1berry/MariaDB-server
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

merge 5.5 => 5.5-mtr

Browse Source
This commit is contained in:
Bjorn Munch 2011-11-09 10:06:40 +01:00
commit 3454e60b2b
7 changed files with 162 additions and 233 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
mysql-test/t/mysql_plugin.test
View File

@ -142,8 +142,11 @@ EOF
--echo # Simulate loading a plugin libary with multiple entry points.
--echo # This will test the DISABLE to ensure all rows are removed.
--echo #
--replace_regex /\.dll/.so/
eval INSERT INTO mysql.plugin VALUES ('wicky', '$DAEMONEXAMPLE');
--replace_regex /\.dll/.so/
eval INSERT INTO mysql.plugin VALUES ('wacky', '$DAEMONEXAMPLE');
--replace_regex /\.dll/.so/
eval INSERT INTO mysql.plugin VALUES ('wonky', '$DAEMONEXAMPLE');
--echo #

2
storage/innobase/btr/btr0pcur.c
View File

@ -247,6 +247,8 @@ btr_pcur_restore_position_func(
cursor->rel_pos == BTR_PCUR_BEFORE_FIRST_IN_TREE,
index, latch_mode, btr_pcur_get_btr_cur(cursor), mtr);
cursor->latch_mode = latch_mode;
cursor->pos_state = BTR_PCUR_IS_POSITIONED;
cursor->block_when_stored = btr_pcur_get_block(cursor);
return(FALSE);

25
storage/innobase/buf/buf0buf.c
View File

@ -839,6 +839,16 @@ pfs_register_buffer_block(
rwlock->pfs_psi = (PSI_server)
? PSI_server->init_rwlock(buf_block_lock_key, rwlock)
: NULL;
# ifdef UNIV_SYNC_DEBUG
rwlock = &block->debug_latch;
ut_a(!rwlock->pfs_psi);
rwlock->pfs_psi = (PSI_server)
? PSI_server->init_rwlock(buf_block_debug_latch_key,
rwlock)
: NULL;
# endif /* UNIV_SYNC_DEBUG */
# endif /* UNIV_PFS_RWLOCK */
block++;
}
@ -895,17 +905,24 @@ buf_block_init(
mutex_create(PFS_NOT_INSTRUMENTED, &block->mutex, SYNC_BUF_BLOCK);
rw_lock_create(PFS_NOT_INSTRUMENTED, &block->lock, SYNC_LEVEL_VARYING);
# ifdef UNIV_SYNC_DEBUG
rw_lock_create(PFS_NOT_INSTRUMENTED,
&block->debug_latch, SYNC_NO_ORDER_CHECK);
# endif /* UNIV_SYNC_DEBUG */
#else /* PFS_SKIP_BUFFER_MUTEX_RWLOCK || PFS_GROUP_BUFFER_SYNC */
mutex_create(buffer_block_mutex_key, &block->mutex, SYNC_BUF_BLOCK);
rw_lock_create(buf_block_lock_key, &block->lock, SYNC_LEVEL_VARYING);
# ifdef UNIV_SYNC_DEBUG
rw_lock_create(buf_block_debug_latch_key,
&block->debug_latch, SYNC_NO_ORDER_CHECK);
# endif /* UNIV_SYNC_DEBUG */
#endif /* PFS_SKIP_BUFFER_MUTEX_RWLOCK || PFS_GROUP_BUFFER_SYNC */
ut_ad(rw_lock_validate(&(block->lock)));
#ifdef UNIV_SYNC_DEBUG
rw_lock_create(buf_block_debug_latch_key,
&block->debug_latch, SYNC_NO_ORDER_CHECK);
#endif /* UNIV_SYNC_DEBUG */
}
/********************************************************************//**

