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* bpo-41686: Always create the SIGINT event on Windows (GH-23344) (GH-23347)Victor Stinner2020-11-171-0/+1
| | | | | | bpo-41686, bpo-41713: On Windows, the SIGINT event, _PyOS_SigintEvent(), is now created even if Python is configured to not install signal handlers (PyConfig.install_signal_handlers=0 or Py_InitializeEx(0)).
* bpo-41617: Add _Py__has_builtin() macro (GH-23260) (GH-23262)Victor Stinner2020-11-131-9/+6
| | | | | | | | | | | | Fix building pycore_bitutils.h internal header on old clang version without __builtin_bswap16() (ex: Xcode 4.6.3 on Mac OS X 10.7). Add a new private _Py__has_builtin() macro to check for availability of a preprocessor builtin function. Co-Authored-By: Joshua Root <jmr@macports.org> Co-authored-by: Joshua Root <jmr@macports.org> (cherry picked from commit b3b98082c5431e77c64cab2c85525a804436b505)
* Fix a compiler warning in pycore_pylifecycle.h (GH-22331)Pablo Galindo2020-09-211-1/+1
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* [3.9] bpo-41631: _ast module uses again a global state (GH-21961) (GH-22258)Pablo Galindo2020-09-151-0/+1
| | | | | | | | | | | | | | | | | | | | Partially revert commit ac46eb4ad6662cf6d771b20d8963658b2186c48c: "bpo-38113: Update the Python-ast.c generator to PEP384 (gh-15957)". Using a module state per module instance is causing subtle practical problems. For example, the Mercurial project replaces the __import__() function to implement lazy import, whereas Python expected that "import _ast" always return a fully initialized _ast module. Add _PyAST_Fini() to clear the state at exit. The _ast module has no state (set _astmodule.m_size to 0). Remove astmodule_traverse(), astmodule_clear() and astmodule_free() functions.. (cherry picked from commit e5fbe0cbd4be99ced5f000ad382208ad2a561c90) Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-41617: Fix pycore_byteswap.h to support clang 3.0 (GH-22042) (GH-22044)Victor Stinner2020-09-011-4/+6
| | | | | __builtin_bswap16() is not available in LLVM clang 3.0. (cherry picked from commit e6905e4c82cc05897dc1bf5ab2b5b94b2b043a7f)
* bpo-40910: Export Py_GetArgcArgv() function (GH-20721) (GH-20723)Victor Stinner2020-06-081-1/+1
| | | | | | | | | | | | | | Export explicitly the Py_GetArgcArgv() function to the C API and document the function. Previously, it was exported implicitly which no longer works since Python is built with -fvisibility=hidden. * Add PyConfig._orig_argv member. * Py_InitializeFromConfig() no longer calls _PyConfig_Write() twice. * PyConfig_Read() no longer initializes Py_GetArgcArgv(): it is now _PyConfig_Write() responsibility. * _PyConfig_Write() result type becomes PyStatus instead of void. * Write an unit test on Py_GetArgcArgv(). (cherry picked from commit e81f6e687d0f04a45f2389d0b43fafd6d8491624)
* [3.9] bpo-40826: PyOS_InterruptOccurred() requires GIL (GH-20578) (GH-20618)Victor Stinner2020-06-031-1/+18
| | | | | | | | | | | | | | | * bpo-40826: Add _Py_EnsureTstateNotNULL() macro (GH-20571) Add _Py_EnsureTstateNotNULL(tstate) macro: call Py_FatalError() if tstate is NULL, the error message contains the current function name. (cherry picked from commit 3026cad59b87751a9215111776cac8e819458fce) * bpo-40826: PyOS_InterruptOccurred() requires GIL (GH-20578) PyOS_InterruptOccurred() now fails with a fatal error if it is called with the GIL released. (cherry picked from commit cbe129692293251e7fbcea9ff0d822824d90c140)
