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channeld, openingd: take into account option_anchor_outputs for fees.

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HTLC fees increase (larger weight), and the fee paid by the opener
has to include the anchor outputs (i.e. 660 sats).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2020-08-14 03:14:02 +09:30
parent 7a2f964d43
commit 85e3b43176
17 changed files with 127 additions and 68 deletions
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6
channeld/commit_tx.c
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@@ -18,7 +18,8 @@ static bool trim(const struct htlc *htlc,
enum side side)
{
return htlc_is_trimmed(htlc_owner(htlc), htlc->amount,
feerate_per_kw, dust_limit, side);
feerate_per_kw, dust_limit, side,
false /* FIXME-anchor */);
}
size_t commit_tx_num_untrimmed(const struct htlc **htlcs,
@@ -118,7 +119,8 @@ struct bitcoin_tx *commit_tx(const tal_t *ctx,
* 2. Calculate the base [commitment transaction
* fee](#fee-calculation).
*/
base_fee = commit_tx_base_fee(feerate_per_kw, untrimmed);
base_fee = commit_tx_base_fee(feerate_per_kw, untrimmed,
false /* FIXME-anchor */);
SUPERVERBOSE("# base commitment transaction fee = %s\n",
type_to_string(tmpctx, struct amount_sat, &base_fee));