Add a "usage" parameter which reports cache file usage.

git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@1767 d4fa192b-c00b-0410-8231-f00ffab90ce4

diff --git a/varnish-tools/nagios/check_varnish.c b/varnish-tools/nagios/check_varnish.c
index 2b701baf282c95efed5f2df067780dda7a9516bb..886ac87293257eb0666bae3c2c4ca211c1162e1f 100644 (file)
--- a/varnish-tools/nagios/check_varnish.c
+++ b/varnish-tools/nagios/check_varnish.c
@@ -99,6 +99,15 @@ check_stats(struct varnish_stats *VSL_stats, char *param, int w, int c, int less
                level = check_threshold(ratio, w, c, less);
                message_and_exit(level, ratio, "Cache hit ratio");
        }
+       if (strcmp(param, "usage") == 0) {
+               intmax_t total = VSL_stats->sm_balloc + VSL_stats->sm_bfree;
+               double ratio = 0;
+
+               if (total > 0)
+                       ratio = 100.0 * VSL_stats->sm_balloc / total;
+               level = check_threshold(ratio, w, c, less);
+               message_and_exit(level, ratio, "Cache file usage");
+       }
 #define MAC_STAT(n, t, f, d) \
        else if (strcmp(param, #n) == 0) { \
                intmax_t val = VSL_stats->n; \
@@ -135,6 +144,7 @@ help(void)
            "\n"
            "ratio   The cache hit ratio expressed as a percentage of hits to\n"
            "        hits + misses.  Default thresholds are 95 and 90.\n"
+           "usage   Cache file usage as a percentage of the total cache space.\n"
        );
        exit(0);
 }