add logging for jsre

ethereum/javascript_runtime.go

@@ -6,6 +6,7 @@ import (
 	"github.com/ethereum/eth-go/ethchain"
 	"github.com/ethereum/eth-go/ethpub"
 	"github.com/ethereum/eth-go/ethutil"
+	"github.com/ethereum/eth-go/ethlog"
 	"github.com/ethereum/go-ethereum/utils"
 	"github.com/obscuren/otto"
 	"io/ioutil"
@@ -14,6 +15,8 @@ import (
 	"path/filepath"
 )
 
+var jsrelogger = ethlog.NewLogger("JSRE")
+
 type JSRE struct {
 	ethereum *eth.Ethereum
 	vm       *otto.Otto
@@ -31,7 +34,7 @@ func (jsre *JSRE) LoadExtFile(path string) {
 	if err == nil {
 		jsre.vm.Run(result)
 	} else {
-		ethutil.Config.Log.Debugln("Could not load file:", path)
+		jsrelogger.Debugln("Could not load file:", path)
 	}
 }
 
@@ -65,6 +68,8 @@ func NewJSRE(ethereum *eth.Ethereum) *JSRE {
 
 	re.initStdFuncs()
 
+	jsrelogger.Infoln("started")
+
 	return re
 }
 
@@ -99,6 +104,7 @@ func (self *JSRE) Stop() {
 	close(self.blockChan)
 	close(self.quitChan)
 	close(self.changeChan)
+	jsrelogger.Infoln("stopped")
 }
 
 func (self *JSRE) mainLoop() {