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mariadb/include/lock0lock.h

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Import 5.0 code.
2005-10-27 07:29:40 +00:00
/******************************************************
The transaction lock system
(c) 1996 Innobase Oy
Created 5/7/1996 Heikki Tuuri
*******************************************************/
#ifndef lock0lock_h
#define lock0lock_h
#include "univ.i"
branches/zip: Eliminate many buf_block_align() calls. Replace page_t* or page_zip_des_t* parameters in some functions with buf_block_t*. buf_frame_get_page_zip(): Disable unless #ifdef UNIV_DEBUG || UNIV_ZIP_DEBUG. btr_cur_t: Add buf_block_t* page_block. btr_pcur_get_block(), btr_cur_get_block(), btr_cur_get_page_zip(): New functions. btr_cur_position(): Add the parameter block.
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#include "buf0types.h"
Import 5.0 code.
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#include "trx0types.h"
#include "rem0types.h"
#include "dict0types.h"
#include "que0types.h"
#include "lock0types.h"
#include "read0types.h"
#include "hash0hash.h"
branches/zip: 1. We add a vector of locks to trx_t. This array contains the autoinc locks granted to a transaction. There is one per table. 2. We enforce releasing of these locks in the reverse order from the one in which they are acquired. The assumption is that since the AUTOINC locks are statement level locks. Nested statements introduced by triggers are stacked it should hold. There was some cleanup done to the vector code too by adding const and some new functions. Rename dict_table_t::auto_inc_lock to autoinc_lock. Fix Bug#26316 Triggers create duplicate entries on auto-increment columns rb://22
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#include "ut0vec.h"
Import 5.0 code.
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#ifdef UNIV_DEBUG
extern ibool lock_print_waits;
#endif /* UNIV_DEBUG */
/* Buffer for storing information about the most recent deadlock error */
extern FILE* lock_latest_err_file;
/*************************************************************************
Gets the size of a lock struct. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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ulint
lock_get_size(void);
/*===============*/
/* out: size in bytes */
/*************************************************************************
Creates the lock system at database start. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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void
lock_sys_create(
/*============*/
ulint n_cells); /* in: number of slots in lock hash table */
/*************************************************************************
Checks if some transaction has an implicit x-lock on a record in a clustered
index. */
UNIV_INLINE
trx_t*
lock_clust_rec_some_has_impl(
/*=========================*/
/* out: transaction which has the x-lock, or
NULL */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const rec_t* rec, /* in: user record */
Import 5.0 code.
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dict_index_t* index, /* in: clustered index */
const ulint* offsets);/* in: rec_get_offsets(rec, index) */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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/*************************************************************************
Gets the heap_no of the smallest user record on a page. */
UNIV_INLINE
ulint
lock_get_min_heap_no(
/*=================*/
/* out: heap_no of smallest
user record, or
PAGE_HEAP_NO_SUPREMUM */
const buf_block_t* block); /* in: buffer block */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Updates the lock table when we have reorganized a page. NOTE: we copy
also the locks set on the infimum of the page; the infimum may carry
locks if an update of a record is occurring on the page, and its locks
were temporarily stored on the infimum. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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void
lock_move_reorganize_page(
/*======================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* block, /* in: old index page, now
reorganized */
const buf_block_t* oblock);/* in: copy of the old, not
reorganized page */
Import 5.0 code.
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/*****************************************************************
Moves the explicit locks on user records to another page if a record
list end is moved to another page. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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void
lock_move_rec_list_end(
/*===================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* new_block, /* in: index page to move to */
const buf_block_t* block, /* in: index page */
const rec_t* rec); /* in: record on page: this
is the first record moved */
Import 5.0 code.
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/*****************************************************************
Moves the explicit locks on user records to another page if a record
list start is moved to another page. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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void
lock_move_rec_list_start(
/*=====================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* new_block, /* in: index page to move to */
const buf_block_t* block, /* in: index page */
const rec_t* rec, /* in: record on page:
this is the first
record NOT copied */
const rec_t* old_end); /* in: old
previous-to-last
record on new_page
before the records
were copied */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Updates the lock table when a page is split to the right. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_update_split_right(
/*====================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const buf_block_t* right_block, /* in: right page */
const buf_block_t* left_block); /* in: left page */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Updates the lock table when a page is merged to the right. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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void
lock_update_merge_right(
/*====================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* right_block, /* in: right page to
which merged */
const rec_t* orig_succ, /* in: original
successor of infimum
on the right page
before merge */
const buf_block_t* left_block); /* in: merged index
page which will be
discarded */
Import 5.0 code.
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/*****************************************************************
Updates the lock table when the root page is copied to another in
btr_root_raise_and_insert. Note that we leave lock structs on the
root page, even though they do not make sense on other than leaf
pages: the reason is that in a pessimistic update the infimum record
of the root page will act as a dummy carrier of the locks of the record
to be updated. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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void
lock_update_root_raise(
/*===================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* block, /* in: index page to which copied */
const buf_block_t* root); /* in: root page */
Import 5.0 code.
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/*****************************************************************
Updates the lock table when a page is copied to another and the original page
is removed from the chain of leaf pages, except if page is the root! */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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void
lock_update_copy_and_discard(
/*=========================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const buf_block_t* new_block, /* in: index page to
which copied */
const buf_block_t* block); /* in: index page;
NOT the root! */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Updates the lock table when a page is split to the left. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_update_split_left(
/*===================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const buf_block_t* right_block, /* in: right page */
const buf_block_t* left_block); /* in: left page */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Updates the lock table when a page is merged to the left. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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void
lock_update_merge_left(
/*===================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* left_block, /* in: left page to
which merged */
const rec_t* orig_pred, /* in: original predecessor
of supremum on the left page
before merge */
const buf_block_t* right_block); /* in: merged index page
which will be discarded */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Resets the original locks on heir and replaces them with gap type locks
inherited from rec. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
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UNIV_INTERN
Import 5.0 code.
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void
lock_rec_reset_and_inherit_gap_locks(
/*=================================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const buf_block_t* heir_block, /* in: block containing the
record which inherits */
const buf_block_t* block, /* in: block containing the
record from which inherited;
does NOT reset the locks on
this record */
ulint heir_heap_no, /* in: heap_no of the
inheriting record */
ulint heap_no); /* in: heap_no of the
donating record */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Updates the lock table when a page is discarded. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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void
lock_update_discard(
/*================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const buf_block_t* heir_block, /* in: index page
which will inherit the locks */
ulint heir_heap_no, /* in: heap_no of the record
which will inherit the locks */
const buf_block_t* block); /* in: index page
which will be discarded */
Import 5.0 code.
