Use set for efficient retry status code filtering #266
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This PR improves the implementation of
ClientRetryPolicyby replacing list-based membership checks with a set when computing retryable HTTP status codes.Previously, the retry status code list was generated by checking membership against a list of safe status codes, resulting in repeated O(n) lookups for 999 times. This change introduces a set for the safe status codes, enabling O(1) average-time membership checks while preserving the existing behavior and semantics.
The issue was identified during an ongoing research project.