On Wed, Oct 12, 2016 at 08:15:02PM +0100, Dr. David Alan Gilbert wrote: > Hi, > I had a look at a couple of readline like libraries; > editline and linenoise. A difficulty with using them is that > they both want fd's or FILE*'s; editline takes either but > from a brief look I think it's expecting to extract the fd. > That makes them tricky to integrate into qemu, where > the chardev's hide a whole bunch of non-fd things; in particular > tls, mux, ringbuffers etc. > > If we could get away with just a FILE* then we could use fopencookie, > but that's GNU only. > > Is there any sane way of shepherding all chardev's into having an > fd?
The entire chardev abstraction model exists precisely because we cannot make all chardevs look like a single fd. Even those which are fd based may have separate FDs for input and output. IMHO the only viable approach would be to enhance linenoise/editline to not assume use of fd* or FILE * abstractions. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://entangle-photo.org -o- http://search.cpan.org/~danberr/ :|
