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MINOR: applet: Add function to get amount of data in the output buffer

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The helper function applet_output_data() returns the amount of data in the
output buffer of an applet. For applets using the new API, it is based on
data present in the outbuf buffer. For legacy applets, it is based on input
data present in the input channel's buffer. The HTX version,
applet_htx_output_data(), is also available

This patch is related to issue #1617.
This commit is contained in:
Christopher Faulet 2025-11-05 11:36:07 +01:00
parent 4991a51208
commit 1effe0fc0a
1 changed files with 21 additions and 0 deletions
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21
include/haproxy/applet.h
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@ -340,6 +340,27 @@ static inline size_t applet_input_data(const struct appctx *appctx)
return co_data(sc_oc(appctx_sc(appctx)));
}
/* Returns the amount of HTX data in the output buffer (see applet_get_outbuf) */
static inline size_t applet_htx_output_data(const struct appctx *appctx)
{
if (appctx_app_test(appctx, APPLET_FL_NEW_API))
return htx_used_space(htxbuf(&appctx->outbuf));
else
return ci_data(sc_ic(appctx_sc(appctx)));
}
/* Returns the amount of data in the output buffer (see applet_get_outbuf) */
static inline size_t applet_output_data(const struct appctx *appctx)
{
if (appctx_app_test(appctx, APPLET_FL_HTX))
return applet_htx_output_data(appctx);
if (appctx_app_test(appctx, APPLET_FL_NEW_API))
return b_data(&appctx->outbuf);
else
return ci_data(sc_ic(appctx_sc(appctx)));
}
/* Skips <len> bytes from the input buffer (see applet_get_inbuf).
*
* This is useful when data have been read directly from the buffer. It is