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Commit 1d7747aa authored by heikki@donna.mysql.fi's avatar heikki@donna.mysql.fi
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ut0mem.c Merge changes in InnoDB-3.23.43b 

ut0ut.c 	Merge changes in InnoDB-3.23.43b
trx0purge.c	Merge changes in InnoDB-3.23.43b
trx0rec.c	Merge changes in InnoDB-3.23.43b
trx0trx.c	Merge changes in InnoDB-3.23.43b
trx0undo.c	Merge changes in InnoDB-3.23.43b
thr0loc.c	Merge changes in InnoDB-3.23.43b
sync0arr.c	Merge changes in InnoDB-3.23.43b
sync0rw.c	Merge changes in InnoDB-3.23.43b
sync0sync.c	Merge changes in InnoDB-3.23.43b
srv0srv.c	Merge changes in InnoDB-3.23.43b
srv0start.c	Merge changes in InnoDB-3.23.43b
row0ins.c	Merge changes in InnoDB-3.23.43b
row0mysql.c	Merge changes in InnoDB-3.23.43b
row0purge.c	Merge changes in InnoDB-3.23.43b
row0sel.c	Merge changes in InnoDB-3.23.43b
row0umod.c	Merge changes in InnoDB-3.23.43b
row0upd.c	Merge changes in InnoDB-3.23.43b
row0vers.c	Merge changes in InnoDB-3.23.43b
rem0cmp.c	Merge changes in InnoDB-3.23.43b
que0que.c	Merge changes in InnoDB-3.23.43b
pars0opt.c	Merge changes in InnoDB-3.23.43b
pars0pars.c	Merge changes in InnoDB-3.23.43b
lexyy.c 	Merge changes in InnoDB-3.23.43b
pars0grm.c	Merge changes in InnoDB-3.23.43b
page0page.c	Merge changes in InnoDB-3.23.43b
os0file.c	Merge changes in InnoDB-3.23.43b
mtr0log.c	Merge changes in InnoDB-3.23.43b
mem0pool.c	Merge changes in InnoDB-3.23.43b
log0log.c	Merge changes in InnoDB-3.23.43b
log0recv.c	Merge changes in InnoDB-3.23.43b
lock0lock.c	Merge changes in InnoDB-3.23.43b
ibuf0ibuf.c	Merge changes in InnoDB-3.23.43b
fil0fil.c	Merge changes in InnoDB-3.23.43b
dict0crea.c	Merge changes in InnoDB-3.23.43b
dict0dict.c	Merge changes in InnoDB-3.23.43b
dict0load.c	Merge changes in InnoDB-3.23.43b
dict0mem.c	Merge changes in InnoDB-3.23.43b
data0data.c	Merge changes in InnoDB-3.23.43b
data0type.c	Merge changes in InnoDB-3.23.43b
buf0buf.c	Merge changes in InnoDB-3.23.43b
buf0lru.c	Merge changes in InnoDB-3.23.43b
btr0btr.c	Merge changes in InnoDB-3.23.43b
btr0cur.c	Merge changes in InnoDB-3.23.43b
btr0pcur.c	Merge changes in InnoDB-3.23.43b
btr0sea.c	Merge changes in InnoDB-3.23.43b
data0type.ic	Merge changes in InnoDB-3.23.43b
dict0dict.ic	Merge changes in InnoDB-3.23.43b
mtr0mtr.ic	Merge changes in InnoDB-3.23.43b
row0upd.ic	Merge changes in InnoDB-3.23.43b
sync0ipm.ic	Merge changes in InnoDB-3.23.43b
sync0rw.ic	Merge changes in InnoDB-3.23.43b
sync0sync.ic	Merge changes in InnoDB-3.23.43b
trx0rseg.ic	Merge changes in InnoDB-3.23.43b
btr0pcur.ic	Merge changes in InnoDB-3.23.43b
buf0buf.ic	Merge changes in InnoDB-3.23.43b
data0data.ic	Merge changes in InnoDB-3.23.43b
row0upd.h	Merge changes in InnoDB-3.23.43b
srv0srv.h	Merge changes in InnoDB-3.23.43b
sync0arr.h	Merge changes in InnoDB-3.23.43b
sync0rw.h	Merge changes in InnoDB-3.23.43b
sync0sync.h	Merge changes in InnoDB-3.23.43b
trx0trx.h	Merge changes in InnoDB-3.23.43b
ut0mem.h	Merge changes in InnoDB-3.23.43b
data0data.h	Merge changes in InnoDB-3.23.43b
data0type.h	Merge changes in InnoDB-3.23.43b
db0err.h	Merge changes in InnoDB-3.23.43b
dict0crea.h	Merge changes in InnoDB-3.23.43b
dict0dict.h	Merge changes in InnoDB-3.23.43b
dict0load.h	Merge changes in InnoDB-3.23.43b
dict0mem.h	Merge changes in InnoDB-3.23.43b
dict0types.h	Merge changes in InnoDB-3.23.43b
fil0fil.h	Merge changes in InnoDB-3.23.43b
ibuf0ibuf.h	Merge changes in InnoDB-3.23.43b
lock0lock.h	Merge changes in InnoDB-3.23.43b
log0log.h	Merge changes in InnoDB-3.23.43b
mtr0mtr.h	Merge changes in InnoDB-3.23.43b
rem0cmp.h	Merge changes in InnoDB-3.23.43b
row0ins.h	Merge changes in InnoDB-3.23.43b
row0mysql.h	Merge changes in InnoDB-3.23.43b
btr0cur.h	Merge changes in InnoDB-3.23.43b
btr0pcur.h	Merge changes in InnoDB-3.23.43b
btr0sea.h	Merge changes in InnoDB-3.23.43b
buf0buf.h	Merge changes in InnoDB-3.23.43b
sql_table.cc	Merge changes in InnoDB-3.23.43b
sql_db.cc	Merge changes in InnoDB-3.23.43b
ha_innobase.cc	Merge changes in InnoDB-3.23.43b
handler.cc	Merge changes in InnoDB-3.23.43b
ha_innobase.h	Merge changes in InnoDB-3.23.43b
handler.h	Merge changes in InnoDB-3.23.43b
parent a88a9842
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Showing with 5241 additions and 1234 deletions
BitKeeper/etc/logging_ok
View file @ 1d7747aa
......@@ -4,3 +4,4 @@ paul@central.snake.net
serg@serg.mysql.com
monty@work.mysql.com
sasha@mysql.sashanet.com
heikki@donna.mysql.fi
innobase/btr/btr0btr.c
View file @ 1d7747aa
......@@ -2347,6 +2347,8 @@ btr_validate_level(
mtr_start(&mtr);
mtr_x_lock(dict_tree_get_lock(tree), &mtr);
page = btr_root_get(tree, &mtr);
space = buf_frame_get_space_id(page);
......
innobase/btr/btr0cur.c
View file @ 1d7747aa
......@@ -256,7 +256,8 @@ btr_cur_search_to_nth_level(
#ifdef UNIV_SEARCH_PERF_STAT
info->n_searches++;
#endif
if (latch_mode <= BTR_MODIFY_LEAF && info->last_hash_succ
if (btr_search_latch.writer != RW_LOCK_NOT_LOCKED
&& latch_mode <= BTR_MODIFY_LEAF && info->last_hash_succ
&& !estimate
&& btr_search_guess_on_hash(index, info, tuple, mode,
latch_mode, cursor,
......@@ -344,9 +345,7 @@ btr_cur_search_to_nth_level(
retry_page_get:
page = buf_page_get_gen(space, page_no, rw_latch, guess,
buf_mode,
#ifdef UNIV_SYNC_DEBUG
IB__FILE__, __LINE__,
#endif
mtr);
if (page == NULL) {
......@@ -380,7 +379,7 @@ retry_page_get:
}
#endif
ut_ad(0 == ut_dulint_cmp(tree->id,
btr_page_get_index_id(page)));
btr_page_get_index_id(page)));
if (height == ULINT_UNDEFINED) {
/* We are in the root node */
......@@ -515,9 +514,7 @@ btr_cur_open_at_index_side(
for (;;) {
page = buf_page_get_gen(space, page_no, RW_NO_LATCH, NULL,
BUF_GET,
#ifdef UNIV_SYNC_DEBUG
IB__FILE__, __LINE__,
#endif
mtr);
ut_ad(0 == ut_dulint_cmp(tree->id,
btr_page_get_index_id(page)));
......@@ -604,9 +601,7 @@ btr_cur_open_at_rnd_pos(
for (;;) {
page = buf_page_get_gen(space, page_no, RW_NO_LATCH, NULL,
BUF_GET,
#ifdef UNIV_SYNC_DEBUG
IB__FILE__, __LINE__,
#endif
mtr);
ut_ad(0 == ut_dulint_cmp(tree->id,
btr_page_get_index_id(page)));
......@@ -1222,6 +1217,57 @@ btr_cur_parse_update_in_place(
return(ptr);
}
/*****************************************************************
Updates a secondary index record when the update causes no size
changes in its fields. The only case when this function is currently
called is that in a char field characters change to others which
are identified in the collation order. */
ulint
btr_cur_update_sec_rec_in_place(
/*============================*/
/* out: DB_SUCCESS or error number */
btr_cur_t* cursor, /* in: cursor on the record to update;
cursor stays valid and positioned on the
same record */
upd_t* update, /* in: update vector */
que_thr_t* thr, /* in: query thread */
mtr_t* mtr) /* in: mtr */
{
dict_index_t* index = cursor->index;
dict_index_t* clust_index;
ulint err;
rec_t* rec;
dulint roll_ptr = ut_dulint_zero;
trx_t* trx = thr_get_trx(thr);
/* Only secondary index records are updated using this function */
ut_ad(0 == (index->type & DICT_CLUSTERED));
rec = btr_cur_get_rec(cursor);
err = lock_sec_rec_modify_check_and_lock(0, rec, index, thr);
if (err != DB_SUCCESS) {
return(err);
}
/* Remove possible hash index pointer to this record */
btr_search_update_hash_on_delete(cursor);
row_upd_rec_in_place(rec, update);
clust_index = dict_table_get_first_index(index->table);
/* Note that roll_ptr is really just a dummy value since
a secondary index record does not contain any sys columns */
btr_cur_update_in_place_log(BTR_KEEP_SYS_FLAG, rec, clust_index,
update, trx, roll_ptr, mtr);
return(DB_SUCCESS);
}
/*****************************************************************
Updates a record when the update causes no size changes in its fields. */
......@@ -1248,7 +1294,7 @@ btr_cur_update_in_place(
ibool was_delete_marked;
/* Only clustered index records are updated using this function */
ut_ad((cursor->index)->type & DICT_CLUSTERED);
ut_ad(cursor->index->type & DICT_CLUSTERED);
rec = btr_cur_get_rec(cursor);
index = cursor->index;
......@@ -2477,27 +2523,33 @@ btr_estimate_n_rows_in_range(
}
/***********************************************************************
Estimates the number of different key values in a given index. */
Estimates the number of different key values in a given index, for
each n-column prefix of the index where n <= dict_index_get_n_unique(index).
The estimates are stored in the array index->stat_n_diff_key_vals. */
ulint
void
btr_estimate_number_of_different_key_vals(
/*======================================*/
/* out: estimated number of key values */
dict_index_t* index) /* in: index */
{
btr_cur_t cursor;
page_t* page;
rec_t* rec;
ulint total_n_recs = 0;
ulint n_diff_in_page;
ulint n_diff = 0;
ulint n_cols;
ulint matched_fields;
ulint matched_bytes;
ulint* n_diff;
ulint not_empty_flag = 0;
ulint i;
ulint j;
mtr_t mtr;
if (index->type & DICT_UNIQUE) {
return(index->table->stat_n_rows);
n_cols = dict_index_get_n_unique(index);
n_diff = mem_alloc((n_cols + 1) * sizeof(ib_longlong));
for (j = 0; j <= n_cols; j++) {
n_diff[j] = 0;
}
/* We sample some pages in the index to get an estimate */
......@@ -2507,17 +2559,19 @@ btr_estimate_number_of_different_key_vals(
btr_cur_open_at_rnd_pos(index, BTR_SEARCH_LEAF, &cursor, &mtr);
/* Count the number of different key values minus one on this
index page: we subtract one because otherwise our algorithm
would give a wrong estimate for an index where there is
just one key value */
/* Count the number of different key values minus one
for each prefix of the key on this index page: we subtract
one because otherwise our algorithm would give a wrong
estimate for an index where there is just one key value */
page = btr_cur_get_page(&cursor);
rec = page_get_infimum_rec(page);
rec = page_rec_get_next(rec);
n_diff_in_page = 0;
if (rec != page_get_supremum_rec(page)) {
not_empty_flag = 1;
}
while (rec != page_get_supremum_rec(page)
&& page_rec_get_next(rec)
......@@ -2528,30 +2582,30 @@ btr_estimate_number_of_different_key_vals(
cmp_rec_rec_with_match(rec, page_rec_get_next(rec),
index, &matched_fields,
&matched_bytes);
if (matched_fields <
dict_index_get_n_ordering_defined_by_user(
index)) {
n_diff_in_page++;
}
for (j = matched_fields + 1; j <= n_cols; j++) {
n_diff[j]++;
}
rec = page_rec_get_next(rec);
}
n_diff += n_diff_in_page;
total_n_recs += page_get_n_recs(page);
mtr_commit(&mtr);
}
if (n_diff == 0) {
/* We play safe and assume that there are just two different
key values in the index */
return(2);
/* If we saw k borders between different key values on
BTR_KEY_VAL_ESTIMATE_N_PAGES leaf pages, we can estimate how many
there will be in index->stat_n_leaf_pages */
for (j = 0; j <= n_cols; j++) {
index->stat_n_diff_key_vals[j] =
(n_diff[j] * index->stat_n_leaf_pages
+ BTR_KEY_VAL_ESTIMATE_N_PAGES - 1
+ not_empty_flag)
/ BTR_KEY_VAL_ESTIMATE_N_PAGES;
}
return(index->table->stat_n_rows / (total_n_recs / n_diff));
mem_free(n_diff);
}
/*================== EXTERNAL STORAGE OF BIG FIELDS ===================*/
......
