@ -1,6 +1,7 @@
/*****************************************************************************
/*****************************************************************************
Copyright ( c ) 2007 , 2013 , Oracle and / or its affiliates . All Rights Reserved . Copyright ( c ) 2007 , 2013 , Oracle and / or its affiliates . All Rights Reserved .
Copyrigth ( c ) 2014 , 2015 , MariaDB Corporation
This program is free software ; you can redistribute it and / or modify it under This program is free software ; you can redistribute it and / or modify it under
the terms of the GNU General Public License as published by the Free Software the terms of the GNU General Public License as published by the Free Software
@ -21,7 +22,9 @@ this program; if not, write to the Free Software Foundation, Inc.,
InnoDB INFORMATION SCHEMA tables interface to MySQL . InnoDB INFORMATION SCHEMA tables interface to MySQL .
Created July 18 , 2007 Vasil Dimov Created July 18 , 2007 Vasil Dimov
Modified Dec 29 , 2014 Jan Lindström ( Added sys_semaphore_waits )
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# include "univ.i"
# include <my_global.h>
# include <my_global.h>
# ifndef MYSQL_SERVER
# ifndef MYSQL_SERVER
# define MYSQL_SERVER /* For Item_* classes */
# define MYSQL_SERVER /* For Item_* classes */
@ -68,6 +71,7 @@ Created July 18, 2007 Vasil Dimov
# include "log0online.h"
# include "log0online.h"
# include "btr0btr.h"
# include "btr0btr.h"
# include "page0zip.h"
# include "page0zip.h"
# include "sync0arr.h"
/** structure associates a name string with a file page type and/or buffer
/** structure associates a name string with a file page type and/or buffer
page state . */ page state . */
@ -149,45 +153,6 @@ struct buf_page_info_t{
index_id_t index_id ; /*!< Index ID if a index page */ index_id_t index_id ; /*!< Index ID if a index page */
} ; } ;
/** maximum number of buffer page info we would cache. */
# define MAX_BUF_INFO_CACHED 10000
# 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 , Sql_condition : : 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 & & ! defined __clang__
# define STRUCT_FLD(name, value) name: value
# else
# define STRUCT_FLD(name, value) value
# endif
/* Don't use a static const variable here, as some C++ compilers (notably
HPUX aCC : HP ANSI C + + B3910B A .03 .65 ) can ' t handle it . */
# define 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 : Use the following types mapping :
@ -216,6 +181,20 @@ time_t MYSQL_TYPE_DATETIME
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
*/ */
/** Implemented on sync0arr.cc */
/*******************************************************************/ /**
Function to populate INFORMATION_SCHEMA . INNODB_SYS_SEMAPHORE_WAITS table .
Loop through each item on sync array , and extract the column
information and fill the INFORMATION_SCHEMA . INNODB_SYS_SEMAPHORE_WAITS table .
@ return 0 on success */
UNIV_INTERN
int
sync_arr_fill_sys_semphore_waits_table (
/*===================================*/
THD * thd , /*!< in: thread */
TABLE_LIST * tables , /*!< in/out: tables to fill */
Item * ) ; /*!< in: condition (not used) */
/*******************************************************************/ /**
/*******************************************************************/ /**
Common function to fill any of the dynamic tables : Common function to fill any of the dynamic tables :
INFORMATION_SCHEMA . innodb_trx INFORMATION_SCHEMA . innodb_trx
@ -273,7 +252,6 @@ field_store_time_t(
/*******************************************************************/ /**
/*******************************************************************/ /**
Auxiliary function to store char * value in MYSQL_TYPE_STRING field . Auxiliary function to store char * value in MYSQL_TYPE_STRING field .
@ return 0 on success */ @ return 0 on success */
static
int int
field_store_string ( field_store_string (
/*===============*/ /*===============*/
@ -340,7 +318,6 @@ field_store_index_name(
Auxiliary function to store ulint value in MYSQL_TYPE_LONGLONG field . Auxiliary function to store ulint value in MYSQL_TYPE_LONGLONG field .
If the value is ULINT_UNDEFINED then the field it set to NULL . If the value is ULINT_UNDEFINED then the field it set to NULL .
