/*****************************************************************************************
 Copyright (c) 2002-2004 The UbixOS Project
 All rights reserved.

 Redistribution and use in source and binary forms, with or without modification, are
 permitted provided that the following conditions are met:

 Redistributions of source code must retain the above copyright notice, this list of
 conditions, the following disclaimer and the list of authors.  Redistributions in binary
 form must reproduce the above copyright notice, this list of conditions, the following
 disclaimer and the list of authors in the documentation and/or other materials provided
 with the distribution. Neither the name of the UbixOS Project nor the names of its
 contributors may be used to endorse or promote products derived from this software
 without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 $Id$

*****************************************************************************************/

#include <ubixos/systemtask.h>
#include <ubixos/kpanic.h>
#include <ubixos/vitals.h>
#include <ubixos/exec.h>
#include <ubixos/tty.h>
#include <ubixos/sched.h>
#include <lib/kmalloc.h>
#include <lib/kprintf.h>
#include <lib/bioscall.h>
#include <sde/sde.h>
#include <sys/io.h>
#include <mpi/mpi.h>
#include <string.h>

void systemTask() {
  mpi_message_t myMsg;
  uInt32       counter  = 0x0;
  int          i        = 0x0;
  int          *x       = 0x0;
  kTask_t      *tmpTask = 0x0;

  if (mpi_createMbox("system") != 0x0) {
    kpanic("Error: Error creating mailbox: system\n");
    }

  while(1) {
    if (mpi_fetchMessage("system",&myMsg) == 0x0) {
      kprintf("A");
      switch(myMsg.header) {
        case 0x69:
          x = (int *)&myMsg.data;
          kprintf("Switching to term: [%i][%i]\n",*x,myMsg.pid);
          schedFindTask(myMsg.pid)->term = tty_find(*x);
          break;
        case 1000:
          kprintf("Restarting the system in 5 seconds\n");
          counter = systemVitals->sysUptime + 5;
          while (systemVitals->sysUptime < counter) {
            sched_yield();
            }
          kprintf("Rebooting NOW!!!\n");
          while(inportByte(0x64) & 0x02);
          outportByte(0x64, 0xFE);
          break;
        case 31337:
           kprintf("system: backdoor opened\n");
           break;
        case 0x80:
           if (!strcmp(myMsg.data,"sdeStart")) {
             kprintf("Starting SDE\n");
             execThread(sdeThread,(uInt32)(kmalloc(0x2000)+0x2000),0x0);
             }
           else if (!strcmp(myMsg.data,"freePage")) {
             kprintf("Free Page: %i\n",systemVitals->freePages);
             }
           else if (!strcmp(myMsg.data,"sdeStop")) {
             printOff = 0x0;
             biosCall(0x10,0x3,0x0,0x0,0x0,0x0,0x0,0x0,0x0);
             for (i=0x0;i<100;i++) asm("hlt");
             }
           break;
        default:
          kprintf("system: Received message %i:%s\n",myMsg.header,myMsg.data);
          break;
        }
      }
    tmpTask = sched_getDelTask();
    if (tmpTask != 0x0) {
      //kprintf("Deleting Task: %i\n",tmpTask->id);
      vmmFreeProcessPages(tmpTask->id);
      

      if (tmpTask->imageFd != 0x0)
        fclose(tmpTask->imageFd);

      if (tmpTask->oInfo.cwd != 0x0)
        kfree(tmpTask->oInfo.cwd);

      kfree(tmpTask);
      }
      
    sched_yield();
    }    
  
  return;
  }

/***
 $Log$
 Revision 1.22  2004/09/11 14:23:34  reddawg
 ok

 Revision 1.21  2004/09/08 23:19:58  reddawg
 hmm

 Revision 1.20  2004/09/08 22:16:02  reddawg
 Fixens

 Revision 1.19  2004/09/07 21:54:38  reddawg
 ok reverted back to old scheduling for now....

 Revision 1.18  2004/09/06 22:01:28  reddawg
 Created functions sched_addDelTask and sched_getDelTask so we can lock the delete task list to prevent corruption of pointers.... a very random case but possible none the less

 Revision 1.17  2004/09/06 21:39:21  reddawg
 Fixes: Changed the order in which tasks are deleted from the queues. Also fixed backspace to work in the virtual ttys....

 Revision 1.16  2004/08/29 21:43:06  reddawg
 sched: we now yeild almost propper
 syscall: it still uses ebx,ecx,edx

 Boys don't cry

 Revision 1.15  2004/08/26 22:51:18  reddawg
 TCA touched me :( i think he likes men....


 sched.h:        kTask_t added parentPid
 endtask.c:     fixed term back to parentPid
 exec.c:          cleaned warnings
 fork.c:            fixed term to childPid
 sched.c:         clean up for dead tasks
 systemtask.c: clean up dead tasks
 kmalloc.c:       cleaned up warnings
 udp.c:            cleaned up warnings
 bot.c:             cleaned up warnings
 shell.c:           cleaned up warnings
 tcpdump.c:     took a dump
 hd.c:             cleaned up warnings
 ubixfs.c:        stopped prning debug info

 Revision 1.14  2004/08/24 23:33:45  reddawg
 Fixed

 Revision 1.13  2004/08/24 05:24:37  reddawg
 TCA Is A BONER!!!!

 Revision 1.12  2004/08/14 11:23:02  reddawg
 Changes

 Revision 1.11  2004/08/06 22:43:04  reddawg
 ok

 Revision 1.10  2004/08/06 22:32:16  reddawg
 Ubix Works Again

 Revision 1.8  2004/07/28 17:07:25  reddawg
 MPI: moved the syscalls

 Revision 1.7  2004/07/20 22:29:55  reddawg
 assert: remade assert

 Revision 1.6  2004/06/29 11:27:30  reddawg
 sdeStop - Turn printf off until modes have changed

 Revision 1.5  2004/06/29 11:23:22  reddawg
 sdeStop - Does this patch help?

 Revision 1.4  2004/06/29 11:18:11  reddawg
 sdeStop

 Revision 1.3  2004/06/28 23:12:58  reddawg
 file format now container:/path/to/file

 Revision 1.2  2004/06/25 17:25:52  reddawg
 I am cleaning too

 Revision 1.1  2004/06/04 17:33:33  reddawg
 Changed idle task to system task

 Revision 1.9  2004/06/04 13:29:56  reddawg
 libc: modified mkdir(); interface
 kpanic: kPanic(); now says kPanic: %s
 system: now reboots when receives message for reboot
         also when command start sde is received by system the STD is started

 Revision 1.8  2004/05/26 23:48:33  reddawg
 idletask: tweaked reboot for performance

 Revision 1.7  2004/05/26 23:28:29  reddawg
 idletask: This task now also receives all of the systems message
           We also gained reboot suport that is msg send type 1000

 Revision 1.6  2004/05/25 18:42:28  reddawg
 Idle task now just does what it is suposed to

 Revision 1.5  2004/05/25 17:30:16  reddawg
 IDLE task will be our toy task to test things with

 Revision 1.4  2004/05/25 15:49:03  reddawg
 Added Syscall Interface For MPI

 Revision 1.3  2004/05/21 12:36:53  reddawg
 Cleaned Up

 Revision 1.2  2004/05/15 02:30:28  reddawg
 Lots of changes

 END
 ***/