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gh-100227: Make the Global Interned Dict Safe for Isolated Interpreters #102925

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Merged
ericsnowcurrently merged 17 commits into from
Mar 23, 2023
Merged

gh-100227: Make the Global Interned Dict Safe for Isolated Interpreters #102925

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546b934
Factor out add_threadstate().
ericsnowcurrently Mar 21, 2023
0bcd136
Add _PyThreadState_InitDetached().
ericsnowcurrently Mar 21, 2023
35d5310
Add _PyThreadState_ClearDetached().
ericsnowcurrently Mar 21, 2023
cba9e34
Add _PyRuntime.cached_objects.main_tstate.
ericsnowcurrently Mar 21, 2023
3b1bb8b
Add _Py_AcquireGlobalObjectsState() and _Py_ReleaseGlobalObjectsState().
ericsnowcurrently Mar 22, 2023
eb42aa1
Add _Py_AddToGlobalDict().
ericsnowcurrently Mar 22, 2023
4e9da2d
Drop _Py_AcquireGlobalObjectsState() and _Py_ReleaseGlobalObjectsStat…
ericsnowcurrently Mar 22, 2023
6216207
Add acquire_global_objects_lock() and release_global_objects_lock().
ericsnowcurrently Mar 22, 2023
3c007c0
Add some TODO comments.
ericsnowcurrently Mar 13, 2023
7d95514
Factor out store_interned().
ericsnowcurrently Mar 20, 2023
5c20b84
Store a thread state to use just for interned strings.
ericsnowcurrently Mar 20, 2023
a3ae02a
Always use the main interpreter when possibly resizing the interned d…
ericsnowcurrently Mar 20, 2023
d5fbc37
Use _PyRuntime.cached_objects.main_tstate instead.
ericsnowcurrently Mar 21, 2023
459325f
Add _PyThreadState_IsBound() and _PyThreadState_Unbind().
ericsnowcurrently Mar 21, 2023
4f25244
Make sure the one-off tstate is bound before using it.
ericsnowcurrently Mar 21, 2023
e68535a
Use _Py_AcquireGlobalObjectsState() in store_interned().
ericsnowcurrently Mar 22, 2023
22753b3
Use _Py_AddToGlobalDict().
ericsnowcurrently Mar 22, 2023
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Add _PyThreadState_InitDetached().
  • Loading branch information
@ericsnowcurrently
ericsnowcurrently committed Mar 22, 2023
commit 0bcd136ce103558500e70360e75b7d861debfdf2
1 change: 1 addition & 0 deletions Include/internal/pycore_pystate.h
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Expand Up @@ -126,6 +126,7 @@ PyAPI_FUNC(void) _PyThreadState_Bind(PyThreadState *tstate);
PyAPI_FUNC(void) _PyThreadState_Init(
PyThreadState *tstate);
PyAPI_FUNC(void) _PyThreadState_DeleteExcept(PyThreadState *tstate);
extern void _PyThreadState_InitDetached(PyThreadState *, PyInterpreterState *);


static inline void
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14 changes: 14 additions & 0 deletions Python/pystate.c
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Expand Up @@ -1357,6 +1357,20 @@ _PyThreadState_Init(PyThreadState *tstate)
Py_FatalError("_PyThreadState_Init() is for internal use only");
}

void
_PyThreadState_InitDetached(PyThreadState *tstate, PyInterpreterState *interp)
{
_PyRuntimeState *runtime = interp->runtime;

HEAD_LOCK(runtime);
interp->threads.next_unique_id += 1;
uint64_t id = interp->threads.next_unique_id;
HEAD_UNLOCK(runtime);

init_threadstate(tstate, interp, id);
// We do not call add_threadstate().
}

void
PyThreadState_Clear(PyThreadState *tstate)
{
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