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* bpo-40513: Per-interpreter GIL (GH-19943)Victor Stinner2020-05-051-1/+5
| | | | | | | | 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-40513: new_interpreter() init GIL earlier (GH-19942)Victor Stinner2020-05-051-4/+4
| | | Fix also code to handle init_interp_main() failure.
* bpo-40453: Add PyConfig._isolated_subinterpreter (GH-19820)Victor Stinner2020-05-011-3/+10
| | | | | | | | | 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 imports in pylifecycle.c (GH-19533)Victor Stinner2020-04-151-31/+22
| | | | | | | | | | Remove unused imports in files: * initconfig.c * main.c * preconfig.h * pylifecycle.c * python.c * pythonrun.c
* bpo-40268: Remove unused osdefs.h includes (GH-19532)Victor Stinner2020-04-151-1/+0
| | | When the include is needed, add required symbol in a comment.
* bpo-40268: Remove unused pycore_pymem.h includes (GH-19531)Victor Stinner2020-04-151-1/+0
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* bpo-40268: Remove explicit pythread.h includes (#19529)Victor Stinner2020-04-151-2/+0
| | | | Remove explicit pythread.h includes: it is always included by Python.h.
* bpo-40268: Remove a few pycore_pystate.h includes (GH-19510)Victor Stinner2020-04-141-2/+2
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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 Stinner2020-04-131-1/+1
| | | | | | 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 Stinner2020-04-131-13/+13
| | | | | | | | 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 Stinner2020-04-081-17/+33
| | | | | | | | | | | | | | | 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.
* Document most common signals (GH-19245)Victor Stinner2020-03-311-1/+1
| | | | Document individual signals (only the most common signals): description, default action, availability.
* bpo-38644: Add _PySys_Audit() which takes tstate (GH-19180)Victor Stinner2020-03-261-5/+2
| | | | | | | | | | | | | | | 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.
* bpo-39882: Add _Py_FatalErrorFormat() function (GH-19157)Victor Stinner2020-03-251-28/+73
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* bpo-39984: Move pending calls to PyInterpreterState (GH-19066)Victor Stinner2020-03-191-1/+7
| | | | | | | | | | | | | | | | | If Py_AddPendingCall() is called in a subinterpreter, the function is now scheduled to be called from the subinterpreter, rather than being called from the main interpreter. Each subinterpreter now has its own list of scheduled calls. * Move pending and eval_breaker fields from _PyRuntimeState.ceval to PyInterpreterState.ceval. * new_interpreter() now calls _PyEval_InitThreads() to create pending calls lock. * Fix Py_AddPendingCall() for subinterpreters. It now calls _PyThreadState_GET() which works in a subinterpreter if the caller holds the GIL, and only falls back on PyGILState_GetThisThreadState() if _PyThreadState_GET() returns NULL.
* bpo-39984: Pass tstate to _PyEval_SignalAsyncExc() (GH-19049)Victor Stinner2020-03-181-1/+1
| | | | _PyEval_SignalAsyncExc() and _PyEval_FiniThreads() now expect tstate, instead of ceval.
* Remove unused args from two pylifecycle.c functions (GH-18867)Andy Lester2020-03-121-6/+5
| | | | * Remove unused tstate argument from init_set_builtins_open() * Replace fd (int) with tstate (PyThreadState *) in in _Py_FatalError_PrintExc()
* bpo-38631: _PyGILState_Init() returns PyStatus (GH-18908)Victor Stinner2020-03-101-1/+4
| | | | _PyGILState_Init() now returns PyStatus rather than calling Py_FatalError() on failure.
* bpo-19466: Py_Finalize() clears daemon threads earlier (GH-18848)Victor Stinner2020-03-091-0/+10
| | | | | | | | Clear the frames of daemon threads earlier during the Python shutdown to call objects destructors. So "unclosed file" resource warnings are now emitted for daemon threads in a more reliable way. Cleanup _PyThreadState_DeleteExcept() code: rename "garbage" to "list".
