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  • Committer: Monty Taylor
  • Date: 2008-11-15 18:39:51 UTC
  • mto: (584.1.7 devel)
  • mto: This revision was merged to the branch mainline in revision 588.
  • Revision ID: monty@inaugust.com-20081115183951-jo2v3abwdu24lnwq
Split out hybrid_type_traits.

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plugin/innobase/usr/usr0sess.cc
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/*****************************************************************************
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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., 51 Franklin
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St, Fifth Floor, Boston, MA 02110-1301 USA
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*****************************************************************************/
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/**************************************************//**
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@file usr/usr0sess.c
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Sessions
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Created 6/25/1996 Heikki Tuuri
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*******************************************************/
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#include "usr0sess.h"
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#ifdef UNIV_NONINL
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#include "usr0sess.ic"
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#endif
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#include "trx0trx.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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        sess_t* sess;
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        ut_ad(mutex_own(&kernel_mutex));
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        sess = static_cast<sess_t *>(mem_alloc(sizeof(sess_t)));
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        sess->state = SESS_ACTIVE;
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        sess->trx = trx_create(sess);
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        UT_LIST_INIT(sess->graphs);
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        return(sess);
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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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{
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        ut_ad(!mutex_own(&kernel_mutex));
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        ut_a(UT_LIST_GET_LEN(sess->graphs) == 0);
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        trx_free_for_background(sess->trx);
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        mem_free(sess);
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}