137     rt_rbb_blk_t head, tail, new = NULL;  in rt_rbb_blk_alloc()  local
144     new = find_empty_blk_in_set(rbb);  in rt_rbb_blk_alloc()
146     if (rt_slist_len(&rbb->blk_list) < rbb->blk_max_num && new)  in rt_rbb_blk_alloc()
166                     rt_slist_append(&rbb->blk_list, &new->list);  in rt_rbb_blk_alloc()
167                     new->status = RT_RBB_BLK_INITED;  in rt_rbb_blk_alloc()
168                     new->buf = tail->buf + tail->size;  in rt_rbb_blk_alloc()
169                     new->size = blk_size;  in rt_rbb_blk_alloc()
173                     rt_slist_append(&rbb->blk_list, &new->list);  in rt_rbb_blk_alloc()
174                     new->status = RT_RBB_BLK_INITED;  in rt_rbb_blk_alloc()
175                     new->buf = rbb->buf;  in rt_rbb_blk_alloc()
176                     new->size = blk_size;  in rt_rbb_blk_alloc()
181                     new = NULL;  in rt_rbb_blk_alloc()
197                     rt_slist_append(&rbb->blk_list, &new->list);  in rt_rbb_blk_alloc()
198                     new->status = RT_RBB_BLK_INITED;  in rt_rbb_blk_alloc()
199                     new->buf = tail->buf + tail->size;  in rt_rbb_blk_alloc()
200                     new->size = blk_size;  in rt_rbb_blk_alloc()
205                     new = NULL;  in rt_rbb_blk_alloc()
212             rt_slist_append(&rbb->blk_list, &new->list);  in rt_rbb_blk_alloc()
213             new->status = RT_RBB_BLK_INITED;  in rt_rbb_blk_alloc()
214             new->buf = rbb->buf;  in rt_rbb_blk_alloc()
215             new->size = blk_size;  in rt_rbb_blk_alloc()
220         new = NULL;  in rt_rbb_blk_alloc()
225     return new;  in rt_rbb_blk_alloc()