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| author | Victor Stinner <vstinner@python.org> | 2020-03-19 02:41:21 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-03-19 02:41:21 +0100 |
| commit | 50e6e991781db761c496561a995541ca8d83ff87 (patch) | |
| tree | 3380890960438581d8262ad24e2c8b346d664c87 /Doc/whatsnew | |
| parent | 3cde88439d542ed8ca6395acc8dfffd174ecca18 (diff) | |
| download | cpython-git-50e6e991781db761c496561a995541ca8d83ff87.tar.gz | |
bpo-39984: Move pending calls to PyInterpreterState (GH-19066)
If Py_AddPendingCall() is called in a subinterpreter, the function is
now scheduled to be called from the subinterpreter, rather than being
called from the main interpreter.
Each subinterpreter now has its own list of scheduled calls.
* Move pending and eval_breaker fields from _PyRuntimeState.ceval
to PyInterpreterState.ceval.
* new_interpreter() now calls _PyEval_InitThreads() to create
pending calls lock.
* Fix Py_AddPendingCall() for subinterpreters. It now calls
_PyThreadState_GET() which works in a subinterpreter if the
caller holds the GIL, and only falls back on
PyGILState_GetThisThreadState() if _PyThreadState_GET()
returns NULL.
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/3.9.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.9.rst b/Doc/whatsnew/3.9.rst index 6a6d1ee38c..5e8cdf585f 100644 --- a/Doc/whatsnew/3.9.rst +++ b/Doc/whatsnew/3.9.rst @@ -514,6 +514,12 @@ Build and C API Changes Extension modules without module state (``m_size <= 0``) are not affected. +* If :c:func:`Py_AddPendingCall` is called in a subinterpreter, the function is + now scheduled to be called from the subinterpreter, rather than being called + from the main interpreter. Each subinterpreter now has its own list of + scheduled calls. + (Contributed by Victor Stinner in :issue:`39984`.) + Deprecated ========== |