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* gh-119690: Adds Unicode support for named pipes in _winapi (GH-119717)Miss Islington (bot)2024-05-311-19/+18
| | | | | (cherry picked from commit 78d697b7d5ec2a6fa046b0e1c34e804f49e750b4) Co-authored-by: Steve Dower <steve.dower@python.org>
* gh-116322: Add Py_mod_gil module slot (#116882)Brett Simmers2024-05-031-0/+1
| | | | | | | | | | | | | | This PR adds the ability to enable the GIL if it was disabled at interpreter startup, and modifies the multi-phase module initialization path to enable the GIL when loading a module, unless that module's spec includes a slot indicating it can run safely without the GIL. PEP 703 called the constant for the slot `Py_mod_gil_not_used`; I went with `Py_MOD_GIL_NOT_USED` for consistency with gh-104148. A warning will be issued up to once per interpreter for the first GIL-using module that is loaded. If `-v` is given, a shorter message will be printed to stderr every time a GIL-using module is loaded (including the first one that issues a warning).
* gh-118293: Suppress mouse cursor feedback when launching Windows processes ↵Henrik Tunedal2024-04-281-0/+48
| | | | with multiprocessing (GH-118315)
* gh-90329: Add _winapi.GetLongPathName and GetShortPathName and use in venv ↵Steve Dower2024-04-151-0/+87
| | | | to reduce warnings (GH-117817)
* gh-114570: Add PythonFinalizationError exception (#115352)Victor Stinner2024-02-141-1/+1
| | | | | | | | | | | | | | | | | Add PythonFinalizationError exception. This exception derived from RuntimeError is raised when an operation is blocked during the Python finalization. The following functions now raise PythonFinalizationError, instead of RuntimeError: * _thread.start_new_thread() * subprocess.Popen * os.fork() * os.fork1() * os.forkpty() Morever, _winapi.Overlapped finalizer now logs an unraisable PythonFinalizationError, instead of an unraisable RuntimeError.
* gh-89240: Enable multiprocessing on Windows to use large process pools ↵Steve Dower2024-02-131-0/+506
| | | | | | | (GH-107873) We add _winapi.BatchedWaitForMultipleObjects to wait for larger numbers of handles. This is an internal module, hence undocumented, and should be used with caution. Check the docstring for info before using BatchedWaitForMultipleObjects.
* Use Unicode unconditionally for _winapi.CreateFile (GH-114611)Steve Dower2024-01-261-8/+9
| | | Currently it switches based on build settings, but argument clinic does not handle it correctly.
* gh-114096: Restore privileges in _winapi.CreateJunction after creating the ↵Steve Dower2024-01-161-7/+21
| | | | | junction (GH-114089) This avoids impact on later parts of the application which may be able to do things they otherwise shouldn't.
* gh-87868: Sort and remove duplicates in getenvironment() (GH-102731)AN Long2024-01-091-4/+155
| | | | | Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com> Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-110093: Replace trivial Py_BuildValue() with direct C API call (GH-110094)Serhiy Storchaka2023-10-201-2/+2
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* gh-106844: Fix issues in _winapi.LCMapStringEx (GH-107832)Serhiy Storchaka2023-08-111-9/+25
| | | | | | | | | * Strings with length from 2**31-1 to 2**32-2 always caused MemoryError, it doesn't matter how much memory is available. * Strings with length exactly 2**32-1 caused OSError. * Strings longer than 2**32-1 characters were truncated due to integer overflow bug. * Strings containing the null character were truncated at the first null character. Now strings longer than 2**31-1 characters caused OverflowError and the null character is allowed.
