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* bpo-33615: Re-enable a subinterpreter test. (gh-7251)Eric Snow2018-06-021-18/+37
| | | For bpo-32604 I added extra subinterpreter-related tests (see #6914), which caused a few buildbots to crash. This patch fixes the crash by ensuring that refcounts in channels are handled properly.
* bpo-33612: Remove PyThreadState_Clear() assertion (#7069)Victor Stinner2018-05-231-1/+0
| | | | | bpo-25612, bpo-33612: Remove an assertion from PyThreadState_Clear() which failed at Python shutdown or on fork if a thread was running a generator.
* bpo-32604: Improve subinterpreter tests. (#6914)Eric Snow2018-05-161-3/+77
| | | Add more tests for subinterpreters. This patch also fixes a few small defects in the channel implementation.
* bpo-33005: Fix _PyGILState_Reinit() (#6001)Victor Stinner2018-03-061-4/+23
| | | | | | | | Fix a crash on fork when using a custom memory allocator (ex: using PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable() now use the default RAW memory allocator to allocate a new interpreters mutex on fork.
* bpo-32604: Swap threads only if the interpreter is different. (gh-5778)Eric Snow2018-02-201-6/+14
| | | The CPython runtime assumes that there is a one-to-one relationship (for a given interpreter) between PyThreadState and OS threads. Sending and receiving on a channel in the same interpreter was causing crashes because of this (specifically due to a check in PyThreadState_Swap()). The solution is to not switch threads if the interpreter is the same.
* bpo-32604: Clean up created subinterpreters before runtime finalization. ↵Eric Snow2018-02-171-1/+57
| | | | | | (gh-5709)
* bpo-32604: Fix memory leaks in the new _xxsubinterpreters module. (#5507)Eric Snow2018-02-031-0/+1
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* bpo-32604: Expose the subinterpreters C-API in a "private" stdlib module. ↵Eric Snow2018-01-301-1/+274
| | | | | (gh-1748) The module is primarily intended for internal use in the test suite. Building the module under Windows will come in a follow-up PR.
* bpo-32436: Implement PEP 567 (#5027)Yury Selivanov2018-01-231-0/+9
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* bpo-32591: Add native coroutine origin tracking (#5250)Nathaniel J. Smith2018-01-211-0/+2
| | | | | | * Add coro.cr_origin and sys.set_coroutine_origin_tracking_depth * Use coroutine origin information in the unawaited coroutine warning * Stop using set_coroutine_wrapper in asyncio debug mode * In BaseEventLoop.set_debug, enable debugging in the correct thread
* bpo-31901: atexit callbacks should be run at subinterpreter shutdown (#4611)Marcel Plch2017-12-201-0/+2
| | | | Change atexit behavior and PEP-489 multiphase init support.
* bpo-32030: Add _PyCoreConfig_Copy() (#4874)Victor Stinner2017-12-151-0/+2
| | | | | | | | | | Each interpreter now has its core_config and main_config copy: * Add _PyCoreConfig_Copy() and _PyMainInterpreterConfig_Copy() * Move _PyCoreConfig_Read(), _PyCoreConfig_Clear() and _PyMainInterpreterConfig_Clear() from Python/pylifecycle.c to Modules/main.c * Fix _Py_InitializeEx_Private(): call _PyCoreConfig_ReadEnv() before _Py_InitializeCore()
* bpo-20891: Fix PyGILState_Ensure() (#4650)Victor Stinner2017-11-301-6/+18
| | | | | | | When PyGILState_Ensure() is called in a non-Python thread before PyEval_InitThreads(), only call PyEval_InitThreads() after calling PyThreadState_New() to fix a crash. Add an unit test in test_embed.
