Returns the size of a buffer returned by mpool_alloc or mpool_realloc.

DWORD mpool_buffer_size(
    MPOOL pool, 
    void * buf
);

Parameters

pool

The memory pool created by mpool_create.

buf

The buffer created by mpool_alloc or mpool_realloc.

Remarks

Buffers always have a length of at least four and may be larger than the length requested by mpool_alloc or mpool_realloc.

Return Values

The buffer's size

Success.

0 (zero)

Failure. The function sets errno to one of these values:

EEXIST	The pool is deleted.
EINVAL	The pool is not a valid MPOOL.

Requirements