[tor-commits] [ooni-probe/master] Outline the rate limiting abstract class (#7852)

[isis@xxxxxxxxxxxxxx]

commit 6f5da8e07d7cbc357ba4a15f7a65d3cf57925a11
Author: Arturo Filastò <art@xxxxxxxxx>
Date:   Thu Jan 10 16:20:29 2013 +0100

    Outline the rate limiting abstract class (#7852)
    
    Classes that impose constraints on timeouts and issue rate go here.
---
 ooni/ratelimiting.py |   68 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 68 insertions(+), 0 deletions(-)

diff --git a/ooni/ratelimiting.py b/ooni/ratelimiting.py
new file mode 100644
index 0000000..986cf82
--- /dev/null
+++ b/ooni/ratelimiting.py
@@ -0,0 +1,68 @@
+class RateLimiter(object):
+    """
+    The abstract class that imposes limits over how measurements are scheduled,
+    how retries are handled and when we should be giving up on a certain
+    measurement.
+    """
+    @property
+    def timeout(self):
+        """
+        After what timeout a certain test should be considered to have failed
+        and attempt a retry if the maximum retry has not been reached.
+        """
+        raise NotImplemented
+
+    @property
+    def maxTimeout(self):
+        """
+        This is the maximum value that timeout can reach.
+        """
+        raise NotImplemented
+
+    @property
+    def concurrency(self):
+        """
+        How many concurrent requests should happen at the same time.
+        """
+        raise NotImplemented
+
+    def timedOut(self, measurement):
+        raise NotImplemented
+
+    def completed(self, measurement):
+        raise NotImplemented
+
+    def failed(self, measurement):
+        raise NotImplemented
+
+class StaticRateLimiter(RateLimiter):
+    """
+    This is a static ratelimiter that returns constant values.
+    """
+    @property
+    def timeout(self):
+        return 10
+
+    @property
+    def maxTimeout(self):
+        return 5 * 60
+
+    @property
+    def concurrency(self):
+        return 10
+
+    def timedOut(self, measurement):
+        pass
+
+    def completed(self, measurement):
+        pass
+
+    def failed(self, measurement, failure):
+        pass
+
+class TimeoutRateLimiter(RateLimiter):
+    pass
+
+class BandwidthRateLimiter(RateLimiter):
+    pass
+



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