Add support for SQL statement tracing

1 files changed, 20 insertions, 0 deletions

diff --git a/odb/mysql/transaction-impl.cxx b/odb/mysql/transaction-impl.cxx
index 24c511f..7aa86a5 100644
--- a/odb/mysql/transaction-impl.cxx
+++ b/odb/mysql/transaction-impl.cxx
@@ -3,6 +3,8 @@
 // copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
 // license   : GNU GPL v2; see accompanying LICENSE file
 
+#include <odb/tracer.hxx>
+
 #include <odb/mysql/mysql.hxx>
 #include <odb/mysql/database.hxx>
 #include <odb/mysql/connection.hxx>
@@ -41,6 +43,12 @@ namespace odb
         odb::transaction_impl::connection_ = connection_.get ();
       }
 
+      {
+        odb::tracer* t;
+        if ((t = connection_->tracer ()) || (t = database_.tracer ()))
+          t->execute (*connection_, "BEGIN");
+      }
+
       if (mysql_real_query (connection_->handle (), "begin", 5) != 0)
         translate_error (*connection_);
     }
@@ -50,6 +58,12 @@ namespace odb
     {
       connection_->clear ();
 
+      {
+        odb::tracer* t;
+        if ((t = connection_->tracer ()) || (t = database_.tracer ()))
+          t->execute (*connection_, "COMMIT");
+      }
+
       if (mysql_real_query (connection_->handle (), "commit", 6) != 0)
         translate_error (*connection_);
 
@@ -63,6 +77,12 @@ namespace odb
     {
       connection_->clear ();
 
+      {
+        odb::tracer* t;
+        if ((t = connection_->tracer ()) || (t = database_.tracer ()))
+          t->execute (*connection_, "ROLLBACK");
+      }
+
       if (mysql_real_query (connection_->handle (), "rollback", 8) != 0)
         translate_error (*connection_);