* bpo-32030: Rework memory allocators (#4625)Victor Stinner2017-11-291-7/+19
| | | | | | | | | | | | | | | | | | | | * Fix _PyMem_SetupAllocators("debug"): always restore allocators to the defaults, rather than only caling _PyMem_SetupDebugHooks(). * Add _PyMem_SetDefaultAllocator() helper to set the "default" allocator. * Add _PyMem_GetAllocatorsName(): get the name of the allocators * main() now uses debug hooks on memory allocators if Py_DEBUG is defined, rather than calling directly malloc() * Document default memory allocators in C API documentation * _Py_InitializeCore() now fails with a fatal user error if PYTHONMALLOC value is an unknown memory allocator, instead of failing with a fatal internal error. * Add new tests on the PYTHONMALLOC environment variable * Add support.with_pymalloc() * Add the _testcapi.WITH_PYMALLOC constant and expose it as support.with_pymalloc(). * sysconfig.get_config_var('WITH_PYMALLOC') doesn't work on Windows, so replace it with support.with_pymalloc(). * pythoninfo: add _testcapi collector for pymem
* bpo-32096: Remove obj and mem from _PyRuntime (#4532)Victor Stinner2017-11-241-2/+0
| | | | | | | | | | | | | | | | | bpo-32096, bpo-30860: Partially revert the commit 2ebc5ce42a8a9e047e790aefbf9a94811569b2b6: * Move structures back from Include/internal/mem.h to Objects/obmalloc.c * Remove _PyObject_Initialize() and _PyMem_Initialize() * Remove Include/internal/pymalloc.h * Add test_capi.test_pre_initialization_api(): Make sure that it's possible to call Py_DecodeLocale(), and then call Py_SetProgramName() with the decoded string, before Py_Initialize(). PyMem_RawMalloc() and Py_DecodeLocale() can be called again before _PyRuntimeState_Init(). Co-Authored-By: Eric Snow <ericsnowcurrently@gmail.com>
* bpo-32030: Add _PyCoreConfig.module_search_path_env (#4504)Victor Stinner2017-11-221-40/+45
| | | | | | | | | | | Changes: * Py_Main() initializes _PyCoreConfig.module_search_path_env from the PYTHONPATH environment variable. * PyInterpreterState_New() now initializes core_config and config fields * Compute sys.path a little bit ealier in _Py_InitializeMainInterpreter() and new_interpreter() * Add _Py_GetPathWithConfig() private function.
* bpo-32043: New "developer mode": "-X dev" option (#4413)Victor Stinner2017-11-161-0/+8
| | | | | | | | | | | | | Add a new "developer mode": new "-X dev" command line option to enable debug checks at runtime. Changes: * Add unit tests for -X dev * test_cmd_line: replace test.support with support. * Fix _PyRuntimeState_Fini(): Use the same memory allocator than _PyRuntimeState_Init(). * Fix _PyMem_GetDefaultRawAllocator()
* bpo-32030: Enhance Py_Main() (#4412)Victor Stinner2017-11-161-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Parse more env vars in Py_Main(): * Add more options to _PyCoreConfig: * faulthandler * tracemalloc * importtime * Move code to parse environment variables from _Py_InitializeCore() to Py_Main(). This change fixes a regression from Python 3.6: PYTHONUNBUFFERED is now read before calling pymain_init_stdio(). * _PyFaulthandler_Init() and _PyTraceMalloc_Init() now take an argument to decide if the module has to be enabled at startup. * tracemalloc_start() is now responsible to check the maximum number of frames. Other changes: * Cleanup Py_Main(): * Rename some pymain_xxx() subfunctions * Add pymain_run_python() subfunction * Cleanup Py_NewInterpreter() * _PyInterpreterState_Enable() now reports failure * init_hash_secret() now considers pyurandom() failure as an "user error": don't fail with abort(). * pymain_optlist_append() and pymain_strdup() now sets err on memory allocation failure.
