1 files changed, 56 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/examples/pubsub/topics_sub.py b/external_libs/python/pyzmq-14.7.0/examples/pubsub/topics_sub.py
new file mode 100644
index 00000000..4a61fb55
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+++ b/external_libs/python/pyzmq-14.7.0/examples/pubsub/topics_sub.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+"""Simple example of publish/subscribe illustrating topics.
+
+Publisher and subscriber can be started in any order, though if publisher
+starts first, any messages sent before subscriber starts are lost.  More than
+one subscriber can listen, and they can listen to  different topics.
+
+Topic filtering is done simply on the start of the string, e.g. listening to
+'s' will catch 'sports...' and 'stocks'  while listening to 'w' is enough to
+catch 'weather'.
+"""
+
+#-----------------------------------------------------------------------------
+#  Copyright (c) 2010 Brian Granger, Fernando Perez
+#
+#  Distributed under the terms of the New BSD License.  The full license is in
+#  the file COPYING.BSD, distributed as part of this software.
+#-----------------------------------------------------------------------------
+
+import sys
+import time
+
+import zmq
+import numpy
+
+def main():
+    if len (sys.argv) < 2:
+        print 'usage: subscriber <connect_to> [topic topic ...]'
+        sys.exit (1)
+
+    connect_to = sys.argv[1]
+    topics = sys.argv[2:]
+
+    ctx = zmq.Context()
+    s = ctx.socket(zmq.SUB)
+    s.connect(connect_to)
+
+    # manage subscriptions
+    if not topics:
+        print "Receiving messages on ALL topics..."
+        s.setsockopt(zmq.SUBSCRIBE,'')
+    else:
+        print "Receiving messages on topics: %s ..." % topics
+        for t in topics:
+            s.setsockopt(zmq.SUBSCRIBE,t)
+    print
+    try:
+        while True:
+            topic, msg = s.recv_multipart()
+            print '   Topic: %s, msg:%s' % (topic, msg)
+    except KeyboardInterrupt:
+        pass
+    print "Done."
+
+if __name__ == "__main__":
+    main()