61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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* ringbuf.h
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*
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* Created on: Apr 22, 2016
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* Author: liuhan
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*/
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#ifndef _ESPCONN_BUF_H_
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#define _ESPCONN_BUF_H_
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/*
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* ringbuffer.c
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*
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* Created on: Apr 22, 2016
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* Author: liuhan
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*/
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#include "c_types.h"
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#include "ets_sys.h"
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#include "os_type.h"
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typedef struct ringbuf_t {
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uint8_t *buf;
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uint8_t *head, *tail;
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size_t size;
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} ringbuf, *ringbuf_t;
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ringbuf_t ringbuf_new(size_t capacity);
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size_t ringbuf_buffer_size(const struct ringbuf_t *rb);
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void ringbuf_reset(ringbuf_t rb);
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void ringbuf_free(ringbuf_t *rb);
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size_t ringbuf_capacity(const struct ringbuf_t *rb);
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size_t ringbuf_bytes_free(const struct ringbuf_t *rb);
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size_t ringbuf_bytes_used(const struct ringbuf_t *rb);
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int ringbuf_is_full(const struct ringbuf_t *rb);
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int ringbuf_is_empty(const struct ringbuf_t *rb);
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const void* ringbuf_tail(const struct ringbuf_t *rb);
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const void* ringbuf_head(const struct ringbuf_t *rb);
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static uint8_t *ringbuf_nextp(ringbuf_t rb, const uint8_t *p);
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size_t ringbuf_findchr(const struct ringbuf_t *rb, int c, size_t offset);
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size_t ringbuf_memset(ringbuf_t dst, int c, size_t len);
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void *ringbuf_memcpy_into(ringbuf_t dst, const void *src, size_t count);
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void *ringbuf_memcpy_from(void *dst, ringbuf_t src, size_t count);
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#endif /* RINGBUF_H_ */
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