plugin_hton helper

8 files changed, 34 insertions, 30 deletions

diff --git a/sql/handler.cc b/sql/handler.cc
index 7a6edc967ba..069e1369df3 100644
--- a/sql/handler.cc
+++ b/sql/handler.cc
@@ -124,7 +124,7 @@ handlerton *ha_default_handlerton(THD *thd)
 {
   plugin_ref plugin= ha_default_plugin(thd);
   DBUG_ASSERT(plugin);
-  handlerton *hton= plugin_data(plugin, handlerton*);
+  handlerton *hton= plugin_hton(plugin);
   DBUG_ASSERT(hton);
   return hton;
 }
@@ -155,7 +155,7 @@ redo:
 
   if ((plugin= my_plugin_lock_by_name(thd, name, MYSQL_STORAGE_ENGINE_PLUGIN)))
   {
-    handlerton *hton= plugin_data(plugin, handlerton *);
+    handlerton *hton= plugin_hton(plugin);
     if (hton && !(hton->flags & HTON_NOT_USER_SELECTABLE))
       return plugin;
       
@@ -203,7 +203,7 @@ handlerton *ha_resolve_by_legacy_type(THD *thd, enum legacy_db_type db_type)
   default:
     if (db_type > DB_TYPE_UNKNOWN && db_type < DB_TYPE_DEFAULT &&
         (plugin= ha_lock_engine(thd, installed_htons[db_type])))
-      return plugin_data(plugin, handlerton*);
+      return plugin_hton(plugin);
     /* fall through */
   case DB_TYPE_UNKNOWN:
     return NULL;
@@ -662,7 +662,7 @@ int ha_end()
 static my_bool dropdb_handlerton(THD *unused1, plugin_ref plugin,
                                  void *path)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->drop_database)
     hton->drop_database(hton, (char *)path);
   return FALSE;
@@ -678,7 +678,7 @@ void ha_drop_database(char* path)
 static my_bool checkpoint_state_handlerton(THD *unused1, plugin_ref plugin,
                                            void *disable)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->checkpoint_state)
     hton->checkpoint_state(hton, (int) *(bool*) disable);
   return FALSE;
@@ -700,7 +700,7 @@ static my_bool commit_checkpoint_request_handlerton(THD *unused1, plugin_ref plu
                                            void *data)
 {
   st_commit_checkpoint_request *st= (st_commit_checkpoint_request *)data;
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->commit_checkpoint_request)
   {
     void *cookie= st->cookie;
@@ -732,7 +732,7 @@ ha_commit_checkpoint_request(void *cookie, void (*pre_hook)(void *))
 static my_bool closecon_handlerton(THD *thd, plugin_ref plugin,
                                    void *unused)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   /*
     there's no need to rollback here as all transactions must
     be rolled back already
@@ -759,7 +759,7 @@ void ha_close_connection(THD* thd)
 static my_bool kill_handlerton(THD *thd, plugin_ref plugin,
                                void *level)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
 
   if (hton->state == SHOW_OPTION_YES && hton->kill_query &&
       thd_get_ha_data(thd, hton))
@@ -1604,7 +1604,7 @@ struct xahton_st {
 static my_bool xacommit_handlerton(THD *unused1, plugin_ref plugin,
                                    void *arg)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->recover)
   {
     hton->commit_by_xid(hton, ((struct xahton_st *)arg)->xid);
@@ -1616,7 +1616,7 @@ static my_bool xacommit_handlerton(THD *unused1, plugin_ref plugin,
 static my_bool xarollback_handlerton(THD *unused1, plugin_ref plugin,
                                      void *arg)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->recover)
   {
     hton->rollback_by_xid(hton, ((struct xahton_st *)arg)->xid);
@@ -1722,7 +1722,7 @@ struct xarecover_st
 static my_bool xarecover_handlerton(THD *unused, plugin_ref plugin,
                                     void *arg)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   struct xarecover_st *info= (struct xarecover_st *) arg;
   int got;
 
