mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-27 12:16:04 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

gh-116322: Add Py_mod_gil module slot (#116882)

Browse source 
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).
This commit is contained in:
Brett Simmers 2024-05-03 08:30:55 -07:00 • committed by GitHub
parent 3e818afb9b
commit c2627d6eea
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
123 changed files with 376 additions and 62 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Python/bltinmodule.c
View file

@ -3124,6 +3124,9 @@ _PyBuiltin_Init(PyInterpreterState *interp)
mod = _PyModule_CreateInitialized(&builtinsmodule, PYTHON_API_VERSION);
if (mod == NULL)
return NULL;
#ifdef Py_GIL_DISABLED
PyModule_ExperimentalSetGIL(mod, Py_MOD_GIL_NOT_USED);
#endif
dict = PyModule_GetDict(mod);
#ifdef Py_TRACE_REFS