* gh-106869: Use new PyMemberDef constant names (#106871)Victor Stinner2023-07-251-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Remove '#include "structmember.h"'. * If needed, add <stddef.h> to get offsetof() function. * Update Parser/asdl_c.py to regenerate Python/Python-ast.c. * Replace: * T_SHORT => Py_T_SHORT * T_INT => Py_T_INT * T_LONG => Py_T_LONG * T_FLOAT => Py_T_FLOAT * T_DOUBLE => Py_T_DOUBLE * T_STRING => Py_T_STRING * T_OBJECT => _Py_T_OBJECT * T_CHAR => Py_T_CHAR * T_BYTE => Py_T_BYTE * T_UBYTE => Py_T_UBYTE * T_USHORT => Py_T_USHORT * T_UINT => Py_T_UINT * T_ULONG => Py_T_ULONG * T_STRING_INPLACE => Py_T_STRING_INPLACE * T_BOOL => Py_T_BOOL * T_OBJECT_EX => Py_T_OBJECT_EX * T_LONGLONG => Py_T_LONGLONG * T_ULONGLONG => Py_T_ULONGLONG * T_PYSSIZET => Py_T_PYSSIZET * T_NONE => _Py_T_NONE * READONLY => Py_READONLY * PY_AUDIT_READ => Py_AUDIT_READ * READ_RESTRICTED => Py_AUDIT_READ * PY_WRITE_RESTRICTED => _Py_WRITE_RESTRICTED * RESTRICTED => (READ_RESTRICTED | _Py_WRITE_RESTRICTED)
* gh-106406: Fix _Py_IsInterpreterFinalizing() in _winapi.c (#106408)Nikita Sobolev2023-07-041-0/+1
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* gh-106320: Use _PyInterpreterState_GET() (#106336)Victor Stinner2023-07-021-1/+2
| | | | Replace PyInterpreterState_Get() with inlined _PyInterpreterState_GET().
* gh-105436: The environment block should end with two null wchar_t values ↵Dora2032023-06-121-1/+13
| | | | (GH-105495)
* gh-105156: Argument Clinic avoids Py_UNICODE type (#105161)Victor Stinner2023-05-311-4/+3
| | | | Argument Clinic now uses "const wchar_t*" type instead of "const Py_UNICODE*" type for the "Py_UNICODE" format.
* gh-88745: Add _winapi.CopyFile2 and update shutil.copy2 to use it (GH-105055)Steve Dower2023-05-301-0/+93
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* gh-104341: Adjust tstate_must_exit() to Respect Interpreter Finalization ↵Eric Snow2023-05-151-1/+1
| | | | | (gh-104437) With the move to a per-interpreter GIL, this check slipped through the cracks.
* gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205)Eric Snow2023-05-051-0/+1
| | | Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules. We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
* GH-75586: Make shutil.which() on Windows more consistent with the OS (GH-103179)Charles Machalow2023-04-041-0/+21
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* gh-102255: Improve build support for Windows API partitions (GH-102256)Max Bachmann2023-03-091-0/+13
| | | | | Add `MS_WINDOWS_DESKTOP`, `MS_WINDOWS_APPS`, `MS_WINDOWS_SYSTEM` and `MS_WINDOWS_GAMES` preprocessor definitions to allow switching off functionality missing from particular API partitions ("partitions" are used in Windows to identify overlapping subsets of APIs). CPython only officially supports `MS_WINDOWS_DESKTOP` and `MS_WINDOWS_SYSTEM` (APPS is included by normal desktop builds, but APPS without DESKTOP is not covered). Other configurations are a convenience for people building their own runtimes. `MS_WINDOWS_GAMES` is for the Xbox subset of the Windows API, which is also available on client OS, but is restricted compared to `MS_WINDOWS_DESKTOP`. These restrictions may change over time, as they relate to the build headers rather than the OS support, and so we assume that Xbox builds will use the latest available version of the GDK.
* gh-102336: Ensure CancelIoEx result is not ignored (GH-102347)Max Bachmann2023-03-011-1/+1
| | | fix ignored return value
* gh-102336: Remove code specifically for handling Windows 7 (GH-102337)Max Bachmann2023-03-011-25/+6
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* bpo-15999: Accept arbitrary values for boolean parameters. (#15609)Serhiy Storchaka2022-12-031-6/+6
| | | builtins and extension module functions and methods that expect boolean values for parameters now accept any Python object rather than just a bool or int type. This is more consistent with how native Python code itself behaves.
