diff options
Diffstat (limited to 'innobase/include/sync0rw.h')
| -rw-r--r-- | innobase/include/sync0rw.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/innobase/include/sync0rw.h b/innobase/include/sync0rw.h index 4cd26ba1921..55eaf94bae4 100644 --- a/innobase/include/sync0rw.h +++ b/innobase/include/sync0rw.h @@ -418,6 +418,17 @@ field. Then no new readers are allowed in. */ struct rw_lock_struct { os_event_t event; /* Used by sync0arr.c for thread queueing */ + +#ifdef __WIN__ + os_event_t wait_ex_event; /* This windows specific event is + used by the thread which has set the + lock state to RW_LOCK_WAIT_EX. The + rw_lock design guarantees that this + thread will be the next one to proceed + once the current the event gets + signalled. See LEMMA 2 in sync0sync.c */ +#endif + ulint reader_count; /* Number of readers who have locked this lock in the shared mode */ ulint writer; /* This field is set to RW_LOCK_EX if there |