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/*****************************************************************
Updates the lock table when a new user record is inserted. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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void
lock_update_insert(
/*===============*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* block, /* in: buffer block containing rec */
const rec_t* rec); /* in: the inserted record */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*****************************************************************
Updates the lock table when a record is removed. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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void
lock_update_delete(
/*===============*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* block, /* in: buffer block containing rec */
const rec_t* rec); /* in: the record to be removed */
Import 5.0 code.
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/*************************************************************************
Stores on the page infimum record the explicit locks of another record.
This function is used to store the lock state of a record when it is
updated and the size of the record changes in the update. The record
is in such an update moved, perhaps to another page. The infimum record
acts as a dummy carrier record, taking care of lock releases while the
actual record is being moved. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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void
lock_rec_store_on_page_infimum(
/*===========================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* block, /* in: buffer block containing rec */
const rec_t* rec); /* in: record whose lock state
is stored on the infimum
record of the same page; lock
bits are reset on the
record */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Restores the state of explicit lock requests on a single record, where the
state was stored on the infimum of the page. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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void
lock_rec_restore_from_page_infimum(
/*===============================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const buf_block_t* block, /* in: buffer block containing rec */
const rec_t* rec, /* in: record whose lock state
branches/zip: Minor fixes. lock_rec_restore_from_page_infimum(): Correct the comment of the parameter rec. lock_sec_rec_read_check_and_lock(): Add the debug assertion ut_ad(mode == LOCK_X || mode == LOCK_S).
2008-02-18 15:45:17 +00:00
is restored */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
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const buf_block_t* donator);/* in: page (rec is not
necessarily on this page)
whose infimum stored the lock
state; lock bits are reset on
the infimum */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Returns TRUE if there are explicit record locks on a page. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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ibool
lock_rec_expl_exist_on_page(
/*========================*/
/* out: TRUE if there are explicit record locks on
the page */
ulint space, /* in: space id */
ulint page_no);/* in: page number */
/*************************************************************************
Checks if locks of other transactions prevent an immediate insert of
a record. If they do, first tests if the query thread should anyway
be suspended for some reason; if not, then puts the transaction and
the query thread to the lock wait state and inserts a waiting request
for a gap x-lock to the lock queue. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
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ulint
lock_rec_insert_check_and_lock(
/*===========================*/
/* out: DB_SUCCESS, DB_LOCK_WAIT,
DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
ulint flags, /* in: if BTR_NO_LOCKING_FLAG bit is
set, does nothing */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
rec_t* rec, /* in: record after which to insert */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
buf_block_t* block, /* in/out: buffer block of rec */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
dict_index_t* index, /* in: index */
que_thr_t* thr, /* in: query thread */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
ibool* inherit);/* out: set to TRUE if the new
inserted record maybe should inherit
LOCK_GAP type locks from the successor
record */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Checks if locks of other transactions prevent an immediate modify (update,
delete mark, or delete unmark) of a clustered index record. If they do,
first tests if the query thread should anyway be suspended for some
reason; if not, then puts the transaction and the query thread to the
lock wait state and inserts a waiting request for a record x-lock to the
lock queue. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ulint
lock_clust_rec_modify_check_and_lock(
/*=================================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
/* out: DB_SUCCESS,
DB_LOCK_WAIT, DB_DEADLOCK, or
DB_QUE_THR_SUSPENDED */
ulint flags, /* in: if BTR_NO_LOCKING_FLAG
bit is set, does nothing */
const buf_block_t* block, /* in: buffer block of rec */
const rec_t* rec, /* in: record which should be
modified */
dict_index_t* index, /* in: clustered index */
const ulint* offsets,/* in: rec_get_offsets(rec, index) */
que_thr_t* thr); /* in: query thread */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Checks if locks of other transactions prevent an immediate modify
(delete mark or delete unmark) of a secondary index record. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ulint
lock_sec_rec_modify_check_and_lock(
/*===============================*/
/* out: DB_SUCCESS, DB_LOCK_WAIT,
DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
ulint flags, /* in: if BTR_NO_LOCKING_FLAG
bit is set, does nothing */
buf_block_t* block, /* in/out: buffer block of rec */
rec_t* rec, /* in: record which should be
modified; NOTE: as this is a secondary
index, we always have to modify the
clustered index record first: see the
comment below */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
dict_index_t* index, /* in: secondary index */
que_thr_t* thr); /* in: query thread */
/*************************************************************************
Like the counterpart for a clustered index below, but now we read a
secondary index record. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ulint
lock_sec_rec_read_check_and_lock(
/*=============================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
/* out: DB_SUCCESS,
DB_LOCK_WAIT, DB_DEADLOCK, or
DB_QUE_THR_SUSPENDED */
ulint flags, /* in: if BTR_NO_LOCKING_FLAG
bit is set, does nothing */
const buf_block_t* block, /* in: buffer block of rec */
branches/zip: lock_sec_rec_read_check_and_lock(): Correct a typo in comment.
2007-10-22 07:49:54 +00:00
const rec_t* rec, /* in: user record or page
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
supremum record which should
be read or passed over by a
read cursor */
dict_index_t* index, /* in: secondary index */
const ulint* offsets,/* in: rec_get_offsets(rec, index) */
branches/zip: Simplify lock_mode_stronger_or_eq() and lock_mode_compatible() and introduce enum lock_mode. lock_mode_stronger_or_eq(), lock_mode_compatible(): Replace if-then-else chain with a bitwise and against a constant.
2007-02-01 20:56:23 +00:00
enum lock_mode mode, /* in: mode of the lock which
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
the read cursor should set on
records: LOCK_S or LOCK_X; the
latter is possible in
SELECT FOR UPDATE */
ulint gap_mode,/* in: LOCK_ORDINARY, LOCK_GAP, or
LOCK_REC_NOT_GAP */
que_thr_t* thr); /* in: query thread */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Checks if locks of other transactions prevent an immediate read, or passing
over by a read cursor, of a clustered index record. If they do, first tests
if the query thread should anyway be suspended for some reason; if not, then
puts the transaction and the query thread to the lock wait state and inserts a
waiting request for a record lock to the lock queue. Sets the requested mode
lock on the record. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ulint
lock_clust_rec_read_check_and_lock(
/*===============================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
/* out: DB_SUCCESS,
DB_LOCK_WAIT, DB_DEADLOCK, or
DB_QUE_THR_SUSPENDED */
ulint flags, /* in: if BTR_NO_LOCKING_FLAG
bit is set, does nothing */
const buf_block_t* block, /* in: buffer block of rec */
const rec_t* rec, /* in: user record or page
supremum record which should
be read or passed over by a
read cursor */
dict_index_t* index, /* in: clustered index */
const ulint* offsets,/* in: rec_get_offsets(rec, index) */
branches/zip: Simplify lock_mode_stronger_or_eq() and lock_mode_compatible() and introduce enum lock_mode. lock_mode_stronger_or_eq(), lock_mode_compatible(): Replace if-then-else chain with a bitwise and against a constant.
