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Edit File: pycore_pyatomic_ft_wrappers.h

// This header file provides wrappers around the atomic operations found in // `pyatomic.h` that are only atomic in free-threaded builds. // // These are intended to be used in places where atomics are required in // free-threaded builds, but not in the default build, and we don't want to // introduce the potential performance overhead of an atomic operation in the // default build. // // All usages of these macros should be replaced with unconditionally atomic or // non-atomic versions, and this file should be removed, once the dust settles // on free threading. #ifndef Py_ATOMIC_FT_WRAPPERS_H #define Py_ATOMIC_FT_WRAPPERS_H #ifdef __cplusplus extern "C" { #endif #ifndef Py_BUILD_CORE #error "this header requires Py_BUILD_CORE define" #endif #ifdef Py_GIL_DISABLED #define FT_ATOMIC_LOAD_PTR(value) _Py_atomic_load_ptr(&value) #define FT_ATOMIC_STORE_PTR(value, new_value) _Py_atomic_store_ptr(&value, new_value) #define FT_ATOMIC_LOAD_SSIZE(value) _Py_atomic_load_ssize(&value) #define FT_ATOMIC_LOAD_SSIZE_ACQUIRE(value) \ _Py_atomic_load_ssize_acquire(&value) #define FT_ATOMIC_LOAD_SSIZE_RELAXED(value) \ _Py_atomic_load_ssize_relaxed(&value) #define FT_ATOMIC_STORE_PTR(value, new_value) \ _Py_atomic_store_ptr(&value, new_value) #define FT_ATOMIC_LOAD_PTR_ACQUIRE(value) \ _Py_atomic_load_ptr_acquire(&value) #define FT_ATOMIC_LOAD_UINTPTR_ACQUIRE(value) \ _Py_atomic_load_uintptr_acquire(&value) #define FT_ATOMIC_LOAD_PTR_RELAXED(value) \ _Py_atomic_load_ptr_relaxed(&value) #define FT_ATOMIC_LOAD_UINT8(value) \ _Py_atomic_load_uint8(&value) #define FT_ATOMIC_STORE_UINT8(value, new_value) \ _Py_atomic_store_uint8(&value, new_value) #define FT_ATOMIC_LOAD_UINT8_RELAXED(value) \ _Py_atomic_load_uint8_relaxed(&value) #define FT_ATOMIC_LOAD_UINT16_RELAXED(value) \ _Py_atomic_load_uint16_relaxed(&value) #define FT_ATOMIC_LOAD_UINT32_RELAXED(value) \ _Py_atomic_load_uint32_relaxed(&value) #define FT_ATOMIC_LOAD_ULONG_RELAXED(value) \ _Py_atomic_load_ulong_relaxed(&value) #define FT_ATOMIC_STORE_PTR_RELAXED(value, new_value) \ _Py_atomic_store_ptr_relaxed(&value, new_value) #define FT_ATOMIC_STORE_PTR_RELEASE(value, new_value) \ _Py_atomic_store_ptr_release(&value, new_value) #define FT_ATOMIC_STORE_UINTPTR_RELEASE(value, new_value) \ _Py_atomic_store_uintptr_release(&value, new_value) #define FT_ATOMIC_STORE_SSIZE_RELAXED(value, new_value) \ _Py_atomic_store_ssize_relaxed(&value, new_value) #define FT_ATOMIC_STORE_UINT8_RELAXED(value, new_value) \ _Py_atomic_store_uint8_relaxed(&value, new_value) #define FT_ATOMIC_STORE_UINT16_RELAXED(value, new_value) \ _Py_atomic_store_uint16_relaxed(&value, new_value) #define FT_ATOMIC_STORE_UINT32_RELAXED(value, new_value) \ _Py_atomic_store_uint32_relaxed(&value, new_value) #else #define FT_ATOMIC_LOAD_PTR(value) value #define FT_ATOMIC_STORE_PTR(value, new_value) value = new_value #define FT_ATOMIC_LOAD_SSIZE(value) value #define FT_ATOMIC_LOAD_SSIZE_ACQUIRE(value) value #define FT_ATOMIC_LOAD_SSIZE_RELAXED(value) value #define FT_ATOMIC_STORE_PTR(value, new_value) value = new_value #define FT_ATOMIC_LOAD_PTR_ACQUIRE(value) value #define FT_ATOMIC_LOAD_UINTPTR_ACQUIRE(value) value #define FT_ATOMIC_LOAD_PTR_RELAXED(value) value #define FT_ATOMIC_LOAD_UINT8(value) value #define FT_ATOMIC_STORE_UINT8(value, new_value) value = new_value #define FT_ATOMIC_LOAD_UINT8_RELAXED(value) value #define FT_ATOMIC_LOAD_UINT16_RELAXED(value) value #define FT_ATOMIC_LOAD_UINT32_RELAXED(value) value #define FT_ATOMIC_LOAD_ULONG_RELAXED(value) value #define FT_ATOMIC_STORE_PTR_RELAXED(value, new_value) value = new_value #define FT_ATOMIC_STORE_PTR_RELEASE(value, new_value) value = new_value #define FT_ATOMIC_STORE_UINTPTR_RELEASE(value, new_value) value = new_value #define FT_ATOMIC_STORE_SSIZE_RELAXED(value, new_value) value = new_value #define FT_ATOMIC_STORE_UINT8_RELAXED(value, new_value) value = new_value #define FT_ATOMIC_STORE_UINT16_RELAXED(value, new_value) value = new_value #define FT_ATOMIC_STORE_UINT32_RELAXED(value, new_value) value = new_value #endif #ifdef __cplusplus } #endif #endif /* !Py_ATOMIC_FT_WRAPPERS_H */