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* bpo-45256: Rationalize code around Python-to-Python calls a bit. (GH-29235)Mark Shannon2021-10-281-6/+16
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* bpo-45637: Store the frame pointer in the cframe (GH-29267)Mark Shannon2021-10-281-5/+5
| | | * Rename 'frame' to 'current_frame'
* bpo-43760: Rename _PyThreadState_DisableTracing() (GH-29032)Victor Stinner2021-10-181-2/+2
| | | | | | * Rename _PyThreadState_DisableTracing() to _PyThreadState_PauseTracing() * Rename _PyThreadState_ResetTracing() to _PyThreadState_ResumeTracing()
* bpo-43760: Add PyThreadState_EnterTracing() (GH-28542)Victor Stinner2021-10-151-0/+16
| | | | | | | | | | Add PyThreadState_EnterTracing() and PyThreadState_LeaveTracing() functions to the limited C API to suspend and resume tracing and profiling. Add an unit test on the PyThreadState C API to _testcapi. Add also internal _PyThreadState_DisableTracing() and _PyThreadState_ResetTracing().
* pycore_pystate.h no longer redefines PyThreadState_GET() (GH-28921)Victor Stinner2021-10-131-2/+5
| | | | | | | | | | | | | | | | | | | | | | Redefining the PyThreadState_GET() macro in pycore_pystate.h is useless since it doesn't affect files not including it. Either use _PyThreadState_GET() directly, or don't use pycore_pystate.h internal C API. For example, the _testcapi extension don't use the internal C API, but use the public PyThreadState_Get() function instead. Replace PyThreadState_Get() with _PyThreadState_GET(). The _PyThreadState_GET() macro is more efficient than PyThreadState_Get() and PyThreadState_GET() function calls which call fail with a fatal Python error. posixmodule.c and _ctypes extension now include <windows.h> before pycore header files (like pycore_call.h). _PyTraceback_Add() now uses _PyErr_Fetch()/_PyErr_Restore() instead of PyErr_Fetch()/PyErr_Restore(). The _decimal and _xxsubinterpreters extensions are now built with the Py_BUILD_CORE_MODULE macro defined to get access to the internal C API.
* Restore PEP 523 functionality. (GH-28871)Mark Shannon2021-10-111-2/+10
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* bpo-44990: Change layout of evaluation frames. "Layout B" (GH-27933)Mark Shannon2021-08-251-10/+10
| | | Places the locals between the specials and stack. This is the more "natural" layout for a C struct, makes the code simpler and gives a slight speedup (~1%)
* bpo-44590: Lazily allocate frame objects (GH-27077)Mark Shannon2021-07-261-29/+52
| | | | | | | | | | | | | | * Convert "specials" array to InterpreterFrame struct, adding f_lasti, f_state and other non-debug FrameObject fields to it. * Refactor, calls pushing the call to the interpreter upward toward _PyEval_Vector. * Compute f_back when on thread stack, only filling in value when frame object outlives stack invocation. * Move ownership of InterpreterFrame in generator from frame object to generator object. * Do not create frame objects for Python calls. * Do not create frame objects for generators.
* bpo-44348: Move trace-info to thread-state (GH-26623)Mark Shannon2021-06-101-0/+2
| | | | | * Move trace-info to thread state. * Correct output for pdb when turning on tracing in middle of line
* bpo-43879: Add native_thread_id field to PyThreadState (GH-25458)Gabriele N. Tornetta2021-05-261-0/+5
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* bpo-44032: Delay deletion of stack chunks until thread state is deleted. ↵Mark Shannon2021-05-241-7/+7
| | | | (GH-26285)
* bpo-44032: Move data stack to thread from FrameObject. (GH-26076)Mark Shannon2021-05-211-1/+85
| | | | | | | | | | | | | | | | * Remove 'zombie' frames. We won't need them once we are allocating fixed-size frames. * Add co_nlocalplus field to code object to avoid recomputing size of locals + frees + cells. * Move locals, cells and freevars out of frame object into separate memory buffer. * Use per-threadstate allocated memory chunks for local variables. * Move globals and builtins from frame object to per-thread stack. * Move (slow) locals frame object to per-thread stack. * Move internal frame functions to internal header.
