mariadb/handler/i_s.cc
marko c1d4665514 branches/innodb+: Merge revisions 2867:2986 from branches/zip:
------------------------------------------------------------------------
  r2867 | marko | 2008-10-24 10:24:17 +0300 (Fri, 24 Oct 2008) | 2 lines

  branches/zip: ChangeLog: Document r2763, r2794, r2683, r2799, r2809, r2866.
  ------------------------------------------------------------------------
  r2869 | vasil | 2008-10-24 11:14:16 +0300 (Fri, 24 Oct 2008) | 4 lines

  branches/zip:

  White space cleanup in ChangeLog
  ------------------------------------------------------------------------
  r2870 | vasil | 2008-10-24 13:36:14 +0300 (Fri, 24 Oct 2008) | 8 lines

  branches/zip:

  Remove a statement that causes the innodb-index test to fail.

  The change in behavior was introduced in MySQL BZR-r2738.

  Suggested by:	Marko
  ------------------------------------------------------------------------
  r2871 | vasil | 2008-10-24 13:48:38 +0300 (Fri, 24 Oct 2008) | 5 lines

  branches/zip:

  Adjust mysql-test/patches/innodb-index.diff after the change to
  mysql-test/innodb-index.(test|result) in r2870.
  ------------------------------------------------------------------------
  r2878 | calvin | 2008-10-27 11:05:42 +0200 (Mon, 27 Oct 2008) | 8 lines

  branches/zip: port the fix of Bug#19424 - InnoDB: Possibly a memory
  overrun of the buffer being freed with 64-bit Microsoft Visual C++.

  The changed file:

  CMakeLists.txt: Removing Win64 compiler optimizations for all 
  innodb/mem/* files.
  ------------------------------------------------------------------------
  r2884 | vasil | 2008-10-27 11:48:46 +0200 (Mon, 27 Oct 2008) | 7 lines

  branches/zip:

  ChangeLog:

  Add entry for the fix of Bug#19424 InnoDB: Possibly a memory overrun of
  the buffer being freed (64-bit Visual C)
  ------------------------------------------------------------------------
  r2886 | calvin | 2008-10-27 22:39:11 +0200 (Mon, 27 Oct 2008) | 8 lines

  branches/zip: This patch is to solve the issue that file handles can
  not cross DLL/EXE boundaries on Windows. In builtin InnoDB, it makes
  call to MySQL server for creating tmp files. innobase_mysql_tmpfile
  is now rewritten for the plugin. 

  rb://5

  Approved by:	Marko
  ------------------------------------------------------------------------
  r2887 | calvin | 2008-10-27 22:48:29 +0200 (Mon, 27 Oct 2008) | 44 lines

  branches/zip: implement the delayloading of externals for the plugin
  on Windows, which includes:

   * Load mysqld.map and insert all symbol/address pairs into hash for
     quick access
   * Resolves all external data variables. The delayloading mechanism
     in MSVC does not support automatic imports of data variables.
     A workaround is to explicitly handle the data import using the delay
     loader during the initialization of the plugin.
   * Resolves all external functions during run-time, by implementing
     the delayed loading helper function delayLoadHelper2, which is
     called by run-time as well as HrLoadAllImportsForDll. 

  The delay loader reuses the hash implementation in InnoDB. The normal
  hash_create (in hash0hash.c) creates hash tables in buffer pool. But
  the delay loader is invoked before the engine is initialized, and 
  buffer pools are not ready yet. Instead, the delay loader has its own
  implementation of hash_create() and hash_table_free(), called
  wdl_hash_create() and wdl_hash_table_free().

  This patch should be used with other two patches in order to build
  a dynamically linked plugin on Windows:
   * patch for tmpfile functions (r2886)
   * patch for "build" files (to be committed)

  The list of file changed:

  handler/handler0vars.h: new file, defines a list of external data
  variables (no external functions).

  handler/win_delay_loader.cc: new file, the implementation of the delay
  loader for Windows plugin.

  handler/ha_innodb.cc: add a header file, and changes for copying the
  system variables.

  handler/handler0alter.cc: add a header file

  handler/i_s.cc: add a header file

  rb://27

  Reviewed by:	Sunny, Marko
  Approved by:	Sunny
  ------------------------------------------------------------------------
  r2888 | calvin | 2008-10-28 01:51:49 +0200 (Tue, 28 Oct 2008) | 25 lines

  branches/zip: for building dynamic plugin on Windows, ha_innodb.dll,
  when INNODB_DYNAMIC_PLUGIN is specified.

  The changes are:

  CMakeLists.txt: add project ha_innodb for dynamic plugin on Windows.
  ha_innodb depends on project mysqld.

  ha_innodb.def: a new file with standard exports for a dynamic plugin.

  Two new files will be added:
   * sql/mysqld.def:	.def file for 32-bit compiler
   * sql/mysqld_x64.def:	.def file for x64 compiler

  It is also required to apply a patch to the MySQL source tree. The 
  patch is described in win-plugin/README:

  win-plugin/win-plugin.diff - a patch to be applied to MySQL source
  tree. When applied, the following files will be modified:
   * CMakeLists.txt:	add INNODB_DYNAMIC_PLUGIN and _USE_32BIT_TIME_T
   * sql/CMakeLists.txt:	add mysqld.def or mysqld_x64.def for mysqld
   * win/configure.js:	add INNODB_DYNAMIC_PLUGIN
   * win/build-vs71.bat:	provide an option to specify CMAKE_BUILD_TYPE
   * win/build-vs8.bat:	provide an option to specify CMAKE_BUILD_TYPE
   * win/build-vs8_x64.bat: provide an option to specify CMAKE_BUILD_TYPE
  ------------------------------------------------------------------------
  r2894 | marko | 2008-10-28 08:36:39 +0200 (Tue, 28 Oct 2008) | 4 lines

  branches/zip: dict_str_starts_with_keyword(): Removed this unused function.

  Spotted by Sunny.
  ------------------------------------------------------------------------
  r2895 | vasil | 2008-10-28 08:40:45 +0200 (Tue, 28 Oct 2008) | 6 lines

  branches/zip:

  ChangeLog:

  add entry for the Windows plugin.
  ------------------------------------------------------------------------
  r2917 | marko | 2008-10-28 23:53:23 +0200 (Tue, 28 Oct 2008) | 3 lines

  branches/zip: innodb_plugin_init(): Do not copy session variables,
  even when the variable is a global variable in the built-in InnoDB.
  ------------------------------------------------------------------------
  r2918 | calvin | 2008-10-29 00:08:11 +0200 (Wed, 29 Oct 2008) | 2 lines

  branches/zip: fix a problem introduced in r2917 - dyn is not
  initialized. Move the check into for().
  ------------------------------------------------------------------------
  r2922 | calvin | 2008-10-29 08:29:01 +0200 (Wed, 29 Oct 2008) | 16 lines

  branches/zip: fix issue #102 - Windows plugin: resolve dbug functions
  during run-time.

