database/mariadb
database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-05-05 16:59:35 +03:00
Code
mariadb/sql/sql_show.cc
dlenev@brandersnatch.localdomain 09ba29e539 WL#1264 "Per-thread time zone support infrastructure". 
Added basic per-thread time zone functionality (based on public
domain elsie-code). Now user can select current time zone
(from the list of time zones described in system tables).
All NOW-like functions honor this time zone, values of TIMESTAMP
type are interpreted as values in this time zone, so now
our TIMESTAMP type behaves similar to Oracle's TIMESTAMP WITH
LOCAL TIME ZONE (or proper PostgresSQL type).
  
WL#1266 "CONVERT_TZ() - basic time with time zone conversion 
function".
  
Fixed problems described in Bug #2336 (Different number of warnings 
when inserting bad datetime as string or as number). This required
reworking of datetime realted warning hadling (they now generated 
at Field object level not in conversion functions).
  
Optimization: Now Field class descendants use table->in_use member
instead of current_thd macro.
2004-06-18 10:11:31 +04:00

2046 lines
64 KiB
C++
Raw Blame History

/* Copyright (C) 2000 MySQL AB
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 Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Function with list databases, tables or fields */
#include "mysql_priv.h"
#include "sql_select.h" // For select_describe
#include "sql_acl.h"
#include "repl_failsafe.h"
#include <my_dir.h>
#ifdef HAVE_BERKELEY_DB
#include "ha_berkeley.h" // For berkeley_show_logs
#endif
static const char *grant_names[]={
"select","insert","update","delete","create","drop","reload","shutdown",
"process","file","grant","references","index","alter"};
#ifndef NO_EMBEDDED_ACCESS_CHECKS
static TYPELIB grant_types = { sizeof(grant_names)/sizeof(char **),
"grant_types",
grant_names};
#endif
static int mysql_find_files(THD *thd,List<char> *files, const char *db,
const char *path, const char *wild, bool dir);
static int
store_create_info(THD *thd, TABLE *table, String *packet);
/*
Report list of databases
A database is a directory in the mysql_data_home directory
*/
int
mysqld_show_dbs(THD *thd,const char *wild)
{
Item_string *field=new Item_string("",0,thd->charset());
List<Item> field_list;
char *end;
List<char> files;
char *file_name;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_dbs");
field->name=(char*) thd->alloc(20+ (wild ? (uint) strlen(wild)+4: 0));
field->max_length=NAME_LEN;
end=strmov(field->name,"Database");
if (wild && wild[0])
strxmov(end," (",wild,")",NullS);
field_list.push_back(field);
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
if (mysql_find_files(thd,&files,NullS,mysql_data_home,wild,1))
DBUG_RETURN(1);
List_iterator_fast<char> it(files);
while ((file_name=it++))
{
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (thd->master_access & (DB_ACLS | SHOW_DB_ACL) ||
acl_get(thd->host, thd->ip, thd->priv_user, file_name,0) ||
(grant_option && !check_grant_db(thd, file_name)))
#endif
{
protocol->prepare_for_resend();
protocol->store(file_name, system_charset_info);
if (protocol->write())
DBUG_RETURN(-1);
}
}
send_eof(thd);
DBUG_RETURN(0);
}
/***************************************************************************
List all open tables in a database
***************************************************************************/
int mysqld_show_open_tables(THD *thd,const char *wild)
{
List<Item> field_list;
OPEN_TABLE_LIST *open_list;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_open_tables");
field_list.push_back(new Item_empty_string("Database",NAME_LEN));
field_list.push_back(new Item_empty_string("Table",NAME_LEN));
field_list.push_back(new Item_return_int("In_use", 1, MYSQL_TYPE_TINY));
field_list.push_back(new Item_return_int("Name_locked", 4, MYSQL_TYPE_TINY));
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
if (!(open_list=list_open_tables(thd,wild)) && thd->is_fatal_error)
DBUG_RETURN(-1);
for (; open_list ; open_list=open_list->next)
{
protocol->prepare_for_resend();
protocol->store(open_list->db, system_charset_info);
protocol->store(open_list->table, system_charset_info);
protocol->store_tiny((longlong) open_list->in_use);
protocol->store_tiny((longlong) open_list->locked);
if (protocol->write())
{
DBUG_RETURN(-1);
}
}
send_eof(thd);
DBUG_RETURN(0);
}
/***************************************************************************
** List all tables in a database (fast version)
** A table is a .frm file in the current databasedir
***************************************************************************/
int mysqld_show_tables(THD *thd,const char *db,const char *wild)
{
Item_string *field=new Item_string("",0,thd->charset());
List<Item> field_list;
char path[FN_LEN],*end;
List<char> files;
char *file_name;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_tables");
field->name=(char*) thd->alloc(20+(uint) strlen(db)+
(wild ? (uint) strlen(wild)+4:0));
end=strxmov(field->name,"Tables_in_",db,NullS);
if (wild && wild[0])
strxmov(end," (",wild,")",NullS);
field->max_length=NAME_LEN;
(void) sprintf(path,"%s/%s",mysql_data_home,db);
(void) unpack_dirname(path,path);
field_list.push_back(field);
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
if (mysql_find_files(thd,&files,db,path,wild,0))
DBUG_RETURN(-1);
List_iterator_fast<char> it(files);
while ((file_name=it++))
{
protocol->prepare_for_resend();
protocol->store(file_name, system_charset_info);
if (protocol->write())
DBUG_RETURN(-1);
}
send_eof(thd);
DBUG_RETURN(0);
}
/***************************************************************************
** List all table types supported
***************************************************************************/
int mysqld_show_storage_engines(THD *thd)
{
List<Item> field_list;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_storage_engines");
field_list.push_back(new Item_empty_string("Engine",10));
field_list.push_back(new Item_empty_string("Support",10));
field_list.push_back(new Item_empty_string("Comment",80));
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
const char *default_type_name=
ha_get_storage_engine((enum db_type)thd->variables.table_type);
show_table_type_st *types;
for (types= sys_table_types; types->type; types++)
{
protocol->prepare_for_resend();
protocol->store(types->type, system_charset_info);
const char *option_name= show_comp_option_name[(int) *types->value];
if (*types->value == SHOW_OPTION_YES &&
!my_strcasecmp(system_charset_info, default_type_name, types->type))
option_name= "DEFAULT";
protocol->store(option_name, system_charset_info);
protocol->store(types->comment, system_charset_info);
if (protocol->write())
DBUG_RETURN(-1);
}
send_eof(thd);
DBUG_RETURN(0);
}
/***************************************************************************
List all privileges supported
***************************************************************************/
struct show_privileges_st {
const char *privilege;
const char *context;
const char *comment;
};
static struct show_privileges_st sys_privileges[]=
{
{"Alter", "Tables", "To alter the table"},
{"Create temporary tables","Databases","To use CREATE TEMPORARY TABLE"},
{"Create", "Databases,Tables,Indexes", "To create new databases and tables"},
{"Delete", "Tables", "To delete existing rows"},
{"Drop", "Databases,Tables", "To drop databases and tables"},
{"File", "File access on server", "To read and write files on the server"},
{"Grant option", "Databases,Tables", "To give to other users those privileges you possess"},
{"Index", "Tables", "To create or drop indexes"},
{"Insert", "Tables", "To insert data into tables"},
{"Lock tables","Databases","To use LOCK TABLES (together with SELECT privilege)"},
{"Process", "Server Admin", "To view the plain text of currently executing queries"},
{"References", "Databases,Tables", "To have references on tables"},
{"Reload", "Server Admin", "To reload or refresh tables, logs and privileges"},
{"Replication client","Server Admin","To ask where the slave or master servers are"},
{"Replication slave","Server Admin","To read binary log events from the master"},
{"Select", "Tables", "To retrieve rows from table"},
{"Show databases","Server Admin","To see all databases with SHOW DATABASES"},
{"Shutdown","Server Admin", "To shutdown the server"},
{"Super","Server Admin","To use KILL thread, SET GLOBAL, CHANGE MASTER, etc."},
{"Update", "Tables", "To update existing rows"},
{"Usage","Server Admin","No privileges - allow connect only"},
{NullS, NullS, NullS}
};
int mysqld_show_privileges(THD *thd)
