When we call ordersStore.BeginEnqueue, the unsent orders file for that
satellite and hour is prevented from being sent. It is freed when the
commit callback returned by BeginEnqueue is used. This change ensures
that we always call the commit callback, even when we have an empty
order or an order with Amount <= 0.
Change-Id: Ic4678f7eaa1e6957dd77d4bb5a23bb35d25b1e93
This change accomplishes multiple things:
1. Instead of having a max in flight time, which means
we effectively have a minimum bandwidth for uploads
and downloads, we keep track of what windows have
active requests happening in them.
2. We don't double check when we save the order to see if it
is too old: by then, it's too late. A malicious uplink
could just submit orders outside of the grace window and
receive all the data, but the node would just not commit
it, so the uplink gets free traffic. Because the endpoints
also check for the order being too old, this would be a
very tight race that depends on knowledge of the node system
clock, but best to not have the race exist. Instead, we piggy
back off of the in flight tracking and do the check when
we start to handle the order, and commit at the end.
3. Change the functions that send orders and list unsent
orders to accept a time at which that operation is
happening. This way, in tests, we can pretend we're
listing or sending far into the future after the windows
are available to send, rather than exposing test functions
to modify internal state about the grace period to get
the desired effect. This brings tests closer to actual
usage in production.
4. Change the calculation for if an order is allowed to be
enqueued due to the grace period to just look at the
order creation time, rather than some computation involving
the window it will be in. In this way, you can easily
answer the question of "will this order be accepted?" by
asking "is it older than X?" where X is the grace period.
5. Increases the frequency we check to send up orders to once
every 5 minutes instead of once every hour because we already
have hour-long buffering due to the windows. This decreases
the maximum latency that an order will be reported back to
the satellite by 55 minutes.
Change-Id: Ie08b90d139d45ee89b82347e191a2f8db1b88036
* Instead of archiving a list of orders and deleting an "unsent" file in
separate steps, archival simply moves the old unsent file to a new
archived file
* Add maxInFlightTime to be used along with grace period for sending
buffer
* Create unsent/archival directories in constructor
* Code cleanup
Change-Id: Ia3bc2aaf60cced6c6d413465423d78c7d5151188
* Allow orders to be archived after being settled successfully with the
satellite.
* Allow for cleanup of orders that were archived before a certain time.
* Rewrite other parts of the orders file store to work better with new
design.
Change-Id: I39bea96d80e66a324ec522745169bd6d8b351751
* Will replace order limits database.
* This change adds functionality for storing and listing unsent orders.
* The next change will add functionality for order archival after
submission.
Change-Id: Ic5e2abc63991513245b6851a968ff2f2e18ce48d
