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* bpo-40521: Make slice cache per-interpreter (GH-20637)Victor Stinner2020-06-041-1/+1
| | | | | | Each interpreter now has its own slice cache: * Move slice cache into PyInterpreterState. * Add tstate parameter to _PySlice_Fini().
* bpo-40521: Make float free list per-interpreter (GH-20636)Victor Stinner2020-06-041-1/+1
| | | | | | | | Each interpreter now has its own float free list: * Move tuple numfree and free_list into PyInterpreterState. * Add _Py_float_state structure. * Add tstate parameter to _PyFloat_ClearFreeList() and _PyFloat_Fini().
* bpo-40521: Make tuple free list per-interpreter (GH-20247)Victor Stinner2020-06-041-1/+3
| | | | | | | | | | Each interpreter now has its own tuple free lists: * Move tuple numfree and free_list arrays into PyInterpreterState. * Define PyTuple_MAXSAVESIZE and PyTuple_MAXFREELIST macros in pycore_interp.h. * Add _Py_tuple_state structure. Pass it explicitly to tuple_alloc(). * Add tstate parameter to _PyTuple_ClearFreeList() * Each interpreter now has its own empty tuple singleton.
* 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 Stinner2020-03-061-3/+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 Stinner2020-03-061-5/+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 Henrie2020-01-091-1/+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).
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