sched.h

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/*****************************************************************************************
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 $Id: sched_8h-source.html 88 2016-01-12 00:11:29Z reddawg $

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

#ifndef _SCHED_H
#define _SCHED_H

#include <ubixos/types.h>
//#include <ubixos/elf.h>
#include <ubixos/tty.h>
#include <vfs/file.h>
#include <sys/tss.h>
#include <sys/thread.h>


typedef enum { PLACEHOLDER=-2,DEAD=-1,NEW=0,READY=1,RUNNING=2,IDLE=3,FORK=4,WAIT=5 } tState;

struct osInfo {
  uInt8                 timer;
  uInt8                 v86Task;
  bool                  v86If;
  uInt32                vmStart;
  uInt32                stdinSize;
  uInt32                controlKeys;
  char                 *stdin;       
  char                  cwd[1024];          /* current working dir */
  };

typedef struct taskStruct {
  pidType            id;
  struct taskStruct *prev;
  struct taskStruct *next;
  struct tssStruct   tss;
  struct i387Struct  i387;
  struct osInfo      oInfo;
  fileDescriptor    *imageFd;
  tState             state;
  uInt32             gid;
  uInt32             uid;
  uInt16             usedMath;
  tty_term          *term;
  struct thread      td;
  } kTask_t;


int      sched_init();
int      sched_setStatus(pidType,tState);
int      sched_deleteTask(pidType);
int      sched_addDelTask(kTask_t *);
kTask_t *sched_getDelTask();
void     sched_yield();
void     sched();

void schedEndTask(pidType pid);
kTask_t *schedNewTask();
kTask_t *schedFindTask(uInt32 id);

extern kTask_t *_current;
extern kTask_t *_usedMath;


#endif

/***
 $Log: sched_8h-source.html,v $
 Revision 1.7  2006/12/15 17:47:06  reddawg
 Updates

 Revision 1.3  2006/12/15 15:43:46  reddawg
 Changes

 Revision 1.2  2006/10/27 16:42:42  reddawg
 Testing

 Revision 1.1.1.1  2006/06/01 12:46:14  reddawg
 ubix2

 Revision 1.2  2005/10/12 00:13:37  reddawg
 Removed

 Revision 1.1.1.1  2005/09/26 17:23:55  reddawg
 no message

 Revision 1.30  2004/09/11 22:21:11  reddawg
 oInfo.cwd is now an array no longer a pointer..

 Revision 1.29  2004/09/08 23:19:58  reddawg
 hmm

 Revision 1.28  2004/09/08 22:16:02  reddawg
 Fixens

 Revision 1.27  2004/09/08 21:19:32  reddawg
 All good now

 Revision 1.26  2004/09/07 21:54:38  reddawg
 ok reverted back to old scheduling for now....

 Revision 1.20  2004/08/09 12:58:05  reddawg
 let me know when you got the surce

 Revision 1.19  2004/08/06 22:43:04  reddawg
 ok

 Revision 1.18  2004/08/06 22:32:16  reddawg
 Ubix Works Again

 Revision 1.16  2004/08/04 08:17:57  reddawg
 tty: we have primative ttys try f1-f5 so it is easier to use and debug
      ubixos

 Revision 1.15  2004/07/29 21:32:16  reddawg
 My quick lunchs breaks worth of updates....

 Revision 1.14  2004/07/21 17:15:02  reddawg
 removed garbage

 Revision 1.13  2004/07/21 14:43:14  flameshadow
 add: added cwc (current working container) to the osInfo strut

 Revision 1.12  2004/07/19 02:32:21  reddawg
 sched: we now set task status to dead which then makes the scheduler do some clean it could be some minor overhead but i feel this is our most efficient approach right now to prevent corruption of the queues

 Revision 1.11  2004/07/19 02:08:27  reddawg
 Cleaned out the rest of debuging code also temporarily disabled the ip stack to improve boot time

 Revision 1.10  2004/07/18 05:24:15  reddawg
 Fixens

 Revision 1.9  2004/07/09 13:23:20  reddawg
 sched: schedInit to sched_init
 Adjusted initialization routines

 Revision 1.8  2004/06/22 14:02:14  solar
 Added the PLACEHOLDER state for a task

 Revision 1.7  2004/06/18 13:01:47  solar
 Added nice and timeSlice members to the kTask_t type

 Revision 1.6  2004/06/17 02:12:57  reddawg
 Cleaned Out Dead Code

 Revision 1.5  2004/06/16 14:04:51  reddawg
 Renamed a typedef

 Revision 1.4  2004/06/14 12:20:54  reddawg
 notes: many bugs repaired and ld works 100% now.

 Revision 1.3  2004/05/21 15:49:13  reddawg
 The os does better housekeeping now when a task is exited

 Revision 1.2  2004/05/21 15:20:00  reddawg
 Cleaned up


 END
 ***/

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