SIGABRT is used by the Go runtime to forcefully terminate all
goroutines, even if they are in a deadlocked state.
It is useful in development (to get a glimpse of any potential race or
hang conditions) and in production to forcefully terminate execution
when a standard SIGQUIT won't do.
This modifies the signal package to _not_ trap SIGABRT and let it be
handled in the standard way by the runtime.
This commit adds commitQueue which is a lightweight contention manager
for STM transactions. The queue attempts to queue up transactions that
conflict for sequential execution, while leaving all "unblocked"
transactons to run freely in parallel.
For unconfirmed commit tx anchors, supply the sweeper with cpfp info and
a confirmation target fee estimate.
The sweeper will try to pay for the parent commit tx as long as the
current fee estimate exceeds the pre-signed commit tx fee rate.
Extend the fee estimator to take into account parent transactions with
their weights and fees.
Do not try to cpfp parent transactions that have a higher fee rate than
the sweep tx fee rate.
To make it possible to request a Let's Encrypt certificate by using a
different IP address where the port 80 might still be free, we add the
IP part to its configuration as well instead of just the port.
This makes it possible to use an IPv6 address for the ACME request if
all available IPv4 addresses already have their port 80 occupied.
This commit removes the duplicate tor.streamisolation option from `sample-lnd.conf` example config file (which was accidentally added in commit #104a9094980f31560ca269d3b01f000dd775778d)
With this commit we make sure that all directories where lnd could
potentially want to write files to are created on startup. This fixes
the case where the lnddir isn't set but all other paths point to
explicit locations with non-existend parent directories.
We don't create the log dir as that's done by the log rotator already.
Preparation for a cpfp-aware weight estimator. For cpfp, a regular
weight estimator isn't sufficient, because it needs to take into account
the weight of the parent transaction(s) as well.
When we cancel a confirmation request, we should remove the request from
the height map regardless of the current height. Otherwise we end up in
the situation when the height is reached, the notification is attempted
sent which results in a crash.
The sweeper call UpdateParams does not update the exclusive group
property of a pending sweep. This led to anchor outputs being swept
after confirmation with an exclusive group restriction, which is not
necessary.
This commit changes the anchor resolver to not use UpdateParams anymore,
but instead always re-offer the anchor input to the sweeper. The sweeper
is modified so that a re-offering also updates the sweep parameters.
The add function tries to add an input to the current set. It therefore
calculates what the new set would look like before actually adding. This
commit isolates the state of the tentative set so that there is less
opportunity for bugs to creep in.
This commit fixes the to-local-witness estimate to use the correct
witness size estimate for anchor channels. We retain the off-by-one bug
from the original constant otherwise.
This commit modifies the JusticeDescriptor to support creation of
justice transactions spending from anchor commitments. Rather than the
unencumbered p2wkh scripts from before, the tower will now use the
to-remote-confirmed that includes the additional CSV delay of 1. This
also requires setting the sequence number appropriately on the to-remote
input.
