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#ifndef INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_MAP_H
#define INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_MAP_H
/* Copyright (C) 2004 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 */
#include <my_global.h>
#include <my_sys.h>
#include <hash.h>
#ifdef __GNUC__
#pragma interface
#endif
#include "protocol.h"
#include "guardian.h"
class Instance;
extern int load_all_groups(char ***groups, const char *filename);
extern void free_groups(char **groups);
/*
Instance_map - stores all existing instances
*/
class Instance_map
{
public:
/* Instance_map iterator */
class Iterator
{
private:
uint current_instance;
Instance_map *instance_map;
public:
Iterator(Instance_map *instance_map_arg) :
current_instance(0), instance_map(instance_map_arg)
{}
void go_to_first();
Instance *next();
};
friend class Iterator;
public:
/* returns a pointer to the instance or NULL, if there is no such instance */
Instance *find(const char *name, uint name_len);
Instance *find(uint instance_number);
int flush_instances();
int cleanup();
int lock();
int unlock();
int init();
Instance_map(const char *default_mysqld_path_arg,
const char *default_admin_user_arg,
const char *default_admin_password_arg);
~Instance_map();
/* loads options from config files */
int load();
/* adds instance to internal hash */
int add_instance(Instance *instance);
/* inits instances argv's after all options have been loaded */
void complete_initialization();
public:
const char *mysqld_path;
/* user an password to shutdown MySQL */
const char *user;
const char *password;
Guardian_thread *guardian;
private:
enum { START_HASH_SIZE = 16 };
pthread_mutex_t LOCK_instance_map;
HASH hash;
};
#endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_INSTANCE_MAP_H */
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