642f4bb3b1
Motivation: PooledByteBufAllocator's thread local cache and ReferenceCountUtil.releaseLater() are in need of a way to run an arbitrary logic when a certain thread is terminated. Modifications: - Add ThreadDeathWatcher, which spawns a low-priority daemon thread that watches a list of threads periodically (every second) and invokes the specified tasks when the associated threads are not alive anymore - Start-stop logic based on CAS operation proposed by @tea-dragon - Add debug-level log messages to see if ThreadDeathWatcher works Result: - Fixes #2519 because we don't use GlobalEventExecutor anymore - Cleaner code |
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pom.xml |