@@ -2051,7 +2051,7 @@ int ha_release_savepoint(THD *thd, SAVEPOINT *sv)
 static my_bool snapshot_handlerton(THD *thd, plugin_ref plugin,
                                    void *arg)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES &&
       hton->start_consistent_snapshot)
   {
@@ -2091,7 +2091,7 @@ int ha_start_consistent_snapshot(THD *thd)
 static my_bool flush_handlerton(THD *thd, plugin_ref plugin,
                                 void *arg)
 {
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->flush_logs && 
       hton->flush_logs(hton))
     return TRUE;
@@ -4327,7 +4327,7 @@ static my_bool discover_handlerton(THD *thd, plugin_ref plugin,
                                    void *arg)
 {
   TABLE_SHARE *share= (TABLE_SHARE *)arg;
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->discover_table)
   {
     share->db_plugin= plugin;
@@ -4390,7 +4390,7 @@ static my_bool discover_existence(THD *thd, plugin_ref plugin,
                                   void *arg)
 {
   st_discover_existence_args *args= (st_discover_existence_args*)arg;
-  handlerton *ht= plugin_data(plugin, handlerton *);
+  handlerton *ht= plugin_hton(plugin);
   if (ht->state != SHOW_OPTION_YES || !ht->discover_table_existence)
     return FALSE;
 
@@ -4614,7 +4614,7 @@ static my_bool discover_names(THD *thd, plugin_ref plugin,
                               void *arg)
 {
   st_discover_names_args *args= (st_discover_names_args *)arg;
-  handlerton *ht= plugin_data(plugin, handlerton *);
+  handlerton *ht= plugin_hton(plugin);
 
   if (ht->state == SHOW_OPTION_YES && ht->discover_table_names)
   {
@@ -4691,7 +4691,7 @@ struct binlog_func_st
 static my_bool binlog_func_list(THD *thd, plugin_ref plugin, void *arg)
 {
   hton_list_st *hton_list= (hton_list_st *)arg;
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->binlog_func)
   {
     uint sz= hton_list->sz;
@@ -4781,7 +4781,7 @@ static my_bool binlog_log_query_handlerton(THD *thd,
                                            plugin_ref plugin,
                                            void *args)
 {
-  return binlog_log_query_handlerton2(thd, plugin_data(plugin, handlerton *), args);
+  return binlog_log_query_handlerton2(thd, plugin_hton(plugin), args);
 }
 
 void ha_binlog_log_query(THD *thd, handlerton *hton,
@@ -5012,7 +5012,7 @@ static my_bool exts_handlerton(THD *unused, plugin_ref plugin,
                                void *arg)
 {
   List<char> *found_exts= (List<char> *) arg;
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   List_iterator_fast<char> it(*found_exts);
   const char **ext, *old_ext;
 
@@ -5081,7 +5081,7 @@ static my_bool showstat_handlerton(THD *thd, plugin_ref plugin,
                                    void *arg)
 {
   enum ha_stat_type stat= *(enum ha_stat_type *) arg;
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->state == SHOW_OPTION_YES && hton->show_status &&
       hton->show_status(hton, thd, stat_print, stat))
     return TRUE;
diff --git a/sql/handler.h b/sql/handler.h
index bfc83a52582..5232900a293 100644
--- a/sql/handler.h
+++ b/sql/handler.h
@@ -1210,6 +1210,11 @@ static inline LEX_STRING *hton_name(const handlerton *hton)
   return &(hton2plugin[hton->slot]->name);
 }
 
