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234ca309b9
server-tools/instance-manager/buffer.cc: simplified buffer interface server-tools/instance-manager/buffer.h: simplified buffer interface server-tools/instance-manager/command.cc: Command class now uses instance_map directly server-tools/instance-manager/command.h: Made Command to use instance_map directly (not through the factory, which is not needed here in fact) server-tools/instance-manager/commands.cc: Moved mysql client/server protocol-specific functions to the commands server-tools/instance-manager/commands.h: Added a comment for Syntax_error command, fixed classes to use instance map instead of the factory server-tools/instance-manager/factory.cc: Fixed factory to give appropriate class to the commands server-tools/instance-manager/guardian.cc: Fixed guardian to delay start of new instances monitoring. Moved guardian initialization to the class from Instance map. server-tools/instance-manager/guardian.h: interface fixed server-tools/instance-manager/instance.cc: added some loging server-tools/instance-manager/instance_map.cc: All non-instance map specific functions moved from the class. Added iterator for instance_map server-tools/instance-manager/instance_map.h: All non-instance map related functions moved from the class. Added iterator for instance_map. server-tools/instance-manager/listener.cc: Added FD_CLOEXEC flag to sockets, as we don't want instances to inherit them after exec. server-tools/instance-manager/manager.cc: use guardian method moved from the instance map server-tools/instance-manager/mysql_connection.cc: cleanup server-tools/instance-manager/protocol.cc: fix according to the changes in the Buffer class
86 lines
2.3 KiB
C++
86 lines
2.3 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 start();
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int guard(Instance *instance);
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int stop_guard(Instance *instance);
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private:
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int add_instance_to_list(Instance *instance, LIST **list);
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void move_to_list(LIST **from, LIST **to);
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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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LIST *starting_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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