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* [3.13] gh-137490: Fix signal.sigwaitinfo() on NetBSD (GH-137523) (GH-138936)Miss Islington (bot)2025-09-151-1/+7
| | | | | | | Handle ECANCELED in the same way as EINTR to work around the Posix violation in the NetBSD's implementation. (cherry picked from commit 07d0b95b05dfaf5832f44c2fbc956761f9e29571) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* [3.13] fix comment reference from man 7 signal to man 7 signal-safety ↵Miss Islington (bot)2025-09-061-1/+1
| | | | | | | | | | | (GH-138554) (#138595) fix comment reference from man 7 signal to man 7 signal-safety (GH-138554) (cherry picked from commit 2f5ace780ba3880ce07c4aacbda08ebba36e3b4d) docs: fix comment reference from man 7 signal to man 7 signal-safety Co-authored-by: mqudah <mohghq@gmail.com>
* [3.13] gh-126662: naming consistency for `signal.ItimerError` (GH-126712) ↵Miss Islington (bot)2025-07-271-1/+1
| | | | | | | | (#137123) gh-126662: naming consistency for `signal.ItimerError` (GH-126712) (cherry picked from commit d5fa437dfb50e2e47632cdc994e3257608688f30) Co-authored-by: Stephen Morton <git@tungol.org>
* [3.13] gh-123014: Disable pidfd API on older Android versions (GH-124458) ↵Malcolm Smith2024-09-261-1/+3
| | | | | | | (#124543) gh-123014: Disable pidfd API on older Android versions (#124458) (cherry picked from commit c58c572a65eb5b93d054e779df289e975a0b9864)
* [3.13] gh-121905: Consistently use "floating-point" instead of "floating ↵Serhiy Storchaka2024-07-191-3/+3
| | | | | point" (GH-121907) (GH-122012) (cherry picked from commit 1a0c7b9ba48a2dffb70bb0c7327abae1d3e87356)
* gh-116322: Add Py_mod_gil module slot (#116882)Brett Simmers2024-05-031-0/+1
| | | | | | | | | | | | | | This PR adds the ability to enable the GIL if it was disabled at interpreter startup, and modifies the multi-phase module initialization path to enable the GIL when loading a module, unless that module's spec includes a slot indicating it can run safely without the GIL. PEP 703 called the constant for the slot `Py_mod_gil_not_used`; I went with `Py_MOD_GIL_NOT_USED` for consistency with gh-104148. A warning will be issued up to once per interpreter for the first GIL-using module that is loaded. If `-v` is given, a shorter message will be printed to stderr every time a GIL-using module is loaded (including the first one that issues a warning).
* gh-117764: Use Argument Clinic for signal.set_wakeup_fd() (GH-117777)Serhiy Storchaka2024-04-121-25/+24
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* gh-110850: Cleanup pycore_time.h includes (#115724)Victor Stinner2024-02-201-0/+1
| | | | | <pycore_time.h> include is no longer needed to get the PyTime_t type in internal header files. This type is now provided by <Python.h> include. Add <pycore_time.h> includes to C files instead.
* gh-110850: Replace _PyTime_t with PyTime_t (#115719)Victor Stinner2024-02-201-3/+3
| | | | | Run command: sed -i -e 's!\<_PyTime_t\>!PyTime_t!g' $(find -name "*.c" -o -name "*.h")
* gh-112175: Add `eval_breaker` to `PyThreadState` (#115194)Brett Simmers2024-02-201-7/+4
| | | | | | | | | | | This change adds an `eval_breaker` field to `PyThreadState`. The primary motivation is for performance in free-threaded builds: with thread-local eval breakers, we can stop a specific thread (e.g., for an async exception) without interrupting other threads. The source of truth for the global instrumentation version is stored in the `instrumentation_version` field in PyInterpreterState. Threads usually read the version from their local `eval_breaker`, where it continues to be colocated with the eval breaker bits.
* gh-108082: Use PyErr_FormatUnraisable() (GH-111580)Serhiy Storchaka2023-11-021-3/+2
| | | | | | Replace most of calls of _PyErr_WriteUnraisableMsg() and some calls of PyErr_WriteUnraisable(NULL) with PyErr_FormatUnraisable(). Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-108765: Include explicitly <unistd.h> in signalmodule.c (#111402)Victor Stinner2023-10-271-0/+3
| | | unistd.h is needed by alarm() and pause() functions.
* gh-110093: Replace trivial Py_BuildValue() with direct C API call (GH-110094)Serhiy Storchaka2023-10-201-1/+1
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* gh-109693: Use pyatomic.h for signal module (gh-110480)Donghee Na2023-10-091-17/+18
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* gh-76785: Add SendChannel.send_buffer() (#110246)Eric Snow2023-10-091-2/+2
| | | (This is still a test module.)
