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Deserialize mempool txs in a thread

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This commit is contained in:
Neil Booth 2018-07-22 22:18:54 +08:00
parent 9bd9476a54
commit 4b3ceff0d2
1 changed files with 17 additions and 12 deletions
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29
electrumx/server/mempool.py
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@ -175,22 +175,27 @@ class MemPool(object):
'''Process the dictionary of raw transactions and return a dictionary '''Process the dictionary of raw transactions and return a dictionary
of updates to apply to self.txs. of updates to apply to self.txs.
''' '''
script_hashX = self.coin.hashX_from_script def deserialize_txs():
deserializer = self.coin.DESERIALIZER script_hashX = self.coin.hashX_from_script
deserializer = self.coin.DESERIALIZER
# Deserialize each tx and put it in a pending list # Deserialize each tx and put it in a pending list
for tx_hash, raw_tx in raw_tx_map.items(): for tx_hash, raw_tx in raw_tx_map.items():
tx, tx_size = deserializer(raw_tx).read_tx_and_vsize() tx, tx_size = deserializer(raw_tx).read_tx_and_vsize()
# Convert the tx outputs into (hashX, value) pairs # Convert the tx outputs into (hashX, value) pairs
txout_pairs = [(script_hashX(txout.pk_script), txout.value) txout_pairs = [(script_hashX(txout.pk_script), txout.value)
for txout in tx.outputs] for txout in tx.outputs]
# Convert the tx inputs to ([prev_hex_hash, prev_idx) pairs # Convert the tx inputs to ([prev_hex_hash, prev_idx) pairs
txin_pairs = [(hash_to_hex_str(txin.prev_hash), txin.prev_idx) txin_pairs = [(hash_to_hex_str(txin.prev_hash), txin.prev_idx)
for txin in tx.inputs] for txin in tx.inputs]
pending.append((tx_hash, txin_pairs, txout_pairs, tx_size)) pending.append((tx_hash, txin_pairs, txout_pairs, tx_size))
# Do this potentially slow operation in a thread so as not to
# block
await self.tasks.run_in_thread(deserialize_txs)
# The transaction inputs can be from other mempool # The transaction inputs can be from other mempool
# transactions (which may or may not be processed yet) or are # transactions (which may or may not be processed yet) or are