innobase/btr/btr0pcur.c
View file @ 1d7747aa
......@@ -62,8 +62,10 @@ btr_pcur_free_for_mysql(
/******************************************************************
The position of the cursor is stored by taking an initial segment of the
record the cursor is positioned on, before, or after, and copying it to the
cursor data structure. NOTE that the page where the cursor is positioned
must not be empty! */
cursor data structure, or just setting a flag if the cursor id before the
first in an EMPTY tree, or after the last in an EMPTY tree. NOTE that the
page where the cursor is positioned must not be empty if the index tree is
not totally empty! */
void
btr_pcur_store_position(
......@@ -93,9 +95,21 @@ btr_pcur_store_position(
ut_a(cursor->latch_mode != BTR_NO_LATCHES);
if (page_get_n_recs(page) == 0) {
/* It must be an empty index tree */
/* Cannot store position! */
btr_pcur_close(cursor);
ut_a(btr_page_get_next(page, mtr) == FIL_NULL
&& btr_page_get_prev(page, mtr) == FIL_NULL);
if (rec == page_get_supremum_rec(page)) {
cursor->rel_pos = BTR_PCUR_AFTER_LAST_IN_TREE;
cursor->old_stored = BTR_PCUR_OLD_STORED;
return;
}
cursor->rel_pos = BTR_PCUR_BEFORE_FIRST_IN_TREE;
cursor->old_stored = BTR_PCUR_OLD_STORED;
return;
}
......@@ -140,13 +154,15 @@ btr_pcur_copy_stored_position(
ut_memcpy((byte*)pcur_receive, (byte*)pcur_donate, sizeof(btr_pcur_t));
pcur_receive->old_rec_buf = mem_alloc(pcur_donate->buf_size);
if (pcur_donate->old_rec_buf) {
pcur_receive->old_rec_buf = mem_alloc(pcur_donate->buf_size);
ut_memcpy(pcur_receive->old_rec_buf, pcur_donate->old_rec_buf,
ut_memcpy(pcur_receive->old_rec_buf, pcur_donate->old_rec_buf,
pcur_donate->buf_size);
pcur_receive->old_rec = pcur_receive->old_rec_buf
pcur_receive->old_rec = pcur_receive->old_rec_buf
+ (pcur_donate->old_rec - pcur_donate->old_rec_buf);
}
}
/******************************************************************
......@@ -158,7 +174,9 @@ to the last record LESS OR EQUAL to the stored record;
the last record LESS than the user record which was the successor of the page
infimum;
(3) cursor was positioned on the page supremum: restores to the first record
GREATER than the user record which was the predecessor of the supremum. */
GREATER than the user record which was the predecessor of the supremum.
(4) cursor was positioned before the first or after the last in an empty tree:
restores to before first or after the last in the tree. */
ibool
btr_pcur_restore_position(
......@@ -177,17 +195,33 @@ btr_pcur_restore_position(
dtuple_t* tuple;
ulint mode;
ulint old_mode;
ibool from_left;
mem_heap_t* heap;
ut_a((cursor->pos_state == BTR_PCUR_WAS_POSITIONED)
|| (cursor->pos_state == BTR_PCUR_IS_POSITIONED));
ut_a(cursor->pos_state == BTR_PCUR_WAS_POSITIONED
|| cursor->pos_state == BTR_PCUR_IS_POSITIONED);
ut_a(cursor->old_stored == BTR_PCUR_OLD_STORED);
if (cursor->rel_pos == BTR_PCUR_AFTER_LAST_IN_TREE
|| cursor->rel_pos == BTR_PCUR_BEFORE_FIRST_IN_TREE) {
if (cursor->rel_pos == BTR_PCUR_BEFORE_FIRST_IN_TREE) {
from_left = TRUE;
} else {
from_left = FALSE;
}
btr_cur_open_at_index_side(from_left,
btr_pcur_get_btr_cur(cursor)->index, latch_mode,
btr_pcur_get_btr_cur(cursor), mtr);
return(FALSE);
}
ut_a(cursor->old_rec);
page = btr_cur_get_page(btr_pcur_get_btr_cur(cursor));
if ((latch_mode == BTR_SEARCH_LEAF)
|| (latch_mode == BTR_MODIFY_LEAF)) {
if (latch_mode == BTR_SEARCH_LEAF || latch_mode == BTR_MODIFY_LEAF) {
/* Try optimistic restoration */
if (buf_page_optimistic_get(latch_mode, page,
......@@ -242,16 +276,15 @@ btr_pcur_restore_position(
/* Restore the old search mode */
cursor->search_mode = old_mode;
if ((cursor->rel_pos == BTR_PCUR_ON)
&& btr_pcur_is_on_user_rec(cursor, mtr)
&& (0 == cmp_dtuple_rec(tuple, btr_pcur_get_rec(cursor)))) {
if (cursor->rel_pos == BTR_PCUR_ON
&& btr_pcur_is_on_user_rec(cursor, mtr)
&& 0 == cmp_dtuple_rec(tuple, btr_pcur_get_rec(cursor))) {
/* We have to store the NEW value for the modify clock, since
the cursor can now be on a different page! */
cursor->modify_clock = buf_frame_get_modify_clock(
buf_frame_align(
btr_pcur_get_rec(cursor)));
buf_frame_align(btr_pcur_get_rec(cursor)));
mem_heap_free(heap);
return(TRUE);
......@@ -366,6 +399,7 @@ btr_pcur_move_backward_from_page(
latch_mode2 = BTR_MODIFY_PREV;
} else {
latch_mode2 = 0; /* To eliminate compiler warning */
ut_error;
}
......
innobase/btr/btr0sea.c
View file @ 1d7747aa
......@@ -680,9 +680,7 @@ btr_search_guess_on_hash(
success = buf_page_get_known_nowait(latch_mode, page,
BUF_MAKE_YOUNG,
#ifdef UNIV_SYNC_DEBUG
IB__FILE__, __LINE__,
#endif
mtr);
rw_lock_s_unlock(&btr_search_latch);
......
innobase/buf/buf0buf.c
View file @ 1d7747aa
This diff is collapsed.
innobase/buf/buf0lru.c
View file @ 1d7747aa
......@@ -551,6 +551,10 @@ buf_LRU_block_free_non_file_page(
block->state = BUF_BLOCK_NOT_USED;
#ifdef UNIV_DEBUG
/* Wipe contents of page to reveal possible stale pointers to it */
memset(block->frame, '\0', UNIV_PAGE_SIZE);
#endif
UT_LIST_ADD_FIRST(free, buf_pool->free, block);
}
......
innobase/data/data0data.c
View file @ 1d7747aa
......@@ -14,6 +14,7 @@ Created 5/30/1994 Heikki Tuuri
#include "ut0rnd.h"
#include "rem0rec.h"
#include "rem0cmp.h"
#include "page0page.h"
#include "dict0dict.h"
#include "btr0cur.h"
......@@ -63,6 +64,53 @@ dtuple_get_nth_field_noninline(
return(dtuple_get_nth_field(tuple, n));
}
/****************************************************************
Returns TRUE if lengths of two dtuples are equal and respective data fields
in them are equal when compared with collation in char fields (not as binary
strings). */
ibool
dtuple_datas_are_ordering_equal(
/*============================*/
/* out: TRUE if length and fieds are equal
when compared with cmp_data_data:
NOTE: in character type fields some letters
are identified with others! (collation) */
dtuple_t* tuple1, /* in: tuple 1 */
dtuple_t* tuple2) /* in: tuple 2 */
{
dfield_t* field1;
dfield_t* field2;
ulint n_fields;
ulint i;
ut_ad(tuple1 && tuple2);
ut_ad(tuple1->magic_n = DATA_TUPLE_MAGIC_N);
ut_ad(tuple2->magic_n = DATA_TUPLE_MAGIC_N);
ut_ad(dtuple_check_typed(tuple1));
ut_ad(dtuple_check_typed(tuple2));
n_fields = dtuple_get_n_fields(tuple1);
if (n_fields != dtuple_get_n_fields(tuple2)) {
return(FALSE);
}
for (i = 0; i < n_fields; i++) {
field1 = dtuple_get_nth_field(tuple1, i);
field2 = dtuple_get_nth_field(tuple2, i);
if (0 != cmp_dfield_dfield(field1, field2)) {
return(FALSE);
}
}
return(TRUE);
}
/*************************************************************************
Creates a dtuple for use in MySQL. */
......@@ -408,7 +456,7 @@ dtuple_convert_big_rec(
ulint size;
ulint n_fields;
ulint longest;
ulint longest_i;
ulint longest_i = ULINT_MAX;
ibool is_externally_stored;
ulint i;
ulint j;
......
innobase/data/data0type.c
View file @ 1d7747aa
......@@ -28,7 +28,6 @@ dtype_validate(
ut_a((type->mtype >= DATA_VARCHAR) && (type->mtype <= DATA_MYSQL));
if (type->mtype == DATA_SYS) {
ut_a(type->prtype >= DATA_ROW_ID);
ut_a(type->prtype <= DATA_MIX_ID);
}
......@@ -45,11 +44,10 @@ dtype_print(
{
ulint mtype;
ulint prtype;
ulint len;
ut_a(type);
printf("DATA TYPE: ");
mtype = type->mtype;
prtype = type->prtype;
if (mtype == DATA_VARCHAR) {
......@@ -65,8 +63,10 @@ dtype_print(
} else if (mtype == DATA_SYS) {
printf("DATA_SYS");
} else {
printf("unknown type %lu", mtype);
printf("type %lu", mtype);
}
len = type->len;
if ((type->mtype == DATA_SYS)
|| (type->mtype == DATA_VARCHAR)
......@@ -74,8 +74,13 @@ dtype_print(
printf(" ");
if (prtype == DATA_ROW_ID) {
printf("DATA_ROW_ID");
len = DATA_ROW_ID_LEN;
} else if (prtype == DATA_ROLL_PTR) {
printf("DATA_ROLL_PTR");
len = DATA_ROLL_PTR_LEN;
} else if (prtype == DATA_TRX_ID) {
printf("DATA_TRX_ID");
len = DATA_TRX_ID_LEN;
} else if (prtype == DATA_MIX_ID) {
printf("DATA_MIX_ID");
} else if (prtype == DATA_ENGLISH) {
......@@ -83,9 +88,9 @@ dtype_print(
} else if (prtype == DATA_FINNISH) {
printf("DATA_FINNISH");
} else {
printf("unknown prtype %lu", mtype);
printf("prtype %lu", mtype);
}
}
printf("; len %lu prec %lu\n", type->len, type->prec);
printf(" len %lu prec %lu", len, type->prec);
}
innobase/dict/dict0crea.c
View file @ 1d7747aa
......@@ -17,9 +17,13 @@ Created 1/8/1996 Heikki Tuuri
#include "page0page.h"
#include "mach0data.h"
#include "dict0boot.h"
#include "dict0dict.h"
#include "que0que.h"
#include "row0ins.h"
#include "row0mysql.h"
#include "pars0pars.h"
#include "trx0roll.h"
#include "usr0sess.h"
/*********************************************************************
Based on a table object, this function builds the entry to be inserted
......@@ -1019,3 +1023,228 @@ function_exit:
return(thr);
}
/********************************************************************
Creates the foreign key constraints system tables inside InnoDB
at database creation or database start if they are not found or are
not of the right form. */
ulint
dict_create_or_check_foreign_constraint_tables(void)
/*================================================*/
/* out: DB_SUCCESS or error code */
{
dict_table_t* table1;
dict_table_t* table2;
que_thr_t* thr;
que_t* graph;
ulint error;
trx_t* trx;
char* str;
mutex_enter(&(dict_sys->mutex));
table1 = dict_table_get_low("SYS_FOREIGN");
table2 = dict_table_get_low("SYS_FOREIGN_COLS");
if (table1 && table2
&& UT_LIST_GET_LEN(table1->indexes) == 3
&& UT_LIST_GET_LEN(table2->indexes) == 1) {
/* Foreign constraint system tables have already been
created, and they are ok */
mutex_exit(&(dict_sys->mutex));
return(DB_SUCCESS);
}
trx = trx_allocate_for_mysql();
trx->op_info = "creating foreign key sys tables";
if (table1) {
fprintf(stderr,
"InnoDB: dropping incompletely created SYS_FOREIGN table\n");
row_drop_table_for_mysql("SYS_FOREIGN", trx, TRUE);