* GH-109369: Merge all eval-breaker flags and monitoring version into one ↵Mark Shannon2023-10-041-3/+2
| | | | word. (GH-109846)
* gh-108765: Python.h no longer includes <sys/time.h> (#108775)Victor Stinner2023-09-021-5/+5
| | | | | | | | | Python.h no longer includes <time.h>, <sys/select.h> and <sys/time.h> standard header files. * Add <time.h> include to xxsubtype.c. * Add <sys/time.h> include to posixmodule.c and semaphore.c. * readline.c includes <sys/select.h> instead of <sys/time.h>. * resource.c no longer includes <time.h> and <sys/time.h>.
* gh-106320: Remove private pylifecycle.h functions (#106400)Victor Stinner2023-07-041-1/+1
| | | | | | | Remove private pylifecycle.h functions: move them to the internal C API ( pycore_atexit.h, pycore_pylifecycle.h and pycore_signal.h). No longer export most of these functions. Move _testcapi.test_atexit() to _testinternalcapi.
* gh-104812: Run Pending Calls in any Thread (gh-104813)Eric Snow2023-06-131-2/+4
| | | For a while now, pending calls only run in the main thread (in the main interpreter). This PR changes things to allow any thread run a pending call, unless the pending call was explicitly added for the main thread to run.
* gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205)Eric Snow2023-05-051-0/+1
| | | Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules. We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
* gh-102650: Remove duplicate include directives from multiple source files ↵chgnrdv2023-03-131-3/+1
| | | | | (#102651) Remove duplicate include directives from multiple source files
* GH-102397: Fix segfault from race condition in signal handling (#102399)Kumar Aditya2023-03-081-0/+4
| | | Co-authored-by: Gregory P. Smith <greg@krypto.org>
* gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives ↵Irit Katriel2023-02-241-6/+4
| | | | (in Modules/) (#102196)
* GH-100126: Skip incomplete frames in more places (GH-100613)Brandt Bucher2023-01-091-4/+1
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* gh-81057: Move Signal-Related Globals to _PyRuntimeState (gh-100085)Eric Snow2022-12-121-56/+15
| | | https://github.com/python/cpython/issues/81057
* gh-98930: improve the docstring of signal.strsignal (#99290)ram vikram singh2022-11-131-3/+4
| | | | | | | Improves the docstring on signal.strsignal to make it explain when it returns a message, None, or when it raises ValueError. Closes #98930 Co-authored-by: Gregory P. Smith <greg@krypto.org>
* signalmodule.c uses _PyErr_WriteUnraisableMsg() (#98217)Victor Stinner2022-10-121-7/+6
| | | | | | | Signal wakeup fd errors are now logged with _PyErr_WriteUnraisableMsg(), rather than PySys_WriteStderr() and PyErr_WriteUnraisable(), to pass the error message to sys.unraisablehook. By default, it's still written into stderr (unless sys.unraisablehook is overriden).
* gh-97922: Run the GC only on eval breaker (#97920)Pablo Galindo Salgado2022-10-081-0/+13
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* GH-96754: Check whether the interpreter frame is complete before creating ↵Mark Shannon2022-09-131-0/+3
| | | | frame object. (GH-96776)
* gh-84461: Silence some compiler warnings on WASM (GH-93978)Christian Heimes2022-06-201-2/+5
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* gh-91320: Use _PyCFunction_CAST() (#92251)Victor Stinner2022-05-031-1/+1
| | | | | | | | | | Replace "(PyCFunction)(void(*)(void))func" cast with _PyCFunction_CAST(func). Change generated by the command: sed -i -e \ 's!(PyCFunction)(void(\*)(void)) *\([A-Za-z0-9_]\+\)!_PyCFunction_CAST(\1)!g' \ $(find -name "*.c")
* gh-64783: Fix signal.NSIG value on FreeBSD (#91929)Victor Stinner2022-04-251-16/+18
| | | | | | | | | Fix signal.NSIG value on FreeBSD to accept signal numbers greater than 32, like signal.SIGRTMIN and signal.SIGRTMAX. * Add Py_NSIG constant. * Add pycore_signal.h internal header file. * _Py_Sigset_Converter() now includes the range of valid signals in the error message.
* gh-90623: signal.raise_signal() calls PyErr_CheckSignals() (#91756)Victor Stinner2022-04-211-0/+7
| | | | signal.raise_signal() and os.kill() now call PyErr_CheckSignals() to check immediately for pending signals.
