buffer empty check method for default logger

Author: jeevatkm

default.go

@@ -138,6 +138,12 @@ func SetPattern(pattern string) error {
 	return std.SetPattern(pattern)
 }
 
+// IsBufferEmpty returns true if logger buffer is empty otherwise false.
+// This method can be used to ensure all the log entry is written successfully.
+func IsBufferEmpty() bool {
+	return std.IsBufferEmpty()
+}
+
 func init() {
 	cfg, _ := config.ParseString("log { }")
 	std, _ = New(cfg)