Allocate empty slot in the resource tree given range & alignment. the resource will be reallocated with a new size if it was already allocated
int allocate_resource(struct resource * root, struct resource * new, resource_size_t size, resource_size_t min, resource_size_t max, resource_size_t align, resource_size_t (*alignf) (void *, const struct resource *, resource_size_t, resource_size_t), void * alignf_data);
root
root resource descriptor
new
resource descriptor desired by caller
size
requested resource region size
min
minimum boundary to allocate
max
maximum boundary to allocate
align
alignment requested, in bytes
alignf
alignment function, optional, called if not NULL
alignf_data
arbitrary data to pass to the alignf function