8
storage/innobase/handler/ha_innodb.cc
View File

@ -5700,6 +5700,7 @@ ha_innobase::index_read(
(byte*) key_ptr,
(ulint) key_len,
prebuilt->trx);
DBUG_ASSERT(prebuilt->search_tuple->n_fields > 0);
} else {
/* We position the cursor to the last or the first entry
in the index */
@ -7527,6 +7528,7 @@ ha_innobase::records_in_range(
mem_heap_t* heap;
DBUG_ENTER("records_in_range");
DBUG_ASSERT(min_key || max_key);
ut_a(prebuilt->trx == thd_to_trx(ha_thd()));
@ -7576,6 +7578,9 @@ ha_innobase::records_in_range(
(const uchar*) 0),
(ulint) (min_key ? min_key->length : 0),
prebuilt->trx);
DBUG_ASSERT(min_key
? range_start->n_fields > 0
: range_start->n_fields == 0);
row_sel_convert_mysql_key_to_innobase(
range_end, (byte*) key_val_buff2,
@ -7584,6 +7589,9 @@ ha_innobase::records_in_range(
(const uchar*) 0),
(ulint) (max_key ? max_key->length : 0),
prebuilt->trx);
DBUG_ASSERT(max_key
? range_end->n_fields > 0
: range_end->n_fields == 0);
mode1 = convert_search_mode_to_innobase(min_key ? min_key->flag :
HA_READ_KEY_EXACT);

