1 files changed, 58 insertions, 0 deletions
diff --git a/bpkg/pointer-traits.hxx b/bpkg/pointer-traits.hxx
new file mode 100644
index 0000000..a63b289
--- /dev/null
+++ b/bpkg/pointer-traits.hxx
@@ -0,0 +1,58 @@
+// file      : bpkg/pointer-traits.hxx -*- C++ -*-
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef BPKG_POINTER_TRAITS_HXX
+#define BPKG_POINTER_TRAITS_HXX
+
+#include <bpkg/types.hxx>
+
+#include <odb/pointer-traits.hxx>
+
+namespace odb
+{
+  template <typename T>
+  class pointer_traits<bpkg::lazy_shared_ptr<T>>
+  {
+  public:
+    static const pointer_kind kind = pk_shared;
+    static const bool lazy = true;
+
+    typedef T element_type;
+    typedef bpkg::lazy_shared_ptr<element_type> pointer_type;
+    typedef bpkg::shared_ptr<element_type> eager_pointer_type;
+
+    static bool
+    null_ptr (const pointer_type& p)
+    {
+      return !p;
+    }
+
+    template <class O = T>
+    static typename object_traits<O>::id_type
+    object_id (const pointer_type& p)
+    {
+      return p.template object_id<O> ();
+    }
+  };
+
+  template <typename T>
+  class pointer_traits<bpkg::lazy_weak_ptr<T>>
+  {
+  public:
+    static const pointer_kind kind = pk_weak;
+    static const bool lazy = true;
+
+    typedef T element_type;
+    typedef bpkg::lazy_weak_ptr<element_type> pointer_type;
+    typedef bpkg::lazy_shared_ptr<element_type> strong_pointer_type;
+    typedef bpkg::weak_ptr<element_type> eager_pointer_type;
+
+    static strong_pointer_type
+    lock (const pointer_type& p)
+    {
+      return p.lock ();
+    }
+  };
+}
+
+#endif // BPKG_POINTER_TRAITS_HXX