* bpo-32030: Split Py_Main() into subfunctions (#4399)Victor Stinner2017-11-151-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Don't use "Python runtime" anymore to parse command line options or to get environment variables: pymain_init() is now a strict separation. * Use an error message rather than "crashing" directly with Py_FatalError(). Limit the number of calls to Py_FatalError(). It prepares the code to handle errors more nicely later. * Warnings options (-W, PYTHONWARNINGS) and "XOptions" (-X) are now only added to the sys module once Python core is properly initialized. * _PyMain is now the well identified owner of some important strings like: warnings options, XOptions, and the "program name". The program name string is now properly freed at exit. pymain_free() is now responsible to free the "command" string. * Rename most methods in Modules/main.c to use a "pymain_" prefix to avoid conflits and ease debug. * Replace _Py_CommandLineDetails_INIT with memset(0) * Reorder a lot of code to fix the initialization ordering. For example, initializing standard streams now comes before parsing PYTHONWARNINGS. * Py_Main() now handles errors when adding warnings options and XOptions. * Add _PyMem_GetDefaultRawAllocator() private function. * Cleanup _PyMem_Initialize(): remove useless global constants: move them into _PyMem_Initialize(). * Call _PyRuntime_Initialize() as soon as possible: _PyRuntime_Initialize() now returns an error message on failure. * Add _PyInitError structure and following macros: * _Py_INIT_OK() * _Py_INIT_ERR(msg) * _Py_INIT_USER_ERR(msg): "user" error, don't abort() in that case * _Py_INIT_FAILED(err)
* Fix trailing whitespaces in C files. (#4130)Serhiy Storchaka2017-10-261-1/+1
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* bpo-31857: Make the behavior of USE_STACKCHECK deterministic (#4098)pdox2017-10-261-0/+1
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* Move exc state to generator. Fixes bpo-25612 (#1773)Mark Shannon2017-10-221-6/+15
| | | Move exception state information from frame objects to coroutine (generator/thread) object where it belongs.
* bpo-25658: Implement PEP 539 for Thread Specific Storage (TSS) API (GH-1362)Masayuki Yamamoto2017-10-061-33/+38
| | | | | | | | | See PEP 539 for details. Highlights of changes: - Add Thread Specific Storage (TSS) API - Document the Thread Local Storage (TLS) API as deprecated - Update code that used TLS API to use TSS API
* bpo-30860: Fix a refleak. (#3567)Eric Snow2017-09-141-2/+0
| | | | | Resolves bpo-31420. (This was accidentally reverted when in #3565.)
* bpo-31404: Revert "remove modules from Py_InterpreterState (#1638)" (#3565)Eric Snow2017-09-141-0/+4
| | | PR #1638, for bpo-28411, causes problems in some (very) edge cases. Until that gets sorted out, we're reverting the merge. PR #3506, a fix on top of #1638, is also getting reverted.
* bpo-30860: Fix a refleak. (#3506)Eric Snow2017-09-121-2/+0
| | | | | | | | | | | | | | * Drop warnoptions from PyInterpreterState. * Drop xoptions from PyInterpreterState. * Don't set warnoptions and _xoptions again. * Decref after adding to sys.__dict__. * Drop an unused macro. * Check sys.xoptions *before* we delete it.
* bpo-30860: Consolidate stateful runtime globals. (#3397)Eric Snow2017-09-081-81/+100
| | | | | | | * group the (stateful) runtime globals into various topical structs * consolidate the topical structs under a single top-level _PyRuntimeState struct * add a check-c-globals.py script that helps identify runtime globals Other globals are excluded (see globals.txt and check-c-globals.py).
* bpo-31370: Remove support for threads-less builds (#3385)Antoine Pitrou2017-09-071-29/+1
| | | | | | * Remove Setup.config * Always define WITH_THREAD for compatibility.
* Revert "bpo-30860: Consolidate stateful runtime globals." (#3379)Eric Snow2017-09-061-107/+88
| | | Windows buildbots started failing due to include-related errors.
* correct initialization code (#3376)Benjamin Peterson2017-09-061-2/+1
| | | Explicitly initialize struct members rather than relying on compiler extensions.
* bpo-30860: Consolidate stateful runtime globals. (#2594)Eric Snow2017-09-061-88/+108
| | | | | | | | | * group the (stateful) runtime globals into various topical structs * consolidate the topical structs under a single top-level _PyRuntimeState struct * add a check-c-globals.py script that helps identify runtime globals Other globals are excluded (see globals.txt and check-c-globals.py).
* bpo-28411: Remove "modules" field from Py_InterpreterState. (#1638)Eric Snow2017-09-041-2/+0
| | | sys.modules is the one true source.