2007-02-01 20:56:23 +00:00
enum lock_mode mode, /* in: mode of the lock which
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
the read cursor should set on
records: LOCK_S or LOCK_X; the
latter is possible in
SELECT FOR UPDATE */
ulint gap_mode,/* in: LOCK_ORDINARY, LOCK_GAP, or
LOCK_REC_NOT_GAP */
que_thr_t* thr); /* in: query thread */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Checks if locks of other transactions prevent an immediate read, or passing
over by a read cursor, of a clustered index record. If they do, first tests
if the query thread should anyway be suspended for some reason; if not, then
puts the transaction and the query thread to the lock wait state and inserts a
waiting request for a record lock to the lock queue. Sets the requested mode
lock on the record. This is an alternative version of
lock_clust_rec_read_check_and_lock() that does not require the parameter
"offsets". */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ulint
lock_clust_rec_read_check_and_lock_alt(
/*===================================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
/* out: DB_SUCCESS,
DB_LOCK_WAIT, DB_DEADLOCK, or
DB_QUE_THR_SUSPENDED */
ulint flags, /* in: if BTR_NO_LOCKING_FLAG
bit is set, does nothing */
const buf_block_t* block, /* in: buffer block of rec */
const rec_t* rec, /* in: user record or page
supremum record which should
be read or passed over by a
read cursor */
dict_index_t* index, /* in: clustered index */
branches/zip: Simplify lock_mode_stronger_or_eq() and lock_mode_compatible() and introduce enum lock_mode. lock_mode_stronger_or_eq(), lock_mode_compatible(): Replace if-then-else chain with a bitwise and against a constant.
2007-02-01 20:56:23 +00:00
enum lock_mode mode, /* in: mode of the lock which
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
the read cursor should set on
records: LOCK_S or LOCK_X; the
latter is possible in
SELECT FOR UPDATE */
ulint gap_mode,/* in: LOCK_ORDINARY, LOCK_GAP, or
LOCK_REC_NOT_GAP */
que_thr_t* thr); /* in: query thread */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Checks that a record is seen in a consistent read. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ibool
lock_clust_rec_cons_read_sees(
/*==========================*/
/* out: TRUE if sees, or FALSE if an earlier
version of the record should be retrieved */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const rec_t* rec, /* in: user record which should be read or
Import 5.0 code.
2005-10-27 07:29:40 +00:00
passed over by a read cursor */
dict_index_t* index, /* in: clustered index */
const ulint* offsets,/* in: rec_get_offsets(rec, index) */
read_view_t* view); /* in: consistent read view */
/*************************************************************************
Checks that a non-clustered index record is seen in a consistent read. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ulint
lock_sec_rec_cons_read_sees(
/*========================*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
/* out: TRUE if certainly
sees, or FALSE if an earlier
version of the clustered index
record might be needed: NOTE
that a non-clustered index
page contains so little
information on its
modifications that also in the
case FALSE, the present
version of rec may be the
right, but we must check this
from the clustered index
record */
const rec_t* rec, /* in: user record which
should be read or passed over
by a read cursor */
const read_view_t* view); /* in: consistent read view */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Locks the specified database table in the mode given. If the lock cannot
be granted immediately, the query thread is put to wait. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ulint
lock_table(
/*=======*/
/* out: DB_SUCCESS, DB_LOCK_WAIT,
DB_DEADLOCK, or DB_QUE_THR_SUSPENDED */
ulint flags, /* in: if BTR_NO_LOCKING_FLAG bit is set,
does nothing */
dict_table_t* table, /* in: database table in dictionary cache */
branches/zip: Simplify lock_mode_stronger_or_eq() and lock_mode_compatible() and introduce enum lock_mode. lock_mode_stronger_or_eq(), lock_mode_compatible(): Replace if-then-else chain with a bitwise and against a constant.
2007-02-01 20:56:23 +00:00
enum lock_mode mode, /* in: lock mode */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
que_thr_t* thr); /* in: query thread */
/*************************************************************************
Checks if there are any locks set on the table. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ibool
lock_is_on_table(
/*=============*/
/* out: TRUE if there are lock(s) */
dict_table_t* table); /* in: database table in dictionary cache */
branches/zip: Merge revisions 79:200 from trunk.
2006-02-17 14:19:39 +00:00
/*****************************************************************
Removes a granted record lock of a transaction from the queue and grants
locks to other transactions waiting in the queue if they now are entitled
to a lock. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
branches/zip: Merge revisions 79:200 from trunk.
2006-02-17 14:19:39 +00:00
void
lock_rec_unlock(
/*============*/
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
trx_t* trx, /* in: transaction that has
set a record lock */
const buf_block_t* block, /* in: buffer block containing rec */
const rec_t* rec, /* in: record */
branches/zip: Simplify lock_mode_stronger_or_eq() and lock_mode_compatible() and introduce enum lock_mode. lock_mode_stronger_or_eq(), lock_mode_compatible(): Replace if-then-else chain with a bitwise and against a constant.
2007-02-01 20:56:23 +00:00
enum lock_mode lock_mode);/* in: LOCK_S or LOCK_X */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Releases a table lock.
