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gh-137514: Add a free-threading wrapper for mutexes (GH-137515)

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Add `FT_MUTEX_LOCK`/`FT_MUTEX_UNLOCK`, which call `PyMutex_Lock` and `PyMutex_Unlock` on the free-threaded build, and no-op otherwise.
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Peter Bierma 2025-08-07 11:24:50 -04:00 • committed by GitHub
parent dec624e0af
commit 082f370cdd
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9 changed files with 44 additions and 88 deletions
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4
Include/internal/pycore_pyatomic_ft_wrappers.h
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@ -111,6 +111,8 @@ extern "C" {
_Py_atomic_load_ullong_relaxed(&value)
#define FT_ATOMIC_ADD_SSIZE(value, new_value) \
(void)_Py_atomic_add_ssize(&value, new_value)
#define FT_MUTEX_LOCK(lock) PyMutex_Lock(lock)
#define FT_MUTEX_UNLOCK(lock) PyMutex_Unlock(lock)
#else
#define FT_ATOMIC_LOAD_PTR(value) value
@ -159,6 +161,8 @@ extern "C" {
#define FT_ATOMIC_LOAD_ULLONG_RELAXED(value) value
#define FT_ATOMIC_STORE_ULLONG_RELAXED(value, new_value) value = new_value
#define FT_ATOMIC_ADD_SSIZE(value, new_value) (void)(value += new_value)
#define FT_MUTEX_LOCK(lock) do {} while (0)
#define FT_MUTEX_UNLOCK(lock) do {} while (0)
#endif