* bpo-40882: Fix a memory leak in SharedMemory on Windows (GH-20684)Zackery Spytz2022-11-251-0/+25
| | | | | In multiprocessing.shared_memory.SharedMemory(), the temporary view returned by MapViewOfFile() should be unmapped when it is no longer needed.
* gh-99300: Use Py_NewRef() in Modules/ directory (#99468)Victor Stinner2022-11-141-2/+1
| | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in test C files of the Modules/ directory.
* gh-98610: Adjust the Optional Restrictions on Subinterpreters (GH-98618)Eric Snow2022-10-311-7/+0
| | | | | | | Previously, the optional restrictions on subinterpreters were: disallow fork, subprocess, and threads. By default, we were disallowing all three for "isolated" interpreters. We always allowed all three for the main interpreter and those created through the legacy `Py_NewInterpreter()` API. Those settings were a bit conservative, so here we've adjusted the optional restrictions to: fork, exec, threads, and daemon threads. The default for "isolated" interpreters disables fork, exec, and daemon threads. Regular threads are allowed by default. We continue always allowing everything For the main interpreter and the legacy API. In the code, we add `_PyInterpreterConfig.allow_exec` and `_PyInterpreterConfig.allow_daemon_threads`. We also add `Py_RTFLAGS_DAEMON_THREADS` and `Py_RTFLAGS_EXEC`.
* gh-98608: Change _Py_NewInterpreter() to _Py_NewInterpreterFromConfig() ↵Eric Snow2022-10-261-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | (gh-98609) (see https://github.com/python/cpython/issues/98608) This change does the following: 1. change the argument to a new `_PyInterpreterConfig` struct 2. rename the function to `_Py_NewInterpreterFromConfig()`, inspired by `Py_InitializeFromConfig()` (takes a `_PyInterpreterConfig` instead of `isolated_subinterpreter`) 3. split up the boolean `isolated_subinterpreter` into the corresponding multiple granular settings * allow_fork * allow_subprocess * allow_threads 4. add `PyInterpreterState.feature_flags` to store those settings 5. add a function for checking if a feature is enabled on an opaque `PyInterpreterState *` 6. drop `PyConfig._isolated_interpreter` The existing default (see `Py_NewInterpeter()` and `Py_Initialize*()`) allows fork, subprocess, and threads and the optional "isolated" interpreter (see the `_xxsubinterpreters` module) disables all three. None of that changes here; the defaults are preserved. Note that the given `_PyInterpreterConfig` will not be used outside `_Py_NewInterpreterFromConfig()`, nor preserved. This contrasts with how `PyConfig` is currently preserved, used, and even modified outside `Py_InitializeFromConfig()`. I'd rather just avoid that mess from the start for `_PyInterpreterConfig`. We can preserve it later if we find an actual need. This change allows us to follow up with a number of improvements (e.g. stop disallowing subprocess and support disallowing exec instead). (Note that this PR adds "private" symbols. We'll probably make them public, and add docs, in a separate change.)
