manes/error.cpp

   1 /* Quarn OS
   2  *
   3  * Error messages implementation
   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 #include "libs/colors.h"
  24 #include "arch/low/hlt.h"
  25 #include "error.h"
  26 #include "libs/string.h"
  27 #include "resources/keybscr.h"
  28 #include "resources/x86_keybscr.h"
  29
  30 using namespace manes;
  31
  32 p<resources::stream> error::msg_output = p<resources::stream>::invalid;
  33
  34 error::error(const string &msg) : base_err(0), er_message(msg) {
  35         if (!msg_output.valid())
  36                 msg_output = new resources::keybscr::arch_keybscr;
  37 }
  38
  39 error::error(p<error> er) : base_err(er) {
  40         if (!msg_output.valid())
  41                 msg_output = new resources::keybscr::arch_keybscr;
  42 }
  43
  44 error::error(p<error> er, const string &msg) : base_err(er), er_message(msg) {
  45         if (!msg_output.valid())
  46                 msg_output = new resources::keybscr::arch_keybscr;
  47 }
  48
  49 void error::critical() {
  50         er_print("Critical Quarn OS error has occurred!\n", color::red);
  51         for (p<error> er = this; er.valid(); er = er->base_err)
  52                 er_print(er->er_message, color::red);
  53         er_print("\nSystem is halted.", color::red);
  54
  55         halt_forever();
  56 }
  57
  58 void error::assertion() {
  59 #if DEBUG_MODE == CONF_YES
  60         er_print("Assertion failed!\n", color::yellow);
  61         for (p<error> er = this; er.valid(); er = er->base_err)
  62                 er_print(er->er_message, color::yellow);
  63         er_print("\nPress any key to continue...", color::yellow);
  64         wait_key();
  65 #endif
  66 }
  67
  68 #if DEBUG_MODE == CONF_YES
  69 extern unsigned int last_call0;
  70 extern unsigned int last_call1;
  71 #endif
  72
  73 void error::debug() {
  74 #if DEBUG_MODE == CONF_YES
  75         er_print("(", color::darkgray);
  76         for (p<error> er = this; er.valid(); er = er->base_err)
  77                 er_print(er->er_message, color::darkgray);
  78         er_print(((string)" [last call: 0x" /*+ string(last_call0,true) + ", 0x" + string(last_call1,true) +*/ + "]"),color::darkgray);
  79         er_print(")", color::darkgray);
  80         wait_key();
  81 #endif
  82 }
  83
  84 void error::er_print(const string &_message, color::color color) {
  85         if (msg_output.is<color_output>())
  86                 msg_output.cast<color_output>()->set_forecolor(color);
  87         msg_output->write(_message.to_mem());
  88         if (msg_output.is<color_output>())
  89                 msg_output.cast<color_output>()->default_color();
  90 }