rt-thread 环形块状缓冲区如何使用，能不能写几句程序给个参考，谢谢

发布于 2021-08-23 13:52:36 浏览：1538 订阅该版

```c
/* rbb (ring block buffer) API */
void rt_rbb_init(rt_rbb_t rbb, rt_uint8_t *buf, rt_size_t buf_size, rt_rbb_blk_t block_set, rt_size_t blk_max_num);
rt_rbb_t rt_rbb_create(rt_size_t buf_size, rt_size_t blk_max_num);
void rt_rbb_destroy(rt_rbb_t rbb);
rt_size_t rt_rbb_get_buf_size(rt_rbb_t rbb);

/* rbb block API */
rt_rbb_blk_t rt_rbb_blk_alloc(rt_rbb_t rbb, rt_size_t blk_size);
void rt_rbb_blk_put(rt_rbb_blk_t block);
rt_rbb_blk_t rt_rbb_blk_get(rt_rbb_t rbb);
rt_size_t rt_rbb_blk_size(rt_rbb_blk_t block);
rt_uint8_t *rt_rbb_blk_buf(rt_rbb_blk_t block);
void rt_rbb_blk_free(rt_rbb_t rbb, rt_rbb_blk_t block);

/* rbb block queue API */
rt_size_t rt_rbb_blk_queue_get(rt_rbb_t rbb, rt_size_t queue_data_len, rt_rbb_blk_queue_t blk_queue);
rt_size_t rt_rbb_blk_queue_len(rt_rbb_blk_queue_t blk_queue);
rt_uint8_t *rt_rbb_blk_queue_buf(rt_rbb_blk_queue_t blk_queue);
void rt_rbb_blk_queue_free(rt_rbb_t rbb, rt_rbb_blk_queue_t blk_queue);
rt_size_t rt_rbb_next_blk_queue_len(rt_rbb_t rbb);
```