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MINOR: htx: Add a function to know if a block is the only one in a message

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The htx_is_unique_blk() function may now be used to know if a block is the
only one in an HTX message, excluding all unused blocks. Note the purpose of
this function is not to know if a block is the last one of an HTTP message.
This means no more data part from the message are expected, except tunneled
data. It only says if a block is alone in an HTX message.
This commit is contained in:
Christopher Faulet 2020-12-02 17:40:54 +01:00
parent d8b44f0d9f
commit 789a472674
1 changed files with 10 additions and 0 deletions
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10
include/haproxy/htx.h
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@ -307,6 +307,16 @@ static inline struct htx_blk *htx_get_next_blk(const struct htx *htx,
return ((pos == -1) ? NULL : htx_get_blk(htx, pos));
}
/* Returns 1 if <blk> is the block is the only one inside the HTX message <htx>,
* excluding all unsued blocks. Otherwise, it returns 0. If 1 is returned, this
* means that there is only <blk> and eventually some unused ones in <htx>.
*/
static inline int htx_is_unique_blk(const struct htx *htx,
const struct htx_blk *blk)
{
return (htx_get_blksz(blk) == htx->data);
}
/* Changes the size of the value. It is the caller responsibility to change the
* value itself, make sure there is enough space and update allocated
* value. This function updates the HTX message accordingly.