implement #4595, add logx.GetLevel()

core/logc/logs.go

@@ -108,6 +108,11 @@ func SetLevel(level uint32) {
 	logx.SetLevel(level)
 }
 
+// GetLevel gets the logging level.
+func GetLevel() uint32 {
+	return logx.GetLevel()
+}
+
 // SetUp sets up the logx.
 // If already set up, return nil.
 // We allow SetUp to be called multiple times, because, for example,

core/logc/logs_test.go

@@ -132,6 +132,8 @@ func TestMisc(t *testing.T) {
 	SetLevel(logx.DebugLevel)
 	assert.NoError(t, SetUp(LogConf{}))
 	assert.NoError(t, Close())
+	l := GetLevel()
+	assert.Equal(t, logx.DebugLevel, l)
 }
 
 func TestSlow(t *testing.T) {

core/logx/logs.go

@@ -268,6 +268,11 @@ func SetLevel(level uint32) {
 	atomic.StoreUint32(&logLevel, level)
 }
 
+// GetLevel returns the current log level.
+func GetLevel() uint32 {
+	return atomic.LoadUint32(&logLevel)
+}
+
 // SetWriter sets the logging writer. It can be used to customize the logging.
 func SetWriter(w Writer) {
 	if atomic.LoadUint32(&logLevel) != disableLevel {

core/logx/logs_test.go

@@ -558,6 +558,12 @@ func TestSetLevel(t *testing.T) {
 	assert.Equal(t, 0, w.builder.Len())
 }
 
+func TestGetLevel(t *testing.T) {
+	SetLevel(ErrorLevel)
+	l := GetLevel()
+	assert.Equal(t, ErrorLevel, l)
+}
+
 func TestSetLevelTwiceWithMode(t *testing.T) {
 	testModes := []string{
 		"console",