}
if (table2) {
fprintf(stderr,
"InnoDB: dropping incompletely created SYS_FOREIGN_COLS table\n");
row_drop_table_for_mysql("SYS_FOREIGN_COLS", trx, TRUE);
}
fprintf(stderr,
"InnoDB: creating foreign key constraint system tables\n");
/* NOTE: in dict_load_foreigns we use the fact that
there are 2 secondary indexes on SYS_FOREIGN, and they
are defined just like below */
str =
"PROCEDURE CREATE_FOREIGN_SYS_TABLES_PROC () IS\n"
"BEGIN\n"
"CREATE TABLE\n"
"SYS_FOREIGN(ID CHAR, FOR_NAME CHAR, REF_NAME CHAR, N_COLS INT);\n"
"CREATE UNIQUE CLUSTERED INDEX ID_IND ON SYS_FOREIGN (ID);\n"
"CREATE INDEX FOR_IND ON SYS_FOREIGN (FOR_NAME);\n"
"CREATE INDEX REF_IND ON SYS_FOREIGN (REF_NAME);\n"
"CREATE TABLE\n"
"SYS_FOREIGN_COLS(ID CHAR, POS INT, FOR_COL_NAME CHAR, REF_COL_NAME CHAR);\n"
"CREATE UNIQUE CLUSTERED INDEX ID_IND ON SYS_FOREIGN_COLS (ID, POS);\n"
"COMMIT WORK;\n"
"END;\n";
graph = pars_sql(str);
ut_a(graph);
graph->trx = trx;
trx->graph = NULL;
graph->fork_type = QUE_FORK_MYSQL_INTERFACE;
ut_a(thr = que_fork_start_command(graph, SESS_COMM_EXECUTE, 0));
que_run_threads(thr);
error = trx->error_state;
if (error != DB_SUCCESS) {
ut_a(error == DB_OUT_OF_FILE_SPACE);
fprintf(stderr, "InnoDB: creation failed\n");
fprintf(stderr, "InnoDB: tablespace is full\n");
fprintf(stderr,
"InnoDB: dropping incompletely created SYS_FOREIGN tables\n");
row_drop_table_for_mysql("SYS_FOREIGN", trx, TRUE);
row_drop_table_for_mysql("SYS_FOREIGN_COLS", trx, TRUE);
error = DB_MUST_GET_MORE_FILE_SPACE;
}
que_graph_free(graph);
trx->op_info = "";
trx_free_for_mysql(trx);
if (error == DB_SUCCESS) {
fprintf(stderr,
"InnoDB: foreign key constraint system tables created\n");
}
mutex_exit(&(dict_sys->mutex));
return(error);
}
/************************************************************************
Adds foreign key definitions to data dictionary tables in the database. */
ulint
dict_create_add_foreigns_to_dictionary(
/*===================================*/
/* out: error code or DB_SUCCESS */
dict_table_t* table, /* in: table */
trx_t* trx) /* in: transaction */
{
dict_foreign_t* foreign;
que_thr_t* thr;
que_t* graph;
dulint id;
ulint len;
ulint error;
ulint i;
char buf2[50];
char buf[10000];
ut_ad(mutex_own(&(dict_sys->mutex)));
if (NULL == dict_table_get_low("SYS_FOREIGN")) {
fprintf(stderr,
"InnoDB: table SYS_FOREIGN not found from internal data dictionary\n");
return(DB_ERROR);
}
foreign = UT_LIST_GET_FIRST(table->foreign_list);
loop:
if (foreign == NULL) {
return(DB_SUCCESS);
}
/* Build an InnoDB stored procedure which will insert the necessary
rows to SYS_FOREIGN and SYS_FOREIGN_COLS */
len = 0;
len += sprintf(buf,
"PROCEDURE ADD_FOREIGN_DEFS_PROC () IS\n"
"BEGIN\n");
/* We allocate the new id from the sequence of table id's */
id = dict_hdr_get_new_id(DICT_HDR_TABLE_ID);
sprintf(buf2, "%lu_%lu", ut_dulint_get_high(id),
ut_dulint_get_low(id));
foreign->id = mem_heap_alloc(foreign->heap, ut_strlen(buf2) + 1);
ut_memcpy(foreign->id, buf2, ut_strlen(buf2) + 1);
len += sprintf(buf + len,
"INSERT INTO SYS_FOREIGN VALUES('%lu_%lu', '%s', '%s', %lu);\n",
ut_dulint_get_high(id),
ut_dulint_get_low(id),
table->name,
foreign->referenced_table_name,
foreign->n_fields);
for (i = 0; i < foreign->n_fields; i++) {
len += sprintf(buf + len,
"INSERT INTO SYS_FOREIGN_COLS VALUES('%lu_%lu', %lu, '%s', '%s');\n",
ut_dulint_get_high(id),
ut_dulint_get_low(id),
i,
foreign->foreign_col_names[i],
foreign->referenced_col_names[i]);
}
len += sprintf(buf + len,"COMMIT WORK;\nEND;\n");
graph = pars_sql(buf);
ut_a(graph);
graph->trx = trx;
trx->graph = NULL;
graph->fork_type = QUE_FORK_MYSQL_INTERFACE;
ut_a(thr = que_fork_start_command(graph, SESS_COMM_EXECUTE, 0));
que_run_threads(thr);
error = trx->error_state;
que_graph_free(graph);
if (error != DB_SUCCESS) {
ut_a(error == DB_OUT_OF_FILE_SPACE);
fprintf(stderr, "InnoDB: foreign constraint creation failed\n");
fprintf(stderr, "InnoDB: tablespace is full\n");
trx_general_rollback_for_mysql(trx, FALSE, NULL);
error = DB_MUST_GET_MORE_FILE_SPACE;
return(error);
}
foreign = UT_LIST_GET_NEXT(foreign_list, foreign);
goto loop;
}
innobase/dict/dict0dict.c
View file @ 1d7747aa
This diff is collapsed.
innobase/dict/dict0load.c
View file @ 1d7747aa
This diff is collapsed.
innobase/dict/dict0mem.c
View file @ 1d7747aa
......@@ -18,6 +18,7 @@ Created 1/8/1996 Heikki Tuuri
#include "dict0dict.h"
#include "que0que.h"
#include "pars0pars.h"
#include "lock0lock.h"
#define DICT_HEAP_SIZE 100 /* initial memory heap size when
creating a table or index object */
......@@ -63,7 +64,12 @@ dict_mem_table_create(
table->cols = mem_heap_alloc(heap, (n_cols + DATA_N_SYS_COLS)
* sizeof(dict_col_t));
UT_LIST_INIT(table->indexes);
table->auto_inc_lock = mem_heap_alloc(heap, lock_get_size());
UT_LIST_INIT(table->locks);
UT_LIST_INIT(table->foreign_list);
UT_LIST_INIT(table->referenced_list);
table->does_not_fit_in_memory = FALSE;
......@@ -199,12 +205,49 @@ dict_mem_index_create(
* sizeof(dict_field_t));
/* The '1 +' above prevents allocation
of an empty mem block */
index->stat_n_diff_key_vals = NULL;
index->cached = FALSE;
index->magic_n = DICT_INDEX_MAGIC_N;
return(index);
}
/**************************************************************************
Creates and initializes a foreign constraint memory object. */
dict_foreign_t*
dict_mem_foreign_create(void)
/*=========================*/
/* out, own: foreign constraint struct */
{
dict_foreign_t* foreign;
mem_heap_t* heap;
heap = mem_heap_create(100);
foreign = mem_heap_alloc(heap, sizeof(dict_foreign_t));
foreign->heap = heap;
foreign->id = NULL;
foreign->foreign_table_name = NULL;
foreign->foreign_table = NULL;
foreign->foreign_col_names = NULL;
foreign->referenced_table_name = NULL;
foreign->referenced_table = NULL;
foreign->referenced_col_names = NULL;
foreign->n_fields = 0;
foreign->foreign_index = NULL;
foreign->referenced_index = NULL;
return(foreign);
}
/**************************************************************************
Adds a field definition to an index. NOTE: does not take a copy
of the column name if the field is a column. The memory occupied
......
innobase/fil/fil0fil.c
View file @ 1d7747aa
......@@ -77,6 +77,9 @@ out of the LRU-list and keep a count of pending operations. When an operation
completes, we decrement the count and return the file node to the LRU-list if
the count drops to zero. */
ulint fil_n_pending_log_flushes = 0;
ulint fil_n_pending_tablespace_flushes = 0;
/* Null file address */
fil_addr_t fil_addr_null = {FIL_NULL, 0};
......@@ -856,6 +859,15 @@ fil_node_prepare_for_io(
last_node = UT_LIST_GET_LAST(system->LRU);
if (last_node == NULL) {
fprintf(stderr,
"InnoDB: Error: cannot close any file to open another for i/o\n"
"InnoDB: Pending i/o's on %lu files exist\n",
system->n_open_pending);
ut_a(0);
}
fil_node_close(last_node, system);
}
......@@ -973,7 +985,8 @@ fil_io(
ibool ret;
ulint is_log;
ulint wake_later;
ulint count;
is_log = type & OS_FILE_LOG;
type = type & ~OS_FILE_LOG;
......@@ -996,7 +1009,7 @@ fil_io(
#endif
if (sync) {
mode = OS_AIO_SYNC;
} else if ((type == OS_FILE_READ) && !is_log
} else if (type == OS_FILE_READ && !is_log
&& ibuf_page(space_id, block_offset)) {
mode = OS_AIO_IBUF;
} else if (is_log) {
......@@ -1006,9 +1019,44 @@ fil_io(
}
system = fil_system;
count = 0;
loop:
count++;
/* NOTE that there is a possibility of a hang here:
if the read i/o-handler thread needs to complete
a read by reading from the insert buffer, it may need to
post another read. But if the maximum number of files
are already open, it cannot proceed from here! */
mutex_enter(&(system->mutex));
if (count < 500 && !is_log && !ibuf_inside()
&& system->n_open_pending >= (3 * system->max_n_open) / 4) {
/* We are not doing an ibuf operation: leave a
safety margin of openable files for possible ibuf
merges needed in page read completion */
mutex_exit(&(system->mutex));
/* Wake the i/o-handler threads to make sure pending
i/o's are handled and eventually we can open the file */
os_aio_simulated_wake_handler_threads();
os_thread_sleep(100000);
if (count > 50) {
fprintf(stderr,
"InnoDB: Warning: waiting for file closes to proceed\n"
"InnoDB: round %lu\n", count);
}
goto loop;
}
if (system->n_open_pending == system->max_n_open) {
/* It is not sure we can open the file if it is closed: wait */
......@@ -1018,11 +1066,19 @@ loop:
mutex_exit(&(system->mutex));
/* Wake the i/o-handler threads to make sure pending
i/o's are handled and eventually we can open the file */
os_aio_simulated_wake_handler_threads();
fprintf(stderr,
"InnoDB: Warning: max allowed number of files is open\n");
os_event_wait(event);
goto loop;
}
HASH_SEARCH(hash, system->spaces, space_id, space,
space->id == space_id);
ut_a(space);
......@@ -1160,6 +1216,7 @@ fil_aio_wait(
#elif defined(POSIX_ASYNC_IO)
ret = os_aio_posix_handle(segment, &fil_node, &message);
#else
ret = 0; /* Eliminate compiler warning */
ut_a(0);
#endif
} else {
......@@ -1220,6 +1277,12 @@ fil_flush(
node->is_modified = FALSE;
if (space->purpose == FIL_TABLESPACE) {
fil_n_pending_tablespace_flushes++;
} else {
fil_n_pending_log_flushes++;
}
mutex_exit(&(system->mutex));
/* Note that it is not certain, when we have
......@@ -1233,6 +1296,12 @@ fil_flush(
os_file_flush(file);
mutex_enter(&(system->mutex));
if (space->purpose == FIL_TABLESPACE) {
fil_n_pending_tablespace_flushes--;
} else {
fil_n_pending_log_flushes--;
}
}
node = UT_LIST_GET_NEXT(chain, node);
......@@ -1377,7 +1446,7 @@ fil_page_set_type(
ulint type) /* in: type */
{
ut_ad(page);
ut_ad((type == FIL_PAGE_INDEX) || (type == FIL_PAGE_INDEX));
ut_ad((type == FIL_PAGE_INDEX) || (type == FIL_PAGE_UNDO_LOG));
mach_write_to_2(page + FIL_PAGE_TYPE, type);
}
......
