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/*****************************************************************************
Copyright (c) 2007, 2009, 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
Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
*****************************************************************************/
/**************************************************//**
@file include/lock0priv.ic
Lock module internal inline methods.
Created July 16, 2007 Vasil Dimov
*******************************************************/
/* This file contains only methods which are used in
lock/lock0* files, other than lock/lock0lock.cc.
I.e. lock/lock0lock.cc contains more internal inline
methods but they are used only in that file. */
#ifndef LOCK_MODULE_IMPLEMENTATION
#error Do not include lock0priv.ic outside of the lock/ module
#endif
/*********************************************************************//**
Gets the type of a lock.
@return LOCK_TABLE or LOCK_REC */
UNIV_INLINE
ulint
lock_get_type_low(
/*==============*/
const lock_t* lock) /*!< in: lock */
{
ut_ad(lock);
return(lock->type_mode & LOCK_TYPE_MASK);
}
/*********************************************************************//**
Checks if some transaction has an implicit x-lock on a record in a clustered
index.
@return transaction id of the transaction which has the x-lock, or 0 */
UNIV_INLINE
trx_id_t
lock_clust_rec_some_has_impl(
/*=========================*/
const rec_t* rec, /*!< in: user record */
const dict_index_t* index, /*!< in: clustered index */
const ulint* offsets)/*!< in: rec_get_offsets(rec, index) */
{
ut_ad(dict_index_is_clust(index));
ut_ad(page_rec_is_user_rec(rec));
return(row_get_rec_trx_id(rec, index, offsets));
}
/* vim: set filetype=c: */
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