services/early_logger.cpp

   1 /* Quarn OS
   2  *
   3  * Early logger
   4  *
   5  * Copyright (C) 2008 Pawel Dziepak
   6  *
   7  * Implementation of a logger that can be used immediately after booting kernel.
   8  * It does not uses any high-level kernel structures and objects, so it can be
   9  * a good way to inform about their corruption. However it is not reccomended
  10  * to use it after setting up "standard" tty logger.
  11  */
  12
  13 #include "../arch/x86/console.h"
  14 #include "early_logger.h"
  15 #include "service.h"
  16 #include "service_manager.h"
  17
  18 using namespace services;
  19
  20 /* Start writting after loader's message "Booting kernel..." */
  21 early_logger::early_logger() : logger(SERVICE(early_logger)), x(17), y(0) {
  22 /*      delegate<void, const char*, logger::log_level> *m_print = new delegate<void, const char*, logger::log_level>;
  23         m_print->method(this,&early_logger::print);
  24         add_method("print",m_print);*/
  25 }
  26
  27 /* Print a log message. This logger prints everything on the screen regardless
  28  * of its level. At the stage when it is used, all information is imported.
  29  */
  30 void early_logger::print(const char *message, log_level) {
  31         /*for (int i = 0; message[i] != 0; i++) {
  32
  33                 if (message[i] == '\n') {
  34                         y++;
  35                         x = 0;
  36                 } else {
  37                         arch::screen_print(message[i],arch::scr_white,x,y);
  38                         x++;
  39                 }
  40
  41                 y += x / arch::scr_width;
  42                 x = x % arch::scr_width;
  43         }*/
  44 }
  45
  46
  47