317
storage/innobase/ibuf/ibuf0ibuf.c
View File

@ -254,11 +254,20 @@ ibuf_count_check(
list of the ibuf */
/* @} */
#define IBUF_REC_FIELD_SPACE 0 /*!< in the pre-4.1 format,
the page number. later, the space_id */
#define IBUF_REC_FIELD_MARKER 1 /*!< starting with 4.1, a marker
consisting of 1 byte that is 0 */
#define IBUF_REC_FIELD_PAGE 2 /*!< starting with 4.1, the
page number */
#define IBUF_REC_FIELD_METADATA 3 /* the metadata field */
#define IBUF_REC_FIELD_USER 4 /* first user field */
/* Various constants for checking the type of an ibuf record and extracting
data from it. For details, see the description of the record format at the
top of this file. */
/** @name Format of the fourth column of an insert buffer record
/** @name Format of the IBUF_REC_FIELD_METADATA of an insert buffer record
The fourth column in the MySQL 5.5 format contains an operation
type, counter, and some flags. */
/* @{ */
@ -1233,13 +1242,13 @@ ibuf_rec_get_page_no_func(
ut_ad(ibuf_inside(mtr));
ut_ad(rec_get_n_fields_old(rec) > 2);
field = rec_get_nth_field_old(rec, 1, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_MARKER, &len);
if (len == 1) {
/* This is of the >= 4.1.x record format */
ut_a(trx_sys_multiple_tablespace_format);
field = rec_get_nth_field_old(rec, 2, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_PAGE, &len);
} else {
ut_a(trx_doublewrite_must_reset_space_ids);
ut_a(!trx_sys_multiple_tablespace_format);
@ -1279,13 +1288,13 @@ ibuf_rec_get_space_func(
ut_ad(ibuf_inside(mtr));
ut_ad(rec_get_n_fields_old(rec) > 2);
field = rec_get_nth_field_old(rec, 1, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_MARKER, &len);
if (len == 1) {
/* This is of the >= 4.1.x record format */
ut_a(trx_sys_multiple_tablespace_format);
field = rec_get_nth_field_old(rec, 0, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_SPACE, &len);
ut_a(len == 4);
return(mach_read_from_4(field));
@ -1335,9 +1344,9 @@ ibuf_rec_get_info_func(
|| mtr_memo_contains_page(mtr, rec, MTR_MEMO_PAGE_S_FIX));
ut_ad(ibuf_inside(mtr));
fields = rec_get_n_fields_old(rec);
ut_a(fields > 4);
ut_a(fields > IBUF_REC_FIELD_USER);
types = rec_get_nth_field_old(rec, 3, &len);
types = rec_get_nth_field_old(rec, IBUF_REC_FIELD_METADATA, &len);
info_len_local = len % DATA_NEW_ORDER_NULL_TYPE_BUF_SIZE;
@ -1363,7 +1372,8 @@ ibuf_rec_get_info_func(
ut_a(op_local < IBUF_OP_COUNT);
ut_a((len - info_len_local) ==
(fields - 4) * DATA_NEW_ORDER_NULL_TYPE_BUF_SIZE);
(fields - IBUF_REC_FIELD_USER)
* DATA_NEW_ORDER_NULL_TYPE_BUF_SIZE);
if (op) {
*op = op_local;
@ -1407,7 +1417,7 @@ ibuf_rec_get_op_type_func(
ut_ad(ibuf_inside(mtr));
ut_ad(rec_get_n_fields_old(rec) > 2);
(void) rec_get_nth_field_old(rec, 1, &len);
(void) rec_get_nth_field_old(rec, IBUF_REC_FIELD_MARKER, &len);
if (len > 1) {
/* This is a < 4.1.x format record */
@ -1436,12 +1446,12 @@ ibuf_rec_get_counter(
const byte* ptr;
ulint len;
if (rec_get_n_fields_old(rec) < 4) {
if (rec_get_n_fields_old(rec) <= IBUF_REC_FIELD_METADATA) {
return(ULINT_UNDEFINED);
}
ptr = rec_get_nth_field_old(rec, 3, &len);
ptr = rec_get_nth_field_old(rec, IBUF_REC_FIELD_METADATA, &len);
if (len >= 2) {
@ -1666,7 +1676,7 @@ ibuf_build_entry_from_ibuf_rec_func(
|| mtr_memo_contains_page(mtr, ibuf_rec, MTR_MEMO_PAGE_S_FIX));
ut_ad(ibuf_inside(mtr));
data = rec_get_nth_field_old(ibuf_rec, 1, &len);
data = rec_get_nth_field_old(ibuf_rec, IBUF_REC_FIELD_MARKER, &len);
if (len > 1) {
/* This a < 4.1.x format record */
@ -1678,13 +1688,13 @@ ibuf_build_entry_from_ibuf_rec_func(
ut_a(trx_sys_multiple_tablespace_format);
ut_a(*data == 0);
ut_a(rec_get_n_fields_old(ibuf_rec) > 4);
ut_a(rec_get_n_fields_old(ibuf_rec) > IBUF_REC_FIELD_USER);
n_fields = rec_get_n_fields_old(ibuf_rec) - 4;
n_fields = rec_get_n_fields_old(ibuf_rec) - IBUF_REC_FIELD_USER;
tuple = dtuple_create(heap, n_fields);
types = rec_get_nth_field_old(ibuf_rec, 3, &len);
types = rec_get_nth_field_old(ibuf_rec, IBUF_REC_FIELD_METADATA, &len);
ibuf_rec_get_info(mtr, ibuf_rec, NULL, &comp, &info_len, NULL);
@ -1698,7 +1708,8 @@ ibuf_build_entry_from_ibuf_rec_func(
for (i = 0; i < n_fields; i++) {
field = dtuple_get_nth_field(tuple, i);
data = rec_get_nth_field_old(ibuf_rec, i + 4, &len);
data = rec_get_nth_field_old(
ibuf_rec, i + IBUF_REC_FIELD_USER, &len);
dfield_set_data(field, data, len);
@ -1745,7 +1756,7 @@ ibuf_rec_get_size(
