manes/error.h

   1 /* Quarn OS
   2  *
   3  * Error messages
   4  *
   5  * Copyright (C) 2008-2009 Pawel Dziepak
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  */
  22
  23 #ifndef _ERROR_H_
  24 #define _ERROR_H_
  25
  26 #include "libs/pointer.h"
  27 #include "libs/string.h"
  28 #include "libs/colors.h"
  29 #include "libs/stream.h"
  30
  31 namespace manes {
  32         class error {
  33         private:
  34                 static p<resources::stream> msg_output;
  35
  36                 p<error> base_err;
  37                 const string er_message;
  38
  39                 void er_print(const string&, color::color);
  40         public:
  41                 error(const string&);
  42                 explicit error(p<error>);
  43                 error(p<error>, const string&);
  44
  45                 void debug();
  46                 void assertion();
  47                 void critical() __attribute__((noreturn));
  48         };
  49 }
  50
  51 #define on_stack(x) ((unsigned int)(x) < 0x2fffff && (unsigned int)(x) > 0x200000)
  52
  53 static inline void critical(const string&) __attribute__((noreturn));
  54
  55 static inline void critical(const string &info) {
  56         p<manes::error> er = new manes::error(info);
  57         er->critical();
  58         while(1);
  59 }
  60
  61 static inline void debug(const string &info) {
  62         p<manes::error> er = new manes::error(info);
  63         er->debug();
  64 }
  65
  66 #define _QUOTE(x) #x
  67 #define QUOTE(x) _QUOTE(x)
  68
  69 #if DEBUG_MODE == CONF_YES
  70 #define assert(msg, cond) \
  71         if (cond) { \
  72                 p<manes::error> er = new manes::error((string)msg + " @" +  __FILE__ +  ":" +  QUOTE(__LINE__) ); \
  73                 er->assertion(); \
  74         }
  75 #else
  76 #define assert(msg, cond)
  77 #endif
  78
  79 #endif