dailz/go-kv
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0fe1530e25c6e8c63c3c8e15068c43dd55e56350
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2 Commits
Author SHA1 Message Date
dailz 0fe1530e25 feat: integrate DB with Open/Close/Put/Delete/Get 
- Add db.go with DB struct: Open/Close/Put/Delete/Get/GetDurableSequence/IsWriteStopped
- Add db_test.go with lifecycle, put/get, delete, recovery, and corruption tests
- Extract sentinel errors to errkit/ leaf package to break import cycle (wal -> go_kv)
- Update wal/sequence.go, wal/writer.go to import errkit instead of root package
- Root errors.go re-exports from errkit for backward compatibility

Phase 1 Wave 4d complete (T19).
 2026-06-12 14:10:56 +08:00
dailz fe2d4fc5f0 feat(wal): implement WAL writer with group commit and recovery batch replay 
- wal/commit_queue.go: bounded buffered channel for write requests
- wal/writer.go: single-goroutine main loop implementing 11-step write flow
  with group commit, sequence allocation, MemTable publish/abort, write-stopped
- wal/recovery.go: BatchReplayer interface, ReplayBatch, ReplaySegmentFile,
  RecoverFromSegments with fragment reassembly and tail corruption handling
- Comprehensive tests for all modules, all pass with -race
 2026-06-12 13:57:31 +08:00