// 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 … #define FT_ATOMIC_STORE_PTR … #define FT_ATOMIC_LOAD_SSIZE … #define FT_ATOMIC_LOAD_SSIZE_ACQUIRE … #define FT_ATOMIC_LOAD_SSIZE_RELAXED … #define FT_ATOMIC_STORE_PTR … #define FT_ATOMIC_LOAD_PTR_ACQUIRE … #define FT_ATOMIC_LOAD_UINTPTR_ACQUIRE … #define FT_ATOMIC_LOAD_PTR_RELAXED … #define FT_ATOMIC_LOAD_UINT8 … #define FT_ATOMIC_STORE_UINT8 … #define FT_ATOMIC_LOAD_UINT8_RELAXED … #define FT_ATOMIC_LOAD_UINT16_RELAXED … #define FT_ATOMIC_LOAD_UINT32_RELAXED … #define FT_ATOMIC_LOAD_ULONG_RELAXED … #define FT_ATOMIC_STORE_PTR_RELAXED … #define FT_ATOMIC_STORE_PTR_RELEASE … #define FT_ATOMIC_STORE_UINTPTR_RELEASE … #define FT_ATOMIC_STORE_SSIZE_RELAXED … #define FT_ATOMIC_STORE_UINT8_RELAXED … #define FT_ATOMIC_STORE_UINT16_RELAXED … #define FT_ATOMIC_STORE_UINT32_RELAXED … #else #define FT_ATOMIC_LOAD_PTR(value) … #define FT_ATOMIC_STORE_PTR(value, new_value) … #define FT_ATOMIC_LOAD_SSIZE(value) … #define FT_ATOMIC_LOAD_SSIZE_ACQUIRE(value) … #define FT_ATOMIC_LOAD_SSIZE_RELAXED(value) … #define FT_ATOMIC_STORE_PTR(value, new_value) … #define FT_ATOMIC_LOAD_PTR_ACQUIRE(value) … #define FT_ATOMIC_LOAD_UINTPTR_ACQUIRE(value) … #define FT_ATOMIC_LOAD_PTR_RELAXED(value) … #define FT_ATOMIC_LOAD_UINT8(value) … #define FT_ATOMIC_STORE_UINT8(value, new_value) … #define FT_ATOMIC_LOAD_UINT8_RELAXED(value) … #define FT_ATOMIC_LOAD_UINT16_RELAXED(value) … #define FT_ATOMIC_LOAD_UINT32_RELAXED(value) … #define FT_ATOMIC_LOAD_ULONG_RELAXED(value) … #define FT_ATOMIC_STORE_PTR_RELAXED(value, new_value) … #define FT_ATOMIC_STORE_PTR_RELEASE(value, new_value) … #define FT_ATOMIC_STORE_UINTPTR_RELEASE(value, new_value) … #define FT_ATOMIC_STORE_SSIZE_RELAXED(value, new_value) … #define FT_ATOMIC_STORE_UINT8_RELAXED(value, new_value) … #define FT_ATOMIC_STORE_UINT16_RELAXED(value, new_value) … #define FT_ATOMIC_STORE_UINT32_RELAXED(value, new_value) … #endif #ifdef __cplusplus } #endif #endif /* !Py_ATOMIC_FT_WRAPPERS_H */
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