I did some CHANGELOG and git digging to see when these were deprecated, and
some were very old (v0.8.2!). But since they didn't warn users loudly, I
chose to do so this release only.
I renamed ld's `deprecated_apis` to `deprecated_ok` to make sure I
caught them all.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Removes the tal_count checking overhead when iterating constant arrays.
Separated from the previous commit to make review easier.
Changelog-None
Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
- Avoid overhead from tal checks when iterating block txs
- Skip pegin txs as well as coinbase txs while iterating
- Early-exit if the txout cannot possibly be p2wsh
- Don't re-calculate the txid when we already have it
- Don't allocate a script for non-policy asset outputs
- Don't copy txids for non-interesting UTXOs
Note the below -Changed line covers the previous wally and PSBT commits
which also provide general block processing speedups.
Changelog-Changed: core: Processing blocks should now be faster
Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
This means refactoring out some of the generic anchor info, from the
per-commitment-tx info (we can have at least two, perhaps more with
splicing!).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We have to work quite hard to do this, since we don't want to call
finish if the broadcast has been freed in the meantime.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Previously, every broadcast was attached to a channel, but we can
make it explicit, so when the context is freed, the re-broadcast stops
(if rebroadcast is set).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If the context is freed, the callback isn't called. This doesn't matter
yet, since our callbacks tend to be such that the callback itself is
required to free things, but it's clearer this way and allows more
flexible usage in following patches.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
`struct log` becomes `struct logger`, and the member which points to the
`struct log_book` becomes `->log_book` not `->lr`.
Also, we don't need to keep the log_book in struct plugin, since it has
access to ld's log_book.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is just housekeeping that allows up
to do not spam the logs of people with not
useful information.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
ignore the min fee as specified by the user setting.
We explicitly allow the user to ignore the fee limits, although this comes with inherent risks.
By enabling this option, users are explicitly
I was aware of the potential dangers.
There are situations, such as the one described in [1], where it
becomes necessary to bypass the fee limits to resolve issues like a stuck channel.
BTW experimental-anchors should fix this.
[1] https://github.com/ElementsProject/lightning/issues/6362
Reported-by: @pabpas
Fixes: 64b1ddd761
Link: https://github.com/ElementsProject/lightning/issues/6362
Changelog-Fixes: do not ignore the ignore-fee-limit option during
update_fee
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
We usually have access to `ld`, so avoid the global.
The only place generic code needs it is for the json command struct,
and that already has accessors: add one for libplugin and lightningd
to tell it if deprecated apis are OK.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
In most cases, it's the same as option_anchor_outputs, but for
fees it's different. This transformation is the simplest:
pass it as a pair, and test it explicitly.
In future we could rationalize some paths, but this was nice
and mechanical.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Since we can CPFP, we don't have to track the feerate as closely. But
it still needs to get in the mempool, so we use 10 sat/byte, or the
100 block estimate if that is higher.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `feerates` has new fields `unilateral_anchor_close` to show the feerate used for anchor channels (currently experimental), and `unilateral_close_nonanchor_satoshis`.
Changelog-Changed: JSON-RPC: `feerates` `unilateral_close_satoshis` now assumes anchor channels if enabled (currently experimental).
We don't actually use it anywhere, but we actually want to now for
CPFP. So give it more parameters and make it return bool so it can
be set without necessarily suppressing rexmit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It depends on whether we negotiated anchors: just document that this
field doesn't apply for anchors (it becomes zero by the end of this
patch series, which is weird).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When core lightning is asking the information about
the blockchain with `getchaininfo` command lightningd
know already the information about the min and max block height.
the problem is when we have a smarter Bitcoin backend that is able
to switch between different clients in some cases is helpful
give the information about current known height by lightningd and
pass it down to the plugin.
In this way, the plugin knows what is the correct known height from lightnind, and can
try to fix some problems if any exit.
This is particularly useful when you are syncing a new backend from scratch
like https://github.com/cloudhead/nakamoto and we avoid returning the
lower height from the known, and avoid the crash of core lightning.
With this information, the plugin can start to sync the chain and return
the answer back only when the chain is in sync with the current status of
lightningd.
Another reason to add this field and not wait the correct block in core
lightning itself is because Bitcoin Core is extremely slow to sync up,
so the question here is, how long should we wait? The time depends
on various factors.
With this approach of informing the plugin about the height, in some cases,
you can start the syncing but move the execution to another backend until
the previous one is ready.
The problem I want to solve is that I don't want to be left in the dark when
we run `getchaininfo`, and I want to have the opportunity to wait for
the blockchain sync or decide to dispatch the request elsewhere.
Changelog-Added: Pass the current known block height down to the getchaininfo call.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
We also do it on every block, but since bitcoind can't always be counted
to rebroadcast for us, we might as well be aggressive!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We would only set it the first time, which was OK for how we were using it
before. Now we want to also set it for rebroadcast.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `feerates`: added `floor` field for current minimum feerate bitcoind will accept
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Plugins: `estimatefees` can return explicit `fee_floor` and `feerates` by block number.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Drop try_get_feerate() in favor of explicit feerate_for_deadline() and
smoothed_feerate_for_deadline().
