Re: [libvirt] [Qemu-devel] [PATCH v4 0/7] file descriptor passing using pass-fd

Am 26.06.2012 11:10, schrieb Daniel P. Berrange: > I was thinking about some of the sources complexity when using > FD passing from libvirt and wanted to raise one idea for discussion > before we continue. > > With this proposed series, we have usage akin to: > > 1. pass_fd FDSET={M} -> returns a string "/dev/fd/N" showing QEMU's > view of the FD > 2. drive_add file=/dev/fd/N > 3. if failure: > close_fd "/dev/fd/N" In fact, there are more steps: 4. use it successfully 5. close_fd "/dev/fd/N" I think it would well be possible that qemu just closes the fd when it's not used internally any more.