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ed178b560b
* 添加进程的policy属性 * update * 修改设置进程策略 * 删除重复定义 * 更正注释及格式 Co-authored-by: longjin <longjin@RinGoTek.cn>
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
#pragma once
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#include <common/glib.h>
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#include <process/process.h>
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/*
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* Scheduling policies
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*/
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#define SCHED_NORMAL 0
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#define SCHED_FIFO 1
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#define SCHED_RR 2
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#define SCHED_BATCH 3
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/* SCHED_ISO: reserved but not implemented yet */
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#define SCHED_IDLE 5
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#define SCHED_DEADLINE 6
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#define SCHED_MAX_POLICY_NUM SCHED_DEADLINE
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#define IS_VALID_SCHED_POLICY(_policy) ((_policy) > 0 && (_policy) <= SCHED_MAX_POLICY_NUM)
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struct sched_param
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{
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int sched_priority;
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};
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struct sched_attr
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{
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uint32_t size;
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uint32_t sched_policy;
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uint64_t sched_flags;
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/* SCHED_NORMAL, SCHED_BATCH */
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int32_t sched_nice;
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/* SCHED_FIFO, SCHED_RR */
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uint32_t sched_priority;
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/* SCHED_DEADLINE */
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uint64_t sched_runtime;
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uint64_t sched_deadline;
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uint64_t sched_period;
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/* Utilization hints */
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uint32_t sched_util_min;
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uint32_t sched_util_max;
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};
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static int __sched_setscheduler(struct process_control_block *p, const struct sched_attr *attr, bool user, bool pi);
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static int _sched_setscheduler(struct process_control_block *p, int policy, const struct sched_param *param,
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bool check);
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/**
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* sched_setscheduler -设置进程的调度策略
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* @param p 需要修改的pcb
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* @param policy 需要设置的policy
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* @param param structure containing the new RT priority. 目前没有用
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*
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* @return 成功返回0,否则返回对应的错误码
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*
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*/
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int sched_setscheduler(struct process_control_block *p, int policy, const struct sched_param *param);
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/**
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* @brief 包裹sched_enqueue(),将PCB加入就绪队列
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*
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* @param pcb
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*/
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void sched_enqueue(struct process_control_block *pcb);
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/**
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* @brief 包裹sched_cfs()，调度函数
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*
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*/
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void sched();
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void sched_init();
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/**
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* @brief 当时钟中断到达时，更新时间片
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*
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*/
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void sched_update_jiffies(); |