field_offset = 2;
types_offset = DATA_ORDER_NULL_TYPE_BUF_SIZE;
} else {
field_offset = 4;
field_offset = IBUF_REC_FIELD_USER;
types_offset = DATA_NEW_ORDER_NULL_TYPE_BUF_SIZE;
}
@ -1806,7 +1817,7 @@ ibuf_rec_get_volume_func(
ut_ad(ibuf_inside(mtr));
ut_ad(rec_get_n_fields_old(ibuf_rec) > 2);
data = rec_get_nth_field_old(ibuf_rec, 1, &len);
data = rec_get_nth_field_old(ibuf_rec, IBUF_REC_FIELD_MARKER, &len);
pre_4_1 = (len > 1);
if (pre_4_1) {
@ -1829,7 +1840,8 @@ ibuf_rec_get_volume_func(
ut_a(trx_sys_multiple_tablespace_format);
ut_a(*data == 0);
types = rec_get_nth_field_old(ibuf_rec, 3, &len);
types = rec_get_nth_field_old(
ibuf_rec, IBUF_REC_FIELD_METADATA, &len);
ibuf_rec_get_info(mtr, ibuf_rec, &op, &comp, &info_len, NULL);
@ -1859,7 +1871,8 @@ ibuf_rec_get_volume_func(
}
types += info_len;
n_fields = rec_get_n_fields_old(ibuf_rec) - 4;
n_fields = rec_get_n_fields_old(ibuf_rec)
- IBUF_REC_FIELD_USER;
}
data_size = ibuf_rec_get_size(ibuf_rec, types, n_fields, pre_4_1, comp);
@ -1914,11 +1927,11 @@ ibuf_entry_build(
n_fields = dtuple_get_n_fields(entry);
tuple = dtuple_create(heap, n_fields + 4);
tuple = dtuple_create(heap, n_fields + IBUF_REC_FIELD_USER);
/* 1) Space Id */
field = dtuple_get_nth_field(tuple, 0);
field = dtuple_get_nth_field(tuple, IBUF_REC_FIELD_SPACE);
buf = mem_heap_alloc(heap, 4);
@ -1928,7 +1941,7 @@ ibuf_entry_build(
/* 2) Marker byte */
field = dtuple_get_nth_field(tuple, 1);
field = dtuple_get_nth_field(tuple, IBUF_REC_FIELD_MARKER);
buf = mem_heap_alloc(heap, 1);
@ -1940,7 +1953,7 @@ ibuf_entry_build(
/* 3) Page number */
field = dtuple_get_nth_field(tuple, 2);
field = dtuple_get_nth_field(tuple, IBUF_REC_FIELD_PAGE);
buf = mem_heap_alloc(heap, 4);
@ -1988,10 +2001,7 @@ ibuf_entry_build(
ulint fixed_len;
const dict_field_t* ifield;
/* We add 4 below because we have the 4 extra fields at the
start of an ibuf record */
field = dtuple_get_nth_field(tuple, i + 4);
field = dtuple_get_nth_field(tuple, i + IBUF_REC_FIELD_USER);
entry_field = dtuple_get_nth_field(entry, i);
dfield_copy(field, entry_field);
@ -2024,13 +2034,13 @@ ibuf_entry_build(
/* 4) Type info, part #2 */
field = dtuple_get_nth_field(tuple, 3);
field = dtuple_get_nth_field(tuple, IBUF_REC_FIELD_METADATA);
dfield_set_data(field, type_info, ti - type_info);
/* Set all the types in the new tuple binary */
dtuple_set_types_binary(tuple, n_fields + 4);
dtuple_set_types_binary(tuple, n_fields + IBUF_REC_FIELD_USER);
return(tuple);
}
@ -2090,11 +2100,11 @@ ibuf_new_search_tuple_build(
ut_a(trx_sys_multiple_tablespace_format);
tuple = dtuple_create(heap, 3);
tuple = dtuple_create(heap, IBUF_REC_FIELD_METADATA);
/* Store the space id in tuple */
field = dtuple_get_nth_field(tuple, 0);
field = dtuple_get_nth_field(tuple, IBUF_REC_FIELD_SPACE);
buf = mem_heap_alloc(heap, 4);
@ -2104,7 +2114,7 @@ ibuf_new_search_tuple_build(
/* Store the new format record marker byte */
field = dtuple_get_nth_field(tuple, 1);
field = dtuple_get_nth_field(tuple, IBUF_REC_FIELD_MARKER);
buf = mem_heap_alloc(heap, 1);
@ -2114,7 +2124,7 @@ ibuf_new_search_tuple_build(
/* Store the page number in tuple */
field = dtuple_get_nth_field(tuple, 2);
field = dtuple_get_nth_field(tuple, IBUF_REC_FIELD_PAGE);
buf = mem_heap_alloc(heap, 4);
@ -2122,7 +2132,7 @@ ibuf_new_search_tuple_build(
dfield_set_data(field, buf, 4);
dtuple_set_types_binary(tuple, 3);
dtuple_set_types_binary(tuple, IBUF_REC_FIELD_METADATA);
return(tuple);
}
@ -2789,8 +2799,10 @@ ibuf_get_volume_buffered_hash(
ulint fold;
ulint bitmask;
len = ibuf_rec_get_size(rec, types, rec_get_n_fields_old(rec) - 4,
FALSE, comp);
len = ibuf_rec_get_size(
rec, types,
rec_get_n_fields_old(rec) - IBUF_REC_FIELD_USER,
FALSE, comp);
fold = ut_fold_binary(data, len);
hash += (fold / (CHAR_BIT * sizeof *hash)) % size;
@ -2842,8 +2854,8 @@ ibuf_get_volume_buffered_count_func(
ut_ad(ibuf_inside(mtr));
n_fields = rec_get_n_fields_old(rec);
ut_ad(n_fields > 4);
n_fields -= 4;
ut_ad(n_fields > IBUF_REC_FIELD_USER);
n_fields -= IBUF_REC_FIELD_USER;
rec_get_nth_field_offs_old(rec, 1, &len);
/* This function is only invoked when buffering new
@ -2852,7 +2864,7 @@ ibuf_get_volume_buffered_count_func(
ut_a(len == 1);
ut_ad(trx_sys_multiple_tablespace_format);
types = rec_get_nth_field_old(rec, 3, &len);
types = rec_get_nth_field_old(rec, IBUF_REC_FIELD_METADATA, &len);
