From 2636e266dc7a048e52b40b668c460c2793e897c4 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 18 Aug 2010 20:02:11 +0200
Subject: Move shared_ptr to the details namespace

---
 odb/details/shared-ptr/base.hxx | 108 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 odb/details/shared-ptr/base.hxx

(limited to 'odb/details/shared-ptr/base.hxx')

diff --git a/odb/details/shared-ptr/base.hxx b/odb/details/shared-ptr/base.hxx
new file mode 100644
index 0000000..4fbbc0b
--- /dev/null
+++ b/odb/details/shared-ptr/base.hxx
@@ -0,0 +1,108 @@
+// file      : odb/details/shared-ptr/base.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_DETAILS_SHARED_PTR_BASE_HXX
+#define ODB_DETAILS_SHARED_PTR_BASE_HXX
+
+#include <new>
+#include <cstddef>   // std::size_t
+
+#include <odb/exception.hxx>
+
+namespace odb
+{
+  namespace details
+  {
+    struct share
+    {
+      explicit
+      share (char id);
+
+      bool
+      operator== (share) const;
+
+    private:
+      char id_;
+    };
+
+    extern share shared;
+    extern share exclusive;
+  }
+}
+
+void*
+operator new (std::size_t, odb::details::share) throw (std::bad_alloc);
+
+void
+operator delete (void*, odb::details::share) throw ();
+
+namespace odb
+{
+  namespace details
+  {
+    struct not_shared: exception
+    {
+      virtual const char*
+      what () const throw ();
+    };
+
+    struct shared_base
+    {
+      shared_base ();
+      shared_base (const shared_base&);
+      shared_base&
+      operator= (const shared_base&);
+
+      void
+      _inc_ref ();
+
+      bool
+      _dec_ref ();
+
+      std::size_t
+      _ref_count () const;
+
+      void*
+      operator new (std::size_t, share) throw (std::bad_alloc);
+
+      void
+      operator delete (void*, share) throw ();
+
+      void
+      operator delete (void*) throw ();
+
+      struct refcount_callback
+      {
+        void* arg;
+        void (*zero_counter) (void*);
+      };
+
+    private:
+      bool
+      _dec_ref_callback ();
+
+    protected:
+      std::size_t counter_;
+      refcount_callback* callback_;
+    };
+
+    template <typename X>
+    inline X*
+    inc_ref (X*);
+
+    template <typename X>
+    inline void
+    dec_ref (X*);
+
+    template <typename X>
+    inline std::size_t
+    ref_count (const X*);
+  }
+}
+
+#include <odb/details/shared-ptr/base.ixx>
+#include <odb/details/shared-ptr/base.txx>
+
+#endif // ODB_DETAILS_SHARED_PTR_BASE_HXX
-- 
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