innobase/ibuf/ibuf0ibuf.c
View file @ 1d7747aa
......@@ -1013,7 +1013,7 @@ ibuf_rec_get_volume(
ulint i;
ut_ad(ibuf_inside());
ut_ad(rec_get_n_fields(rec) > 2);
ut_ad(rec_get_n_fields(ibuf_rec) > 2);
n_fields = rec_get_n_fields(ibuf_rec) - 2;
......@@ -1624,13 +1624,14 @@ ibuf_get_merge_page_nos(
/*************************************************************************
Contracts insert buffer trees by reading pages to the buffer pool. */
static
ulint
ibuf_contract(
/*==========*/
ibuf_contract_ext(
/*==============*/
/* out: a lower limit for the combined size in bytes
of entries which will be merged from ibuf trees to the
pages read, 0 if ibuf is empty */
ulint* n_pages,/* out: number of pages to which merged */
ibool sync) /* in: TRUE if the caller wants to wait for the
issued read with the highest tablespace address
to complete */
......@@ -1644,6 +1645,8 @@ ibuf_contract(
ulint n_stored;
ulint sum_sizes;
mtr_t mtr;
*n_pages = 0;
loop:
ut_ad(!ibuf_inside());
......@@ -1730,9 +1733,64 @@ loop:
buf_read_ibuf_merge_pages(sync, space, page_nos, n_stored);
*n_pages = n_stored;
return(sum_sizes + 1);
}
/*************************************************************************
Contracts insert buffer trees by reading pages to the buffer pool. */
ulint
ibuf_contract(
/*==========*/
/* out: a lower limit for the combined size in bytes
of entries which will be merged from ibuf trees to the
pages read, 0 if ibuf is empty */
ibool sync) /* in: TRUE if the caller wants to wait for the
issued read with the highest tablespace address
to complete */
{
ulint n_pages;
return(ibuf_contract_ext(&n_pages, sync));
}
/*************************************************************************
Contracts insert buffer trees by reading pages to the buffer pool. */
ulint
ibuf_contract_for_n_pages(
/*======================*/
/* out: a lower limit for the combined size in bytes
of entries which will be merged from ibuf trees to the
pages read, 0 if ibuf is empty */
ibool sync, /* in: TRUE if the caller wants to wait for the
issued read with the highest tablespace address
to complete */
ulint n_pages)/* in: try to read at least this many pages to
the buffer pool and merge the ibuf contents to
them */
{
ulint sum_bytes = 0;
ulint sum_pages = 0;
ulint n_bytes;
ulint n_pag2;
while (sum_pages < n_pages) {
n_bytes = ibuf_contract_ext(&n_pag2, sync);
if (n_bytes == 0) {
return(sum_bytes);
}
sum_bytes += n_bytes;
sum_pages += n_pag2;
}
return(sum_bytes);
}
/*************************************************************************
Contract insert buffer trees after insert if they are too big. */
UNIV_INLINE
......@@ -2252,8 +2310,6 @@ ibuf_insert_to_index_page(
if (low_match == dtuple_get_n_fields(entry)) {
rec = page_cur_get_rec(&page_cur);
ut_ad(rec_get_deleted_flag(rec));
btr_cur_del_unmark_for_ibuf(rec, mtr);
} else {
......@@ -2306,6 +2362,8 @@ ibuf_delete_rec(
should belong */
btr_pcur_t* pcur, /* in: pcur positioned on the record to
delete, having latch mode BTR_MODIFY_LEAF */
dtuple_t* search_tuple,
/* in: search tuple for entries of page_no */
mtr_t* mtr) /* in: mtr */
{
ibool success;
......@@ -2336,12 +2394,33 @@ ibuf_delete_rec(
mtr_start(mtr);
ut_a(btr_pcur_restore_position(BTR_MODIFY_TREE, pcur, mtr));
success = btr_pcur_restore_position(BTR_MODIFY_TREE, pcur, mtr);
if (!success) {
fprintf(stderr,
"InnoDB: ERROR: Send the output to heikki.tuuri@innodb.com\n");
fprintf(stderr, "InnoDB: ibuf cursor restoration fails!\n");
fprintf(stderr, "InnoDB: ibuf record inserted to page %lu\n",
page_no);
rec_print(btr_pcur_get_rec(pcur));
rec_print(pcur->old_rec);
dtuple_print(search_tuple);
rec_print(page_rec_get_next(btr_pcur_get_rec(pcur)));
mtr_commit(mtr);
fprintf(stderr, "InnoDB: Validating insert buffer tree:\n");
ut_a(btr_validate_tree(ibuf_data->index->tree));
fprintf(stderr, "InnoDB: Ibuf tree ok\n");
}
ut_a(success);
root = ibuf_tree_root_get(ibuf_data, space, mtr);
btr_cur_pessimistic_delete(&err, TRUE, btr_pcur_get_btr_cur(pcur),
FALSE, mtr);
FALSE, mtr);
ut_a(err == DB_SUCCESS);
#ifdef UNIV_IBUF_DEBUG
......@@ -2393,8 +2472,11 @@ ibuf_merge_or_delete_for_page(
dulint max_trx_id;
mtr_t mtr;
/* TODO: get MySQL type info to use in ibuf_insert_to_index_page */
if (srv_force_recovery >= SRV_FORCE_NO_IBUF_MERGE) {
return;
}
#ifdef UNIV_LOG_DEBUG
if (space % 2 != 0) {
......@@ -2451,16 +2533,13 @@ loop:
if (page) {
success = buf_page_get_known_nowait(RW_X_LATCH, page,
BUF_KEEP_OLD,
#ifdef UNIV_SYNC_DEBUG
IB__FILE__, __LINE__,
#endif
&mtr);
ut_a(success);
buf_page_dbg_add_level(page, SYNC_TREE_NODE);
}
/* Position pcur in the insert buffer at the first entry for this
index page */
btr_pcur_open_on_user_rec(ibuf_data->index, search_tuple, PAGE_CUR_GE,
......@@ -2476,7 +2555,7 @@ loop:
ut_ad(btr_pcur_is_on_user_rec(&pcur, &mtr));
ibuf_rec = btr_pcur_get_rec(&pcur);
/* Check if the entry is for this index page */
if (ibuf_rec_get_page_no(ibuf_rec) != page_no) {
......@@ -2508,13 +2587,13 @@ loop:
/ IBUF_PAGE_SIZE_PER_FREE_SPACE);
#endif
ibuf_insert_to_index_page(entry, page, &mtr);
n_inserts++;
}
n_inserts++;
/* Delete the record from ibuf */
closed = ibuf_delete_rec(space, page_no, &pcur, &mtr);
closed = ibuf_delete_rec(space, page_no, &pcur, search_tuple,
&mtr);
if (closed) {
/* Deletion was pessimistic and mtr was committed:
we start from the beginning again */
......@@ -2524,6 +2603,7 @@ loop:
if (btr_pcur_is_after_last_on_page(&pcur, &mtr)) {
mtr_commit(&mtr);
btr_pcur_close(&pcur);
goto loop;
}
......@@ -2619,8 +2699,6 @@ ibuf_print(void)
#endif
mutex_enter(&ibuf_mutex);
printf("Ibuf size %lu max size %lu\n", ibuf->size, ibuf->max_size);
data = UT_LIST_GET_FIRST(ibuf->data_list);
while (data) {
......
innobase/include/btr0cur.h
View file @ 1d7747aa
......@@ -188,6 +188,22 @@ btr_cur_pessimistic_insert(
que_thr_t* thr, /* in: query thread or NULL */
mtr_t* mtr); /* in: mtr */
/*****************************************************************
Updates a secondary index record when the update causes no size
changes in its fields. The only case when this function is currently
called is that in a char field characters change to others which
are identified in the collation order. */
ulint
btr_cur_update_sec_rec_in_place(
/*============================*/
/* out: DB_SUCCESS or error number */
btr_cur_t* cursor, /* in: cursor on the record to update;
cursor stays valid and positioned on the
same record */
upd_t* update, /* in: update vector */
que_thr_t* thr, /* in: query thread */
mtr_t* mtr); /* in: mtr */
/*****************************************************************
Updates a record when the update causes no size changes in its fields. */
ulint
......@@ -411,12 +427,13 @@ btr_estimate_n_rows_in_range(
dtuple_t* tuple2, /* in: range end, may also be empty tuple */
ulint mode2); /* in: search mode for range end */
/***********************************************************************
Estimates the number of different key values in a given index. */
Estimates the number of different key values in a given index, for
each n-column prefix of the index where n <= dict_index_get_n_unique(index).
The estimates are stored in the array index->stat_n_diff_key_vals. */
ulint
void
btr_estimate_number_of_different_key_vals(
/*======================================*/
/* out: estimated number of key values */
dict_index_t* index); /* in: index */
/***********************************************************************
Marks not updated extern fields as not-owned by this record. The ownership
......
innobase/include/btr0pcur.h
View file @ 1d7747aa
......@@ -19,9 +19,15 @@ Created 2/23/1996 Heikki Tuuri
#include "btr0types.h"
/* Relative positions for a stored cursor position */
#define BTR_PCUR_ON 1
#define BTR_PCUR_BEFORE 2
#define BTR_PCUR_AFTER 3
#define BTR_PCUR_ON 1
#define BTR_PCUR_BEFORE 2
#define BTR_PCUR_AFTER 3
/* Note that if the tree is not empty, btr_pcur_store_position does not
use the following, but only uses the above three alternatives, where the
position is stored relative to a specific record: this makes implementation
of a scroll cursor easier */
#define BTR_PCUR_BEFORE_FIRST_IN_TREE 4 /* in an empty tree */
#define BTR_PCUR_AFTER_LAST_IN_TREE 5 /* in an empty tree */
/******************************************************************
Allocates memory for a persistent cursor object and initializes the cursor. */
......@@ -170,34 +176,16 @@ btr_pcur_close(
/******************************************************************
The position of the cursor is stored by taking an initial segment of the
record the cursor is positioned on, before, or after, and copying it to the
cursor data structure. NOTE that the page where the cursor is positioned
must not be empty! */
cursor data structure, or just setting a flag if the cursor id before the
first in an EMPTY tree, or after the last in an EMPTY tree. NOTE that the
page where the cursor is positioned must not be empty if the index tree is
not totally empty! */
void
btr_pcur_store_position(
/*====================*/
btr_pcur_t* cursor, /* in: persistent cursor */
mtr_t* mtr); /* in: mtr */
/******************************************************************
If the latch mode of the cursor is BTR_LEAF_SEARCH or BTR_LEAF_MODIFY,
releases the page latch and bufferfix reserved by the cursor.
NOTE! In the case of BTR_LEAF_MODIFY, there should not exist changes
made by the current mini-transaction to the data protected by the
cursor latch, as then the latch must not be released until mtr_commit. */
void
btr_pcur_release_leaf(
/*==================*/
btr_pcur_t* cursor, /* in: persistent cursor */
mtr_t* mtr); /* in: mtr */
/*************************************************************
Gets the rel_pos field for a cursor whose position has been stored. */
UNIV_INLINE
ulint
btr_pcur_get_rel_pos(
/*=================*/
/* out: BTR_PCUR_ON, ... */
btr_pcur_t* cursor);/* in: persistent cursor */
/******************************************************************
Restores the stored position of a persistent cursor bufferfixing the page and
obtaining the specified latches. If the cursor position was saved when the
......@@ -207,7 +195,9 @@ to the last record LESS OR EQUAL to the stored record;
the last record LESS than the user record which was the successor of the page
infimum;
(3) cursor was positioned on the page supremum: restores to the first record
GREATER than the user record which was the predecessor of the supremum. */
GREATER than the user record which was the predecessor of the supremum.
(4) cursor was positioned before the first or after the last in an empty tree:
restores to before first or after the last in the tree. */
ibool
btr_pcur_restore_position(
......@@ -220,6 +210,26 @@ btr_pcur_restore_position(
ulint latch_mode, /* in: BTR_SEARCH_LEAF, ... */
btr_pcur_t* cursor, /* in: detached persistent cursor */
mtr_t* mtr); /* in: mtr */
/******************************************************************
If the latch mode of the cursor is BTR_LEAF_SEARCH or BTR_LEAF_MODIFY,
releases the page latch and bufferfix reserved by the cursor.
NOTE! In the case of BTR_LEAF_MODIFY, there should not exist changes
made by the current mini-transaction to the data protected by the
cursor latch, as then the latch must not be released until mtr_commit. */
void
btr_pcur_release_leaf(
/*==================*/
btr_pcur_t* cursor, /* in: persistent cursor */
mtr_t* mtr); /* in: mtr */
/*************************************************************
Gets the rel_pos field for a cursor whose position has been stored. */
UNIV_INLINE
ulint
btr_pcur_get_rel_pos(
/*=================*/
/* out: BTR_PCUR_ON, ... */
btr_pcur_t* cursor);/* in: persistent cursor */
/*************************************************************
Sets the mtr field for a pcur. */
UNIV_INLINE
......@@ -458,7 +468,7 @@ struct btr_pcur_struct{
ulint search_mode; /* PAGE_CUR_G, ... */
/*-----------------------------*/
/* NOTE that the following fields may possess dynamically allocated
memory, which should be freed if not needed anymore! */
memory which should be freed if not needed anymore! */
mtr_t* mtr; /* NULL, or this field may contain
a mini-transaction which holds the
......
innobase/include/btr0pcur.ic
View file @ 1d7747aa
......@@ -19,8 +19,8 @@ btr_pcur_get_rel_pos(
ut_ad(cursor);
ut_ad(cursor->old_rec);
ut_ad(cursor->old_stored == BTR_PCUR_OLD_STORED);
ut_ad((cursor->pos_state == BTR_PCUR_WAS_POSITIONED)
|| (cursor->pos_state == BTR_PCUR_IS_POSITIONED));
ut_ad(cursor->pos_state == BTR_PCUR_WAS_POSITIONED
|| cursor->pos_state == BTR_PCUR_IS_POSITIONED);
return(cursor->rel_pos);
}
......
innobase/include/btr0sea.h
View file @ 1d7747aa
......@@ -262,6 +262,12 @@ index */
#define BTR_SEARCH_ON_HASH_LIMIT 3
/* We do this many searches before trying to keep the search latch over calls
from MySQL. If we notice someone waiting for the latch, we again set this
much timeout. This is to reduce contention. */
#define BTR_SEA_TIMEOUT 10000
#ifndef UNIV_NONINL
#include "btr0sea.ic"
#endif
......