Releases possible other transactions waiting for this lock. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_table_unlock(
/*==============*/
lock_t* lock); /* in: lock */
/*************************************************************************
Releases transaction locks, and releases possible other transactions waiting
because of these locks. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_release_off_kernel(
/*====================*/
trx_t* trx); /* in: transaction */
/*************************************************************************
Cancels a waiting lock request and releases possible other transactions
waiting behind it. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_cancel_waiting_and_release(
/*============================*/
lock_t* lock); /* in: waiting lock request */
branches/zip: Merge revisions 2702:2722 from branches/5.1: ------------------------------------------------------------------------ r2702 | sunny | 2008-09-30 11:41:56 +0300 (Tue, 30 Sep 2008) | 13 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: Since handler::get_auto_increment() doesn't allow us to return the cause of failure we have to inform MySQL using the sql_print_warning() function to return the cause for autoinc failure. Previously we simply printed the error code, this patch prints the text string representing the following two error codes: DB_LOCK_WAIT_TIMEOUT DB_DEADLOCK. Bug#35498 Cannot get table test/table1 auto-inccounter value in ::info Approved by Marko. ------------------------------------------------------------------------ r2709 | vasil | 2008-10-01 10:13:13 +0300 (Wed, 01 Oct 2008) | 10 lines Changed paths: M /branches/5.1/include/lock0lock.h M /branches/5.1/lock/lock0lock.c A /branches/5.1/mysql-test/innodb_bug38231.result A /branches/5.1/mysql-test/innodb_bug38231.test M /branches/5.1/row/row0mysql.c branches/5.1: Fix Bug#38231 Innodb crash in lock_reset_all_on_table() on TRUNCATE + LOCK / UNLOCK In TRUNCATE TABLE and discard tablespace: do not remove table-level S and X locks and do not assert on such locks not being wait locks. Leave such locks alone. Approved by: Heikki (rb://14) ------------------------------------------------------------------------ r2710 | vasil | 2008-10-01 14:13:58 +0300 (Wed, 01 Oct 2008) | 6 lines Changed paths: M /branches/5.1/include/sync0sync.ic branches/5.1: Silence a compilation warning in UNIV_DEBUG. Approved by: Marko (via IM) ------------------------------------------------------------------------ r2719 | vasil | 2008-10-03 18:17:28 +0300 (Fri, 03 Oct 2008) | 49 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc A /branches/5.1/mysql-test/innodb_bug39438-master.opt A /branches/5.1/mysql-test/innodb_bug39438.result A /branches/5.1/mysql-test/innodb_bug39438.test branches/5.1: Fix Bug#39438 Testcase for Bug#39436 crashes on 5.1 in fil_space_get_latch In ha_innobase::info() - do not try to get the free space for a tablespace which has been discarded with ALTER TABLE ... DISCARD TABLESPACE or if the .ibd file is missing for some other reason. ibd_file_missing and tablespace_discarded are manipulated only in row_discard_tablespace_for_mysql() and in row_import_tablespace_for_mysql() and the manipulation is protected/surrounded by row_mysql_lock_data_dictionary()/row_mysql_unlock_data_dictionary() thus we do the same in ha_innobase::info() when checking the values of those members to avoid race conditions. I have tested the code-path with UNIV_DEBUG and UNIV_SYNC_DEBUG. Looks like it is not possible to avoid mysqld printing warnings in the mysql-test case and thus this test innodb_bug39438 must be added to the list of exceptional test cases that are allowed to print warnings. For this, the following patch must be applied to the mysql source tree: --- cut --- === modified file 'mysql-test/lib/mtr_report.pl' --- mysql-test/lib/mtr_report.pl 2008-08-12 10:26:23 +0000 +++ mysql-test/lib/mtr_report.pl 2008-10-01 11:57:41 +0000 @@ -412,7 +412,10 @@ # When trying to set lower_case_table_names = 2 # on a case sensitive file system. Bug#37402. - /lower_case_table_names was set to 2, even though your the file system '.*' is case sensitive. Now setting lower_case_table_names to 0 to avoid future problems./ + /lower_case_table_names was set to 2, even though your the file system '.*' is case sensitive. Now setting lower_case_table_names to 0 to avoid future problems./ or + + # this test is expected to print warnings + ($testname eq 'main.innodb_bug39438') ) { next; # Skip these lines --- cut --- The mysql-test is currently somewhat disabled (see inside innodb_bug39438.test), after the above patch has been applied to the mysql source tree, the test can be enabled. rb://20 Reviewed by: Inaam, Calvin Approved by: Heikki ------------------------------------------------------------------------ r2720 | vasil | 2008-10-03 19:52:39 +0300 (Fri, 03 Oct 2008) | 8 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: Print a warning if an attempt is made to get the free space for a table whose .ibd file is missing or the tablespace has been discarded. This is a followup to r2719. Suggested by: Inaam ------------------------------------------------------------------------ r2721 | sunny | 2008-10-04 02:08:23 +0300 (Sat, 04 Oct 2008) | 6 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: We need to send the messages to the client because handler::get_auto_increment() doesn't allow a way to return the specific error for why it failed. rb://18 ------------------------------------------------------------------------ r2722 | sunny | 2008-10-04 02:48:04 +0300 (Sat, 04 Oct 2008) | 18 lines Changed paths: M /branches/5.1/dict/dict0mem.c M /branches/5.1/handler/ha_innodb.cc M /branches/5.1/include/dict0mem.h M /branches/5.1/include/row0mysql.h M /branches/5.1/mysql-test/innodb-autoinc.result M /branches/5.1/mysql-test/innodb-autoinc.test M /branches/5.1/row/row0mysql.c branches/5.1: This bug has always existed but was masked by other errors. The fix for bug# 38839 triggered this bug. When the offset and increment are > 1 we need to calculate the next value taking into consideration the two variables. Previously we simply assumed they were 1 particularly offset was never used. MySQL does its own calculation and that's probably why it seemed to work in the past. We would return what we thought was the correct next value and then MySQL would recalculate the actual value from that and return it to the caller (e.g., handler::write_row()). Several new tests have been added that try and catch some edge cases. The tests exposed a wrap around error in MySQL next value calculation which was filed as bug#39828. The tests will need to be updated once MySQL fix that bug. One good side effect of this fix is that dict_table_t size has been reduced by 8 bytes because we have moved the autoinc_increment field to the row_prebuilt_t structure. See review-board for a detailed discussion. rb://3 ------------------------------------------------------------------------