@ return 0 on success */ @ return 0 on success */
static
int int
field_store_ulint ( field_store_ulint (
/*==============*/ /*==============*/
@ -8992,3 +8969,494 @@ UNIV_INTERN struct st_maria_plugin i_s_innodb_tablespaces_scrubbing =
STRUCT_FLD ( version_info , INNODB_VERSION_STR ) , STRUCT_FLD ( version_info , INNODB_VERSION_STR ) ,
STRUCT_FLD ( maturity , MariaDB_PLUGIN_MATURITY_STABLE ) STRUCT_FLD ( maturity , MariaDB_PLUGIN_MATURITY_STABLE )
} ; } ;
/** INNODB_MUTEXES *********************************************/
/* Fields of the dynamic table INFORMATION_SCHEMA.INNODB_MUTEXES */
static ST_FIELD_INFO innodb_mutexes_fields_info [ ] =
{
# define MUTEXES_NAME 0
{ STRUCT_FLD ( field_name , " NAME " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 MUTEXES_CREATE_FILE 1
{ STRUCT_FLD ( field_name , " CREATE_FILE " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 MUTEXES_CREATE_LINE 2
{ STRUCT_FLD ( field_name , " CREATE_LINE " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
# define MUTEXES_OS_WAITS 3
{ STRUCT_FLD ( field_name , " OS_WAITS " ) ,
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 ) } ,
END_OF_ST_FIELD_INFO
} ;
/*******************************************************************/ /**
Function to populate INFORMATION_SCHEMA . INNODB_MUTEXES table .
Loop through each record in mutex and rw_lock lists , and extract the column
information and fill the INFORMATION_SCHEMA . INNODB_MUTEXES table .
@ return 0 on success */
static
int
i_s_innodb_mutexes_fill_table (
/*==========================*/
THD * thd , /*!< in: thread */
TABLE_LIST * tables , /*!< in/out: tables to fill */
Item * ) /*!< in: condition (not used) */
{
ib_mutex_t * mutex ;
rw_lock_t * lock ;
ulint block_mutex_oswait_count = 0 ;
ulint block_lock_oswait_count = 0 ;
ib_mutex_t * block_mutex = NULL ;
rw_lock_t * block_lock = NULL ;
Field * * fields = tables - > table - > field ;
DBUG_ENTER ( " i_s_innodb_mutexes_fill_table " ) ;
RETURN_IF_INNODB_NOT_STARTED ( tables - > schema_table_name ) ;
/* deny access to user without PROCESS_ACL privilege */
if ( check_global_access ( thd , PROCESS_ACL ) ) {
DBUG_RETURN ( 0 ) ;
}
mutex_enter ( & mutex_list_mutex ) ;
for ( mutex = UT_LIST_GET_FIRST ( mutex_list ) ; mutex ! = NULL ;
mutex = UT_LIST_GET_NEXT ( list , mutex ) ) {
if ( mutex - > count_os_wait = = 0 ) {
continue ;
}
if ( buf_pool_is_block_mutex ( mutex ) ) {
block_mutex = mutex ;
block_mutex_oswait_count + = mutex - > count_os_wait ;
continue ;
}
OK ( field_store_string ( fields [ MUTEXES_NAME ] , mutex - > cmutex_name ) ) ;
OK ( field_store_string ( fields [ MUTEXES_CREATE_FILE ] , innobase_basename ( mutex - > cfile_name ) ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_CREATE_LINE ] , mutex - > cline ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_OS_WAITS ] , ( longlong ) mutex - > count_os_wait ) ) ;
OK ( schema_table_store_record ( thd , tables - > table ) ) ;
}
if ( block_mutex ) {
char buf1 [ IO_SIZE ] ;
my_snprintf ( buf1 , sizeof buf1 , " combined %s " ,
innobase_basename ( block_mutex - > cfile_name ) ) ;
OK ( field_store_string ( fields [ MUTEXES_NAME ] , block_mutex - > cmutex_name ) ) ;
OK ( field_store_string ( fields [ MUTEXES_CREATE_FILE ] , buf1 ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_CREATE_LINE ] , block_mutex - > cline ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_OS_WAITS ] , ( longlong ) block_mutex_oswait_count ) ) ;
OK ( schema_table_store_record ( thd , tables - > table ) ) ;
}
