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- /*
- * Copyright (C) 2021 Alibaba Group Holding Limited
- * Author: zhuxinran <fuqian.zxr@alibaba-inc.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- /*
- * Copyright (C) 2017-2020 Alibaba Group Holding Limited
- */
- #ifndef _DRV_RINGBUFFER_H_
- #define _DRV_RINGBUFFER_H_
- #ifdef __cplusplus
- extern "C" {
- #endif
- #include "stdint.h"
- #include <stdbool.h>
- typedef struct ringbuffer {
- uint8_t *buffer;
- uint32_t size;
- uint32_t write;
- uint32_t read;
- uint32_t data_len;
- } ringbuffer_t;
- void ringbuffer_reset(ringbuffer_t *fifo);
- uint32_t ringbuffer_len(ringbuffer_t *fifo);
- uint32_t ringbuffer_avail(ringbuffer_t *fifo);
- bool ringbuffer_is_empty(ringbuffer_t *fifo);
- bool ringbuffer_is_full(ringbuffer_t *fifo);
- /*write to ringbuffer*/
- uint32_t ringbuffer_in(ringbuffer_t *fifo, const void *in, uint32_t len);
- /*read to ringbuffer*/
- uint32_t ringbuffer_out(ringbuffer_t *fifo, void *out, uint32_t len);
- #ifdef __cplusplus
- }
- #endif
- #endif /* _DRV_RINGBUFFER_H_ */
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