{
List<Item> field_list;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_privileges");
field_list.push_back(new Item_empty_string("Privilege",10));
field_list.push_back(new Item_empty_string("Context",15));
field_list.push_back(new Item_empty_string("Comment",NAME_LEN));
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
show_privileges_st *privilege= sys_privileges;
for (privilege= sys_privileges; privilege->privilege ; privilege++)
{
protocol->prepare_for_resend();
protocol->store(privilege->privilege, system_charset_info);
protocol->store(privilege->context, system_charset_info);
protocol->store(privilege->comment, system_charset_info);
if (protocol->write())
DBUG_RETURN(-1);
}
send_eof(thd);
DBUG_RETURN(0);
}
/***************************************************************************
List all column types
***************************************************************************/
struct show_column_type_st
{
const char *type;
uint size;
const char *min_value;
const char *max_value;
uint precision;
uint scale;
const char *nullable;
const char *auto_increment;
const char *unsigned_attr;
const char *zerofill;
const char *searchable;
const char *case_sensitivity;
const char *default_value;
const char *comment;
};
/* TODO: Add remaning types */
static struct show_column_type_st sys_column_types[]=
{
{"tinyint",
1, "-128", "127", 0, 0, "YES", "YES",
"NO", "YES", "YES", "NO", "NULL,0",
"A very small integer"},
{"tinyint unsigned",
1, "0" , "255", 0, 0, "YES", "YES",
"YES", "YES", "YES", "NO", "NULL,0",
"A very small integer"},
};
int mysqld_show_column_types(THD *thd)
{
List<Item> field_list;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_column_types");
field_list.push_back(new Item_empty_string("Type",30));
field_list.push_back(new Item_int("Size",(longlong) 1,21));
field_list.push_back(new Item_empty_string("Min_Value",20));
field_list.push_back(new Item_empty_string("Max_Value",20));
field_list.push_back(new Item_return_int("Prec", 4, MYSQL_TYPE_SHORT));
field_list.push_back(new Item_return_int("Scale", 4, MYSQL_TYPE_SHORT));
field_list.push_back(new Item_empty_string("Nullable",4));
field_list.push_back(new Item_empty_string("Auto_Increment",4));
field_list.push_back(new Item_empty_string("Unsigned",4));
field_list.push_back(new Item_empty_string("Zerofill",4));
field_list.push_back(new Item_empty_string("Searchable",4));
field_list.push_back(new Item_empty_string("Case_Sensitive",4));
field_list.push_back(new Item_empty_string("Default",NAME_LEN));
field_list.push_back(new Item_empty_string("Comment",NAME_LEN));
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
/* TODO: Change the loop to not use 'i' */
for (uint i=0; i < sizeof(sys_column_types)/sizeof(sys_column_types[0]); i++)
{
protocol->prepare_for_resend();
protocol->store(sys_column_types[i].type, system_charset_info);
protocol->store((ulonglong) sys_column_types[i].size);
protocol->store(sys_column_types[i].min_value, system_charset_info);
protocol->store(sys_column_types[i].max_value, system_charset_info);
protocol->store_short((longlong) sys_column_types[i].precision);
protocol->store_short((longlong) sys_column_types[i].scale);
protocol->store(sys_column_types[i].nullable, system_charset_info);
protocol->store(sys_column_types[i].auto_increment, system_charset_info);
protocol->store(sys_column_types[i].unsigned_attr, system_charset_info);
protocol->store(sys_column_types[i].zerofill, system_charset_info);
protocol->store(sys_column_types[i].searchable, system_charset_info);
protocol->store(sys_column_types[i].case_sensitivity, system_charset_info);
protocol->store(sys_column_types[i].default_value, system_charset_info);
protocol->store(sys_column_types[i].comment, system_charset_info);
if (protocol->write())
DBUG_RETURN(-1);
}
send_eof(thd);
DBUG_RETURN(0);
}
static int
mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
const char *wild, bool dir)
{
uint i;
char *ext;
MY_DIR *dirp;
FILEINFO *file;
#ifndef NO_EMBEDDED_ACCESS_CHECKS
uint col_access=thd->col_access;
#endif
TABLE_LIST table_list;
DBUG_ENTER("mysql_find_files");
if (wild && !wild[0])
wild=0;
bzero((char*) &table_list,sizeof(table_list));
if (!(dirp = my_dir(path,MYF(MY_WME | (dir ? MY_WANT_STAT : 0)))))
DBUG_RETURN(-1);
for (i=0 ; i < (uint) dirp->number_off_files ; i++)
{
file=dirp->dir_entry+i;
if (dir)
{ /* Return databases */
#ifdef USE_SYMDIR
char *ext;
if (my_use_symdir && !strcmp(ext=fn_ext(file->name), ".sym"))
{
/* Only show the sym file if it points to a directory */
char buff[FN_REFLEN], *end;
MY_STAT status;
*ext=0; /* Remove extension */
unpack_dirname(buff, file->name);
end= strend(buff);
if (end != buff && end[-1] == FN_LIBCHAR)
end[-1]= 0; // Remove end FN_LIBCHAR
if (!my_stat(buff, &status, MYF(0)) ||
!MY_S_ISDIR(status.st_mode))
continue;
}
else
#endif
{
if (file->name[0] == '.' || !MY_S_ISDIR(file->mystat->st_mode) ||
(wild && wild_compare(file->name,wild,0)))
continue;
}
}
else
{
// Return only .frm files which aren't temp files.
if (my_strcasecmp(system_charset_info, ext=fn_ext(file->name),reg_ext) ||
is_prefix(file->name,tmp_file_prefix))
continue;
*ext=0;
if (wild)
{
if (lower_case_table_names)
{
if (wild_case_compare(files_charset_info, file->name, wild))
continue;
}
else if (wild_compare(file->name,wild,0))
continue;
}
}
#ifndef NO_EMBEDDED_ACCESS_CHECKS
/* Don't show tables where we don't have any privileges */
if (db && !(col_access & TABLE_ACLS))
{
table_list.db= (char*) db;
table_list.real_name=file->name;
table_list.grant.privilege=col_access;
if (check_grant(thd, TABLE_ACLS, &table_list, 1, UINT_MAX, 1))
continue;
}
#endif
if (files->push_back(thd->strdup(file->name)))
{
my_dirend(dirp);
DBUG_RETURN(-1);
}
}
DBUG_PRINT("info",("found: %d files", files->elements));
my_dirend(dirp);
DBUG_RETURN(0);
}
/***************************************************************************
Extended version of mysqld_show_tables
***************************************************************************/
int mysqld_extend_show_tables(THD *thd,const char *db,const char *wild)
{
Item *item;
List<char> files;
List<Item> field_list;
char path[FN_LEN];
char *file_name;
TABLE *table;
Protocol *protocol= thd->protocol;
TIME time;
DBUG_ENTER("mysqld_extend_show_tables");
(void) sprintf(path,"%s/%s",mysql_data_home,db);
(void) unpack_dirname(path,path);
field_list.push_back(item=new Item_empty_string("Name",NAME_LEN));
field_list.push_back(item=new Item_empty_string("Engine",10));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Row_format",10));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Rows",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Avg_row_length",(int32) 0,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Data_length",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Max_data_length",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Index_length",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Data_free",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Auto_increment",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_datetime("Create_time"));
item->maybe_null=1;
field_list.push_back(item=new Item_datetime("Update_time"));
item->maybe_null=1;
field_list.push_back(item=new Item_datetime("Check_time"));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Collation",32));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Checksum",(longlong) 1,21));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Create_options",255));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Comment",80));
item->maybe_null=1;
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
if (mysql_find_files(thd,&files,db,path,wild,0))
DBUG_RETURN(-1);
List_iterator_fast<char> it(files);
while ((file_name=it++))
{
TABLE_LIST table_list;
bzero((char*) &table_list,sizeof(table_list));
protocol->prepare_for_resend();
protocol->store(file_name, system_charset_info);
table_list.db=(char*) db;
table_list.real_name= table_list.alias= file_name;
if (lower_case_table_names)
my_casedn_str(files_charset_info, file_name);
if (!(table = open_ltable(thd, &table_list, TL_READ)))
{
for (uint i=2 ; i < field_list.elements ; i++)
protocol->store_null();
// Send error to Comment field
protocol->store(thd->net.last_error, system_charset_info);
thd->clear_error();
}
else
{
const char *str;
handler *file=table->file;
file->info(HA_STATUS_VARIABLE | HA_STATUS_TIME | HA_STATUS_NO_LOCK);
protocol->store(file->table_type(), system_charset_info);
str= ((table->db_options_in_use & HA_OPTION_COMPRESS_RECORD) ?
