From 9eaab95519832bc0ce65316b3181d809549814d0 Mon Sep 17 00:00:00 2001
From: Vasiliy Tolstov <v.tolstov@unistack.org>
Date: Sun, 12 Oct 2025 14:24:44 +0300
Subject: [PATCH] meter: improve Gauge

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
---
 meter/meter.go |  4 ++++
 meter/noop.go  | 12 ++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/meter/meter.go b/meter/meter.go
index 9741b7fa..c01f98ef 100644
--- a/meter/meter.go
+++ b/meter/meter.go
@@ -82,7 +82,11 @@ type FloatCounter interface {
 
 // Gauge is a float64 gauge
 type Gauge interface {
+	Add(float64)
 	Get() float64
+	Set(float64)
+	Dec()
+	Inc()
 }
 
 // Histogram is a histogram for non-negative values with automatically created buckets
diff --git a/meter/noop.go b/meter/noop.go
index f6d2ea0d..8f397310 100644
--- a/meter/noop.go
+++ b/meter/noop.go
@@ -136,6 +136,18 @@ type noopGauge struct {
 	labels []string
 }
 
+func (r *noopGauge) Add(float64) {
+}
+
+func (r *noopGauge) Set(float64) {
+}
+
+func (r *noopGauge) Inc() {
+}
+
+func (r *noopGauge) Dec() {
+}
+
 func (r *noopGauge) Get() float64 {
 	return 0
 }