diff options
| -rw-r--r-- | Include/internal/pycore_gc.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Include/internal/pycore_gc.h b/Include/internal/pycore_gc.h index d2f5c69..aeb0723 100644 --- a/Include/internal/pycore_gc.h +++ b/Include/internal/pycore_gc.h @@ -43,6 +43,7 @@ static inline PyObject* _Py_FROM_GC(PyGC_Head *gc) { # define _PyGC_BITS_FINALIZED (2) # define _PyGC_BITS_UNREACHABLE (4) # define _PyGC_BITS_FROZEN (8) +# define _PyGC_BITS_SHARED (16) #endif /* True if the object is currently tracked by the GC. */ @@ -68,6 +69,22 @@ static inline int _PyObject_GC_MAY_BE_TRACKED(PyObject *obj) { return 1; } +#ifdef Py_GIL_DISABLED + +/* True if an object is shared between multiple threads and + * needs special purpose when freeing to do the possibility + * of in-flight lock-free reads occuring */ +static inline int _PyObject_GC_IS_SHARED(PyObject *op) { + return (op->ob_gc_bits & _PyGC_BITS_SHARED) != 0; +} +#define _PyObject_GC_IS_SHARED(op) _PyObject_GC_IS_SHARED(_Py_CAST(PyObject*, op)) + +static inline void _PyObject_GC_SET_SHARED(PyObject *op) { + op->ob_gc_bits |= _PyGC_BITS_SHARED; +} +#define _PyObject_GC_SET_SHARED(op) _PyObject_GC_SET_SHARED(_Py_CAST(PyObject*, op)) + +#endif /* Bit flags for _gc_prev */ /* Bit 0 is set when tp_finalize is called */ |