* bpo-47176: Interrupt handling for wasm32-emscripten builds without pthreads ↵Hood Chatham2022-04-031-0/+2
| | | | | | (GH-32209) Co-authored-by: Christian Heimes <christian@python.org> Co-authored-by: Brett Cannon <brett@python.org>
* bpo-23325: Fix SIG_IGN and SIG_DFL int comparison in signal module (GH-31759)Christian Heimes2022-03-081-13/+23
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* bpo-46836: Rename InterpreterFrame to _PyInterpreterFrame (GH-31583)Victor Stinner2022-02-251-2/+2
| | | | | Rename also struct _interpreter_frame to struct _PyInterpreterFrame. Reduce risk of name conflicts if a project includes pycore_frame.h.
* bpo-46417: signal: move siginfo_type to the module state (GH-30964)Victor Stinner2022-01-271-19/+20
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* bpo-46417: signal uses PyStructSequence_NewType() (GH-30735)Victor Stinner2022-01-211-7/+9
| | | | | | The signal module now creates its struct_siginfo type as a heap type using PyStructSequence_NewType(), rather than using a static type. Add 'siginfo_type' member to the global signal_state_t structure.
* bpo-45953: Statically allocate the main interpreter (and initial thread ↵Eric Snow2022-01-121-1/+1
| | | | | | | | | state). (gh-29883) Previously, the main interpreter was allocated on the heap during runtime initialization. Here we instead embed it into _PyRuntimeState, which means it is statically allocated as part of the _PyRuntime global. The same goes for the initial thread state (of each interpreter, including the main one). Consequently there are fewer allocations during runtime/interpreter init, fewer possible failures, and better memory locality. FYI, this also helps efforts to consolidate globals, which in turns helps work on subinterpreter isolation. https://bugs.python.org/issue45953
* bpo-45643: Add signal.SIGSTKFLT on platforms where this is defined (GH-29266)Gareth Rees2021-12-131-0/+3
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* bpo-45855: Replaced deprecated `PyImport_ImportModuleNoBlock` with ↵Kumar Aditya2021-12-121-1/+1
| | | | PyImport_ImportModule (GH-30046)
* bpo-41498: Fix build on platforms without sigset_t (GH-29770)Christian Heimes2021-11-251-3/+10
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* bpo-45637: Store the frame pointer in the cframe (GH-29267)Mark Shannon2021-10-281-1/+1
| | | * Rename 'frame' to 'current_frame'
* bpo-45434: Move _Py_BEGIN_SUPPRESS_IPH to pycore_fileutils.h (GH-28922)Victor Stinner2021-10-131-0/+1
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* bpo-45439: Move _PyObject_CallNoArgs() to pycore_call.h (GH-28895)Victor Stinner2021-10-121-1/+1
| | | | | | | * Move _PyObject_CallNoArgs() to pycore_call.h (internal C API). * _ssl, _sqlite and _testcapi extensions now call the public PyObject_CallNoArgs() function, rather than _PyObject_CallNoArgs(). * _lsprof extension is now built with Py_BUILD_CORE_MODULE macro defined to get access to internal _PyObject_CallNoArgs().
* Fix typos in the Modules directory (GH-28761)Christian Clauss2021-10-071-1/+1
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* bpo-41710: Add private _PyDeadline_Get() function (GH-28674)Victor Stinner2021-10-011-10/+10
| | | | | | | | Add a private C API for deadlines: add _PyDeadline_Init() and _PyDeadline_Get() functions. * Add _PyTime_Add() and _PyTime_Mul() functions which compute t1+t2 and t1*t2 and clamp the result on overflow. * _PyTime_MulDiv() now uses _PyTime_Add() and _PyTime_Mul().
* bpo-45163: Haiku build fix. (GH-28269)David CARLIER2021-09-111-1/+1
| | | | | | linkage issues mainly for shared libs and missing system library, also little nit into the signal extension as strsignal returns a constant in this platform.
* bpo-44590: Lazily allocate frame objects (GH-27077)Mark Shannon2021-07-261-7/+12
| | | | | | | | | | | | | | * 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-43963: Add _signal module state (GH-25676)Victor Stinner2021-04-281-84/+153
| | | | | | | | | | | | | * Add signal_state_t structure and signal_global_state variable. * Add a module state to the _signal module. * Move and rename variables: * DefaultHandler becomes state->default_handler * IgnoreHandler becomes state->ignore_handler * sigint_event becomes state->sigint_event * ItimerError becomes modstate->itimer_error * Rename SetHandler() to set_handler() to be consistent with get_handler().
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