added virtual destructor

diff --git a/lib/base/filepush.h b/lib/base/filepush.h
index 7e16fa028aa9a8f5d90fbbc39e46ab1c90b78675..9927322f9c9174f3a306d9770c99285f341c9fd5 100644 (file)
--- a/lib/base/filepush.h
+++ b/lib/base/filepush.h
@@ -9,6 +9,7 @@
 class iFilePushScatterGather
 {
 public:
+       virtual ~iFilePushScatterGather();
        virtual void getNextSourceSpan(size_t bytes_read, off_t &start, size_t &size)=0;
 };