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Viewing changes to plugin/innobase/usr/usr0sess.c

  • Committer: Barry.Leslie at PrimeBase
  • Date: 2010-10-20 20:41:00 UTC
  • mfrom: (1863 staging)
  • mto: This revision was merged to the branch mainline in revision 1871.
  • Revision ID: barry.leslie@primebase.com-20101020204100-oyj6p5cfssjw3p62
Merged with trunk.

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plugin/innobase/usr/usr0sess.c
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#include "trx0trx.h"
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/*********************************************************************//**
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Closes a session, freeing the memory occupied by it. */
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static
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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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Opens a session.
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@return own: session object */
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UNIV_INTERN
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/*********************************************************************//**
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Closes a session, freeing the memory occupied by it. */
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static
 
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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_ad(sess->trx == NULL);
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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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}
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/*********************************************************************//**
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Closes a session, freeing the memory occupied by it, if it is in a state
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where it should be closed.
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@return TRUE if closed */
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UNIV_INTERN
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ibool
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sess_try_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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        if (UT_LIST_GET_LEN(sess->graphs) == 0) {
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                sess_close(sess);
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                return(TRUE);
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        }
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        return(FALSE);
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}