Parameters: rmm  The relocatable memory block entity  The memory allocation to free

apr_status_t apr_rmm_init (  apr_rmm_t **  rmm, apr_anylock_t *  lock, void *  membuf, apr_size_t  memsize, apr_pool_t *  cont )

Initialize a relocatable memory block to be managed by the apr_rmm API. Parameters: rmm  The relocatable memory block lock  An apr_anylock_t of the appropriate type of lock membuf  The block of relocateable memory to be managed memsize  The size of relocateable memory block to be managed cont  The pool to use for local storage and management

apr_rmm_off_t apr_rmm_malloc (  apr_rmm_t *  rmm, apr_size_t  reqsize )

Allocate memory from the block of relocatable memory. Parameters: rmm  The relocatable memory block reqsize  How much memory to allocate

apr_rmm_off_t apr_rmm_offset_get (  apr_rmm_t *  rmm, void *  entity )

Compute the offset of a relocatable allocation of memory Parameters: rmm  The relocatable memory block entity  The physical address to convert to an offset

apr_size_t apr_rmm_overhead_get (  int  n  )

Compute the required overallocation of memory needed to fit n allocs Parameters: n  The number of alloc/calloc regions desired

apr_rmm_off_t apr_rmm_realloc (  apr_rmm_t *  rmm, void *  entity, apr_size_t  reqsize )

Realloc memory from the block of relocatable memory. Parameters: rmm  The relocatable memory block entity  The memory allocation to realloc reqsize  The new size

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