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pay: If the channel_hint matches our allocation allow it

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It means we consume the channel completely to the best of our
knowledge, so let that through.

Changelog-Fixed: pay: Squeezed out the last `msat` from our local view of the network
This commit is contained in:
Christian Decker
2022-07-06 17:38:49 +02:00
parent bdda62e1a4
commit 759fcb64a8
1 changed files with 11 additions and 2 deletions
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11
plugins/libplugin-pay.c
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@@ -515,7 +515,7 @@ static bool payment_chanhints_apply_route(struct payment *p, bool remove)
/* For all channels we check that they have a /* For all channels we check that they have a
* sufficiently large estimated capacity to have some * sufficiently large estimated capacity to have some
* chance of succeeding. */ * chance of succeeding. */
apply &= amount_msat_greater(curhint->estimated_capacity, apply &= amount_msat_greater_eq(curhint->estimated_capacity,
curhop->amount); curhop->amount);
if (!apply) { if (!apply) {
@@ -530,6 +530,15 @@ static bool payment_chanhints_apply_route(struct payment *p, bool remove)
type_to_string(tmpctx, type_to_string(tmpctx,
struct short_channel_id_dir, struct short_channel_id_dir,
&curhint->scid)); &curhint->scid));
paymod_log(
p, LOG_DBG,
"Capacity: estimated_capacity=%s, hop_amount=%s. "
"HTLC Budget: htlc_budget=%d, local=%d",
type_to_string(tmpctx, struct amount_msat,
&curhint->estimated_capacity),
type_to_string(tmpctx, struct amount_msat,
&curhop->amount),
curhint->htlc_budget, curhint->local);
return false; return false;
} }
} }