On 07/25/2012 02:22 AM, Kevin Wolf wrote: >>> Hm, not a nice interface where qemu_close() needs the filename and >>> (worse) could be given a wrong filename. Maybe it would be better to >>> maintain a list of fd -> fdset mappings in qemu_open/close? >>> >> >> I agree, I don't really like it either. >> >> We already have a list of fd -> fdset mappings (mon_fdset_fd_t -> >> mon_fdset_t). Would it be too costly to loop through all the fdsets/fds >> at the beginning of every qemu_close()? > > I don't think so. qemu_close() is not a fast path and happens almost > never, and the list is short enough that searching it isn't a problem > anyway. I agree - just do the loop to do the reverse lookup yourself, rather than making qemu_close() have a different signature than close(). -- Eric Blake eblake@xxxxxxxxxx +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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