mutex_exit ( & mutex_list_mutex ) ;
mutex_enter ( & rw_lock_list_mutex ) ;
for ( lock = UT_LIST_GET_FIRST ( rw_lock_list ) ; lock ! = NULL ;
lock = UT_LIST_GET_NEXT ( list , lock ) ) {
if ( lock - > count_os_wait = = 0 ) {
continue ;
}
if ( buf_pool_is_block_lock ( lock ) ) {
block_lock = lock ;
block_lock_oswait_count + = lock - > count_os_wait ;
continue ;
}
OK ( field_store_string ( fields [ MUTEXES_NAME ] , lock - > lock_name ) ) ;
OK ( field_store_string ( fields [ MUTEXES_CREATE_FILE ] , innobase_basename ( lock - > cfile_name ) ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_CREATE_LINE ] , lock - > cline ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_OS_WAITS ] , ( longlong ) lock - > count_os_wait ) ) ;
OK ( schema_table_store_record ( thd , tables - > table ) ) ;
}
if ( block_lock ) {
char buf1 [ IO_SIZE ] ;
my_snprintf ( buf1 , sizeof buf1 , " combined %s " ,
innobase_basename ( block_lock - > cfile_name ) ) ;
OK ( field_store_string ( fields [ MUTEXES_NAME ] , block_lock - > lock_name ) ) ;
OK ( field_store_string ( fields [ MUTEXES_CREATE_FILE ] , buf1 ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_CREATE_LINE ] , block_lock - > cline ) ) ;
OK ( field_store_ulint ( fields [ MUTEXES_OS_WAITS ] , ( longlong ) block_lock_oswait_count ) ) ;
OK ( schema_table_store_record ( thd , tables - > table ) ) ;
}
mutex_exit ( & rw_lock_list_mutex ) ;
DBUG_RETURN ( 0 ) ;
}
/*******************************************************************/ /**
Bind the dynamic table INFORMATION_SCHEMA . INNODB_MUTEXES
@ return 0 on success */
static
int
innodb_mutexes_init (
/*================*/
void * p ) /*!< in/out: table schema object */
{
ST_SCHEMA_TABLE * schema ;
DBUG_ENTER ( " innodb_mutexes_init " ) ;
schema = ( ST_SCHEMA_TABLE * ) p ;
schema - > fields_info = innodb_mutexes_fields_info ;
schema - > fill_table = i_s_innodb_mutexes_fill_table ;
DBUG_RETURN ( 0 ) ;
}
UNIV_INTERN struct st_mysql_plugin i_s_innodb_mutexes =
{
/* 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_MUTEXES " ) ,
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD ( author , plugin_author ) ,
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD ( descr , " InnoDB SYS_DATAFILES " ) ,
/* 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_mutexes_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 ) ,
/* Maria extension */
STRUCT_FLD ( version_info , INNODB_VERSION_STR ) ,
STRUCT_FLD ( maturity , MariaDB_PLUGIN_MATURITY_STABLE ) ,
} ;
/** SYS_SEMAPHORE_WAITS ************************************************/
/* Fields of the dynamic table INFORMATION_SCHEMA.INNODB_SYS_SEMAPHORE_WAITS */
static ST_FIELD_INFO innodb_sys_semaphore_waits_fields_info [ ] =
{
// SYS_SEMAPHORE_WAITS_THREAD_ID 0
{ STRUCT_FLD ( field_name , " 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 ) } ,
// SYS_SEMAPHORE_WAITS_OBJECT_NAME 1
{ STRUCT_FLD ( field_name , " OBJECT_NAME " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_FILE 2
{ STRUCT_FLD ( field_name , " FILE " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_LINE 3
{ STRUCT_FLD ( field_name , " LINE " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
// SYS_SEMAPHORE_WAITS_WAIT_TIME 4
{ STRUCT_FLD ( field_name , " WAIT_TIME " ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_WAIT_OBJECT 5
{ STRUCT_FLD ( field_name , " WAIT_OBJECT " ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_WAIT_TYPE 6
{ STRUCT_FLD ( field_name , " WAIT_TYPE " ) ,