innobase/include/buf0buf.h
View file @ 1d7747aa
......@@ -116,53 +116,30 @@ buf_frame_copy(
NOTE! The following macros should be used instead of buf_page_get_gen,
to improve debugging. Only values RW_S_LATCH and RW_X_LATCH are allowed
in LA! */
#ifdef UNIV_SYNC_DEBUG
#define buf_page_get(SP, OF, LA, MTR) buf_page_get_gen(\
SP, OF, LA, NULL,\
BUF_GET, IB__FILE__, __LINE__, MTR)
#else
#define buf_page_get(SP, OF, LA, MTR) buf_page_get_gen(\
SP, OF, LA, NULL,\
BUF_GET, MTR)
#endif
/******************************************************************
Use these macros to bufferfix a page with no latching. Remember not to
read the contents of the page unless you know it is safe. Do not modify
the contents of the page! We have separated this case, because it is
error-prone programming not to set a latch, and it should be used
with care. */
#ifdef UNIV_SYNC_DEBUG
#define buf_page_get_with_no_latch(SP, OF, MTR) buf_page_get_gen(\
SP, OF, RW_NO_LATCH, NULL,\
BUF_GET_NO_LATCH, IB__FILE__, __LINE__, MTR)
#else
#define buf_page_get_with_no_latch(SP, OF, MTR) buf_page_get_gen(\
SP, OF, RW_NO_LATCH, NULL,\
BUF_GET_NO_LATCH, MTR)
#endif
/******************************************************************
NOTE! The following macros should be used instead of buf_page_get_gen, to
improve debugging. Only values RW_S_LATCH and RW_X_LATCH are allowed as LA! */
#ifdef UNIV_SYNC_DEBUG
#define buf_page_get_nowait(SP, OF, LA, MTR) buf_page_get_gen(\
SP, OF, LA, NULL,\
BUF_GET_NOWAIT, IB__FILE__, __LINE__, MTR)
#else
#define buf_page_get_nowait(SP, OF, LA, MTR) buf_page_get_gen(\
SP, OF, LA, NULL,\
BUF_GET_NOWAIT, MTR)
#endif
/******************************************************************
NOTE! The following macros should be used instead of
buf_page_optimistic_get_func, to improve debugging. Only values RW_S_LATCH and
RW_X_LATCH are allowed as LA! */
#ifdef UNIV_SYNC_DEBUG
#define buf_page_optimistic_get(LA, G, MC, MTR) buf_page_optimistic_get_func(\
LA, G, MC, IB__FILE__, __LINE__, MTR)
#else
#define buf_page_optimistic_get(LA, G, MC, MTR) buf_page_optimistic_get_func(\
LA, G, MC, MTR)
#endif
/************************************************************************
This is the general function used to get optimistic access to a database
page. */
......@@ -175,10 +152,8 @@ buf_page_optimistic_get_func(
buf_frame_t* guess, /* in: guessed frame */
dulint modify_clock,/* in: modify clock value if mode is
..._GUESS_ON_CLOCK */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: file name */
ulint line, /* in: line where called */
#endif
mtr_t* mtr); /* in: mini-transaction */
/************************************************************************
Tries to get the page, but if file io is required, releases all latches
......@@ -210,10 +185,8 @@ buf_page_get_known_nowait(
ulint rw_latch,/* in: RW_S_LATCH, RW_X_LATCH */
buf_frame_t* guess, /* in: the known page frame */
ulint mode, /* in: BUF_MAKE_YOUNG or BUF_KEEP_OLD */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: file name */
ulint line, /* in: line where called */
#endif
mtr_t* mtr); /* in: mini-transaction */
/************************************************************************
This is the general function used to get access to a database page. */
......@@ -228,10 +201,8 @@ buf_page_get_gen(
buf_frame_t* guess, /* in: guessed frame or NULL */
ulint mode, /* in: BUF_GET, BUF_GET_IF_IN_POOL,
BUF_GET_NO_LATCH */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: file name */
ulint line, /* in: line where called */
#endif
mtr_t* mtr); /* in: mini-transaction */
/************************************************************************
Initializes a page to the buffer buf_pool. The page is usually not read
......@@ -455,6 +426,13 @@ Validates the buffer pool data structure. */
ibool
buf_validate(void);
/*==============*/
/************************************************************************
Prints a page to stderr. */
void
buf_page_print(
/*===========*/
byte* read_buf); /* in: a database page */
/*************************************************************************
Prints info of the buffer pool data structure. */
......@@ -462,6 +440,12 @@ void
buf_print(void);
/*===========*/
/*************************************************************************
Returns the number of pending buf pool ios. */
ulint
buf_get_n_pending_ios(void);
/*=======================*/
/*************************************************************************
Prints info of the buffer i/o. */
void
......@@ -760,6 +744,8 @@ struct buf_pool_struct{
byte* frame_zero; /* pointer to the first buffer frame:
this may differ from frame_mem, because
this is aligned by the frame size */
byte* high_end; /* pointer to the end of the
buffer pool */
buf_block_t* blocks; /* array of buffer control blocks */
ulint max_size; /* number of control blocks ==
maximum pool size in pages */
......@@ -767,6 +753,9 @@ struct buf_pool_struct{
hash_table_t* page_hash; /* hash table of the file pages */
ulint n_pend_reads; /* number of pending read operations */
time_t last_printout_time; /* when buf_print was last time
called */
ulint n_pages_read; /* number read operations */
ulint n_pages_written;/* number write operations */
ulint n_pages_created;/* number of pages created in the pool
......@@ -782,6 +771,9 @@ struct buf_pool_struct{
hit rate */
ulint n_pages_read_old;/* n_pages_read when buf_print was
last time called */
ulint n_pages_written_old;/* number write operations */
ulint n_pages_created_old;/* number of pages created in
the pool with no read */
/* 2. Page flushing algorithm fields */
UT_LIST_BASE_NODE_T(buf_block_t) flush_list;
......
innobase/include/buf0buf.ic
View file @ 1d7747aa
......@@ -486,11 +486,7 @@ buf_block_buf_fix_inc_debug(
{
ibool ret;
ret = rw_lock_s_lock_func_nowait(&(block->debug_latch)
#ifdef UNIV_SYNC_DEBUG
,file, line
#endif
);
ret = rw_lock_s_lock_func_nowait(&(block->debug_latch), file, line);
ut_ad(ret == TRUE);
......@@ -557,9 +553,7 @@ buf_page_get_release_on_io(
frame = buf_page_get_gen(space, offset, rw_latch, guess,
BUF_GET_IF_IN_POOL,
#ifdef UNIV_SYNC_DEBUG
IB__FILE__, __LINE__,
#endif
mtr);
if (frame != NULL) {
......
innobase/include/data0data.h
View file @ 1d7747aa
......@@ -116,8 +116,8 @@ dfield_copy(
Tests if data length and content is equal for two dfields. */
UNIV_INLINE
ibool
dfield_datas_are_equal(
/*===================*/
dfield_datas_are_binary_equal(
/*==========================*/
/* out: TRUE if equal */
dfield_t* field1, /* in: field */
dfield_t* field2);/* in: field */
......@@ -125,8 +125,8 @@ dfield_datas_are_equal(
Tests if dfield data length and content is equal to the given. */
UNIV_INLINE
ibool
dfield_data_is_equal(
/*=================*/
dfield_data_is_binary_equal(
/*========================*/
/* out: TRUE if equal */
dfield_t* field, /* in: field */
ulint len, /* in: data length or UNIV_SQL_NULL */
......@@ -230,14 +230,18 @@ dtuple_get_data_size(
dtuple_t* tuple); /* in: typed data tuple */
/****************************************************************
Returns TRUE if lengths of two dtuples are equal and respective data fields
in them are equal. */
UNIV_INLINE
in them are equal when compared with collation in char fields (not as binary
strings). */
ibool
dtuple_datas_are_equal(
/*===================*/
/* out: TRUE if length and datas are equal */
dtuple_datas_are_ordering_equal(
/*============================*/
/* out: TRUE if length and fieds are equal
when compared with cmp_data_data:
NOTE: in character type fields some letters
are identified with others! (collation) */
dtuple_t* tuple1, /* in: tuple 1 */
dtuple_t* tuple2); /* in: tuple 2 */
dtuple_t* tuple2);/* in: tuple 2 */
/****************************************************************
Folds a prefix given as the number of fields of a tuple. */
UNIV_INLINE
......@@ -447,7 +451,7 @@ struct dfield_struct{
struct dtuple_struct {
ulint info_bits; /* info bits of an index record:
default is 0; this field is used
the default is 0; this field is used
if an index record is built from
a data tuple */
ulint n_fields; /* number of fields in dtuple */
......
innobase/include/data0data.ic
View file @ 1d7747aa
......@@ -133,8 +133,8 @@ dfield_copy(
Tests if data length and content is equal for two dfields. */
UNIV_INLINE
ibool
dfield_datas_are_equal(
/*===================*/
dfield_datas_are_binary_equal(
/*==========================*/
/* out: TRUE if equal */
dfield_t* field1, /* in: field */
dfield_t* field2) /* in: field */
......@@ -157,8 +157,8 @@ dfield_datas_are_equal(
Tests if dfield data length and content is equal to the given. */
UNIV_INLINE
ibool
dfield_data_is_equal(
/*=================*/
dfield_data_is_binary_equal(
/*========================*/
/* out: TRUE if equal */
dfield_t* field, /* in: field */
ulint len, /* in: data length or UNIV_SQL_NULL */
......@@ -169,8 +169,7 @@ dfield_data_is_equal(
return(FALSE);
}
if ((len != UNIV_SQL_NULL)
&& (0 != ut_memcmp(field->data, data, len))) {
if (len != UNIV_SQL_NULL && 0 != ut_memcmp(field->data, data, len)) {
return(FALSE);
}
......@@ -342,65 +341,6 @@ dtuple_get_data_size(
return(sum);
}
/****************************************************************
Returns TRUE if lengths of two dtuples are equal and respective data fields
in them are equal. */
UNIV_INLINE
ibool
dtuple_datas_are_equal(
/*===================*/
/* out: TRUE if length and datas are equal */
dtuple_t* tuple1, /* in: tuple 1 */
dtuple_t* tuple2) /* in: tuple 2 */
{
dfield_t* field1;
dfield_t* field2;
ulint n_fields;
byte* data1;
byte* data2;
ulint len1;
ulint len2;
ulint i;
ut_ad(tuple1 && tuple2);
ut_ad(tuple1->magic_n = DATA_TUPLE_MAGIC_N);
ut_ad(tuple2->magic_n = DATA_TUPLE_MAGIC_N);
ut_ad(dtuple_check_typed(tuple1));
ut_ad(dtuple_check_typed(tuple2));
n_fields = dtuple_get_n_fields(tuple1);
if (n_fields != dtuple_get_n_fields(tuple2)) {
return(FALSE);
}
for (i = 0; i < n_fields; i++) {
field1 = dtuple_get_nth_field(tuple1, i);
data1 = (byte*) dfield_get_data(field1);
len1 = dfield_get_len(field1);
field2 = dtuple_get_nth_field(tuple2, i);
data2 = (byte*) dfield_get_data(field2);
len2 = dfield_get_len(field2);
if (len1 != len2) {
return(FALSE);
}
if (len1 != UNIV_SQL_NULL) {
if (ut_memcmp(data1, data2, len1) != 0) {
return(FALSE);
}
}
}
return(TRUE);
}
/***********************************************************************
Sets types of fields binary in a tuple. */
UNIV_INLINE
......
innobase/include/data0type.h
View file @ 1d7747aa
......@@ -124,17 +124,6 @@ dtype_get_pad_char(
/* out: padding character code, or
ULINT_UNDEFINED if no padding specified */
dtype_t* type); /* in: typeumn */
/*************************************************************************
Transforms the character code so that it is ordered appropriately
for the language. */
UNIV_INLINE
ulint
dtype_collate(
/*==========*/
/* out: padding character */
dtype_t* type, /* in: type */
ulint code); /* in: character code stored in database
record */
/***************************************************************************
Returns the size of a fixed size data type, 0 if not a fixed size type. */
UNIV_INLINE
......
innobase/include/data0type.ic
View file @ 1d7747aa
......@@ -120,23 +120,6 @@ dtype_get_pad_char(
return(ULINT_UNDEFINED);
}
/*************************************************************************
Transforms the character code so that it is ordered appropriately for the
language. */
UNIV_INLINE
ulint
dtype_collate(
/*==========*/
/* out: collation order position */
dtype_t* type, /* in: type */
ulint code) /* in: character code stored in database
record */
{
ut_ad((type->mtype == DATA_CHAR) || (type->mtype == DATA_VARCHAR));
return(toupper(code));
}
/**************************************************************************
Stores to a type the information which determines its alphabetical
ordering. */
......@@ -198,6 +181,10 @@ dtype_get_fixed_size(
case DATA_SYS: if (type->prtype == DATA_ROW_ID) {
return(DATA_ROW_ID_LEN);
} else if (type->prtype == DATA_TRX_ID) {
return(DATA_TRX_ID_LEN);
} else if (type->prtype == DATA_ROLL_PTR) {
return(DATA_ROLL_PTR_LEN);
} else {
return(0);
}
......
innobase/include/db0err.h
View file @ 1d7747aa
......@@ -27,12 +27,21 @@ Created 5/24/1996 Heikki Tuuri
#define DB_CLUSTER_NOT_FOUND 30
#define DB_TABLE_NOT_FOUND 31
#define DB_MUST_GET_MORE_FILE_SPACE 32 /* the database has to be stopped
and restrated with more file space */
and restarted with more file space */
#define DB_TABLE_IS_BEING_USED 33
#define DB_TOO_BIG_RECORD 34 /* a record in an index would become
bigger than 1/2 free space in a page
frame */
#define DB_LOCK_WAIT_TIMEOUT 35 /* lock wait lasted too long */
#define DB_NO_REFERENCED_ROW 36 /* referenced key value not found
for a foreign key in an insert or
update of a row */
#define DB_ROW_IS_REFERENCED 37 /* cannot delete or update a row
because it contains a key value
which is referenced */
#define DB_CANNOT_ADD_CONSTRAINT 38 /* adding a foreign key constraint
to a table failed */
/* The following are partial failure codes */
#define DB_FAIL 1000
#define DB_OVERFLOW 1001
......
innobase/include/dict0crea.h
View file @ 1d7747aa
......@@ -71,6 +71,24 @@ dict_drop_index_tree(
rec_t* rec, /* in: record in the clustered index of SYS_INDEXES
table */
mtr_t* mtr); /* in: mtr having the latch on the record page */
/********************************************************************
Creates the foreign key constraints system tables inside InnoDB
at database creation or database start if they are not found or are
not of the right form. */
ulint
dict_create_or_check_foreign_constraint_tables(void);
/*================================================*/
/* out: DB_SUCCESS or error code */
/************************************************************************
Adds foreign key definitions to data dictionary tables in the database. */
ulint
dict_create_add_foreigns_to_dictionary(
/*===================================*/
/* out: error code or DB_SUCCESS */
dict_table_t* table, /* in: table */
trx_t* trx); /* in: transaction */
/* Table create node structure */
......
innobase/include/dict0dict.h
View file @ 1d7747aa
......@@ -138,6 +138,38 @@ dict_table_rename_in_cache(
dict_table_t* table, /* in: table */
char* new_name); /* in: new name */
/**************************************************************************
Adds a foreign key constraint object to the dictionary cache. May free
the object if there already is an object with the same identifier in.
