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Viewing changes to storage/innobase/include/usr0sess.h

  • Committer: Daniel Nichter
  • Date: 2011-10-23 16:01:37 UTC
  • mto: This revision was merged to the branch mainline in revision 2448.
  • Revision ID: daniel@percona.com-20111023160137-7ac3blgz8z4tf8za
Add Administration Getting Started and Logging.  Capitalize SQL clause keywords.

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storage/innobase/include/usr0sess.h
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/******************************************************
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Sessions
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(c) 1996 Innobase Oy
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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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UNIV_INTERN
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sess_t*
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sess_open(void);
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/*============*/
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                                        /* out, own: session object */
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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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UNIV_INTERN
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ibool
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sess_try_close(
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/*===========*/
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                                /* out: TRUE if closed */
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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