Method open_raw

kernel/cellos/src/sys_fs.cpp:733–938

}

lv2_file::open_raw_result_t lv2_file::open_raw(const std::string &local_path,
                                               s32 flags, s32 /*mode*/,
                                               lv2_file_type type,
                                               const lv2_fs_mount_info &mp) {
  // TODO: other checks for path

  if (fs::is_dir(local_path)) {
    return {CELL_EISDIR};
  }

  rx::EnumBitSet<fs::open_mode> open_mode{};

  switch (flags & CELL_FS_O_ACCMODE) {
  case CELL_FS_O_RDONLY:
    open_mode += fs::read;
    break;
  case CELL_FS_O_WRONLY:
    open_mode += fs::write;
    break;
  case CELL_FS_O_RDWR:
    open_mode += fs::read + fs::write;
    break;
  default:
    break;
  }

  if (mp.read_only) {
    if ((flags & CELL_FS_O_ACCMODE) != CELL_FS_O_RDONLY &&
        fs::is_file(local_path)) {
      return {CELL_EPERM};
    }
  }

  if (flags & CELL_FS_O_CREAT) {
    open_mode += fs::create;

    if (flags & CELL_FS_O_EXCL) {
      open_mode += fs::excl;
    }
  }

  if (flags & CELL_FS_O_TRUNC) {
    open_mode += fs::trunc;
  }

  if (flags & CELL_FS_O_MSELF) {
    open_mode = fs::read;
    // mself can be mself or mself | rdonly
    if (flags & ~(CELL_FS_O_MSELF | CELL_FS_O_RDONLY)) {
      open_mode = {};
    }
  }

  if (flags & CELL_FS_O_UNK) {
    sys_fs.warning(
        "lv2_file::open() called with CELL_FS_O_UNK flag enabled. FLAGS: %#o",
        flags);
  }