"Compressed" :
(table->db_options_in_use & HA_OPTION_PACK_RECORD) ?
"Dynamic" : "Fixed");
protocol->store(str, system_charset_info);
protocol->store((ulonglong) file->records);
protocol->store((ulonglong) file->mean_rec_length);
protocol->store((ulonglong) file->data_file_length);
if (file->max_data_file_length)
protocol->store((ulonglong) file->max_data_file_length);
else
protocol->store_null();
protocol->store((ulonglong) file->index_file_length);
protocol->store((ulonglong) file->delete_length);
if (table->found_next_number_field)
{
table->next_number_field=table->found_next_number_field;
table->next_number_field->reset();
file->update_auto_increment();
protocol->store(table->next_number_field->val_int());
table->next_number_field=0;
}
else
protocol->store_null();
if (!file->create_time)
protocol->store_null();
else
{
thd->variables.time_zone->gmt_sec_to_TIME(&time, file->create_time);
protocol->store(&time);
}
if (!file->update_time)
protocol->store_null();
else
{
thd->variables.time_zone->gmt_sec_to_TIME(&time, file->update_time);
protocol->store(&time);
}
if (!file->check_time)
protocol->store_null();
else
{
thd->variables.time_zone->gmt_sec_to_TIME(&time, file->check_time);
protocol->store(&time);
}
str= (table->table_charset ? table->table_charset->name : "default");
protocol->store(str, system_charset_info);
if (file->table_flags() & HA_HAS_CHECKSUM)
protocol->store((ulonglong)file->checksum());
else
protocol->store_null(); // Checksum
{
char option_buff[350],*ptr;
ptr=option_buff;
if (table->min_rows)
{
ptr=strmov(ptr," min_rows=");
ptr=longlong10_to_str(table->min_rows,ptr,10);
}
if (table->max_rows)
{
ptr=strmov(ptr," max_rows=");
ptr=longlong10_to_str(table->max_rows,ptr,10);
}
if (table->avg_row_length)
{
ptr=strmov(ptr," avg_row_length=");
ptr=longlong10_to_str(table->avg_row_length,ptr,10);
}
if (table->db_create_options & HA_OPTION_PACK_KEYS)
ptr=strmov(ptr," pack_keys=1");
if (table->db_create_options & HA_OPTION_NO_PACK_KEYS)
ptr=strmov(ptr," pack_keys=0");
if (table->db_create_options & HA_OPTION_CHECKSUM)
ptr=strmov(ptr," checksum=1");
if (table->db_create_options & HA_OPTION_DELAY_KEY_WRITE)
ptr=strmov(ptr," delay_key_write=1");
if (table->row_type != ROW_TYPE_DEFAULT)
ptr=strxmov(ptr, " row_format=", ha_row_type[(uint) table->row_type],
NullS);
if (file->raid_type)
{
char buff[100];
sprintf(buff," raid_type=%s raid_chunks=%d raid_chunksize=%ld",
my_raid_type(file->raid_type), file->raid_chunks, file->raid_chunksize/RAID_BLOCK_SIZE);
ptr=strmov(ptr,buff);
}
protocol->store(option_buff+1,
(ptr == option_buff ? 0 : (uint) (ptr-option_buff)-1)
, system_charset_info);
}
{
char *comment=table->file->update_table_comment(table->comment);
protocol->store(comment, system_charset_info);
if (comment != table->comment)
my_free(comment,MYF(0));
}
close_thread_tables(thd,0);
}
if (protocol->write())
DBUG_RETURN(-1);
}
send_eof(thd);
DBUG_RETURN(0);
}
/***************************************************************************
** List all columns in a table_list->real_name
***************************************************************************/
int
mysqld_show_fields(THD *thd, TABLE_LIST *table_list,const char *wild,
bool verbose)
{
TABLE *table;
handler *file;
char tmp[MAX_FIELD_WIDTH];
Item *item;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_fields");
DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
table_list->real_name));
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(thd);
DBUG_RETURN(1);
}
file=table->file;
file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK);
#ifndef NO_EMBEDDED_ACCESS_CHECKS
(void) get_table_grant(thd, table_list);
#endif
List<Item> field_list;
field_list.push_back(new Item_empty_string("Field",NAME_LEN));
field_list.push_back(new Item_empty_string("Type",40));
if (verbose)
field_list.push_back(new Item_empty_string("Collation",40));
field_list.push_back(new Item_empty_string("Null",1));
field_list.push_back(new Item_empty_string("Key",3));
field_list.push_back(item=new Item_empty_string("Default",NAME_LEN));
item->maybe_null=1;
field_list.push_back(new Item_empty_string("Extra",20));
if (verbose)
{
field_list.push_back(new Item_empty_string("Privileges",80));
field_list.push_back(new Item_empty_string("Comment",255));
}
// Send first number of fields and records
if (protocol->send_records_num(&field_list, (ulonglong)file->records) ||
protocol->send_fields(&field_list,0))
DBUG_RETURN(1);
restore_record(table,default_values); // Get empty record
Field **ptr,*field;
for (ptr=table->field; (field= *ptr) ; ptr++)
{
if (!wild || !wild[0] ||
!wild_case_compare(system_charset_info, field->field_name,wild))
{
{
byte *pos;
uint flags=field->flags;
String type(tmp,sizeof(tmp), system_charset_info);
uint col_access;
protocol->prepare_for_resend();
protocol->store(field->field_name, system_charset_info);
field->sql_type(type);
protocol->store(type.ptr(), type.length(), system_charset_info);
if (verbose)
protocol->store(field->has_charset() ? field->charset()->name : "NULL",
system_charset_info);
/*
Altough TIMESTAMP fields can't contain NULL as its value they
will accept NULL if you will try to insert such value and will
convert it to current TIMESTAMP. So YES here means that NULL
is allowed for assignment but can't be returned.
*/
pos=(byte*) ((flags & NOT_NULL_FLAG) &&
field->type() != FIELD_TYPE_TIMESTAMP ?
