(extension): add blocking memorylimiter extension #172
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This is a followup to #157 and adds a
blockingmemorylimiterextension
, that only helps memory limit unary RPC's.This component provides a UnaryServerInterceptor that intercepts incoming unary RPC's, calculates the size of the request, and tries to acquire bytes from a semaphore. If we have already reached our memorylimit, the request will block until other requests complete and release bytes from the semaphore or the request times out.
Resolves #173 for unary RPC's but have not fully determined the solution for streaming RPC's as it is not straightforward.