examples/bench: Try to remove UNIX socket file before binding to it

Author: 1st1

examples/bench/server.py

@@ -2,6 +2,7 @@
 import asyncio
 import gc
 import uvloop
+import os.path
 import socket as socket_module
 
 from socket import *
@@ -102,6 +103,8 @@ async def print_debug(loop):
     if args.addr.startswith('file:'):
         unix = True
         addr = args.addr[5:]
+        if os.path.exists(addr):
+            os.remove(addr)
     else:
         addr = args.addr.split(':')
         addr[1] = int(addr[1])