switch (UNIV_EXPECT(len % DATA_NEW_ORDER_NULL_TYPE_BUF_SIZE,
IBUF_REC_INFO_SIZE)) {
@ -3164,7 +3176,7 @@ ibuf_update_max_tablespace_id(void)
} else {
rec = btr_pcur_get_rec(&pcur);
field = rec_get_nth_field_old(rec, 0, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_SPACE, &len);
ut_a(len == 4);
@ -3186,10 +3198,12 @@ ibuf_update_max_tablespace_id(void)
ibuf_get_entry_counter_low_func(rec,space,page_no)
#endif
/****************************************************************//**
Helper function for ibuf_set_entry_counter. Checks if rec is for (space,
page_no), and if so, reads counter value from it and returns that + 1.
Otherwise, returns 0.
@return new counter value, or 0 */
Helper function for ibuf_get_entry_counter_func. Checks if rec is for
(space, page_no), and if so, reads counter value from it and returns
that + 1.
@retval ULINT_UNDEFINED if the record does not contain any counter
@retval 0 if the record is not for (space, page_no)
@retval 1 + previous counter value, otherwise */
static
ulint
ibuf_get_entry_counter_low_func(
@ -3210,7 +3224,7 @@ ibuf_get_entry_counter_low_func(
|| mtr_memo_contains_page(mtr, rec, MTR_MEMO_PAGE_S_FIX));
ut_ad(rec_get_n_fields_old(rec) > 2);
field = rec_get_nth_field_old(rec, 1, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_MARKER, &len);
if (UNIV_UNLIKELY(len != 1)) {
/* pre-4.1 format */
@ -3223,7 +3237,7 @@ ibuf_get_entry_counter_low_func(
ut_a(trx_sys_multiple_tablespace_format);
/* Check the tablespace identifier. */
field = rec_get_nth_field_old(rec, 0, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_SPACE, &len);
ut_a(len == 4);
if (mach_read_from_4(field) != space) {
@ -3232,7 +3246,7 @@ ibuf_get_entry_counter_low_func(
}
/* Check the page offset. */
field = rec_get_nth_field_old(rec, 2, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_PAGE, &len);
ut_a(len == 4);
if (mach_read_from_4(field) != page_no) {
@ -3241,7 +3255,7 @@ ibuf_get_entry_counter_low_func(
}
/* Check if the record contains a counter field. */
field = rec_get_nth_field_old(rec, 3, &len);
field = rec_get_nth_field_old(rec, IBUF_REC_FIELD_METADATA, &len);
switch (len % DATA_NEW_ORDER_NULL_TYPE_BUF_SIZE) {
default:
@ -3257,147 +3271,61 @@ ibuf_get_entry_counter_low_func(
}
}
#ifdef UNIV_DEBUG
# define ibuf_get_entry_counter(space,page_no,rec,mtr,exact_leaf) \
ibuf_get_entry_counter_func(space,page_no,rec,mtr,exact_leaf)
#else /* UNIV_DEBUG */
# define ibuf_get_entry_counter(space,page_no,rec,mtr,exact_leaf) \
ibuf_get_entry_counter_func(space,page_no,rec,exact_leaf)
#endif
/****************************************************************//**
Set the counter field in entry to the correct value based on the current
Calculate the counter field for an entry based on the current
last record in ibuf for (space, page_no).
@return FALSE if we should abort this insertion to ibuf */
@return the counter field, or ULINT_UNDEFINED
if we should abort this insertion to ibuf */
static
ibool
ibuf_set_entry_counter(
/*===================*/
dtuple_t* entry, /*!< in/out: entry to patch */
ulint
ibuf_get_entry_counter_func(
/*========================*/
ulint space, /*!< in: space id of entry */
ulint page_no, /*!< in: page number of entry */
btr_pcur_t* pcur, /*!< in: pcur positioned on the record
found by btr_pcur_open(.., entry,
PAGE_CUR_LE, ..., pcur, ...) */
ibool is_optimistic, /*!< in: is this an optimistic insert */
mtr_t* mtr) /*!< in: mtr */
const rec_t* rec, /*!< in: the record preceding the
insertion point */
#ifdef UNIV_DEBUG
mtr_t* mtr, /*!< in: mini-transaction */
#endif /* UNIV_DEBUG */
ibool only_leaf) /*!< in: TRUE if this is the only
leaf page that can contain entries
for (space,page_no), that is, there
was no exact match for (space,page_no)
in the node pointer */
{
dfield_t* field;
byte* data;
ulint counter = 0;
/* pcur points to either a user rec or to a page's infimum record. */
ut_ad(ibuf_inside(mtr));
ut_ad(mtr_memo_contains(mtr, btr_pcur_get_block(pcur),
MTR_MEMO_PAGE_X_FIX));
ut_ad(page_validate(btr_pcur_get_page(pcur), ibuf->index));
ut_ad(mtr_memo_contains_page(mtr, rec, MTR_MEMO_PAGE_X_FIX));
ut_ad(page_validate(page_align(rec), ibuf->index));
if (btr_pcur_is_on_user_rec(pcur)) {
counter = ibuf_get_entry_counter_low(
mtr, btr_pcur_get_rec(pcur), space, page_no);
if (UNIV_UNLIKELY(counter == ULINT_UNDEFINED)) {
/* The record lacks a counter field.
Such old records must be merged before