* [3.9] bpo-40826: Fix GIL usage in PyOS_Readline() (GH-20613)Victor Stinner2020-06-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | * bpo-40826: Fix GIL usage in PyOS_Readline() (GH-20579) Fix GIL usage in PyOS_Readline(): lock the GIL to set an exception. Pass tstate to my_fgets() and _PyOS_WindowsConsoleReadline(). Cleanup these functions. (cherry picked from commit c353764fd564e401cf47a5d9efab18c72c60014e) * bpo-40826: Add _PyOS_InterruptOccurred(tstate) function (GH-20599) my_fgets() now calls _PyOS_InterruptOccurred(tstate) to check for pending signals, rather calling PyOS_InterruptOccurred(). my_fgets() is called with the GIL released, whereas PyOS_InterruptOccurred() must be called with the GIL held. test_repl: use text=True and avoid SuppressCrashReport in test_multiline_string_parsing(). Fix my_fgets() on Windows: fgets(fp) does crash if fileno(fp) is closed. (cherry picked from commit fa7ab6aa0f9a4f695e5525db5a113cd21fa93787)
* bpo-40696: Fix a hang that can arise after gen.throw() (GH-20287)Miss Islington (bot)2020-05-221-1/+1
| | | | | | | | | | This updates _PyErr_ChainStackItem() to use _PyErr_SetObject() instead of _PyErr_ChainExceptions(). This prevents a hang in certain circumstances because _PyErr_SetObject() performs checks to prevent cycles in the exception context chain while _PyErr_ChainExceptions() doesn't. (cherry picked from commit 7c30d12bd5359b0f66c4fbc98aa055398bcc8a7e) Co-authored-by: Chris Jerdonek <chris.jerdonek@gmail.com>
* [3.9] bpo-40514: Remove --with-experimental-isolated-subinterpreters in 3.9 ↵Victor Stinner2020-05-194-21/+0
| | | | | | | (GH-20228) Remove --with-experimental-isolated-subinterpreters configure option in Python 3.9: the experiment continues in the master branch, but it's no longer needed in 3.9.
* bpo-31033: Improve the traceback for cancelled asyncio tasks (GH-19951)Chris Jerdonek2020-05-181-0/+17
| | | | | When an asyncio.Task is cancelled, the exception traceback now starts with where the task was first interrupted. Previously, the traceback only had "depth one."
* bpo-40602: Write unit tests for _Py_hashtable_t (GH-20091)Victor Stinner2020-05-141-11/+12
| | | | | | | Cleanup also hashtable.c. Rename _Py_hashtable_t members: * Rename entries to nentries * Rename num_buckets to nbuckets
* bpo-40521: Add PyInterpreterState.unicode (GH-20081)Victor Stinner2020-05-131-8/+14
| | | | | | | Move PyInterpreterState.fs_codec into a new PyInterpreterState.unicode structure. Give a name to the fs_codec structure and use this structure in unicodeobject.c.
* bpo-40609: _Py_hashtable_t values become void* (GH-20065)Victor Stinner2020-05-131-67/+21
| | | | | | | | | | | | | | | | | | | | | _Py_hashtable_t values become regular "void *" pointers. * Add _Py_hashtable_entry_t.data member * Remove _Py_hashtable_t.data_size member * Remove _Py_hashtable_t.get_func member. It is no longer needed to specialize _Py_hashtable_get() for a specific value size, since all entries now have the same size (void*). * Remove the following macros: * _Py_HASHTABLE_GET() * _Py_HASHTABLE_SET() * _Py_HASHTABLE_SET_NODATA() * _Py_HASHTABLE_POP() * Rename _Py_hashtable_pop() to _Py_hashtable_steal() * _Py_hashtable_foreach() callback now gets key and value rather than entry. * Remove _Py_hashtable_value_destroy_func type. value_destroy_func callback now only has a single parameter: data (void*).
