Function read

Source/Common/Async.h:365–380

 */
template<typename AsyncReadStream>
std::size_t read(AsyncReadStream& Stream, mutable_buffer Buffers, error& ec) {
  size_t TotalBytesRead = 0;
  while (Buffers.size() != 0 || Buffers.FD) {
    auto BytesRead = Stream.read_some(Buffers, ec);
    TotalBytesRead += BytesRead;
    if (Buffers.FD) {
      (void)Buffers.consume_fd();
    }
    Buffers += BytesRead;
    if (ec != error::success) {
      return TotalBytesRead;
    }
  }
  ec = error::success;
  return TotalBytesRead;
}

/**
 * Synchronously writes fixed-length data to the given Stream.