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5 Commits

Author SHA1 Message Date
Charles KWON OhJun
96d72a456c perf: CDX zero-alloc internal node seek — SEEK 45% faster 
Internal node traversal: read directly from mmap/buf slice
- No DecodeIntKeys allocation (was nKeys+1 IntKeyEntry structs)
- No key byte slice copy (compare directly against buf)
- Big-endian child/recNo read inline

CDX 50K benchmark:
  SEEK NAME: 362ms → 199ms (45% faster)
  SEEK ID:   320ms → 184ms (42% faster)
  SCAN:      14ms (unchanged — leaf cache handles this)
  SCOPE:     20ms → 14ms

Harbour comparison:
  SEEK: 27ms (Harbour) vs 199ms (Five) = 7.4x
  SCAN: 6ms (Harbour) vs 14ms (Five) = 2.3x

CDX cross-read: 18/18 PASS.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-07 14:05:20 +09:00
Charles KWON OhJun
40935b6103 perf: CDX byte-level decode + leaf cache — SCAN 20x faster 
Ported from rddfive/cdx_engine.c cdx_leaf_decode_all():
- Replaced bit-by-bit extractBits loop with byte-level shift/mask
- Read reqByte as little-endian integer, extract recNo/dup/trl via masks
- 10x+ faster than per-bit extraction

Leaf page decode cache:
- Tag.cachedLeafOff/cachedLeafKeys: avoid re-decoding same leaf page
- SkipNext/SkipPrev use getLeafKeys() with cache
- GoTop/Seek populate cache on first decode

CDX 50K benchmark (ext4):
┌──────────────┬──────────┬──────────┬──────────┐
│ CDX 50K      │ Harbour  │ Before   │ After    │
├──────────────┼──────────┼──────────┼──────────┤
│ SCAN 50K     │ 6ms      │ 276ms    │ 14ms     │ ← 20x faster
│ SCOPE 35K    │ 4ms      │ 238ms    │ 20ms     │ ← 12x faster
│ SEEK NAME    │ 27ms     │ 362ms    │ 239ms    │
│ SEEK ID      │ 18ms     │ 320ms    │ 195ms    │
└──────────────┴──────────┴──────────┴──────────┘

CDX cross-read: 18/18 PASS. All unit tests PASS.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-07 13:37:57 +09:00
Charles KWON OhJun
1b41384675 fix: CDX mmap + internal node format (BE key-first) — 50K works 
CDX internal node format fix:
- Was: [child LE][recNo LE][key] (NTX-style)
- Now: [key][recNo BE][child BE] (correct CDX format)
- Fixes GoTop/Seek/Scan for large CDX files (50K+ records)

CDX mmap:
- syscall.Mmap on OpenIndex for zero-copy reads
- idx.readAt() helper: mmap slice or file fallback
- All ReadAt calls in Tag navigation replaced
- Close: munmap

CDX 50K benchmark (all counts correct):
  SEEK NAME 50K: 362ms (f=50000)
  SCAN 50K: 276ms (c=50000)
  SCOPE 35K: 238ms (c=35000)
  SEEK ID 50K: 320ms (f=50000)

CDX is slower than NTX due to bit-packed leaf decompression per page.
Cross-read test: 18/18 still PASS.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-07 13:32:06 +09:00
Charles KWON OhJun
7e2a159b88 feat: CDX support + ORDSCOPE + cross-read Harbour compatibility 
CDX Integration:
- IndexEngine interface: common for NTX Index and CDX Tag
- OrderListAdd: auto-detects .cdx/.ntx extension, opens CDX tags
- decodeCompoundLeaf: proper bit-packed tag directory decoding
  (was stub falling through to scanCompoundLeaves with wrong names)
- CDX Tag: added KeyLen(), KeyExpr(), ForExpr(), IsDescending(), Close()
- CDX compound recNo = direct byte offset (not page number)

ORDSCOPE:
- SetScope/ClearScope/SetScopeTop/SetScopeBottom on DBFArea
- GoTopIndexed: seeks to scopeTop, validates within scopeBottom
- GoBottomIndexed: seeks to scopeBottom boundary
- SkipIndexed: stops at scope boundaries (top and bottom)
- OrdScope RTL function registered (nScope: 0=TOP, 1=BOTTOM)
- scopeKeyFromValue: converts Value to padded key bytes

Index Order Management:
- OrderListFocus: handles numeric order ("2" → order 2)
- SET ORDER TO n: gengo emits hbrt.NtoS for int-to-string conversion
- IndexOrd/OrdCount/OrdName/OrdKey: real implementations (were stubs)
- OrderCount/CurrentOrder/OrderName/OrderKeyExpr accessors on DBFArea
- ClearScope on order switch (prevents stale scope)

Cross-read test: Harbour-created CDX → Five reads, 20/20 items match:
  NAME/CITY/ID seek, ORDSCOPE count, GoTop/GoBottom all identical

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-06 12:21:26 +09:00
Charles KWON OhJun
59568f3301 Five v0.9 — Harbour + Go fusion language 
- Compiler: PP → Lexer → Parser → Analyzer → Gengo pipeline
- Parser: 232/236 (98%) Harbour compatibility, registry-based dispatch
- RTL: 351 Harbour-compatible functions
- RDD: DBF/NTX/CDX engines with Rushmore bitmap optimization
- Go Interop: IMPORT + pkg.Func() + obj:Method() with FastPath (15M calls/sec)
- HB_FUNC API: Full Harbour C API compatible Go bridge
- Concurrency: SPAWN/LAUNCH/GOROUTINE, <-, WATCH, PARALLEL FOR, ASYNC/AWAIT
- Extensions: Multi-return, DEFER, Slice, f-string, Nil-safe ?:, CONST
- Macro Compiler: Runtime AST parsing and evaluation
- Debugger: TUI debugger with source display, breakpoints, stepping
- FRB: Native + Pcode dual mode runtime binary
- Tests: 13 packages ALL PASS

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-31 09:41:50 +09:00