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fix #3530 added error log when tcp port is already in use

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AlessandroSpallina 2022-03-22 17:17:41 +01:00
parent ad489ed606
commit f01cf98d62
1 changed files with 8 additions and 0 deletions
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8
lbry/blob_exchange/server.py
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@ -1,6 +1,7 @@
import asyncio import asyncio
import binascii import binascii
import logging import logging
import socket
import typing import typing
from json.decoder import JSONDecodeError from json.decoder import JSONDecodeError
from lbry.blob_exchange.serialization import BlobResponse, BlobRequest, blob_response_types from lbry.blob_exchange.serialization import BlobResponse, BlobRequest, blob_response_types
@ -167,6 +168,13 @@ class BlobServer:
raise Exception("already running") raise Exception("already running")
async def _start_server(): async def _start_server():
# checking if the port is in use
# thx https://stackoverflow.com/questions/2470971/fast-way-to-test-if-a-port-is-in-use-using-python/52872579#52872579
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
if s.connect_ex(('localhost', port)) == 0:
# the port is already in use!
log.error("Failed to bind TCP {}:{}".format(interface, port))
server = await self.loop.create_server( server = await self.loop.create_server(
lambda: self.server_protocol_class(self.loop, self.blob_manager, self.lbrycrd_address, lambda: self.server_protocol_class(self.loop, self.blob_manager, self.lbrycrd_address,
self.idle_timeout, self.transfer_timeout), self.idle_timeout, self.transfer_timeout),