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Author SHA1 Message Date
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
dailzandSisyphus 59de99ca0b update WAL recovery edge case design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-12 10:11:39 +08:00
dailzandSisyphus 2c58db5105 update WAL published sequence design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-12 09:24:09 +08:00
dailzandSisyphus 8f154b2157 update WAL manifest repair boundary design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-12 09:15:27 +08:00
dailzandSisyphus 40b6791fea update WAL recovery segment continuity design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-12 08:52:34 +08:00
dailzandSisyphus 8e97a5620d update WAL segment size design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-12 08:39:15 +08:00
dailzandSisyphus dde7f38af0 update WAL batch resource limit design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-11 20:26:51 +08:00
dailzandSisyphus 7557c38e6c update WAL tail truncation recovery design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-11 20:17:29 +08:00
dailzandSisyphus c02bbc57e3 update WAL current authority design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-11 20:09:39 +08:00
dailzandSisyphus 5e9836c931 update MemTable arena reservation design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-11 19:53:17 +08:00
dailzandSisyphus b037c1a382 update MemTable publish ordering design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-11 18:29:47 +08:00
dailzandSisyphus a98c144c51 update WAL write failure design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-11 17:36:14 +08:00
dailzandSisyphus f6a2cd979e update WAL segment boundary design 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-11 17:33:39 +08:00
dailzandSisyphus 0047d52541 update design doc 
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
 2026-06-09 11:57:19 +08:00
dailz 5c3adb3390 design doc 2026-06-06 22:18:48 +08:00
dailz 0e7f41d600 first commit 2026-06-06 22:16:50 +08:00