At least one of foreign table or referenced table must already be in
the dictionary cache! */
ulint
dict_foreign_add_to_cache(
/*======================*/
/* out: DB_SUCCESS or error code */
dict_foreign_t* foreign); /* in, own: foreign key constraint */
/*************************************************************************
Scans a table create SQL string and adds to the data dictionary
the foreign key constraints declared in the string. This function
should be called after the indexes for a table have been created.
Each foreign key constraint must be accompanied with indexes in
bot participating tables. The indexes are allowed to contain more
fields than mentioned in the constraint. */
ulint
dict_create_foreign_constraints(
/*============================*/
/* out: error code or DB_SUCCESS */
trx_t* trx, /* in: transaction */
char* sql_string, /* in: table create statement where
foreign keys are declared like:
FOREIGN KEY (a, b) REFERENCES table2(c, d),
table2 can be written also with the database
name before it: test.table2; the default
database id the database of parameter name */
char* name); /* in: table full name in the normalized form
database_name/table_name */
/**************************************************************************
Returns a table object and memoryfixes it. NOTE! This is a high-level
function to be used mainly from outside the 'dict' directory. Inside this
directory dict_table_get_low is usually the appropriate function. */
......@@ -174,6 +206,14 @@ dict_table_release(
/*===============*/
dict_table_t* table); /* in: table to be released */
/**************************************************************************
Checks if a table is in the dictionary cache. */
UNIV_INLINE
dict_table_t*
dict_table_check_if_in_cache_low(
/*==============================*/
/* out: table, NULL if not found */
char* table_name); /* in: table name */
/**************************************************************************
Gets a table; loads it to the dictionary cache if necessary. A low-level
function. */
UNIV_INLINE
......@@ -208,6 +248,13 @@ dict_table_print(
/*=============*/
dict_table_t* table); /* in: table */
/**************************************************************************
Prints a table data. */
void
dict_table_print_low(
/*=================*/
dict_table_t* table); /* in: table */
/**************************************************************************
Prints a table data when we know the table name. */
void
......@@ -319,6 +366,16 @@ dict_table_copy_types(
dtuple_t* tuple, /* in: data tuple */
dict_table_t* table); /* in: index */
/**************************************************************************
Looks for an index with the given id. NOTE that we do not reserve
the dictionary mutex: this function is for emergency purposes like
printing info of a corrupt database page! */
dict_index_t*
dict_index_find_on_id_low(
/*======================*/
/* out: index or NULL if not found from cache */
dulint id); /* in: index id */
/**************************************************************************
Adds an index to dictionary cache. */
ibool
......@@ -640,6 +697,23 @@ dict_tree_get_space_reserve(
reserved for updates */
dict_tree_t* tree); /* in: a tree */
/*************************************************************************
Calculates the minimum record length in an index. */
ulint
dict_index_calc_min_rec_len(
/*========================*/
dict_index_t* index); /* in: index */
/*************************************************************************
Calculates new estimates for table and index statistics. The statistics
are used in query optimization. */
void
dict_update_statistics_low(
/*=======================*/
dict_table_t* table, /* in: table */
ibool has_dict_mutex);/* in: TRUE if the caller has the
dictionary mutex */
/*************************************************************************
Calculates new estimates for table and index statistics. The statistics
are used in query optimization. */
......@@ -661,7 +735,8 @@ dict_mutex_exit_for_mysql(void);
/*===========================*/
extern dict_sys_t* dict_sys; /* the dictionary system */
extern dict_sys_t* dict_sys; /* the dictionary system */
extern rw_lock_t dict_foreign_key_check_lock;
/* Dictionary system struct */
struct dict_sys_struct{
......
innobase/include/dict0dict.ic
View file @ 1d7747aa
......@@ -532,12 +532,11 @@ dict_tree_get_space_reserve(
}
/**************************************************************************
Gets a table; loads it to the dictionary cache if necessary. A low-level
function. */
Checks if a table is in the dictionary cache. */
UNIV_INLINE
dict_table_t*
dict_table_get_low(
/*===============*/
dict_table_check_if_in_cache_low(
/*==============================*/
/* out: table, NULL if not found */
char* table_name) /* in: table name */
{
......@@ -552,6 +551,26 @@ dict_table_get_low(
HASH_SEARCH(name_hash, dict_sys->table_hash, table_fold, table,
ut_strcmp(table->name, table_name) == 0);
return(table);
}
/**************************************************************************
Gets a table; loads it to the dictionary cache if necessary. A low-level
function. */
UNIV_INLINE
dict_table_t*
dict_table_get_low(
/*===============*/
/* out: table, NULL if not found */
char* table_name) /* in: table name */
{
dict_table_t* table;
ut_ad(table_name);
ut_ad(mutex_own(&(dict_sys->mutex)));
table = dict_table_check_if_in_cache_low(table_name);
if (table == NULL) {
table = dict_load_table(table_name);
}
......@@ -603,6 +622,7 @@ dict_table_get_on_id_low(
dict_table_t* table;
ulint fold;
ut_ad(mutex_own(&(dict_sys->mutex)));
UT_NOT_USED(trx);
/* Look for the table name in the hash table */
......
innobase/include/dict0load.h
View file @ 1d7747aa
......@@ -14,9 +14,20 @@ Created 4/24/1996 Heikki Tuuri
#include "dict0types.h"
#include "ut0byte.h"
/************************************************************************
Finds the first table name in the given database. */
char*
dict_get_first_table_name_in_db(
/*============================*/
/* out, own: table name, NULL if does not exist;
the caller must free the memory in the string! */
char* name); /* in: database name which ends to '/' */
/************************************************************************
Loads a table definition and also all its index definitions, and also
the cluster definition, if the table is a member in a cluster. */
the cluster definition if the table is a member in a cluster. Also loads
all foreign key constraints where the foreign key is in the table or where
a foreign key references columns in this table. */
dict_table_t*
dict_load_table(
......@@ -40,6 +51,25 @@ void
dict_load_sys_table(
/*================*/
dict_table_t* table); /* in: system table */
/***************************************************************************
Loads foreign key constraints where the table is either the foreign key
holder or where the table is referenced by a foreign key. Adds these
constraints to the data dictionary. Note that we know that the dictionary
cache already contains all constraints where the other relevant table is
already in the dictionary cache. */
ulint
dict_load_foreigns(
/*===============*/
/* out: DB_SUCCESS or error code */
char* table_name); /* in: table name */
/************************************************************************
Prints to the standard output information on all tables found in the data
dictionary system table. */
void
dict_print(void);
/*============*/
#ifndef UNIV_NONINL
......
innobase/include/dict0mem.h
View file @ 1d7747aa
......@@ -123,6 +123,13 @@ dict_mem_index_free(
/*================*/
dict_index_t* index); /* in: index */
/**************************************************************************
Creates and initializes a foreign constraint memory object. */
dict_foreign_t*
dict_mem_foreign_create(void);
/*=========================*/
/* out, own: foreign constraint struct */
/**************************************************************************
Creates a procedure memory object. */
dict_proc_t*
......@@ -221,15 +228,56 @@ struct dict_index_struct{
dictionary cache */
btr_search_t* search_info; /* info used in optimistic searches */
/*----------------------*/
ulint stat_n_diff_key_vals;
ib_longlong* stat_n_diff_key_vals;
/* approximate number of different key values
for this index; we periodically calculate
new estimates */
for this index, for each n-column prefix
where n <= dict_get_n_unique(index); we
periodically calculate new estimates */
ulint stat_index_size;
/* approximate index size in database pages */
ulint stat_n_leaf_pages;
/* approximate number of leaf pages in the
index tree */
ulint magic_n;/* magic number */
};
/* Data structure for a foreign key constraint; an example:
FOREIGN KEY (A, B) REFERENCES TABLE2 (C, D) */
struct dict_foreign_struct{
mem_heap_t* heap; /* this object is allocated from
this memory heap */
char* id; /* id of the constraint as a
null-terminated string */
char* foreign_table_name;/* foreign table name */
dict_table_t* foreign_table; /* table where the foreign key is */
char** foreign_col_names;/* names of the columns in the
foreign key */
char* referenced_table_name;/* referenced table name */
dict_table_t* referenced_table;/* table where the referenced key
is */
char** referenced_col_names;/* names of the referenced
columns in the referenced table */
ulint n_fields; /* number of indexes' first fields
for which the the foreign key
constraint is defined: we allow the
indexes to contain more fields than
mentioned in the constraint, as long
as the first fields are as mentioned */
dict_index_t* foreign_index; /* foreign index; we require that
both tables contain explicitly defined
indexes for the constraint: InnoDB
does not generate new indexes
implicitly */
dict_index_t* referenced_index;/* referenced index */
UT_LIST_NODE_T(dict_foreign_t)
foreign_list; /* list node for foreign keys of the
table */
UT_LIST_NODE_T(dict_foreign_t)
referenced_list;/* list node for referenced keys of the
table */
};
#define DICT_INDEX_MAGIC_N 76789786
/* Data structure for a database table */
......@@ -247,6 +295,13 @@ struct dict_table_struct{
dict_col_t* cols; /* array of column descriptions */
UT_LIST_BASE_NODE_T(dict_index_t)
indexes; /* list of indexes of the table */
UT_LIST_BASE_NODE_T(dict_foreign_t)
foreign_list;/* list of foreign key constraints
in the table; these refer to columns
in other tables */
UT_LIST_BASE_NODE_T(dict_foreign_t)
referenced_list;/* list of foreign key constraints
which refer to this table */
UT_LIST_NODE_T(dict_table_t)
table_LRU; /* node of the LRU list of tables */
ulint mem_fix;/* count of how many times the table
......@@ -254,6 +309,13 @@ struct dict_table_struct{
currently NOT used */
ibool cached; /* TRUE if the table object has been added
to the dictionary cache */
lock_t* auto_inc_lock;/* a buffer for an auto-inc lock
for this table: we allocate the memory here
so that individual transactions can get it
and release it without a need to allocate
space from the lock heap of the trx:
otherwise the lock heap would grow rapidly
if we do a large insert from a select */
UT_LIST_BASE_NODE_T(lock_t)
locks; /* list of locks on the table */
/*----------------------*/
......@@ -278,7 +340,7 @@ struct dict_table_struct{
forget about value TRUE if it has to reload
the table definition from disk */
/*----------------------*/
ulint stat_n_rows;
ib_longlong stat_n_rows;
/* approximate number of rows in the table;
we periodically calculate new estimates */
ulint stat_clustered_index_size;
......
innobase/include/dict0types.h
View file @ 1d7747aa
......@@ -16,6 +16,7 @@ typedef struct dict_index_struct dict_index_t;
typedef struct dict_tree_struct dict_tree_t;
typedef struct dict_table_struct dict_table_t;
typedef struct dict_proc_struct dict_proc_t;
typedef struct dict_foreign_struct dict_foreign_t;
/* A cluster object is a table object with the type field set to
DICT_CLUSTERED */
......
innobase/include/fil0fil.h
View file @ 1d7747aa
......@@ -76,6 +76,9 @@ extern fil_addr_t fil_addr_null;
#define FIL_TABLESPACE 501
#define FIL_LOG 502
extern ulint fil_n_pending_log_flushes;
extern ulint fil_n_pending_tablespace_flushes;
/***********************************************************************
Reserves a right to open a single file. The right must be released with
fil_release_right_to_open. */
......
innobase/include/ibuf0ibuf.h
View file @ 1d7747aa
......@@ -226,6 +226,21 @@ ibuf_contract(
issued read with the highest tablespace address
to complete */
/*************************************************************************
Contracts insert buffer trees by reading pages to the buffer pool. */
ulint
ibuf_contract_for_n_pages(
/*======================*/
/* out: a lower limit for the combined size in bytes
of entries which will be merged from ibuf trees to the
pages read, 0 if ibuf is empty */
ibool sync, /* in: TRUE if the caller wants to wait for the
issued read with the highest tablespace address
to complete */
ulint n_pages);/* in: try to read at least this many pages to
the buffer pool and merge the ibuf contents to
them */
/*************************************************************************
Parses a redo log record of an ibuf bitmap page init. */
byte*
......
innobase/include/lock0lock.h
View file @ 1d7747aa
......@@ -21,15 +21,13 @@ Created 5/7/1996 Heikki Tuuri
extern ibool lock_print_waits;
/*****************************************************************
Cancels a waiting record lock request and releases the waiting transaction
that requested it. NOTE: does NOT check if waiting lock requests behind this
one can now be granted! */
/*************************************************************************
Gets the size of a lock struct. */
void
lock_rec_cancel(
/*============*/
lock_t* lock); /* in: waiting record lock request */
ulint
lock_get_size(void);
/*===============*/
/* out: size in bytes */
/*************************************************************************
Creates the lock system at database start. */
......@@ -388,6 +386,14 @@ lock_is_on_table(
/* out: TRUE if there are lock(s) */
dict_table_t* table); /* in: database table in dictionary cache */
/*************************************************************************
Releases an auto-inc lock a transaction possibly has on a table.
