update

go.mod

@@ -20,6 +20,8 @@ require (
 	github.com/golang-collections/collections v0.0.0-20130729185459-604e922904d3
 	github.com/golang/protobuf v1.3.2
 	github.com/hashicorp/golang-lru v0.5.0
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/pkg/errors v0.8.0
 	github.com/prometheus/client_golang v1.1.0 // indirect
 	github.com/robertkrimen/otto v0.0.0-20180617131154-15f95af6e78d

plugin/consensus/dpos/types/util.go

@@ -11,7 +11,6 @@ import (
 	"os"
 	"path/filepath"
 	"sync"
-	"syscall"
 	"time"
 )
 
@@ -88,50 +87,12 @@ func Fingerprint(slice []byte) []byte {
 	return fingerprint
 }
 
-// Kill ...
-func Kill() error {
-	p, err := os.FindProcess(os.Getpid())
-	if err != nil {
-		return err
-	}
-	return p.Signal(syscall.SIGTERM)
-}
-
 // Exit ...
 func Exit(s string) {
 	fmt.Printf(s + "\n")
 	os.Exit(1)
 }
 
-// Parallel ...
-func Parallel(tasks ...func()) {
-	var wg sync.WaitGroup
-	wg.Add(len(tasks))
-	for _, task := range tasks {
-		go func(task func()) {
-			task()
-			wg.Done()
-		}(task)
-	}
-	wg.Wait()
-}
-
-// MinInt ...
-func MinInt(a, b int) int {
-	if a < b {
-		return a
-	}
-	return b
-}
-
-// MaxInt ...
-func MaxInt(a, b int) int {
-	if a > b {
-		return a
-	}
-	return b
-}
-
 // RandIntn ...
 func RandIntn(n int) int {
 	if n <= 0 {

plugin/consensus/dpos/types/util_test.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"os"
-	"os/signal"
 	"strings"
 	"sync"
 	"testing"
@@ -83,13 +82,6 @@ func TestFingerprint(t *testing.T) {
 	assert.True(t, bytes.Equal(finger, arr[0:6]))
 }
 
-func TestKill(t *testing.T) {
-	c := make(chan os.Signal)
-	signal.Notify(c)
-	go Kill()
-	s := <-c
-	assert.True(t, s.String() == "terminated")
-}
 
 var (
 	goIndex      = 0
@@ -116,17 +108,6 @@ func TestParallel(t *testing.T) {
 	f2 := test
 	f2()
 	assert.True(t, goSum == 2)
-	/*
-		goSumMutex.Lock()
-		goSum = 0
-		goSumMutex.Unlock()
-
-
-			Parallel(f1, f2)
-			goSumMutex.Lock()
-			assert.True(t, goSum == 2)
-			goSumMutex.Unlock()
-	*/
 }
 
 func TestRandInt63n(t *testing.T) {