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Diffstat (limited to 'storage/xtradb/usr/usr0sess.c')
-rw-r--r-- | storage/xtradb/usr/usr0sess.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/storage/xtradb/usr/usr0sess.c b/storage/xtradb/usr/usr0sess.c new file mode 100644 index 00000000000..8087dcb4170 --- /dev/null +++ b/storage/xtradb/usr/usr0sess.c @@ -0,0 +1,71 @@ +/***************************************************************************** + +Copyright (c) 1996, 2009, Innobase Oy. All Rights Reserved. + +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 + +*****************************************************************************/ + +/**************************************************//** +@file usr/usr0sess.c +Sessions + +Created 6/25/1996 Heikki Tuuri +*******************************************************/ + +#include "usr0sess.h" + +#ifdef UNIV_NONINL +#include "usr0sess.ic" +#endif + +#include "trx0trx.h" + +/*********************************************************************//** +Opens a session. +@return own: session object */ +UNIV_INTERN +sess_t* +sess_open(void) +/*===========*/ +{ + sess_t* sess; + + ut_ad(mutex_own(&kernel_mutex)); + + sess = mem_alloc(sizeof(sess_t)); + + sess->state = SESS_ACTIVE; + + sess->trx = trx_create(sess); + + UT_LIST_INIT(sess->graphs); + + return(sess); +} + +/*********************************************************************//** +Closes a session, freeing the memory occupied by it. */ +UNIV_INTERN +void +sess_close( +/*=======*/ + sess_t* sess) /*!< in, own: session object */ +{ + ut_ad(!mutex_own(&kernel_mutex)); + + ut_a(UT_LIST_GET_LEN(sess->graphs) == 0); + + trx_free_for_background(sess->trx); + mem_free(sess); +} |