2008-10-04 03:22:36 +00:00
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
branches/zip: Merge revisions 2702:2722 from branches/5.1: ------------------------------------------------------------------------ r2702 | sunny | 2008-09-30 11:41:56 +0300 (Tue, 30 Sep 2008) | 13 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: Since handler::get_auto_increment() doesn't allow us to return the cause of failure we have to inform MySQL using the sql_print_warning() function to return the cause for autoinc failure. Previously we simply printed the error code, this patch prints the text string representing the following two error codes: DB_LOCK_WAIT_TIMEOUT DB_DEADLOCK. Bug#35498 Cannot get table test/table1 auto-inccounter value in ::info Approved by Marko. ------------------------------------------------------------------------ r2709 | vasil | 2008-10-01 10:13:13 +0300 (Wed, 01 Oct 2008) | 10 lines Changed paths: M /branches/5.1/include/lock0lock.h M /branches/5.1/lock/lock0lock.c A /branches/5.1/mysql-test/innodb_bug38231.result A /branches/5.1/mysql-test/innodb_bug38231.test M /branches/5.1/row/row0mysql.c branches/5.1: Fix Bug#38231 Innodb crash in lock_reset_all_on_table() on TRUNCATE + LOCK / UNLOCK In TRUNCATE TABLE and discard tablespace: do not remove table-level S and X locks and do not assert on such locks not being wait locks. Leave such locks alone. Approved by: Heikki (rb://14) ------------------------------------------------------------------------ r2710 | vasil | 2008-10-01 14:13:58 +0300 (Wed, 01 Oct 2008) | 6 lines Changed paths: M /branches/5.1/include/sync0sync.ic branches/5.1: Silence a compilation warning in UNIV_DEBUG. Approved by: Marko (via IM) ------------------------------------------------------------------------ r2719 | vasil | 2008-10-03 18:17:28 +0300 (Fri, 03 Oct 2008) | 49 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc A /branches/5.1/mysql-test/innodb_bug39438-master.opt A /branches/5.1/mysql-test/innodb_bug39438.result A /branches/5.1/mysql-test/innodb_bug39438.test branches/5.1: Fix Bug#39438 Testcase for Bug#39436 crashes on 5.1 in fil_space_get_latch In ha_innobase::info() - do not try to get the free space for a tablespace which has been discarded with ALTER TABLE ... DISCARD TABLESPACE or if the .ibd file is missing for some other reason. ibd_file_missing and tablespace_discarded are manipulated only in row_discard_tablespace_for_mysql() and in row_import_tablespace_for_mysql() and the manipulation is protected/surrounded by row_mysql_lock_data_dictionary()/row_mysql_unlock_data_dictionary() thus we do the same in ha_innobase::info() when checking the values of those members to avoid race conditions. I have tested the code-path with UNIV_DEBUG and UNIV_SYNC_DEBUG. Looks like it is not possible to avoid mysqld printing warnings in the mysql-test case and thus this test innodb_bug39438 must be added to the list of exceptional test cases that are allowed to print warnings. For this, the following patch must be applied to the mysql source tree: --- cut --- === modified file 'mysql-test/lib/mtr_report.pl' --- mysql-test/lib/mtr_report.pl 2008-08-12 10:26:23 +0000 +++ mysql-test/lib/mtr_report.pl 2008-10-01 11:57:41 +0000 @@ -412,7 +412,10 @@ # When trying to set lower_case_table_names = 2 # on a case sensitive file system. Bug#37402. - /lower_case_table_names was set to 2, even though your the file system '.*' is case sensitive. Now setting lower_case_table_names to 0 to avoid future problems./ + /lower_case_table_names was set to 2, even though your the file system '.*' is case sensitive. Now setting lower_case_table_names to 0 to avoid future problems./ or + + # this test is expected to print warnings + ($testname eq 'main.innodb_bug39438') ) { next; # Skip these lines --- cut --- The mysql-test is currently somewhat disabled (see inside innodb_bug39438.test), after the above patch has been applied to the mysql source tree, the test can be enabled. rb://20 Reviewed by: Inaam, Calvin Approved by: Heikki ------------------------------------------------------------------------ r2720 | vasil | 2008-10-03 19:52:39 +0300 (Fri, 03 Oct 2008) | 8 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: Print a warning if an attempt is made to get the free space for a table whose .ibd file is missing or the tablespace has been discarded. This is a followup to r2719. Suggested by: Inaam ------------------------------------------------------------------------ r2721 | sunny | 2008-10-04 02:08:23 +0300 (Sat, 04 Oct 2008) | 6 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: We need to send the messages to the client because handler::get_auto_increment() doesn't allow a way to return the specific error for why it failed. rb://18 ------------------------------------------------------------------------ r2722 | sunny | 2008-10-04 02:48:04 +0300 (Sat, 04 Oct 2008) | 18 lines Changed paths: M /branches/5.1/dict/dict0mem.c M /branches/5.1/handler/ha_innodb.cc M /branches/5.1/include/dict0mem.h M /branches/5.1/include/row0mysql.h M /branches/5.1/mysql-test/innodb-autoinc.result M /branches/5.1/mysql-test/innodb-autoinc.test M /branches/5.1/row/row0mysql.c branches/5.1: This bug has always existed but was masked by other errors. The fix for bug# 38839 triggered this bug. When the offset and increment are > 1 we need to calculate the next value taking into consideration the two variables. Previously we simply assumed they were 1 particularly offset was never used. MySQL does its own calculation and that's probably why it seemed to work in the past. We would return what we thought was the correct next value and then MySQL would recalculate the actual value from that and return it to the caller (e.g., handler::write_row()). Several new tests have been added that try and catch some edge cases. The tests exposed a wrap around error in MySQL next value calculation which was filed as bug#39828. The tests will need to be updated once MySQL fix that bug. One good side effect of this fix is that dict_table_t size has been reduced by 8 bytes because we have moved the autoinc_increment field to the row_prebuilt_t structure. See review-board for a detailed discussion. rb://3 ------------------------------------------------------------------------
2008-10-04 03:22:36 +00:00
Removes locks on a table to be dropped or truncated.
If remove_also_table_sx_locks is TRUE then table-level S and X locks are
also removed in addition to other table-level and record-level locks.
