#pragma once

#include <stddef.h>

typedef struct {
  uint64_t x0, x1;
  uint64_t x2, x3;
  uint64_t x4, x5;
  uint64_t x6, x7;
  uint64_t x8, x9;
  uint64_t x10, x11;
  uint64_t x12, x13;
  uint64_t x14, x15;
  uint64_t x16, x17;
  uint64_t x18, x19;
  uint64_t x20, x21;
  uint64_t x22, x23;
  uint64_t x24, x25;
  uint64_t x26, x27;
  uint64_t x28, fp;
  uint64_t lr, spsr_el1;
  uint64_t elr_el1;
  uint64_t esr_el1;
  uint64_t sp_el0;
} trapframe_t;

struct thread;

typedef struct process {
  int32_t pid;
  struct thread *th;

  int32_t exitcode;

  void *stack;
  size_t stack_size;

  void *mem;
  size_t mem_size;

  trapframe_t *regs;
} process_t;

// thread_func_t, cast from
// void run_process_by_name(const char *filename)
int32_t run_process_by_name(uint64_t filename);

// void run_process(process_t *)
int32_t run_process(uint64_t process);

process_t *fork_process(const process_t *from);

extern int32_t global_pid_counter;