chore(metric): Add metric interface

Signed-off-by: Bo-Yi Wu <[email protected]>

Author: appleboy

go.mod

@@ -3,7 +3,7 @@ module github.com/golang-queue/nsq
 go 1.16
 
 require (
-	github.com/golang-queue/queue v0.0.8
+	github.com/golang-queue/queue v0.0.10
 	github.com/nsqio/go-nsq v1.0.8
 	github.com/stretchr/testify v1.7.0
 )

go.sum

@@ -1,17 +1,51 @@
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+github.com/golang-queue/queue v0.0.10 h1:cGqMgHMf2eamwdd3hmOzGcSQogGu9tMhhVYPQMrMC1g=
+github.com/golang-queue/queue v0.0.10/go.mod h1:ku8iyjYffqYY6Duts+xl+QYfN3/KDK4MEvXMZUkHyio=
 github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
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 github.com/nsqio/go-nsq v1.0.8/go.mod h1:vKq36oyeVXgsS5Q8YEO7WghqidAVXQlcFxzQbQTuDEY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
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+go.uber.org/goleak v1.1.12/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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nsq.go

@@ -33,20 +33,20 @@ type Worker struct {
 	logger      queue.Logger
 	stopFlag    int32
 	startFlag   int32
-	busyWorkers uint64
+	metric      queue.Metric
 }
 
 func (w *Worker) incBusyWorker() {
-	atomic.AddUint64(&w.busyWorkers, 1)
+	w.metric.IncBusyWorker()
 }
 
 func (w *Worker) decBusyWorker() {
-	atomic.AddUint64(&w.busyWorkers, ^uint64(0))
+	w.metric.DecBusyWorker()
 }
 
 // BusyWorkers return count of busy workers currently.
 func (w *Worker) BusyWorkers() uint64 {
-	return atomic.LoadUint64(&w.busyWorkers)
+	return w.metric.BusyWorkers()
 }
 
 // WithAddr setup the addr of NSQ