优化 runtime 的性能，加入 Long 函数到runtime

plugin/dapp/js/executor/js.go

@@ -12,10 +12,16 @@ import (
 )
 
 var driverName = ptypes.JsX
+var basevm *otto.Otto
 
 func init() {
 	ety := types.LoadExecutorType(driverName)
 	ety.InitFuncList(types.ListMethod(&js{}))
+	basevm = otto.New()
+	_, err := basevm.Run(callcode)
+	if err != nil {
+		panic(err)
+	}
 }
 
 //Init 插件初始化
@@ -78,7 +84,7 @@ func (u *js) callVM(prefix string, payload *jsproto.Call, tx *types.Transaction,
 	}
 	vm.Set("args", payload.Args)
 	callfunc := "callcode(context, f, args, loglist)"
-	jsvalue, err := vm.Run(callcode + string(code) + "\n" + callfunc)
+	jsvalue, err := vm.Run(string(code) + "\n" + callfunc)
 	if err != nil {
 		return nil, err
 	}
@@ -195,7 +201,7 @@ func (u *js) createVM(name string, tx *types.Transaction, index int) (*otto.Otto
 	if err != nil {
 		return nil, err
 	}
-	vm := otto.New()
+	vm := basevm.Copy()
 	vm.Set("context", string(data))
 	u.getstatedbFunc(vm, name)
 	u.getlocaldbFunc(vm, name)

plugin/dapp/js/executor/jsvm_test.go

@@ -69,7 +69,7 @@ Query.prototype.hello = function(args) {
 }
 `
 
-func initExec(ldb db.DB, kvdb db.KVDB, t *testing.T) *js {
+func initExec(ldb db.DB, kvdb db.KVDB, t assert.TestingT) *js {
 	e := newjs().(*js)
 	e.SetEnv(1, time.Now().Unix(), 1)
 	e.SetLocalDB(kvdb)
@@ -190,6 +190,20 @@ func TestBigInt(t *testing.T) {
 	assert.Equal(t, `{"balance":"9223372036854775807","balance1":"-9223372036854775808","balance2":9007199254740990,"balance3":-9007199254740990}`, string(kvs[0].Value))
 }
 
+func BenchmarkBigInt(b *testing.B) {
+	dir, ldb, kvdb := util.CreateTestDB()
+	defer util.CloseTestDB(dir, ldb)
+	e := initExec(ldb, kvdb, b)
+	//test call error(invalid json input)
+	s := fmt.Sprintf(`{"balance":%d,"balance1":%d,"balance2":%d,"balance3":%d}`, math.MaxInt64, math.MinInt64, 9007199254740990, -9007199254740990)
+	call, tx := callCodeTx("test", "hello", s)
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		_, err := e.callVM("exec", call, tx, 0, nil)
+		assert.Nil(b, err)
+	}
+}
+
 func TestRewriteJSON(t *testing.T) {
 	s := fmt.Sprintf(`{"balance":%d,"balance1":%d,"balance2":%d,"balance3":%d}`, math.MaxInt64, math.MinInt64, 9007199254740990, -9007199254740990)
 	quota := fmt.Sprintf(`{"balance":"%d","balance1":"%d","balance2":%d,"balance3":%d}`, math.MaxInt64, math.MinInt64, 9007199254740990, -9007199254740990)