1 files changed, 59 insertions, 0 deletions
diff --git a/libodb/odb/details/lock.hxx b/libodb/odb/details/lock.hxx
new file mode 100644
index 0000000..0c54f03
--- /dev/null
+++ b/libodb/odb/details/lock.hxx
@@ -0,0 +1,59 @@
+// file      : odb/details/lock.hxx
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_DETAILS_LOCK_HXX
+#define ODB_DETAILS_LOCK_HXX
+
+#include <odb/pre.hxx>
+
+#include <odb/details/mutex.hxx>
+
+#ifdef ODB_THREADS_CXX11
+#  include <mutex>
+namespace odb
+{
+  namespace details
+  {
+    using lock = std::unique_lock<mutex>;
+  }
+}
+#else
+namespace odb
+{
+  namespace details
+  {
+    class lock
+    {
+    public:
+      lock (mutex& m)
+          : mutex_ (&m)
+      {
+        mutex_->lock ();
+      }
+
+      ~lock ()
+      {
+        if (mutex_ != 0)
+          mutex_->unlock ();
+      }
+
+      void
+      unlock ()
+      {
+        if (mutex_ != 0)
+        {
+          mutex_->unlock ();
+          mutex_ = 0;
+        }
+      }
+
+    private:
+      mutex* mutex_;
+    };
+  }
+}
+#endif
+
+#include <odb/post.hxx>
+
+#endif // ODB_DETAILS_LOCK_HXX