78     runtime->interpreters.mutex = PyThread_allocate_lock();  in _PyRuntimeState_Init_impl()
79     if (runtime->interpreters.mutex == NULL) {  in _PyRuntimeState_Init_impl()
82     runtime->interpreters.next_id = -1;  in _PyRuntimeState_Init_impl()
127     FREE_LOCK(runtime->interpreters.mutex);  in _PyRuntimeState_Fini()
149     int reinit_interp = _PyThread_at_fork_reinit(&runtime->interpreters.mutex);  in _PyRuntimeState_ReInitThreads()
157     int reinit_main_id = _PyThread_at_fork_reinit(&runtime->interpreters.main->id_mutex);  in _PyRuntimeState_ReInitThreads()
172     PyThread_acquire_lock((runtime)->interpreters.mutex, WAIT_LOCK)
174     PyThread_release_lock((runtime)->interpreters.mutex)
183     struct pyinterpreters *interpreters = &runtime->interpreters;  in _PyInterpreterState_Enable()  local
184     interpreters->next_id = 0;  in _PyInterpreterState_Enable()
188     if (interpreters->mutex == NULL) {  in _PyInterpreterState_Enable()
194         interpreters->mutex = PyThread_allocate_lock();  in _PyInterpreterState_Enable()
198         if (interpreters->mutex == NULL) {  in _PyInterpreterState_Enable()
244     struct pyinterpreters *interpreters = &runtime->interpreters;  in PyInterpreterState_New()  local
247     if (interpreters->next_id < 0) {  in PyInterpreterState_New()
257         interp->id = interpreters->next_id;  in PyInterpreterState_New()
258         interpreters->next_id += 1;  in PyInterpreterState_New()
259         interp->next = interpreters->head;  in PyInterpreterState_New()
260         if (interpreters->main == NULL) {  in PyInterpreterState_New()
261             interpreters->main = interp;  in PyInterpreterState_New()
263         interpreters->head = interp;  in PyInterpreterState_New()
381     struct pyinterpreters *interpreters = &runtime->interpreters;  in PyInterpreterState_Delete()  local
391     for (p = &interpreters->head; ; p = &(*p)->next) {  in PyInterpreterState_Delete()
404     if (interpreters->main == interp) {  in PyInterpreterState_Delete()
405         interpreters->main = NULL;  in PyInterpreterState_Delete()
406         if (interpreters->head != NULL) {  in PyInterpreterState_Delete()
428     struct pyinterpreters *interpreters = &runtime->interpreters;  in _PyInterpreterState_DeleteExceptMain()  local
431     if (tstate != NULL && tstate->interp != interpreters->main) {  in _PyInterpreterState_DeleteExceptMain()
436     PyInterpreterState *interp = interpreters->head;  in _PyInterpreterState_DeleteExceptMain()
437     interpreters->head = NULL;  in _PyInterpreterState_DeleteExceptMain()
439         if (interp == interpreters->main) {  in _PyInterpreterState_DeleteExceptMain()
440             interpreters->main->next = NULL;  in _PyInterpreterState_DeleteExceptMain()
441             interpreters->head = interp;  in _PyInterpreterState_DeleteExceptMain()
457     if (interpreters->head == NULL) {  in _PyInterpreterState_DeleteExceptMain()
493     PyInterpreterState *interp = runtime->interpreters.head;  in interp_look_up_id()
1168     return _PyRuntime.interpreters.head;  in PyInterpreterState_Head()
1174     return _PyRuntime.interpreters.main;  in PyInterpreterState_Main()
1219     for (i = runtime->interpreters.head; i != NULL; i = i->next) {  in _PyThread_CurrentFrames()
1272     for (i = runtime->interpreters.head; i != NULL; i = i->next) {  in _PyThread_CurrentExceptions()