Drive::read is now single-shot. Phase 1/2/3 retries + scsi::reset+reopen
removed (~80 lines). recovery=true bumps timeout to 30s; recovery=false
stays at 1.5s. On any failure returns Err(DiscRead) immediately — caller
(Disc::patch outer loop, DiscStream batch halver) handles retries.
Inline reset+reopen WAS the wedge primitive on the LG BU40N. Per prior
post-mortem, every USB/SCSI reset path tested fails to recover the
wedged Initio bridge — the inline retry was pure cost.
SgIoTransport::reset (Linux) trimmed to kernel SG_IO state flush +
ALLOW MEDIUM REMOVAL. SG_SCSI_RESET ioctl + STOP/START UNIT escalation
removed. macOS reset removed (no-op). scsi::reset() top-level family
removed (no callers).
EventKind::BytesRead { bytes, total } now actually emitted from
DiscStream::fill_extents after each successful sector read. Was
declared in 0.13.0, never fired. Drives autorip per-device progress
in direct mode.
EventKind::Retry / SectorRecovered no longer emitted (variants kept
for forward compat). SpeedChange still emitted via Drive::set_speed
public path.
Tests: new tests/integration_progress_and_halt.rs (5 tests). 233 unit
tests + 5 integration green.
Architectural cleanup. autorip + freemkv CLI were reimplementing drive
discovery (sysfs walking, type-5 filtering, sg-path construction) and
calling SCSI reset primitives directly. All of that hardware-aware code
moves into libfreemkv with two cheap public probes:
- DriveInfo + list_drives() — multi-OS enumeration (Linux/macOS/Windows)
with peripheral-type-5 filtering and INQUIRY identity. Cheap.
- drive_has_disc(path) — single TUR with internal wedge recovery
escalation (SCSI reset → USB reset → retry) hidden from callers.
USB-layer reset (USBDEVFS_RESET / IOUSBDeviceInterface::ResetDevice /
storport's combined reset) wired across all three platforms.
Visibility tightening — scsi::reset, scsi::usb_reset, and the timeout
constants are now pub(crate). Compile-time guarantee that no consumer
crate can issue SCSI commands directly.
233 lib tests pass; clippy clean.
Audit pass against the CLAUDE.md "no English text in library code" rule.
Found 9 call sites that violated the contract by stuffing English into
io::Error::new(kind, "…") or by abusing Error::DeviceNotFound { path }
as a free-form description field. Each is now a typed Error variant.
New variants and codes: ScsiInterfaceUnavailable (E1004), DeviceLocked
(E1005), IoKitPluginFailed (E1006), UnsupportedPlatform (E2003),
PlatformNotImplemented (E2004), MapfileInvalid (E6011), DiscUrlNotDirect
(E9009).
labels::apply() previously pushed Commentary/Descriptive/Score/IME and
" (Secondary)" English literals into AudioStream.label, leaking into
MKV titles + autorip UI. AudioStream now exposes structured `purpose:
LabelPurpose`, SubtitleStream `qualifier: LabelQualifier`. Callers
translate to localized text. label keeps codec-formatting only.
API hygiene: 11 mux/* modules dropped from `pub` to `pub(crate)` —
their *types* are still re-exported from lib.rs, but the modules were
leaking low-level EBML/TS/network primitives. Stream trait gets a real
rustdoc explaining read-vs-write split. lib.rs grouped re-exports into
documented sections. ScanOptions::with_keydb() removed (one-method-per-
action rule); use struct literal.
Dead-code sweep: removed lookahead.rs (orphan, never declared as mod),
tsreader.rs (TsDemuxReader unused), ebml::{write_int,read_vint,SEEK_*},
ts::{scan_first/last_pts,scan_duration,SCAN_HEAD/TAIL_SIZE,take/set_
remainder}, MkvMuxer codec_private_slots/filled fields and
fill_codec_private method (deferred-codecPrivate path never used since
the v0.10 PES rewrite). cargo clippy --all-targets -D warnings clean.
Tests: new error::tests for variant codes + Display "no English" guard +
io::ErrorKind mapping. 233 lib tests, all green (was 230).
Breaking: ScanOptions::with_keydb removed; mux/* modules pub(crate);
AudioStream and SubtitleStream gained required fields; UnsupportedDrive
{ product_revision: "Renesas not yet implemented" } no longer produced
(use PlatformNotImplemented).