+static inline handlerton *plugin_hton(plugin_ref plugin)
+{
+  return plugin_data(plugin, handlerton *);
+}
+
 static inline sys_var *find_hton_sysvar(handlerton *hton, st_mysql_sys_var *var)
 {
   return find_plugin_sysvar(hton2plugin[hton->slot], var);
diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index d5af1634a8a..2302a67b838 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -4582,7 +4582,7 @@ a file name for --log-bin-index option", opt_binlog_index_name);
   plugin_ref plugin;
   handlerton *hton;
   if ((plugin= ha_resolve_by_name(0, &name)))
-    hton= plugin_data(plugin, handlerton*);
+    hton= plugin_hton(plugin);
   else
   {
     sql_print_error("Unknown/unsupported storage engine: %s",
diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index b7b2574c31d..e0b3de07305 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -5395,7 +5395,7 @@ static my_bool iter_schema_engines(THD *thd, plugin_ref plugin,
                                    void *ptable)
 {
   TABLE *table= (TABLE *) ptable;
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   const char *wild= thd->lex->wild ? thd->lex->wild->ptr() : NullS;
   CHARSET_INFO *scs= system_charset_info;
   handlerton *default_type= ha_default_handlerton(thd);
@@ -8052,7 +8052,7 @@ static my_bool run_hton_fill_schema_table(THD *thd, plugin_ref plugin,
 {
   struct run_hton_fill_schema_table_args *args=
     (run_hton_fill_schema_table_args *) arg;
-  handlerton *hton= plugin_data(plugin, handlerton *);
+  handlerton *hton= plugin_hton(plugin);
   if (hton->fill_is_table && hton->state == SHOW_OPTION_YES)
       hton->fill_is_table(hton, thd, args->tables, args->cond,
             get_schema_table_idx(args->tables->schema_table));
diff --git a/sql/sql_table.cc b/sql/sql_table.cc
index b16264d1145..67bc7d0cb12 100644
--- a/sql/sql_table.cc
+++ b/sql/sql_table.cc
@@ -950,7 +950,7 @@ static int execute_ddl_log_action(THD *thd, DDL_LOG_ENTRY *ddl_log_entry)
       my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), ddl_log_entry->handler_name);
       goto error;
     }
-    hton= plugin_data(plugin, handlerton*);
+    hton= plugin_hton(plugin);
     file= get_new_handler((TABLE_SHARE*)0, &mem_root, hton);
     if (!file)
     {
diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index 2634470d916..8e22950aa72 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -5376,7 +5376,7 @@ storage_engines:
             plugin_ref plugin= ha_resolve_by_name(YYTHD, &$1);
 
             if (plugin)
-              $$= plugin_data(plugin, handlerton*);
+              $$= plugin_hton(plugin);
             else
             {
               if (YYTHD->variables.sql_mode & MODE_NO_ENGINE_SUBSTITUTION)
@@ -5398,7 +5398,7 @@ known_storage_engines:
           {
             plugin_ref plugin;
             if ((plugin= ha_resolve_by_name(YYTHD, &$1)))
-              $$= plugin_data(plugin, handlerton*);
+              $$= plugin_hton(plugin);
             else
             {
               my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), $1.str);
diff --git a/sql/table.cc b/sql/table.cc
index 08903db93e1..01b7ae3445e 100644
--- a/sql/table.cc
+++ b/sql/table.cc
@@ -1333,7 +1333,7 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
 
  /* Allocate handler */
   if (!(handler_file= get_new_handler(share, thd->mem_root,
-                                      plugin_data(se_plugin, handlerton *))))
+                                      plugin_hton(se_plugin))))
     goto err;
 
   record= share->default_values-1;              /* Fieldstart = 1 */
@@ -2081,7 +2081,7 @@ int TABLE_SHARE::init_from_sql_statement_string(THD *thd, bool write,
     goto ret;
   }
 
-  thd->lex->create_info.db_type= plugin_data(db_plugin, handlerton *);
+  thd->lex->create_info.db_type= plugin_hton(db_plugin);
 
   if (tabledef_version.str)
     thd->lex->create_info.tabledef_version= tabledef_version;
diff --git a/sql/table.h b/sql/table.h
index 78d1cd01db9..e376ee2ad2f 100644
--- a/sql/table.h
+++ b/sql/table.h
@@ -672,8 +672,7 @@ struct TABLE_SHARE
   inline handlerton *db_type() const	/* table_type for handler */
   { 
     return is_view   ? view_pseudo_hton :
-           db_plugin ? plugin_data(db_plugin, handlerton*)
-                     : NULL;
+           db_plugin ? plugin_hton(db_plugin) : NULL;
   }
   enum row_type row_type;		/* How rows are stored */
   enum tmp_table_type tmp_table;