More unique_ptr, also cleanup MGF1 usage

1 files changed, 8 insertions, 2 deletions

diff --git a/src/lib/entropy/proc_walk/proc_walk.h b/src/lib/entropy/proc_walk/proc_walk.h
index 04c3b1bba..3d4c4e4da 100644
--- a/src/lib/entropy/proc_walk/proc_walk.h
+++ b/src/lib/entropy/proc_walk/proc_walk.h
@@ -13,6 +13,13 @@
 
 namespace Botan {
 
+class File_Descriptor_Source
+   {
+   public:
+      virtual int next_fd() = 0;
+      virtual ~File_Descriptor_Source() {}
+   };
+
 /**
 * File Tree Walking Entropy Source
 */
@@ -26,10 +33,9 @@ class ProcWalking_EntropySource : public EntropySource
       ProcWalking_EntropySource(const std::string& root_dir) :
          m_path(root_dir), m_dir(nullptr) {}
 
-      ~ProcWalking_EntropySource();
    private:
       const std::string m_path;
-      class File_Descriptor_Source* m_dir;
+      std::unique_ptr<File_Descriptor_Source> m_dir;
    };
 
 }