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copied!<p>Depends. Here are some possibilities:</p> <p>I'm assuming </p> <p>Approach 1. You have a list of commands to send the server, and for some reason can't do them all at once. In that case send a new one as the previous answer returns:</p> <pre><code>class proto(parentProtocol): def stringReceived(self, data): self.handle_server_response(data) next_command = self.command_queue.pop() # do stuff </code></pre> <p>Approach 2. What you send to the server is based on what the server sends you:</p> <pre><code>class proto(parentProtocol): def stringReceived(self, data): if data == "this": self.sendString("that") elif data == "foo": self.sendString("bar") # and so on </code></pre> <p>Approach 3. You don't care what the server sends to, you just want to periodically send some commands:</p> <pre><code>class proto(parentProtocol): def callback(self): next_command = self.command_queue.pop() # do stuff def connectionMade(self): from twisted.internet import task self.task_id = task.LoopingCall(self.callback) self.task_id.start(1.0) </code></pre> <p>Approach 4: Your edit now mentions triggering from another thread. Feel free to check the twisted documentation to find out if <code>proto.sendString</code> is threadsafe. You may be able to call it directly, but I don't know. Approach 3 <em>is</em> threadsafe though. Just fill the queue (which is threadsafe) from another thread.</p> <p>Basically you can store any amount of state in your protocol; it will stay around until you are done. The you either send commands to the server as a response to it's messages to you, or you set up some scheduling to do your stuff. Or both.</p>

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