sync: fetch proofs and txs in batches
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parent
cab8981716
commit
7bdcaa6737
2 changed files with 13 additions and 6 deletions
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@ -24,7 +24,7 @@ class MockNetwork:
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return defer.succeed(self.history)
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def get_merkle(self, txid, height):
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return {'merkle': ['abcd01'], 'pos': 1}
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return defer.succeed({'merkle': ['abcd01'], 'pos': 1})
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def get_transaction(self, tx_hash):
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self.get_transaction_called.append(tx_hash)
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@ -203,11 +203,9 @@ class BaseLedger(metaclass=LedgerRegistry):
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working_branch = double_sha256(combined)
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return hexlify(working_branch[::-1])
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@defer.inlineCallbacks
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def validate_transaction_and_set_position(self, tx, height):
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def validate_transaction_and_set_position(self, tx, height, merkle):
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if not height <= len(self.headers):
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return False
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merkle = yield self.network.get_merkle(tx.id, height)
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merkle_root = self.get_root_of_merkle_tree(merkle['merkle'], merkle['pos'], tx.hash)
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header = self.headers[height]
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tx.position = merkle['pos']
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@ -353,6 +351,15 @@ class BaseLedger(metaclass=LedgerRegistry):
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def update_history(self, address):
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remote_history = yield self.network.get_history(address)
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local_history = yield self.get_local_history(address)
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proofs = {
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entry['tx_hash']: self.network.get_merkle(entry['tx_hash'], entry['height'])
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for index, entry in enumerate(remote_history)
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if index >= len(local_history) or (entry['tx_hash'], entry['height']) != local_history[index]
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}
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network_txs = {key: self.network.get_transaction(key) for key in proofs.keys()}
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yield defer.DeferredList(list(proofs.values()) + list(network_txs.values()))
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proofs = {key: value.result for key, value in proofs.items()}
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network_txs = {key: value.result for key, value in network_txs.items()}
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synced_history = StringIO()
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for i, (hex_id, remote_height) in enumerate(map(itemgetter('tx_hash', 'height'), remote_history)):
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@ -372,14 +379,14 @@ class BaseLedger(metaclass=LedgerRegistry):
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tx = yield self.db.get_transaction(txid=hex_id)
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save_tx = None
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if tx is None:
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_raw = yield self.network.get_transaction(hex_id)
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_raw = network_txs[hex_id]
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tx = self.transaction_class(unhexlify(_raw))
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save_tx = 'insert'
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tx.height = remote_height
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if remote_height > 0 and (not tx.is_verified or tx.position == -1):
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yield self.validate_transaction_and_set_position(tx, remote_height)
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self.validate_transaction_and_set_position(tx, remote_height, proofs[hex_id])
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if save_tx is None:
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save_tx = 'update'
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