/* PUSH_EVENT: The input FIFO is non-empty (or there is a pending
error). Nag the client until all the data has been read. In the
case of errors, the client will need to close or de-async the
/* PUSH_EVENT: The input FIFO is non-empty (or there is a pending
error). Nag the client until all the data has been read. In the
case of errors, the client will need to close or de-async the