diff options
Diffstat (limited to 'storage/xtradb/include/buf0dblwr.h')
| -rw-r--r-- | storage/xtradb/include/buf0dblwr.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/storage/xtradb/include/buf0dblwr.h b/storage/xtradb/include/buf0dblwr.h index a62a6400d97..5582778825c 100644 --- a/storage/xtradb/include/buf0dblwr.h +++ b/storage/xtradb/include/buf0dblwr.h @@ -1,6 +1,7 @@ /***************************************************************************** Copyright (c) 1995, 2014, Oracle and/or its affiliates. All Rights Reserved. +Copyright (c) 2017, MariaDB Corporation. All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -134,11 +135,13 @@ struct buf_dblwr_t{ ulint b_reserved;/*!< number of slots currently reserved for batch flush. */ os_event_t b_event;/*!< event where threads wait for a - batch flush to end. */ + batch flush to end; + os_event_set() and os_event_reset() + are protected by buf_dblwr_t::mutex */ ulint s_reserved;/*!< number of slots currently reserved for single page flushes. */ os_event_t s_event;/*!< event where threads wait for a - single page flush slot. */ + single page flush slot. Protected by mutex. */ bool* in_use; /*!< flag used to indicate if a slot is in use. Only used for single page flushes. */ |