* bpo-30604: clean up co_extra support (#2144)Dino Viehland2017-06-211-1/+1
| | | bpo-30604: port fix from 3.6 dropping binary compatibility tweaks
* Doc nits for bpo-16500 (#1841)Antoine Pitrou2017-05-281-1/+1
| | | | | | * Doc nits for bpo-16500 * Fix more references
* bpo-16500: Allow registering at-fork handlers (#1715)Antoine Pitrou2017-05-271-0/+10
| | | | | | | | | | | | * bpo-16500: Allow registering at-fork handlers * Address Serhiy's comments * Add doc for new C API * Add doc for new Python-facing function * Add NEWS entry + doc nit
* bpo-22257: Small changes for PEP 432. (#1728)Eric Snow2017-05-231-0/+16
| | | PEP 432 specifies a number of large changes to interpreter startup code, including exposing a cleaner C-API. The major changes depend on a number of smaller changes. This patch includes all those smaller changes.
* bpo-29102: Add a unique ID to PyInterpreterState. (#1639)Eric Snow2017-05-231-0/+37
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* bpo-30395 _PyGILState_Reinit deadlock fix (#1734)Jason Fried2017-05-221-0/+4
| | | | head_lock could be held by another thread when fork happened. We should reset it to avoid deadlock.
* bpo-6532: Make the thread id an unsigned integer. (#781)Serhiy Storchaka2017-03-231-2/+3
| | | | | | | | | | | * bpo-6532: Make the thread id an unsigned integer. From C API side the type of results of PyThread_start_new_thread() and PyThread_get_thread_ident(), the id parameter of PyThreadState_SetAsyncExc(), and the thread_id field of PyThreadState changed from "long" to "unsigned long". * Restore a check in thread_get_ident().
* remove ceval timestamp supportBenjamin Peterson2016-09-091-3/+0
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* Issue #28003: Implement PEP 525 -- Asynchronous Generators.Yury Selivanov2016-09-091-0/+5
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* Add the co_extra field and accompanying APIs to code objects.Brett Cannon2016-09-071-0/+1
| | | | This completes PEP 523.
* replace Py_(u)intptr_t with the c99 standard typesBenjamin Peterson2016-09-061-1/+1
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* Implement the frame evaluation API aspect of PEP 523.Brett Cannon2016-09-051-0/+1
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* Issue #27587: Merge from 3.5Berker Peksag2016-08-221-2/+4
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| * Issue #27587: Move null pointer check earlier in _PyState_AddModule()Berker Peksag2016-08-221-2/+4
| | | | | | | | | | | | | | | | | | This was found by PVS-Studio: V595 The 'def' pointer was utilized before it was verified against nullptr. Check lines: 286, 292. pystate.c 286 Initial patch by Christian Heimes.
| * Use Py_uintptr_t for atomic pointersVictor Stinner2016-01-221-23/+24
| | | | | | | | | | | | | | | | Issue #26161: Use Py_uintptr_t instead of void* for atomic pointers in pyatomic.h. Use atomic_uintptr_t when <stdatomic.h> is used. Using void* causes compilation warnings depending on which implementation of atomic types is used.
* | Issue #22557: Now importing already imported modules is up to 2.5 times faster.Serhiy Storchaka2016-08-021-0/+2
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* | Issue #26932: Fixed support of RTLD_* constants defined as enum values,Serhiy Storchaka2016-05-041-2/+2
| | | | | | | | not via macros (in particular on Android). Patch by Chi Hsuan Yen.
* | faulthandler now works in non-Python threadsVictor Stinner2016-03-161-0/+6
| | | | | | | | | | | | | | | | | | | | | | Issue #26563: * Add _PyGILState_GetInterpreterStateUnsafe() function: the single PyInterpreterState used by this process' GILState implementation. * Enhance _Py_DumpTracebackThreads() to retrieve the interpreter state from autoInterpreterState in last resort. The function now accepts NULL for interp and current_tstate parameters. * test_faulthandler: fix a ResourceWarning when test is interrupted by CTRL+c
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