include/Debug.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by www.databasecache.com                           *
   3  *   Contact: praba_tuty@databasecache.com                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15   ***************************************************************************/
  16 #ifndef DEBUG_H
  17 #define DEBUG_H
  18 #include<ErrorType.h>
  19 #define DEBUG 1
  20 extern int DebugDM_Alloc;
  21 extern int DebugDM_VarAlloc;
  22 extern int DebugDM_Lock;
  23 extern int DebugDM_Transaction;
  24 extern int DebugDM_UndoLog;
  25 extern int DebugDM_RedoLog;
  26 extern int DebugDM_Index;
  27 extern int DebugDM_HashIndex;
  28 extern int DebugDM_SystemDatabase;
  29 extern int DebugDM_Database;
  30 extern int DebugDM_Table;
  31 extern int DebugDM_Predicate;
  32 extern int DebugDM_Iterator;
  33 extern int DebugDM_Process;
  34
  35
  36 extern int printError1(DbRetVal val, char* fname, int lno, char *format, ...);
  37
  38 #define printError(a, ...) printError1(a, __FILE__, __LINE__, __VA_ARGS__)
  39
  40 enum DebugModule
  41 {
  42     DM_Alloc = 0,
  43     DM_VarAlloc,
  44     DM_Lock,
  45     DM_Transaction,
  46     DM_UndoLog,
  47     DM_RedoLog,
  48     DM_Index,
  49     DM_HashIndex,
  50     DM_SystemDatabase,
  51     DM_Database,
  52     DM_Table,
  53     DM_Predicate,
  54     DM_Iterator,
  55     DM_Process
  56 };
  57 static char moduleNames[][20] =
  58 {
  59     "Alloc", "VariableAlloc", "Lock", "Trans", "UndoLog", "RedoLog", "Index",
  60     "HashIndex", "SysDb", "Db", "Table", "Predicate", "Iter", "Procmgmt"
  61 };
  62
  63 extern int printDebug1(int module, char *fname, int lineno, char *format, ...);
  64
  65
  66 #ifdef DEBUG
  67 #define printDebug(a, ...) printDebug1(a, __FILE__, __LINE__, __VA_ARGS__)
  68 #else
  69 #define printDebug(...) ;
  70 #endif
  71
  72 //Logging
  73
  74 #define MAX_TRACE_LOG_LENGTH 1024
  75
  76 enum LogLevel
  77 {
  78     LogOff = 0,
  79     LogFine,
  80     LogFiner,
  81     LogFinest
  82 };
  83
  84 static char     levelNames[][10] =
  85 {
  86      "OFF", "FINE", "FINER", "FINEST"
  87 };
  88 #include<Mutex.h>
  89 class Logger
  90 {
  91     Mutex mutex_; //guard in case of multi threaded programs
  92     int fdLog;  //file descriptor
  93     LogLevel configLevel;   //configuration file setting is cached here.
  94     public:
  95     int log(LogLevel level, char* filename, int lineNo, char *format, ...);
  96     int createLogRecord(LogLevel level, char* filename, int lineNo, char* message, char **in);
  97     DbRetVal startLogger(char *filename, bool isCreate = false);
  98     void stopLogger();
  99 };
 100
 101 //Global object
 102 static Logger logger;
 103
 104 #define logFinest(logger, ...) \
 105 {\
 106   (logger).log(LogFinest, __FILE__, __LINE__, __VA_ARGS__);\
 107 };
 108
 109 #define logFiner(logger, ...) \
 110 {\
 111   (logger).log(LogFiner, __FILE__, __LINE__, __VA_ARGS__);\
 112 };
 113
 114 #define logFine(logger, ...) \
 115 {\
 116   (logger).log(LogFine, __FILE__, __LINE__, __VA_ARGS__);\
 117 };
 118
 119
 120 #endif