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lightningd: use lowball feerate for commit_tx on anchor channels.

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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).
This commit is contained in:
Rusty Russell
2023-06-26 08:40:21 +09:30
parent dd76d60b0d
commit e45bf14300
15 changed files with 199 additions and 99 deletions
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6
lightningd/feerate.c
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@@ -68,7 +68,11 @@ static struct command_result *param_feerate_unchecked(struct command *cmd,
return NULL;
}
if (json_tok_streq(buffer, tok, "unilateral_close")) {
**feerate = unilateral_feerate(cmd->ld->topology);
**feerate = unilateral_feerate(cmd->ld->topology, false);
return NULL;
}
if (json_tok_streq(buffer, tok, "unilateral_anchor_close")) {
**feerate = unilateral_feerate(cmd->ld->topology, true);
return NULL;
}