"" : "YES");
protocol->store((const char*) pos, system_charset_info);
pos=(byte*) ((field->flags & PRI_KEY_FLAG) ? "PRI" :
(field->flags & UNIQUE_KEY_FLAG) ? "UNI" :
(field->flags & MULTIPLE_KEY_FLAG) ? "MUL":"");
protocol->store((char*) pos, system_charset_info);
if (table->timestamp_field == field &&
field->unireg_check != Field::TIMESTAMP_UN_FIELD)
{
/*
We have NOW() as default value but we use CURRENT_TIMESTAMP form
because it is more SQL standard comatible
*/
protocol->store("CURRENT_TIMESTAMP", system_charset_info);
}
else if (field->unireg_check != Field::NEXT_NUMBER &&
!field->is_null())
{ // Not null by default
type.set(tmp, sizeof(tmp), field->charset());
field->val_str(&type);
protocol->store(type.ptr(),type.length(),type.charset());
}
else if (field->unireg_check == Field::NEXT_NUMBER ||
field->maybe_null())
protocol->store_null(); // Null as default
else
protocol->store("",0, system_charset_info); // empty string
char *end=tmp;
if (field->unireg_check == Field::NEXT_NUMBER)
end=strmov(tmp,"auto_increment");
protocol->store(tmp,(uint) (end-tmp), system_charset_info);
if (verbose)
{
/* Add grant options & comments */
end=tmp;
#ifndef NO_EMBEDDED_ACCESS_CHECKS
col_access= get_column_grant(thd,table_list,field) & COL_ACLS;
for (uint bitnr=0; col_access ; col_access>>=1,bitnr++)
{
if (col_access & 1)
{
*end++=',';
end=strmov(end,grant_types.type_names[bitnr]);
}
}
#else
end=strmov(end,"");
#endif
protocol->store(tmp+1,end == tmp ? 0 : (uint) (end-tmp-1),
system_charset_info);
protocol->store(field->comment.str, field->comment.length,
system_charset_info);
}
if (protocol->write())
DBUG_RETURN(1);
}
}
}
send_eof(thd);
DBUG_RETURN(0);
}
int
mysqld_show_create(THD *thd, TABLE_LIST *table_list)
{
TABLE *table;
Protocol *protocol= thd->protocol;
char buff[2048];
String buffer(buff, sizeof(buff), system_charset_info);
DBUG_ENTER("mysqld_show_create");
DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
table_list->real_name));
/* Only one table for now */
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(thd);
DBUG_RETURN(1);
}
if (store_create_info(thd, table, &buffer))
DBUG_RETURN(-1);
List<Item> field_list;
field_list.push_back(new Item_empty_string("Table",NAME_LEN));
// 1024 is for not to confuse old clients
field_list.push_back(new Item_empty_string("Create Table",
max(buffer.length(),1024)));
if (protocol->send_fields(&field_list, 1))
DBUG_RETURN(1);
protocol->prepare_for_resend();
protocol->store(table->table_name, system_charset_info);
buffer.length(0);
if (store_create_info(thd, table, &buffer))
DBUG_RETURN(-1);
protocol->store(buffer.ptr(), buffer.length(), buffer.charset());
if (protocol->write())
DBUG_RETURN(1);
send_eof(thd);
DBUG_RETURN(0);
}
int mysqld_show_create_db(THD *thd, char *dbname,
HA_CREATE_INFO *create_info)
{
int length;
char path[FN_REFLEN];
char buff[2048];
String buffer(buff, sizeof(buff), system_charset_info);
#ifndef NO_EMBEDDED_ACCESS_CHECKS
uint db_access;
#endif
bool found_libchar;
HA_CREATE_INFO create;
uint create_options = create_info ? create_info->options : 0;
Protocol *protocol=thd->protocol;
DBUG_ENTER("mysql_show_create_db");
if (check_db_name(dbname))
{
net_printf(thd,ER_WRONG_DB_NAME, dbname);
DBUG_RETURN(1);
}
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (test_all_bits(thd->master_access,DB_ACLS))
db_access=DB_ACLS;
else
db_access= (acl_get(thd->host,thd->ip, thd->priv_user,dbname,0) |
thd->master_access);
if (!(db_access & DB_ACLS) && (!grant_option || check_grant_db(thd,dbname)))
{
net_printf(thd,ER_DBACCESS_DENIED_ERROR,
thd->priv_user, thd->host_or_ip, dbname);
mysql_log.write(thd,COM_INIT_DB,ER(ER_DBACCESS_DENIED_ERROR),
thd->priv_user, thd->host_or_ip, dbname);
DBUG_RETURN(1);
}
#endif
(void) sprintf(path,"%s/%s",mysql_data_home, dbname);
length=unpack_dirname(path,path); // Convert if not unix
found_libchar= 0;
if (length && path[length-1] == FN_LIBCHAR)
{
found_libchar= 1;
path[length-1]=0; // remove ending '\'
}
if (access(path,F_OK))
{
net_printf(thd,ER_BAD_DB_ERROR,dbname);
DBUG_RETURN(1);
}
if (found_libchar)
path[length-1]= FN_LIBCHAR;
strmov(path+length, MY_DB_OPT_FILE);
load_db_opt(thd, path, &create);
List<Item> field_list;
field_list.push_back(new Item_empty_string("Database",NAME_LEN));
field_list.push_back(new Item_empty_string("Create Database",1024));
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
protocol->prepare_for_resend();
protocol->store(dbname, strlen(dbname), system_charset_info);
buffer.length(0);
buffer.append("CREATE DATABASE ", 16);
if (create_options & HA_LEX_CREATE_IF_NOT_EXISTS)
buffer.append("/*!32312 IF NOT EXISTS*/ ", 25);
append_identifier(thd, &buffer, dbname, strlen(dbname));
if (create.default_table_charset)
{
buffer.append(" /*!40100", 9);
buffer.append(" DEFAULT CHARACTER SET ", 23);
buffer.append(create.default_table_charset->csname);
if (!(create.default_table_charset->state & MY_CS_PRIMARY))
{
buffer.append(" COLLATE ", 9);
buffer.append(create.default_table_charset->name);
}
buffer.append(" */", 3);
}
protocol->store(buffer.ptr(), buffer.length(), buffer.charset());
if (protocol->write())
DBUG_RETURN(1);
send_eof(thd);
DBUG_RETURN(0);
}
int
mysqld_show_logs(THD *thd)
{
List<Item> field_list;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_logs");
field_list.push_back(new Item_empty_string("File",FN_REFLEN));
field_list.push_back(new Item_empty_string("Type",10));
field_list.push_back(new Item_empty_string("Status",10));
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
#ifdef HAVE_BERKELEY_DB
if ((have_berkeley_db == SHOW_OPTION_YES) && berkeley_show_logs(protocol))
DBUG_RETURN(-1);
#endif
send_eof(thd);
DBUG_RETURN(0);
}
int
mysqld_show_keys(THD *thd, TABLE_LIST *table_list)
{
TABLE *table;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_keys");
DBUG_PRINT("enter",("db: %s table: %s",table_list->db,
table_list->real_name));
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(thd);
DBUG_RETURN(1);
}
List<Item> field_list;
Item *item;
field_list.push_back(new Item_empty_string("Table",NAME_LEN));
field_list.push_back(new Item_return_int("Non_unique",1, MYSQL_TYPE_TINY));
field_list.push_back(new Item_empty_string("Key_name",NAME_LEN));
field_list.push_back(new Item_return_int("Seq_in_index",2, MYSQL_TYPE_TINY));
field_list.push_back(new Item_empty_string("Column_name",NAME_LEN));
field_list.push_back(item=new Item_empty_string("Collation",1));
item->maybe_null=1;
field_list.push_back(item=new Item_int("Cardinality",0,21));
item->maybe_null=1;
field_list.push_back(item=new Item_return_int("Sub_part",3,
MYSQL_TYPE_TINY));
item->maybe_null=1;
field_list.push_back(item=new Item_empty_string("Packed",10));
item->maybe_null=1;
field_list.push_back(new Item_empty_string("Null",3));
field_list.push_back(new Item_empty_string("Index_type",16));
field_list.push_back(new Item_empty_string("Comment",255));
item->maybe_null=1;
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1);
KEY *key_info=table->key_info;
table->file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK | HA_STATUS_TIME);
for (uint i=0 ; i < table->keys ; i++,key_info++)
{
KEY_PART_INFO *key_part= key_info->key_part;
const char *str;
for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
{
protocol->prepare_for_resend();
protocol->store(table->table_name, system_charset_info);
protocol->store_tiny((longlong) ((key_info->flags & HA_NOSAME) ? 0 :1));
protocol->store(key_info->name, system_charset_info);
protocol->store_tiny((longlong) (j+1));
str=(key_part->field ? key_part->field->field_name :
"?unknown field?");
protocol->store(str, system_charset_info);
if (table->file->index_flags(i) & HA_READ_ORDER)
protocol->store(((key_part->key_part_flag & HA_REVERSE_SORT) ?