* bpo-42658: Use LCMapStringEx in ntpath.normcase to match OS behaviour for ↵AN Long2022-06-061-0/+61
| | | | case-folding (GH-32010)
* Update URLs in comments and metadata to use HTTPS (GH-27458)Noah Kantrowitz2021-07-301-1/+1
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* bpo-40263: Fixes an off-by-one error in _winapi_WaitForMultipleObjects_impl ↵Ray Donnelly2021-07-281-1/+1
| | | | (GH-19501)
* bpo-44582: Accelerate mimetypes.init on Windows with a native accelerator ↵Steve Dower2021-07-081-0/+108
| | | | (GH-27059)
* bpo-43908: Make heap types converted during 3.10 alpha immutable (GH-26351)Erlend Egeberg Aasland2021-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Make functools types immutable * Multibyte codec types are now immutable * pyexpat.xmlparser is now immutable * array.arrayiterator is now immutable * _thread types are now immutable * _csv types are now immutable * _queue.SimpleQueue is now immutable * mmap.mmap is now immutable * unicodedata.UCD is now immutable * sqlite3 types are now immutable * _lsprof.Profiler is now immutable * _overlapped.Overlapped is now immutable * _operator types are now immutable * winapi__overlapped.Overlapped is now immutable * _lzma types are now immutable * _bz2 types are now immutable * _dbm.dbm and _gdbm.gdbm are now immutable
* bpo-42972: Fix GC assertion error in _winapi by untracking Overlapped ↵Ken Jin2021-05-281-1/+1
| | | | earlier (GH(26429)
* bpo-42972: Fully support GC for _winapi.Overlapped (GH-26381)Ken Jin2021-05-281-2/+46
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* bpo-43916: Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to selected types (GH-25748)Erlend Egeberg Aasland2021-04-301-1/+1
| | | | | | | | | | | | | | | | | | | | | Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to the following types: * _dbm.dbm * _gdbm.gdbm * _multibytecodec.MultibyteCodec * _sre..SRE_Scanner * _thread._localdummy * _thread.lock * _winapi.Overlapped * array.arrayiterator * functools.KeyWrapper * functools._lru_list_elem * pyexpat.xmlparser * re.Match * re.Pattern * unicodedata.UCD * zlib.Compress * zlib.Decompress
* bpo-40137: Add pycore_moduleobject.h internal header (GH-25507)Victor Stinner2021-04-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add pycore_moduleobject.h internal header file with static inline functions to access module members: * _PyModule_GetDict() * _PyModule_GetDef() * _PyModule_GetState() These functions don't check at runtime if their argument has a valid type and can be inlined even if Python is not built with LTO. _PyType_GetModuleByDef() uses _PyModule_GetDef(). Replace PyModule_GetState() with _PyModule_GetState() in the extension modules, considered as performance sensitive: * _abc * _functools * _operator * _pickle * _queue * _random * _sre * _struct * _thread * _winapi * array * posix The following extensions are now built with the Py_BUILD_CORE_MODULE macro defined, to be able to use the internal pycore_moduleobject.h header: _abc, array, _operator, _queue, _sre, _struct.
* bpo-1635741: Port _winapi ext to multi-stage init (GH-21371)Mohamed Koubaa2020-08-131-73/+78
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* bpo-36346: Make using the legacy Unicode C API optional (GH-21437)Serhiy Storchaka2020-07-101-8/+9
| | | | Add compile time option USE_UNICODE_WCHAR_CACHE. Setting it to 0 makes the interpreter not using the wchar_t cache and the legacy Unicode C API.
* bpo-40453: Add PyConfig._isolated_subinterpreter (GH-19820)Victor Stinner2020-05-011-0/+8
| | | | | | | | | An isolated subinterpreter cannot spawn threads, spawn a child process or call os.fork(). * Add private _Py_NewInterpreter(isolated_subinterpreter) function. * Add isolated=True keyword-only parameter to _xxsubinterpreters.create(). * Allow again os.fork() in "non-isolated" subinterpreters.
* bpo-40268: Remove unused structmember.h includes (GH-19530)Victor Stinner2020-04-151-3/+3
| | | | | | If only offsetof() is needed: include stddef.h instead. When structmember.h is used, add a comment explaining that PyMemberDef is used.
