//----------------------------------------------------------------------------//
//                           GNU GPL OS/K                                     //
//                                                                            //
//  Authors:    spectral`                                                     //
//              NeoX                                                          //
//                                                                            //
//  Desc:       Scheduler header                                              //
//----------------------------------------------------------------------------//

//------------------------------------------//
//              Dependencies                //
//------------------------------------------//

#ifndef _KALKERN_BASE_H
#include "kernbase.h"
#endif

#ifndef _KALLIST_H
#include <common/kallist.h>
#endif

//------------------------------------------//
//             Start of header              //
//------------------------------------------//

#ifndef _KALKERN_SCHED_H
#define _KALKERN_SCHED_H

//------------------------------------------//
//               Preprocessor               //
//------------------------------------------//

#define printdbg printf
#define _STR(x) #x
#define _XSTR(x) _STR(x)

//
// States for a process
//
#define STATE_RUNNING  0
#define STATE_RUNNABLE 1
#define STATE_BLOCKED  2

//
// Time in ticks a process should be run
//
#define DEF_PROC_TSLICE     5       // 20 ticks
#define TCR_PROC_TSLICE     20000   // 20000 ticks (time critical)

//------------------------------------------//
//               List heads                 //
//------------------------------------------//

DECLARE_PER_CPU(IdlePrioProcs, ListHead_t *);
DECLARE_PER_CPU(ReglPrioProcs, ListHead_t *);
DECLARE_PER_CPU(ServPrioProcs, ListHead_t *);
DECLARE_PER_CPU(TimeCritProcs, ListHead_t *);

//------------------------------------------//
//               Data types                 //
//------------------------------------------//

//
// A process
//
typedef struct sProcess_t{

    // Identifier
    int         pid;

    // Current priority class
    int         prioClass;

    // Default priority class (without boosts)
    int         defPrioClass;

    // Current priority level
    int         prioLevel;

    // Default priority level
    int         defPrioLevel;

    // Current state
    int         procState;

    // Remaining time running
    ulong       timeSlice;

    // Default time-slice
    ulong       defTimeSlice;

    // Scheduler internals
    ListNode_t *schedNode;

} Process_t;

//------------------------------------------//
//              End of header               //
//------------------------------------------//

#endif