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https://github.com/haproxy/haproxy.git
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53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
#ifndef _HAPROXY_NCBMBUF_H
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#define _HAPROXY_NCBMBUF_H
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#include <haproxy/ncbmbuf-t.h>
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static inline int ncbmb_is_null(const struct ncbmbuf *buf)
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{
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return buf->size == 0;
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}
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void ncbmb_init(struct ncbmbuf *buf, ncb_sz_t head);
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struct ncbmbuf ncbmb_make(char *area, ncb_sz_t size, ncb_sz_t head);
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/* Returns start of allocated buffer area. */
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static inline char *ncbmb_orig(const struct ncbmbuf *buf)
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{
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return buf->area;
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}
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/* Returns current head pointer into buffer area. */
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static inline char *ncbmb_head(const struct ncbmbuf *buf)
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{
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return buf->area + buf->head;
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}
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/* Returns the first byte after the allocated buffer area. */
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static inline char *ncbmb_wrap(const struct ncbmbuf *buf)
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{
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return buf->area + buf->size;
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}
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/* Returns the usable size of <buf> for data storage. This is the size of the
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* allocated buffer without the bitmap space.
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*/
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static inline ncb_sz_t ncbmb_size(const struct ncbmbuf *buf)
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{
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if (ncbmb_is_null(buf))
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return 0;
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return buf->size;
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}
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int ncbmb_is_empty(const struct ncbmbuf *buf);
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int ncbmb_is_full(const struct ncbmbuf *buf);
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ncb_sz_t ncbmb_data(const struct ncbmbuf *buf, ncb_sz_t offset);
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enum ncb_ret ncbmb_add(struct ncbmbuf *buf, ncb_sz_t off,
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const char *data, ncb_sz_t len, enum ncb_add_mode mode);
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enum ncb_ret ncbmb_advance(struct ncbmbuf *buf, ncb_sz_t adv);
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#endif /* _HAPROXY_NCBMBUF_H */
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