* bpo-39877: Py_Initialize() pass tstate to PyEval_InitThreads() (GH-18884)Victor Stinner2020-03-091-1/+4
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* bpo-39877: Fix PyEval_RestoreThread() for daemon threads (GH-18811)Victor Stinner2020-03-081-2/+2
| | | | | | | | | | | | | | | | | | | | * exit_thread_if_finalizing() does now access directly _PyRuntime variable, rather than using tstate->interp->runtime since tstate can be a dangling pointer after Py_Finalize() has been called. * exit_thread_if_finalizing() is now called *before* calling take_gil(). _PyRuntime.finalizing is an atomic variable, we don't need to hold the GIL to access it. * Add ensure_tstate_not_null() function to check that tstate is not NULL at runtime. Check tstate earlier. take_gil() does not longer check if tstate is NULL. Cleanup: * PyEval_RestoreThread() no longer saves/restores errno: it's already done inside take_gil(). * PyEval_AcquireLock(), PyEval_AcquireThread(), PyEval_RestoreThread() and _PyEval_EvalFrameDefault() now check if tstate is valid with the new is_tstate_valid() function which uses _PyMem_IsPtrFreed().
* bpo-39882: Py_FatalError() logs the function name (GH-18819)Victor Stinner2020-03-071-3/+11
| | | | | | | | | | | | The Py_FatalError() function is replaced with a macro which logs automatically the name of the current function, unless the Py_LIMITED_API macro is defined. Changes: * Add _Py_FatalErrorFunc() function. * Remove the function name from the message of Py_FatalError() calls which included the function name. * Update tests.
* bpo-39877: _PyRuntimeState.finalizing becomes atomic (GH-18816)Victor Stinner2020-03-071-5/+6
| | | | | | | | | | | | Convert _PyRuntimeState.finalizing field to an atomic variable: * Rename it to _finalizing * Change its type to _Py_atomic_address * Add _PyRuntimeState_GetFinalizing() and _PyRuntimeState_SetFinalizing() functions * Remove _Py_CURRENTLY_FINALIZING() function: replace it with testing directly _PyRuntimeState_GetFinalizing() value Convert _PyRuntimeState_GetThreadState() to static inline function.
* Add a comment to _Py_RestoreSignals() (GH-18792)Victor Stinner2020-03-051-0/+2
| | | subprocess _posix_spawn() should stay in sync with _Py_RestoreSignals().
* bpo-39796: Fix _warnings module initialization (GH-18739)Victor Stinner2020-03-021-2/+3
| | | | | | | | | * Add _PyWarnings_InitState() which only initializes the _warnings module state (tstate->interp->warnings) without creating a module object * Py_InitializeFromConfig() now calls _PyWarnings_InitState() instead of _PyWarnings_Init() * Rename also private functions of _warnings.c to avoid confusion between the public C API and the private C API.
* bpo-39542: Move object.h debug functions to internal C API (GH-18331)Victor Stinner2020-02-031-0/+1
| | | | | | | | Move the following functions from the public C API to the internal C API: * _PyDebug_PrintTotalRefs(), * _Py_PrintReferenceAddresses() * _Py_PrintReferences()
* bpo-39489: Remove COUNT_ALLOCS special build (GH-18259)Victor Stinner2020-02-031-15/+0
| | | | | | | | | | | Remove: * COUNT_ALLOCS macro * sys.getcounts() function * SHOW_ALLOC_COUNT code in listobject.c * SHOW_TRACK_COUNT code in tupleobject.c * PyConfig.show_alloc_count field * -X showalloccount command line option * @test.support.requires_type_collecting decorator
* bpo-38644: Pass tstate to _Py_FinishPendingCalls() (GH-17990)Victor Stinner2020-01-131-1/+1
| | | | _Py_FinishPendingCalls() now expects a tstate argument, instead of a runtime argument.
* closes bpo-39261: Remove dead assignment from pyinit_config. (GH-17907)Alex Henrie2020-01-081-1/+0
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* bpo-13601: always use line-buffering for sys.stderr (GH-17646)Jendrik Seipp2020-01-011-1/+1
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* bpo-38858: Small integer per interpreter (GH-17315)Victor Stinner2019-12-171-4/+9
| | | | | | | | | | | | Each Python subinterpreter now has its own "small integer singletons": numbers in [-5; 257] range. It is no longer possible to change the number of small integers at build time by overriding NSMALLNEGINTS and NSMALLPOSINTS macros: macros should now be modified manually in pycore_pystate.h header file. For now, continue to share _PyLong_Zero and _PyLong_One singletons between all subinterpreters.
* bpo-38858: Fix ref leak in pycore_interp_init() (GH-17512)Victor Stinner2019-12-081-5/+10
| | | | | bpo-38858, bpo-38997: _PySys_Create() returns a strong reference to the sys module: Py_DECREF() is needed when we are done with the module.
* bpo-38858: Add pycore_interp_init() code to factorize code (GH-17483)Victor Stinner2019-12-061-32/+24
| | | | Add a new pycore_interp_init() function called by new_interpreter() and pyinit_config().
