11 #define INTERVAL (_PyRuntime.ceval.gil.interval >= 1 ? _PyRuntime.ceval.gil.interval : 1)
105     return (_Py_atomic_load_explicit(&_PyRuntime.ceval.gil.locked,  in gil_created()
112     MUTEX_INIT(_PyRuntime.ceval.gil.mutex);  in create_gil()
114     MUTEX_INIT(_PyRuntime.ceval.gil.switch_mutex);  in create_gil()
116     COND_INIT(_PyRuntime.ceval.gil.cond);  in create_gil()
118     COND_INIT(_PyRuntime.ceval.gil.switch_cond);  in create_gil()
120     _Py_atomic_store_relaxed(&_PyRuntime.ceval.gil.last_holder, 0);  in create_gil()
121     _Py_ANNOTATE_RWLOCK_CREATE(&_PyRuntime.ceval.gil.locked);  in create_gil()
122     _Py_atomic_store_explicit(&_PyRuntime.ceval.gil.locked, 0,  in create_gil()
131     COND_FINI(_PyRuntime.ceval.gil.cond);  in destroy_gil()
132     MUTEX_FINI(_PyRuntime.ceval.gil.mutex);  in destroy_gil()
134     COND_FINI(_PyRuntime.ceval.gil.switch_cond);  in destroy_gil()
135     MUTEX_FINI(_PyRuntime.ceval.gil.switch_mutex);  in destroy_gil()
137     _Py_atomic_store_explicit(&_PyRuntime.ceval.gil.locked, -1,  in destroy_gil()
139     _Py_ANNOTATE_RWLOCK_DESTROY(&_PyRuntime.ceval.gil.locked);  in destroy_gil()
144     _Py_ANNOTATE_RWLOCK_DESTROY(&_PyRuntime.ceval.gil.locked);  in recreate_gil()
151     if (!_Py_atomic_load_relaxed(&_PyRuntime.ceval.gil.locked))  in drop_gil()
158         _Py_atomic_store_relaxed(&_PyRuntime.ceval.gil.last_holder,  in drop_gil()
162     MUTEX_LOCK(_PyRuntime.ceval.gil.mutex);  in drop_gil()
163     _Py_ANNOTATE_RWLOCK_RELEASED(&_PyRuntime.ceval.gil.locked, /*is_write=*/1);  in drop_gil()
164     _Py_atomic_store_relaxed(&_PyRuntime.ceval.gil.locked, 0);  in drop_gil()
165     COND_SIGNAL(_PyRuntime.ceval.gil.cond);  in drop_gil()
166     MUTEX_UNLOCK(_PyRuntime.ceval.gil.mutex);  in drop_gil()
169     if (_Py_atomic_load_relaxed(&_PyRuntime.ceval.gil_drop_request) &&  in drop_gil()
172         MUTEX_LOCK(_PyRuntime.ceval.gil.switch_mutex);  in drop_gil()
175                     &_PyRuntime.ceval.gil.last_holder)  in drop_gil()
183             COND_WAIT(_PyRuntime.ceval.gil.switch_cond,  in drop_gil()
184                       _PyRuntime.ceval.gil.switch_mutex);  in drop_gil()
186         MUTEX_UNLOCK(_PyRuntime.ceval.gil.switch_mutex);  in drop_gil()
198     MUTEX_LOCK(_PyRuntime.ceval.gil.mutex);  in take_gil()
200     if (!_Py_atomic_load_relaxed(&_PyRuntime.ceval.gil.locked))  in take_gil()
203     while (_Py_atomic_load_relaxed(&_PyRuntime.ceval.gil.locked)) {  in take_gil()
207         saved_switchnum = _PyRuntime.ceval.gil.switch_number;  in take_gil()
208         COND_TIMED_WAIT(_PyRuntime.ceval.gil.cond, _PyRuntime.ceval.gil.mutex,  in take_gil()
213             _Py_atomic_load_relaxed(&_PyRuntime.ceval.gil.locked) &&  in take_gil()
214             _PyRuntime.ceval.gil.switch_number == saved_switchnum) {  in take_gil()
222     MUTEX_LOCK(_PyRuntime.ceval.gil.switch_mutex);  in take_gil()
225     _Py_atomic_store_relaxed(&_PyRuntime.ceval.gil.locked, 1);  in take_gil()
226     _Py_ANNOTATE_RWLOCK_ACQUIRED(&_PyRuntime.ceval.gil.locked, /*is_write=*/1);  in take_gil()
229                     &_PyRuntime.ceval.gil.last_holder))  in take_gil()
231         _Py_atomic_store_relaxed(&_PyRuntime.ceval.gil.last_holder,  in take_gil()
233         ++_PyRuntime.ceval.gil.switch_number;  in take_gil()
237     COND_SIGNAL(_PyRuntime.ceval.gil.switch_cond);  in take_gil()
238     MUTEX_UNLOCK(_PyRuntime.ceval.gil.switch_mutex);  in take_gil()
240     if (_Py_atomic_load_relaxed(&_PyRuntime.ceval.gil_drop_request)) {  in take_gil()
247     MUTEX_UNLOCK(_PyRuntime.ceval.gil.mutex);  in take_gil()
253     _PyRuntime.ceval.gil.interval = microseconds;  in _PyEval_SetSwitchInterval()
258     return _PyRuntime.ceval.gil.interval;  in _PyEval_GetSwitchInterval()