Performance improvements and refactor of Ratelimiter (#7595)

While working on https://github.com/matrix-org/synapse/issues/5665 I found myself digging into the `Ratelimiter` class and seeing that it was both:

* Rather undocumented, and
* causing a *lot* of config checks

This PR attempts to refactor and comment the `Ratelimiter` class, as well as encourage config file accesses to only be done at instantiation. 

Best to be reviewed commit-by-commit.
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Andrew Morgan 2020-06-05 10:47:20 +01:00 committed by GitHub
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commit f4e6495b5d
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19 changed files with 325 additions and 233 deletions

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@ -43,7 +43,7 @@ class FederationRateLimiter(object):
self.ratelimiters = collections.defaultdict(new_limiter)
def ratelimit(self, host):
"""Used to ratelimit an incoming request from given host
"""Used to ratelimit an incoming request from a given host
Example usage: