27 lines
688 B
C
27 lines
688 B
C
#ifndef _RINGBUF_H_
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#define _RINGBUF_H_
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <assert.h>
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/* simple ring buffer */
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typedef struct _ringbuf {
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size_t n; /* allocd size */
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size_t u; /* used space */
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size_t i; /* input pos */
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size_t o; /* output pos */
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char d[]; /* C99 flexible array member */
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} ringbuf;
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ringbuf *ringbuf_new(size_t sz);
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int ringbuf_put(ringbuf *r, const void *data, size_t len);
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size_t ringbuf_get_pending_size(ringbuf *r);
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size_t ringbuf_get_next_chunk(ringbuf *r, char **data);
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void ringbuf_mark_consumed(ringbuf *r, size_t len);
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void ringbuf_free(ringbuf *r);
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void ringbuf_clear(ringbuf *r);
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#endif /* _RINGBUF_H_ */
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