Add CoMonitoringData with line_opcodes and per_instruction_opcodes
side-tables. INSTRUMENTED_LINE and INSTRUMENTED_INSTRUCTION read
original opcodes from side-tables and re-dispatch after firing events.
- Add decode_exception_table() and CodeUnits::replace_op()
- Add Instruction::to_instrumented/to_base/is_instrumented mappings
- Three-phase instrument_code: de-instrument, re-instrument regular,
then layer INSTRUCTION and LINE with side-table storage
- Mark exception handler targets as line starts in LINE placement
- InstrumentedLine resolves side-table chain atomically when wrapping
InstrumentedInstruction
- InstrumentedForIter fires both BRANCH_LEFT and BRANCH_RIGHT
- Remove callback on DISABLE return for non-local events
* Clear frame locals and stack on generator close
Add Frame::clear_locals_and_stack() to release references held by
closed generators/coroutines, matching _PyFrame_ClearLocals behavior.
Call it from Coro::close() after marking the coroutine as closed.
Update test_generators.py expectedFailure markers accordingly.
* Add dir_fd support for rmdir, remove/unlink, scandir
- rmdir: use unlinkat(fd, path, AT_REMOVEDIR) when dir_fd given
- remove/unlink: use unlinkat(fd, path, 0) when dir_fd given
- scandir: accept fd via fdopendir, add ScandirIteratorFd
- listdir: rewrite fd path to use raw readdir instead of nix::dir::Dir
- DirEntry: add d_type and dir_fd fields for fd-based scandir
- Update supports_fd/supports_dir_fd entries accordingly
* cells_free
* Implement Windows SemLock in _multiprocessing module
Add SemLock class using Windows semaphore APIs (CreateSemaphoreW,
WaitForSingleObjectEx, ReleaseSemaphore) so test_multiprocessing
suites are no longer skipped with "lacks a functioning sem_open".
Also add sem_unlink as no-op and flags dict for Windows.
* Fix _multiprocessing recv to return bytes and improve SemLock reliability
- recv() now returns bytes instead of int (matching CPython)
- Remove spurious GetLastError() check after CreateSemaphoreW
- Add signal checking during blocking SemLock acquire
* Include winerror in OSError.__reduce__ on Windows
* Remove expectedFailure for tests now passing with Windows SemLock
* Fix OSError.__reduce__ to preserve winerror when filename is None
When filename is None, __reduce__ was reconstructing a 2-element
(errno, msg) tuple, dropping the winerror at position 3 in the
original args. Use the original args tuple instead, matching CPython.
* Validate maxvalue > 0 in SemLock and document winerror __reduce__ divergence
* Reject embedded null characters in mmap tagname and _winapi file mapping names
* cold block reordering and jump normalization
Add mark_cold, push_cold_blocks_to_end, and normalize_jumps
passes to the codegen CFG pipeline. Use JumpNoInterrupt for
exception handler exit paths in try-except-finally compilation.
* mark test_peepholer
Use Win32 CreateFileMappingW + MapViewOfFile when tagname is
provided, enabling inter-process shared memory for
multiprocessing.heap.Arena. Anonymous mmaps without tagname
still use memmap2.
Remove expectedFailure from test_tagname in test_mmap.py.
Two fixes in _winapi:
1. Box the OVERLAPPED struct in OverlappedInner to ensure it stays at
a stable heap address. Previously, into_pyobject() moved the struct
after ReadFile/WriteFile had given the OS a pointer to it, causing
GetOverlappedResult to read stale data (returning err=0 instead of
ERROR_MORE_DATA for zero-byte reads on message pipes).
2. Change ReadFile, WriteFile, ConnectNamedPipe overlapped parameter
from #[pyarg(named)] to #[pyarg(any)] so it can be passed both
positionally and as keyword argument.
* Add missing _winapi functions and fix WinHandle int conversion
Add 13 functions: ReadFile, SetNamedPipeHandleState, CreateFileMapping,
OpenFileMapping, MapViewOfFile, UnmapViewOfFile, VirtualQuerySize,
CopyFile2, ResetEvent, CreateMutex, OpenEventW, LoadLibrary,
_mimetypes_read_windows_registry.
Add constants: INVALID_HANDLE_VALUE, FILE_MAP_READ/WRITE/COPY/EXECUTE.
Change WinHandle integer type from usize to isize so negative values
like INVALID_HANDLE_VALUE (-1) can be passed from Python.
* Align _winapi module with CPython
- Rename winapi.rs to _winapi.rs with #[path] attribute
- Rename CreateMutex to CreateMutexW
- Add missing constants: ERROR_ACCESS_DENIED, ERROR_PRIVILEGE_NOT_HELD,
PROCESS_ALL_ACCESS, 10 STARTF_ constants, LOCALE_NAME_SYSTEM_DEFAULT,
LOCALE_NAME_USER_DEFAULT, COPY_FILE_DIRECTORY
- Fix OpenMutexW return type and ReleaseMutex param type to use WinHandle
* Fix ReadFile/WriteFile overlapped keyword argument
Use FromArgs structs so overlapped parameter can be passed as
a keyword argument (overlapped=True), matching the CPython API.
* Remove extra constants and LoadLibrary not in CPython _winapi
Remove 19 constants (WAIT_ABANDONED, CREATE_ALWAYS, CREATE_NEW,
OPEN_ALWAYS, TRUNCATE_EXISTING, FILE_ATTRIBUTE_NORMAL, 8 FILE_FLAG_*,
3 FILE_SHARE_*, NMPWAIT_NOWAIT, NMPWAIT_USE_DEFAULT_WAIT) and
LoadLibrary function that are not present in CPython's _winapi module.
* Fix utf8_mode default to 0 and add PYTHONUTF8 env var support
Default utf8_mode was incorrectly set to 1, causing text-mode
subprocess to always decode as UTF-8 instead of locale encoding.
Changed default to 0 to match CPython 3.13 behavior on Windows.
Added PYTHONUTF8 environment variable handling with -X utf8 override.
* Fix CopyFile2 to raise proper OSError subclass
Use std::io::Error::from_raw_os_error instead of vm.new_os_error so
that winerror attribute is set and errno-to-exception mapping works
(e.g. ERROR_ACCESS_DENIED → PermissionError).
* Fix syntax_non_utf8 test to not depend on locale encoding
Use explicit encoding='latin-1' so the test works regardless of
the system locale (e.g. C/POSIX locale uses ASCII by default).
slot_repr now checks the __module__ attribute set by #[pymodule]
at runtime, so explicit module = "..." in #[pystruct_sequence] is
no longer needed for types defined inside a #[pymodule].
- Add sys.call_tracing as func(*args) dispatch
- Add sys._current_exceptions with per-thread exception tracking
via thread_exceptions registry synced on push/pop/set_exception
- Fix f_back to use previous_frame pointer and cross-thread lookup
- Add module="sys" to float_info struct sequence
- Fix sys.exit to unpack tuple args
- Set default stdio_errors to surrogateescape
- Remove noisy __del__ warning in object core
Jeong, YunWon