diff options
Diffstat (limited to 'storage/innobase/include/row0row.ic')
| -rw-r--r-- | storage/innobase/include/row0row.ic | 162 |
1 files changed, 50 insertions, 112 deletions
diff --git a/storage/innobase/include/row0row.ic b/storage/innobase/include/row0row.ic index de417f3d971..05c007641af 100644 --- a/storage/innobase/include/row0row.ic +++ b/storage/innobase/include/row0row.ic @@ -1,7 +1,24 @@ -/****************************************************** -General row routines +/***************************************************************************** + +Copyright (c) 1996, 2009, Innobase Oy. 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., 59 Temple +Place, Suite 330, Boston, MA 02111-1307 USA -(c) 1996 Innobase Oy +*****************************************************************************/ + +/**************************************************//** +@file include/row0row.ic +General row routines Created 4/20/1996 Heikki Tuuri *******************************************************/ @@ -10,161 +27,82 @@ Created 4/20/1996 Heikki Tuuri #include "rem0rec.h" #include "trx0undo.h" -/************************************************************************* -Reads the trx id or roll ptr field from a clustered index record: this function -is slower than the specialized inline functions. */ - -dulint -row_get_rec_sys_field( -/*==================*/ - /* out: value of the field */ - ulint type, /* in: DATA_TRX_ID or DATA_ROLL_PTR */ - rec_t* rec, /* in: record */ - dict_index_t* index, /* in: clustered index */ - const ulint* offsets);/* in: rec_get_offsets(rec, index) */ -/************************************************************************* -Sets the trx id or roll ptr field in a clustered index record: this function -is slower than the specialized inline functions. */ - -void -row_set_rec_sys_field( -/*==================*/ - /* out: value of the field */ - ulint type, /* in: DATA_TRX_ID or DATA_ROLL_PTR */ - rec_t* rec, /* in: record */ - dict_index_t* index, /* in: clustered index */ - const ulint* offsets,/* in: rec_get_offsets(rec, index) */ - dulint val); /* in: value to set */ - -/************************************************************************* -Reads the trx id field from a clustered index record. */ +/*********************************************************************//** +Reads the trx id field from a clustered index record. +@return value of the field */ UNIV_INLINE -dulint +trx_id_t row_get_rec_trx_id( /*===============*/ - /* out: value of the field */ - rec_t* rec, /* in: record */ - dict_index_t* index, /* in: clustered index */ - const ulint* offsets)/* in: rec_get_offsets(rec, index) */ + const rec_t* rec, /*!< in: record */ + dict_index_t* index, /*!< in: clustered index */ + const ulint* offsets)/*!< in: rec_get_offsets(rec, index) */ { ulint offset; - ut_ad(index->type & DICT_CLUSTERED); + ut_ad(dict_index_is_clust(index)); ut_ad(rec_offs_validate(rec, index, offsets)); offset = index->trx_id_offset; - if (offset) { - return(trx_read_trx_id(rec + offset)); - } else { - return(row_get_rec_sys_field(DATA_TRX_ID, - rec, index, offsets)); + if (!offset) { + offset = row_get_trx_id_offset(rec, index, offsets); } + + return(trx_read_trx_id(rec + offset)); } -/************************************************************************* -Reads the roll pointer field from a clustered index record. */ +/*********************************************************************//** +Reads the roll pointer field from a clustered index record. +@return value of the field */ UNIV_INLINE -dulint +roll_ptr_t row_get_rec_roll_ptr( /*=================*/ - /* out: value of the field */ - rec_t* rec, /* in: record */ - dict_index_t* index, /* in: clustered index */ - const ulint* offsets)/* in: rec_get_offsets(rec, index) */ + const rec_t* rec, /*!< in: record */ + dict_index_t* index, /*!< in: clustered index */ + const ulint* offsets)/*!< in: rec_get_offsets(rec, index) */ { ulint offset; - ut_ad(index->type & DICT_CLUSTERED); + ut_ad(dict_index_is_clust(index)); ut_ad(rec_offs_validate(rec, index, offsets)); offset = index->trx_id_offset; - if (offset) { - return(trx_read_roll_ptr(rec + offset + DATA_TRX_ID_LEN)); - } else { - return(row_get_rec_sys_field(DATA_ROLL_PTR, - rec, index, offsets)); + if (!offset) { + offset = row_get_trx_id_offset(rec, index, offsets); } -} -/************************************************************************* -Writes the trx id field to a clustered index record. */ -UNIV_INLINE -void -row_set_rec_trx_id( -/*===============*/ - rec_t* rec, /* in: record */ - dict_index_t* index, /* in: clustered index */ - const ulint* offsets,/* in: rec_get_offsets(rec, index) */ - dulint trx_id) /* in: value of the field */ -{ - ulint offset; - - ut_ad(index->type & DICT_CLUSTERED); - ut_ad(rec_offs_validate(rec, index, offsets)); - - offset = index->trx_id_offset; - - if (offset) { - trx_write_trx_id(rec + offset, trx_id); - } else { - row_set_rec_sys_field(DATA_TRX_ID, - rec, index, offsets, trx_id); - } -} - -/************************************************************************* -Sets the roll pointer field in a clustered index record. */ -UNIV_INLINE -void -row_set_rec_roll_ptr( -/*=================*/ - rec_t* rec, /* in: record */ - dict_index_t* index, /* in: clustered index */ - const ulint* offsets,/* in: rec_get_offsets(rec, index) */ - dulint roll_ptr)/* in: value of the field */ -{ - ulint offset; - - ut_ad(index->type & DICT_CLUSTERED); - ut_ad(rec_offs_validate(rec, index, offsets)); - - offset = index->trx_id_offset; - - if (offset) { - trx_write_roll_ptr(rec + offset + DATA_TRX_ID_LEN, roll_ptr); - } else { - row_set_rec_sys_field(DATA_ROLL_PTR, - rec, index, offsets, roll_ptr); - } + return(trx_read_roll_ptr(rec + offset + DATA_TRX_ID_LEN)); } -/*********************************************************************** +/*******************************************************************//** Builds from a secondary index record a row reference with which we can search the clustered index record. */ UNIV_INLINE void row_build_row_ref_fast( /*===================*/ - dtuple_t* ref, /* in: typed data tuple where the + dtuple_t* ref, /*!< in/out: typed data tuple where the reference is built */ - const ulint* map, /* in: array of field numbers in rec + const ulint* map, /*!< in: array of field numbers in rec telling how ref should be built from the fields of rec */ - rec_t* rec, /* in: record in the index; must be + const rec_t* rec, /*!< in: record in the index; must be preserved while ref is used, as we do not copy field values to heap */ - const ulint* offsets)/* in: array returned by rec_get_offsets() */ + const ulint* offsets)/*!< in: array returned by rec_get_offsets() */ { dfield_t* dfield; - byte* field; + const byte* field; ulint len; ulint ref_len; ulint field_no; ulint i; ut_ad(rec_offs_validate(rec, NULL, offsets)); + ut_ad(!rec_offs_any_extern(offsets)); ref_len = dtuple_get_n_fields(ref); for (i = 0; i < ref_len; i++) { |