diff options
Diffstat (limited to 'storage/innobase/include/buf0buf.h')
| -rw-r--r-- | storage/innobase/include/buf0buf.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/storage/innobase/include/buf0buf.h b/storage/innobase/include/buf0buf.h index 16bfaac2efc..ebed2bb62a6 100644 --- a/storage/innobase/include/buf0buf.h +++ b/storage/innobase/include/buf0buf.h @@ -1269,7 +1269,7 @@ page_hash lock is acquired in the specified lock mode. Otherwise, mode value is ignored. It is up to the caller to release the lock. If the block is found and the lock is NULL then the page_hash lock is released by this function. -@return block, NULL if not found */ +@return block, NULL if not found, or watch sentinel (if watch is true) */ UNIV_INLINE buf_page_t* buf_page_hash_get_locked( @@ -1285,9 +1285,11 @@ buf_page_hash_get_locked( found. NULL otherwise. If NULL is passed then the hash_lock is released by this function */ - ulint lock_mode); /*!< in: RW_LOCK_EX or + ulint lock_mode, /*!< in: RW_LOCK_EX or RW_LOCK_SHARED. Ignored if lock == NULL */ + bool watch = false); /*!< in: if true, return watch + sentinel also. */ /******************************************************************//** Returns the control block of a file page, NULL if not found. If the block is found and lock is not NULL then the appropriate @@ -1327,6 +1329,8 @@ buf_page_hash_get_low() function. buf_page_hash_get_locked(b, s, o, l, RW_LOCK_EX) #define buf_page_hash_get(b, s, o) \ buf_page_hash_get_locked(b, s, o, NULL, 0) +#define buf_page_get_also_watch(b, s, o) \ + buf_page_hash_get_locked(b, s, o, NULL, 0, true) #define buf_block_hash_get_s_locked(b, s, o, l) \ buf_block_hash_get_locked(b, s, o, l, RW_LOCK_SHARED) |