* bpo-40609: _tracemalloc allocates traces (GH-20064)Victor Stinner2020-05-131-10/+0
| | | | | | | | | | | | | Rewrite _tracemalloc to store "trace_t*" rather than directly "trace_t" in traces hash tables. Traces are now allocated on the heap memory, outside the hash table. Add tracemalloc_copy_traces() and tracemalloc_copy_domains() helper functions. Remove _Py_hashtable_copy() function since there is no API to copy a key or a value. Remove also _Py_hashtable_delete() function which was commented.
* bpo-40609: Add destroy functions to _Py_hashtable (GH-20062)Victor Stinner2020-05-131-3/+10
| | | | | | Add key_destroy_func and value_destroy_func parameters to _Py_hashtable_new_full(). marshal.c and _tracemalloc.c use these destroy functions.
* bpo-40609: Remove _Py_hashtable_t.key_size (GH-20060)Victor Stinner2020-05-131-53/+21
| | | | | | | | | | Rewrite _Py_hashtable_t type to always store the key as a "const void *" pointer. Add an explicit "key" member to _Py_hashtable_entry_t. Remove _Py_hashtable_t.key_size member. hash and compare functions drop their hash table parameter, and their 'key' parameter type becomes "const void *".
* bpo-40609: Rewrite how _tracemalloc handles domains (GH-20059)Victor Stinner2020-05-121-6/+1
| | | | | | | | | | Rewrite how the _tracemalloc module stores traces of other domains. Rather than storing the domain inside the key, it now uses a new hash table with the domain as the key, and the data is a per-domain traces hash table. * Add tracemalloc_domain hash table. * Remove _Py_tracemalloc_config.use_domain. * Remove pointer_t and related functions.
* bpo-40602: Optimize _Py_hashtable for pointer keys (GH-20051)Victor Stinner2020-05-121-15/+25
| | | | | | | | | | | | | | | Optimize _Py_hashtable_get() and _Py_hashtable_get_entry() for pointer keys: * key_size == sizeof(void*) * hash_func == _Py_hashtable_hash_ptr * compare_func == _Py_hashtable_compare_direct Changes: * Add get_func and get_entry_func members to _Py_hashtable_t * Convert _Py_hashtable_get() and _Py_hashtable_get_entry() functions to static nline functions. * Add specialized get and get entry for pointer keys.
* bpo-40602: Rename hashtable.h to pycore_hashtable.h (GH-20044)Victor Stinner2020-05-121-0/+218
| | | | | | | * Move Modules/hashtable.h to Include/internal/pycore_hashtable.h * Move Modules/hashtable.c to Python/hashtable.c * Python is now linked to hashtable.c. _tracemalloc is no longer linked to hashtable.c. Previously, marshal.c got hashtable.c via _tracemalloc.c which is built as a builtin module.
* bpo-40513: Per-interpreter GIL (GH-19943)Victor Stinner2020-05-053-0/+9
| | | | | | | | In the experimental isolated subinterpreters build mode, the GIL is now per-interpreter. Move gil from _PyRuntimeState.ceval to PyInterpreterState.ceval. new_interpreter() always get the config from the main interpreter.
* bpo-40522: _PyThreadState_Swap() sets autoTSSkey (GH-19939)Victor Stinner2020-05-051-2/+18
| | | | | | | | | | | | | | | | | | In the experimental isolated subinterpreters build mode, _PyThreadState_GET() gets the autoTSSkey variable and _PyThreadState_Swap() sets the autoTSSkey variable. * Add _PyThreadState_GetTSS() * _PyRuntimeState_GetThreadState() and _PyThreadState_GET() return _PyThreadState_GetTSS() * PyEval_SaveThread() sets the autoTSSkey variable to current Python thread state rather than NULL. * eval_frame_handle_pending() doesn't check that _PyThreadState_Swap() result is NULL. * _PyThreadState_Swap() gets the current Python thread state with _PyThreadState_GetTSS() rather than _PyRuntimeGILState_GetThreadState(). * PyGILState_Ensure() no longer checks _PyEval_ThreadsInitialized() since it cannot access the current interpreter.
