feat: PR4b — binary decoder, fallback migration, logical clear#9
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TunnelDiagnosticsDecoder (FptnVPN/Services/): - Injectable paths, clocks, ticksToSeconds (mach_timebase_info) - Per-process wall-time anchors from processStarted events - Unknown-safe: preserves raw event codes, timestamp nil without anchor - FptnReadStatus: OK/FileNotFound/InvalidHeader/Empty/IoError - Full ring header validation: magic, schema, geometry, CRC, file size - errno-based status (ENOENT vs IoError) - Null-safe output_count check - Failure report filtered by processToken + sessionToken - Logical clear watermark (hide events at/below watermark) VPNService migration: - evaluateFallbackDecision uses binary snapshot - Controlled-stop check first (trust window), then freshness recheck - Failure report uses makeFailureReport (session-filtered) LogsViewModel migration: - Export uses binary decoder - Clear writes logical watermark instead of deleting binary files Event value payloads: - transportDisconnected: value0=disconnectCode, value1=stopOrigin, value2=activeOps, flags[0]=wasConnected - reconnectScheduled: value0=attempt, value1=delaySeconds, flags[0]=pathSatisfied - memoryWarning/Critical: value0=footprint, value1=resident, value2=peak - Memory recording separated from OSLog throttle (level-change tracking) - physicalFootprintPeakBytes captured under diagnosticsLock Schema ABI: - fptn_diagnostics_schema_version, capacity, record_size, ring_file_size - FptnReadStatus enum in public C header Remaining: FptnShared 0.3.0 integration (after PR4a merge/tag) Tests: 27/27 passed. 8 files, +500/-65.
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PR4b — Binary Decoder, Fallback Migration, Logical Clear
Base:
pr3a/signposts· Head:dbb683d· 8 files, +511/-65TunnelDiagnosticsDecoder
Injectable, unknown-safe app-side decoder:
mach_timebase_infotick→seconds conversion (no hardcoded 1ns assumption)processStartedeventstimestamp == nilwhen no matching process anchorFptnReadStatus: OK / FileNotFound / InvalidHeader / Empty / IoErrorerrno-based classification (ENOENT vs IoError)output_countcheckprocessToken+sessionTokenVPNService migration
evaluateFallbackDecision→ binary lifecycle snapshotmakeFailureReport()(session-filtered)LogsViewModel migration
Event value payloads
transportDisconnectedreconnectScheduledmemoryWarning/CriticalMemory recording separated from OSLog throttle (level-change tracking). Peak captured under
diagnosticsLock.Schema ABI
fptn_diagnostics_schema_version,fptn_flight_recorder_capacity,fptn_flight_recorder_record_size,fptn_flight_ring_file_sizeRemaining
0.3.0integration (after PR4a merge/tag)Verification
Stack