#ifndef _SCHEDULER_H
#define _SCHEDULER_H

#include <drivers/irq.h>

#include <types.h>

typedef enum {
  TASK_READY,
  TASK_RUNNING,
  TASK_SLEEPING,
  TASK_BLOCKED,
  TASK_TERMINATED,
} task_state_t;

typedef struct task {
  uint32_t id;

  registers_t* regs;    /* pointer to saved register frame */
  uint32_t* stack_base; /* original malloc() pointer */

  task_state_t state;
  struct task* next;

  uint64_t wakeup_tick;
} task_t;

void scheduler_init(void);
task_t* create_task(void (*entry)());
void scheduler_tick(registers_t* regs);

#endif