new records can be buffered. */
return(FALSE);
}
} else if (btr_pcur_is_before_first_in_tree(pcur, mtr)) {
/* Ibuf tree is either completely empty, or the insert
position is at the very first record of a non-empty tree. In
either case we have no previous records for (space,
page_no). */
counter = 0;
} else if (btr_pcur_is_before_first_on_page(pcur)) {
btr_cur_t* cursor = btr_pcur_get_btr_cur(pcur);
if (cursor->low_match < 3) {
/* If low_match < 3, we know that the father node
pointer did not contain the searched for (space,
page_no), which means that the search ended on the
right page regardless of the counter value, and
since we're at the infimum record, there are no
existing records. */
counter = 0;
} else {
rec_t* rec;
const page_t* page;
buf_block_t* block;
page_t* prev_page;
ulint prev_page_no;
ut_a(cursor->ibuf_cnt != ULINT_UNDEFINED);
page = btr_pcur_get_page(pcur);
prev_page_no = btr_page_get_prev(page, mtr);
ut_a(prev_page_no != FIL_NULL);
block = buf_page_get(
IBUF_SPACE_ID, 0, prev_page_no,
RW_X_LATCH, mtr);
buf_block_dbg_add_level(block, SYNC_IBUF_TREE_NODE);
prev_page = buf_block_get_frame(block);
rec = page_rec_get_prev(
page_get_supremum_rec(prev_page));
ut_ad(page_rec_is_user_rec(rec));
counter = ibuf_get_entry_counter_low(
mtr, rec, space, page_no);
if (UNIV_UNLIKELY(counter == ULINT_UNDEFINED)) {
/* The record lacks a counter field.
Such old records must be merged before
new records can be buffered. */
return(FALSE);
}
if (counter < cursor->ibuf_cnt) {
/* Search ended on the wrong page. */
if (is_optimistic) {
/* In an optimistic insert, we can
shift the insert position to the left
page, since it only needs an X-latch
on the page itself, which the
original search acquired for us. */
btr_cur_position(
ibuf->index, rec, block,
btr_pcur_get_btr_cur(pcur));
} else {
/* We can't shift the insert
position to the left page in a
pessimistic insert since it would
require an X-latch on the left
page's left page, so we have to
abort. */
return(FALSE);
}
} else {
/* The counter field in the father node is
the same as we would insert; we don't know
whether the insert should go to this page or
the left page (the later fields can differ),
so refuse the insert. */
return(FALSE);
}
}
if (page_rec_is_supremum(rec)) {
/* This is just for safety. The record should be a
page infimum or a user record. */
ut_ad(0);
return(ULINT_UNDEFINED);
} else if (!page_rec_is_infimum(rec)) {
return(ibuf_get_entry_counter_low(mtr, rec, space, page_no));
} else if (only_leaf
|| fil_page_get_prev(page_align(rec)) == FIL_NULL) {
/* The parent node pointer did not contain the
searched for (space, page_no), which means that the
search ended on the correct page regardless of the
counter value, and since we're at the infimum record,
there are no existing records. */
return(0);
} else {
/* The cursor is not positioned at or before a user record. */
return(FALSE);
/* We used to read the previous page here. It would
break the latching order, because the caller has
buffer-fixed an insert buffer bitmap page. */
return(ULINT_UNDEFINED);
}
/* Patch counter value in already built entry. */
field = dtuple_get_nth_field(entry, 3);
data = dfield_get_data(field);
mach_write_to_2(data + IBUF_REC_OFFSET_COUNTER, counter);
return(TRUE);
}
/*********************************************************************//**
@ -3604,16 +3532,27 @@ fail_exit:
}
}
/* Patch correct counter value to the entry to insert. This can
change the insert position, which can result in the need to abort in
some cases. */
if (!no_counter
&& !ibuf_set_entry_counter(ibuf_entry, space, page_no, &pcur,
mode == BTR_MODIFY_PREV, &mtr)) {
bitmap_fail:
ibuf_mtr_commit(&bitmap_mtr);
if (!no_counter) {
/* Patch correct counter value to the entry to
insert. This can change the insert position, which can
result in the need to abort in some cases. */
ulint counter = ibuf_get_entry_counter(
space, page_no, btr_pcur_get_rec(&pcur), &mtr,
btr_pcur_get_btr_cur(&pcur)->low_match
< IBUF_REC_FIELD_METADATA);
dfield_t* field;
goto fail_exit;
if (counter == ULINT_UNDEFINED) {
bitmap_fail:
ibuf_mtr_commit(&bitmap_mtr);
goto fail_exit;
}
field = dtuple_get_nth_field(
ibuf_entry, IBUF_REC_FIELD_METADATA);
mach_write_to_2(
(byte*) dfield_get_data(field)
+ IBUF_REC_OFFSET_COUNTER, counter);
}
/* Set the bitmap bit denoting that the insert buffer contains

