dailz/go-kv
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
23 Commits 1 Branch 0 Tags
0fe1530e25c6e8c63c3c8e15068c43dd55e56350
Commit Graph
8 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 294ab9181f feat(wal): implement recovery orchestrator with tail truncation 
- wal/recover.go: top-level Recover() function that orchestrates scan + replay + truncation
  Reads MANIFEST/CURRENT for recovery segment ID, handles tail corruption by truncating
- Comprehensive tests for empty dir, full flow, tail corruption, and MANIFEST updates
- All tests pass with -race
 2026-06-12 14:02:19 +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
dailz 08960a9bcf feat(wal): implement segment rotation, recovery scanner, and record parser 
- wal/segment_manager.go: segment lifecycle with rotation at batch boundaries
- wal/scanner.go: segment discovery, ordering, and continuity validation
- wal/record_parser.go: block-level physical record parsing with tail corruption detection
- Comprehensive tests for all modules, all pass with -race
 2026-06-12 13:50:03 +08:00
dailz 349063968b feat(wal,memtable): implement segment writer, block writer, and MemTable 
- wal/block_writer.go: 32KB block buffer with padding and flush
- wal/segment_writer.go: WAL segment file with durable-ready protocol
- memtable/memtable.go: Arena+SkipList wrapper with publish/abort semantics
- Comprehensive tests for all modules, all pass with -race
 2026-06-12 13:43:24 +08:00
dailz 3c0e3b14ff feat(memtable): implement SkipList with lock-free reads 
- memtable/skiplist.go: heap-backed SkipList with atomic.Pointer next pointers
- Mutex-protected writes, lock-free reads with release/acquire ordering
- Copy-on-insert and copy-on-return for key/value safety
- Forward iterator that skips pending entries
- Comprehensive tests: ordered insert, overwrite, pending hidden, concurrent -race
 2026-06-12 13:34:02 +08:00
dailz fede839eb6 feat(wal): implement batch codec, validation, and Arena allocator 
- wal/batch.go: WalBatch encode/decode with FragmentCollector state machine
- wal/validate.go: ValidateBatchLimits with checked arithmetic
- memtable/arena.go: Arena allocator with 8-byte alignment and mutex
- Comprehensive tests for all modules, all pass with -race
 2026-06-12 13:27:17 +08:00
dailz cf913b1d52 feat: initialize project structure and error types 
- go.mod with github.com/dailz/go-kv, Go 1.26.3, testify
- config/config.go with WalConfig, Validate() with checked arithmetic
- errors.go with sentinel errors (ErrCommitUnknown, ErrWriteStopped, etc.)
- wal/constants.go with all WAL format constants and enums
- wal/header.go with WAL File Header encode/decode (CRC32 IEEE)
- wal/record.go with Physical Record codec, block boundary, SplitIntoRecords
- wal/entry.go with WAL Entry codec (varint keys/values, OpType, ValueKind)
- wal/sequence.go with SequenceManager (atomic, CAS, overflow-safe)
- manifest/manifest.go with MANIFEST stub (Load/Save atomic)
- manifest/current.go with CURRENT file (WriteCurrent/ReadCurrent)
- Comprehensive tests for all modules
- .golangci.yml configuration
 2026-06-12 13:23:27 +08:00