"D" : "A"), 1, system_charset_info);
else
protocol->store_null(); /* purecov: inspected */
KEY *key=table->key_info+i;
if (key->rec_per_key[j])
{
ha_rows records=(table->file->records / key->rec_per_key[j]);
protocol->store((ulonglong) records);
}
else
protocol->store_null();
/* Check if we have a key part that only uses part of the field */
if (!(key_info->flags & HA_FULLTEXT) && (!key_part->field ||
key_part->length != table->field[key_part->fieldnr-1]->key_length()))
protocol->store_tiny((longlong) key_part->length);
else
protocol->store_null();
protocol->store_null(); // No pack_information yet
/* Null flag */
uint flags= key_part->field ? key_part->field->flags : 0;
char *pos=(char*) ((flags & NOT_NULL_FLAG) ? "" : "YES");
protocol->store((const char*) pos, system_charset_info);
protocol->store(table->file->index_type(i), system_charset_info);
/* Comment */
if (!table->keys_in_use.is_set(i))
protocol->store("disabled",8, system_charset_info);
else
protocol->store("", 0, system_charset_info);
if (protocol->write())
DBUG_RETURN(1); /* purecov: inspected */
}
}
send_eof(thd);
DBUG_RETURN(0);
}
/****************************************************************************
Return only fields for API mysql_list_fields
Use "show table wildcard" in mysql instead of this
****************************************************************************/
void
mysqld_list_fields(THD *thd, TABLE_LIST *table_list, const char *wild)
{
TABLE *table;
DBUG_ENTER("mysqld_list_fields");
DBUG_PRINT("enter",("table: %s",table_list->real_name));
if (!(table = open_ltable(thd, table_list, TL_UNLOCK)))
{
send_error(thd);
DBUG_VOID_RETURN;
}
List<Item> field_list;
Field **ptr,*field;
for (ptr=table->field ; (field= *ptr); ptr++)
{
if (!wild || !wild[0] ||
!wild_case_compare(system_charset_info, field->field_name,wild))
field_list.push_back(new Item_field(field));
}
restore_record(table,default_values); // Get empty record
if (thd->protocol->send_fields(&field_list,2))
DBUG_VOID_RETURN;
net_flush(&thd->net);
DBUG_VOID_RETURN;
}
int
mysqld_dump_create_info(THD *thd, TABLE *table, int fd)
{
Protocol *protocol= thd->protocol;
String *packet= protocol->storage_packet();
DBUG_ENTER("mysqld_dump_create_info");
DBUG_PRINT("enter",("table: %s",table->real_name));
protocol->prepare_for_resend();
if (store_create_info(thd, table, packet))
DBUG_RETURN(-1);
//if (protocol->convert)
// protocol->convert->convert((char*) packet->ptr(), packet->length());
if (fd < 0)
{
if (protocol->write())
DBUG_RETURN(-1);
net_flush(&thd->net);
}
else
{
if (my_write(fd, (const byte*) packet->ptr(), packet->length(),
MYF(MY_WME)))
DBUG_RETURN(-1);
}
DBUG_RETURN(0);
}
/*
Go through all character combinations and ensure that sql_lex.cc can
parse it as an identifer.
SYNOPSIS
require_quotes()
name attribute name
name_length length of name
RETURN
# Pointer to conflicting character
0 No conflicting character
*/
static const char *require_quotes(const char *name, uint name_length)
{
uint length;
const char *end= name + name_length;
for ( ; name < end ; name++)
{
uchar chr= (uchar) *name;
length= my_mbcharlen(system_charset_info, chr);
if (length == 1 && !system_charset_info->ident_map[chr])
return name;
}
return 0;
}
static void append_quoted_simple_identifier(String *packet, char quote_char,
const char *name, uint length)
{
packet->append(&quote_char, 1, system_charset_info);
packet->append(name, length, system_charset_info);
packet->append(&quote_char, 1, system_charset_info);
}
void
append_identifier(THD *thd, String *packet, const char *name, uint length)
{
const char *name_end;
char quote_char;
if (thd->variables.sql_mode & MODE_ANSI_QUOTES)
quote_char= '\"';
else
quote_char= '`';
if (is_keyword(name,length))
{
append_quoted_simple_identifier(packet, quote_char, name, length);
return;
}
if (!require_quotes(name, length))
{
if (!(thd->options & OPTION_QUOTE_SHOW_CREATE))
packet->append(name, length, system_charset_info);
else
append_quoted_simple_identifier(packet, quote_char, name, length);
return;
}
/* The identifier must be quoted as it includes a quote character */
packet->reserve(length*2 + 2);
packet->append(&quote_char, 1, system_charset_info);
for (name_end= name+length ; name < name_end ; name+= length)
{
char chr= *name;
length= my_mbcharlen(system_charset_info, chr);
if (length == 1 && chr == quote_char)
packet->append(&quote_char, 1, system_charset_info);
packet->append(name, length, packet->charset());
}
packet->append(&quote_char, 1, system_charset_info);
}
/* Append directory name (if exists) to CREATE INFO */
static void append_directory(THD *thd, String *packet, const char *dir_type,
const char *filename)
{
uint length;
if (filename && !(thd->variables.sql_mode & MODE_NO_DIR_IN_CREATE))
{
length= dirname_length(filename);
packet->append(' ');
packet->append(dir_type);
packet->append(" DIRECTORY='", 12);
packet->append(filename, length);
packet->append('\'');
}
}
#define LIST_PROCESS_HOST_LEN 64
static int
store_create_info(THD *thd, TABLE *table, String *packet)
{
List<Item> field_list;
char tmp[MAX_FIELD_WIDTH], *for_str, buff[128], *end, *alias;
String type(tmp, sizeof(tmp), system_charset_info);
Field **ptr,*field;
uint primary_key;
KEY *key_info;
handler *file= table->file;
HA_CREATE_INFO create_info;
my_bool foreign_db_mode= (thd->variables.sql_mode & (MODE_POSTGRESQL |
MODE_ORACLE |
MODE_MSSQL |
MODE_DB2 |
MODE_MAXDB |
MODE_ANSI)) != 0;
my_bool limited_mysql_mode= (thd->variables.sql_mode &
(MODE_NO_FIELD_OPTIONS | MODE_MYSQL323 |
MODE_MYSQL40)) != 0;
DBUG_ENTER("store_create_info");
DBUG_PRINT("enter",("table: %s",table->real_name));
restore_record(table,default_values); // Get empty record
if (table->tmp_table)
packet->append("CREATE TEMPORARY TABLE ", 23);
else
packet->append("CREATE TABLE ", 13);
alias= (lower_case_table_names == 2 ? table->table_name :
table->real_name);
append_identifier(thd, packet, alias, strlen(alias));
packet->append(" (\n", 3);
for (ptr=table->field ; (field= *ptr); ptr++)
{
bool has_default;
bool has_now_default;
uint flags = field->flags;
if (ptr != table->field)
packet->append(",\n", 2);
packet->append(" ", 2);
append_identifier(thd,packet,field->field_name, strlen(field->field_name));
packet->append(' ');
// check for surprises from the previous call to Field::sql_type()
if (type.ptr() != tmp)
type.set(tmp, sizeof(tmp), system_charset_info);
field->sql_type(type);
packet->append(type.ptr(), type.length(), system_charset_info);
if (field->has_charset() && !limited_mysql_mode && !foreign_db_mode)
{
if (field->charset() != table->table_charset)
{
packet->append(" character set ", 15);
packet->append(field->charset()->csname);
}
/*
For string types dump collation name only if
collation is not primary for the given charset
*/
if (!(field->charset()->state & MY_CS_PRIMARY))
{
packet->append(" collate ", 9);
packet->append(field->charset()->name);
}
}
if (flags & NOT_NULL_FLAG)
packet->append(" NOT NULL", 9);
/*
Again we are using CURRENT_TIMESTAMP instead of NOW because it is
more standard
*/
has_now_default= table->timestamp_field == field &&
field->unireg_check != Field::TIMESTAMP_UN_FIELD;
has_default= (field->type() != FIELD_TYPE_BLOB &&
field->unireg_check != Field::NEXT_NUMBER &&
!((foreign_db_mode || limited_mysql_mode) &&