  Implement wrapper functions in the plugin. The plugin will get the
  function entries from mysqld.exe during the init, and invoke the
  corresponding functions (in mysqld.exe). The list of functions are:

  	_db_pargs_
  	_db_doprnt_
  	_db_enter_
  	_db_return_
  	_db_dump_

  rb://38

  Approved by:	Marko
  ------------------------------------------------------------------------
  r2923 | marko | 2008-10-29 09:52:30 +0200 (Wed, 29 Oct 2008) | 1 line

  branches/zip: ChangeLog: Mention Bug #27276.
  ------------------------------------------------------------------------
  r2925 | calvin | 2008-10-29 10:09:41 +0200 (Wed, 29 Oct 2008) | 16 lines

  branches/zip: change function names in sql/mysqld.def in order
  to work with 5.1.29-rc.

  In 5.1.29, the following function names are changed:
    _hash_init
    hash_free
    hash_search
    hash_delete

  changed to
    _my_hash_init
    my_hash_free
    my_hash_search
    my_hash_delete

  Approved by:	Marko (on IM)
  ------------------------------------------------------------------------
  r2927 | marko | 2008-10-29 11:43:23 +0200 (Wed, 29 Oct 2008) | 4 lines

  branches/zip: ha_innodb.cc: Make some functions static, so that they will
  not be compiled as weak global symbols.  These functions must not be
  redirected to the built-in InnoDB.
  ------------------------------------------------------------------------
  r2928 | michael | 2008-10-29 19:20:10 +0200 (Wed, 29 Oct 2008) | 4 lines

  Remove unnecessary assert

  Approved by: Heikki, over IM
  ------------------------------------------------------------------------
  r2930 | marko | 2008-10-29 21:39:24 +0200 (Wed, 29 Oct 2008) | 33 lines

  branches/zip: Merge revisions 2854:2929 from branches/5.1,
  except r2924, which was merged from branches/zip r2866 to branches/5.1
  and except r2879 which was merged separately by Calvin:

    ------------------------------------------------------------------------
    r2902 | vasil | 2008-10-28 12:10:25 +0200 (Tue, 28 Oct 2008) | 10 lines

    branches/5.1:

    Fix Bug#38189 innodb_stats_on_metadata missing

    Make the variable innodb_stats_on_metadata visible to the users and
    also settable at runtime. Previously it was only "visible" as a command
    line startup option to mysqld.

    Approved by:    Marko (https://svn.innodb.com/rb/r/36)
    ------------------------------------------------------------------------
    r2929 | marko | 2008-10-29 21:26:14 +0200 (Wed, 29 Oct 2008) | 13 lines

    branches/5.1: dtype_get_sql_null_size(): return the correct storage
    size of a SQL NULL column. (Bug #40369)

    When MySQL Bug #20877 was fixed in r834, this function was
    accidentally modified to return 0 or 1. Apparently, the only impact of
    this bug is that fixed-length columns cannot be updated in-place from
    or to SQL NULL, even in ROW_FORMAT=REDUNDANT.  After this fix,
    fixed-length columns in ROW_FORMAT=REDUNDANT will have a constant
    storage size as they should, no matter if NULL or non-NULL.  The bug
    caused fixed-length NULL columns to occupy 1 byte.

    rb://37 approved by Heikki over IM.
    ------------------------------------------------------------------------

  ------------------------------------------------------------------------
  r2931 | vasil | 2008-10-29 22:10:40 +0200 (Wed, 29 Oct 2008) | 4 lines

  branches/zip:

  Add 2 ChangeLog entries for the 2 bugfixes that were merged from branches/5.1.
  ------------------------------------------------------------------------
  r2935 | vasil | 2008-10-30 12:17:23 +0200 (Thu, 30 Oct 2008) | 17 lines

  branches/zip:

  Fix "Bug#40360 Binlog related errors with binlog off" in InnoDB code in order
  to have a Bug#40360-free InnoDB Plugin 1.0.2.

  The fix does check whether binary logging is enabled in MySQL by accessing the
  opt_bin_log global variable that is defined in sql/mysqld.cc.

  In case MySQL does develop another solution to this via Bug#40360 then we can
  revert this patch (except the mysql-tests).

  The windows-plugin part of this fix will be committed as a separate commit to
  ease eventual merge into branches/5.1 [note from the future: the separate
  commit went into r2936].

  Approved by:	Marko (https://svn.innodb.com/rb/r/39)
  ------------------------------------------------------------------------
  r2936 | vasil | 2008-10-30 12:24:09 +0200 (Thu, 30 Oct 2008) | 7 lines

  branches/zip:

  Followup to r2935: add the Windows Delay Loader stuff for the MySQL
  variable that we are accessing. If someday we have another solution for
  Bug#40360 Binlog related errors with binlog off
  then this should also be reverted.
  ------------------------------------------------------------------------
  r2937 | vasil | 2008-10-30 12:28:47 +0200 (Thu, 30 Oct 2008) | 4 lines

  branches/zip:

  Add ChangeLog entry for Bug#40360 Binlog related errors with binlog off
  ------------------------------------------------------------------------
  r2938 | vasil | 2008-10-30 12:33:28 +0200 (Thu, 30 Oct 2008) | 5 lines

  branches/zip:

  Non-functional change: convert handler/handler0vars.h and
  handler/win_delay_loader.cc from \r\n (dos) to \n (unix) line terminators.
  ------------------------------------------------------------------------
  r2939 | marko | 2008-10-30 12:38:18 +0200 (Thu, 30 Oct 2008) | 2 lines

  branches/zip: Set svn:eol-style native on some recently added text files.
  ------------------------------------------------------------------------
  r2940 | marko | 2008-10-30 12:46:21 +0200 (Thu, 30 Oct 2008) | 1 line

  branches/zip: ChangeLog, ha_innodb.def: Set svn:eol-style native
  ------------------------------------------------------------------------
  r2941 | vasil | 2008-10-30 19:34:27 +0200 (Thu, 30 Oct 2008) | 4 lines

  branches/zip:

  Increment the InnoDB Plugin version from 1.0.1 to 1.0.2.
  ------------------------------------------------------------------------
  r2943 | sunny | 2008-10-31 09:40:29 +0200 (Fri, 31 Oct 2008) | 15 lines

  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
  ------------------------------------------------------------------------
  r2944 | vasil | 2008-10-31 09:44:16 +0200 (Fri, 31 Oct 2008) | 12 lines

  branches/zip:

  Revert our temporary fix for "Bug#40360 Binlog related errors with binlog off"
  (r2935, r2936) and deploy MySQL's one, but put the function
  mysql_bin_log_is_engaged() inside mysql_addons.cc instead of in mysql's log.cc
  and use a different name for it so there is no collision when MySQL adds this
  function in log.cc.

