#ifndef MINIMALSYS_H
#define MINIMALSYS_H

#include "int.h"

void exit(int8_t status);

#define STDIN  0
#define STDOUT 1
#define STDERR 2
intptr_t write(int32_t fd, const void* buf, intptr_t size);
intptr_t read(int32_t fd, const void* buf, intptr_t size);

#define O_RDONLY       00
#define O_WRONLY       01
#define O_RDWR         02
#define AT_FDCWD      -100

#if defined(__mips__)
  // linux/arch/mips/include/uapi/asm/fcntl.h
  #define O_APPEND	0x0008
  #define O_CREAT		0x0100	/* not fcntl */
  #define O_TRUNC		0x0200	/* not fcntl */
  #define O_EXCL		0x0400	/* not fcntl */
  #define O_NOCTTY	0x0800	/* not fcntl */
#else
  // linux/include/uapi/asm-generic/fcntl.h
  #define O_CREAT        1<<6
  #define O_EXCL         1<<7
  #define O_NOCTTY       1<<8
  #define O_TRUNC        1<<9
  #define O_APPEND       1<<10
#endif 
int32_t openat(int32_t fd, const char* filename, uint32_t flags, uint32_t mode);
#define open(...) openat(AT_FDCWD, __VA_ARGS__, 0)
#define openc(...) openat(AT_FDCWD, __VA_ARGS__)
int close(unsigned int fd);
int fsync(unsigned int fd);

uint32_t fork();

// Provide memset for clang
void *memset(void* s, int c, unsigned long n) {
  int8_t* mem = s;
  for(long int i = 0; i < n; ++i) mem[i] = c;
  return s;
}
#endif // !MINIMALSYS_H