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1. BUG#45357 - 5.1.35 crashes with Failing assertion: index->type & DICT_CLUSTERED 2. Also fixes the compilation problem when the flag -DUNIV_MUST_NOT_INLINE Detailed revision comments: r5340 | marko | 2009-06-17 12:11:49 +0300 (Wed, 17 Jun 2009) | 4 lines branches/5.1: row_unlock_for_mysql(): When the clustered index is unknown, refuse to unlock the record. (Bug #45357, caused by the fix of Bug #39320). rb://132 approved by Sunny Bains. r5339 | marko | 2009-06-17 11:01:37 +0300 (Wed, 17 Jun 2009) | 2 lines branches/5.1: Add missing #include "mtr0log.h" so that the code compiles with -DUNIV_MUST_NOT_INLINE.
127 lines
3.1 KiB
Text
127 lines
3.1 KiB
Text
/******************************************************
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Rollback segment
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(c) 1996 Innobase Oy
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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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/**********************************************************************
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Gets a rollback segment header. */
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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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/* out: rollback segment header, page
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x-latched */
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ulint space, /* in: space where placed */
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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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trx_rsegf_t* header;
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header = TRX_RSEG + buf_page_get(space, page_no, RW_X_LATCH, mtr);
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#ifdef UNIV_SYNC_DEBUG
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buf_page_dbg_add_level(header, SYNC_RSEG_HEADER);
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#endif /* UNIV_SYNC_DEBUG */
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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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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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/* out: rollback segment header, page
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x-latched */
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ulint space, /* in: space where placed */
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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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trx_rsegf_t* header;
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header = TRX_RSEG + buf_page_get(space, page_no, RW_X_LATCH, mtr);
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#ifdef UNIV_SYNC_DEBUG
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buf_page_dbg_add_level(header, SYNC_RSEG_HEADER_NEW);
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#endif /* UNIV_SYNC_DEBUG */
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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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UNIV_INLINE
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ulint
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trx_rsegf_get_nth_undo(
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/*===================*/
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/* out: page number of the undo log segment */
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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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UNIV_INLINE
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ulint
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trx_rsegf_undo_find_free(
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/*=====================*/
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/* out: slot index or ULINT_UNDEFINED if not
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found */
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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; i < TRX_RSEG_N_SLOTS; 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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