Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2026-04-15 00:00:57 +00:00
Code Issues Projects Releases Packages Wiki Activity

[3.14] gh-144981: Make PyUnstable_Code_SetExtra/GetExtra thread-safe (GH-144980) (#145052)

Browse source 
Co-authored-by: Alper <alperyoney@fb.com>
This commit is contained in:
Miss Islington (bot) 2026-03-05 14:26:09 +01:00 • committed by GitHub
parent f42692838c
commit 7b3e6bde26
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
5 changed files with 250 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

20
Python/ceval.c
View file

@ -3486,11 +3486,27 @@ PyUnstable_Eval_RequestCodeExtraIndex(freefunc free)
PyInterpreterState *interp = _PyInterpreterState_GET();
Py_ssize_t new_index;
if (interp->co_extra_user_count == MAX_CO_EXTRA_USERS - 1) {
#ifdef Py_GIL_DISABLED
struct _py_code_state *state = &interp->code_state;
FT_MUTEX_LOCK(&state->mutex);
#endif
if (interp->co_extra_user_count >= MAX_CO_EXTRA_USERS - 1) {
#ifdef Py_GIL_DISABLED
FT_MUTEX_UNLOCK(&state->mutex);
#endif
return -1;
}
new_index = interp->co_extra_user_count++;
new_index = interp->co_extra_user_count;
interp->co_extra_freefuncs[new_index] = free;
// Publish freefuncs[new_index] before making the index visible.
FT_ATOMIC_STORE_SSIZE_RELEASE(interp->co_extra_user_count, new_index + 1);
#ifdef Py_GIL_DISABLED
FT_MUTEX_UNLOCK(&state->mutex);
#endif
return new_index;
}