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/* Copyright (C) MariaDB Corporation 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 02110-1335 USA */
/** @file user_connect.h
@brief
Declaration of the user_connect class.
@note
Author Olivier Bertrand
@see
/sql/handler.h and /storage/connect/user_connect.cc
*/
#ifdef USE_PRAGMA_INTERFACE
#pragma interface /* gcc class implementation */
#endif
/*****************************************************************************/
/* This is the global structure having all CONNECT information. */
/*****************************************************************************/
//typedef struct _global *PGLOBAL;
typedef class user_connect *PCONNECT;
typedef class ha_connect *PHC;
int connect_done_func(void *);
/*****************************************************************************/
/* The CONNECT users. There should be one by connected users. */
/*****************************************************************************/
class user_connect
{
friend class ha_connect;
friend int connect_done_func(void *);
public:
// Constructor
user_connect(THD *thd);
// Destructor
virtual ~user_connect();
// Implementation
bool user_init();
void SetHandler(ha_connect *hc);
bool CheckCleanup(bool force = false);
bool CheckQueryID(void) {return thdp->query_id > last_query_id;}
bool CheckQuery(query_id_t vid) {return last_query_id > vid;}
// Members
THD *thdp; // To the user thread
static PCONNECT to_users; // To the chain of users
PCONNECT next; // Next user in chain
PCONNECT previous; // Previous user in chain
PGLOBAL g; // The common handle to CONNECT
query_id_t last_query_id; // the latest user query id
int count; // if used by several handlers
// Statistics
ulong nrd, fnd, nfd;
ulonglong tb1;
}; // end of user_connect class definition
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