Drive::read is now halt-check-free in its body. Previously, the halt
flag was checked in 4 places and the sleep logic was scattered across
4 "if halt_aware_sleep { return Halted }" call sites — correct, but
the ugliness invited drift: a new sleep added by someone unfamiliar
with the pattern would silently swallow Stop requests.
Two private primitives now own halt awareness:
checked_sleep(Duration) -> Result<()>
checked_exec(cdb, dir, buf, timeout_ms) -> Result<ScsiResult>
Both return Err(Halted) instead of a bool. The ? operator in read()
then propagates halts for free. The recovery path reads top-to-bottom
with no halt vocabulary.
sleep_until_halted lives as a free function so it's unit-testable
without a live Drive. 4 new tests: completes normally, bails on
pre-set flag within one slice, wakes mid-sleep, zero-duration no-op.
Public API unchanged — halt_flag/halt/clear_halt still exposed, the
refactor is entirely internal.
Stop was waiting up to 30 s to register when the drive hit L-EC
recovery mid-read — the recovery phase does 30 s sleeps between
retries and the halt flag was only checked at the start of each sleep.
UI feels broken ("stop isnt working") even though the halt was set.
halt_aware_sleep breaks each wait into 100 ms slices and returns
early on halt. Applied to all 4 sleeps in the recovery path (both
30 s retry delays, both 5 s reset-phase delays).
Disc::copy fast pass (skip_on_error=true, recovery=false) was giving
the drive 5 s per 64 KB block. On structure-protected / marginal UHD
sectors the drive grinds L-EC for nearly the full budget per block,
pinning throughput at ~13 KB/s even though skip_forward would happily
skip past the region.
1500ms bounds the floor at ~43 KB/s/block. Recoverable sectors that
would have succeeded at 3-5 s get picked up on Disc::patch (pass 2+)
where recovery=true and the per-read budget is 30 s.
Architecture:
- One stream per format, bidirectional PES (read/write on same type)
- IsoStream merged into DiscStream (one type, any SectorReader)
- Disc::copy() for disc→ISO raw sector dump
- IOStream trait deleted, all byte-level Read/Write removed
- ContentReader/OpenDisc/open_title/open_input/open_output deleted
- CountingStream wrapper for progress tracking
Error codes:
- All io::Error English strings replaced with Error enum variants
- From<Error> for io::Error conversion
- Unused variants removed, new stream/mux variants added
Deleted: mkvout.rs, pesout.rs, isowriter.rs, mkv-muxer-plan.md
Updated: all docs, README stream table, CHANGELOG
238 tests, 0 clippy warnings.
- Remove unused pes_buf field from M2tsStream and unused TS_PACKET/BD_TS_PACKET constants
- Replace match-with-single-pattern with if let (3 instances in drive/mod.rs)
- Replace match-can-be-? with ? operator for scsi::open call
- Add type aliases PesSetup and MkvHeaderResult to reduce type complexity
- Collapse identical if/else branches in tsmux.rs build_pes_header
- Use RangeInclusive::contains instead of manual range checks
- Make WriteSeek trait pub (was pub(crate) but leaked through pub fn)
- Remove empty line after doc comment in disc.rs
- Fix doc list item indentation in scsi/linux.rs (12 instances)
- Rename DriveSession → Drive across entire codebase
- find_drives() returns Vec<Drive>, find_drive() returns Option<Drive>
- resolve_device() now pub(crate) — internal only
- StreamUrl is now a typed enum (Disc, Mkv, M2ts, Iso, Network, Stdio, Null)
with scheme() and path_str() accessors, replacing struct of Strings
- Add lock_tray() / unlock_tray() for safe disc access during rips
- Improve reset() with eject cycle that clears LibreDrive stuck state
- Add Send bounds to ScsiTransport and PlatformDriver traits
- DiscOptions uses PathBuf instead of String for device/keydb paths
- Update doc example to use new Drive API
- DriveStatus enum: TrayOpen, NoDisc, DiscPresent, NotReady, Unknown
- drive_status(): GET EVENT STATUS NOTIFICATION with TUR fallback
- reset(): PREVENT ALLOW → START STOP → init() escalation
- wait_ready(): tries reset on Illegal Request, falls back to drive_status
- Remaining: standard READ(10) still fails in LibreDrive stuck state
- wait_ready: detects MMkv vendor probe when TUR returns Illegal Request
- scan: capacity fallback to 0 when READ CAPACITY fails
- Still needs: re-init to restore standard SCSI commands, or use raw reads for UDF
matthew
Matt Jackson