1 files changed, 31 insertions, 0 deletions
diff --git a/sql/sql_class.cc b/sql/sql_class.cc
index 266064f9f08..bf5af7141c0 100644
--- a/sql/sql_class.cc
+++ b/sql/sql_class.cc
@@ -284,6 +284,37 @@ void **thd_ha_data(const THD *thd, const struct handlerton *hton)
   return (void **) &thd->ha_data[hton->slot].ha_ptr;
 }
 
+
+/**
+  Provide a handler data getter to simplify coding
+*/
+extern "C"
+void *thd_get_ha_data(const THD *thd, const struct handlerton *hton)
+{
+  return *thd_ha_data(thd, hton);
+}
+
+
+/**
+  Provide a handler data setter to simplify coding
+  @see thd_set_ha_data() definition in plugin.h
+*/
+extern "C"
+void thd_set_ha_data(THD *thd, const struct handlerton *hton,
+                     const void *ha_data)
+{
+  plugin_ref *lock= &thd->ha_data[hton->slot].lock;
+  if (ha_data && !*lock)
+    *lock= ha_lock_engine(NULL, (handlerton*) hton);
+  else if (!ha_data && *lock)
+  {
+    plugin_unlock(NULL, *lock);
+    *lock= NULL;
+  }
+  *thd_ha_data(thd, hton)= (void*) ha_data;
+}
+
+
 extern "C"
 long long thd_test_options(const THD *thd, long long test_options)
 {