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feat: add GenericLruCache, ConcurrentHashMap, MurmurHash, and Precond… - #21
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leaves12138 merged 1 commit intoMay 29, 2026
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Thanks for the PR. I reviewed the new GenericLruCache, ConcurrentHashMap, MurmurHashUtils, Preconditions, tests, and license/notice updates. I did not find any blocking issue. One minor non-blocking suggestion: Preconditions can probably include only fmt/format.h instead of fmt/base.h + fmt/core.h + fmt/format.h + fmt/ranges.h, unless the extra headers are intentionally needed.
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Purpose
No Linked issue.
Introduce additional common utility modules to the apache/paimon-cpp codebase, including a generic LRU cache, concurrent hash map, murmur hash utilities, and precondition checks.
Tests
generic_lru_cache_test.cpp — LRU eviction, TTL expiration, concurrent access
concurrent_hash_map_test.cpp — Insert, lookup, delete, and multi-threaded correctness
murmurhash_utils_test.cpp — Hash computation correctness and consistency
preconditions_test.cpp — CheckState and CheckArgument validation
API and Format
No API or format changes.
Documentation
No documentation changes.
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