feat(pool): introduce tombstone-based deletion with soft-delete mechanism

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Refactored the pool implementation to use a tombstone-based deletion strategy
instead of immediate removal. This allows correct logging "reload"
instead of "removed" + "added" when an item is quickly deleted
and re-added within a short time window.

Changes:
- Items are now marked as tombstones upon deletion and retained for 1 second
- Added `PurgeExpiredTombs()` method for cleanup of expired tombstones
- Updated `Get`, `Iter`, and `Slice` to skip tombstoned entries
- Updated `Del` and `DelKey` to cleanup tombstones when exceeding threshold
- `AddIfNotExists` can now "reload" recently deleted items within the TTL
- Added tomb counter for tracking active tombstones and triggering purge

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yusing

2026-01-21 23:44:56 +08:00

parent 732376328c

commit 4fa2ef41aa

1 changed files with 1 additions and 1 deletions

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goutils

Submodule goutils updated: 92af8e0866...bc9e96ebf3