Exemple #1
0
void init_multitasking()
{
  asm volatile("cli");

  kernel_proc = create_process("microkernel", 0, 1, 0);
  kernel_proc->pgdir = (uint32_t)system_dir;

  new_process = (uint32_t)kernel_proc;

  current_task = (uint32_t)create_task("initiating_task",tasking_initiator, 0, 0x202, kernel_proc);  //Scheduler initalization task
  old_task = current_task;

  Spurious_task = create_task("Spurious_task", Spurious_task_func, 0, 0x202, kernel_proc);
  Spurious_task->special = 1;

  Idle_task = create_task("System_idle_task",idle, 0, 0x202, kernel_proc);  //default task, this dosent run
  Idle_task->special = 1;

  Shell_proc = create_process("Shell", 0, 1, kernel_proc);
  Shell_Ostream_task = create_task("Shell_Ostream", Shell_Double_buffer, 10, 0x202, Shell_proc);
  Activate_task_direct(Shell_Ostream_task); //This is the task which would make printing to console possible!
  Shell_Istream_task = create_task("Shell_Istream", Shell_Input, 1, 0x202, Shell_proc);
  Activate_task_direct(Shell_Istream_task); //This would manage keyboard input and delivery to the required process.
  //Shell_Istream_task->special = 1;
  Shell_task = create_task("Shell_task", Shell, 5, 0x202, Shell_proc);  //Main shell task.
  //Shell_task->special = 1;
  Activate_task_direct(Shell_task);

  SAS_proc = create_process("SAS", 0, 1, kernel_proc); //Scheduler Assistance System process.
  Activate_task_direct(create_task("SAS_init", SAS_init, 1, 0x202, SAS_proc)); //Initialization of SAS system.

  reached_bottom = 0;
  Scheduler_init(); // Let the FUN Begin :D Lets Switch from the old monotasking world to Multitasking World :D defined in tasking.asm
  while(1); //Never comeback :D
}
Exemple #2
0
void init_multitasking()
{
  asm volatile("cli");
  //memset((void*)(200*1024*1024),0,(40*1024*1024));
  kernel_proc = create_process("microkernel", 0, 1, 0);

  new_process = (uint32_t)kernel_proc;

  current_task = (uint32_t)create_task("initiating_task",tasking_initiator, 20, 0x202, kernel_proc);  //Scheduler initalization task
  old_task = current_task;

  Idle_task = create_task("System_idle_task",idle, 20, 0x202, kernel_proc);  //default task
  Activate_task_direct(Idle_task);

  Activate_task_direct(create_task("idle2",idle2, 10, 0x202, kernel_proc));
  Activate_task_direct(create_task("idle3",idle3, 10, 0x202, kernel_proc));
  Activate_task_direct(create_task("idle4",idle4, 10, 0x202, kernel_proc));
  Activate_task_direct(create_task("idle5",idle5, 10, 0x202, kernel_proc));
  Activate_task_direct(create_task("idle6",idle6, 10, 0x202, kernel_proc));
  //Activate_task_direct(create_task("Main_Kernel",kernel_main, 10, 0x202, kernel_proc));

  Shell_proc = create_process("Shell", 0, 1, kernel_proc);
  Activate_task_direct(create_task("Shell_Ostream", Console_Writer, 10, 0x202, Shell_proc));
  reached_bottom = 0;
  Scheduler_init(); // Let the FUN Begin :D Lets Switch from the old monotasking world to Multitasking World :D defined in tasking.asm
}