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MINOR: htx: Add function htx_get_max_blksz()

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This functions should be used to get the maximum size for a block, not exceeding
the max amount of bytes passed in argument. Thus max may be set to -1 to have no
limit.
This commit is contained in:
Christopher Faulet 2019-05-16 11:16:39 +02:00 committed by Willy Tarreau
parent aad458587d
commit 2ae35045e2
1 changed files with 14 additions and 0 deletions
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14
include/common/htx.h
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@ -687,6 +687,20 @@ static inline uint32_t htx_free_data_space(const struct htx *htx)
return (free - sizeof(htx->blocks[0])); return (free - sizeof(htx->blocks[0]));
} }
/* Returns the maximum size for a block, not exceeding <max> bytes. <max> may be
* set to -1 to have no limit.
*/
static inline uint32_t htx_get_max_blksz(const struct htx *htx, int32_t max)
{
uint32_t free = htx_free_space(htx);
if (max != -1 && free > max)
free = max;
if (free < sizeof(htx->blocks[0]))
return 0;
return (free - sizeof(htx->blocks[0]));
}
/* Returns 1 if the message has less than 1/4 of its capacity free, otherwise 0 */ /* Returns 1 if the message has less than 1/4 of its capacity free, otherwise 0 */
static inline int htx_almost_full(const struct htx *htx) static inline int htx_almost_full(const struct htx *htx)
{ {