Show HN: SafePool – Type-safe object pooling for Go

6 points

6 months ago

Frequent memory allocations can be costly in Go. Go's sync.Pool helps with object reuse but isn't type-safe and can introduce bugs. You need type assertions, and it's easy to accidentally return objects twice or forget to return them at all.

SafePool provides type safety with Go generics, eliminating the need for type assertions and making pool usage safer and clearer.

For objects that need to live across function boundaries, we added PoolManager. It tracks all objects obtained from pools and ensures they're all returned when the manager is cleaned up, preventing leaks across function calls.

We built this after hitting sync.pool issues at Oodle AI, where efficient memory management is critical for processing high-volume telemetry data.

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