src/kernel/task.h


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#ifndef TASK_H
#define TASK_H

#include <stdbool.h>
#include <stdint.h>

#define TASK_NAME_LEN 15

enum wait_mode {
  NONE,
  PROCESS_END,
};

struct task_state {
  uint32_t ret_addr;
  void *page_directory;

  uint32_t ebx;
  uint32_t ecx;
  uint32_t edx;
  uint32_t esi;
  uint32_t edi;
  uint32_t ebp;
  uint32_t esp;

  enum wait_mode wait_mode;
  uint32_t wait_arg;

  char name[TASK_NAME_LEN + 1];
} __attribute__ ((packed));

extern struct task_state *active_task;

void init_tasks();

uint32_t new_task(struct task_state state);
void advance_active_task();

void delete_task(struct task_state *state);

#endif