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authorAlexander Nozdrin <alik@ibmvm>2009-10-06 14:52:26 +0400
committerAlexander Nozdrin <alik@ibmvm>2009-10-06 14:52:26 +0400
commitaea063c2dcf91213cfdefa282379a2f5da943325 (patch)
treed5687e63e18e2827116349f457fa4ca31e11dc6a /server-tools/instance-manager/commands.h
parent068d170b3cf16e5b93a1f9a9b350613db427fa16 (diff)
downloadmariadb-git-aea063c2dcf91213cfdefa282379a2f5da943325.tar.gz
Backport WL#4085: Merge revno:2476.1105.1 from 6.0.
Diffstat (limited to 'server-tools/instance-manager/commands.h')
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1 files changed, 0 insertions, 393 deletions
diff --git a/server-tools/instance-manager/commands.h b/server-tools/instance-manager/commands.h
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-#ifndef INCLUDES_MYSQL_INSTANCE_MANAGER_COMMANDS_H
-#define INCLUDES_MYSQL_INSTANCE_MANAGER_COMMANDS_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; version 2 of the License.
-
- 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 <m_string.h>
-#include <hash.h>
-
-#include "command.h"
-#include "instance.h"
-#include "parse.h"
-
-#if defined(__GNUC__) && defined(USE_PRAGMA_INTERFACE)
-#pragma interface
-#endif
-
-
-/**
- Print all instances of this instance manager.
- Grammar: SHOW INSTANCES
-*/
-
-class Show_instances: public Command
-{
-public:
- Show_instances()
- { }
-
-public:
- int execute(st_net *net, ulong connection_id);
-
-private:
- int write_header(st_net *net);
- int write_data(st_net *net);
-};
-
-
-/**
- Reread configuration file and refresh internal cache.
- Grammar: FLUSH INSTANCES
-*/
-
-class Flush_instances: public Command
-{
-public:
- Flush_instances()
- { }
-
-public:
- int execute(st_net *net, ulong connection_id);
-};
-
-
-/**
- Base class for Instance-specific commands
- (commands that operate on one instance).
-
- Instance_cmd extends Command class by:
- - an attribute for storing instance name;
- - code to initialize instance name in constructor;
- - an accessor to get instance name.
-*/
-
-class Instance_cmd : public Command
-{
-public:
- Instance_cmd(const LEX_STRING *instance_name_arg);
-
-protected:
- inline const LEX_STRING *get_instance_name() const
- {
- return instance_name.get_str();
- }
-
-private:
- Instance_name instance_name;
-};
-
-
-/**
- Abstract class for Instance-specific commands.
-
- Abstract_instance_cmd extends Instance_cmd by providing a common
- framework for writing command-implementations. Basically, the class
- implements Command::execute() pure virtual function in the following
- way:
- - Lock Instance_map;
- - Get an instance by name. Return an error, if there is no such
- instance;
- - Lock the instance;
- - Unlock Instance_map;
- - Call execute_impl(), which should be implemented in derived class;
- - Unlock the instance;
- - Send response to the client and return error status.
-*/
-
-class Abstract_instance_cmd: public Instance_cmd
-{
-public:
- Abstract_instance_cmd(const LEX_STRING *instance_name_arg);
-
-public:
- virtual int execute(st_net *net, ulong connection_id);
-
-protected:
- /**
- This operation is intended to contain command-specific implementation.
-
- MT-NOTE: this operation is called under acquired Instance's lock.
- */
- virtual int execute_impl(st_net *net, Instance *instance) = 0;
-
- /**
- This operation is invoked on successful return of execute_impl() and is
- intended to send closing data.
-
- MT-NOTE: this operation is called under released Instance's lock.
- */
- virtual int send_ok_response(st_net *net, ulong connection_id) = 0;
-};
-
-
-/**
- Print status of an instance.
- Grammar: SHOW INSTANCE STATUS <instance_name>
-*/
-
-class Show_instance_status: public Abstract_instance_cmd
-{
-public:
- Show_instance_status(const LEX_STRING *instance_name_arg);
-
-protected:
- virtual int execute_impl(st_net *net, Instance *instance);
- virtual int send_ok_response(st_net *net, ulong connection_id);
-
-private:
- int write_header(st_net *net);
- int write_data(st_net *net, Instance *instance);
-};
-
-
-/**
- Print options of chosen instance.
- Grammar: SHOW INSTANCE OPTIONS <instance_name>
-*/
-
-class Show_instance_options: public Abstract_instance_cmd
-{
-public:
- Show_instance_options(const LEX_STRING *instance_name_arg);
-
-protected:
- virtual int execute_impl(st_net *net, Instance *instance);
- virtual int send_ok_response(st_net *net, ulong connection_id);
-
-private:
- int write_header(st_net *net);
- int write_data(st_net *net, Instance *instance);
-};
-
-
-/**
- Start an instance.
