tlnchan: add available_to_spend() - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
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---
DIR commit ac68c8f53119855ea3293da07205084b0777e7ad
DIR parent d317bdbd9b8f0ad6a8a17b9e841e4e0d4cfbcafa
HTML Author: Janus <ysangkok@gmail.com>
Date: Wed, 17 Oct 2018 20:01:45 +0200
lnchan: add available_to_spend()
Diffstat:
M electrum/gui/qt/channels_list.py | 13 +++++++++++--
M electrum/lnchan.py | 9 ++++++---
M electrum/tests/test_lnchan.py | 1 +
3 files changed, 18 insertions(+), 5 deletions(-)
---
DIR diff --git a/electrum/gui/qt/channels_list.py b/electrum/gui/qt/channels_list.py
t@@ -23,10 +23,19 @@ class ChannelsList(MyTreeWidget):
self.status = QLabel('')
def format_fields(self, chan):
+ labels = {}
+ for subject in (REMOTE, LOCAL):
+ available = chan.available_to_spend(subject)//1000
+ label = self.parent.format_amount(available)
+ bal_other = chan.balance(-subject)//1000
+ available_other = chan.available_to_spend(-subject)//1000
+ if bal_other != available_other:
+ label += ' (+' + self.parent.format_amount(bal_other - available_other) + ')'
+ labels[subject] = label
return [
bh2u(chan.node_id),
- self.parent.format_amount(chan.balance(LOCAL)//1000),
- self.parent.format_amount(chan.balance(REMOTE)//1000),
+ labels[LOCAL],
+ labels[REMOTE],
chan.get_state()
]
DIR diff --git a/electrum/lnchan.py b/electrum/lnchan.py
t@@ -155,11 +155,9 @@ class Channel(PrintError):
return self._state
def check_can_pay(self, amount_msat):
- # FIXME what about channel_reserve_satoshis? will the remote fail the channel if we go below? test.
- # FIXME what about tx fees
if self.get_state() != 'OPEN':
raise PaymentFailure('Channel not open')
- if self.balance(LOCAL) < amount_msat:
+ if self.available_to_spend(LOCAL) < amount_msat:
raise PaymentFailure('Not enough local balance')
if len(self.htlcs(LOCAL, only_pending=True)) + 1 > self.config[REMOTE].max_accepted_htlcs:
raise PaymentFailure('Too many HTLCs already in channel')
t@@ -461,6 +459,11 @@ class Channel(PrintError):
assert initial == self.config[subject].amount_msat
return initial
+ def available_to_spend(self, subject):
+ # FIXME what about channel_reserve_satoshis? will the remote fail the channel if we go below? test.
+ # FIXME what about tx fees
+ return self.balance(subject) - htlcsum(self.htlcs(subject, only_pending=True))
+
def amounts(self):
remote_settled= htlcsum(self.htlcs(REMOTE, False))
local_settled= htlcsum(self.htlcs(LOCAL, False))
DIR diff --git a/electrum/tests/test_lnchan.py b/electrum/tests/test_lnchan.py
t@@ -339,6 +339,7 @@ class TestDust(unittest.TestCase):
aliceHtlcIndex = alice_channel.add_htlc(htlc)
bobHtlcIndex = bob_channel.receive_htlc(htlc)
force_state_transition(alice_channel, bob_channel)
+ self.assertEqual(alice_channel.available_to_spend(LOCAL), alice_channel.balance(LOCAL) - htlc['amount_msat'])
self.assertEqual(len(alice_channel.local_commitment.outputs()), 3)
self.assertEqual(len(bob_channel.local_commitment.outputs()), 2)
default_fee = calc_static_fee(0)