初始版本

2026-04-23 13:49:53 +08:00
parent c1d6ebd38c
commit ac718a463a
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+/******************************************************************************
+ * @brief    环形缓冲区管理(参考linux/kfifo)
+ *
+ * Copyright (c) 2016~2020, <morro_luo@163.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs: 
+ * Date           Author       Notes 
+ * 2016-05-30     Morro        初版完成
+ ******************************************************************************/
+
+#ifndef _RING_BUF_H_
+#define _RING_BUF_H_
+
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*环形缓冲区管理器*/
+typedef struct {
+     unsigned char *buf;    /*环形缓冲区        */
+     unsigned int size;     /*环形缓冲区        */
+     unsigned int front;    /*头指针            */
+     unsigned int rear;     /*尾指针            */
+}ring_buf_t;
+
+bool ring_buf_init(ring_buf_t *r,unsigned char *buf,unsigned int size);
+
+void ring_buf_clr(ring_buf_t *r);
+
+int ring_buf_len(ring_buf_t *r);
+
+int ring_buf_put(ring_buf_t *r,unsigned char *buf,unsigned int len);
+
+int ring_buf_get(ring_buf_t *r,unsigned char *buf,unsigned int len);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif