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POReading socket buffer using asyncore
 

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    <p>I'm new to Python (I have been programming in Java for multiple years now though), and I am working on a simple socket-based networking application (just for fun). The idea is that my code connects to a remote TCP end-point and then listens for any data being pushed from the server to the client, and perform some parsing on this.</p> <p>The data being pushed from server -> client is UTF-8 encoded text, and each line is delimited by <code>CRLF</code> (<code>\x0D\x0A</code>). You probably guessed: the idea is that the client connects to the server (until cancelled by the user), and then reads and parses the lines as they come in.</p> <p>I've managed to get this to work, however, I'm not sure that I'm doing this quite the right way. So hence my actual questions (code to follow):</p> <ol> <li>Is this the right way to do it in Python (ie. is it really this simple)?</li> <li>Any tips/tricks/useful resources (apart from the reference documentation) regarding buffers/<code>asyncore</code>?</li> </ol> <p>Currently, the data is being read and buffered as follows:</p> <pre><code>def handle_read(self): self.ibuffer = b"" while True: self.ibuffer += self.recv(self.buffer_size) if ByteUtils.ends_with_crlf(self.ibuffer): self.logger.debug("Got full line including CRLF") break else: self.logger.debug("Buffer not full yet (%s)", self.ibuffer) self.logger.debug("Filled up the buffer with line") print(str(self.ibuffer, encoding="UTF-8")) </code></pre> <p>The <code>ByteUtils.ends_with_crlf</code> function simply checks the last two bytes of the buffer for <code>\x0D\x0A</code>. The first question is the main one (answer is based on this), but any other ideas/tips are appreciated. Thanks.</p>
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    1. COI was curious to what ByteUtils in your code where, so I googled "python ByteUtils"...and google gave me this thread - 15 minutes after its creation! Thats impressive :)
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