/* process.h */

#ifndef PROCESS_H
#define PROCESS_H

#include "message.h"
#include "registers.h"
#include "string.h"
#include "types.h"

// process states
enum { CREATED,
       WAITING,
       RUNNING,
       BLOCKED,
       DELAYED,
       TERMINATED,
       CRASHED };

#define PROCESSES 7

#define STACK_SIZE 0x4000

typedef struct {
  int pid;
  int status;
  int priority;
  int delay_time;
  int wait_time;
  uint32_t address;
  char name[MAX_STR_LEN];
  char input[MAX_STR_LEN];
  int toggle;
  int supervisor_pid;
  message current_message;
  message messages[MESSAGE_QUEUE_SIZE];
  registers_t regs;
  char stack[STACK_SIZE];
  char arg_1[MAX_STR_LEN];
  char arg_2[MAX_STR_LEN];
} PCB;

int is_supervisor(int pid);
void terminate(int pid);
void init_PCB();
int new_p(char name[], char argv[2][]);
void registers_memcpy(registers_t *dst, const registers_t *src);
void ps();
void clear_PCB(int pid);

extern PCB PCB_list[PROCESSES];

#endif