Commit Graph

20 Commits

Author SHA1 Message Date
Victor Stinner 12af8ec864
gh-121040: Use __attribute__((fallthrough)) (#121044)
Fix warnings when using -Wimplicit-fallthrough compiler flag.

Annotate explicitly "fall through" switch cases with a new
_Py_FALLTHROUGH macro which uses __attribute__((fallthrough)) if
available. Replace "fall through" comments with _Py_FALLTHROUGH.

Add _Py__has_attribute() macro. No longer define __has_attribute()
macro if it's not defined. Move also _Py__has_builtin() at the top
of pyport.h.

Co-Authored-By: Nikita Sobolev <mail@sobolevn.me>
2024-06-27 09:58:44 +00:00
Eric Snow a905721b9c
gh-120838: Add _PyThreadState_WHENCE_FINI (gh-121010)
We also add _PyThreadState_NewBound() and drop _PyThreadState_SetWhence().

This change only affects internal API.
2024-06-25 14:35:12 -06:00
Eric Snow fd259fdabe
gh-76785: Handle Legacy Interpreters Properly (gh-117490)
This is similar to the situation with threading._DummyThread.  The methods (incl. __del__()) of interpreters.Interpreter objects must be careful with interpreters not created by interpreters.create().  The simplest thing to start with is to disable any method that modifies or runs in the interpreter.  As part of this, the runtime keeps track of where an interpreter was created.  We also handle interpreter "refcounts" properly.
2024-04-11 23:23:25 +00:00
Eric Snow 993c3cca16
gh-76785: Add More Tests to test_interpreters.test_api (gh-117662)
In addition to the increase test coverage, this is a precursor to sorting out how we handle interpreters created directly via the C-API.
2024-04-10 18:37:01 -06:00
Eric Snow 976bcb2379
gh-76785: Raise InterpreterError, Not RuntimeError (gh-117489)
I had meant to switch everything to InterpreterError when I added it a while back.  At the time I missed a few key spots.

As part of this, I've added print-the-exception to _PyXI_InitTypes() and fixed an error case in `_PyStaticType_InitBuiltin().
2024-04-03 10:58:39 -06:00
Victor Stinner c432df6d56
gh-111696, PEP 737: Add PyType_GetModuleName() function (#116824)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
2024-03-14 18:17:43 +00:00
Eric Snow 514b1c91b8
gh-76785: Improved Subinterpreters Compatibility with 3.12 (gh-115424)
For the most part, these changes make is substantially easier to backport subinterpreter-related code to 3.12, especially the related modules (e.g. _xxsubinterpreters). The main motivation is to support releasing a PyPI package with the 3.13 capabilities compiled for 3.12.

A lot of the changes here involve either hiding details behind macros/functions or splitting up some files.
2024-02-13 14:56:49 -07:00
Eric Snow c6e614fd81
gh-76785: Avoid Pickled TracebackException for Propagated Subinterpreter Exceptions (gh-113036)
We need the TracebackException of uncaught exceptions for a single purpose: the error display.  Thus we only need to pass the formatted error display between interpreters.  Passing a pickled TracebackException is overkill.
2023-12-13 00:31:30 +00:00
Eric Snow 8a4c1f3ff1
gh-76785: Show the Traceback for Uncaught Subinterpreter Exceptions (gh-113034)
When an exception is uncaught in Interpreter.exec_sync(), it helps to show that exception's error display if uncaught in the calling interpreter.  We do so here by generating a TracebackException in the subinterpreter and passing it between interpreters using pickle.
2023-12-13 00:00:54 +00:00
Eric Snow 86a77f4e1a
gh-76785: Fixes for test.support.interpreters (gh-112982)
This involves a number of changes for PEP 734.
2023-12-12 08:24:31 -07:00
Sam Gross cf6110ba13
gh-111924: Use PyMutex for Runtime-global Locks. (gh-112207)
This replaces some usages of PyThread_type_lock with PyMutex, which does not require memory allocation to initialize.

This simplifies some of the runtime initialization and is also one step towards avoiding changing the default raw memory allocator during initialize/finalization, which can be non-thread-safe in some circumstances.
2023-12-07 12:33:40 -07:00
Eric Snow 9e56eedd01
gh-76785: Return an "excinfo" Object From Interpreter.run() (gh-111573) 2023-11-23 00:55:00 +00:00
Anthony Shaw 178861b193
gh-111623: Add Support for Cross-interpreter tuples (gh-111628) 2023-11-07 10:58:29 -07:00
Eric Snow d4426e8d00
gh-76785: Move _Py_excinfo Functions Out of the Internal C-API (gh-111715)
I added _Py_excinfo to the internal API (and added its functions in Python/errors.c) in gh-111530 (9322ce9).  Since then I've had a nagging sense that I should have added the type and functions in its own PR.  While I do plan on using _Py_excinfo outside crossinterp.c very soon (see gh-111572/gh-111573), I'd still feel more comfortable if the _Py_excinfo stuff went in as its own PR.  Hence, here we are.

(FWIW, I may combine that with gh-111572, which I may, in turn, combine with gh-111573.  We'll see.)
2023-11-06 11:09:22 -07:00
Eric Snow df9815eb11
gh-111684: Avoid a Compiler Warning (gh-111706) 2023-11-03 13:37:10 -06:00
Eric Snow 93206d19a3
gh-76785: Minor Fixes in crossinterp.c (gh-111671)
There were a few corner cases I didn't handle properly in gh-111530, which I've noticed while working on a follow-up PR.  This fixes those cases.
2023-11-03 00:45:42 +00:00
Anthony Shaw 230e8e924d
GH-111435: Add Support for Sharing True and False Between Interpreters (gh-111436)
This only affects users of the APIs in pycore_crossinterp.h (AKA _xxsubinterpretersmodule.c and _xxinterpchannels.c).
2023-11-02 00:09:01 +00:00
Eric Snow 9322ce90ac
gh-76785: Crossinterp utils additions (gh-111530)
This moves several general internal APIs out of _xxsubinterpretersmodule.c and into the new Python/crossinterp.c (and the corresponding internal headers).

Specifically:

* _Py_excinfo, etc.:  the initial implementation for non-object exception snapshots (in pycore_pyerrors.h and Python/errors.c)
* _PyXI_exception_info, etc.:  helpers for passing an exception beween interpreters (wraps _Py_excinfo)
* _PyXI_namespace, etc.:  helpers for copying a dict of attrs between interpreters
* _PyXI_Enter(), _PyXI_Exit():  functions that abstract out the transitions between one interpreter and a second that will do some work temporarily

Again, these were all abstracted out of _xxsubinterpretersmodule.c as generalizations.  I plan on proposing these as public API at some point.
2023-11-01 17:36:40 -06:00
Anthony Shaw ad6380bc34
GH-111438: Add Support for Sharing Floats Between Interpreters (gh-111439)
This only affects users of the APIs in pycore_crossinterp.h (AKA _xxsubinterpretersmodule.c and _xxinterpchannels.c).
2023-10-31 08:17:20 -06:00
Eric Snow c6fe0869ab
gh-76785: Move the Cross-Interpreter Code to Its Own File (gh-111502)
This is partly to clear this stuff out of pystate.c, but also in preparation for moving some code out of _xxsubinterpretersmodule.c.  This change also moves this stuff to the internal API (new: Include/internal/pycore_crossinterp.h).  @vstinner did this previously and I undid it.  Now I'm re-doing it. :/
2023-10-30 16:53:10 -06:00