src/iodbc/itrace.h

   1 /*
   2  *  itrace.h
   3  *
   4  *  $Id$
   5  *
   6  *  Trace functions
   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 _ITRACE_H
  27 #define _ITRACE_H
  28
  29 #ifdef  DEBUG
  30
  31 #ifndef NO_TRACE
  32 #define NO_TRACE
  33 #endif
  34
  35 #endif
  36
  37 #define TRACE_TYPE_APP2DM       1
  38 #define TRACE_TYPE_DM2DRV       2
  39 #define TRACE_TYPE_DRV2DM       3
  40
  41 #define TRACE_TYPE_RETURN       4
  42
  43 extern HPROC _iodbcdm_gettrproc (void FAR * stm, int procid, int type);
  44
  45 #ifdef NO_TRACE
  46 #define TRACE_CALL( stm, trace_on, procid, plist )
  47 #else
  48 #define TRACE_CALL( stm, trace_on, plist )\
  49         {\
  50                 if( trace_on)\
  51                 {\
  52                         HPROC   hproc;\
  53 \
  54                         hproc = _iodbcdm_gettrproc(stm, procid, TRACE_TYPE_APP2DM);\
  55 \
  56                         if( hproc )\
  57                                 hproc plist;\
  58                 }\
  59         }
  60 #endif
  61
  62 #ifdef NO_TRACE
  63 #define TRACE_DM2DRV( stm, procid, plist )
  64 #else
  65 #define TRACE_DM2DRV( stm, procid, plist )\
  66         {\
  67                 HPROC   hproc;\
  68 \
  69                 hproc = _iodbcdm_gettrproc(stm, procid, TRACE_TYPE_DM2DRV);\
  70 \
  71                 if( hproc )\
  72                         hproc plist;\
  73         }
  74 #endif
  75
  76 #ifdef NO_TRACE
  77 #define TRACE_DRV2DM( stm, procid, plist )
  78 #else
  79 #define TRACE_DRV2DM( stm, procid, plist ) \
  80         {\
  81                 HPROC   hproc;\
  82 \
  83                 hproc = _iodbcdm_gettrproc( stm, procid, TRACE_TYPE_DRV2DM);\
  84 \
  85                 if( hproc )\
  86                                 hproc plist;\
  87         }
  88 #endif
  89
  90 #ifdef NO_TRACE
  91 #define TRACE_RETURN( stm, trace_on, ret )
  92 #else
  93 #define TRACE_RETURN( stm, trace_on, ret )\
  94         {\
  95                 if( trace_on ) {\
  96                         HPROC hproc;\
  97 \
  98                         hproc = _iodbcdm_gettrproc( stm, 0, TRACE_TYPE_RETURN);\
  99 \
 100                         if( hproc )\
 101                                 hproc( stm, ret );\
 102                 }\
 103         }
 104 #endif
 105
 106 #ifdef  NO_TRACE
 107 #define CALL_DRIVER( hdbc, ret, proc, procid, plist )   { ret = proc plist; }
 108 #else
 109 #define CALL_DRIVER( hdbc, ret, proc, procid, plist )\
 110         {\
 111                 DBC_t FAR*      pdbc = (DBC_t FAR*)(hdbc);\
 112 \
 113                 if( pdbc->trace ) {\
 114                         TRACE_DM2DRV( pdbc->tstm, procid, plist )\
 115                         ret = proc plist;\
 116                         TRACE_DRV2DM( pdbc->tstm, procid, plist )\
 117                         TRACE_RETURN( pdbc->tstm, 1, ret )\
 118                 }\
 119                 else\
 120                         ret = proc plist;\
 121         }
 122 #endif
 123
 124 #endif