/usr/include/ringbuf.h is in uthash-dev 1.9.9.1+git20151125-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #ifndef _RINGBUF_H_
#define _RINGBUF_H_
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
/* simple ring buffer */
typedef struct _ringbuf {
size_t n; /* allocd size */
size_t u; /* used space */
size_t i; /* input pos */
size_t o; /* output pos */
char d[]; /* C99 flexible array member */
} ringbuf;
ringbuf *ringbuf_new(size_t sz);
int ringbuf_put(ringbuf *, const void *data, size_t len);
size_t ringbuf_get_pending_size(ringbuf *);
size_t ringbuf_get_next_chunk(ringbuf *, char **data);
void ringbuf_mark_consumed(ringbuf *, size_t);
void ringbuf_free(ringbuf*);
void ringbuf_clear(ringbuf*);
#endif /* _RINGBUF_H_ */
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