#ifndef __SCHEDULER_H
#define __SCHEDULER_H

#include <semaphore.h>
#include <pthread.h>

struct scheduler;
#include "process.h"

struct scheduler {
    /** global simulated time */
    int clock;

    /** number of processes */
    int live_threads;

    /** reference to current process */ 
    struct process *current;

    /* list of scheduled events */
    struct list event_list;

};

void sched_unschedule(struct scheduler *sched, struct process *p);
void sched_schedule(struct scheduler *sched, struct process *p, int time);
void sched_pass_baton(struct scheduler *sched, struct process *p);
void sched_pass_baton_and_die(struct scheduler *sched, struct process *p);
void sched_next_event(struct scheduler *sched, bool);
void sched_passivate(struct scheduler *sched);
void sched_reactivate(struct scheduler *sched, struct process *p, int delay);
void sched_reactivate_now(struct scheduler *sched, struct process *p);
void sched_activate(struct scheduler *sched, struct process *p, int time);
void sched_activate_now(struct scheduler *sched, struct process *p);
void sched_hold(struct scheduler *sched, int delay);
void sched_run_simulation(struct scheduler *sched);
void sched_print_ev_list(struct scheduler *self);
struct scheduler *sched_create(void);

#endif /* __SCHEDULER_H */