No lock, that is going to be removed, is allowed to be a wait lock. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
branches/zip: Merge revisions 2702:2722 from branches/5.1: ------------------------------------------------------------------------ r2702 | sunny | 2008-09-30 11:41:56 +0300 (Tue, 30 Sep 2008) | 13 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: Since handler::get_auto_increment() doesn't allow us to return the cause of failure we have to inform MySQL using the sql_print_warning() function to return the cause for autoinc failure. Previously we simply printed the error code, this patch prints the text string representing the following two error codes: DB_LOCK_WAIT_TIMEOUT DB_DEADLOCK. Bug#35498 Cannot get table test/table1 auto-inccounter value in ::info Approved by Marko. ------------------------------------------------------------------------ r2709 | vasil | 2008-10-01 10:13:13 +0300 (Wed, 01 Oct 2008) | 10 lines Changed paths: M /branches/5.1/include/lock0lock.h M /branches/5.1/lock/lock0lock.c A /branches/5.1/mysql-test/innodb_bug38231.result A /branches/5.1/mysql-test/innodb_bug38231.test M /branches/5.1/row/row0mysql.c branches/5.1: Fix Bug#38231 Innodb crash in lock_reset_all_on_table() on TRUNCATE + LOCK / UNLOCK In TRUNCATE TABLE and discard tablespace: do not remove table-level S and X locks and do not assert on such locks not being wait locks. Leave such locks alone. Approved by: Heikki (rb://14) ------------------------------------------------------------------------ r2710 | vasil | 2008-10-01 14:13:58 +0300 (Wed, 01 Oct 2008) | 6 lines Changed paths: M /branches/5.1/include/sync0sync.ic branches/5.1: Silence a compilation warning in UNIV_DEBUG. Approved by: Marko (via IM) ------------------------------------------------------------------------ r2719 | vasil | 2008-10-03 18:17:28 +0300 (Fri, 03 Oct 2008) | 49 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc A /branches/5.1/mysql-test/innodb_bug39438-master.opt A /branches/5.1/mysql-test/innodb_bug39438.result A /branches/5.1/mysql-test/innodb_bug39438.test branches/5.1: Fix Bug#39438 Testcase for Bug#39436 crashes on 5.1 in fil_space_get_latch In ha_innobase::info() - do not try to get the free space for a tablespace which has been discarded with ALTER TABLE ... DISCARD TABLESPACE or if the .ibd file is missing for some other reason. ibd_file_missing and tablespace_discarded are manipulated only in row_discard_tablespace_for_mysql() and in row_import_tablespace_for_mysql() and the manipulation is protected/surrounded by row_mysql_lock_data_dictionary()/row_mysql_unlock_data_dictionary() thus we do the same in ha_innobase::info() when checking the values of those members to avoid race conditions. I have tested the code-path with UNIV_DEBUG and UNIV_SYNC_DEBUG. Looks like it is not possible to avoid mysqld printing warnings in the mysql-test case and thus this test innodb_bug39438 must be added to the list of exceptional test cases that are allowed to print warnings. For this, the following patch must be applied to the mysql source tree: --- cut --- === modified file 'mysql-test/lib/mtr_report.pl' --- mysql-test/lib/mtr_report.pl 2008-08-12 10:26:23 +0000 +++ mysql-test/lib/mtr_report.pl 2008-10-01 11:57:41 +0000 @@ -412,7 +412,10 @@ # When trying to set lower_case_table_names = 2 # on a case sensitive file system. Bug#37402. - /lower_case_table_names was set to 2, even though your the file system '.*' is case sensitive. Now setting lower_case_table_names to 0 to avoid future problems./ + /lower_case_table_names was set to 2, even though your the file system '.*' is case sensitive. Now setting lower_case_table_names to 0 to avoid future problems./ or + + # this test is expected to print warnings + ($testname eq 'main.innodb_bug39438') ) { next; # Skip these lines --- cut --- The mysql-test is currently somewhat disabled (see inside innodb_bug39438.test), after the above patch has been applied to the mysql source tree, the test can be enabled. rb://20 Reviewed by: Inaam, Calvin Approved by: Heikki ------------------------------------------------------------------------ r2720 | vasil | 2008-10-03 19:52:39 +0300 (Fri, 03 Oct 2008) | 8 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: Print a warning if an attempt is made to get the free space for a table whose .ibd file is missing or the tablespace has been discarded. This is a followup to r2719. Suggested by: Inaam ------------------------------------------------------------------------ r2721 | sunny | 2008-10-04 02:08:23 +0300 (Sat, 04 Oct 2008) | 6 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: We need to send the messages to the client because handler::get_auto_increment() doesn't allow a way to return the specific error for why it failed. rb://18 ------------------------------------------------------------------------ r2722 | sunny | 2008-10-04 02:48:04 +0300 (Sat, 04 Oct 2008) | 18 lines Changed paths: M /branches/5.1/dict/dict0mem.c M /branches/5.1/handler/ha_innodb.cc M /branches/5.1/include/dict0mem.h M /branches/5.1/include/row0mysql.h M /branches/5.1/mysql-test/innodb-autoinc.result M /branches/5.1/mysql-test/innodb-autoinc.test M /branches/5.1/row/row0mysql.c branches/5.1: This bug has always existed but was masked by other errors. The fix for bug# 38839 triggered this bug. When the offset and increment are > 1 we need to calculate the next value taking into consideration the two variables. Previously we simply assumed they were 1 particularly offset was never used. MySQL does its own calculation and that's probably why it seemed to work in the past. We would return what we thought was the correct next value and then MySQL would recalculate the actual value from that and return it to the caller (e.g., handler::write_row()). Several new tests have been added that try and catch some edge cases. The tests exposed a wrap around error in MySQL next value calculation which was filed as bug#39828. The tests will need to be updated once MySQL fix that bug. One good side effect of this fix is that dict_table_t size has been reduced by 8 bytes because we have moved the autoinc_increment field to the row_prebuilt_t structure. See review-board for a detailed discussion. rb://3 ------------------------------------------------------------------------
2008-10-04 03:22:36 +00:00
lock_remove_all_on_table(
/*=====================*/
dict_table_t* table, /* in: table to be dropped
or truncated */
ibool remove_also_table_sx_locks);/* in: also removes
table S and X locks */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Calculates the fold value of a page file address: used in inserting or
searching for a lock in the hash table. */
UNIV_INLINE
ulint
lock_rec_fold(
branches/zip: Merge revisions 200:236 from trunk.
2006-02-23 19:25:29 +00:00
/*==========*/
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/* out: folded value */
ulint space, /* in: space */
branches/zip: Add __attribute__((const)) or __attribute__((pure)) to all fold functions.
2007-01-03 12:34:54 +00:00
ulint page_no)/* in: page number */
__attribute__((const));
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Calculates the hash value of a page file address: used in inserting or
searching for a lock in the hash table. */
UNIV_INLINE
ulint
lock_rec_hash(
/*==========*/
/* out: hashed value */
ulint space, /* in: space */
ulint page_no);/* in: page number */
branches/zip: Move lock_rec_find_set_bit() from lock0priv.h to lock0lock.h. This function is needed in the INFORMATION_SCHEMA implementation which currently resides in trx/ Approved by: Marko
2007-09-03 09:08:25 +00:00
/**************************************************************************
Looks for a set bit in a record lock bitmap. Returns ULINT_UNDEFINED,
if none found. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
branches/zip: Move lock_rec_find_set_bit() from lock0priv.h to lock0lock.h. This function is needed in the INFORMATION_SCHEMA implementation which currently resides in trx/ Approved by: Marko
2007-09-03 09:08:25 +00:00
ulint
lock_rec_find_set_bit(
/*==================*/
/* out: bit index == heap number of
the record, or ULINT_UNDEFINED if none found */
const lock_t* lock); /* in: record lock with at least one bit set */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Gets the source table of an ALTER TABLE transaction. The table must be
covered by an IX or IS table lock. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
dict_table_t*
lock_get_src_table(
/*===============*/
/* out: the source table of transaction,
if it is covered by an IX or IS table lock;
dest if there is no source table, and
NULL if the transaction is locking more than
two tables or an inconsistency is found */
trx_t* trx, /* in: transaction */
dict_table_t* dest, /* in: destination of ALTER TABLE */
branches/zip: Simplify lock_mode_stronger_or_eq() and lock_mode_compatible() and introduce enum lock_mode. lock_mode_stronger_or_eq(), lock_mode_compatible(): Replace if-then-else chain with a bitwise and against a constant.
