tlnrouter: use htlc_maximum_msat - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
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---
DIR commit 52377dbfa04072e2296426a6db2e921157bd6da0
DIR parent ff0aa90ddf5c461105d0c798fa8f98f4db57d0be
HTML Author: SomberNight <somber.night@protonmail.com>
Date: Tue, 16 Oct 2018 17:08:44 +0200
lnrouter: use htlc_maximum_msat
Diffstat:
M electrum/lnrouter.py | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
---
DIR diff --git a/electrum/lnrouter.py b/electrum/lnrouter.py
t@@ -150,7 +150,7 @@ class ChannelInfoDirectedPolicy:
fee_proportional_millionths = channel_update_payload['fee_proportional_millionths']
channel_flags = channel_update_payload['channel_flags']
timestamp = channel_update_payload['timestamp']
- htlc_maximum_msat = channel_update_payload.get('htlc_maximum_msat') # optional
+ htlc_maximum_msat = channel_update_payload.get('htlc_maximum_msat') # optional
self.cltv_expiry_delta = int.from_bytes(cltv_expiry_delta, "big")
self.htlc_minimum_msat = int.from_bytes(htlc_minimum_msat, "big")
t@@ -497,7 +497,7 @@ class LNPathFinder(PrintError):
"""Heuristic cost of going through a channel.
direction: 0 or 1. --- 0 means node_id_1 -> node_id_2
"""
- channel_info = self.channel_db.get_channel_info(short_channel_id)
+ channel_info = self.channel_db.get_channel_info(short_channel_id) # type: ChannelInfo
if channel_info is None:
return float('inf')
t@@ -514,8 +514,11 @@ class LNPathFinder(PrintError):
if channel_info.capacity_sat is not None and \
payment_amt_msat // 1000 > channel_info.capacity_sat:
return float('inf') # payment amount too large
+ if channel_policy.htlc_maximum_msat is not None and \
+ payment_amt_msat > channel_policy.htlc_maximum_msat:
+ return float('inf') # payment amount too large
amt = payment_amt_msat or 50000 * 1000 # guess for typical payment amount
- fee_msat = fee_base_msat + amt * fee_proportional_millionths / 1000000
+ fee_msat = fee_base_msat + amt * fee_proportional_millionths / 1_000_000
# TODO revise
# paying 10 more satoshis ~ waiting one more block
fee_cost = fee_msat / 1000 / 10