  [note from the future: the windows part of this patch went into r2947]

  Approved by:	Marko (https://svn.innodb.com/rb/r/41/)
  ------------------------------------------------------------------------
  r2945 | sunny | 2008-10-31 09:44:45 +0200 (Fri, 31 Oct 2008) | 2 lines

  branches/zip: Update ChangeLog with r2943 info.
  ------------------------------------------------------------------------
  r2946 | marko | 2008-10-31 10:18:47 +0200 (Fri, 31 Oct 2008) | 2 lines

  branches/zip: Revert the unintended change to univ.i that was made in r2943.
  ------------------------------------------------------------------------
  r2947 | calvin | 2008-10-31 10:38:26 +0200 (Fri, 31 Oct 2008) | 6 lines

  branches/zip: Windows plugin part of r2944

  r2944 has reference to mysql_bin_log.is_open(), which is new in InnoDB.
  Add two new entries and remove one duplicate in mysqld.def & 
  mysqld_x64.def.
  ------------------------------------------------------------------------
  r2948 | vasil | 2008-10-31 11:39:07 +0200 (Fri, 31 Oct 2008) | 9 lines

  branches/zip:

  Fix Mantis issue#106 plugin init error:InnoDB: stats_on_metadata in static
  InnoDB (flags=0x2401) differs from stats_on_metadata in dynamic InnoDB (fl

  Ignore the NOSYSVAR flag in addition to ignoring the READONLY flag.

  Approved by:	Marko (https://svn.innodb.com/rb/r/42/)
  ------------------------------------------------------------------------
  r2949 | vasil | 2008-10-31 11:47:56 +0200 (Fri, 31 Oct 2008) | 4 lines

  branches/zip:

  White-space cleanup in ChangeLog.
  ------------------------------------------------------------------------
  r2951 | marko | 2008-10-31 14:21:43 +0200 (Fri, 31 Oct 2008) | 4 lines

  branches/zip: scripts/install_innodb_plugins_win.sql: New script,
  for installing the InnoDB plugins in Windows.  Copied from
  scripts/install_innodb_plugins.sql.
  ------------------------------------------------------------------------
  r2954 | calvin | 2008-11-04 09:15:26 +0200 (Tue, 04 Nov 2008) | 8 lines

  branches/zip: ignore the failure when builtin_innobase_plugin is not
  available.

  External variable builtin_innobase_plugin is not available when mysqld
  does not have a builtin InnoDB. The init of the Windows plugin should
  not fail in this case. 

  Approved by:	Marko (on IM)
  ------------------------------------------------------------------------
  r2955 | calvin | 2008-11-04 12:43:14 +0200 (Tue, 04 Nov 2008) | 11 lines

  branches/zip: windows plugin - fix references to array variables.

  This problem surfaced when running new test innodb_bug40360.test. Both
  tx_isolation_names and binlog_format_names are name arrays, and
  should be defined as wdl_tx_isolation_names and wdl_binlog_format_names,
  not *wdl_tx_isolation_names and *wdl_binlog_format_names.

  Another array variable is all_charsets, which is already correctly
  defined.

  Approved by:	Marko (on IM)
  ------------------------------------------------------------------------
  r2986 | marko | 2008-11-11 09:28:37 +0200 (Tue, 11 Nov 2008) | 11 lines

  branches/zip: ha_innobase::create(): Remove the dependences on
  DICT_TF_ZSSIZE_MAX, so that the code can be compiled with a different
  uncompressed page size by redefining UNIV_PAGE_SIZE_SHIFT in univ.i.
  Currently, the allowed values are 12, 13, or 14 (4k, 8k, 16k).

  Make the default compressed page size half the uncompressed page size.
  The previous default was 8 kilobytes, which is the same when compiling
  with the default 16k uncompressed page size.

  rb://50 approved by Pekka Lampio and Sunny Bains.
  ------------------------------------------------------------------------
2008-11-11 10:21:16 +00:00

