55 lines
854 B
C
55 lines
854 B
C
#ifndef __HALO_INCLUDE_RING_
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#define __HALO_INCLUDE_RING_
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#include <stddef.h>
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/*
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* circular ring buffer for continous reading and writing
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*/
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struct ring_t {
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/*
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* the current length of the unread data in the buffer
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*/
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size_t buflen;
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/*
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* the full buffer
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*/
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char *buffer;
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/*
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* the beginning of the full buffer
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*/
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char *begin;
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/*
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* the ending of the full buffer
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*/
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char *end;
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/*
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* the beginning of the unread data in the buffer
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*/
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char *reader;
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/*
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* the end of the unread data in the buffer
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*/
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char *writer;
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};
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struct ring_t *ring_new(struct ring_t *buf, size_t len);
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size_t ring_write(struct ring_t *buf, char *str, size_t orig_len);
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char *ring_read(struct ring_t *buf, size_t *len);
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char *ring_readln(struct ring_t *buf, size_t *len);
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void ring_del(struct ring_t *buf);
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#endif
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