cpython/Modules/_multiprocessing
Brett Simmers c2627d6eea
gh-116322: Add Py_mod_gil module slot (#116882)
This PR adds the ability to enable the GIL if it was disabled at
interpreter startup, and modifies the multi-phase module initialization
path to enable the GIL when loading a module, unless that module's spec
includes a slot indicating it can run safely without the GIL.

PEP 703 called the constant for the slot `Py_mod_gil_not_used`; I went
with `Py_MOD_GIL_NOT_USED` for consistency with gh-104148.

A warning will be issued up to once per interpreter for the first
GIL-using module that is loaded. If `-v` is given, a shorter message
will be printed to stderr every time a GIL-using module is loaded
(including the first one that issues a warning).
2024-05-03 11:30:55 -04:00
..
clinic gh-117435: Make `SemLock` thread-safe in free-threaded build (#117436) 2024-04-04 14:09:38 -04:00
multiprocessing.c gh-116322: Add Py_mod_gil module slot (#116882) 2024-05-03 11:30:55 -04:00
multiprocessing.h gh-108765: multiprocessing.h includes <unistd.h> (#108823) 2023-09-02 17:54:39 +00:00
posixshmem.c gh-116322: Add Py_mod_gil module slot (#116882) 2024-05-03 11:30:55 -04:00
semaphore.c gh-117435: Make `SemLock` thread-safe in free-threaded build (#117436) 2024-04-04 14:09:38 -04:00