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https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git
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Previously, the external module relied on gpiod attributes being present within `globals()` to construct return values back to the caller. This assumption required callers of the external module to have imported the attributes to populate `globals()` for the interface to work. Having this implicit contract is opaque and prone to causing issues if imports within gpiod modules ever get reworked. Now, the external module explicitly imports attributes from gpiod in order to return values back to the caller. There should be no concern about circular imports as the external module should be completely imported by the time callers call into it. Since Py_gpiod_GetGlobalType is no longer used, it has been replaced with Py_gpiod_GetModuleAttrString which returns a new PyObject* reference for the named module and attribute that must be decremented when no longer in use. Closes: https://github.com/brgl/libgpiod/issues/101 Signed-off-by: Vincent Fazio <vfazio@xes-inc.com> Link: https://lore.kernel.org/r/20241008175139.1198980-1-vfazio@xes-inc.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
21 lines
766 B
C
21 lines
766 B
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/* SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl> */
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#ifndef __LIBGPIOD_PYTHON_MODULE_H__
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#define __LIBGPIOD_PYTHON_MODULE_H__
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#include <gpiod.h>
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#include <Python.h>
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PyObject *Py_gpiod_SetErrFromErrno(void);
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PyObject *Py_gpiod_GetModuleAttrString(const char *modname,
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const char *attrname);
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unsigned int Py_gpiod_PyLongAsUnsignedInt(PyObject *pylong);
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void Py_gpiod_dealloc(PyObject *self);
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PyObject *Py_gpiod_MakeRequestObject(struct gpiod_line_request *request,
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size_t event_buffer_size);
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struct gpiod_line_config *Py_gpiod_LineConfigGetData(PyObject *obj);
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struct gpiod_line_settings *Py_gpiod_LineSettingsGetData(PyObject *obj);
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#endif /* __LIBGPIOD_PYTHON_MODULE_H__ */
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