Releases possible other transactions waiting for this lock. */
void
lock_table_unlock_auto_inc(
/*=======================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Releases transaction locks, and releases possible other transactions waiting
because of these locks. */
......@@ -396,6 +402,14 @@ lock_release_off_kernel(
/*====================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Cancels a waiting lock request and releases possible other transactions
waiting behind it. */
void
lock_cancel_waiting_and_release(
/*============================*/
lock_t* lock); /* in: waiting lock request */
/*************************************************************************
Resets all locks, both table and record locks, on a table to be dropped.
No lock is allowed to be a wait lock. */
......@@ -495,6 +509,8 @@ extern lock_sys_t* lock_sys;
#define LOCK_IX 3 /* intention exclusive */
#define LOCK_S 4 /* shared */
#define LOCK_X 5 /* exclusive */
#define LOCK_AUTO_INC 6 /* locks the auto-inc counter of a table
in an exclusive mode */
#define LOCK_MODE_MASK 0xF /* mask used to extract mode from the
type_mode field in a lock */
#define LOCK_TABLE 16 /* these type values should be so high that */
......
innobase/include/log0log.h
View file @ 1d7747aa
......@@ -659,6 +659,11 @@ struct log_struct{
mutex! */
ulint n_log_ios; /* number of log i/os initiated thus
far */
ulint n_log_ios_old; /* number of log i/o's at the
previous printout */
time_t last_printout_time;/* when log_print was last time
called */
/* Fields involved in checkpoints */
ulint max_modified_age_async;
/* when this recommended value for lsn
......
innobase/include/mtr0mtr.h
View file @ 1d7747aa
......@@ -203,20 +203,12 @@ mtr_read_dulint(
mtr_t* mtr); /* in: mini-transaction handle */
/*************************************************************************
This macro locks an rw-lock in s-mode. */
#ifdef UNIV_SYNC_DEBUG
#define mtr_s_lock(B, MTR) mtr_s_lock_func((B), IB__FILE__, __LINE__,\
(MTR))
#else
#define mtr_s_lock(B, MTR) mtr_s_lock_func((B), (MTR))
#endif
/*************************************************************************
This macro locks an rw-lock in x-mode. */
#ifdef UNIV_SYNC_DEBUG
#define mtr_x_lock(B, MTR) mtr_x_lock_func((B), IB__FILE__, __LINE__,\
(MTR))
#else
#define mtr_x_lock(B, MTR) mtr_x_lock_func((B), (MTR))
#endif
/*************************************************************************
NOTE! Use the macro above!
Locks a lock in s-mode. */
......@@ -225,10 +217,8 @@ void
mtr_s_lock_func(
/*============*/
rw_lock_t* lock, /* in: rw-lock */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: file name */
ulint line, /* in: line number */
#endif
mtr_t* mtr); /* in: mtr */
/*************************************************************************
NOTE! Use the macro above!
......@@ -238,10 +228,8 @@ void
mtr_x_lock_func(
/*============*/
rw_lock_t* lock, /* in: rw-lock */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: file name */
ulint line, /* in: line number */
#endif
mtr_t* mtr); /* in: mtr */
/*******************************************************
......
innobase/include/mtr0mtr.ic
View file @ 1d7747aa
......@@ -217,20 +217,14 @@ void
mtr_s_lock_func(
/*============*/
rw_lock_t* lock, /* in: rw-lock */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: file name */
ulint line, /* in: line number */
#endif
mtr_t* mtr) /* in: mtr */
{
ut_ad(mtr);
ut_ad(lock);
rw_lock_s_lock_func(lock
#ifdef UNIV_SYNC_DEBUG
,0, file, line
#endif
);
rw_lock_s_lock_func(lock, 0, file, line);
mtr_memo_push(mtr, lock, MTR_MEMO_S_LOCK);
}
......@@ -242,20 +236,14 @@ void
mtr_x_lock_func(
/*============*/
rw_lock_t* lock, /* in: rw-lock */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: file name */
ulint line, /* in: line number */
#endif
mtr_t* mtr) /* in: mtr */
{
ut_ad(mtr);
ut_ad(lock);
rw_lock_x_lock_func(lock, 0
#ifdef UNIV_SYNC_DEBUG
, file, line
#endif
);
rw_lock_x_lock_func(lock, 0, file, line);
mtr_memo_push(mtr, lock, MTR_MEMO_X_LOCK);
}
innobase/include/rem0cmp.h
View file @ 1d7747aa
......@@ -15,6 +15,32 @@ Created 7/1/1994 Heikki Tuuri
#include "dict0dict.h"
#include "rem0rec.h"
/*****************************************************************
Returns TRUE if two types are equal for comparison purposes. */
ibool
cmp_types_are_equal(
/*================*/
/* out: TRUE if the types are considered
equal in comparisons */
dtype_t* type1, /* in: type 1 */
dtype_t* type2); /* in: type 2 */
/*****************************************************************
This function is used to compare two data fields for which we know the
data type. */
UNIV_INLINE
int
cmp_data_data(
/*==========*/
/* out: 1, 0, -1, if data1 is greater, equal,
less than data2, respectively */
dtype_t* cur_type,/* in: data type of the fields */
byte* data1, /* in: data field (== a pointer to a memory
buffer) */
ulint len1, /* in: data field length or UNIV_SQL_NULL */
byte* data2, /* in: data field (== a pointer to a memory
buffer) */
ulint len2); /* in: data field length or UNIV_SQL_NULL */
/*****************************************************************
This function is used to compare two dfields where at least the first
has its data type field set. */
......
innobase/include/row0ins.h
View file @ 1d7747aa
......@@ -16,6 +16,28 @@ Created 4/20/1996 Heikki Tuuri
#include "trx0types.h"
#include "row0types.h"
/*******************************************************************
Checks if foreign key constraint fails for an index entry. Sets shared locks
which lock either the success or the failure of the constraint. NOTE that
the caller must have a shared latch on dict_foreign_key_check_lock. */
ulint
row_ins_check_foreign_constraint(
/*=============================*/
/* out: DB_SUCCESS, DB_LOCK_WAIT,
DB_NO_REFERENCED_ROW,
or DB_ROW_IS_REFERENCED */
ibool check_ref,/* in: TRUE If we want to check that
the referenced table is ok, FALSE if we
want to to check the foreign key table */
dict_foreign_t* foreign,/* in: foreign constraint; NOTE that the
tables mentioned in it must be in the
dictionary cache if they exist at all */
dict_table_t* table, /* in: if check_ref is TRUE, then the foreign
table, else the referenced table */
dict_index_t* index, /* in: index in table */
dtuple_t* entry, /* in: index entry for index */
que_thr_t* thr); /* in: query thread */
/*************************************************************************
Creates an insert node struct. */
......
innobase/include/row0mysql.h
View file @ 1d7747aa
......@@ -133,6 +133,26 @@ row_update_prebuilt_trx(
handle */
trx_t* trx); /* in: transaction handle */
/*************************************************************************
Unlocks an AUTO_INC type lock possibly reserved by trx. */
void
row_unlock_table_autoinc_for_mysql(
/*===============================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Sets an AUTO_INC type lock on the table mentioned in prebuilt. The
AUTO_INC lock gives exclusive access to the auto-inc counter of the
table. The lock is reserved only for the duration of an SQL statement.
It is not compatible with another AUTO_INC or exclusive lock on the
table. */
int
row_lock_table_autoinc_for_mysql(
/*=============================*/
/* out: error code or DB_SUCCESS */
row_prebuilt_t* prebuilt); /* in: prebuilt struct in the MySQL
table handle */
/*************************************************************************
Does an insert for MySQL. */
int
......@@ -211,6 +231,26 @@ row_create_index_for_mysql(
dict_index_t* index, /* in: index defintion */
trx_t* trx); /* in: transaction handle */
/*************************************************************************
Scans a table create SQL string and adds to the data dictionary
the foreign key constraints declared in the string. This function
should be called after the indexes for a table have been created.
Each foreign key constraint must be accompanied with indexes in
bot participating tables. The indexes are allowed to contain more
fields than mentioned in the constraint. */
int
row_table_add_foreign_constraints(
/*==============================*/
/* out: error code or DB_SUCCESS */
trx_t* trx, /* in: transaction */
char* sql_string, /* in: table create statement where
foreign keys are declared like:
FOREIGN KEY (a, b) REFERENCES table2(c, d),
table2 can be written also with the database
name before it: test.table2 */
char* name); /* in: table full name in the normalized form
database_name/table_name */
/*************************************************************************
Drops a table for MySQL. If the name of the dropped table ends to
characters INNODB_MONITOR, then this also stops printing of monitor
output by the master thread. */
......@@ -224,6 +264,15 @@ row_drop_table_for_mysql(
ibool has_dict_mutex);/* in: TRUE if the caller already owns the
dictionary system mutex */
/*************************************************************************
Drops a database for MySQL. */
int
row_drop_database_for_mysql(
/*========================*/
/* out: error code or DB_SUCCESS */
char* name, /* in: database name which ends to '/' */
trx_t* trx); /* in: transaction handle */
/*************************************************************************
Renames a table for MySQL. */
int
......
innobase/include/row0upd.h
View file @ 1d7747aa
......@@ -47,8 +47,7 @@ upd_get_nth_field(
upd_t* update, /* in: update vector */
ulint n); /* in: field position in update vector */
/*************************************************************************
Sets the clustered index field number to be updated by an update vector
field. */
Sets an index field number to be updated by an update vector field. */
UNIV_INLINE
void
upd_field_set_field_no(
......@@ -56,7 +55,7 @@ upd_field_set_field_no(
upd_field_t* upd_field, /* in: update vector field */
ulint field_no, /* in: field number in a clustered
index */
dict_index_t* index); /* in: clustered index */
dict_index_t* index); /* in: index */
/*************************************************************************
Writes into the redo log the values of trx id and roll ptr and enough info
to determine their positions within a clustered index record. */
......@@ -136,13 +135,27 @@ row_upd_rec_in_place(
rec_t* rec, /* in/out: record where replaced */
upd_t* update);/* in: update vector */
/*******************************************************************
Builds an update vector from those fields which in a secondary index entry
differ from a record that has the equal ordering fields. NOTE: we compare
the fields as binary strings! */
upd_t*
row_upd_build_sec_rec_difference_binary(
/*====================================*/
/* out, own: update vector of differing
fields */
dict_index_t* index, /* in: index */
dtuple_t* entry, /* in: entry to insert */
rec_t* rec, /* in: secondary index record */
mem_heap_t* heap); /* in: memory heap from which allocated */
/*******************************************************************
Builds an update vector from those fields, excluding the roll ptr and
trx id fields, which in an index entry differ from a record that has
the equal ordering fields. */
the equal ordering fields. NOTE: we compare the fields as binary strings! */
upd_t*
row_upd_build_difference(
/*=====================*/
row_upd_build_difference_binary(
/*============================*/
/* out, own: update vector of differing
fields, excluding roll ptr and trx id */
dict_index_t* index, /* in: clustered index */
......@@ -175,13 +188,16 @@ row_upd_clust_index_replace_new_col_vals(
/***************************************************************
Checks if an update vector changes an ordering field of an index record.
This function is fast if the update vector is short or the number of ordering
fields in the index is small. Otherwise, this can be quadratic. */
fields in the index is small. Otherwise, this can be quadratic.
NOTE: we compare the fields as binary strings! */
ibool
row_upd_changes_ord_field(
/*======================*/
row_upd_changes_ord_field_binary(
/*=============================*/
/* out: TRUE if update vector changes
an ordering field in the index record */
an ordering field in the index record;
NOTE: the fields are compared as binary
strings */
dtuple_t* row, /* in: old value of row, or NULL if the
row and the data values in update are not
known when this function is called, e.g., at
......@@ -191,11 +207,12 @@ row_upd_changes_ord_field(
/***************************************************************
Checks if an update vector changes an ordering field of an index record.
This function is fast if the update vector is short or the number of ordering
fields in the index is small. Otherwise, this can be quadratic. */
fields in the index is small. Otherwise, this can be quadratic.