has_now_default));
if (has_default)
{
packet->append(" default ", 9);
if (has_now_default)
packet->append("CURRENT_TIMESTAMP",17);
else if (!field->is_null())
{ // Not null by default
type.set(tmp, sizeof(tmp), field->charset());
field->val_str(&type);
if (type.length())
{
String def_val;
/* convert to system_charset_info == utf8 */
def_val.copy(type.ptr(), type.length(), field->charset(),
system_charset_info);
append_unescaped(packet, def_val.ptr(), def_val.length());
}
else
packet->append("''",2);
}
else if (field->maybe_null())
packet->append("NULL", 4); // Null as default
else
packet->append(tmp);
}
if (!foreign_db_mode && !limited_mysql_mode &&
table->timestamp_field == field &&
field->unireg_check != Field::TIMESTAMP_DN_FIELD)
packet->append(" on update CURRENT_TIMESTAMP",28);
if (field->unireg_check == Field::NEXT_NUMBER && !foreign_db_mode)
packet->append(" auto_increment", 15 );
if (field->comment.length)
{
packet->append(" COMMENT ",9);
append_unescaped(packet, field->comment.str, field->comment.length);
}
}
key_info= table->key_info;
file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK | HA_STATUS_TIME);
bzero((char*) &create_info, sizeof(create_info));
file->update_create_info(&create_info);
primary_key= table->primary_key;
for (uint i=0 ; i < table->keys ; i++,key_info++)
{
KEY_PART_INFO *key_part= key_info->key_part;
bool found_primary=0;
packet->append(",\n ", 4);
if (i == primary_key && !strcmp(key_info->name, primary_key_name))
{
found_primary=1;
packet->append("PRIMARY ", 8);
}
else if (key_info->flags & HA_NOSAME)
packet->append("UNIQUE ", 7);
else if (key_info->flags & HA_FULLTEXT)
packet->append("FULLTEXT ", 9);
else if (key_info->flags & HA_SPATIAL)
packet->append("SPATIAL ", 8);
packet->append("KEY ", 4);
if (!found_primary)
append_identifier(thd, packet, key_info->name, strlen(key_info->name));
if (!(thd->variables.sql_mode & MODE_NO_KEY_OPTIONS) &&
!limited_mysql_mode && !foreign_db_mode)
{
if (table->db_type == DB_TYPE_HEAP &&
key_info->algorithm == HA_KEY_ALG_BTREE)
packet->append(" TYPE BTREE", 11);
// +BAR: send USING only in non-default case: non-spatial rtree
if ((key_info->algorithm == HA_KEY_ALG_RTREE) &&
!(key_info->flags & HA_SPATIAL))
packet->append(" TYPE RTREE", 11);
}
packet->append(" (", 2);
for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
{
if (j)
packet->append(',');
if (key_part->field)
append_identifier(thd,packet,key_part->field->field_name,
strlen(key_part->field->field_name));
if (!key_part->field ||
(key_part->length !=
table->field[key_part->fieldnr-1]->key_length() &&
!(key_info->flags & HA_FULLTEXT)))
{
buff[0] = '(';
char* end=int10_to_str((long) key_part->length /
key_part->field->charset()->mbmaxlen,
buff + 1,10);
*end++ = ')';
packet->append(buff,(uint) (end-buff));
}
}
packet->append(')');
}
/*
Get possible foreign key definitions stored in InnoDB and append them
to the CREATE TABLE statement
*/
if ((for_str= file->get_foreign_key_create_info()))
{
packet->append(for_str, strlen(for_str));
file->free_foreign_key_create_info(for_str);
}
packet->append("\n)", 2);
if (!(thd->variables.sql_mode & MODE_NO_TABLE_OPTIONS) && !foreign_db_mode)
{
if (thd->variables.sql_mode & (MODE_MYSQL323 | MODE_MYSQL40))
packet->append(" TYPE=", 6);
else
packet->append(" ENGINE=", 8);
packet->append(file->table_type());
if (table->table_charset &&
!(thd->variables.sql_mode & MODE_MYSQL323) &&
!(thd->variables.sql_mode & MODE_MYSQL40))
{
packet->append(" DEFAULT CHARSET=", 17);
packet->append(table->table_charset->csname);
if (!(table->table_charset->state & MY_CS_PRIMARY))
{
packet->append(" COLLATE=", 9);
packet->append(table->table_charset->name);
}
}
if (table->min_rows)
{
packet->append(" MIN_ROWS=", 10);
end= longlong10_to_str(table->min_rows, buff, 10);
packet->append(buff, (uint) (end- buff));
}
if (table->max_rows)
{
packet->append(" MAX_ROWS=", 10);
end= longlong10_to_str(table->max_rows, buff, 10);
packet->append(buff, (uint) (end - buff));
}
if (table->avg_row_length)
{
packet->append(" AVG_ROW_LENGTH=", 16);
end= longlong10_to_str(table->avg_row_length, buff,10);
packet->append(buff, (uint) (end - buff));
}
if (table->db_create_options & HA_OPTION_PACK_KEYS)
packet->append(" PACK_KEYS=1", 12);
if (table->db_create_options & HA_OPTION_NO_PACK_KEYS)
packet->append(" PACK_KEYS=0", 12);
if (table->db_create_options & HA_OPTION_CHECKSUM)
packet->append(" CHECKSUM=1", 11);
if (table->db_create_options & HA_OPTION_DELAY_KEY_WRITE)
packet->append(" DELAY_KEY_WRITE=1",18);
if (table->row_type != ROW_TYPE_DEFAULT)
{
packet->append(" ROW_FORMAT=",12);
packet->append(ha_row_type[(uint) table->row_type]);
}
table->file->append_create_info(packet);
if (table->comment && table->comment[0])
{
packet->append(" COMMENT=", 9);
append_unescaped(packet, table->comment, strlen(table->comment));
}
if (file->raid_type)
{
uint length;
length= my_snprintf(buff,sizeof(buff),
" RAID_TYPE=%s RAID_CHUNKS=%d RAID_CHUNKSIZE=%ld",
my_raid_type(file->raid_type), file->raid_chunks,
file->raid_chunksize/RAID_BLOCK_SIZE);
packet->append(buff, length);
}
append_directory(thd, packet, "DATA", create_info.data_file_name);
append_directory(thd, packet, "INDEX", create_info.index_file_name);
}
DBUG_RETURN(0);
}
/****************************************************************************
Return info about all processes
returns for each thread: thread id, user, host, db, command, info
****************************************************************************/
class thread_info :public ilink {
public:
static void *operator new(size_t size) {return (void*) sql_alloc((uint) size); }
static void operator delete(void *ptr __attribute__((unused)),
size_t size __attribute__((unused))) {} /*lint -e715 */
ulong thread_id;
time_t start_time;
uint command;
const char *user,*host,*db,*proc_info,*state_info;
char *query;
};
#ifdef __GNUC__
template class I_List<thread_info>;
#endif
void mysqld_list_processes(THD *thd,const char *user, bool verbose)
{
Item *field;
List<Item> field_list;
I_List<thread_info> thread_infos;
ulong max_query_length= (verbose ? thd->variables.max_allowed_packet :
PROCESS_LIST_WIDTH);
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_list_processes");
field_list.push_back(new Item_int("Id",0,11));
field_list.push_back(new Item_empty_string("User",16));
field_list.push_back(new Item_empty_string("Host",LIST_PROCESS_HOST_LEN));
field_list.push_back(field=new Item_empty_string("db",NAME_LEN));
field->maybe_null=1;
field_list.push_back(new Item_empty_string("Command",16));
field_list.push_back(new Item_return_int("Time",7, FIELD_TYPE_LONG));
field_list.push_back(field=new Item_empty_string("State",30));
field->maybe_null=1;
field_list.push_back(field=new Item_empty_string("Info",max_query_length));
field->maybe_null=1;
if (protocol->send_fields(&field_list,1))
DBUG_VOID_RETURN;
VOID(pthread_mutex_lock(&LOCK_thread_count)); // For unlink from list
if (!thd->killed)
{
I_List_iterator<THD> it(threads);
THD *tmp;
while ((tmp=it++))
{
struct st_my_thread_var *mysys_var;
if ((tmp->vio_ok() || tmp->system_thread) &&
(!user || (tmp->user && !strcmp(tmp->user,user))))
{
thread_info *thd_info=new thread_info;
thd_info->thread_id=tmp->thread_id;
thd_info->user=thd->strdup(tmp->user ? tmp->user :
(tmp->system_thread ?
