mirror of
https://gitlab.os-k.eu/os-k-team/os-k.git
synced 2023-08-25 14:03:10 +02:00
81 lines
3.0 KiB
C
81 lines
3.0 KiB
C
//----------------------------------------------------------------------------//
|
|
// GNU GPL OS/K //
|
|
// //
|
|
// Desc: Scheduler-related functions //
|
|
// //
|
|
// //
|
|
// Copyright © 2018-2019 The OS/K Team //
|
|
// //
|
|
// This file is part of OS/K. //
|
|
// //
|
|
// OS/K is free software: you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation, either version 3 of the License, or //
|
|
// any later version. //
|
|
// //
|
|
// OS/K is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY//without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
|
|
//----------------------------------------------------------------------------//
|
|
|
|
#ifndef _KALKERN_BASE_H
|
|
#include <kernel/base.h>
|
|
#endif
|
|
|
|
#ifndef _KALKERN_SCHED_H
|
|
#define _KALKERN_SCHED_H
|
|
|
|
//------------------------------------------//
|
|
|
|
//
|
|
// Value of the preemption count indicating that preemption is activated
|
|
//
|
|
enum { PREEMPT_ON = 0 };
|
|
|
|
// Time in ticks a process should be run
|
|
enum
|
|
{
|
|
DEF_PROC_TSLICE = 3, // 20 ticks
|
|
TCR_PROC_TSLICE = 20000 // 20000 ticks (time critical)
|
|
};
|
|
|
|
// Priority classes
|
|
enum
|
|
{
|
|
TIME_CRIT_PROC = 0,
|
|
SERV_PRIO_PROC = 1,
|
|
REGL_PRIO_PROC = 2,
|
|
IDLE_PRIO_PROC = 3,
|
|
};
|
|
|
|
// Names of the priority classes
|
|
extern const char *PsPrioClassesNames[];
|
|
|
|
//------------------------------------------//
|
|
|
|
//
|
|
// Re-scheduling and preemption
|
|
// XXX atomic operations
|
|
//
|
|
#define PsRequestReSched() (++KeCurCPU->needReSched)
|
|
#define PsDisablePreemption() (++KeCurCPU->preemptCount)
|
|
#define PsEnablePreemption() do { assert(KeCurCPU->preemptCount > 0); \
|
|
--KeCurCPU->preemptCount; } while(0)
|
|
|
|
//------------------------------------------//
|
|
|
|
void PsInitSched(void);
|
|
void PsFiniSched(void);
|
|
|
|
void PsSchedThisProc(Process_t *);
|
|
void PsSchedOnTick(void);
|
|
|
|
//------------------------------------------//
|
|
|
|
#endif
|
|
|