This gets a terminal spinner to spin after a short delay like in
vere. This also fixes a bug in termRefreshLine which was screwing
up redisplay of the terminal spinner; it hadn't been translated
from C properly.
This performs all normal filesystem operations. We can take
filesystem hash snapshots on startup, write the contents of an
%ergo to disk, send changes to Urbit with an %into, and finally
delete mount points when they are %ogre.
This doesn't deal with updating an initial filesystem on first
run with -A, or with acquiring a lockfile, which should happen
elsewhere.
Can take filesystem hash snapshots on startup, and can write the
contents of an %ergo to disk.
The compute thread should take an event or a save request or a
shutdown request. We now take snapshots every 120 seconds like
vere does, and take a snapshot before clean shutdown.
(Also changes the terminal driver so that it doesn't unboundedly
block shutdown.)
Joe told me to look at the Jaque terminal and I just did. That uses
the Lanterna Java library to handle terminal output. Joe then suggested
that I move the entire system here to curses or another similar library.
