diff options
Diffstat (limited to 'storage/innobase/include/mtr0mtr.h')
| -rw-r--r-- | storage/innobase/include/mtr0mtr.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/storage/innobase/include/mtr0mtr.h b/storage/innobase/include/mtr0mtr.h index ebe9ed78534..067e5a86b46 100644 --- a/storage/innobase/include/mtr0mtr.h +++ b/storage/innobase/include/mtr0mtr.h @@ -177,6 +177,10 @@ struct mtr_t { @param block buffer pool block to search for */ bool have_x_latch(const buf_block_t &block) const; + /** Check if we are holding a block latch in S or U mode + @param block buffer pool block to search for */ + bool have_u_or_x_latch(const buf_block_t &block) const; + /** Copy the tablespaces associated with the mini-transaction (needed for generating FILE_MODIFY records) @param[in] mtr mini-transaction that may modify @@ -336,6 +340,15 @@ public: @param rw_latch RW_S_LATCH, RW_SX_LATCH, RW_X_LATCH, RW_NO_LATCH */ void page_lock(buf_block_t *block, ulint rw_latch); + /** Register a page latch on a buffer-fixed block was buffer-fixed. + @param latch latch type */ + void u_lock_register(ulint savepoint) + { + mtr_memo_slot_t *slot= m_memo.at<mtr_memo_slot_t*>(savepoint); + ut_ad(slot->type == MTR_MEMO_BUF_FIX); + slot->type= MTR_MEMO_PAGE_SX_FIX; + } + /** Upgrade U locks on a block to X */ void page_lock_upgrade(const buf_block_t &block); /** Upgrade X lock to X */ |