2007-02-01 20:56:23 +00:00
enum lock_mode* mode); /* out: lock mode of the source table */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Determine if the given table is exclusively "owned" by the given
transaction, i.e., transaction holds LOCK_IX and possibly LOCK_AUTO_INC
on the table. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ibool
lock_is_table_exclusive(
/*====================*/
/* out: TRUE if table is only locked by trx,
with LOCK_IX, and possibly LOCK_AUTO_INC */
dict_table_t* table, /* in: table */
trx_t* trx); /* in: transaction */
/*************************************************************************
branches/zip: Merge 1575:1664 from trunk.
2007-08-01 11:18:43 +00:00
Checks if a lock request lock1 has to wait for request lock2. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
branches/zip: Merge 1575:1664 from trunk.
2007-08-01 11:18:43 +00:00
ibool
lock_has_to_wait(
/*=============*/
/* out: TRUE if lock1 has to wait for
lock2 to be removed */
const lock_t* lock1, /* in: waiting lock */
const lock_t* lock2); /* in: another lock; NOTE that it is
assumed that this has a lock bit set
on the same record as in lock1 if the
locks are record locks */
/*************************************************************************
Import 5.0 code.
2005-10-27 07:29:40 +00:00
Checks that a transaction id is sensible, i.e., not in the future. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
ibool
lock_check_trx_id_sanity(
/*=====================*/
/* out: TRUE if ok */
dulint trx_id, /* in: trx id */
branches/zip: Remove all buf_block_align() calls from lock0lock.c. Replace all page_t* parameters with buf_block_t*, and replace many rec_t* parameters with heap_no. This eliminates also many rec_get_heap_no() calls, which became more expensive with the introduction of ROW_FORMAT=COMPACT in MySQL/InnoDB 5.0.3. page_rec_get_heap_no(), lock_get_min_heap_no(): New functions.
2006-10-24 06:45:52 +00:00
const rec_t* rec, /* in: user record */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
dict_index_t* index, /* in: clustered index */
const ulint* offsets, /* in: rec_get_offsets(rec, index) */
ibool has_kernel_mutex);/* in: TRUE if the caller owns the
kernel mutex */
/*************************************************************************
Prints info of a table lock. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_table_print(
/*=============*/
branches/zip: lock_rec_print(), lock_table_print(), lock_rec_get_prev(): Add a const qualifier to lock_t*.
2007-08-01 07:49:43 +00:00
FILE* file, /* in: file where to print */
const lock_t* lock); /* in: table type lock */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Prints info of a record lock. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_rec_print(
/*===========*/
branches/zip: lock_rec_print(), lock_table_print(), lock_rec_get_prev(): Add a const qualifier to lock_t*.
2007-08-01 07:49:43 +00:00
FILE* file, /* in: file where to print */
const lock_t* lock); /* in: record type lock */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/*************************************************************************
Prints info of locks for all transactions. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_print_info_summary(
/*====================*/
FILE* file); /* in: file where to print */
/*************************************************************************
Prints info of locks for each transaction. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Import 5.0 code.
2005-10-27 07:29:40 +00:00
void
lock_print_info_all_transactions(
/*=============================*/
FILE* file); /* in: file where to print */
/*************************************************************************
branches/zip: Merge revisions 265:459 from trunk.
2006-04-12 09:32:17 +00:00
Return approximate number or record locks (bits set in the bitmap) for
branches/zip: Merge 1575:1664 from trunk.
2007-08-01 11:18:43 +00:00
this transaction. Since delete-marked records may be removed, the
branches/zip: Merge revisions 265:459 from trunk.
2006-04-12 09:32:17 +00:00
record count will not be precise. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
branches/zip: Merge revisions 265:459 from trunk.
2006-04-12 09:32:17 +00:00
ulint
lock_number_of_rows_locked(
/*=======================*/
trx_t* trx); /* in: transaction */
branches/zip: 1. We add a vector of locks to trx_t. This array contains the autoinc locks granted to a transaction. There is one per table. 2. We enforce releasing of these locks in the reverse order from the one in which they are acquired. The assumption is that since the AUTOINC locks are statement level locks. Nested statements introduced by triggers are stacked it should hold. There was some cleanup done to the vector code too by adding const and some new functions. Rename dict_table_t::auto_inc_lock to autoinc_lock. Fix Bug#26316 Triggers create duplicate entries on auto-increment columns rb://22
2008-10-31 07:40:29 +00:00
/***********************************************************************
Release all the transaction's autoinc locks. */
UNIV_INTERN
void
lock_release_autoinc_locks(
/*=======================*/
trx_t* trx); /* in/out: transaction */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
lock_get_type() needs to be accessed outside of the lock module, but it is inline and accesses lock_t members. As advised by Marko rename lock_get_type() to lock_get_type_low() and create a public non-inline function lock_get_type() which calls lock_get_type_low(). Approved by: Marko
2007-09-04 07:54:29 +00:00
/***********************************************************************
Gets the type of a lock. Non-inline version for using outside of the
lock module. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
lock_get_type() needs to be accessed outside of the lock module, but it is inline and accesses lock_t members. As advised by Marko rename lock_get_type() to lock_get_type_low() and create a public non-inline function lock_get_type() which calls lock_get_type_low(). Approved by: Marko
2007-09-04 07:54:29 +00:00
ulint
lock_get_type(
/*==========*/
/* out: LOCK_TABLE or LOCK_REC */
const lock_t* lock); /* in: lock */
Add functions that retrieve some lock_t characteristics, needed in INFORMATION_SCHEMA implementation: lock_get_trx_id() lock_get_mode_str() lock_get_type_str() lock_get_table_id() lock_get_table_name() lock_rec_get_index_name() lock_rec_get_space_id() lock_rec_get_page_no() Approved by: Marko
2007-09-03 12:16:11 +00:00
/***********************************************************************
Gets the id of the transaction owning a lock. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Add functions that retrieve some lock_t characteristics, needed in INFORMATION_SCHEMA implementation: lock_get_trx_id() lock_get_mode_str() lock_get_type_str() lock_get_table_id() lock_get_table_name() lock_rec_get_index_name() lock_rec_get_space_id() lock_rec_get_page_no() Approved by: Marko
2007-09-03 12:16:11 +00:00
ullint
lock_get_trx_id(
/*============*/
/* out: transaction id */
const lock_t* lock); /* in: lock */
/***********************************************************************
Gets the mode of a lock in a human readable string.
The string should not be free()'d or modified. */
const char*
lock_get_mode_str(
/*==============*/
/* out: lock mode */
const lock_t* lock); /* in: lock */
/***********************************************************************
Gets the type of a lock in a human readable string.
