[New-bugs-announce] [issue40522] Subinterpreters: get the current Python interpreter state from Thread Local Storage (autoTSSkey)

[STINNER Victor]

New submission from STINNER Victor <vstinner at python.org>:

_PyThreadState_GET() gets the current Python thread state from _PyRuntime.gilstate.tstate_current atomic variable.

When I experimented per-interpreter GIL (bpo-40512), I got issues with _PyThreadState_GET() which didn't return the expected Python thread state.

I propose to modify _PyThreadState_GET() in the exprimental isolated subinterpreters mode to get and set the current Python thread state using a Thread Local Storage: autoTSSkey.

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components: Interpreter Core
messages: 368182
nosy: vstinner
priority: normal
severity: normal
status: open
title: Subinterpreters: get the current Python interpreter state from Thread Local Storage (autoTSSkey)
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40522>
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