"system user" : "unauthenticated user"));
if (tmp->peer_port && (tmp->host || tmp->ip) && thd->host_or_ip[0])
{
if ((thd_info->host= thd->alloc(LIST_PROCESS_HOST_LEN+1)))
my_snprintf((char *) thd_info->host, LIST_PROCESS_HOST_LEN,
"%s:%u", tmp->host_or_ip, tmp->peer_port);
}
else
thd_info->host= thd->strdup(tmp->host_or_ip);
if ((thd_info->db=tmp->db)) // Safe test
thd_info->db=thd->strdup(thd_info->db);
thd_info->command=(int) tmp->command;
if ((mysys_var= tmp->mysys_var))
pthread_mutex_lock(&mysys_var->mutex);
thd_info->proc_info= (char*) (tmp->killed ? "Killed" : 0);
#ifndef EMBEDDED_LIBRARY
thd_info->state_info= (char*) (tmp->locked ? "Locked" :
tmp->net.reading_or_writing ?
(tmp->net.reading_or_writing == 2 ?
"Writing to net" :
thd_info->command == COM_SLEEP ? "" :
"Reading from net") :
tmp->proc_info ? tmp->proc_info :
tmp->mysys_var &&
tmp->mysys_var->current_cond ?
"Waiting on cond" : NullS);
#else
thd_info->state_info= (char*)"Writing to net";
#endif
if (mysys_var)
pthread_mutex_unlock(&mysys_var->mutex);
#if !defined(DONT_USE_THR_ALARM) && ! defined(SCO)
if (pthread_kill(tmp->real_id,0))
tmp->proc_info="*** DEAD ***"; // This shouldn't happen
#endif
#ifdef EXTRA_DEBUG
thd_info->start_time= tmp->time_after_lock;
#else
thd_info->start_time= tmp->start_time;
#endif
thd_info->query=0;
if (tmp->query)
{
/*
query_length is always set to 0 when we set query = NULL; see
the comment in sql_class.h why this prevents crashes in possible
races with query_length
*/
uint length= min(max_query_length, tmp->query_length);
thd_info->query=(char*) thd->strmake(tmp->query,length);
}
thread_infos.append(thd_info);
}
}
}
VOID(pthread_mutex_unlock(&LOCK_thread_count));
thread_info *thd_info;
time_t now= time(0);
while ((thd_info=thread_infos.get()))
{
protocol->prepare_for_resend();
protocol->store((ulonglong) thd_info->thread_id);
protocol->store(thd_info->user, system_charset_info);
protocol->store(thd_info->host, system_charset_info);
protocol->store(thd_info->db, system_charset_info);
if (thd_info->proc_info)
protocol->store(thd_info->proc_info, system_charset_info);
else
protocol->store(command_name[thd_info->command], system_charset_info);
if (thd_info->start_time)
protocol->store((uint32) (now - thd_info->start_time));
else
protocol->store_null();
protocol->store(thd_info->state_info, system_charset_info);
protocol->store(thd_info->query, system_charset_info);
if (protocol->write())
break; /* purecov: inspected */
}
send_eof(thd);
DBUG_VOID_RETURN;
}
/*****************************************************************************
Status functions
*****************************************************************************/
static bool write_collation(Protocol *protocol, CHARSET_INFO *cs)
{
protocol->prepare_for_resend();
protocol->store(cs->name, system_charset_info);
protocol->store(cs->csname, system_charset_info);
protocol->store_short((longlong) cs->number);
protocol->store((cs->state & MY_CS_PRIMARY) ? "Yes" : "",system_charset_info);
protocol->store((cs->state & MY_CS_COMPILED)? "Yes" : "",system_charset_info);
protocol->store_short((longlong) cs->strxfrm_multiply);
return protocol->write();
}
int mysqld_show_collations(THD *thd, const char *wild)
{
char buff[8192];
String packet2(buff,sizeof(buff),thd->charset());
List<Item> field_list;
CHARSET_INFO **cs;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_charsets");
field_list.push_back(new Item_empty_string("Collation",30));
field_list.push_back(new Item_empty_string("Charset",30));
field_list.push_back(new Item_return_int("Id",11, FIELD_TYPE_SHORT));
field_list.push_back(new Item_empty_string("Default",30));
field_list.push_back(new Item_empty_string("Compiled",30));
field_list.push_back(new Item_return_int("Sortlen",3, FIELD_TYPE_SHORT));
if (protocol->send_fields(&field_list, 1))
DBUG_RETURN(1);
for ( cs= all_charsets ; cs < all_charsets+255 ; cs++ )
{
CHARSET_INFO **cl;
if (!cs[0] || !(cs[0]->state & MY_CS_AVAILABLE) ||
!(cs[0]->state & MY_CS_PRIMARY))
continue;
for ( cl= all_charsets; cl < all_charsets+255 ;cl ++)
{
if (!cl[0] || !(cl[0]->state & MY_CS_AVAILABLE) ||
!my_charset_same(cs[0],cl[0]))
continue;
if (!(wild && wild[0] &&
wild_case_compare(system_charset_info,cl[0]->name,wild)))
{
if (write_collation(protocol, cl[0]))
goto err;
}
}
}
send_eof(thd);
DBUG_RETURN(0);
err:
DBUG_RETURN(1);
}
static bool write_charset(Protocol *protocol, CHARSET_INFO *cs)
{
protocol->prepare_for_resend();
protocol->store(cs->csname, system_charset_info);
protocol->store(cs->comment ? cs->comment : "", system_charset_info);
protocol->store(cs->name, system_charset_info);
protocol->store_short((longlong) cs->mbmaxlen);
return protocol->write();
}
int mysqld_show_charsets(THD *thd, const char *wild)
{
char buff[8192];
String packet2(buff,sizeof(buff),thd->charset());
List<Item> field_list;
CHARSET_INFO **cs;
Protocol *protocol= thd->protocol;
DBUG_ENTER("mysqld_show_charsets");
field_list.push_back(new Item_empty_string("Charset",30));
field_list.push_back(new Item_empty_string("Description",60));
field_list.push_back(new Item_empty_string("Default collation",60));
field_list.push_back(new Item_return_int("Maxlen",3, FIELD_TYPE_SHORT));
if (protocol->send_fields(&field_list, 1))
DBUG_RETURN(1);
for ( cs= all_charsets ; cs < all_charsets+255 ; cs++ )
{
if (cs[0] && (cs[0]->state & MY_CS_PRIMARY) &&
(cs[0]->state & MY_CS_AVAILABLE) &&
!(wild && wild[0] &&
wild_case_compare(system_charset_info,cs[0]->csname,wild)))
{
if (write_charset(protocol, cs[0]))
goto err;
}
}
send_eof(thd);
DBUG_RETURN(0);
err:
DBUG_RETURN(1);
}
int mysqld_show(THD *thd, const char *wild, show_var_st *variables,
enum enum_var_type value_type,
pthread_mutex_t *mutex)
{
char buff[1024];
List<Item> field_list;
Protocol *protocol= thd->protocol;
LEX_STRING null_lex_str;
DBUG_ENTER("mysqld_show");
field_list.push_back(new Item_empty_string("Variable_name",30));
field_list.push_back(new Item_empty_string("Value",256));
if (protocol->send_fields(&field_list,1))
DBUG_RETURN(1); /* purecov: inspected */
null_lex_str.str= 0; // For sys_var->value_ptr()
null_lex_str.length= 0;
pthread_mutex_lock(mutex);
for (; variables->name; variables++)
{
if (!(wild && wild[0] && wild_case_compare(system_charset_info,