The string should not be free()'d or modified. */
const char*
lock_get_type_str(
/*==============*/
/* out: lock type */
const lock_t* lock); /* in: lock */
/***********************************************************************
Gets the id of the table on which the lock is. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Add functions that retrieve some lock_t characteristics, needed in INFORMATION_SCHEMA implementation: lock_get_trx_id() lock_get_mode_str() lock_get_type_str() lock_get_table_id() lock_get_table_name() lock_rec_get_index_name() lock_rec_get_space_id() lock_rec_get_page_no() Approved by: Marko
2007-09-03 12:16:11 +00:00
ullint
lock_get_table_id(
/*==============*/
/* out: id of the table */
const lock_t* lock); /* in: lock */
/***********************************************************************
Gets the name of the table on which the lock is.
The string should not be free()'d or modified. */
const char*
lock_get_table_name(
/*================*/
/* out: name of the table */
const lock_t* lock); /* in: lock */
branches/zip: Add auxiliary function lock_rec_get_index() to retrieve the index on which the lock is. Approved by: Heikki
2007-09-27 13:54:21 +00:00
/***********************************************************************
For a record lock, gets the index on which the lock is. */
const dict_index_t*
lock_rec_get_index(
/*===============*/
/* out: index */
const lock_t* lock); /* in: lock */
Add functions that retrieve some lock_t characteristics, needed in INFORMATION_SCHEMA implementation: lock_get_trx_id() lock_get_mode_str() lock_get_type_str() lock_get_table_id() lock_get_table_name() lock_rec_get_index_name() lock_rec_get_space_id() lock_rec_get_page_no() Approved by: Marko
2007-09-03 12:16:11 +00:00
/***********************************************************************
For a record lock, gets the name of the index on which the lock is.
The string should not be free()'d or modified. */
const char*
lock_rec_get_index_name(
/*====================*/
/* out: name of the index */
const lock_t* lock); /* in: lock */
/***********************************************************************
For a record lock, gets the tablespace number on which the lock is. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Add functions that retrieve some lock_t characteristics, needed in INFORMATION_SCHEMA implementation: lock_get_trx_id() lock_get_mode_str() lock_get_type_str() lock_get_table_id() lock_get_table_name() lock_rec_get_index_name() lock_rec_get_space_id() lock_rec_get_page_no() Approved by: Marko
2007-09-03 12:16:11 +00:00
ulint
lock_rec_get_space_id(
/*==================*/
/* out: tablespace number */
const lock_t* lock); /* in: lock */
/***********************************************************************
For a record lock, gets the page number on which the lock is. */
branches/zip: Add a UNIV_INTERN qualifier to every global function declaration in *.h files, so that the function signatures in the *.h and *.c files fully match each other. ut_dulint_sort(): Add a UNIV_INTERN qualifier also to the function definition.
2008-02-18 18:38:33 +00:00
UNIV_INTERN
Add functions that retrieve some lock_t characteristics, needed in INFORMATION_SCHEMA implementation: lock_get_trx_id() lock_get_mode_str() lock_get_type_str() lock_get_table_id() lock_get_table_name() lock_rec_get_index_name() lock_rec_get_space_id() lock_rec_get_page_no() Approved by: Marko
2007-09-03 12:16:11 +00:00
ulint
lock_rec_get_page_no(
/*=================*/
/* out: page number */
const lock_t* lock); /* in: lock */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/* Lock modes and types */
#define LOCK_MODE_MASK 0xFUL /* mask used to extract mode from the
type_mode field in a lock */
/* Lock types */
#define LOCK_TABLE 16 /* these type values should be so high that */
#define LOCK_REC 32 /* they can be ORed to the lock mode */
#define LOCK_TYPE_MASK 0xF0UL /* mask used to extract lock type from the
type_mode field in a lock */
/* Waiting lock flag */
#define LOCK_WAIT 256 /* this wait bit should be so high that
it can be ORed to the lock mode and type;
when this bit is set, it means that the
lock has not yet been granted, it is just
waiting for its turn in the wait queue */
/* Precise modes */
#define LOCK_ORDINARY 0 /* this flag denotes an ordinary next-key lock
branches/zip: Merge revisions 200:236 from trunk.
2006-02-23 19:25:29 +00:00
in contrast to LOCK_GAP or LOCK_REC_NOT_GAP */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
#define LOCK_GAP 512 /* this gap bit should be so high that
it can be ORed to the other flags;
when this bit is set, it means that the
lock holds only on the gap before the record;
for instance, an x-lock on the gap does not
give permission to modify the record on which
the bit is set; locks of this type are created
when records are removed from the index chain
of records */
branches/zip: Merge revisions 200:236 from trunk.
2006-02-23 19:25:29 +00:00
#define LOCK_REC_NOT_GAP 1024 /* this bit means that the lock is only on
Import 5.0 code.
2005-10-27 07:29:40 +00:00
the index record and does NOT block inserts
to the gap before the index record; this is
used in the case when we retrieve a record
with a unique key, and is also used in
locking plain SELECTs (not part of UPDATE
or DELETE) when the user has set the READ
COMMITTED isolation level */
#define LOCK_INSERT_INTENTION 2048 /* this bit is set when we place a waiting
gap type record lock request in order to let
an insert of an index record to wait until
there are no conflicting locks by other
transactions on the gap; note that this flag
remains set when the waiting lock is granted,
or if the lock is inherited to a neighboring
record */
branches/zip: Merge revisions 200:236 from trunk.
2006-02-23 19:25:29 +00:00
Import 5.0 code.
2005-10-27 07:29:40 +00:00
/* When lock bits are reset, the following flags are available: */
#define LOCK_RELEASE_WAIT 1
#define LOCK_NOT_RELEASE_WAIT 2
/* Lock operation struct */
typedef struct lock_op_struct lock_op_t;
struct lock_op_struct{
dict_table_t* table; /* table to be locked */
branches/zip: Simplify lock_mode_stronger_or_eq() and lock_mode_compatible() and introduce enum lock_mode. lock_mode_stronger_or_eq(), lock_mode_compatible(): Replace if-then-else chain with a bitwise and against a constant.
2007-02-01 20:56:23 +00:00
enum lock_mode mode; /* lock mode */
Import 5.0 code.
2005-10-27 07:29:40 +00:00
};
#define LOCK_OP_START 1
#define LOCK_OP_COMPLETE 2
/* The lock system struct */
struct lock_sys_struct{
hash_table_t* rec_hash; /* hash table of the record locks */
};
/* The lock system */
extern lock_sys_t* lock_sys;
#ifndef UNIV_NONINL
#include "lock0lock.ic"
#endif
branches/zip: Merge revisions 200:236 from trunk.
2006-02-23 19:25:29 +00:00
#endif
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