8
storage/innobase/include/btr0pcur.h
View File

@ -263,14 +263,6 @@ btr_pcur_commit_specify_mtr(
/*========================*/
btr_pcur_t* pcur, /*!< in: persistent cursor */
mtr_t* mtr); /*!< in: mtr to commit */
/**************************************************************//**
Tests if a cursor is detached: that is the latch mode is BTR_NO_LATCHES.
@return TRUE if detached */
UNIV_INLINE
ibool
btr_pcur_is_detached(
/*=================*/
btr_pcur_t* pcur); /*!< in: persistent cursor */
/*********************************************************//**
Moves the persistent cursor to the next record in the tree. If no records are
left, the cursor stays 'after last in tree'.

32
storage/innobase/include/btr0pcur.ic
View File

@ -388,38 +388,6 @@ btr_pcur_commit_specify_mtr(
pcur->pos_state = BTR_PCUR_WAS_POSITIONED;
}
/**************************************************************//**
Sets the pcur latch mode to BTR_NO_LATCHES. */
UNIV_INLINE
void
btr_pcur_detach(
/*============*/
btr_pcur_t* pcur) /*!< in: persistent cursor */
{
ut_a(pcur->pos_state == BTR_PCUR_IS_POSITIONED);
pcur->latch_mode = BTR_NO_LATCHES;
pcur->pos_state = BTR_PCUR_WAS_POSITIONED;
}
/**************************************************************//**
Tests if a cursor is detached: that is the latch mode is BTR_NO_LATCHES.
@return TRUE if detached */
UNIV_INLINE
ibool
btr_pcur_is_detached(
/*=================*/
btr_pcur_t* pcur) /*!< in: persistent cursor */
{
if (pcur->latch_mode == BTR_NO_LATCHES) {
return(TRUE);
}
return(FALSE);
}
/**************************************************************//**
Sets the old_rec_buf field to NULL. */
UNIV_INLINE