Commit Graph

3 Commits

Author SHA1 Message Date
Hugo van Kemenade 3b3ec0d77f
gh-111863: Rename `Py_NOGIL` to `Py_GIL_DISABLED` (#111864)
Rename Py_NOGIL to Py_GIL_DISABLED
2023-11-20 15:52:00 +02:00
Sam Gross 289af86122
gh-111569: Fix critical sections test on WebAssembly (GH-111897)
This adds a macro `Py_CAN_START_THREADS` that corresponds to the Python
function `test.support.threading_helper.can_start_thread()`. WASI and
some Emscripten builds do not have a working pthread implementation.

This macro is used to guard the critical sections C API tests that
require a working threads implementation.
2023-11-09 15:37:11 -08:00
Sam Gross 31c90d5838
gh-111569: Implement Python critical section API (gh-111571)
Critical sections are helpers to replace the global interpreter lock
with finer grained locking.  They provide similar guarantees to the GIL
and avoid the deadlock risk that plain locking involves.  Critical
sections are implicitly ended whenever the GIL would be released.  They
are resumed when the GIL would be acquired.  Nested critical sections
behave as if the sections were interleaved.
2023-11-08 15:39:29 -07:00