src/iodbc/dlproc.h

   1 /*
   2  *  dlproc.h
   3  *
   4  *  $Id$
   5  *
   6  *  Load driver and resolve driver's function entry point
   7  *
   8  *  The iODBC driver manager.
   9  *
  10  *  Copyright (C) 1995 by Ke Jin <kejin@empress.com>
  11  *
  12  *  This library is free software; you can redistribute it and/or
  13  *  modify it under the terms of the GNU Library General Public
  14  *  License as published by the Free Software Foundation; either
  15  *  version 2 of the License, or (at your option) any later version.
  16  *
  17  *  This library is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  *  Library General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU Library General Public
  23  *  License along with this library; if not, write to the Free
  24  *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  */
  26 #ifndef _DLPROC_H
  27 #define _DLPROC_H
  28
  29 #include        <dlf.h>
  30
  31 typedef RETCODE (FAR * HPROC) ();
  32
  33 #ifdef  DLDAPI_SVR4_DLFCN
  34 #include        <dlfcn.h>
  35 typedef void *HDLL;
  36 #endif
  37
  38 #ifdef DLDAPI_HP_SHL
  39 #include        <dl.h>
  40 typedef shl_t HDLL;
  41 #endif
  42
  43 #if defined(DLDAPI_AIX_LOAD) || defined(__DECCXX)
  44 typedef void *HDLL;
  45 #endif
  46
  47 extern HPROC _iodbcdm_getproc ();
  48 extern HDLL _iodbcdm_dllopen (char FAR * dll);
  49 extern HPROC _iodbcdm_dllproc (HDLL hdll, char FAR * sym);
  50 extern char FAR *_iodbcdm_dllerror ();
  51 extern int _iodbcdm_dllclose (HDLL hdll);
  52
  53 #define SQL_NULL_HDLL   ((HDLL)NULL)
  54 #define SQL_NULL_HPROC  ((HPROC)NULL)
  55 #endif