text: #pragma once
  
  #include <l4/enum/sfipctypes.h>
  
  #define _FILE_mmap   (-SFIPC_MMAP)
  #define _FILE_munmap (-SFIPC_MUNMAP)
  #define _FILE_msync  (-SFIPC_MSYNC)
  #define _FILE_fault  (-SFIPC_FAULT)
  #define _FILE_pread  1
  #define _FILE_pwrite 2
  #define _FILE_read   3
  #define _FILE_write  4
  #define _FILE_lseek  5
  #define _FILE_ioctl  6
  #define _FILE_close  7
  