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Correct the comment of row_vers_impl_x_locked()

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Marko Mäkelä 2017-12-11 12:37:19 +02:00
parent bdeb27a000
commit 1e6ac94451
2 changed files with 35 additions and 34 deletions
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20
storage/innobase/include/row0vers.h
View file

@ -1,6 +1,7 @@
/*****************************************************************************
Copyright (c) 1997, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2017, MariaDB Corporation.
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
@ -38,19 +39,18 @@ Created 2/6/1997 Heikki Tuuri
// Forward declaration
class ReadView;
/*****************************************************************//**
Finds out if an active transaction has inserted or modified a secondary
/** Determine if an active transaction has inserted or modified a secondary
index record.
@return 0 if committed, else the active transaction id;
NOTE that this function can return false positives but never false
negatives. The caller must confirm all positive results by calling
trx_is_active() while holding lock_sys->mutex. */
@param[in] rec secondary index record
@param[in] index secondary index
@param[in] offsets rec_get_offsets(rec, index)
@return the active transaction; trx_release_reference() must be invoked
@retval NULL if the record was committed */
trx_t*
row_vers_impl_x_locked(
/*===================*/
const rec_t* rec, /*!< in: record in a secondary index */
dict_index_t* index, /*!< in: the secondary index */
const ulint* offsets);/*!< in: rec_get_offsets(rec, index) */
const rec_t* rec,
dict_index_t* index,
const ulint* offsets);
/*****************************************************************//**
Finds out if we must preserve a delete marked earlier version of a clustered

49
storage/innobase/row/row0vers.cc
View file

@ -1,7 +1,7 @@
/*****************************************************************************
Copyright (c) 1997, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2017, MariaDB Corporation
Copyright (c) 2017, MariaDB Corporation.
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
@ -63,23 +63,25 @@ row_vers_non_vc_match(
const dtuple_t* ientry,
mem_heap_t* heap,
ulint* n_non_v_col);
/*****************************************************************//**
Finds out if an active transaction has inserted or modified a secondary
/** Determine if an active transaction has inserted or modified a secondary
index record.
@return 0 if committed, else the active transaction id;
NOTE that this function can return false positives but never false
negatives. The caller must confirm all positive results by calling
trx_is_active() while holding lock_sys->mutex. */
@param[in] clust_rec clustered index record
@param[in] clust_index clustered index
@param[in] rec secondary index record
@param[in] index secondary index
@param[in] offsets rec_get_offsets(rec, index)
@param[in,out] mtr mini-transaction
@return the active transaction; trx_release_reference() must be invoked
@retval NULL if the record was committed */
UNIV_INLINE
trx_t*
row_vers_impl_x_locked_low(
/*=======================*/
const rec_t* clust_rec, /*!< in: clustered index record */
dict_index_t* clust_index, /*!< in: the clustered index */
const rec_t* rec, /*!< in: secondary index record */
dict_index_t* index, /*!< in: the secondary index */
const ulint* offsets, /*!< in: rec_get_offsets(rec, index) */
mtr_t* mtr) /*!< in/out: mini-transaction */
const rec_t* clust_rec,
dict_index_t* clust_index,
const rec_t* rec,
dict_index_t* index,
const ulint* offsets,
mtr_t* mtr)
{
trx_id_t trx_id;
ibool corrupt;
@ -325,19 +327,18 @@ result_check:
DBUG_RETURN(trx);
}
/*****************************************************************//**
Finds out if an active transaction has inserted or modified a secondary
/** Determine if an active transaction has inserted or modified a secondary
index record.
@return 0 if committed, else the active transaction id;
NOTE that this function can return false positives but never false
negatives. The caller must confirm all positive results by calling
trx_is_active() while holding lock_sys->mutex. */
@param[in] rec secondary index record
@param[in] index secondary index
@param[in] offsets rec_get_offsets(rec, index)
@return the active transaction; trx_release_reference() must be invoked
@retval NULL if the record was committed */
trx_t*
row_vers_impl_x_locked(
/*===================*/
const rec_t* rec, /*!< in: record in a secondary index */
dict_index_t* index, /*!< in: the secondary index */
const ulint* offsets)/*!< in: rec_get_offsets(rec, index) */
const rec_t* rec,
dict_index_t* index,
const ulint* offsets)
{
mtr_t mtr;
trx_t* trx;