STRUCT_FLD ( field_length , 16 ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_HOLDER_THREAD_ID 7
{ STRUCT_FLD ( field_name , " HOLDER_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 ) } ,
// SYS_SEMAPHORE_WAITS_HOLDER_FILE 8
{ STRUCT_FLD ( field_name , " HOLDER_FILE " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_HOLDER_LINE 9
{ STRUCT_FLD ( field_name , " HOLDER_LINE " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
// SYS_SEMAPHORE_WAITS_CREATED_FILE 10
{ STRUCT_FLD ( field_name , " CREATED_FILE " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_CREATED_LINE 11
{ STRUCT_FLD ( field_name , " CREATED_LINE " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
// SYS_SEMAPHORE_WAITS_WRITER_THREAD 12
{ STRUCT_FLD ( field_name , " WRITER_THREAD " ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_RESERVATION_MODE 13
{ STRUCT_FLD ( field_name , " RESERVATION_MODE " ) ,
STRUCT_FLD ( field_length , 16 ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_READERS 14
{ STRUCT_FLD ( field_name , " READERS " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
// SYS_SEMAPHORE_WAITS_WAITERS_FLAG 15
{ STRUCT_FLD ( field_name , " WAITERS_FLAG " ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_LOCK_WORD 16
{ STRUCT_FLD ( field_name , " LOCK_WORD " ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_LAST_READER_FILE 17
{ STRUCT_FLD ( field_name , " LAST_READER_FILE " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_LAST_READER_LINE 18
{ STRUCT_FLD ( field_name , " LAST_READER_LINE " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
// SYS_SEMAPHORE_WAITS_LAST_WRITER_FILE 19
{ STRUCT_FLD ( field_name , " LAST_WRITER_FILE " ) ,
STRUCT_FLD ( field_length , OS_FILE_MAX_PATH ) ,
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 ) } ,
// SYS_SEMAPHORE_WAITS_LAST_WRITER_LINE 20
{ STRUCT_FLD ( field_name , " LAST_WRITER_LINE " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
// SYS_SEMAPHORE_WAITS_OS_WAIT_COUNT 21
{ STRUCT_FLD ( field_name , " OS_WAIT_COUNT " ) ,
STRUCT_FLD ( field_length , MY_INT32_NUM_DECIMAL_DIGITS ) ,
STRUCT_FLD ( field_type , MYSQL_TYPE_LONG ) ,
STRUCT_FLD ( value , 0 ) ,
STRUCT_FLD ( field_flags , MY_I_S_UNSIGNED ) ,
STRUCT_FLD ( old_name , " " ) ,
STRUCT_FLD ( open_method , SKIP_OPEN_TABLE ) } ,
END_OF_ST_FIELD_INFO
} ;
/*******************************************************************/ /**
Bind the dynamic table INFORMATION_SCHEMA . INNODB_SYS_SEMAPHORE_WAITS
@ return 0 on success */
static
int
innodb_sys_semaphore_waits_init (
/*============================*/
void * p ) /*!< in/out: table schema object */
{
ST_SCHEMA_TABLE * schema ;
DBUG_ENTER ( " innodb_sys_semaphore_waits_init " ) ;
schema = ( ST_SCHEMA_TABLE * ) p ;
schema - > fields_info = innodb_sys_semaphore_waits_fields_info ;
schema - > fill_table = sync_arr_fill_sys_semphore_waits_table ;
DBUG_RETURN ( 0 ) ;
}
UNIV_INTERN struct st_mysql_plugin i_s_innodb_sys_semaphore_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_SYS_SEMAPHORE_WAITS " ) ,
/* plugin author (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD ( author , maria_plugin_author ) ,
/* general descriptive text (for SHOW PLUGINS) */
/* const char* */
STRUCT_FLD ( descr , " InnoDB SYS_SEMAPHORE_WAITS " ) ,
/* 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_sys_semaphore_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 ) ,
/* Maria extension */
STRUCT_FLD ( version_info , INNODB_VERSION_STR ) ,
STRUCT_FLD ( maturity , MariaDB_PLUGIN_MATURITY_STABLE ) ,
} ;
Jan Lindström
11 years ago