From 7edd708f85562943539ec927775c1b083f079b2d Mon Sep 17 00:00:00 2001
From: Robert Kaiser <kairo@kairo.at>
Date: Mon, 27 Jun 2016 18:48:48 +0200
Subject: [PATCH] only cache the last_update value for 10 seconds, so that we
can reasonably use this function to wait for updates but still don't flodd
the commandline with requests
---
include/classes/rrdstat.php-class | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/classes/rrdstat.php-class b/include/classes/rrdstat.php-class
index aa7079d..ce334e0 100644
--- a/include/classes/rrdstat.php-class
+++ b/include/classes/rrdstat.php-class
@@ -476,11 +476,13 @@ class rrdstat {
public function last_update() {
// fetch time of last update in this RRD file
- static $last_update;
+ static $last_update, $last_saved;
+ if (isset($last_update) && isset($last_saved) && ($last_saved <= (time() - 10))) { unset($last_update); }
if (!isset($last_update) && in_array($this->status, array('ok','readonly'))) {
$last_cmd = $this->rrdtool_bin.' last '.$this->rrd_file;
$return = trim(`$last_cmd 2>&1`);
$last_update = is_numeric($return)?$return:null;
+ $last_saved = time();
}
return isset($last_update)?$last_update:null;
}
--
2.43.0