dash/test/functional/p2p_net_deadlock.py
Kittywhiskers Van Gogh ac94de23ae
merge bitcoin#28287: add sendmsgtopeer rpc and a test for net-level deadlock situation
`random_bytes()` is introduced in bitcoin#25625 but the function def
alone doesn't warrant a full backport, so we'll only implement the
section relevant to this PR.
2024-10-02 08:31:49 +00:00

38 lines
1.2 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (c) 2023-present The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
import threading
from test_framework.messages import MAX_PROTOCOL_MESSAGE_LENGTH
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import random_bytes
class NetDeadlockTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 2
def run_test(self):
node0 = self.nodes[0]
node1 = self.nodes[1]
self.log.info("Simultaneously send a large message on both sides")
rand_msg = random_bytes(MAX_PROTOCOL_MESSAGE_LENGTH).hex()
thread0 = threading.Thread(target=node0.sendmsgtopeer, args=(0, "unknown", rand_msg))
thread1 = threading.Thread(target=node1.sendmsgtopeer, args=(0, "unknown", rand_msg))
thread0.start()
thread1.start()
thread0.join()
thread1.join()
self.log.info("Check whether a deadlock happened")
self.nodes[0].generate(1)
self.sync_blocks()
if __name__ == '__main__':
NetDeadlockTest().main()