From: Alex Rousskov <rousskov@measurement-factory.com>
Date: Thu, 1 Jul 2010 22:01:14 +0000 (-0600)
Subject: Optimization: Format "kidN" label for debugging once because it never changes
X-Git-Tag: SQUID_3_2_0_1~93^2~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4b3dc6ecc847fff3489d46987fdd529dd180ddbf;p=thirdparty%2Fsquid.git

Optimization: Format "kidN" label for debugging once because it never changes
after KidIdentifier is set.
---

diff --git a/src/debug.cc b/src/debug.cc
index 41b4907ad4..edcaf70120 100644
--- a/src/debug.cc
+++ b/src/debug.cc
@@ -551,7 +551,8 @@ debugLogKid(void)
 {
     if (KidIdentifier != 0) {
 		static char buf[16];
-        snprintf(buf, sizeof(buf), " kid%d", KidIdentifier);
+        if (!*buf) // optimization: fill only once after KidIdentifier is set
+            snprintf(buf, sizeof(buf), " kid%d", KidIdentifier);
 		return buf;
     }