From: Christopher Faulet <cfaulet@haproxy.com>
Date: Thu, 23 May 2019 09:11:52 +0000 (+0200)
Subject: MINOR: htx: Optimize htx_drain() when all data are drained
X-Git-Tag: v2.0-dev5~27
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0f6d6a9ab6d988395ab294bfff98168d716761b0;p=thirdparty%2Fhaproxy.git

MINOR: htx: Optimize htx_drain() when all data are drained

Instead of looping on the HTX message to drain all data, the message is now
reset..
---

diff --git a/src/htx.c b/src/htx.c
index dbf8dea379..60bfc049b2 100644
--- a/src/htx.c
+++ b/src/htx.c
@@ -309,6 +309,12 @@ struct htx_ret htx_drain(struct htx *htx, uint32_t count)
 	struct htx_blk *blk;
 	struct htx_ret htxret = { .blk = NULL, .ret = 0 };
 
+	if (count == htx->data) {
+		htx_reset(htx);
+		htxret.ret = count;
+		return htxret;
+	}
+
 	blk = htx_get_head_blk(htx);
 	while (count && blk) {
 		uint32_t sz = htx_get_blksz(blk);