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a5435ea78a
tree server-tools/instance-manager/Makefile.am: Fixed IM linking to avoid using both mysys and libmysql as the define the same symbols and therefore conflict server-tools/instance-manager/listener.cc: Added ability to listen network ports server-tools/instance-manager/listener.h: Various additions to the Listener_thread_args server-tools/instance-manager/log.cc: merge server-tools/instance-manager/log.h: merge server-tools/instance-manager/manager.cc: Fixes and additions to enable guardian functionality server-tools/instance-manager/manager.h: Changed manager() signature server-tools/instance-manager/mysqlmanager.cc: Various fixes server-tools/instance-manager/options.cc: Added handling of default values for new options in the Options struct. (such as default_user, default_password, monitoring_interval e.t.c) server-tools/instance-manager/options.h: Added new options to the Options struct sql/net_serv.cc: Added MYSQL_INSTANCE_MANAGER defines to enable alarm handling in the IM server-tools/instance-manager/buffer.cc: Simple implementation of variable-length buffer server-tools/instance-manager/command.cc: Abstract command. All commands are derived from Command class server-tools/instance-manager/commands.h: Interfaces for all commands we have server-tools/instance-manager/factory.cc: Commands factory. This class hides command instantiation. The idea is to handle various protocols this way. (different commands for different protocols server-tools/instance-manager/guardian.cc: Guardian thread implementation (monitor and restart instances in case of a failure server-tools/instance-manager/guardian.h: Guardian_thread and Guardian_thread_args class interface. The Guardian_thread is responsible for monitoring and restarting instances server-tools/instance-manager/instance.cc: Instance class contains methods and data to manage a single instance server-tools/instance-manager/instance.h: This file contains class an instance class interface. The class is responsible for starting/stopping an instance server-tools/instance-manager/instance_map.cc: The instance repository. This class is also responsible for initialization of Instance class objects. server-tools/instance-manager/instance_options.cc: The Instance_options class contains all methods to get and handle options of an instance server-tools/instance-manager/mysql_connection.cc: The class responsible for handling MySQL client/server protocol connections server-tools/instance-manager/mysql_manager_error.h: The list of Instance Manger-specific errors server-tools/instance-manager/parse.cc: Simple query parser server-tools/instance-manager/parse.h: Parser interface server-tools/instance-manager/protocol.cc: Here implemented functions used to handle mysql client/server protocol server-tools/instance-manager/protocol.h: Interface for MySQL client/server protocol server-tools/instance-manager/thread_registry.cc: Thread registry stores information about every thread. It's main function is to provide graceful shutdown for all threads. server-tools/instance-manager/user_map.h: User map contains hash with user names and passwords
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
#ifndef INCLUDES_MYSQL_INSTANCE_MANAGER_GUARDIAN_H
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#define INCLUDES_MYSQL_INSTANCE_MANAGER_GUARDIAN_H
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/* Copyright (C) 2004 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include <my_global.h>
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#include <my_sys.h>
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#include <my_list.h>
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#ifdef __GNUC__
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#pragma interface
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#endif
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class Instance_map;
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#include "thread_registry.h"
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#include "instance.h"
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C_MODE_START
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pthread_handler_decl(guardian, arg);
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C_MODE_END
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struct Guardian_thread_args
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{
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Thread_registry &thread_registry;
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Instance_map *instance_map;
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uint monitoring_interval;
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Guardian_thread_args(Thread_registry &thread_registry_arg,
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Instance_map *instance_map_arg,
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uint monitoring_interval_arg) :
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thread_registry(thread_registry_arg),
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instance_map(instance_map_arg),
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monitoring_interval(monitoring_interval_arg)
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{}
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};
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/*
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The guardian thread is responsible for monitoring and restarting of guarded
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instances.
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*/
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class Guardian_thread: public Guardian_thread_args
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{
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public:
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Guardian_thread(Thread_registry &thread_registry_arg,
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Instance_map *instance_map_arg,
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uint monitoring_interval_arg);
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~Guardian_thread();
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void run();
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int init();
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int guard(const char *instance_name, uint name_len);
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int stop_guard(const char *instance_name, uint name_len);
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private:
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pthread_mutex_t LOCK_guardian;
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Thread_info thread_info;
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LIST *guarded_instances;
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MEM_ROOT alloc;
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enum { MEM_ROOT_BLOCK_SIZE= 512 };
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};
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#endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_GUARDIAN_H */
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