variables->name,wild)))
{
protocol->prepare_for_resend();
protocol->store(variables->name, system_charset_info);
SHOW_TYPE show_type=variables->type;
char *value=variables->value;
const char *pos, *end;
long nr;
if (show_type == SHOW_SYS)
{
show_type= ((sys_var*) value)->type();
value= (char*) ((sys_var*) value)->value_ptr(thd, value_type,
&null_lex_str);
}
pos= end= buff;
switch (show_type) {
case SHOW_LONG:
case SHOW_LONG_CONST:
end= int10_to_str(*(long*) value, buff, 10);
break;
case SHOW_LONGLONG:
end= longlong10_to_str(*(longlong*) value, buff, 10);
break;
case SHOW_HA_ROWS:
end= longlong10_to_str((longlong) *(ha_rows*) value, buff, 10);
break;
case SHOW_BOOL:
end= strmov(buff, *(bool*) value ? "ON" : "OFF");
break;
case SHOW_MY_BOOL:
end= strmov(buff, *(my_bool*) value ? "ON" : "OFF");
break;
case SHOW_INT_CONST:
case SHOW_INT:
end= int10_to_str((long) *(uint32*) value, buff, 10);
break;
case SHOW_HAVE:
{
SHOW_COMP_OPTION tmp= *(SHOW_COMP_OPTION*) value;
pos= show_comp_option_name[(int) tmp];
end= strend(pos);
break;
}
case SHOW_CHAR:
{
if (!(pos= value))
pos= "";
end= strend(pos);
break;
}
case SHOW_STARTTIME:
nr= (long) (thd->query_start() - start_time);
end= int10_to_str(nr, buff, 10);
break;
case SHOW_QUESTION:
end= int10_to_str((long) thd->query_id, buff, 10);
break;
#ifdef HAVE_REPLICATION
case SHOW_RPL_STATUS:
end= strmov(buff, rpl_status_type[(int)rpl_status]);
break;
case SHOW_SLAVE_RUNNING:
{
pthread_mutex_lock(&LOCK_active_mi);
end= strmov(buff, (active_mi->slave_running &&
active_mi->rli.slave_running) ? "ON" : "OFF");
pthread_mutex_unlock(&LOCK_active_mi);
break;
}
#endif /* HAVE_REPLICATION */
case SHOW_OPENTABLES:
end= int10_to_str((long) cached_tables(), buff, 10);
break;
case SHOW_CHAR_PTR:
{
if (!(pos= *(char**) value))
pos= "";
end= strend(pos);
break;
}
#ifdef HAVE_OPENSSL
/* First group - functions relying on CTX */
case SHOW_SSL_CTX_SESS_ACCEPT:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_accept(ssl_acceptor_fd->
ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_ACCEPT_GOOD:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_accept_good(ssl_acceptor_fd->
ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_CONNECT_GOOD:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_connect_good(ssl_acceptor_fd->
ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_ACCEPT_RENEGOTIATE:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_CONNECT_RENEGOTIATE:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd-> ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_CB_HITS:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_cb_hits(ssl_acceptor_fd->
ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_HITS:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_hits(ssl_acceptor_fd->
ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_CACHE_FULL:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_cache_full(ssl_acceptor_fd->
ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_MISSES:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_misses(ssl_acceptor_fd->
ssl_context)),
buff, 10);
break;
case SHOW_SSL_CTX_SESS_TIMEOUTS:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context)),
buff,10);
break;
case SHOW_SSL_CTX_SESS_NUMBER:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context)),
buff,10);
break;
case SHOW_SSL_CTX_SESS_CONNECT:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context)),
buff,10);
break;
case SHOW_SSL_CTX_SESS_GET_CACHE_SIZE:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context)),
buff,10);
break;
case SHOW_SSL_CTX_GET_VERIFY_MODE:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context)),
buff,10);
break;
case SHOW_SSL_CTX_GET_VERIFY_DEPTH:
end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context)),
buff,10);
break;
case SHOW_SSL_CTX_GET_SESSION_CACHE_MODE:
if (!ssl_acceptor_fd)
{
pos= "NONE";
end= pos+4;
break;
}
switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context))
{
case SSL_SESS_CACHE_OFF:
pos= "OFF";
break;
case SSL_SESS_CACHE_CLIENT:
pos= "CLIENT";
break;
case SSL_SESS_CACHE_SERVER:
pos= "SERVER";
break;
case SSL_SESS_CACHE_BOTH:
pos= "BOTH";
break;
case SSL_SESS_CACHE_NO_AUTO_CLEAR:
pos= "NO_AUTO_CLEAR";
break;
case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP:
pos= "NO_INTERNAL_LOOKUP";
break;
default:
pos= "Unknown";
break;
}
end= strend(pos);
break;
/* First group - functions relying on SSL */
case SHOW_SSL_GET_VERSION:
pos= (thd->net.vio->ssl_arg ?
SSL_get_version((SSL*) thd->net.vio->ssl_arg) : "");
end= strend(pos);
break;
case SHOW_SSL_SESSION_REUSED:
end= int10_to_str((long) (thd->net.vio->ssl_arg ?
SSL_session_reused((SSL*) thd->net.vio->
ssl_arg) :
0),
buff, 10);
break;
case SHOW_SSL_GET_DEFAULT_TIMEOUT:
end= int10_to_str((long) (thd->net.vio->ssl_arg ?
SSL_get_default_timeout((SSL*) thd->net.vio->
ssl_arg) :
0),
buff, 10);
break;
case SHOW_SSL_GET_VERIFY_MODE:
end= int10_to_str((long) (thd->net.vio->ssl_arg ?
SSL_get_verify_mode((SSL*) thd->net.vio->
ssl_arg):
0),
buff, 10);
break;
case SHOW_SSL_GET_VERIFY_DEPTH:
end= int10_to_str((long) (thd->net.vio->ssl_arg ?
SSL_get_verify_depth((SSL*) thd->net.vio->
ssl_arg):
0),
buff, 10);
break;
case SHOW_SSL_GET_CIPHER:
pos= (thd->net.vio->ssl_arg ?
SSL_get_cipher((SSL*) thd->net.vio->ssl_arg) : "" );
end= strend(pos);
break;
case SHOW_SSL_GET_CIPHER_LIST:
if (thd->net.vio->ssl_arg)
{
char *to= buff;
for (int i=0 ; i++ ;)
{
const char *p= SSL_get_cipher_list((SSL*) thd->net.vio->ssl_arg,i);
if (p == NULL)
break;
to= strmov(to, p);
*to++= ':';
}
if (to != buff)
to--; // Remove last ':'
end= to;
}
break;
#endif /* HAVE_OPENSSL */
case SHOW_KEY_CACHE_LONG:
case SHOW_KEY_CACHE_CONST_LONG:
value= (value-(char*) &dflt_key_cache_var)+ (char*) sql_key_cache;
end= int10_to_str(*(long*) value, buff, 10);
break;
case SHOW_UNDEF: // Show never happen
case SHOW_SYS:
break; // Return empty string
default:
break;
}
if (protocol->store(pos, (uint32) (end - pos), system_charset_info) ||
protocol->write())
goto err; /* purecov: inspected */
}
}
pthread_mutex_unlock(mutex);
send_eof(thd);
DBUG_RETURN(0);
err:
pthread_mutex_unlock(mutex);
DBUG_RETURN(1);
}
#ifdef __GNUC__
template class List_iterator_fast<char>;
template class List<char>;
#endif
View Git Blame Copy Permalink