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1537 lines
40 KiB
1537 lines
40 KiB
/******************************************************
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InnoDB INFORMATION SCHEMA tables interface to MySQL.
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(c) 2007 Innobase Oy
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Created July 18, 2007 Vasil Dimov
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*******************************************************/
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#include <mysql_priv.h>
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#include <mysqld_error.h>
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#include <m_ctype.h>
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#include <hash.h>
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#include <myisampack.h>
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#include <mysys_err.h>
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#include <my_sys.h>
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#include "i_s.h"
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#include <mysql/plugin.h>
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extern "C" {
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#include "trx0i_s.h"
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#include "trx0trx.h" /* for TRX_QUE_STATE_STR_MAX_LEN */
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#include "buf0buddy.h" /* for i_s_cmpmem */
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#include "buf0buf.h" /* for buf_pool and PAGE_ZIP_MIN_SIZE */
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#include "ha_prototypes.h" /* for innobase_convert_name() */
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}
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static const char plugin_author[] = "Innobase Oy";
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#define OK(expr) \
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if ((expr) != 0) { \
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DBUG_RETURN(1); \
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}
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#if !defined __STRICT_ANSI__ && defined __GNUC__ && (__GNUC__) > 2 && !defined __INTEL_COMPILER
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#define STRUCT_FLD(name, value) name: value
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#else
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#define STRUCT_FLD(name, value) value
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#endif
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static const ST_FIELD_INFO END_OF_ST_FIELD_INFO =
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{STRUCT_FLD(field_name, NULL),
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STRUCT_FLD(field_length, 0),
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STRUCT_FLD(field_type, MYSQL_TYPE_NULL),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, 0),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)};
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/*
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Use the following types mapping:
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C type ST_FIELD_INFO::field_type
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---------------------------------
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long MYSQL_TYPE_LONGLONG
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(field_length=MY_INT64_NUM_DECIMAL_DIGITS)
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long unsigned MYSQL_TYPE_LONGLONG
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(field_length=MY_INT64_NUM_DECIMAL_DIGITS, field_flags=MY_I_S_UNSIGNED)
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char* MYSQL_TYPE_STRING
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(field_length=n)
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float MYSQL_TYPE_FLOAT
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(field_length=0 is ignored)
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void* MYSQL_TYPE_LONGLONG
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(field_length=MY_INT64_NUM_DECIMAL_DIGITS, field_flags=MY_I_S_UNSIGNED)
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boolean (if else) MYSQL_TYPE_LONG
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(field_length=1)
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time_t MYSQL_TYPE_DATETIME
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(field_length=0 ignored)
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---------------------------------
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*/
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/* XXX these are defined in mysql_priv.h inside #ifdef MYSQL_SERVER */
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bool schema_table_store_record(THD *thd, TABLE *table);
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void localtime_to_TIME(MYSQL_TIME *to, struct tm *from);
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bool check_global_access(THD *thd, ulong want_access);
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/***********************************************************************
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Common function to fill any of the dynamic tables:
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INFORMATION_SCHEMA.innodb_trx
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INFORMATION_SCHEMA.innodb_locks
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INFORMATION_SCHEMA.innodb_lock_waits */
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static
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int
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trx_i_s_common_fill_table(
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/*======================*/
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/* out: 0 on success */
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THD* thd, /* in: thread */
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TABLE_LIST* tables, /* in/out: tables to fill */
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COND* cond); /* in: condition (not used) */
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/***********************************************************************
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Unbind a dynamic INFORMATION_SCHEMA table. */
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static
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int
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i_s_common_deinit(
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/*==============*/
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/* out: 0 on success */
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void* p); /* in/out: table schema object */
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/***********************************************************************
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Auxiliary function to store time_t value in MYSQL_TYPE_DATETIME
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field. */
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static
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int
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field_store_time_t(
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/*===============*/
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/* out: 0 on success */
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Field* field, /* in/out: target field for storage */
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time_t time) /* in: value to store */
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{
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MYSQL_TIME my_time;
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struct tm tm_time;
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#if 0
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/* use this if you are sure that `variables' and `time_zone'
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are always initialized */
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thd->variables.time_zone->gmt_sec_to_TIME(
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&my_time, (my_time_t) time);
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#else
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localtime_r(&time, &tm_time);
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localtime_to_TIME(&my_time, &tm_time);
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my_time.time_type = MYSQL_TIMESTAMP_DATETIME;
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#endif
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return(field->store_time(&my_time, MYSQL_TIMESTAMP_DATETIME));
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}
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/***********************************************************************
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Auxiliary function to store char* value in MYSQL_TYPE_STRING field. */
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static
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int
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field_store_string(
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/*===============*/
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/* out: 0 on success */
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Field* field, /* in/out: target field for storage */
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const char* str) /* in: NUL-terminated utf-8 string,
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or NULL */
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{
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int ret;
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if (str != NULL) {
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ret = field->store(str, strlen(str),
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system_charset_info);
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field->set_notnull();
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} else {
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ret = 0; /* success */
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field->set_null();
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}
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return(ret);
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}
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/***********************************************************************
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Auxiliary function to store ulint value in MYSQL_TYPE_LONGLONG field.
