From: Florian Forster <octo@collectd.org>
Date: Mon, 29 Jan 2024 13:15:24 +0000 (+0100)
Subject: src/daemon/utils_cache.c: Add comment about initializing `ce->values_gauge` for non... 
X-Git-Tag: collectd-6.0.0.rc2~13^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F4258%2Fhead;p=thirdparty%2Fcollectd.git

src/daemon/utils_cache.c: Add comment about initializing `ce->values_gauge` for non-gauge types.
---

diff --git a/src/daemon/utils_cache.c b/src/daemon/utils_cache.c
index 0045464e1..ba4f1080d 100644
--- a/src/daemon/utils_cache.c
+++ b/src/daemon/utils_cache.c
@@ -151,6 +151,8 @@ static int uc_insert(metric_t const *m, char const *key) {
   switch (m->family->type) {
   case DS_TYPE_COUNTER:
   case DS_TYPE_DERIVE:
+    // Non-gauge types will store the rate in values_gauge when the second data
+    // point is available. Initially, NAN signifies "not enough data".
     ce->values_gauge = NAN;
     break;