* bpo-43977: Use tp_flags for collection matching (GH-25723)Mark Shannon2021-04-301-2/+0
| | | | | | | | | | | | | * Add Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING, add to all relevant standard builtin classes. * Set relevant flags on collections.abc.Sequence and Mapping. * Use flags in MATCH_SEQUENCE and MATCH_MAPPING opcodes. * Inherit Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING. * Add NEWS * Remove interpreter-state map_abc and seq_abc fields.
* bpo-43962: Fix _PyInterpreterState_IDIncref() (GH-25683)Victor Stinner2021-04-281-6/+7
| | | | _PyInterpreterState_IDIncref() now calls _PyInterpreterState_IDInitref() and always increments id_refcount.
* bpo-43760: Speed up check for tracing in interpreter dispatch (#25276)Mark Shannon2021-04-131-1/+2
| | | | | | | | | * Remove redundant tracing_possible field from interpreter state. * Move 'use_tracing' from tstate onto C stack, for fastest possible checking in dispatch logic. * Add comments stressing the importance stack discipline when dealing with CFrames. * Add NEWS
* bpo-43311: Create GIL autoTSSkey ealier (GH-24819)Victor Stinner2021-03-101-4/+15
| | | | | | At Python startup, call _PyGILState_Init() before PyInterpreterState_New() which calls _PyThreadState_GET(). When Python is built using --with-experimental-isolated-subinterpreters, _PyThreadState_GET() uses autoTSSkey.
* bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)Brandt Bucher2021-02-261-0/+2
| | | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Talin <viridia@gmail.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-43268: Pass interp rather than tstate to internal functions (GH-24580)Victor Stinner2021-02-191-4/+4
| | | | | | | | | | | | | | | Pass the current interpreter (interp) rather than the current Python thread state (tstate) to internal functions which only use the interpreter. Modified functions: * _PyXXX_Fini() and _PyXXX_ClearFreeList() functions * _PyEval_SignalAsyncExc(), make_pending_calls() * _PySys_GetObject(), sys_set_object(), sys_set_object_id(), sys_set_object_str() * should_audit(), set_flags_from_config(), make_flags() * _PyAtExit_Call() * init_stdio_encoding() * etc.
* bpo-43268: _Py_IsMainInterpreter() now expects interp (GH-24577)Victor Stinner2021-02-191-1/+1
| | | | The _Py_IsMainInterpreter() function now expects interp rather than tstate.
* bpo-42882: Fix MSVC warnings in pystate.c (GH-24440)Ken Jin2021-02-041-1/+1
| | | _PyRuntimeState.unicode_ids.next_index type is Py_ssize_t.
* bpo-42882: _PyRuntimeState_Init() leaves unicode next_index unchanged (GH-24193)Victor Stinner2021-01-121-1/+4
| | | | | | | | Fix the _PyUnicode_FromId() function (_Py_IDENTIFIER(var) API) when Py_Initialize() / Py_Finalize() is called multiple times: preserve _PyRuntime.unicode_ids.next_index value. Use _PyRuntimeState_INIT macro instead memset(0) to reset _PyRuntimeState members to zero.
* bpo-42745: Make the type cache per-interpreter (GH-23947)Victor Stinner2020-12-261-0/+2
| | | | | | | | | | | Make the type attribute lookup cache per-interpreter. Add private _PyType_InitCache() function, called by PyInterpreterState_New(). Continue to share next_version_tag between interpreters, since static types are still shared by interpreters. Remove MCACHE macro: the cache is no longer disabled if the EXPERIMENTAL_ISOLATED_SUBINTERPRETERS macro is defined.
