Method read

src/basicio.cpp:521–531

}

DataBuf FileIo::read(size_t rcount) {
  if (rcount > size())
    throw Error(ErrorCode::kerInvalidMalloc);
  DataBuf buf(rcount);
  size_t readCount = read(buf.data(), buf.size());
  if (readCount == 0) {
    throw Error(ErrorCode::kerInputDataReadFailed);
  }
  buf.resize(readCount);
  return buf;
}

size_t FileIo::read(byte* buf, size_t rcount) {
  if (p_->switchMode(Impl::opRead) != 0) {