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lnchan: add available_to_spend()

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This commit is contained in:
Janus
2018-10-17 20:01:45 +02:00
committed by ThomasV
parent d317bdbd9b
commit ac68c8f531
3 changed files with 18 additions and 5 deletions
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9
electrum/lnchan.py
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@@ -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')
@@ -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))