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authorBoris Kolpackov <boris@codesynthesis.com>2012-02-28 12:42:00 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2012-02-28 12:42:00 +0200
commiteaf07e23f93813fa2c2e6b4d67e69fc6f4c48673 (patch)
tree3b6a54db5d3019121b0bbd553322248ce45db4c2 /odb/lazy-pointer-traits.hxx
parent3012187847b2783c49153db3f5486b84074cb2b0 (diff)
Support for C++11 std::shared_ptr/weak_ptr as object pointers
This includes odb::lazy_shared_ptr and odb::lazy_weak_ptr implementations.
Diffstat (limited to 'odb/lazy-pointer-traits.hxx')
-rw-r--r--odb/lazy-pointer-traits.hxx47
1 files changed, 47 insertions, 0 deletions
diff --git a/odb/lazy-pointer-traits.hxx b/odb/lazy-pointer-traits.hxx
index cd2b535..910e1e4 100644
--- a/odb/lazy-pointer-traits.hxx
+++ b/odb/lazy-pointer-traits.hxx
@@ -9,6 +9,7 @@
#include <odb/pointer-traits.hxx>
#include <odb/lazy-ptr.hxx>
+#include <odb/details/config.hxx> // ODB_CXX11
namespace odb
{
@@ -61,6 +62,52 @@ namespace odb
return p.object_id<O> ();
}
};
+
+#ifdef ODB_CXX11
+ template <typename T>
+ class pointer_traits<lazy_shared_ptr<T> >
+ {
+ public:
+ static const pointer_kind kind = pk_shared;
+ static const bool lazy = true;
+
+ typedef T element_type;
+ typedef lazy_shared_ptr<element_type> pointer_type;
+ typedef std::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.object_id<O> ();
+ }
+ };
+
+ template <typename T>
+ class pointer_traits<lazy_weak_ptr<T> >
+ {
+ public:
+ static const pointer_kind kind = pk_weak;
+ static const bool lazy = true;
+
+ typedef T element_type;
+ typedef lazy_weak_ptr<element_type> pointer_type;
+ typedef lazy_shared_ptr<element_type> strong_pointer_type;
+ typedef std::weak_ptr<element_type> eager_pointer_type;
+
+ static strong_pointer_type
+ lock (const pointer_type& p)
+ {
+ return p.lock ();
+ }
+ };
+#endif // ODB_CXX11
}
#include <odb/post.hxx>