pybind11/tests/cross_module_gil_utils.cpp
Ralf W. Grosse-Kunstleve 6493f496e3
Python 2 removal part 1: tests (C++ code is intentionally ~untouched) (#3688)
* `#error BYE_BYE_GOLDEN_SNAKE`

* Removing everything related to 2.7 from ci.yml

* Commenting-out Centos7

* Removing `PYTHON: 27` from .appveyor.yml

* "PY2" removal, mainly from tests. C++ code is not touched.

* Systematic removal of `u` prefix from `u"..."` and `u'...'` literals. Collateral cleanup of a couple minor other things.

* Cleaning up around case-insensitive hits for `[^a-z]py.*2` in tests/.

* Removing obsolete Python 2 mention in compiling.rst

* Proper `#error` for Python 2.

* Using PY_VERSION_HEX to guard `#error "PYTHON 2 IS NO LONGER SUPPORTED.`

* chore: bump pre-commit

* style: run pre-commit for pyupgrade 3+

* tests: use sys.version_info, not PY

* chore: more Python 2 removal

* Uncommenting Centos7 block (PR #3691 showed that it is working again).

* Update pre-commit hooks

* Fix pre-commit hook

* refactor: remove Python 2 from CMake

* refactor: remove Python 2 from setup code

* refactor: simplify, better static typing

* feat: fail with nice messages

* refactor: drop Python 2 C++ code

* docs: cleanup for Python 3

* revert: intree

revert: intree

* docs: minor touchup to py2 statement

Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: Aaron Gokaslan <skylion.aaron@gmail.com>
2022-02-10 18:28:08 -08:00

46 lines
1.4 KiB
C++

/*
tests/cross_module_gil_utils.cpp -- tools for acquiring GIL from a different module
Copyright (c) 2019 Google LLC
All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE file.
*/
#include <pybind11/pybind11.h>
#include <cstdint>
// This file mimics a DSO that makes pybind11 calls but does not define a
// PYBIND11_MODULE. The purpose is to test that such a DSO can create a
// py::gil_scoped_acquire when the running thread is in a GIL-released state.
//
// Note that we define a Python module here for convenience, but in general
// this need not be the case. The typical scenario would be a DSO that implements
// shared logic used internally by multiple pybind11 modules.
namespace {
namespace py = pybind11;
void gil_acquire() { py::gil_scoped_acquire gil; }
constexpr char kModuleName[] = "cross_module_gil_utils";
struct PyModuleDef moduledef
= {PyModuleDef_HEAD_INIT, kModuleName, NULL, 0, NULL, NULL, NULL, NULL, NULL};
} // namespace
extern "C" PYBIND11_EXPORT PyObject *PyInit_cross_module_gil_utils() {
PyObject *m = PyModule_Create(&moduledef);
if (m != NULL) {
static_assert(sizeof(&gil_acquire) == sizeof(void *),
"Function pointer must have the same size as void*");
PyModule_AddObject(
m, "gil_acquire_funcaddr", PyLong_FromVoidPtr(reinterpret_cast<void *>(&gil_acquire)));
}
return m;
}