1560 lines
41 KiB
C++

/******************************************************
InnoDB INFORMATION SCHEMA tables interface to MySQL.
(c) 2007 Innobase Oy
Created July 18, 2007 Vasil Dimov
*******************************************************/
#include <mysql_priv.h>
#include <mysqld_error.h>
#include <m_ctype.h>
#include <hash.h>
#include <myisampack.h>
#include <mysys_err.h>
#include <my_sys.h>
#include "i_s.h"
#include <mysql/plugin.h>
extern "C" {
#include "trx0i_s.h"
#include "trx0trx.h" /* for TRX_QUE_STATE_STR_MAX_LEN */
#include "buf0buddy.h" /* for i_s_cmpmem */
#include "buf0buf.h" /* for buf_pool and PAGE_ZIP_MIN_SIZE */
#include "ha_prototypes.h" /* for innobase_convert_name() */
#include "srv0start.h" /* for srv_was_started */
}
#include "handler0vars.h"
static const char plugin_author[] = "Innobase Oy";
#define OK(expr) \
if ((expr) != 0) { \
DBUG_RETURN(1); \
}
#define RETURN_IF_INNODB_NOT_STARTED(plugin_name) \
do { \
if (!srv_was_started) { \
push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN, \
ER_CANT_FIND_SYSTEM_REC, \
"InnoDB: SELECTing from " \
"INFORMATION_SCHEMA.%s but " \
"the InnoDB storage engine " \
"is not installed", plugin_name); \
DBUG_RETURN(0); \
} \
} while (0)
#if !defined __STRICT_ANSI__ && defined __GNUC__ && (__GNUC__) > 2 && !defined __INTEL_COMPILER
#define STRUCT_FLD(name, value) name: value
#else
#define STRUCT_FLD(name, value) value
#endif
static const ST_FIELD_INFO END_OF_ST_FIELD_INFO =
{STRUCT_FLD(field_name, NULL),
STRUCT_FLD(field_length, 0),
STRUCT_FLD(field_type, MYSQL_TYPE_NULL),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)};
/*
Use the following types mapping:
C type ST_FIELD_INFO::field_type
---------------------------------
long MYSQL_TYPE_LONGLONG
(field_length=MY_INT64_NUM_DECIMAL_DIGITS)
long unsigned MYSQL_TYPE_LONGLONG
(field_length=MY_INT64_NUM_DECIMAL_DIGITS, field_flags=MY_I_S_UNSIGNED)
char* MYSQL_TYPE_STRING
(field_length=n)
float MYSQL_TYPE_FLOAT
(field_length=0 is ignored)
void* MYSQL_TYPE_LONGLONG
(field_length=MY_INT64_NUM_DECIMAL_DIGITS, field_flags=MY_I_S_UNSIGNED)
boolean (if else) MYSQL_TYPE_LONG
(field_length=1)
time_t MYSQL_TYPE_DATETIME
(field_length=0 ignored)
---------------------------------
*/
/* XXX these are defined in mysql_priv.h inside #ifdef MYSQL_SERVER */
bool schema_table_store_record(THD *thd, TABLE *table);
void localtime_to_TIME(MYSQL_TIME *to, struct tm *from);
bool check_global_access(THD *thd, ulong want_access);
/***********************************************************************
Common function to fill any of the dynamic tables:
INFORMATION_SCHEMA.innodb_trx
INFORMATION_SCHEMA.innodb_locks
INFORMATION_SCHEMA.innodb_lock_waits */
static
int
trx_i_s_common_fill_table(
/*======================*/
/* out: 0 on success */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond); /* in: condition (not used) */
/***********************************************************************
Unbind a dynamic INFORMATION_SCHEMA table. */
static
int
i_s_common_deinit(
/*==============*/
/* out: 0 on success */
void* p); /* in/out: table schema object */
/***********************************************************************
Auxiliary function to store time_t value in MYSQL_TYPE_DATETIME
field. */
static
int
field_store_time_t(
/*===============*/
/* out: 0 on success */
Field* field, /* in/out: target field for storage */
time_t time) /* in: value to store */
{
MYSQL_TIME my_time;
struct tm tm_time;
#if 0
/* use this if you are sure that `variables' and `time_zone'
are always initialized */
thd->variables.time_zone->gmt_sec_to_TIME(
&my_time, (my_time_t) time);
#else
localtime_r(&time, &tm_time);
localtime_to_TIME(&my_time, &tm_time);
my_time.time_type = MYSQL_TIMESTAMP_DATETIME;
#endif
return(field->store_time(&my_time, MYSQL_TIMESTAMP_DATETIME));
}
/***********************************************************************
Auxiliary function to store char* value in MYSQL_TYPE_STRING field. */
static
int
field_store_string(
/*===============*/
/* out: 0 on success */
Field* field, /* in/out: target field for storage */
const char* str) /* in: NUL-terminated utf-8 string,
or NULL */
{
int ret;
if (str != NULL) {
ret = field->store(str, strlen(str),
system_charset_info);
field->set_notnull();
} else {
ret = 0; /* success */
field->set_null();
}
return(ret);
}
/***********************************************************************
Auxiliary function to store ulint value in MYSQL_TYPE_LONGLONG field.
If the value is ULINT_UNDEFINED then the field it set to NULL. */
static
int
field_store_ulint(
/*==============*/
/* out: 0 on success */
Field* field, /* in/out: target field for storage */
ulint n) /* in: value to store */
{
int ret;
if (n != ULINT_UNDEFINED) {
ret = field->store(n);
field->set_notnull();
} else {
ret = 0; /* success */
field->set_null();
}
return(ret);
}
/* Fields of the dynamic table INFORMATION_SCHEMA.innodb_trx */
static ST_FIELD_INFO innodb_trx_fields_info[] =
{
#define IDX_TRX_ID 0
{STRUCT_FLD(field_name, "trx_id"),
STRUCT_FLD(field_length, TRX_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_TRX_STATE 1
{STRUCT_FLD(field_name, "trx_state"),
STRUCT_FLD(field_length, TRX_QUE_STATE_STR_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_TRX_STARTED 2
{STRUCT_FLD(field_name, "trx_started"),
STRUCT_FLD(field_length, 0),
STRUCT_FLD(field_type, MYSQL_TYPE_DATETIME),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_TRX_REQUESTED_LOCK_ID 3
{STRUCT_FLD(field_name, "trx_requested_lock_id"),
STRUCT_FLD(field_length, TRX_I_S_LOCK_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_TRX_WAIT_STARTED 4
{STRUCT_FLD(field_name, "trx_wait_started"),
STRUCT_FLD(field_length, 0),
STRUCT_FLD(field_type, MYSQL_TYPE_DATETIME),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_TRX_WEIGHT 5
{STRUCT_FLD(field_name, "trx_weight"),
STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_UNSIGNED),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_TRX_MYSQL_THREAD_ID 6
{STRUCT_FLD(field_name, "trx_mysql_thread_id"),
STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_UNSIGNED),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_TRX_QUERY 7
{STRUCT_FLD(field_name, "trx_query"),
STRUCT_FLD(field_length, TRX_I_S_TRX_QUERY_MAX_LEN),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
END_OF_ST_FIELD_INFO
};
/***********************************************************************
Read data from cache buffer and fill the INFORMATION_SCHEMA.innodb_trx
table with it. */
static
int
fill_innodb_trx_from_cache(
/*=======================*/
/* out: 0 on success */
trx_i_s_cache_t* cache, /* in: cache to read from */
THD* thd, /* in: used to call
schema_table_store_record() */
TABLE* table) /* in/out: fill this table */
{
Field** fields;
ulint rows_num;
char lock_id[TRX_I_S_LOCK_ID_MAX_LEN + 1];
ulint i;
DBUG_ENTER("fill_innodb_trx_from_cache");
fields = table->field;
rows_num = trx_i_s_cache_get_rows_used(cache,
I_S_INNODB_TRX);
for (i = 0; i < rows_num; i++) {
i_s_trx_row_t* row;
char trx_id[TRX_ID_MAX_LEN + 1];
row = (i_s_trx_row_t*)