This shows us everywhere we deal with old-style feerates by names.
`delayed_to_us` and `htlc_resolution` will be moving to dynamic fees,
so deprecate those.
Note that "penalty" is still used for generating penalty txs for
watchtowers, and "unilateral_close" still used until we get zero-fee
anchors.
Changelog-Added: JSON-RPC: `feerates` `estimates` array shows fee estimates by blockcount from underlying plugin (usually *bcli*).
Changelog-Changed: JSON-RPC: `close`, `fundchannel`, `fundpsbt`, `multifundchannel`, `multiwithdraw`, `txprepare`, `upgradewallet`, `withdraw` `feerate` (`feerange` for `close`) value *slow* is now 100 block-estimate, not half of 100-block estimate.
Changelog-Deprecated: JSON-RPC: `close`, `fundchannel`, `fundpsbt`, `multifundchannel`, `multiwithdraw`, `txprepare`, `upgradewallet`, `withdraw` `feerate` (`feerange` for `close`) expressed as, "delayed_to_us", "htlc_resolution", "max_acceptable" or "min_acceptable". Use explicit block counts or *slow*/*normal*/*urgent*/*minimum*.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rather than have specific-purpose levels, have an array of
[blockcount, feerate], and rebuild the specific-purpose levels
for now on top.
We also keep a *separate* smoothed feerate, so you can ask for that
explicitly.
Since all the plugins used the same formula to derive the different
named fee levels, we apply the reverse to return to the underlying
estimates: updating the interface comes next.
This is ugly for now, but various specific-purpose levels will be
going away, as we shift to deadline-driven fees.
This temporarily breaks the floor calculation, so that test is
disabled.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We have the FEERATE_FLOOR constant if you don't care, but usually you want
to use the current bitcoind lower limit, so call get_feerate_floor()
(which is currently the same, but coming!).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fun story. We're changing onchaind to hand txs to us, and we will
construct them and do the broadcast for it. lightningd tells onchaind
the witness it used (with flags to indicate which fields were
signatures so should be ignored) so onchaind can recognize the tx
when/if it is mined.
And when onchaind was waiting for a CLTV delay, it wouldn't tell
lightningd yet, but wait until the parent was sufficiently deep
But this caused bugs!
In particular, on replay, onchaind would see transactions which it
hasn't sent yet. This was not a problem before, as onchaind had
created the tx, even if it hadn't told lightningd to broadcast it, so
recognized the variant when it came in. When we're relying on
lightningd to tell us what the tx will look like, this doesn't work
any more.
The cause of this is that we fire off txowatches ("this output was
spent!") while we process blocks, and only fire off txwatches ("this
tx increased depth") once all the current blocks are processed. Often
this didn't matter, since we replay messages to onchaind from the
database, *but* we trim the last few blocks on restart (or, if there's
a small reorg while we're stopped), and we can hit this misordering.
Changing our topology code to only ever process one block at a time
would be a solution, but slows down catchup (and tests, where we often
mine a run of blocks).
So, this seems like a premature optimization, but it's really
required! And in future, lightningd can use this knowledge of pending
transactions to combine them in more clever ways.
Note that if a tx is valid at block N, we broadcast it once we see
block N-1, to get it in the mempool for block N.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It was once only called on failure, now it's always called (if set).
It was called different things in different places, so unify it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This was found by tests/test_plugin.py::test_important_plugin and
was NOT a flake!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-None: only just committed
We had a quadratic check when processing a block, and this just
reduces it to be linear. Combined with the previous fix of adding txs
multiple times, this should speed up block processing considerably.
The list of outgoing transactions was growing with every
rebroadcast. Now we just check whether it is already in the list and
don't add it anymore
Changelog-Fixed: ld: Reduce identification of own transactions to not slow down over time, reducing block processing time
Suggested-by: Matt Whitlock <@whitslack>
Changelog-Changed: JSON-RPC: `listfunds` now lists coinbase outputs as 'immature' until they're spendable
Changelog-Changed: JSON-RPC: UTXOs aren't spendable while immature
It's a bit more optimal, and tells gossipd exactly what height the
spend occurred at (with multiple blocks, it's not always the current
height!). It will need that next patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
First, merge the _ahf_ and non-ahf interfaces.
Second, remove the always-NULL txs->cmd field.
Then, add optional id_prefix for bitcoind_sendrawx, so if it's
triggered by a command (e.g. "withdraw") it's shown correctly in logs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
There are hardly any lightningd-specific JSON functions: all that's left
are the feerate ones, and there's already a comment that we should have
a lightningd/feerate.h.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
Jon Griffiths
Chris Guida
Christian Decker
Vincenzo Palazzo
niftynei
Greg Sanders
fiatjaf