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