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If the value is ULINT_UNDEFINED then the field it set to NULL. */
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static
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int
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field_store_ulint(
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/*==============*/
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/* out: 0 on success */
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Field* field, /* in/out: target field for storage */
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ulint n) /* in: value to store */
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{
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int ret;
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if (n != ULINT_UNDEFINED) {
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ret = field->store(n);
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field->set_notnull();
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} else {
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ret = 0; /* success */
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field->set_null();
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}
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return(ret);
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}
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/* Fields of the dynamic table INFORMATION_SCHEMA.innodb_trx */
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static ST_FIELD_INFO innodb_trx_fields_info[] =
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{
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#define IDX_TRX_ID 0
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{STRUCT_FLD(field_name, "trx_id"),
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STRUCT_FLD(field_length, TRX_ID_MAX_LEN + 1),
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STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, 0),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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#define IDX_TRX_STATE 1
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{STRUCT_FLD(field_name, "trx_state"),
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STRUCT_FLD(field_length, TRX_QUE_STATE_STR_MAX_LEN + 1),
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STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, 0),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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#define IDX_TRX_STARTED 2
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{STRUCT_FLD(field_name, "trx_started"),
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STRUCT_FLD(field_length, 0),
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STRUCT_FLD(field_type, MYSQL_TYPE_DATETIME),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, 0),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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#define IDX_TRX_REQUESTED_LOCK_ID 3
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{STRUCT_FLD(field_name, "trx_requested_lock_id"),
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STRUCT_FLD(field_length, TRX_I_S_LOCK_ID_MAX_LEN + 1),
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STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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#define IDX_TRX_WAIT_STARTED 4
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{STRUCT_FLD(field_name, "trx_wait_started"),
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STRUCT_FLD(field_length, 0),
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STRUCT_FLD(field_type, MYSQL_TYPE_DATETIME),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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#define IDX_TRX_WEIGHT 5
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{STRUCT_FLD(field_name, "trx_weight"),
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STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
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STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, MY_I_S_UNSIGNED),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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#define IDX_TRX_MYSQL_THREAD_ID 6
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{STRUCT_FLD(field_name, "trx_mysql_thread_id"),
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STRUCT_FLD(field_length, MY_INT64_NUM_DECIMAL_DIGITS),
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STRUCT_FLD(field_type, MYSQL_TYPE_LONGLONG),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, MY_I_S_UNSIGNED),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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#define IDX_TRX_QUERY 7
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{STRUCT_FLD(field_name, "trx_query"),
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STRUCT_FLD(field_length, TRX_I_S_TRX_QUERY_MAX_LEN),
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STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
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STRUCT_FLD(value, 0),
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STRUCT_FLD(field_flags, MY_I_S_MAYBE_NULL),
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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END_OF_ST_FIELD_INFO
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};
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/***********************************************************************
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Read data from cache buffer and fill the INFORMATION_SCHEMA.innodb_trx
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table with it. */
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static
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int
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fill_innodb_trx_from_cache(
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/*=======================*/
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/* out: 0 on success */
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trx_i_s_cache_t* cache, /* in: cache to read from */
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THD* thd, /* in: used to call
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schema_table_store_record() */
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TABLE* table) /* in/out: fill this table */
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{
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Field** fields;
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ulint rows_num;
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char lock_id[TRX_I_S_LOCK_ID_MAX_LEN + 1];
