lib: Add some virtual dtors

Classes where we call delete (implicitly or explicitly) with a virtual
inheritance structure need to declare dtors as virtual.
This reduces compiler warnings with clang. There are no known bugs (yet)
due to this.

1 files changed, 5 insertions, 0 deletions

diff --git a/host/lib/include/uhdlib/transport/io_service.hpp b/host/lib/include/uhdlib/transport/io_service.hpp
index 0cc2f86e3..c97ae49ea 100644
--- a/host/lib/include/uhdlib/transport/io_service.hpp
+++ b/host/lib/include/uhdlib/transport/io_service.hpp
@@ -104,6 +104,8 @@ class recv_io_if
 public:
     using sptr = std::shared_ptr<recv_io_if>;
 
+    virtual ~recv_io_if() = default;
+
     /*!
      * Callback for producing a flow control response (or any other response
      * needed when a received frame_buff is released via
@@ -188,6 +190,8 @@ class send_io_if
 public:
     using sptr = std::shared_ptr<send_io_if>;
 
+    virtual ~send_io_if() = default;
+
     /*!
      * Callback for sending the packet. Callback should call release_send_buff()
      * and update any internal state needed. For example, flow control state
@@ -366,6 +370,7 @@ public:
     io_service()                  = default;
     io_service(const io_service&) = delete;
     io_service& operator=(const io_service&) = delete;
+    virtual ~io_service()                    = default;
 };
 
 }} // namespace uhd::transport