AaronFiore/electrum
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lnrouter: add comments about path-finding blocking the asyncio loop

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This commit is contained in:
SomberNight
2020-03-09 20:39:13 +01:00
parent 05a191cc6a
commit c95c0dcb80
3 changed files with 14 additions and 6 deletions
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7
electrum/lnworker.py
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@@ -922,7 +922,10 @@ class LNWallet(LNWorker):
success = False
for i in range(attempts):
try:
route = await self._create_route_from_invoice(decoded_invoice=lnaddr)
# note: this call does path-finding which takes ~1 second
# -> we will BLOCK the asyncio loop... (could just run in a thread and await,
# but then the graph could change while the path-finding runs on it)
route = self._create_route_from_invoice(decoded_invoice=lnaddr)
self.set_payment_status(payment_hash, PR_INFLIGHT)
self.network.trigger_callback('invoice_status', key)
payment_attempt_log = await self._pay_to_route(route, lnaddr)
@@ -1035,7 +1038,7 @@ class LNWallet(LNWorker):
f"min_final_cltv_expiry: {addr.get_min_final_cltv_expiry()}"))
return addr
async def _create_route_from_invoice(self, decoded_invoice) -> LNPaymentRoute:
def _create_route_from_invoice(self, decoded_invoice) -> LNPaymentRoute:
amount_msat = int(decoded_invoice.amount * COIN * 1000)
invoice_pubkey = decoded_invoice.pubkey.serialize()
# use 'r' field from invoice