* Revert "bpo-40513: Per-interpreter signals pending (GH-19924)" (GH-19932)Victor Stinner2020-05-052-2/+5
| | | This reverts commit 4e01946cafca0cf49f796c3118e0d65237bcad69.
* bpo-40513: Per-interpreter recursion_limit (GH-19929)Victor Stinner2020-05-053-12/+14
| | | | | | | | | | | Move recursion_limit member from _PyRuntimeState.ceval to PyInterpreterState.ceval. * Py_SetRecursionLimit() now only sets _Py_CheckRecursionLimit of ceval.c if the current Python thread is part of the main interpreter. * Inline _Py_MakeEndRecCheck() into _Py_LeaveRecursiveCall(). * Convert _Py_RecursionLimitLowerWaterMark() macro into a static inline function.
* bpo-40513: Per-interpreter gil_drop_request (GH-19927)Victor Stinner2020-05-052-2/+2
| | | | Move gil_drop_request member from _PyRuntimeState.ceval to PyInterpreterState.ceval.
* bpo-40513: Per-interpreter signals pending (GH-19924)Victor Stinner2020-05-052-2/+2
| | | | Move signals_pending from _PyRuntime.ceval to PyInterpreterState.ceval.
* bpo-40334: Make the PyPegen* and PyParser* APIs more consistent (GH-19839)Lysandros Nikolaou2020-05-011-19/+28
| | | | | | | | | This commit makes both APIs more consistent by doing the following: - Remove the `PyPegen_CodeObjectFrom*` functions, which weren't used and will probably not be needed. Functions like `Py_CompileStringObject` can be used instead. - Include a `const char *filename` parameter in `PyPegen_ASTFromString`. - Rename `PyPegen_ASTFromFile` to `PyPegen_ASTFromFilename`, because its signature is not the same with `PyParser_ASTFromFile`.
* bpo-40428: Remove PyTuple_ClearFreeList() function (GH-19769)Victor Stinner2020-04-291-0/+10
| | | | | | | | | | | | | | | | | | | Remove the following function from the C API: * PyAsyncGen_ClearFreeLists() * PyContext_ClearFreeList() * PyDict_ClearFreeList() * PyFloat_ClearFreeList() * PyFrame_ClearFreeList() * PyList_ClearFreeList() * PySet_ClearFreeList() * PyTuple_ClearFreeList() Make these functions private, move them to the internal C API and change their return type to void. Call explicitly PyGC_Collect() to free all free lists. Note: PySet_ClearFreeList() did nothing.
* bpo-40421: Add pyframe.h header file (GH-19755)Victor Stinner2020-04-282-3/+2
| | | | | | | | | | Add a new separated pyframe.h header file of the PyFrame public C API: it is included by Python.h. Add PyFrame_GetLineNumber() to the limited C API. Replace "struct _frame" with "PyFrameObject" in header files. PyFrameObject is now defined as struct _frame by pyframe.h which is included early enough in Python.h.
* bpo-40334: Support CO_FUTURE_BARRY_AS_BDFL in the new parser (GH-19721)Pablo Galindo2020-04-271-4/+7
| | | This commit also allows to pass flags to the new parser in all interfaces and fixes a bug in the parser generator that was causing to inline rules with actions, making them disappear.
* bpo-40334: Improve various PEG-Parser related stuff (GH-19669)Lysandros Nikolaou2020-04-231-0/+34
| | | The changes in this commit are all related to @vstinner's original review comments of the initial PEP 617 implementation PR.
* bpo-40302: Replace PY_INT64_T with int64_t (GH-19573)Victor Stinner2020-04-171-1/+1
| | | | | | | | | * Replace PY_INT64_T with int64_t * Replace PY_UINT32_T with uint32_t * Replace PY_UINT64_T with uint64_t sha3module.c no longer checks if PY_UINT64_T is defined since it's always defined and uint64_t is always available on platforms supported by Python.
