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8eaf6f1177
Applied innodb-4.1-ss20 snapshot.
innobase/btr/btr0sea.c:
Applied innodb-4.1-ss20 snapshot.
Account for a race condition when dropping the adaptive
hash index for a B-tree page (Bug #16582).
btr_search_drop_page_hash_index(): Retry the operation if a hash
index with different parameters was built meanwhile. Add
diagnostics for the case that hash node pointers to the page
remain. This fix is from Heikki.
btr_search_info_update_hash(), btr_search_info_update_slow():
Document the parameter "info" as in/out.
innobase/fil/fil0fil.c:
Applied innodb-4.1-ss20 snapshot.
Keep track on unflushed modifications to file spaces. When
there are tens of thousnads of file spaces, flushing all files
in fil_flush_file_spaces() would be very slow (Bug #16582).
fil_flush_file_spaces(): Only flush unflushed file spaces.
fil_space_t, fil_system_t: Add a list of unflushed spaces.
innobase/include/btr0sea.ic:
Applied innodb-4.1-ss20 snapshot.
btr_search_info_update_hash(), btr_search_info_update_slow():
Document the parameter "info" as in/out.
67 lines
1.6 KiB
Text
67 lines
1.6 KiB
Text
/************************************************************************
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The index tree adaptive search
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(c) 1996 Innobase Oy
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Created 2/17/1996 Heikki Tuuri
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*************************************************************************/
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#include "dict0mem.h"
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#include "btr0cur.h"
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#include "buf0buf.h"
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/*************************************************************************
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Updates the search info. */
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void
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btr_search_info_update_slow(
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/*========================*/
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btr_search_t* info, /* in/out: search info */
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btr_cur_t* cursor);/* in: cursor which was just positioned */
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/************************************************************************
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Returns search info for an index. */
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UNIV_INLINE
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btr_search_t*
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btr_search_get_info(
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/*================*/
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/* out: search info; search mutex reserved */
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dict_index_t* index) /* in: index */
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{
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ut_ad(index);
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return(index->search_info);
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}
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/*************************************************************************
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Updates the search info. */
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UNIV_INLINE
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void
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btr_search_info_update(
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/*===================*/
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dict_index_t* index, /* in: index of the cursor */
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btr_cur_t* cursor) /* in: cursor which was just positioned */
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{
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btr_search_t* info;
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#ifdef UNIV_SYNC_DEBUG
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ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_SHARED));
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ut_ad(!rw_lock_own(&btr_search_latch, RW_LOCK_EX));
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#endif /* UNIV_SYNC_DEBUG */
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info = btr_search_get_info(index);
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info->hash_analysis++;
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if (info->hash_analysis < BTR_SEARCH_HASH_ANALYSIS) {
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/* Do nothing */
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return;
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}
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ut_ad(cursor->flag != BTR_CUR_HASH);
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btr_search_info_update_slow(info, cursor);
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}
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