Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format

[Gerd Hoffmann]

  Hi,

> If you want to do it as part of the QEMU codebase then a thread is
> probably the best way - it avoids the troubles of forking a
> multithreaded program and letting go of resources (guest memory, file
> descriptors) that aren't needed across fork.

That pretty much requires async monitor command support though, so the
iothread can continue driving guest i/o while the new worker thread
scales/compresses/writes the screendump.

cheers,
  Gerd