/*****************************************************************************

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
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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this program; if not, write to the Free Software Foundation, Inc.,
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*****************************************************************************/

/**************************************************//**
@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: */