Il 26/11/2013 15:00, Lei Li ha scritto: >>> >> I think adding a byte in the middle of the stream is not reliable. >> >> Rather, you should transmit the socket always at the same place, for >> example in the first call of qemu_local_save_ram, after it has written >> the 64-bit field. > > I guess 'transmit the socket' you mean transmit the fd?
Yes. > Sorry that I am quite understand your suggestion here.. Do you > mean that send_pipefd in the first call of qemu_local_save_ram > after it has written the 64-bit field? In this way, get rid of > qemu_local_send_pipefd? Yes. This way you know exactly where to "eat" the byte that's written with sendmsg. Paolo > Currently, the fd control message is sent at the end of the stream > in ram_save_setup stage, followed by the ram page. The control > message of fd is always at the same place.
