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76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*****************************************************************************
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Copyright (c) 1996, 2009, Innobase Oy. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/usr0sess.h
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Sessions
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Created 6/25/1996 Heikki Tuuri
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*******************************************************/
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#ifndef usr0sess_h
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#define usr0sess_h
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#include "univ.i"
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#include "ut0byte.h"
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#include "trx0types.h"
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#include "srv0srv.h"
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#include "trx0types.h"
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#include "usr0types.h"
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#include "que0types.h"
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#include "data0data.h"
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#include "rem0rec.h"
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/*********************************************************************//**
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Opens a session.
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@return own: session object */
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UNIV_INTERN
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sess_t*
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sess_open(void);
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/*============*/
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/*********************************************************************//**
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Closes a session, freeing the memory occupied by it. */
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UNIV_INTERN
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void
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sess_close(
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/*=======*/
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sess_t* sess); /* in, own: session object */
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/* The session handle. All fields are protected by the kernel mutex */
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struct sess_struct{
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ulint state; /*!< state of the session */
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trx_t* trx; /*!< transaction object permanently
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assigned for the session: the
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transaction instance designated by the
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trx id changes, but the memory
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structure is preserved */
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UT_LIST_BASE_NODE_T(que_t)
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graphs; /*!< query graphs belonging to this
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session */
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};
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/* Session states */
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#define SESS_ACTIVE 1
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#define SESS_ERROR 2 /* session contains an error message
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which has not yet been communicated
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to the client */
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#ifndef UNIV_NONINL
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#include "usr0sess.ic"
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#endif
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#endif
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