Initial commit of the vm-pollerd-proxy

src/vm-pollerd-proxy

@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2013 Marin Atanasov Nikolov <dnaeon@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer
+#    in this position and unchanged.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""
+vm-pollerd-proxy is a ZeroMQ proxy that load balances requests between clients and workers.
+
+TODO: Better document this module
+"""
+
+import zmq
+
+def main():
+    context = zmq.Context()
+
+    # Socket facing clients
+    frontend = context.socket(zmq.ROUTER)
+    frontend.bind("tcp://*:11555")
+
+    # Socket facing workers
+    backend = context.socket(zmq.DEALER)
+    backend.bind("tcp://*:11556")
+
+    # Run the proxy 
+    zmq.proxy(frontend, backend)
+
+    # Never reached...
+    frontend.close()
+    backend.close()
+    context.term()
+
+if __name__ == '__main__':
+    main()