1 files changed, 47 insertions, 0 deletions
diff --git a/libodb/odb/prepared-query.cxx b/libodb/odb/prepared-query.cxx
new file mode 100644
index 0000000..70bcaa1
--- /dev/null
+++ b/libodb/odb/prepared-query.cxx
@@ -0,0 +1,47 @@
+// file      : odb/prepared-query.cxx
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#include <odb/connection.hxx>
+#include <odb/transaction.hxx>
+#include <odb/prepared-query.hxx>
+
+namespace odb
+{
+  prepared_query_impl::
+  ~prepared_query_impl ()
+  {
+    if (next_ != this)
+      list_remove ();
+  }
+
+  prepared_query_impl::
+  prepared_query_impl (connection& c)
+      : cached (false), conn (c), prev_ (0), next_ (this)
+  {
+    // Add to the list.
+    //
+    next_ = conn.prepared_queries_;
+    conn.prepared_queries_ = this;
+
+    if (next_ != 0)
+      next_->prev_ = this;
+  }
+
+  bool prepared_query_impl::
+  verify_connection (transaction& t)
+  {
+    return &t.connection () == &stmt->connection ();
+  }
+
+  void prepared_query_impl::
+  list_remove ()
+  {
+    (prev_ == 0 ? conn.prepared_queries_ : prev_->next_) = next_;
+
+    if (next_ != 0)
+      next_->prev_ = prev_;
+
+    prev_ = 0;
+    next_ = this;
+  }
+}