NOTE: we compare the fields as binary strings! */
ibool
row_upd_changes_some_index_ord_field(
/*=================================*/
row_upd_changes_some_index_ord_field_binary(
/*========================================*/
/* out: TRUE if update vector may change
an ordering field in an index record */
dict_table_t* table, /* in: table */
......
innobase/include/row0upd.ic
View file @ 1d7747aa
......@@ -70,8 +70,7 @@ upd_get_nth_field(
}
/*************************************************************************
Sets the clustered index field number to be updated by an update vector
field. */
Sets an index field number to be updated by an update vector field. */
UNIV_INLINE
void
upd_field_set_field_no(
......@@ -79,12 +78,18 @@ upd_field_set_field_no(
upd_field_t* upd_field, /* in: update vector field */
ulint field_no, /* in: field number in a clustered
index */
dict_index_t* index) /* in: clustered index */
{
ut_ad(index->type & DICT_CLUSTERED);
dict_index_t* index) /* in: index */
{
upd_field->field_no = field_no;
if (field_no >= dict_index_get_n_fields(index)) {
fprintf(stderr,
"InnoDB: Error: trying to access field %lu in table %s\n"
"InnoDB: index %s, but index has only %lu fields\n",
field_no, index->table_name, index->name,
dict_index_get_n_fields(index));
}
dtype_copy(dfield_get_type(&(upd_field->new_val)),
dict_index_get_nth_type(index, field_no));
}
......
innobase/include/srv0srv.h
View file @ 1d7747aa
......@@ -16,6 +16,11 @@ Created 10/10/1995 Heikki Tuuri
#include "com0com.h"
#include "que0types.h"
/* When this event is set the lock timeout and InnoDB monitor
thread starts running */
extern os_event_t srv_lock_timeout_thread_event;
/* Server parameters which are read from the initfile */
extern char* srv_data_home;
......@@ -27,6 +32,8 @@ extern char** srv_data_file_names;
extern ulint* srv_data_file_sizes;
extern ulint* srv_data_file_is_raw_partition;
extern ibool srv_created_new_raw;
#define SRV_NEW_RAW 1
#define SRV_OLD_RAW 2
......@@ -39,6 +46,8 @@ extern ibool srv_log_archive_on;
extern ulint srv_log_buffer_size;
extern ibool srv_flush_log_at_trx_commit;
extern byte srv_latin1_ordering[256];/* The sort order table of the latin1
character set */
extern ibool srv_use_native_aio;
extern ulint srv_pool_size;
......@@ -54,6 +63,7 @@ extern ulint srv_lock_wait_timeout;
extern char* srv_unix_file_flush_method_str;
extern ulint srv_unix_file_flush_method;
extern ulint srv_force_recovery;
extern ibool srv_use_doublewrite_buf;
......@@ -70,6 +80,7 @@ extern ulint srv_n_rows_read;
extern ibool srv_print_innodb_monitor;
extern ibool srv_print_innodb_lock_monitor;
extern ibool srv_print_innodb_tablespace_monitor;
extern ibool srv_print_innodb_table_monitor;
extern ulint srv_n_spin_wait_rounds;
extern ulint srv_spin_wait_delay;
......@@ -132,6 +143,25 @@ what these mean */
#define SRV_UNIX_LITTLESYNC 3
#define SRV_UNIX_NOSYNC 4
/* Alternatives for srv_force_recovery. Non-zero values are intended
to help the user get a damaged database up so that he can dump intact
tables and rows with SELECT INTO OUTFILE. The database must not otherwise
be used with these options! A bigger number below means that all precautions
of lower numbers are included. */
#define SRV_FORCE_IGNORE_CORRUPT 1 /* let the server run even if it
detects a corrupt page */
#define SRV_FORCE_NO_BACKGROUND 2 /* prevent the main thread from
running: if a crash would occur
in purge, this prevents it */
#define SRV_FORCE_NO_TRX_UNDO 3 /* do not run trx rollback after
recovery */
#define SRV_FORCE_NO_IBUF_MERGE 4 /* prevent also ibuf operations:
if they would cause a crash, better
not do them */
#define SRV_FORCE_NO_LOG_REDO 5 /* do not do the log roll-forward
in connection with recovery */
/*************************************************************************
Boots Innobase server. */
......@@ -224,15 +254,30 @@ srv_release_mysql_thread_if_suspended(
que_thr_t* thr); /* in: query thread associated with the
MySQL OS thread */
/*************************************************************************
A thread which wakes up threads whose lock wait may have lasted too long. */
A thread which wakes up threads whose lock wait may have lasted too long.
This also prints the info output by various InnoDB monitors. */
#ifndef __WIN__
void*
#else
ulint
#endif
srv_lock_timeout_and_monitor_thread(
/*================================*/
/* out: a dummy parameter */
void* arg); /* in: a dummy parameter required by
os_thread_create */
/*************************************************************************
A thread which prints warnings about semaphore waits which have lasted
too long. These can be used to track bugs which cause hangs. */
#ifndef __WIN__
void*
#else
ulint
#endif
srv_lock_timeout_monitor_thread(
/*============================*/
srv_error_monitor_thread(
/*=====================*/
/* out: a dummy parameter */
void* arg); /* in: a dummy parameter required by
os_thread_create */
......
innobase/include/sync0arr.h
View file @ 1d7747aa
......@@ -51,13 +51,9 @@ sync_array_reserve_cell(
sync_array_t* arr, /* in: wait array */
void* object, /* in: pointer to the object to wait for */
ulint type, /* in: lock request type */
#ifdef UNIV_SYNC_DEBUG
char* file, /* in: in debug version file where
requested */
ulint line, /* in: in the debug version line where
requested */
#endif
ulint* index); /* out: index of the reserved cell */
char* file, /* in: file where requested */
ulint line, /* in: line where requested */
ulint* index); /* out: index of the reserved cell */
/**********************************************************************
This function should be called when a thread starts to wait on
a wait array cell. In the debug version this function checks
......@@ -90,6 +86,20 @@ sync_array_signal_object(
/*=====================*/
sync_array_t* arr, /* in: wait array */
void* object);/* in: wait object */
/**************************************************************************
If the wakeup algorithm does not work perfectly at semaphore relases,
this function will do the waking (see the comment in mutex_exit). This
function should be called about every 1 second in the server. */
void
sync_arr_wake_threads_if_sema_free(void);
/*====================================*/
/**************************************************************************
Prints warnings of long semaphore waits to stderr. Currently > 120 sec. */
void
sync_array_print_long_waits(void);
/*=============================*/
/************************************************************************
Validates the integrity of the wait array. Checks
that the number of reserved cells equals the count variable. */
......
innobase/include/sync0ipm.ic
View file @ 1d7747aa
......@@ -92,7 +92,7 @@ loop:
loop_count++;
ut_ad(loop_count < 15);
if (mutex_enter_nowait(mutex) == 0) {
if (mutex_enter_nowait(mutex, IB__FILE__, __LINE__) == 0) {
/* Succeeded! */
return(0);
......@@ -105,7 +105,7 @@ loop:
/* Order is important here: FIRST reset event, then set waiters */
ip_mutex_set_waiters(ip_mutex, 1);
if (mutex_enter_nowait(mutex) == 0) {
if (mutex_enter_nowait(mutex, IB__FILE__, __LINE__) == 0) {
/* Succeeded! */
return(0);
......
innobase/include/sync0rw.h
View file @ 1d7747aa
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innobase/include/sync0rw.ic
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innobase/include/sync0sync.h
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......@@ -64,24 +64,15 @@ mutex_free(
NOTE! The following macro should be used in mutex locking, not the
corresponding function. */
#ifdef UNIV_SYNC_DEBUG
#define mutex_enter(M) mutex_enter_func((M), IB__FILE__, __LINE__)
#else
#define mutex_enter(M) mutex_enter_func(M)
#endif
/******************************************************************
NOTE! The following macro should be used in mutex locking, not the
corresponding function. */
/* NOTE! currently same as mutex_enter! */
#ifdef UNIV_SYNC_DEBUG
#define mutex_enter_fast(M) mutex_enter_func((M), IB__FILE__, __LINE__)
#else
#define mutex_enter_fast(M) mutex_enter_func(M)
#endif
#define mutex_enter_fast_func mutex_enter_func;
#define mutex_enter_fast(M) mutex_enter_func((M), IB__FILE__, __LINE__)
#define mutex_enter_fast_func mutex_enter_func;
/**********************************************************************
NOTE! Use the corresponding macro in the header file, not this function
directly. Locks a mutex for the current thread. If the mutex is reserved
......@@ -91,12 +82,9 @@ UNIV_INLINE
void
mutex_enter_func(
/*=============*/
mutex_t* mutex /* in: pointer to mutex */
#ifdef UNIV_SYNC_DEBUG
,char* file_name, /* in: file name where locked */
ulint line /* in: line where locked */
#endif
);
mutex_t* mutex, /* in: pointer to mutex */
char* file_name, /* in: file name where locked */
ulint line); /* in: line where locked */
/************************************************************************
Tries to lock the mutex for the current thread. If the lock is not acquired
immediately, returns with return value 1. */
......@@ -104,8 +92,11 @@ immediately, returns with return value 1. */
ulint
mutex_enter_nowait(
/*===============*/
/* out: 0 if succeed, 1 if not */
mutex_t* mutex); /* in: pointer to mutex */
/* out: 0 if succeed, 1 if not */
mutex_t* mutex, /* in: pointer to mutex */
char* file_name, /* in: file name where mutex
requested */
ulint line); /* in: line where requested */
/**********************************************************************
Unlocks a mutex owned by the current thread. */
UNIV_INLINE
......@@ -373,6 +364,7 @@ Memory pool mutex */
#define SYNC_LEVEL_NONE 2000 /* default: level not defined */
#define SYNC_DICT 1000
#define SYNC_DICT_AUTOINC_MUTEX 999
#define SYNC_FOREIGN_KEY_CHECK 998
#define SYNC_PURGE_IS_RUNNING 997
#define SYNC_DICT_HEADER 995
#define SYNC_IBUF_HEADER 914
......@@ -418,6 +410,7 @@ Memory pool mutex */
#define SYNC_BUF_BLOCK 149
#define SYNC_DOUBLEWRITE 140
#define SYNC_ANY_LATCH 135
#define SYNC_THR_LOCAL 133
#define SYNC_MEM_HASH 131
#define SYNC_MEM_POOL 130
......@@ -429,8 +422,6 @@ Memory pool mutex */
#define RW_LOCK_WAIT_EX 353
#define SYNC_MUTEX 354
#define MUTEX_CNAME_LEN 8
/* NOTE! The structure appears here only for the compiler to know its size.
Do not use its fields directly! The structure used in the spin lock
implementation of a mutual exclusion semaphore. */
......@@ -457,8 +448,7 @@ struct mutex_struct {
locked */
ulint level; /* Debug version: level in the global latching
order; default SYNC_LEVEL_NONE */
char cfile_name[MUTEX_CNAME_LEN];
/* File name where mutex created */
char* cfile_name; /* File name where mutex created */
ulint cline; /* Line where created */
ulint magic_n;
};
......
innobase/include/sync0sync.ic
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innobase/include/trx0rseg.ic
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......@@ -61,7 +61,11 @@ trx_rsegf_get_nth_undo(
ulint n, /* in: index of slot */
mtr_t* mtr) /* in: mtr */
{
ut_ad(n < TRX_RSEG_N_SLOTS);
if (n >= TRX_RSEG_N_SLOTS) {
fprintf(stderr,
"InnoDB: Error: trying to get slot %lu of rseg\n", n);
ut_a(0);
}
return(mtr_read_ulint(rsegf + TRX_RSEG_UNDO_SLOTS +
n * TRX_RSEG_SLOT_SIZE, MLOG_4BYTES, mtr));
......@@ -78,7 +82,11 @@ trx_rsegf_set_nth_undo(
ulint page_no,/* in: page number of the undo log segment */
mtr_t* mtr) /* in: mtr */
{
ut_ad(n < TRX_RSEG_N_SLOTS);
if (n >= TRX_RSEG_N_SLOTS) {
fprintf(stderr,
"InnoDB: Error: trying to set slot %lu of rseg\n", n);
ut_a(0);
}
mlog_write_ulint(rsegf + TRX_RSEG_UNDO_SLOTS + n * TRX_RSEG_SLOT_SIZE,
page_no, MLOG_4BYTES, mtr);
......
innobase/include/trx0trx.h
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......@@ -317,6 +317,19 @@ struct trx_struct{
ibool has_search_latch;
/* TRUE if this trx has latched the
search system latch in S-mode */
ulint search_latch_timeout;
/* If we notice that someone is
waiting for our S-lock on the search
latch to be released, we wait in
row0sel.c for BTR_SEA_TIMEOUT new
searches until we try to keep
the search latch again over
calls from MySQL; this is intended
to reduce contention on the search
latch */
lock_t* auto_inc_lock; /* possible auto-inc lock reserved by
the transaction; note that it is also
in the lock list trx_locks */
ibool ignore_duplicates_in_insert;
/* in an insert roll back only insert
of the latest row in case
......@@ -401,11 +414,9 @@ struct trx_struct{
checking algorithm */
/*------------------------------*/
mem_heap_t* lock_heap; /* memory heap for the locks of the
transaction; protected by
lock_heap_mutex */
transaction */
UT_LIST_BASE_NODE_T(lock_t)
trx_locks; /* locks reserved by the transaction;
protected by lock_heap_mutex */
trx_locks; /* locks reserved by the transaction */
/*------------------------------*/
mem_heap_t* read_view_heap; /* memory heap for the read view */
read_view_t* read_view; /* consistent read view or NULL */
......
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innobase/lock/lock0lock.c
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