leno23 opened a new pull request, #3388: URL: https://github.com/apache/dubbo-go/pull/3388
### Description Refs #3248. This PR continues the extension safety cleanup by moving protocol-level graceful shutdown callbacks from a hand-rolled `map + RWMutex` to the shared generic `Registry[T]` abstraction: - adds `Registry.RegisterIfAbsent` for atomic duplicate-preserving registration - uses `Registry[GracefulShutdownCallback]` for graceful shutdown callback lookup/unregister/snapshot - keeps the existing duplicate registration behavior: the first callback remains registered and later duplicates are ignored with a warning ### Validation - `go test ./common/extension` - `go test -race ./common/extension` - `make fmt` - `git diff --check` ### Checklist - [x] Code has passed local testing - [x] I have added tests that prove my fix is effective or that my feature works -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
