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Diffstat (limited to 'storage/innobase/include/log0log.ic')
| -rw-r--r-- | storage/innobase/include/log0log.ic | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/storage/innobase/include/log0log.ic b/storage/innobase/include/log0log.ic index 67792395ac9..7c79eb96ca9 100644 --- a/storage/innobase/include/log0log.ic +++ b/storage/innobase/include/log0log.ic @@ -434,6 +434,26 @@ log_get_flush_lsn(void) return(lsn); } +/************************************************************//** +Gets the current lsn with a trylock +@return current lsn or 0 if false*/ +UNIV_INLINE +lsn_t +log_get_lsn_nowait(void) +/*=============*/ +{ + lsn_t lsn; + + if (mutex_enter_nowait(&(log_sys->mutex))) + return 0; + + lsn = log_sys->lsn; + + mutex_exit(&(log_sys->mutex)); + + return(lsn); +} + /**************************************************************** Gets the log group capacity. It is OK to read the value without holding log_sys->mutex because it is constant. |