* bpo-39465: Fix _PyUnicode_FromId() for subinterpreters (GH-20058)Victor Stinner2020-12-251-11/+19
| | | | | | | | | | | | | | | | | Make _PyUnicode_FromId() function compatible with subinterpreters. Each interpreter now has an array of identifier objects (interned strings decoded from UTF-8). * Add PyInterpreterState.unicode.identifiers: array of identifiers objects. * Add _PyRuntimeState.unicode_ids used to allocate unique indexes to _Py_Identifier. * Rewrite the _Py_Identifier structure. Microbenchmark on _PyUnicode_FromId(&PyId_a) with _Py_IDENTIFIER(a): [ref] 2.42 ns +- 0.00 ns -> [atomic] 3.39 ns +- 0.00 ns: 1.40x slower This change adds 1 ns per _PyUnicode_FromId() call in average.
* bpo-42639: Move atexit state to PyInterpreterState (GH-23763)Victor Stinner2020-12-151-0/+1
| | | | | | | | | * Add _PyAtExit_Call() function and remove pyexitfunc and pyexitmodule members of PyInterpreterState. The function logs atexit callback errors using _PyErr_WriteUnraisableMsg(). * Add _PyAtExit_Init() and _PyAtExit_Fini() functions. * Remove traverse, clear and free functions of the atexit module. Co-authored-by: Dong-hee Na <donghee.na@python.org>
* bpo-42500: Fix recursion in or after except (GH-23568)Mark Shannon2020-12-021-1/+1
| | | * Use counter, rather boolean state when handling soft overflows.
* bpo-42260: Add _PyInterpreterState_SetConfig() (GH-23158)Victor Stinner2020-11-041-5/+11
| | | | | | | | * Inline _PyInterpreterState_SetConfig(): replace it with _PyConfig_Copy(). * Add _PyErr_SetFromPyStatus() * Add _PyInterpreterState_GetConfigCopy() * Add a new _PyInterpreterState_SetConfig() function. * Add an unit which gets, modifies, and sets the config.
* bpo-41796: Call _PyAST_Fini() earlier to fix a leak (GH-23131)Victor Stinner2020-11-031-4/+7
| | | | | | | | | | | | | | | Call _PyAST_Fini() on all interpreters, not only on the main interpreter. Also, call it ealier to fix a reference leak. Python types contain a reference to themselves in in their PyTypeObject.tp_mro member. _PyAST_Fini() must called before the last GC collection to destroy AST types. _PyInterpreterState_Clear() now calls _PyAST_Fini(). It now also calls _PyWarnings_Fini() on subinterpeters, not only on the main interpreter. Add an assertion in AST init_types() to ensure that the _ast module is no longer used after _PyAST_Fini() has been called.
* bpo-41435: Add sys._current_exceptions() function (GH-21689)Julien Danjou2020-11-021-0/+63
| | | | | | This adds a new function named sys._current_exceptions() which is equivalent ot sys._current_frames() except that it returns the exceptions currently handled by other threads. It is equivalent to calling sys.exc_info() for each running thread.
* bpo-42208: Call GC collect earlier in PyInterpreterState_Clear() (GH-23044)Victor Stinner2020-10-301-5/+27
| | | | | | | | The last GC collection is now done before clearing builtins and sys dictionaries. Add also assertions to ensure that gc.collect() is no longer called after _PyGC_Fini(). Pass also the tstate to PyInterpreterState_Clear() to pass the correct tstate to _PyGC_CollectNoFail() and _PyGC_Fini().
* bpo-41936. Remove macros Py_ALLOW_RECURSION/Py_END_ALLOW_RECURSION (GH-22552)Serhiy Storchaka2020-10-051-1/+0
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* bpo-1635741: Clean sysdict and builtins of interpreter at exit (GH-21605)Hai Shi2020-08-121-2/+8
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* bpo-40834: Fix truncate when sending str object with channel (GH-20555)An Long2020-06-131-1/+1
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* PyOS_AfterFork_Child() uses PyStatus (GH-20596)Victor Stinner2020-06-021-22/+23
| | | | | | | | PyOS_AfterFork_Child() helper functions now return a PyStatus: PyOS_AfterFork_Child() is now responsible to handle errors. * Move _PySignal_AfterFork() to the internal C API * Add #ifdef HAVE_FORK on _PyGILState_Reinit(), _PySignal_AfterFork() and _PyInterpreterState_DeleteExceptMain().