trx_i_s_cache_get_nth_row(
cache, I_S_INNODB_TRX, i);
/* trx_id */
ut_snprintf(trx_id, sizeof(trx_id), TRX_ID_FMT, row->trx_id);
OK(field_store_string(fields[IDX_TRX_ID], trx_id));
/* trx_state */
OK(field_store_string(fields[IDX_TRX_STATE],
row->trx_state));
/* trx_started */
OK(field_store_time_t(fields[IDX_TRX_STARTED],
(time_t) row->trx_started));
/* trx_requested_lock_id */
/* trx_wait_started */
if (row->trx_wait_started != 0) {
OK(field_store_string(
fields[IDX_TRX_REQUESTED_LOCK_ID],
trx_i_s_create_lock_id(
row->requested_lock_row,
lock_id, sizeof(lock_id))));
/* field_store_string() sets it no notnull */
OK(field_store_time_t(
fields[IDX_TRX_WAIT_STARTED],
(time_t) row->trx_wait_started));
fields[IDX_TRX_WAIT_STARTED]->set_notnull();
} else {
fields[IDX_TRX_REQUESTED_LOCK_ID]->set_null();
fields[IDX_TRX_WAIT_STARTED]->set_null();
}
/* trx_weight */
OK(fields[IDX_TRX_WEIGHT]->store((longlong) row->trx_weight,
true));
/* trx_mysql_thread_id */
OK(fields[IDX_TRX_MYSQL_THREAD_ID]->store(
row->trx_mysql_thread_id));
/* trx_query */
OK(field_store_string(fields[IDX_TRX_QUERY],
row->trx_query));
OK(schema_table_store_record(thd, table));
}
DBUG_RETURN(0);
}
/***********************************************************************
Bind the dynamic table INFORMATION_SCHEMA.innodb_trx */
static
int
innodb_trx_init(
/*============*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
ST_SCHEMA_TABLE* schema;
DBUG_ENTER("innodb_trx_init");
schema = (ST_SCHEMA_TABLE*) p;
schema->fields_info = innodb_trx_fields_info;
schema->fill_table = trx_i_s_common_fill_table;
DBUG_RETURN(0);
}
static struct st_mysql_information_schema i_s_info =
{
MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION
};
UNIV_INTERN struct st_mysql_plugin i_s_innodb_trx =
{
/* the plugin type (a MYSQL_XXX_PLUGIN value) */
/* int */
STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
/* pointer to type-specific plugin descriptor */
/* void* */
STRUCT_FLD(info, &i_s_info),
/* plugin name */
/* const char* */
STRUCT_FLD(name, "INNODB_TRX"),
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(author, plugin_author),
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(descr, "InnoDB transactions"),
/* the plugin license (PLUGIN_LICENSE_XXX) */
/* int */
STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
/* the function to invoke when plugin is loaded */
/* int (*)(void*); */
STRUCT_FLD(init, innodb_trx_init),
/* the function to invoke when plugin is unloaded */
/* int (*)(void*); */
STRUCT_FLD(deinit, i_s_common_deinit),
/* plugin version (for SHOW PLUGINS) */
/* unsigned int */
STRUCT_FLD(version, INNODB_VERSION_SHORT),
/* struct st_mysql_show_var* */
STRUCT_FLD(status_vars, NULL),
/* struct st_mysql_sys_var** */
STRUCT_FLD(system_vars, NULL),
/* reserved for dependency checking */
/* void* */
STRUCT_FLD(__reserved1, NULL)
};
/* Fields of the dynamic table INFORMATION_SCHEMA.innodb_locks */
static ST_FIELD_INFO innodb_locks_fields_info[] =
{
#define IDX_LOCK_ID 0
{STRUCT_FLD(field_name, "lock_id"),
STRUCT_FLD(field_length, TRX_I_S_LOCK_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_TRX_ID 1
{STRUCT_FLD(field_name, "lock_trx_id"),
STRUCT_FLD(field_length, TRX_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_MODE 2
{STRUCT_FLD(field_name, "lock_mode"),
/* S[,GAP] X[,GAP] IS[,GAP] IX[,GAP] AUTO_INC UNKNOWN */
STRUCT_FLD(field_length, 32),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_TYPE 3
{STRUCT_FLD(field_name, "lock_type"),
STRUCT_FLD(field_length, 32 /* RECORD|TABLE|UNKNOWN */),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_TABLE 4
{STRUCT_FLD(field_name, "lock_table"),
STRUCT_FLD(field_length, 1024),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_INDEX 5
{STRUCT_FLD(field_name, "lock_index"),
STRUCT_FLD(field_length, 1024),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_SPACE 6
{STRUCT_FLD(field_name, "lock_space"),
STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_UNSIGNED | MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_PAGE 7
{STRUCT_FLD(field_name, "lock_page"),
STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_UNSIGNED | MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_REC 8
{STRUCT_FLD(field_name, "lock_rec"),
STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_UNSIGNED | MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_LOCK_DATA 9
{STRUCT_FLD(field_name, "lock_data"),
STRUCT_FLD(field_length, TRX_I_S_LOCK_DATA_MAX_LEN),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
END_OF_ST_FIELD_INFO
};
/***********************************************************************
Read data from cache buffer and fill the INFORMATION_SCHEMA.innodb_locks
table with it. */
static
int
fill_innodb_locks_from_cache(
/*=========================*/
/* out: 0 on success */
trx_i_s_cache_t* cache, /* in: cache to read from */
THD* thd, /* in: MySQL client connection */
TABLE* table) /* in/out: fill this table */
{
Field** fields;
ulint rows_num;
char lock_id[TRX_I_S_LOCK_ID_MAX_LEN + 1];
ulint i;
DBUG_ENTER("fill_innodb_locks_from_cache");
fields = table->field;
rows_num = trx_i_s_cache_get_rows_used(cache,
I_S_INNODB_LOCKS);
for (i = 0; i < rows_num; i++) {
i_s_locks_row_t* row;
/* note that the decoded database or table name is
never expected to be longer than NAME_LEN;
NAME_LEN for database name
2 for surrounding quotes around database name
NAME_LEN for table name
2 for surrounding quotes around table name
1 for the separating dot (.)
9 for the #mysql50# prefix */
char buf[2 * NAME_LEN + 14];
const char* bufend;
char lock_trx_id[TRX_ID_MAX_LEN + 1];
row = (i_s_locks_row_t*)
trx_i_s_cache_get_nth_row(
cache, I_S_INNODB_LOCKS, i);
/* lock_id */
trx_i_s_create_lock_id(row, lock_id, sizeof(lock_id));
OK(field_store_string(fields[IDX_LOCK_ID],
lock_id));
/* lock_trx_id */
ut_snprintf(lock_trx_id, sizeof(lock_trx_id),
TRX_ID_FMT, row->lock_trx_id);
OK(field_store_string(fields[IDX_LOCK_TRX_ID], lock_trx_id));
/* lock_mode */
OK(field_store_string(fields[IDX_LOCK_MODE],
row->lock_mode));
/* lock_type */
OK(field_store_string(fields[IDX_LOCK_TYPE],
row->lock_type));
/* lock_table */
bufend = innobase_convert_name(buf, sizeof(buf),
row->lock_table,
strlen(row->lock_table),
thd, TRUE);
OK(fields[IDX_LOCK_TABLE]->store(buf, bufend - buf,
system_charset_info));
/* lock_index */
if (row->lock_index != NULL) {
bufend = innobase_convert_name(buf, sizeof(buf),
row->lock_index,
strlen(row->lock_index),
thd, FALSE);
OK(fields[IDX_LOCK_INDEX]->store(buf, bufend - buf,
system_charset_info));
fields[IDX_LOCK_INDEX]->set_notnull();
} else {
fields[IDX_LOCK_INDEX]->set_null();
}
/* lock_space */
OK(field_store_ulint(fields[IDX_LOCK_SPACE],
row->lock_space));
/* lock_page */
OK(field_store_ulint(fields[IDX_LOCK_PAGE],
row->lock_page));
/* lock_rec */
OK(field_store_ulint(fields[IDX_LOCK_REC],
row->lock_rec));
/* lock_data */
OK(field_store_string(fields[IDX_LOCK_DATA],
row->lock_data));
OK(schema_table_store_record(thd, table));
}
DBUG_RETURN(0);
}
/***********************************************************************