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ulint i;
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DBUG_ENTER("fill_innodb_trx_from_cache");
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fields = table->field;
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rows_num = trx_i_s_cache_get_rows_used(cache,
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I_S_INNODB_TRX);
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for (i = 0; i < rows_num; i++) {
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i_s_trx_row_t* row;
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char trx_id[TRX_ID_MAX_LEN + 1];
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row = (i_s_trx_row_t*)
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trx_i_s_cache_get_nth_row(
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cache, I_S_INNODB_TRX, i);
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/* trx_id */
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ut_snprintf(trx_id, sizeof(trx_id), TRX_ID_FMT, row->trx_id);
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OK(field_store_string(fields[IDX_TRX_ID], trx_id));
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/* trx_state */
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OK(field_store_string(fields[IDX_TRX_STATE],
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row->trx_state));
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/* trx_started */
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OK(field_store_time_t(fields[IDX_TRX_STARTED],
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(time_t) row->trx_started));
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/* trx_requested_lock_id */
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/* trx_wait_started */
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if (row->trx_wait_started != 0) {
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OK(field_store_string(
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fields[IDX_TRX_REQUESTED_LOCK_ID],
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trx_i_s_create_lock_id(
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row->requested_lock_row,
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lock_id, sizeof(lock_id))));
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/* field_store_string() sets it no notnull */
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OK(field_store_time_t(
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fields[IDX_TRX_WAIT_STARTED],
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(time_t) row->trx_wait_started));
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fields[IDX_TRX_WAIT_STARTED]->set_notnull();
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} else {
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fields[IDX_TRX_REQUESTED_LOCK_ID]->set_null();
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fields[IDX_TRX_WAIT_STARTED]->set_null();
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}
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/* trx_weight */
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OK(fields[IDX_TRX_WEIGHT]->store((longlong) row->trx_weight,
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true));
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/* trx_mysql_thread_id */
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OK(fields[IDX_TRX_MYSQL_THREAD_ID]->store(
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row->trx_mysql_thread_id));
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/* trx_query */
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OK(field_store_string(fields[IDX_TRX_QUERY],
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row->trx_query));
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OK(schema_table_store_record(thd, table));
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}
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DBUG_RETURN(0);
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}
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/***********************************************************************
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Bind the dynamic table INFORMATION_SCHEMA.innodb_trx */
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static
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int
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innodb_trx_init(
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/*============*/
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/* out: 0 on success */
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void* p) /* in/out: table schema object */
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{
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ST_SCHEMA_TABLE* schema;
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DBUG_ENTER("innodb_trx_init");
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schema = (ST_SCHEMA_TABLE*) p;
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schema->fields_info = innodb_trx_fields_info;
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schema->fill_table = trx_i_s_common_fill_table;
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DBUG_RETURN(0);
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}
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static struct st_mysql_information_schema i_s_info =
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{
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MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION
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};
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UNIV_INTERN struct st_mysql_plugin i_s_innodb_trx =
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{
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/* the plugin type (a MYSQL_XXX_PLUGIN value) */
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/* int */
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STRUCT_FLD(type, MYSQL_INFORMATION_SCHEMA_PLUGIN),
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/* pointer to type-specific plugin descriptor */
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/* void* */
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STRUCT_FLD(info, &i_s_info),
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/* plugin name */
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/* const char* */
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STRUCT_FLD(name, "INNODB_TRX"),
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/* plugin author (for SHOW PLUGINS) */
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/* const char* */