* bpo-38858: new_interpreter() reuses _PySys_Create() (GH-17481)Victor Stinner2019-12-061-49/+32
| | | | | | | new_interpreter() now calls _PySys_Create() to create a new sys module isolated from the main interpreter. It now calls _PySys_InitCore() and _PyImport_FixupBuiltin(). init_interp_main() now calls _PySys_InitMain().
* Remove unused variable in Python/pylifecycle.c (GH-17475)Pablo Galindo2019-12-051-2/+0
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* bpo-38962: Fix reference leak in the per-subinterpreter gc (GH-17457)Pablo Galindo2019-12-041-6/+5
| | | | | | | https://bugs.python.org/issue38962 Automerge-Triggered-By: @pablogsal
* bpo-38962: Fix reference leak in new_interpreter() (GH-17453)Pablo Galindo2019-12-041-0/+2
| | | | | | | https://bugs.python.org/issue38962 Automerge-Triggered-By: @pablogsal
* bpo-38858: new_interpreter() uses pycore_init_import_warnings() (GH-17353)Victor Stinner2019-11-221-14/+11
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* bpo-38858: new_interpreter() reuses pycore_init_builtins() (GH-17351)Victor Stinner2019-11-221-29/+24
| | | | | | | | | new_interpreter() now calls _PyBuiltin_Init() to create the builtins module and calls _PyImport_FixupBuiltin(), rather than using _PyImport_FindBuiltin(tstate, "builtins"). pycore_init_builtins() is now responsible to initialize intepr->builtins_copy: inline _PyImport_Init() and remove this function.
* bpo-38858: Add init_interp_main() subfunction (GH-17347)Victor Stinner2019-11-221-103/+109
| | | | Fix new_interpreter() error handling: undo it all if status is an exception.
* bpo-38858: Add init_set_builtins_open() subfunction (GH-17346)Victor Stinner2019-11-221-18/+50
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* bpo-38858: Call _PyUnicode_Fini() in Py_EndInterpreter() (GH-17330)Victor Stinner2019-11-221-5/+5
| | | Py_EndInterpreter() now clears the filesystem codec.
* bpo-36854: Fix refleak in subinterpreter (GH-17331)Victor Stinner2019-11-221-0/+8
| | | | finalize_interp_clear() now explicitly clears the codec registry and then trigger a GC collection to clear all references.
* bpo-38858: Fix Py_Finalize() when called from a subinterpreter (GH-17297)Victor Stinner2019-11-201-11/+18
| | | | Use _Py_IsMainInterpreter() in Py_Initialize() and Py_Finalize() to detect if the current interpreter is the main interpreter or not.
* bpo-37340: Remove PyMethod_ClearFreeList() and PyCFunction_ClearFreeList() ↵Victor Stinner2019-11-201-2/+0
| | | | | | | | (GH-17284) Remove PyMethod_ClearFreeList() and PyCFunction_ClearFreeList() functions: the free lists of bound method objects have been removed. Remove also _PyMethod_Fini() and _PyCFunction_Fini() functions.
* bpo-36854: Move _PyRuntimeState.gc to PyInterpreterState (GH-17287)Victor Stinner2019-11-201-1/+2
| | | | | * Rename _PyGC_InitializeRuntime() to _PyGC_InitState() * finalize_interp_clear() now also calls _PyGC_Fini() in subinterpreters (clear the GC state).
* bpo-38858: Fix reference leak in pycore_init_types() (GH-17286)Victor Stinner2019-11-201-20/+26
| | | | Only call _PyGC_Init(), _PyExc_Init() and _PyErr_Init() in new_interpreter().
* bpo-36854: Clear the current thread later (GH-17279)Victor Stinner2019-11-201-4/+1
| | | | | | | | | | Clear the current thread later in the Python finalization. * The PyInterpreterState_Delete() function is now responsible to call PyThreadState_Swap(NULL). * The tstate_delete_common() function is now responsible to clear the "autoTSSKey" thread local storage and it only clears it once the thread state is fully cleared. It allows to still get the current thread from TSS in tstate_delete_common().
* bpo-38858: Factorize Py_EndInterpreter() code (GH-17273)Victor Stinner2019-11-201-52/+76
| | | | | | * Factorize code in common between Py_FinalizeEx() and Py_EndInterpreter(). * Py_EndInterpreter() now also calls _PyWarnings_Fini(). * Call _PyExc_Fini() and _PyGC_Fini() later in the finalization.
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