Bind the dynamic table INFORMATION_SCHEMA.innodb_locks */
static
int
innodb_locks_init(
/*==============*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
ST_SCHEMA_TABLE* schema;
DBUG_ENTER("innodb_locks_init");
schema = (ST_SCHEMA_TABLE*) p;
schema->fields_info = innodb_locks_fields_info;
schema->fill_table = trx_i_s_common_fill_table;
DBUG_RETURN(0);
}
UNIV_INTERN struct st_mysql_plugin i_s_innodb_locks =
{
/* the plugin type (a MYSQL_XXX_PLUGIN value) */
/* int */
STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
/* pointer to type-specific plugin descriptor */
/* void* */
STRUCT_FLD(info, &i_s_info),
/* plugin name */
/* const char* */
STRUCT_FLD(name, "INNODB_LOCKS"),
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(author, plugin_author),
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(descr, "InnoDB conflicting locks"),
/* the plugin license (PLUGIN_LICENSE_XXX) */
/* int */
STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
/* the function to invoke when plugin is loaded */
/* int (*)(void*); */
STRUCT_FLD(init, innodb_locks_init),
/* the function to invoke when plugin is unloaded */
/* int (*)(void*); */
STRUCT_FLD(deinit, i_s_common_deinit),
/* plugin version (for SHOW PLUGINS) */
/* unsigned int */
STRUCT_FLD(version, INNODB_VERSION_SHORT),
/* struct st_mysql_show_var* */
STRUCT_FLD(status_vars, NULL),
/* struct st_mysql_sys_var** */
STRUCT_FLD(system_vars, NULL),
/* reserved for dependency checking */
/* void* */
STRUCT_FLD(__reserved1, NULL)
};
/* Fields of the dynamic table INFORMATION_SCHEMA.innodb_lock_waits */
static ST_FIELD_INFO innodb_lock_waits_fields_info[] =
{
#define IDX_REQUESTING_TRX_ID 0
{STRUCT_FLD(field_name, "requesting_trx_id"),
STRUCT_FLD(field_length, TRX_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_REQUESTED_LOCK_ID 1
{STRUCT_FLD(field_name, "requested_lock_id"),
STRUCT_FLD(field_length, TRX_I_S_LOCK_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_BLOCKING_TRX_ID 2
{STRUCT_FLD(field_name, "blocking_trx_id"),
STRUCT_FLD(field_length, TRX_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
#define IDX_BLOCKING_LOCK_ID 3
{STRUCT_FLD(field_name, "blocking_lock_id"),
STRUCT_FLD(field_length, TRX_I_S_LOCK_ID_MAX_LEN + 1),
STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, ""),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
END_OF_ST_FIELD_INFO
};
/***********************************************************************
Read data from cache buffer and fill the
INFORMATION_SCHEMA.innodb_lock_waits table with it. */
static
int
fill_innodb_lock_waits_from_cache(
/*==============================*/
/* out: 0 on success */
trx_i_s_cache_t* cache, /* in: cache to read from */
THD* thd, /* in: used to call
schema_table_store_record() */
TABLE* table) /* in/out: fill this table */
{
Field** fields;
ulint rows_num;
char requested_lock_id[TRX_I_S_LOCK_ID_MAX_LEN + 1];
char blocking_lock_id[TRX_I_S_LOCK_ID_MAX_LEN + 1];
ulint i;
DBUG_ENTER("fill_innodb_lock_waits_from_cache");
fields = table->field;
rows_num = trx_i_s_cache_get_rows_used(cache,
I_S_INNODB_LOCK_WAITS);
for (i = 0; i < rows_num; i++) {
i_s_lock_waits_row_t* row;
char requesting_trx_id[TRX_ID_MAX_LEN + 1];
char blocking_trx_id[TRX_ID_MAX_LEN + 1];
row = (i_s_lock_waits_row_t*)
trx_i_s_cache_get_nth_row(
cache, I_S_INNODB_LOCK_WAITS, i);
/* requesting_trx_id */
ut_snprintf(requesting_trx_id, sizeof(requesting_trx_id),
TRX_ID_FMT, row->requested_lock_row->lock_trx_id);
OK(field_store_string(fields[IDX_REQUESTING_TRX_ID],
requesting_trx_id));
/* requested_lock_id */
OK(field_store_string(
fields[IDX_REQUESTED_LOCK_ID],
trx_i_s_create_lock_id(
row->requested_lock_row,
requested_lock_id,
sizeof(requested_lock_id))));
/* blocking_trx_id */
ut_snprintf(blocking_trx_id, sizeof(blocking_trx_id),
TRX_ID_FMT, row->blocking_lock_row->lock_trx_id);
OK(field_store_string(fields[IDX_BLOCKING_TRX_ID],
blocking_trx_id));
/* blocking_lock_id */
OK(field_store_string(
fields[IDX_BLOCKING_LOCK_ID],
trx_i_s_create_lock_id(
row->blocking_lock_row,
blocking_lock_id,
sizeof(blocking_lock_id))));
OK(schema_table_store_record(thd, table));
}
DBUG_RETURN(0);
}
/***********************************************************************
Bind the dynamic table INFORMATION_SCHEMA.innodb_lock_waits */
static
int
innodb_lock_waits_init(
/*===================*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
ST_SCHEMA_TABLE* schema;
DBUG_ENTER("innodb_lock_waits_init");
schema = (ST_SCHEMA_TABLE*) p;
schema->fields_info = innodb_lock_waits_fields_info;
schema->fill_table = trx_i_s_common_fill_table;
DBUG_RETURN(0);
}
UNIV_INTERN struct st_mysql_plugin i_s_innodb_lock_waits =
{
/* the plugin type (a MYSQL_XXX_PLUGIN value) */
/* int */
STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
/* pointer to type-specific plugin descriptor */
/* void* */
STRUCT_FLD(info, &i_s_info),
/* plugin name */
/* const char* */
STRUCT_FLD(name, "INNODB_LOCK_WAITS"),
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(author, "Innobase Oy"),
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(descr, "InnoDB which lock is blocking which"),
/* the plugin license (PLUGIN_LICENSE_XXX) */
/* int */
STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
/* the function to invoke when plugin is loaded */
/* int (*)(void*); */
STRUCT_FLD(init, innodb_lock_waits_init),
/* the function to invoke when plugin is unloaded */
/* int (*)(void*); */
STRUCT_FLD(deinit, i_s_common_deinit),
/* plugin version (for SHOW PLUGINS) */
/* unsigned int */
STRUCT_FLD(version, INNODB_VERSION_SHORT),
/* struct st_mysql_show_var* */
STRUCT_FLD(status_vars, NULL),
/* struct st_mysql_sys_var** */
STRUCT_FLD(system_vars, NULL),
/* reserved for dependency checking */
/* void* */
STRUCT_FLD(__reserved1, NULL)
};
/***********************************************************************
Common function to fill any of the dynamic tables:
INFORMATION_SCHEMA.innodb_trx
INFORMATION_SCHEMA.innodb_locks
INFORMATION_SCHEMA.innodb_lock_waits */
static
int
trx_i_s_common_fill_table(
/*======================*/
/* out: 0 on success */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond) /* in: condition (not used) */
{
const char* table_name;
int ret;
trx_i_s_cache_t* cache;
DBUG_ENTER("trx_i_s_common_fill_table");
/* deny access to non-superusers */
if (check_global_access(thd, PROCESS_ACL)) {
DBUG_RETURN(0);
}
/* minimize the number of places where global variables are
referenced */
cache = trx_i_s_cache;
/* which table we have to fill? */
table_name = tables->schema_table_name;
/* or table_name = tables->schema_table->table_name; */
RETURN_IF_INNODB_NOT_STARTED(table_name);
/* update the cache */
trx_i_s_cache_start_write(cache);
trx_i_s_possibly_fetch_data_into_cache(cache);
trx_i_s_cache_end_write(cache);
if (trx_i_s_cache_is_truncated(cache)) {
/* XXX show warning to user if possible */
fprintf(stderr, "Warning: data in %s truncated due to "
"memory limit of %d bytes\n", table_name,
TRX_I_S_MEM_LIMIT);
}
ret = 0;
trx_i_s_cache_start_read(cache);
if (innobase_strcasecmp(table_name, "innodb_trx") == 0) {
