Rework file-transfers

For aborted transfers, we will have to move the transfer to the
TRANSFER_KILLED state.  Then we'll have to wait until the input
FIFO stops being readable (the user ^C the transfer).  Only then can
we move to TRANSFER_NONE.

If we move to TRANSFER_NONE immediately then we will initiate a
new transfer which we don't want to do.

The basic idea is:

If we move into the TRANSFER_KILLED state and timeout has expired (50ms?)
without the fd being readable (the user did a ^C on cat file > file_in)
then move the transfer to TRANSFER_NONE state.

0 files changed, 0 insertions, 0 deletions