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MINOR: ring: also add ring_area(), ring_head(), ring_tail()

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These will essentially be used to simplify the conversion to a new API.
This commit is contained in:
Willy Tarreau 2024-03-06 16:40:39 +01:00
parent dc4836c15c
commit b30fd8cc2d
1 changed files with 18 additions and 0 deletions
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18
include/haproxy/ring.h
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@ -45,6 +45,12 @@ size_t ring_max_payload(const struct ring *ring);
int ring_dispatch_messages(struct ring *ring, void *ctx, size_t *ofs_ptr, size_t *last_ofs_ptr, uint flags,
ssize_t (*msg_handler)(void *ctx, const struct buffer *buf, size_t ofs, size_t len));
/* returns the ring storage's area */
static inline void *ring_area(const struct ring *ring)
{
return b_orig(&ring->buf);
}
/* returns the number of bytes in the ring */
static inline size_t ring_data(const struct ring *ring)
{
@ -57,6 +63,18 @@ static inline size_t ring_size(const struct ring *ring)
return b_size(&ring->buf);
}
/* returns the head offset of the ring */
static inline size_t ring_head(const struct ring *ring)
{
return b_head_ofs(&ring->buf);
}
/* returns the tail offset of the ring */
static inline size_t ring_tail(const struct ring *ring)
{
return b_tail_ofs(&ring->buf);
}
/* duplicates ring <src> over ring <dst> for no more than <max> bytes or no
* more than the amount of data present in <src>. It's assumed that the
* destination ring is always large enough for <max>. The number of bytes