We have various functions to convert to a string, rename them all so we can
count on fmt_X being the formatter for struct X, and make them all return
`char *`.
Sometimes they existed but were private, sometimes they had a
different name. Most take a pointer, but simple types pass by copy:
short_channel_id, amount_msat and amount_sat.
The following public functions changed:
1. psbt_to_b64 -> fmt_wally_psbt.
2. pubkey_to_hexstr -> fmt_pubkey.
3. short_channel_id_to_str -> fmt_short_channel_id (scid by copy now!)
4. fmt_signature -> fmt_secp256k1_ecdsa_signature
5. fmt_amount_sat/fmt_amount_msat pass copy not pointer, return non-const char *.
6. node_id_to_hexstr -> fmt_node_id
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The pattern of making tal-allocated copies of wally data to pass around
was made redundant after these calls were added by the use of
tal_wally_start/tal_wally_end to parent wally allocations. We can thus
just pass the data directly and avoid the allocations.
Removes redundant allocations when checking tx filters and computing fees.
Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
The is_xxx script functions already perform these checks for us without
allocating. They currently expect their memory to be tal-allocated,
which is why a copy is made. However:
- The memory already *is* tal-allocated since wally is configured to do so.
- The tal-dependency is artifical and is removed in a future commit in
this PR.
This reverts commit c329756723.
Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
Processing blocks is rather slow at the moment, but one thing we can
do, is to prevent copying all output scripts, when really all we are
interested in are the couple of outputs that are P2WSH.
This builds the foundation of that by adding a method to introspect
the script without having to clone it first, saving us some
allocations, and deallocations.
Changelog-Changed: core: Processing blocks should now be faster
There are many contexts in which it doesn't make sense to create a PSBT
wrapping the tx. There are also tx features that are not supported in
wallys PSBT implementation yet (such as pegins), which fail if a PSBT
wrapper is created, even though such features are unlikely to ever be
used in txs that cln will create/manipulate.
Allow these cases to be explicit that they only want the tx. This avoids
hitting such errors, is clearer on the caller side, and is more efficient.
Changelog-None
Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
Rename the offending functions from wally_foo to cln_wally_foo.
For the sake of a minimal diff, only calls which conflict with wally
v1.0.0 have been changed. However it is bad form to use the wally_
function namespace; the remaining such calls should also be renamed.
Changelog-None
Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
This is the simple version which always tries to keep some sats if we
have an anchor channel. Turns out that we need something more
sophisticated for multifundchannel, so that's next.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `withdraw` will refuse to spend funds below `min-emergency-msat` if we have any anchor channels (and `all` will be reduced appropriately).
Changelog-Changed: JSON-RPC: `fundpsbt` and `utxopsbt` will refuse to spend funds below `min-emergency-msat` if we have any anchor channels.
Libwally update breaks compatibility, so
we do this in one large step.
Changelog-Changed: JSON-RPC: elements network PSET now only supports PSETv2.
Changelog-Added: JSON-RPC: PSBTv2 supported for fundchannel_complete, openchannel_update, reserveinputs, sendpsbt, signpsbt, withdraw and unreserveinputs parameter psbt, openchannel_init and openchannel_bump parameter initialpsbt, openchannel_signed parameter signed_psbt and utxopsbt parameter utxopsbt
We were missing the OP_PUSH for the pubkeys, and the spec mentions we
should be using 73 bytes to estimate the witness weight. Effectively
this adds 4 bytes which really just matters in case fees hit the
floor, and computing the weight becomes important.
Changelog-Fixed: onchaind: Witness weight estimations could be slightly lower than the VLS signer
Things allocated by libwally all get the tal_name "wally_tal",
which cost me a few hours trying to find a leak.
In the case where we're making one of the allocations the parent
of the others (e.g. a wally_psbt), we can do better: supply a name
for the tal_wally_end().
So I add a new tal_wally_end_onto() which does the standard
tal_steal() trick, and also changes the (typechecked!) name.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Firstly, we were not adding the extra fee output on our dummy tx,
because the fee amount was 0. We probably should always do this, even
if it's 0.
Secondly, there are 6 witnesses, not 1, for elements txs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And in particular, fix onchaind grinding code which used the
actual number of inputs and outputs (which already includes the
fee output); that breaks with the next patch which fixes other
calculations.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Before:
Ten builds, laptop -j5, no ccache:
```
real 0m36.686000-38.956000(38.608+/-0.65)s
user 2m32.864000-42.253000(40.7545+/-2.7)s
sys 0m16.618000-18.316000(17.8531+/-0.48)s
```
Ten builds, laptop -j5, ccache (warm):
```
real 0m8.212000-8.577000(8.39989+/-0.13)s
user 0m12.731000-13.212000(12.9751+/-0.17)s
sys 0m3.697000-3.902000(3.83722+/-0.064)s
```
After:
Ten builds, laptop -j5, no ccache: 8% faster
```
real 0m33.802000-35.773000(35.468+/-0.54)s
user 2m19.073000-27.754000(26.2542+/-2.3)s
sys 0m15.784000-17.173000(16.7165+/-0.37)s
```
Ten builds, laptop -j5, ccache (warm): 1% faster
```
real 0m8.200000-8.485000(8.30138+/-0.097)s
user 0m12.485000-13.100000(12.7344+/-0.19)s
sys 0m3.702000-3.889000(3.78787+/-0.056)s
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were getting off-by-one for the total amount that the change is for,
since it rounds the fee *down*, independent of the total weight of the
entire tx.
We fix this by using the diff btw the fee of the total weight (w/ and
w/o the change output)
We should actually be including this (as it may define _GNU_SOURCE
etc) before any system headers. But where we include <assert.h> we
often didn't, because check-includes would complain that the headers
included it too.
Weaken that check, and include config.h in C files before assert.h.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We assert() this in onchaind while grinding fees; better to free newtx.
Before this we hit 530MB, after a mere 2.5MB.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: onchaind uses much less memory on unilateral closes for old channels.
We force use of tal_wally_start/tal_wally_end around every wally
allocation, and with "end" make the caller choose where to reparent
everything.
This is particularly powerful where we allocate a tx or a psbt: we
want that tx or psbt to be the parent of the other allocations, so
this way we can reparent the tx or psbt, then reparent everything
else onto it.
Implementing psbt_finalize (which uses a behavior flag antipattern)
was tricky, so I ended up splitting that into 'psbt_finalize' and
'psbt_final_tx', which I think also makes the callers clearer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