* Use calloc-based functions, not malloc. (GH-19152)Andy Lester2020-03-251-2/+1
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* bpo-36974: tp_print -> tp_vectorcall_offset and tp_reserved -> tp_as_async ↵Jeroen Demeyer2019-05-311-2/+2
| | | | | | | | | (GH-13464) Automatically replace tp_print -> tp_vectorcall_offset tp_compare -> tp_as_async tp_reserved -> tp_as_async
* bpo-36935: Remove usage of the deprecated ↵Zackery Spytz2019-05-301-2/+6
| | | | | | | | PyErr_SetFromWindowsErrWithUnicodeFilename() (GH-13355) In e895de3e7f3cc2f7213b87621cfe9812ea4343f0, the deprecated function PyErr_SetFromWindowsErrWithUnicodeFilename() was added in two functions in Modules/_winapi.c. This function was deprecated in 3.3.
* bpo-36842: Implement PEP 578 (GH-12613)Steve Dower2019-05-231-2/+45
| | | Adds sys.audit, sys.addaudithook, io.open_code, and associated C APIs.
* bpo-36888: Add multiprocessing.parent_process() (GH-13247)Thomas Moreau2019-05-201-0/+1
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* bpo-36387: Refactor getenvironment() in _winapi.c. (GH-12482)Serhiy Storchaka2019-03-281-46/+34
| | | Make it doing less memory allocations and using the modern C API.
* bpo-35813: Tests and docs for shared_memory (#11816)Davin Potts2019-02-241-1/+163
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Added tests for shared_memory submodule. * Added tests for ShareableList. * Fix bug in allocationn size during creation of empty ShareableList illuminated by existing test run on Linux. * Initial set of docs for shared_memory module. * Added docs for ShareableList, added doctree entry for shared_memory submodule, name refactoring for greater clarity. * Added examples to SharedMemoryManager docs, for ease of documentation switched away from exclusively registered functions to some explicit methods on SharedMemoryManager. * Wording tweaks to docs. * Fix test failures on Windows. * Added tests around SharedMemoryManager. * Documentation tweaks. * Fix inappropriate test on Windows. * Further documentation tweaks. * Fix bare exception. * Removed __copyright__. * Fixed typo in doc, removed comment. * Updated SharedMemoryManager preliminary tests to reflect change of not supporting all registered functions on SyncManager. * Added Sphinx doctest run controls. * CloseHandle should be in a finally block in case MapViewOfFile fails. * Missed opportunity to use with statement. * Switch to self.addCleanup to spare long try/finally blocks and save one indentation, change to use decorator to skip test instead. * Simplify the posixshmem extension module. Provide shm_open() and shm_unlink() functions. Move other functionality into the shared_memory.py module. * Added to doc around size parameter of SharedMemory. * Changed PosixSharedMemory.size to use os.fstat. * Change SharedMemory.buf to a read-only property as well as NamedSharedMemory.size. * Marked as provisional per PEP411 in docstring. * Changed SharedMemoryTracker to be private. * Removed registered Proxy Objects from SharedMemoryManager. * Removed shareable_wrap(). * Removed shareable_wrap() and dangling references to it. * For consistency added __reduce__ to key classes. * Fix for potential race condition on Windows for O_CREX. * Remove unused imports. * Update access to kernel32 on Windows per feedback from eryksun. * Moved kernel32 calls to _winapi. * Removed ShareableList.copy as redundant. * Changes to _winapi use from eryksun feedback. * Adopt simpler SharedMemory API, collapsing PosixSharedMemory and WindowsNamedSharedMemory into one. * Fix missing docstring on class, add test for ignoring size when attaching. * Moved SharedMemoryManager to managers module, tweak to fragile test. * Tweak to exception in OpenFileMapping suggested by eryksun. * Mark a few dangling bits as private as suggested by Giampaolo.
* bpo-35489: Use "const Py_UNICODE *" for the Py_UNICODE converter in AC. ↵Serhiy Storchaka2018-12-141-3/+4
| | | | (GH-11150)
* bpo-31446: Copy command line that should be passed to CreateProcessW(). ↵Vladimir Matveev2018-12-141-4/+20
| | | | (GH-11141)
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