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Title: bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). by ericsnowcurrently · Pull Request #11617 · python/cpython · GitHub

Open Graph Title: bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). by ericsnowcurrently · Pull Request #11617 · python/cpython

X Title: bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). by ericsnowcurrently · Pull Request #11617 · python/cpython

Description: This is part of the work to improve isolation between subinterpreters. We need a way for one interpreter to ask another interpreter to do small low-level tasks, like safely decref an object owned by the other interpreter. The existing Py_AddPendingCall() (part of the public C-API) is specific to the main interpreter, so we factor out a private per-interpreter _Py_AddPendingCall(). This involves moving the global "pending calls" state to PyInterpreterState. As part of this change, we start tracking if each interpreter is "active" or finalizing. "Active" means that the interpreter is currently running the eval loop. We also start tracking the per-interpreter "active" thread ID rather than the global "main" thread ID. https://bugs.python.org/issue33608

Open Graph Description: This is part of the work to improve isolation between subinterpreters. We need a way for one interpreter to ask another interpreter to do small low-level tasks, like safely decref an object owned b...

X Description: This is part of the work to improve isolation between subinterpreters. We need a way for one interpreter to ask another interpreter to do small low-level tasks, like safely decref an object owned b...

Opengraph URL: https://github.com/python/cpython/pull/11617

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bpo-33608: Factor out a private, per-interpreter _Py_AddPendingCall(). https://github.com/python/cpython/pull/11617/files#top
Show all changes 15 commits https://github.com/python/cpython/pull/11617/files
95996fb Zero-out PyInterpreterState when initializing. ericsnowcurrently Sep 10, 2018 https://github.com/python/cpython/pull/11617/commits/95996fb56356ec3bb3ba525bbae09f253e1f2771
e33324f Add _PyRuntimeState.main_thread. ericsnowcurrently Sep 15, 2018 https://github.com/python/cpython/pull/11617/commits/e33324ffb060438be54497ee68f75098fddc5f0d
e6f788e Factor out _add_pending_call() and _pop_pending_call(). ericsnowcurrently Dec 4, 2018 https://github.com/python/cpython/pull/11617/commits/e6f788e8ab3d0b4f91983f0f71ead31f82d96fc4
8794b79 Move pending calls from _PyRuntimeState to PyIntepreterState. ericsnowcurrently Jul 13, 2018 https://github.com/python/cpython/pull/11617/commits/8794b79627032fed2b90efb85b3102888e889cf6
0c36b4c Explicitly pass the interpreter to the stateful ceval macros. ericsnowcurrently Sep 10, 2018 https://github.com/python/cpython/pull/11617/commits/0c36b4c159b67b2cb5471e49641fb92ab371e480
01cb55d Add a note about pending calls during interpreter cleanup. ericsnowcurrently Jul 13, 2018 https://github.com/python/cpython/pull/11617/commits/01cb55dcfa4a4a9de59871619fb4b7ad16e655f6
3fd1b0f Use the internal function. ericsnowcurrently Sep 14, 2018 https://github.com/python/cpython/pull/11617/commits/3fd1b0fef76ecd48dc3ba036518cc2f5d9442b66
1160c4d Make any remaining pending calls before shutdown. ericsnowcurrently Sep 15, 2018 https://github.com/python/cpython/pull/11617/commits/1160c4de54e833b0df7a30f1155476f73f6e5b6e
54cc326 Prevent adding pending calls if finalizing. ericsnowcurrently Sep 15, 2018 https://github.com/python/cpython/pull/11617/commits/54cc32622b431369126739c8126801d6e38ba5c0
117a9cf Add a NEWS entry. ericsnowcurrently Sep 15, 2018 https://github.com/python/cpython/pull/11617/commits/117a9cfb7e7bf15b9f0c1e0bbc3fe80a550491b6
4f447cd Optionally lock a pending call to a specific thread. ericsnowcurrently Sep 15, 2018 https://github.com/python/cpython/pull/11617/commits/4f447cd161b5760cb74128630ceaace0fa6a9930
5bd5c80 Move core-only field to end of struct. ericsnowcurrently Feb 1, 2019 https://github.com/python/cpython/pull/11617/commits/5bd5c803efda86b7c3700fc2a97beb0b5e5e083a
32d194a Factor out struct _ceval_interpreter_state. ericsnowcurrently Feb 1, 2019 https://github.com/python/cpython/pull/11617/commits/32d194abb837a052bd25f6f3846993dfdd5d1478
513c658 Add a TODO. ericsnowcurrently Feb 18, 2019 https://github.com/python/cpython/pull/11617/commits/513c65831617ff48588e6f9f3edb47c54be2b7a9
15fd123 Fix PyEval_ReInitThreads(). ericsnowcurrently Feb 23, 2019 https://github.com/python/cpython/pull/11617/commits/15fd1234c6a61d2a4093a043490dba967a317577
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