add ctx to v01

src/device/input/button/parser.go

@@ -13,7 +13,7 @@ type Parser interface {
 
 func New(ctx context.Context, src raw.Raw) Parser {
 	if os.Getenv("BUTTON_PARSER_V01") == "true" {
-		return NewV01(src)
+		return NewV01(ctx, src)
 	}
 	return NewPlaintext(src)
 }

src/device/input/button/v01.go

@@ -1,6 +1,7 @@
 package button
 
 import (
+	"context"
 	"encoding/json"
 	"io/ioutil"
 	"log"
@@ -15,6 +16,8 @@ var debugging = os.Getenv("DEBUG") == "true"
 
 type (
 	V01 struct {
+		ctx context.Context
+		can context.CancelFunc
 		src raw.Raw
 		cfg v01Cfg
 	}
@@ -36,17 +39,21 @@ type (
 	v01Transformation map[string]string
 )
 
-func NewV01(src raw.Raw) V01 {
+func NewV01(ctx context.Context, src raw.Raw) V01 {
 	var cfg v01Cfg
 	b, _ := ioutil.ReadFile(os.Getenv("BUTTON_PARSER_V01_CONFIG"))
 	yaml.Unmarshal(b, &cfg)
+	ctx, can := context.WithCancel(ctx)
 	return V01{
+		ctx: ctx,
+		can: can,
 		src: src,
 		cfg: cfg,
 	}
 }
 
 func (v01 V01) Close() {
+	v01.can()
 	v01.src.Close()
 }
 

src/device/input/button/v01_exported_test.go

@@ -1,6 +1,7 @@
 package button_test
 
 import (
+	"context"
 	"fmt"
 	"mayhem-party/src/device/input/button"
 	"os"
@@ -12,7 +13,7 @@ import (
 func TestV01(t *testing.T) {
 	src := constSrc(fmt.Sprintf(`{"T":%v,"U":"bel","Y":"abc","N":"cde"}`, time.Now().UnixNano()/int64(time.Millisecond)-50))
 	t.Logf("(%v) %s", len(src), src.Read())
-	v01 := button.NewV01(src)
+	v01 := button.NewV01(context.Background(), src)
 	got := v01.Read()
 	want := []button.Button{
 		{Down: true, Char: 'a'},
@@ -48,7 +49,7 @@ func TestV01WithCfg(t *testing.T) {
 	os.Setenv("BUTTON_PARSER_V01_CONFIG", p)
 
 	t.Run("unknown user ignored", func(t *testing.T) {
-		v01 := button.NewV01(constSrc(`{"U":"qt","Y":"w"}`))
+		v01 := button.NewV01(context.Background(), constSrc(`{"U":"qt","Y":"w"}`))
 		got := v01.Read()
 		if len(got) != 0 {
 			t.Error(got)
@@ -56,7 +57,7 @@ func TestV01WithCfg(t *testing.T) {
 	})
 
 	t.Run("player2", func(t *testing.T) {
-		v01 := button.NewV01(constSrc(`{"U":"bel","Y":"w","N":"w"}`))
+		v01 := button.NewV01(context.Background(), constSrc(`{"U":"bel","Y":"w","N":"w"}`))
 		got := v01.Read()
 		if len(got) != 2 {
 			t.Error(got)