VOL-2496 Add "event listen" command to voltctl
Change-Id: I8f1fb34b55f56c8125142ac289e2f19fc170d804
diff --git a/vendor/github.com/rcrowley/go-metrics/syslog.go b/vendor/github.com/rcrowley/go-metrics/syslog.go
new file mode 100644
index 0000000..693f190
--- /dev/null
+++ b/vendor/github.com/rcrowley/go-metrics/syslog.go
@@ -0,0 +1,78 @@
+// +build !windows
+
+package metrics
+
+import (
+ "fmt"
+ "log/syslog"
+ "time"
+)
+
+// Output each metric in the given registry to syslog periodically using
+// the given syslogger.
+func Syslog(r Registry, d time.Duration, w *syslog.Writer) {
+ for _ = range time.Tick(d) {
+ r.Each(func(name string, i interface{}) {
+ switch metric := i.(type) {
+ case Counter:
+ w.Info(fmt.Sprintf("counter %s: count: %d", name, metric.Count()))
+ case Gauge:
+ w.Info(fmt.Sprintf("gauge %s: value: %d", name, metric.Value()))
+ case GaugeFloat64:
+ w.Info(fmt.Sprintf("gauge %s: value: %f", name, metric.Value()))
+ case Healthcheck:
+ metric.Check()
+ w.Info(fmt.Sprintf("healthcheck %s: error: %v", name, metric.Error()))
+ case Histogram:
+ h := metric.Snapshot()
+ ps := h.Percentiles([]float64{0.5, 0.75, 0.95, 0.99, 0.999})
+ w.Info(fmt.Sprintf(
+ "histogram %s: count: %d min: %d max: %d mean: %.2f stddev: %.2f median: %.2f 75%%: %.2f 95%%: %.2f 99%%: %.2f 99.9%%: %.2f",
+ name,
+ h.Count(),
+ h.Min(),
+ h.Max(),
+ h.Mean(),
+ h.StdDev(),
+ ps[0],
+ ps[1],
+ ps[2],
+ ps[3],
+ ps[4],
+ ))
+ case Meter:
+ m := metric.Snapshot()
+ w.Info(fmt.Sprintf(
+ "meter %s: count: %d 1-min: %.2f 5-min: %.2f 15-min: %.2f mean: %.2f",
+ name,
+ m.Count(),
+ m.Rate1(),
+ m.Rate5(),
+ m.Rate15(),
+ m.RateMean(),
+ ))
+ case Timer:
+ t := metric.Snapshot()
+ ps := t.Percentiles([]float64{0.5, 0.75, 0.95, 0.99, 0.999})
+ w.Info(fmt.Sprintf(
+ "timer %s: count: %d min: %d max: %d mean: %.2f stddev: %.2f median: %.2f 75%%: %.2f 95%%: %.2f 99%%: %.2f 99.9%%: %.2f 1-min: %.2f 5-min: %.2f 15-min: %.2f mean-rate: %.2f",
+ name,
+ t.Count(),
+ t.Min(),
+ t.Max(),
+ t.Mean(),
+ t.StdDev(),
+ ps[0],
+ ps[1],
+ ps[2],
+ ps[3],
+ ps[4],
+ t.Rate1(),
+ t.Rate5(),
+ t.Rate15(),
+ t.RateMean(),
+ ))
+ }
+ })
+ }
+}