* bpo-40826: Add _Py_EnsureTstateNotNULL() macro (GH-20571)Victor Stinner2020-06-011-14/+4
| | | | Add _Py_EnsureTstateNotNULL(tstate) macro: call Py_FatalError() if tstate is NULL, the error message contains the current function name.
* bpo-40522: _PyThreadState_Swap() sets autoTSSkey (GH-19939)Victor Stinner2020-05-051-0/+17
| | | | | | | | | | | | | | | | | | 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.
* bpo-40429: PyThreadState_GetFrame() returns a strong ref (GH-19781)Victor Stinner2020-04-291-3/+5
| | | | The PyThreadState_GetFrame() function now returns a strong reference to the frame.
* bpo-40302: Replace PY_INT64_T with int64_t (GH-19573)Victor Stinner2020-04-171-3/+3
| | | | | | | | | * 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-40268: Remove unused pycore_pymem.h includes (GH-19531)Victor Stinner2020-04-151-1/+1
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* bpo-40232: Update PyOS_AfterFork_Child() to use _PyThread_at_fork_reinit() ↵Dong-hee Na2020-04-141-6/+8
| | | | (GH-19450)
* bpo-40268: Remove a few pycore_pystate.h includes (GH-19510)Victor Stinner2020-04-141-1/+1
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* bpo-40268: Rename _PyInterpreterState_GET_UNSAFE() (GH-19509)Victor Stinner2020-04-141-1/+1
| | | | | | | 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: Add pycore_runtime.h header file (GH-19493)Victor Stinner2020-04-131-3/+2
| | | | | | Move PyRuntimeState from pycore_pystate.h to pycore_runtime.h. Remove _PyGILState_check_enabled macro: access directly _PyRuntime.gilstate.check_enabled.
* bpo-40268: Add _PyInterpreterState_GetConfig() (GH-19492)Victor Stinner2020-04-131-1/+25
| | | | | | | | Don't access PyInterpreterState.config member directly anymore, but use new functions: * _PyInterpreterState_GetConfig() * _PyInterpreterState_SetConfig() * _Py_GetConfig()
* bpo-40226: PyInterpreterState_Delete() deletes pending calls (GH-19436)Victor Stinner2020-04-081-1/+22
| | | | | | | | | | | | | | | 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-38644: Make tstate more explicit inside pystate.c (GH-19182)Victor Stinner2020-03-261-47/+61
| | | | Fix PyInterpreterState_New(): Don't call PyErr_SetString() when there is no current Python thread state (if tstate is NULL).
* bpo-39947: Add PyThreadState_GetID() function (GH-19163)Victor Stinner2020-03-251-0/+8
| | | | Add PyThreadState_GetID() function: get the unique identifier of a Python thread state.
* bpo-39947: Add _PyThreadState_GetDict() function (GH-19160)Victor Stinner2020-03-251-9/+18
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* bpo-39882: Add _Py_FatalErrorFormat() function (GH-19157)Victor Stinner2020-03-251-12/+18
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* Use calloc-based functions, not malloc. (GH-19152)Andy Lester2020-03-251-2/+1
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* bpo-20526: Fix PyThreadState_Clear(): don't decref frame (GH-19120)Victor Stinner2020-03-241-2/+10
| | | | | | | | PyThreadState.frame is a borrowed reference, not a strong reference: PyThreadState_Clear() must not call Py_CLEAR(tstate->frame). Remove test_threading.test_warnings_at_exit(): we cannot warranty that the Python thread state of daemon threads is cleared in a reliable way during Python shutdown.
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