* bpo-40302: Add pycore_byteswap.h header file (GH-19552)Victor Stinner2020-04-171-0/+89
| | | | | | | | | | | | | | Add a new internal pycore_byteswap.h header file with the following functions: * _Py_bswap16() * _Py_bswap32() * _Py_bswap64() Use these functions in _ctypes, sha256 and sha512 modules, and also use in the UTF-32 encoder. sha256, sha512 and _ctypes modules are now built with the internal C API.
* bpo-40170: Convert PyObject_IS_GC() macro to a function (GH-19464)Hai Shi2020-04-141-0/+9
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* bpo-40268: Move struct _gc_runtime_state to pycore_gc.h (GH-19515)Victor Stinner2020-04-143-102/+101
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* bpo-40232: Update PyOS_AfterFork_Child() to use _PyThread_at_fork_reinit() ↵Dong-hee Na2020-04-143-3/+7
| | | | (GH-19450)
* bpo-40268: Rename _PyInterpreterState_GET_UNSAFE() (GH-19509)Victor Stinner2020-04-141-1/+2
| | | | | | | Rename _PyInterpreterState_GET_UNSAFE() to _PyInterpreterState_GET() for consistency with _PyThreadState_GET() and to have a shorter name (help to fit into 80 columns). Add also "assert(tstate != NULL);" to the function.
* bpo-40268: Include explicitly pycore_interp.h (GH-19505)Victor Stinner2020-04-143-5/+6
| | | | pycore_pystate.h no longer includes pycore_interp.h: it's now included explicitly in files accessing PyInterpreterState.
* bpo-40241: Add pycore_interp.h header (GH-19499)Victor Stinner2020-04-132-165/+184
| | | | Move PyInterpreterState and related functions to a new internal pycore_interp.h header file.
* bpo-40268: Add pycore_runtime.h header file (GH-19493)Victor Stinner2020-04-132-121/+144
| | | | | | Move PyRuntimeState from pycore_pystate.h to pycore_runtime.h. Remove _PyGILState_check_enabled macro: access directly _PyRuntime.gilstate.check_enabled.
* bpo-40241: Add pycore_gc.h header file (GH-19494)Victor Stinner2020-04-132-1/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | Move the PyGC_Head structure and the following private macros to the internal C API: * _PyGCHead_FINALIZED() * _PyGCHead_NEXT() * _PyGCHead_PREV() * _PyGCHead_SET_FINALIZED() * _PyGCHead_SET_NEXT() * _PyGCHead_SET_PREV() * _PyGC_FINALIZED() * _PyGC_PREV_MASK * _PyGC_PREV_MASK_COLLECTING * _PyGC_PREV_MASK_FINALIZED * _PyGC_PREV_SHIFT * _PyGC_SET_FINALIZED() * _PyObject_GC_IS_TRACKED() * _PyObject_GC_MAY_BE_TRACKED() * _Py_AS_GC(o) Keep the private _PyGC_FINALIZED() macro in the public C API for backward compatibility with Python 3.8: make it an alias to the new PyObject_GC_IsFinalized() function. Move the SIZEOF_PYGC_HEAD constant from _testcapi module to _testinternalcapi module.
* bpo-40268: Add _PyInterpreterState_GetConfig() (GH-19492)Victor Stinner2020-04-131-0/+4
| | | | | | | | Don't access PyInterpreterState.config member directly anymore, but use new functions: * _PyInterpreterState_GetConfig() * _PyInterpreterState_SetConfig() * _Py_GetConfig()
* bpo-40082: trip_signal() uses the main interpreter (GH-19441)Victor Stinner2020-04-082-6/+11
| | | | | | | | | | | | | | | | | | | | | | Fix the signal handler: it now always uses the main interpreter, rather than trying to get the current Python thread state. The following function now accepts an interpreter, instead of a Python thread state: * _PyEval_SignalReceived() * _Py_ThreadCanHandleSignals() * _PyEval_AddPendingCall() * COMPUTE_EVAL_BREAKER() * SET_GIL_DROP_REQUEST(), RESET_GIL_DROP_REQUEST() * SIGNAL_PENDING_CALLS(), UNSIGNAL_PENDING_CALLS() * SIGNAL_PENDING_SIGNALS(), UNSIGNAL_PENDING_SIGNALS() * SIGNAL_ASYNC_EXC(), UNSIGNAL_ASYNC_EXC() Py_AddPendingCall() now uses the main interpreter if it fails to the current Python thread state. Convert _PyThreadState_GET() and PyInterpreterState_GET_UNSAFE() macros to static inline functions.
