diff options
Diffstat (limited to 'storage/innobase/include/lock0lock.ic')
| -rw-r--r-- | storage/innobase/include/lock0lock.ic | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/storage/innobase/include/lock0lock.ic b/storage/innobase/include/lock0lock.ic index 736936954cb..ba2311c02ea 100644 --- a/storage/innobase/include/lock0lock.ic +++ b/storage/innobase/include/lock0lock.ic @@ -1,6 +1,6 @@ /***************************************************************************** -Copyright (c) 1996, 2009, Oracle and/or its affiliates. All Rights Reserved. +Copyright (c) 1996, 2015, Oracle and/or its affiliates. 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 @@ -23,7 +23,6 @@ The transaction lock system Created 5/7/1996 Heikki Tuuri *******************************************************/ -#include "sync0sync.h" #include "srv0srv.h" #include "dict0dict.h" #include "row0row.h" @@ -41,7 +40,7 @@ Created 5/7/1996 Heikki Tuuri /*********************************************************************//** Calculates the fold value of a page file address: used in inserting or searching for a lock in the hash table. -@return folded value */ +@return folded value */ UNIV_INLINE ulint lock_rec_fold( @@ -55,7 +54,7 @@ lock_rec_fold( /*********************************************************************//** Calculates the hash value of a page file address: used in inserting or searching for a lock in the hash table. -@return hashed value */ +@return hashed value */ UNIV_INLINE ulint lock_rec_hash( @@ -69,7 +68,7 @@ lock_rec_hash( /*********************************************************************//** Gets the heap_no of the smallest user record on a page. -@return heap_no of smallest user record, or PAGE_HEAP_NO_SUPREMUM */ +@return heap_no of smallest user record, or PAGE_HEAP_NO_SUPREMUM */ UNIV_INLINE ulint lock_get_min_heap_no( @@ -90,3 +89,43 @@ lock_get_min_heap_no( FALSE))); } } + +/*************************************************************//** +Moves the locks of a record to another record and resets the lock bits of +the donating record. */ +UNIV_INLINE +void +lock_rec_move( +/*==========*/ + const buf_block_t* receiver, /*!< in: buffer block containing + the receiving record */ + const buf_block_t* donator, /*!< in: buffer block containing + the donating record */ + ulint receiver_heap_no,/*!< in: heap_no of the record + which gets the locks; there + must be no lock requests + on it! */ + ulint donator_heap_no)/*!< in: heap_no of the record + which gives the locks */ +{ + lock_rec_move_low(lock_sys->rec_hash, receiver, donator, + receiver_heap_no, donator_heap_no); +} + +/*************************************************************//** +Get the lock hash table */ +UNIV_INLINE +hash_table_t* +lock_hash_get( +/*==========*/ + ulint mode) /*!< in: lock mode */ +{ + if (mode & LOCK_PREDICATE) { + return(lock_sys->prdt_hash); + } else if (mode & LOCK_PRDT_PAGE) { + return(lock_sys->prdt_page_hash); + } else { + return(lock_sys->rec_hash); + } +} + |