feat: add py::mod_gil_used()

Signed-off-by: Henry Schreiner <[email protected]>

Author: henryiii

include/pybind11/pybind11.h

@@ -1270,6 +1270,8 @@ class mod_gil_not_used {
     bool flag_;
 };
 
+inline mod_gil_not_used mod_gil_used() { return mod_gil_not_used(false); }
+
 class multiple_interpreters {
 public:
     enum class level {

tests/exo_planet_pybind11.cpp

@@ -10,7 +10,7 @@
 namespace pybind11_tests {
 namespace test_cpp_conduit {
 
-PYBIND11_MODULE(exo_planet_pybind11, m, ) {
+PYBIND11_MODULE(exo_planet_pybind11, m, pybind11::mod_gil_used()) {
     wrap_traveler(m);
     m.def("wrap_very_lonely_traveler", [m]() { wrap_very_lonely_traveler(m); });
 }

tests/extra_setuptools/test_setuphelper.py

@@ -65,7 +65,7 @@ def test_simple_setup_py(monkeypatch, tmpdir, parallel, std):
             int f(int x) {
                 return x * 3;
             }
-            PYBIND11_MODULE(simple_setup, m) {
+            PYBIND11_MODULE(simple_setup, m, pybind11::mod_gil_used()) {
                 m.def("f", &f);
             }
             """

tests/home_planet_very_lonely_traveler.cpp

@@ -5,7 +5,7 @@
 namespace pybind11_tests {
 namespace test_cpp_conduit {
 
-PYBIND11_MODULE(home_planet_very_lonely_traveler, m, ) {
+PYBIND11_MODULE(home_planet_very_lonely_traveler, m, py::mod_gil_used()) {
     m.def("wrap_very_lonely_traveler", [m]() { wrap_very_lonely_traveler(m); });
 }
 

tests/test_cross_module_rtti/bindings.cpp

@@ -8,7 +8,7 @@ class BaseTrampoline : public lib::Base, public pybind11::trampoline_self_life_s
     int get() const override { PYBIND11_OVERLOAD(int, lib::Base, get, ); }
 };
 
-PYBIND11_MODULE(test_cross_module_rtti_bindings, m, ) {
+PYBIND11_MODULE(test_cross_module_rtti_bindings, m, pybind11::mod_gil_used()) {
     pybind11::classh<lib::Base, BaseTrampoline>(m, "Base")
         .def(pybind11::init<int, int>())
         .def_readwrite("a", &lib::Base::a)