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/* Copyright (C) 2004-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#ifndef INCLUDES_MYSQL_INSTANCE_MANAGER_MYSQL_CONNECTION_H
#define INCLUDES_MYSQL_INSTANCE_MANAGER_MYSQL_CONNECTION_H
#include "thread_registry.h"
#include <mysql_com.h>
#if defined(__GNUC__) && defined(USE_PRAGMA_INTERFACE)
#pragma interface
#endif
struct st_vio;
class User_map;
/*
MySQL connection - handle one connection with mysql command line client
See also comments in mysqlmanager.cc to picture general Instance Manager
architecture.
We use conventional technique to work with classes without exceptions:
class acquires all vital resource in init(); Thus if init() succeed,
a user must call cleanup(). All other methods are valid only between
init() and cleanup().
*/
class Mysql_connection: public Thread
{
public:
Mysql_connection(Thread_registry *thread_registry_arg,
User_map *user_map_arg,
struct st_vio *vio_arg,
ulong connection_id_arg);
virtual ~Mysql_connection();
protected:
virtual void run();
private:
struct st_vio *vio;
ulong connection_id;
Thread_info thread_info;
Thread_registry *thread_registry;
User_map *user_map;
NET net;
struct rand_struct rand_st;
char scramble[SCRAMBLE_LENGTH + 1];
uint status;
ulong client_capabilities;
private:
/* The main loop implementation triad */
bool init();
void main();
void cleanup();
/* Names are conventionally the same as in mysqld */
int check_connection();
int do_command();
int dispatch_command(enum enum_server_command command, const char *text);
};
#endif // INCLUDES_MYSQL_INSTANCE_MANAGER_MYSQL_CONNECTION_H
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