#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 { friend class Iterator; 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(); }; 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 */