add communicator api

communicator/major_function.go

@@ -0,0 +1,27 @@
+package communicator
+
+import "fmt"
+
+// SetConfig set config by config key(name) and value
+func SetConfig(key string, val interface{}) (err error) {
+	configMapLock.Lock()
+	defer configMapLock.Unlock()
+
+	config, ok := configMap[key]
+	if !ok {
+		err = fmt.Errorf("no config %s exist", key)
+		return
+	}
+
+	err = config.setVal(val)
+	return
+}
+
+// GetConfig get config value by config key(name)
+func GetConfig(key string) (val interface{}) {
+	configMapLock.RLock()
+	defer configMapLock.RUnlock()
+
+	config := configMap[key]
+	return config.getVal()
+}