From be5909a7fc240c007bb0128353d493af947a8749 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 22 Mar 2011 16:22:06 +0200
Subject: Add object and container statement caches

---
 odb/sqlite/object-statements.ixx | 54 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 odb/sqlite/object-statements.ixx

(limited to 'odb/sqlite/object-statements.ixx')

diff --git a/odb/sqlite/object-statements.ixx b/odb/sqlite/object-statements.ixx
new file mode 100644
index 0000000..e1ae3ef
--- /dev/null
+++ b/odb/sqlite/object-statements.ixx
@@ -0,0 +1,54 @@
+// file      : odb/sqlite/object-statements.ixx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+namespace odb
+{
+  namespace sqlite
+  {
+    //
+    // auto_lock
+    //
+    template <typename T>
+    inline object_statements<T>::auto_lock::
+    auto_lock (object_statements& s)
+        : s_ (s)
+    {
+      if (!s_.locked ())
+      {
+        s_.lock ();
+        locked_ = true;
+      }
+      else
+        locked_ = false;
+    }
+
+    template <typename T>
+    inline object_statements<T>::auto_lock::
+    ~auto_lock ()
+    {
+      if (locked_)
+      {
+        s_.unlock ();
+        s_.clear_delayed ();
+      }
+    }
+
+    template <typename T>
+    inline bool object_statements<T>::auto_lock::
+    locked () const
+    {
+      return locked_;
+    }
+
+    template <typename T>
+    inline void object_statements<T>::auto_lock::
+    unlock ()
+    {
+      assert (locked_);
+      s_.unlock ();
+      locked_ = false;
+    }
+  }
+}
-- 
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