Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async

[Gerd Hoffmann]

  Hi,

> If all you need here is to delay sending the response, then maybe the
> current interface could work (although I honestly don't trust it and
> regret not having dropped it). Otherwise our only choice would be to
> work on getting the QAPI async support merged.

A delayed monitor response is all we need.

The command may take a bit to finish, where "a bit" is in the order of a
few seconds max, usually less than a second.  Blocking the monitor for
that amount of time is fine, but blocking the io thread introduces
insane long I/O latencies for the guest (and device emulation).

cheers,
  Gerd