4db94043cb
Files correlati : Commento : Spostamento in libraries delle librerie esterne di Campo per una maggiore pulizia e organizzazione git-svn-id: svn://10.65.10.50/branches/R_10_00@24150 c028cbd2-c16b-5b4b-a496-9718f37d4682
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/*
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* hdbc.h
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*
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* $Id: hdbc.h 1446 1999-01-22 10:52:42Z RR $
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*
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* Data source connect object management functions
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*
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* The iODBC driver manager.
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*
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* Copyright (C) 1995 by Ke Jin <kejin@empress.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _HDBC_H
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#define _HDBC_H
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typedef struct DBC
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{
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int type; /* must be 1st field */
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struct DBC FAR *
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next;
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HENV genv; /* back point to global env object */
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HDBC dhdbc; /* driver's private dbc */
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HENV henv; /* back point to instant env object */
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HSTMT hstmt; /* list of statement object handle(s) */
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HERR herr;
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int state;
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/* options */
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UDWORD access_mode;
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UDWORD autocommit;
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UDWORD login_timeout;
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UDWORD odbc_cursors;
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UDWORD packet_size;
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UDWORD quiet_mode;
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UDWORD txn_isolation;
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SWORD cb_commit;
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SWORD cb_rollback;
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char FAR *
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current_qualifier;
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int trace; /* trace flag */
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char FAR *
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tfile;
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void FAR *
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tstm; /* trace stream */
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}
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DBC_t;
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/*
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* Note:
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* - ODBC applications can see address of driver manager's
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* connection object, i.e connection handle -- a void pointer,
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* but not detail of it. ODBC applications can neither see
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* detail driver's connection object nor its address.
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*
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* - ODBC driver manager knows its own connection objects and
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* exposes their address to an ODBC application. Driver manager
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* also knows address of driver's connection objects and keeps
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* it via dhdbc field in driver manager's connection object.
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*
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* - ODBC driver exposes address of its own connection object to
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* driver manager without detail.
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*
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* - Applications can get driver's connection object handle by
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* SQLGetInfo() with fInfoType equals to SQL_DRIVER_HDBC.
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*/
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enum
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{
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en_dbc_allocated,
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en_dbc_needdata,
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en_dbc_connected,
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en_dbc_hstmt
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};
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#endif
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