* bpo-37127: Remove _pending_calls.finishing (GH-19439)Victor Stinner2020-04-081-1/+0
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* bpo-40226: PyInterpreterState_Delete() deletes pending calls (GH-19436)Victor Stinner2020-04-081-3/+4
| | | | | | | | | | | | | | | PyInterpreterState_New() is now responsible to create pending calls, PyInterpreterState_Delete() now deletes pending calls. * Rename _PyEval_InitThreads() to _PyEval_InitGIL() and rename _PyEval_InitGIL() to _PyEval_FiniGIL(). * _PyEval_InitState() and PyEval_FiniState() now create and delete pending calls. _PyEval_InitState() now returns -1 on memory allocation failure. * Add init_interp_create_gil() helper function: code shared by Py_NewInterpreter() and Py_InitializeFromConfig(). * init_interp_create_gil() now also calls _PyEval_FiniGIL(), _PyEval_InitGIL() and _PyGILState_Init() in subinterpreters, but these functions now do nothing when called from a subinterpreter.
* bpo-40170: Add _PyIndex_Check() internal function (GH-19426)Victor Stinner2020-04-081-0/+22
| | | | | | | | | Add _PyIndex_Check() function to the internal C API: fast inlined verson of PyIndex_Check(). Add Include/internal/pycore_abstract.h header file. Replace PyIndex_Check() with _PyIndex_Check() in C files of Objects and Python subdirectories.
* bpo-40170: PyType_HasFeature() now always calls PyType_GetFlags() (GH-19378)Victor Stinner2020-04-071-1/+10
| | | | | | | | PyType_HasFeature() now always calls PyType_GetFlags() to hide implementation details. Previously, it accessed directly the PyTypeObject.tp_flags member when the limited C API was not used. Add fast inlined version _PyType_HasFeature() and _PyType_IS_GC() for object.c and typeobject.c.
* bpo-40170: PyObject_GET_WEAKREFS_LISTPTR() becomes a function (GH-19377)Victor Stinner2020-04-061-0/+7
| | | | | | | | Convert the PyObject_GET_WEAKREFS_LISTPTR() macro to a function to hide implementation details: the macro accessed directly to the PyTypeObject.tp_weaklistoffset member. Add _PyObject_GET_WEAKREFS_LISTPTR() static inline function to the internal C API.
* bpo-38644: Pass tstate explicitly in signalmodule.c (GH-19184)Victor Stinner2020-03-261-0/+2
| | | | PyOS_InterruptOccurred() now checks _Py_ThreadCanHandleSignals() before checking if SIGINT is tripped.
* bpo-38644: Add _PySys_Audit() which takes tstate (GH-19180)Victor Stinner2020-03-261-0/+24
| | | | | | | | | | | | | | | Add _PySys_Audit() function to the internal C API: similar to PySys_Audit(), but requires a mandatory tstate parameter. Cleanup sys_audit_tstate() code: remove code path for NULL tstate, since the function exits at entry if tstate is NULL. Remove also code path for NULL tstate->interp: should_audit() now ensures that it is not NULL (even if tstate->interp cannot be NULL in practice). PySys_AddAuditHook() now checks if tstate is not NULL to decide if tstate can be used or not, and tstate is set to NULL if the runtime is not initialized yet. Use _PySys_Audit() in sysmodule.c.
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