EAGAIN should never happen because we have data in the pipe. This change makes the behavior in alignment with `from_pipe_read`
EAGAIN should never happen because we have data in the pipe. This change makes the behavior in alignment with `from_pipe_read`

yannick/h2o,devnexen/h2o,h2o/h2o,h2o/h2o,devnexen/h2o,devnexen/h2o,h2o/h2o,h2o/h2o,h2o/h2o,h2o/h2o,yannick/h2o,devnexen/h2o,h2o/h2o,h2o/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,devnexen/h2o,yannick/h2o,yannick/h2o