Method close

src/basicio.cpp:509–519

}

int FileIo::close() {
  int rc = 0;
  if (munmap() != 0)
    rc = 2;
  if (p_->fp_) {
    if (std::fclose(p_->fp_) != 0)
      rc |= 1;
    p_->fp_ = nullptr;
  }
  return rc;
}

DataBuf FileIo::read(size_t rcount) {
  if (rcount > size())