language/duchain/safetycounter.h

   1
   2 /***************************************************************************
   3    Copyright 2006 David Nolden <david.nolden.kdevelop@art-master.de>
   4 ***************************************************************************/
   5
   6 /***************************************************************************
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  ***************************************************************************/
  14
  15 #ifndef __SAFETYCOUNTER_H__
  16 #define __SAFETYCOUNTER_H__
  17
  18 #include <kdebug.h>
  19
  20 struct SafetyCounter {
  21   int safetyCounter;
  22   const int maxSafetyCounter;
  23
  24   SafetyCounter( int max = 40000 ) : safetyCounter(0), maxSafetyCounter(max) {
  25   }
  26
  27   void init() {
  28     safetyCounter = 0;
  29   }
  30
  31   SafetyCounter& operator ++() {
  32     safetyCounter++;
  33     return *this;
  34   }
  35
  36   ///Returns whether the counter is ok, but without increasing it
  37   bool ok() const {
  38     return safetyCounter < maxSafetyCounter;
  39   }
  40
  41   operator bool() {
  42     safetyCounter++;
  43     bool ret = safetyCounter < maxSafetyCounter;
  44           if( !ret ) {
  45                         if( safetyCounter == maxSafetyCounter ) {
  46 #ifdef DEPTHBACKTRACE
  47         kDebug( 9007) << "WARNING: Safety-counter reached count > " << maxSafetyCounter << ", operation stopped";
  48 #endif
  49                         kDebug( 9007 ) << endl << kBacktrace();
  50                         }
  51           }
  52
  53     return ret;
  54   }
  55
  56 };
  57
  58 #endif