Add support for updating callback registration

1 files changed, 9 insertions, 0 deletions

diff --git a/odb/transaction.hxx b/odb/transaction.hxx
index 1f7b866..e035661 100644
--- a/odb/transaction.hxx
+++ b/odb/transaction.hxx
@@ -136,6 +136,12 @@ namespace odb
     void
     unregister (void* key);
 
+    // Update the data and state values for a callback. Note that just
+    // like unregister(), this is a potentially slow operation.
+    //
+    void
+    update (void* key, unsigned long long data, transaction** state = 0);
+
   public:
     transaction_impl&
     implementation ();
@@ -149,6 +155,9 @@ namespace odb
   protected:
     friend struct rollback_guard;
 
+    std::size_t
+    find (void* key);
+
     void
     call (unsigned short event);