Merge pull request #15 from axoflow/event-delay-metrics

go.mod

@@ -6,13 +6,12 @@ replace github.com/axoflow/axosyslog-metrics-exporter/pkg/syslog-ng-ctl => ./pkg
 
 require (
 	github.com/axoflow/axosyslog-metrics-exporter/pkg/syslog-ng-ctl v0.0.0-00010101000000-000000000000
-	github.com/prometheus/common v0.44.0
+	github.com/prometheus/common v0.46.0
+	golang.org/x/exp v0.0.0-20240119083558-1b970713d09a
 )
 
 require (
-	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
-	github.com/prometheus/client_model v0.4.0 // indirect
-	golang.org/x/exp v0.0.0-20230728194245-b0cb94b80691 // indirect
-	google.golang.org/protobuf v1.30.0 // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/prometheus v0.50.1 // indirect
+	google.golang.org/protobuf v1.32.0 // indirect
 )

go.sum

@@ -1,24 +1,15 @@
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go.work.sum

@@ -1,7 +1,89 @@
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+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

pkg/syslog-ng-ctl/controller.go

@@ -16,6 +16,7 @@ package syslogngctl
 
 import (
 	"context"
+	"time"
 
 	io_prometheus_client "github.com/prometheus/client_model/go"
 )
@@ -24,7 +25,8 @@ import (
 //
 // Reference for available commands in syslog-ng-ctl's source code: https://github.com/syslog-ng/syslog-ng/blob/0e7c762c704efbda0ae10b61c35700ef0bdbb9c1/syslog-ng-ctl/syslog-ng-ctl.c#L111
 type Controller struct {
-	ControlChannel ControlChannel
+	ControlChannel      ControlChannel
+	lastMetricQueryTime time.Time
 }
 
 func (c Controller) GetLicenseInfo(ctx context.Context) (string, error) {
@@ -52,5 +54,5 @@ func (c Controller) PreprocessedConfig(ctx context.Context) (string, error) {
 }
 
 func (c Controller) StatsPrometheus(ctx context.Context) ([]*io_prometheus_client.MetricFamily, error) {
-	return StatsPrometheus(ctx, c.ControlChannel)
+	return StatsPrometheus(ctx, c.ControlChannel, &c.lastMetricQueryTime)
 }