scheduler.h

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#pragma once
 
#include "sys/list_head.h"
#include "process/process.h"
#include "stddef.h"
 
typedef struct runqueue_t {
    size_t num_active;
    size_t num_periodic;
    list_head queue;
    task_struct *curr;
} runqueue_t;
 
typedef struct sched_param_t {
    int sched_priority;
    time_t period;
    time_t deadline;
    time_t arrivaltime;
    bool_t is_periodic;
} sched_param_t;
 
void scheduler_initialize(void);
 
uint32_t scheduler_getpid(void);
 
task_struct *scheduler_get_current_process(void);
 
time_t scheduler_get_maximum_vruntime(void);
 
size_t scheduler_get_active_processes(void);
 
task_struct *scheduler_get_running_process(pid_t pid);
 
void scheduler_enqueue_task(task_struct *process);
 
void scheduler_dequeue_task(task_struct *process);
 
void scheduler_run(pt_regs *f);
 
void scheduler_store_context(pt_regs *f, task_struct *process);
 
void scheduler_restore_context(task_struct *process, pt_regs *f);
 
void scheduler_enter_user_jmp(uintptr_t location, uintptr_t stack);
 
task_struct *scheduler_pick_next_task(runqueue_t *runqueue);
 
int sys_sched_setparam(pid_t pid, const sched_param_t *param);
 
int sys_sched_getparam(pid_t pid, sched_param_t *param);
 
int sys_waitperiod(void);
 
int is_orphaned_pgrp(pid_t gid);
 
void do_exit(int status);