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MINOR: htx: add a function to cut the beginning of a DATA block

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htx_cut_data_blk() is used to cut the beginning of a DATA block after a
part of it was tranferred. It simply advances the address, reduces the
advertised length and updates the htx's total data count.
This commit is contained in:
Willy Tarreau 2018-11-30 14:29:31 +01:00
parent d3c49d17dc
commit c01ed9ff20
1 changed files with 13 additions and 0 deletions
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13
include/proto/htx.h
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@ -337,6 +337,19 @@ static inline struct ist htx_get_blk_value(const struct htx *htx, const struct h
return ret;
}
/* Removes <n> bytes from the beginning of DATA block <blk>. The block's start
* address and its length are adjusted, and the htx's total data count is
* updated. This is used to mark that part of some data were transfered
* from a DATA block without removing this DATA block. No sanity check is
* performed, the caller is reponsible for doing this exclusively on DATA
* blocks, and never removing more than the block's size.
*/
static inline void htx_cut_data_blk(struct htx *htx, struct htx_blk *blk, uint32_t n)
{
blk->addr += n;
blk->info -= n;
htx->data -= n;
}
/* Returns the space used by metadata in <htx>. */
static inline uint32_t htx_meta_space(const struct htx *htx)