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STRUCT_FLD(author, plugin_author),
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/* general descriptive text (for SHOW PLUGINS) */
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/* const char* */
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STRUCT_FLD(descr, "InnoDB transactions"),
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/* the plugin license (PLUGIN_LICENSE_XXX) */
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/* int */
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STRUCT_FLD(license, PLUGIN_LICENSE_GPL),
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/* the function to invoke when plugin is loaded */
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/* int (*)(void*); */
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STRUCT_FLD(init, innodb_trx_init),
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/* the function to invoke when plugin is unloaded */
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/* int (*)(void*); */
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STRUCT_FLD(deinit, i_s_common_deinit),
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/* plugin version (for SHOW PLUGINS) */
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/* unsigned int */
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STRUCT_FLD(version, 0x0100 /* 1.0 */),
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/* struct st_mysql_show_var* */
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STRUCT_FLD(status_vars, NULL),
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/* struct st_mysql_sys_var** */
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STRUCT_FLD(system_vars, NULL),
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|
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/* reserved for dependency checking */
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/* void* */
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STRUCT_FLD(__reserved1, NULL)
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};
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|
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/* Fields of the dynamic table INFORMATION_SCHEMA.innodb_locks */
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static ST_FIELD_INFO innodb_locks_fields_info[] =
|
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{
|
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#define IDX_LOCK_ID 0
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{STRUCT_FLD(field_name, "lock_id"),
|
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STRUCT_FLD(field_length, TRX_I_S_LOCK_ID_MAX_LEN + 1),
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STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
|
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STRUCT_FLD(value, 0),
|
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STRUCT_FLD(field_flags, 0),
|
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STRUCT_FLD(old_name, ""),
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STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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|
|
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#define IDX_LOCK_TRX_ID 1
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{STRUCT_FLD(field_name, "lock_trx_id"),
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STRUCT_FLD(field_length, TRX_ID_MAX_LEN + 1),
|
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STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
|
|
STRUCT_FLD(value, 0),
|
|
STRUCT_FLD(field_flags, 0),
|
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STRUCT_FLD(old_name, ""),
|
|
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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|
|
|
#define IDX_LOCK_MODE 2
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{STRUCT_FLD(field_name, "lock_mode"),
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/* S[,GAP] X[,GAP] IS[,GAP] IX[,GAP] AUTO_INC UNKNOWN */
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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)},
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|
|
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#define IDX_LOCK_TYPE 3
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{STRUCT_FLD(field_name, "lock_type"),
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STRUCT_FLD(field_length, 32 /* RECORD|TABLE|UNKNOWN */),
|
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STRUCT_FLD(field_type, MYSQL_TYPE_STRING),
|
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STRUCT_FLD(value, 0),
|
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STRUCT_FLD(field_flags, 0),
|
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STRUCT_FLD(old_name, ""),
|
|
STRUCT_FLD(open_method, SKIP_OPEN_TABLE)},
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|
|
|
#define IDX_LOCK_TABLE 4
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{STRUCT_FLD(field_name, "lock_table"),
|
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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)},
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|
|
|
#define IDX_LOCK_INDEX 5
|
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{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, 0x0100 /* 1.0 */),
|
|
|
|
/* 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, 0x0100 /* 1.0 */),
|
|
|
|
/* 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; */
|
|
|
|
/* 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, 21),
|
|
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, 21),
|
|
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, 42),
|
|
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, 21),
|
|
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, 42),
|
|
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);
|
|
}
|
|
|
|
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, 0x0100 /* 1.0 */),
|
|
|
|
/* 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, 0x0100 /* 1.0 */),
|
|
|
|
/* 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, 21),
|
|
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, 21),
|
|
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, 21),
|
|
STRUCT_FLD(field_type, MYSQL_TYPE_LONG),
|
|
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, 42),
|
|
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);
|
|
}
|
|
|
|
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) {
|
|
memset(buddy_stat, 0, sizeof *buddy_stat);
|
|
}
|
|
|
|
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, 0x0100 /* 1.0 */),
|
|
|
|
/* 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, 0x0100 /* 1.0 */),
|
|
|
|
/* 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);
|
|
}
|