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Fixes potential runtime errors for dictionaries changing size

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This commit is contained in:
Sergi Delgado Segura
2020-04-21 13:40:43 +02:00
parent 7e800ade4a
commit 0e5a99b778
2 changed files with 14 additions and 11 deletions
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18
teos/responder.py
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@@ -337,7 +337,6 @@ class Responder:
for tx in self.unconfirmed_txs:
if tx in self.missed_confirmations:
self.missed_confirmations[tx] += 1
else:
self.missed_confirmations[tx] = 1
@@ -374,16 +373,18 @@ class Responder:
# the responder.
checked_txs = {}
for uuid, tracker_data in self.trackers.items():
if tracker_data.get("penalty_txid") not in self.unconfirmed_txs:
if tracker_data.get("penalty_txid") not in checked_txs:
tx = self.carrier.get_transaction(tracker_data.get("penalty_txid"))
# Avoiding dictionary changed size during iteration
for uuid in list(self.trackers.keys()):
penalty_txid = self.trackers[uuid].get("penalty_txid")
if penalty_txid not in self.unconfirmed_txs:
if penalty_txid not in checked_txs:
tx = self.carrier.get_transaction(penalty_txid)
else:
tx = checked_txs.get(tracker_data.get("penalty_txid"))
tx = checked_txs.get(penalty_txid)
if tx is not None:
confirmations = tx.get("confirmations")
checked_txs[tracker_data.get("penalty_txid")] = tx
checked_txs[penalty_txid] = tx
if confirmations is not None and confirmations >= IRREVOCABLY_RESOLVED:
completed_trackers.append(uuid)
@@ -464,7 +465,8 @@ class Responder:
"""
for uuid in self.trackers.keys():
# Avoiding dictionary changed size during iteration
for uuid in list(self.trackers.keys()):
tracker = TransactionTracker.from_dict(self.db_manager.load_responder_tracker(uuid))
# First we check if the dispute transaction is known (exists either in mempool or blockchain)