- Grammar: START INSTANCE <instance_name>
-*/
-
-class Start_instance: public Abstract_instance_cmd
-{
-public:
- Start_instance(const LEX_STRING *instance_name_arg);
-
-protected:
- virtual int execute_impl(st_net *net, Instance *instance);
- virtual int send_ok_response(st_net *net, ulong connection_id);
-};
-
-
-/**
- Stop an instance.
- Grammar: STOP INSTANCE <instance_name>
-*/
-
-class Stop_instance: public Abstract_instance_cmd
-{
-public:
- Stop_instance(const LEX_STRING *instance_name_arg);
-
-protected:
- virtual int execute_impl(st_net *net, Instance *instance);
- virtual int send_ok_response(st_net *net, ulong connection_id);
-};
-
-
-/**
- Create an instance.
- Grammar: CREATE INSTANCE <instance_name> [<options>]
-*/
-
-class Create_instance: public Instance_cmd
-{
-public:
- Create_instance(const LEX_STRING *instance_name_arg);
-
-public:
- bool init(const char **text);
-
-protected:
- virtual int execute(st_net *net, ulong connection_id);
-
-private:
- bool parse_args(const char **text);
-
-private:
- Named_value_arr options;
-};
-
-
-/**
- Drop an instance.
- Grammar: DROP INSTANCE <instance_name>
-
- Operation is permitted only if the instance is stopped. On successful
- completion the instance section is removed from config file and the instance
- is removed from the instance map.
-*/
-
-class Drop_instance: public Instance_cmd
-{
-public:
- Drop_instance(const LEX_STRING *instance_name_arg);
-
-protected:
- virtual int execute(st_net *net, ulong connection_id);
-};
-
-
-/**
- Print requested part of the log.
- Grammar:
- SHOW <instance_name> LOG {ERROR | SLOW | GENERAL} size[, offset_from_end]
-*/
-
-class Show_instance_log: public Abstract_instance_cmd
-{
-public:
- Show_instance_log(const LEX_STRING *instance_name_arg,
- Log_type log_type_arg, uint size_arg, uint offset_arg);
-
-protected:
- virtual int execute_impl(st_net *net, Instance *instance);
- virtual int send_ok_response(st_net *net, ulong connection_id);
-
-private:
- int check_params(Instance *instance);
- int write_header(st_net *net);
- int write_data(st_net *net, Instance *instance);
-
-private:
- Log_type log_type;
- uint size;
- uint offset;
-};
-
-
-/**
- Shows the list of the log files, used by an instance.
- Grammar: SHOW <instance_name> LOG FILES
-*/
-
-class Show_instance_log_files: public Abstract_instance_cmd
-{
-public:
- Show_instance_log_files(const LEX_STRING *instance_name_arg);
-
-protected:
- virtual int execute_impl(st_net *net, Instance *instance);
- virtual int send_ok_response(st_net *net, ulong connection_id);
-
-private:
- int write_header(st_net *net);
- int write_data(st_net *net, Instance *instance);
-};
-
-
-/**
- Abstract class for option-management commands.
-*/
-
-class Instance_options_list;
-
-class Abstract_option_cmd: public Command
-{
-public:
- ~Abstract_option_cmd();
-
-public:
- bool add_option(const LEX_STRING *instance_name, Named_value *option);
-
-public:
- bool init(const char **text);
-
- virtual int execute(st_net *net, ulong connection_id);
-
-protected:
- Abstract_option_cmd();
-
- int correct_file(Instance *instance, Named_value *option, bool skip);
-
-protected:
- virtual bool parse_args(const char **text) = 0;
- virtual int process_option(Instance *instance, Named_value *option) = 0;
-
-private:
- Instance_options_list *
- get_instance_options_list(const LEX_STRING *instance_name);
-
- int execute_impl(st_net *net, ulong connection_id);
-
-private:
- HASH instance_options_map;
- bool initialized;
-};
-
-
-/**
- Set an option for the instance.
- Grammar: SET instance_name.option[=option_value][, ...]
-*/
-
-class Set_option: public Abstract_option_cmd
-{
-public:
- Set_option()
- { }
-
-protected:
- virtual bool parse_args(const char **text);
- virtual int process_option(Instance *instance, Named_value *option);
-};
-
-
-/**
- Remove option of the instance.
- Grammar: UNSET instance_name.option[, ...]
-*/
-
-class Unset_option: public Abstract_option_cmd
-{
-public:
- Unset_option()
- { }
-
-protected:
- virtual bool parse_args(const char **text);
- virtual int process_option(Instance *instance, Named_value *option);
-};
-
-
-/**
- Syntax error command.
-
- This command is issued if parser reported a syntax error. We need it to
- distinguish between syntax error and internal parser error. E.g. parsing
- failed because we hadn't had enought memory. In the latter case the parser
- just returns NULL.
-*/
-
-class Syntax_error: public Command
-{
-public:
- Syntax_error()
- { }
-
-public:
- int execute(st_net *net, ulong connection_id);
-};
-
-#endif /* INCLUDES_MYSQL_INSTANCE_MANAGER_COMMANDS_H */