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python-v2.5.x
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6 Commits

Author SHA1 Message Date
Vincent Fazio
c9378d6c63 bindings: python: support free-threaded CPython 
PEP 703 [0] discusses making the GIL optional in certain builds of the
CPython interpreter.

This build option was available experiementally in Python 3.13 but has
since been stabilized in Python 3.14 per PEP 779 [1].

According to the porting guide [2], there is no strict requirement that
C extensions must be thread-safe.

Experiments have shown that no logic changes are required if callers
use sychronization mechanisms provided by the Python standard library.

The documentation has been updated to call this out specifically using
terminology from the porting guide [3].

[0]: https://peps.python.org/pep-0703/
[1]: https://peps.python.org/pep-0779/
[2]: https://py-free-threading.github.io/porting/#define-and-document-thread-safety-guarantees
[3]: https://py-free-threading.github.io/documentation-principles/#free-threading-terminology

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Link: https://patch.msgid.link/20260527215922.18678-3-vfazio@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
 2026-05-28 10:59:30 +02:00
Vincent Fazio
7acbbcf778 bindings: python: tests: migrate the gpiosim module to multi-phase init 
Single-phase initialization has been classified as legacy within CPython
documentation [0] with multi-phase being its successor [1].

As such, switch to the new methodology.

Switching requires converting `gpiosim.Chip` to be a heap-type [2] in
order to access the module's state [3].

[0]: https://docs.python.org/3/c-api/extension-modules.html#legacy-single-phase-initialization
[1]: https://docs.python.org/3/c-api/extension-modules.html#multi-phase-initialization
[2]: https://docs.python.org/3/c-api/typeobj.html#heap-types
[3]: https://docs.python.org/3/howto/isolating-extensions.html#heap-types

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Link: https://patch.msgid.link/20260423222125.29097-9-vfazio@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
 2026-04-24 11:08:11 +02:00
Vincent Fazio
63d4fd7ad7 bindings: python: use suggestions from upgrade_pythoncapi.py 
The upgrade_pythoncapi.py script performs transforms on C extension
sources to use new syntax [0]. It's generally used with a shim header
for compatibility, but the header is not necessary for these changes.

The suggested changes are:

  * Use the `Py_IsNone` function introduced in CPython 3.10 [1] over
    direct comparison to `Py_None`

  * Use `PyObject_Free` instead of `PyObject_Del` since `PyObject_Del`
    has been aliased to `PyObject_Free` for nearly 24 years [2] and has
    been announced as deprecated [3]

  * Use the `Py_NewRef` function introduced in CPython 3.10 [4] to
    increment and return a new reference.

[0]: https://pythoncapi-compat.readthedocs.io/en/latest/index.html
[1]: 09bbebea16
[2]: 3e7b893899
[3]: https://docs.python.org/3/c-api/allocation.html#deprecated-aliases
[4]: 53a03aafd5

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Link: https://patch.msgid.link/20260423222125.29097-5-vfazio@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
 2026-04-24 10:47:55 +02:00
Bartosz Golaszewski
9949cdaf84 bindings: python: tests: disable device before releasing the bank 
Linux kernel commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an
instantiated device depends on") uncovered an issue in Python bindings
tests where the GPIO simulator device is not disabled before removing its
configfs entries. Reorder the operations in chip_finalize() in order to
disable the device first (if needed) before releasing any other
resources.

Link: https://lore.kernel.org/r/20250203-fix-gpiosim-in-bindings-v1-2-d2c9e0f3a29d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
 2025-02-05 10:49:35 +01:00
Bartosz Golaszewski
0acc1fb29e gpiosim: rename HOG_DIR to DIRECTION 
The enum itself should just define direction settings, it's the functions
that use it that should refer to hogging.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
 2022-12-07 09:53:28 +01:00
Bartosz Golaszewski
b7ba732e6a treewide: libgpiod v2 implementation 
This commit is the result of a squash of all the commits created during
the development of libgpiod v2. This is done to preserve bisectability
of the git tree. It contains significant re-writes of the core C library
as well as C++ and python bindings. The tools have been adjusted to work
with the new API but have not undergone significant changes yet.

This commit contains the bulk of the work on libgpiod v2 but the
development continues with more changes planned.

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
[Ben: fix format specifier for uint64_t]
Signed-off-by: Ben Hutchings <ben.hutchings@mind.be>
[Viresh: Fix ioctl number for gpiod_line_request_reconfigure_lines()]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[Kent: bug fixes, improvements, better pointer contracts, type strictness]
Signed-off-by: Kent Gibson <warthog618@gmail.com>
 2022-10-31 11:15:14 +01:00