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POIs multicast appropriate for one to many streaming within a localhost?
 

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    <p>I have a central data feed that I want to redistribute to many clients. The data feed produces approx. 1.8 kB/s. Currently I'm writing the feed to a file and each client reads off the end of the file. Something about this just seems wrong. Here is pseudo code for what I have now...</p> <p>The feed:</p> <pre><code>o = open('feed.txt','a',0) #no buffering, maybe line buffer would be better while 1: data = feed.read(8192) data = parse_data(data) o.write(data) time.sleep(0.01) </code></pre> <p>The server (each client connects in a new thread):</p> <pre><code>feed = open('feed.txt','r') feed.seek(-1024,2) while 1: dat = feed.read(1024) if len(dat)==0: # For some reason if the end of the file is reached # i can't read any more data, even there is more. # some how backing off seems to fix the problem. self.feed.seek(-1024,2) self.feed.read(1024) buffer += dat idx = buffer.rfind('\n') if idx&gt;0: data = buffer[:idx] buffer = buffer[idx+1:] for msg in data.split('\n'): client.send(msg) time.sleep(0.01) </code></pre> <p>What I'd like to do is just replace the file with a socket and write the messages directly to multicast packets. Any time a new client connects to the server I just spin up a new thread and start listening for the multicast packets. Are there any standard design patterns to handle this case?</p>
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