if (fill_innodb_trx_from_cache(
cache, thd, tables->table) != 0) {
ret = 1;
}
} else if (innobase_strcasecmp(table_name, "innodb_locks") == 0) {
if (fill_innodb_locks_from_cache(
cache, thd, tables->table) != 0) {
ret = 1;
}
} else if (innobase_strcasecmp(table_name, "innodb_lock_waits") == 0) {
if (fill_innodb_lock_waits_from_cache(
cache, thd, tables->table) != 0) {
ret = 1;
}
} else {
/* huh! what happened!? */
fprintf(stderr,
"InnoDB: trx_i_s_common_fill_table() was "
"called to fill unknown table: %s.\n"
"This function only knows how to fill "
"innodb_trx, innodb_locks and "
"innodb_lock_waits tables.\n", table_name);
ret = 1;
}
trx_i_s_cache_end_read(cache);
#if 0
DBUG_RETURN(ret);
#else
/* if this function returns something else than 0 then a
deadlock occurs between the mysqld server and mysql client,
see http://bugs.mysql.com/29900 ; when that bug is resolved
we can enable the DBUG_RETURN(ret) above */
DBUG_RETURN(0);
#endif
}
/* Fields of the dynamic table information_schema.innodb_cmp. */
static ST_FIELD_INFO i_s_cmp_fields_info[] =
{
{STRUCT_FLD(field_name, "page_size"),
STRUCT_FLD(field_length, 5),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Compressed Page Size"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "compress_ops"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Total Number of Compressions"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "compress_ops_ok"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Total Number of"
" Successful Compressions"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "compress_time"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Total Duration of Compressions,"
" in Seconds"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "uncompress_ops"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Total Number of Decompressions"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "uncompress_time"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Total Duration of Decompressions,"
" in Seconds"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
END_OF_ST_FIELD_INFO
};
/***********************************************************************
Fill the dynamic table information_schema.innodb_cmp or
innodb_cmp_reset. */
static
int
i_s_cmp_fill_low(
/*=============*/
/* out: 0 on success, 1 on failure */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond, /* in: condition (ignored) */
ibool reset) /* in: TRUE=reset cumulated counts */
{
TABLE* table = (TABLE *) tables->table;
int status = 0;
DBUG_ENTER("i_s_cmp_fill_low");
/* deny access to non-superusers */
if (check_global_access(thd, PROCESS_ACL)) {
DBUG_RETURN(0);
}
RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
for (uint i = 0; i < PAGE_ZIP_NUM_SSIZE - 1; i++) {
page_zip_stat_t* zip_stat = &page_zip_stat[i];
table->field[0]->store(PAGE_ZIP_MIN_SIZE << i);
/* The cumulated counts are not protected by any
mutex. Thus, some operation in page0zip.c could
increment a counter between the time we read it and
clear it. We could introduce mutex protection, but it
could cause a measureable performance hit in
page0zip.c. */
table->field[1]->store(zip_stat->compressed);
table->field[2]->store(zip_stat->compressed_ok);
table->field[3]->store(
(ulong) (zip_stat->compressed_usec / 1000000));
table->field[4]->store(zip_stat->decompressed);
table->field[5]->store(
(ulong) (zip_stat->decompressed_usec / 1000000));
if (reset) {
memset(zip_stat, 0, sizeof *zip_stat);
}
if (schema_table_store_record(thd, table)) {
status = 1;
break;
}
}
DBUG_RETURN(status);
}
/***********************************************************************
Fill the dynamic table information_schema.innodb_cmp. */
static
int
i_s_cmp_fill(
/*=========*/
/* out: 0 on success, 1 on failure */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond) /* in: condition (ignored) */
{
return(i_s_cmp_fill_low(thd, tables, cond, FALSE));
}
/***********************************************************************
Fill the dynamic table information_schema.innodb_cmp_reset. */
static
int
i_s_cmp_reset_fill(
/*===============*/
/* out: 0 on success, 1 on failure */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond) /* in: condition (ignored) */
{
return(i_s_cmp_fill_low(thd, tables, cond, TRUE));
}
/***********************************************************************
Bind the dynamic table information_schema.innodb_cmp. */
static
int
i_s_cmp_init(
/*=========*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
DBUG_ENTER("i_s_cmp_init");
ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
schema->fields_info = i_s_cmp_fields_info;
schema->fill_table = i_s_cmp_fill;
DBUG_RETURN(0);
}
/***********************************************************************
Bind the dynamic table information_schema.innodb_cmp_reset. */
static
int
i_s_cmp_reset_init(
/*===============*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
DBUG_ENTER("i_s_cmp_reset_init");
ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
schema->fields_info = i_s_cmp_fields_info;
schema->fill_table = i_s_cmp_reset_fill;
DBUG_RETURN(0);
}
UNIV_INTERN struct st_mysql_plugin i_s_innodb_cmp =
{
/* the plugin type (a MYSQL_XXX_PLUGIN value) */
/* int */
STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
/* pointer to type-specific plugin descriptor */
/* void* */
STRUCT_FLD(info, &i_s_info),
/* plugin name */
/* const char* */
STRUCT_FLD(name, "INNODB_CMP"),
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(author, plugin_author),
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(descr, "Statistics for the InnoDB compression"),
/* the plugin license (PLUGIN_LICENSE_XXX) */
/* int */
STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
/* the function to invoke when plugin is loaded */
/* int (*)(void*); */
STRUCT_FLD(init, i_s_cmp_init),
/* the function to invoke when plugin is unloaded */
/* int (*)(void*); */
STRUCT_FLD(deinit, i_s_common_deinit),
/* plugin version (for SHOW PLUGINS) */
/* unsigned int */
STRUCT_FLD(version, INNODB_VERSION_SHORT),
/* struct st_mysql_show_var* */
STRUCT_FLD(status_vars, NULL),
/* struct st_mysql_sys_var** */
STRUCT_FLD(system_vars, NULL),
/* reserved for dependency checking */
/* void* */
STRUCT_FLD(__reserved1, NULL)
};
UNIV_INTERN struct st_mysql_plugin i_s_innodb_cmp_reset =
{
/* the plugin type (a MYSQL_XXX_PLUGIN value) */
/* int */
STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
/* pointer to type-specific plugin descriptor */
/* void* */
STRUCT_FLD(info, &i_s_info),
/* plugin name */
/* const char* */
STRUCT_FLD(name, "INNODB_CMP_RESET"),
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(author, plugin_author),
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(descr, "Statistics for the InnoDB compression;"
" reset cumulated counts"),
/* the plugin license (PLUGIN_LICENSE_XXX) */
/* int */
STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
/* the function to invoke when plugin is loaded */
/* int (*)(void*); */
STRUCT_FLD(init, i_s_cmp_reset_init),
/* the function to invoke when plugin is unloaded */
/* int (*)(void*); */
