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ad6a4986eb
If we meet DB_TOO_MANY_CONCURRENT_TRXS during the execution tab_create_graph from row_create_table_for_mysql(), .ibd file for the table should be created already but was not deleted for the error handling. rb:875 approved by Jimmy Yang
152 lines
4.3 KiB
Text
152 lines
4.3 KiB
Text
/*****************************************************************************
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Copyright (c) 1996, 2009, Innobase Oy. 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., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/trx0rseg.ic
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Rollback segment
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Created 3/26/1996 Heikki Tuuri
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*******************************************************/
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#include "srv0srv.h"
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#include "mtr0log.h"
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#include "trx0sys.h"
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/******************************************************************//**
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Gets a rollback segment header.
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@return rollback segment header, page x-latched */
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UNIV_INLINE
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trx_rsegf_t*
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trx_rsegf_get(
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/*==========*/
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ulint space, /*!< in: space where placed */
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ulint zip_size, /*!< in: compressed page size in bytes
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or 0 for uncompressed pages */
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ulint page_no, /*!< in: page number of the header */
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mtr_t* mtr) /*!< in: mtr */
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{
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buf_block_t* block;
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trx_rsegf_t* header;
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block = buf_page_get(space, zip_size, page_no, RW_X_LATCH, mtr);
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buf_block_dbg_add_level(block, SYNC_RSEG_HEADER);
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header = TRX_RSEG + buf_block_get_frame(block);
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return(header);
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}
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/******************************************************************//**
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Gets a newly created rollback segment header.
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@return rollback segment header, page x-latched */
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UNIV_INLINE
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trx_rsegf_t*
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trx_rsegf_get_new(
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/*==============*/
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ulint space, /*!< in: space where placed */
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ulint zip_size, /*!< in: compressed page size in bytes
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or 0 for uncompressed pages */
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ulint page_no, /*!< in: page number of the header */
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mtr_t* mtr) /*!< in: mtr */
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{
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buf_block_t* block;
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trx_rsegf_t* header;
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block = buf_page_get(space, zip_size, page_no, RW_X_LATCH, mtr);
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buf_block_dbg_add_level(block, SYNC_RSEG_HEADER_NEW);
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header = TRX_RSEG + buf_block_get_frame(block);
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return(header);
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}
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/***************************************************************//**
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Gets the file page number of the nth undo log slot.
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@return page number of the undo log segment */
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UNIV_INLINE
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ulint
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trx_rsegf_get_nth_undo(
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/*===================*/
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trx_rsegf_t* rsegf, /*!< in: rollback segment header */
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ulint n, /*!< in: index of slot */
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mtr_t* mtr) /*!< in: mtr */
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{
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if (UNIV_UNLIKELY(n >= TRX_RSEG_N_SLOTS)) {
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fprintf(stderr,
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"InnoDB: Error: trying to get slot %lu of rseg\n",
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(ulong) n);
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ut_error;
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}
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return(mtr_read_ulint(rsegf + TRX_RSEG_UNDO_SLOTS
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+ n * TRX_RSEG_SLOT_SIZE, MLOG_4BYTES, mtr));
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}
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/***************************************************************//**
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Sets the file page number of the nth undo log slot. */
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UNIV_INLINE
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void
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trx_rsegf_set_nth_undo(
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/*===================*/
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trx_rsegf_t* rsegf, /*!< in: rollback segment header */
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ulint n, /*!< in: index of slot */
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ulint page_no,/*!< in: page number of the undo log segment */
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mtr_t* mtr) /*!< in: mtr */
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{
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if (UNIV_UNLIKELY(n >= TRX_RSEG_N_SLOTS)) {
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fprintf(stderr,
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"InnoDB: Error: trying to set slot %lu of rseg\n",
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(ulong) n);
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ut_error;
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}
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mlog_write_ulint(rsegf + TRX_RSEG_UNDO_SLOTS + n * TRX_RSEG_SLOT_SIZE,
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page_no, MLOG_4BYTES, mtr);
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}
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/****************************************************************//**
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Looks for a free slot for an undo log segment.
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@return slot index or ULINT_UNDEFINED if not found */
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UNIV_INLINE
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ulint
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trx_rsegf_undo_find_free(
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/*=====================*/
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trx_rsegf_t* rsegf, /*!< in: rollback segment header */
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mtr_t* mtr) /*!< in: mtr */
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{
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ulint i;
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ulint page_no;
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for (i = 0;
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#ifndef UNIV_DEBUG
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i < TRX_RSEG_N_SLOTS;
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#else
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i < (trx_rseg_n_slots_debug ? trx_rseg_n_slots_debug : TRX_RSEG_N_SLOTS);
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#endif
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i++) {
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page_no = trx_rsegf_get_nth_undo(rsegf, i, mtr);
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if (page_no == FIL_NULL) {
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return(i);
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}
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}
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return(ULINT_UNDEFINED);
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}
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