+#! /usr/bin/python
+
+# Copyright 2019 Nokia
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import socket
+import select
+import os
+import errno
+import sys
+
+if __name__ == '__main__':
+ host = socket.gethostname()
+ ip = socket.gethostbyname(host)
+ port = int(sys.argv[1])
+
+ print("Starting listening to port %d" % port)
+
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+ s.setblocking(0)
+ s.bind((ip, port))
+ s.listen(1)
+ inputs = [s]
+ while True:
+ try:
+ readable, _, _ = select.select(inputs, [], [])
+ for f in readable:
+ if f is s:
+ client, address = s.accept()
+ client.setblocking(0)
+ inputs.append(client)
+ #print("Accepted connection from %r, total inputs %d" % (address, len(inputs)))
+ else:
+ try:
+ result = f.recv()
+ if not result:
+ inputs.remove(f)
+ except Exception as exp:
+ inputs.remove(f)
+ except (SystemExit, KeyboardInterrupt):
+ break
+ except select.error as ex:
+ if ex.args[0] == errno.EINTR:
+ break
+
+ print("Stopping...")