STRUCT_FLD(deinit, i_s_common_deinit),
/* plugin version (for SHOW PLUGINS) */
/* unsigned int */
STRUCT_FLD(version, INNODB_VERSION_SHORT),
/* struct st_mysql_show_var* */
STRUCT_FLD(status_vars, NULL),
/* struct st_mysql_sys_var** */
STRUCT_FLD(system_vars, NULL),
/* reserved for dependency checking */
/* void* */
STRUCT_FLD(__reserved1, NULL)
};
/* Fields of the dynamic table information_schema.innodb_cmpmem. */
static ST_FIELD_INFO i_s_cmpmem_fields_info[] =
{
{STRUCT_FLD(field_name, "page_size"),
STRUCT_FLD(field_length, 5),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Buddy Block Size"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "pages_used"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Currently in Use"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "pages_free"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Currently Available"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "relocation_ops"),
STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Total Number of Relocations"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
{STRUCT_FLD(field_name, "relocation_time"),
STRUCT_FLD(field_length, MY_INT32_NUM_DECIMAL_DIGITS),
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
STRUCT_FLD(value, 0),
STRUCT_FLD(field_flags, 0),
STRUCT_FLD(old_name, "Total Duration of Relocations,"
" in Seconds"),
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
END_OF_ST_FIELD_INFO
};
/***********************************************************************
Fill the dynamic table information_schema.innodb_cmpmem or
innodb_cmpmem_reset. */
static
int
i_s_cmpmem_fill_low(
/*================*/
/* out: 0 on success, 1 on failure */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond, /* in: condition (ignored) */
ibool reset) /* in: TRUE=reset cumulated counts */
{
TABLE* table = (TABLE *) tables->table;
int status = 0;
DBUG_ENTER("i_s_cmpmem_fill_low");
/* deny access to non-superusers */
if (check_global_access(thd, PROCESS_ACL)) {
DBUG_RETURN(0);
}
RETURN_IF_INNODB_NOT_STARTED(tables->schema_table_name);
buf_pool_mutex_enter();
for (uint x = 0; x <= BUF_BUDDY_SIZES; x++) {
buf_buddy_stat_t* buddy_stat = &buf_buddy_stat[x];
table->field[0]->store(BUF_BUDDY_LOW << x);
table->field[1]->store(buddy_stat->used);
table->field[2]->store(UNIV_LIKELY(x < BUF_BUDDY_SIZES)
? UT_LIST_GET_LEN(buf_pool->zip_free[x])
: 0);
table->field[3]->store((longlong) buddy_stat->relocated, true);
table->field[4]->store(
(ulong) (buddy_stat->relocated_usec / 1000000));
if (reset) {
/* This is protected by buf_pool_mutex. */
buddy_stat->relocated = 0;
buddy_stat->relocated_usec = 0;
}
if (schema_table_store_record(thd, table)) {
status = 1;
break;
}
}
buf_pool_mutex_exit();
DBUG_RETURN(status);
}
/***********************************************************************
Fill the dynamic table information_schema.innodb_cmpmem. */
static
int
i_s_cmpmem_fill(
/*============*/
/* out: 0 on success, 1 on failure */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond) /* in: condition (ignored) */
{
return(i_s_cmpmem_fill_low(thd, tables, cond, FALSE));
}
/***********************************************************************
Fill the dynamic table information_schema.innodb_cmpmem_reset. */
static
int
i_s_cmpmem_reset_fill(
/*==================*/
/* out: 0 on success, 1 on failure */
THD* thd, /* in: thread */
TABLE_LIST* tables, /* in/out: tables to fill */
COND* cond) /* in: condition (ignored) */
{
return(i_s_cmpmem_fill_low(thd, tables, cond, TRUE));
}
/***********************************************************************
Bind the dynamic table information_schema.innodb_cmpmem. */
static
int
i_s_cmpmem_init(
/*============*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
DBUG_ENTER("i_s_cmpmem_init");
ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
schema->fields_info = i_s_cmpmem_fields_info;
schema->fill_table = i_s_cmpmem_fill;
DBUG_RETURN(0);
}
/***********************************************************************
Bind the dynamic table information_schema.innodb_cmpmem_reset. */
static
int
i_s_cmpmem_reset_init(
/*==================*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
DBUG_ENTER("i_s_cmpmem_reset_init");
ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*) p;
schema->fields_info = i_s_cmpmem_fields_info;
schema->fill_table = i_s_cmpmem_reset_fill;
DBUG_RETURN(0);
}
UNIV_INTERN struct st_mysql_plugin i_s_innodb_cmpmem =
{
/* the plugin type (a MYSQL_XXX_PLUGIN value) */
/* int */
STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
/* pointer to type-specific plugin descriptor */
/* void* */
STRUCT_FLD(info, &i_s_info),
/* plugin name */
/* const char* */
STRUCT_FLD(name, "INNODB_CMPMEM"),
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(author, plugin_author),
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(descr, "Statistics for the InnoDB compressed buffer pool"),
/* the plugin license (PLUGIN_LICENSE_XXX) */
/* int */
STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
/* the function to invoke when plugin is loaded */
/* int (*)(void*); */
STRUCT_FLD(init, i_s_cmpmem_init),
/* the function to invoke when plugin is unloaded */
/* int (*)(void*); */
STRUCT_FLD(deinit, i_s_common_deinit),
/* plugin version (for SHOW PLUGINS) */
/* unsigned int */
STRUCT_FLD(version, INNODB_VERSION_SHORT),
/* struct st_mysql_show_var* */
STRUCT_FLD(status_vars, NULL),
/* struct st_mysql_sys_var** */
STRUCT_FLD(system_vars, NULL),
/* reserved for dependency checking */
/* void* */
STRUCT_FLD(__reserved1, NULL)
};
UNIV_INTERN struct st_mysql_plugin i_s_innodb_cmpmem_reset =
{
/* the plugin type (a MYSQL_XXX_PLUGIN value) */
/* int */
STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
/* pointer to type-specific plugin descriptor */
/* void* */
STRUCT_FLD(info, &i_s_info),
/* plugin name */
/* const char* */
STRUCT_FLD(name, "INNODB_CMPMEM_RESET"),
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(author, plugin_author),
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD(descr, "Statistics for the InnoDB compressed buffer pool;"
" reset cumulated counts"),
/* the plugin license (PLUGIN_LICENSE_XXX) */
/* int */
STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
/* the function to invoke when plugin is loaded */
/* int (*)(void*); */
STRUCT_FLD(init, i_s_cmpmem_reset_init),
/* the function to invoke when plugin is unloaded */
/* int (*)(void*); */
STRUCT_FLD(deinit, i_s_common_deinit),
/* plugin version (for SHOW PLUGINS) */
/* unsigned int */
STRUCT_FLD(version, INNODB_VERSION_SHORT),
/* struct st_mysql_show_var* */
STRUCT_FLD(status_vars, NULL),
/* struct st_mysql_sys_var** */
STRUCT_FLD(system_vars, NULL),
/* reserved for dependency checking */
/* void* */
STRUCT_FLD(__reserved1, NULL)
};
/***********************************************************************
Unbind a dynamic INFORMATION_SCHEMA table. */
static
int
i_s_common_deinit(
/*==============*/
/* out: 0 on success */
void* p) /* in/out: table schema object */
{
DBUG_ENTER("i_s_common_deinit");
/* Do nothing */
DBUG_RETURN(0);
}