Hi folks, I have a need in a network data distribution application to send out data to folks who want it using the protocol of their choice. I´d like it to support a variety of protocols and I don´t want to implement any of them :-) http, ftp (via ftplib) , https (dunno how yet), ssl, ssh, sftp (via paramiko)
The thing is... I want rate-limiting so that in the case of a failure of a single client I don´t penalize the other clients, or if my server (which is acting as a client pushing to remote servers.) goes down, it doesn´t saturate the link when it comes back. So I want to have all the protocols limit the number of bytes they send per second. It looks like the easiest way to do this is to dive into socket.py... and look! it says: # Wrapper module for _socket, providing some additional facilities # implemented in Python. note the ´additional facilities implemented in python´ ... so we just add logic to: -- add a ´maxrate´ argument to the constructor and/or an attribute to modify the setting... -- tally bytes, and time, and know when we are going ´too fast´ -- when too fast.. in the ´flush´ routine, in the synchronous case, sleep for the correct time to come back under budget. in the async, return without writing. -- do something similar for reading. Anybody think this would be fun? -- http://mail.python.org/mailman/listinfo/python-list
