1 files changed, 64 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/examples/pubsub/topics_pub.py b/external_libs/python/pyzmq-14.7.0/examples/pubsub/topics_pub.py
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index 00000000..73b3d1c5
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+++ b/external_libs/python/pyzmq-14.7.0/examples/pubsub/topics_pub.py
@@ -0,0 +1,64 @@
+#!/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
+#
+#  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 itertools
+import sys
+import time
+
+import zmq
+
+def main():
+    if len (sys.argv) != 2:
+        print 'usage: publisher <bind-to>'
+        sys.exit (1)
+
+    bind_to = sys.argv[1]
+
+    all_topics = ['sports.general','sports.football','sports.basketball',
+                  'stocks.general','stocks.GOOG','stocks.AAPL',
+                  'weather']
+
+    ctx = zmq.Context()
+    s = ctx.socket(zmq.PUB)
+    s.bind(bind_to)
+
+    print "Starting broadcast on topics:"
+    print "   %s" % all_topics
+    print "Hit Ctrl-C to stop broadcasting."
+    print "Waiting so subscriber sockets can connect..."
+    print
+    time.sleep(1.0)
+
+    msg_counter = itertools.count()
+    try:
+        for topic in itertools.cycle(all_topics):
+            msg_body = str(msg_counter.next())
+            print '   Topic: %s, msg:%s' % (topic, msg_body)
+            s.send_multipart([topic, msg_body])
+            # short wait so we don't hog the cpu
+            time.sleep(0.1)
+    except KeyboardInterrupt:
+        pass
+
+    print "Waiting for message queues to flush..."
+    time.sleep(0.5)
+    print "Done."
+
+if __name__ == "__main__":
+    main()