Initial commit

[ta/monitoring.git] / src / keepalivedmonitor.py

diff --git a/src/keepalivedmonitor.py b/src/keepalivedmonitor.py
new file mode 100755 (executable)
index 0000000..92e7ad4
--- /dev/null
+++ b/src/keepalivedmonitor.py
@@ -0,0 +1,58 @@
+#! /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...")