Merge pull request #44 from frankurcrazy/fix/bsd-address-in-use

fix: set REUSEPORT on BSD systems

Author: andreikop

Diff for: wsdiscovery/threaded.py

@@ -8,6 +8,7 @@
 import struct
 import threading
 import selectors
+import platform
 
 from .udp import UDPMessage
 from .actions import *
@@ -106,6 +107,9 @@ def _createMulticastInSocket():
         sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
         sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
 
+        if platform.system() in ["Darwin", "FreeBSD"]:
+            sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
+
         sock.bind(('', MULTICAST_PORT))
         sock.setblocking(0)