diff options
Diffstat (limited to 'contrib/tools/python3/Include/cpython/pyatomic_msc.h')
| -rw-r--r-- | contrib/tools/python3/Include/cpython/pyatomic_msc.h | 1095 |
1 files changed, 1095 insertions, 0 deletions
diff --git a/contrib/tools/python3/Include/cpython/pyatomic_msc.h b/contrib/tools/python3/Include/cpython/pyatomic_msc.h new file mode 100644 index 00000000000..84da21bdcbf --- /dev/null +++ b/contrib/tools/python3/Include/cpython/pyatomic_msc.h @@ -0,0 +1,1095 @@ +// This is the implementation of Python atomic operations for MSVC if the +// compiler does not support C11 or C++11 atomics. +// +// MSVC intrinsics are defined on char, short, long, __int64, and pointer +// types. Note that long and int are both 32-bits even on 64-bit Windows, +// so operations on int are cast to long. +// +// The volatile keyword has additional memory ordering semantics on MSVC. On +// x86 and x86-64, volatile accesses have acquire-release semantics. On ARM64, +// volatile accesses behave like C11's memory_order_relaxed. + +#ifndef Py_ATOMIC_MSC_H +# error "this header file must not be included directly" +#endif + +#include <intrin.h> + +#define _Py_atomic_ASSERT_ARG_TYPE(TYPE) \ + Py_BUILD_ASSERT(sizeof(*obj) == sizeof(TYPE)) + + +// --- _Py_atomic_add -------------------------------------------------------- + +static inline int8_t +_Py_atomic_add_int8(int8_t *obj, int8_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(char); + return (int8_t)_InterlockedExchangeAdd8((volatile char *)obj, (char)value); +} + +static inline int16_t +_Py_atomic_add_int16(int16_t *obj, int16_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(short); + return (int16_t)_InterlockedExchangeAdd16((volatile short *)obj, (short)value); +} + +static inline int32_t +_Py_atomic_add_int32(int32_t *obj, int32_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(long); + return (int32_t)_InterlockedExchangeAdd((volatile long *)obj, (long)value); +} + +static inline int64_t +_Py_atomic_add_int64(int64_t *obj, int64_t value) +{ +#if defined(_M_X64) || defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(__int64); + return (int64_t)_InterlockedExchangeAdd64((volatile __int64 *)obj, (__int64)value); +#else + int64_t old_value = _Py_atomic_load_int64_relaxed(obj); + for (;;) { + int64_t new_value = old_value + value; + if (_Py_atomic_compare_exchange_int64(obj, &old_value, new_value)) { + return old_value; + } + } +#endif +} + + +static inline uint8_t +_Py_atomic_add_uint8(uint8_t *obj, uint8_t value) +{ + return (uint8_t)_Py_atomic_add_int8((int8_t *)obj, (int8_t)value); +} + +static inline uint16_t +_Py_atomic_add_uint16(uint16_t *obj, uint16_t value) +{ + return (uint16_t)_Py_atomic_add_int16((int16_t *)obj, (int16_t)value); +} + +static inline uint32_t +_Py_atomic_add_uint32(uint32_t *obj, uint32_t value) +{ + return (uint32_t)_Py_atomic_add_int32((int32_t *)obj, (int32_t)value); +} + +static inline int +_Py_atomic_add_int(int *obj, int value) +{ + _Py_atomic_ASSERT_ARG_TYPE(int32_t); + return (int)_Py_atomic_add_int32((int32_t *)obj, (int32_t)value); +} + +static inline unsigned int +_Py_atomic_add_uint(unsigned int *obj, unsigned int value) +{ + _Py_atomic_ASSERT_ARG_TYPE(int32_t); + return (unsigned int)_Py_atomic_add_int32((int32_t *)obj, (int32_t)value); +} + +static inline uint64_t +_Py_atomic_add_uint64(uint64_t *obj, uint64_t value) +{ + return (uint64_t)_Py_atomic_add_int64((int64_t *)obj, (int64_t)value); +} + +static inline intptr_t +_Py_atomic_add_intptr(intptr_t *obj, intptr_t value) +{ +#if SIZEOF_VOID_P == 8 + _Py_atomic_ASSERT_ARG_TYPE(int64_t); + return (intptr_t)_Py_atomic_add_int64((int64_t *)obj, (int64_t)value); +#else + _Py_atomic_ASSERT_ARG_TYPE(int32_t); + return (intptr_t)_Py_atomic_add_int32((int32_t *)obj, (int32_t)value); +#endif +} + +static inline uintptr_t +_Py_atomic_add_uintptr(uintptr_t *obj, uintptr_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(intptr_t); + return (uintptr_t)_Py_atomic_add_intptr((intptr_t *)obj, (intptr_t)value); +} + +static inline Py_ssize_t +_Py_atomic_add_ssize(Py_ssize_t *obj, Py_ssize_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(intptr_t); + return (Py_ssize_t)_Py_atomic_add_intptr((intptr_t *)obj, (intptr_t)value); +} + + +// --- _Py_atomic_compare_exchange ------------------------------------------- + +static inline int +_Py_atomic_compare_exchange_int8(int8_t *obj, int8_t *expected, int8_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(char); + int8_t initial = (int8_t)_InterlockedCompareExchange8( + (volatile char *)obj, + (char)value, + (char)*expected); + if (initial == *expected) { + return 1; + } + *expected = initial; + return 0; +} + +static inline int +_Py_atomic_compare_exchange_int16(int16_t *obj, int16_t *expected, int16_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(short); + int16_t initial = (int16_t)_InterlockedCompareExchange16( + (volatile short *)obj, + (short)value, + (short)*expected); + if (initial == *expected) { + return 1; + } + *expected = initial; + return 0; +} + +static inline int +_Py_atomic_compare_exchange_int32(int32_t *obj, int32_t *expected, int32_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(long); + int32_t initial = (int32_t)_InterlockedCompareExchange( + (volatile long *)obj, + (long)value, + (long)*expected); + if (initial == *expected) { + return 1; + } + *expected = initial; + return 0; +} + +static inline int +_Py_atomic_compare_exchange_int64(int64_t *obj, int64_t *expected, int64_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(__int64); + int64_t initial = (int64_t)_InterlockedCompareExchange64( + (volatile __int64 *)obj, + (__int64)value, + (__int64)*expected); + if (initial == *expected) { + return 1; + } + *expected = initial; + return 0; +} + +static inline int +_Py_atomic_compare_exchange_ptr(void *obj, void *expected, void *value) +{ + void *initial = _InterlockedCompareExchangePointer( + (void**)obj, + value, + *(void**)expected); + if (initial == *(void**)expected) { + return 1; + } + *(void**)expected = initial; + return 0; +} + + +static inline int +_Py_atomic_compare_exchange_uint8(uint8_t *obj, uint8_t *expected, uint8_t value) +{ + return _Py_atomic_compare_exchange_int8((int8_t *)obj, + (int8_t *)expected, + (int8_t)value); +} + +static inline int +_Py_atomic_compare_exchange_uint16(uint16_t *obj, uint16_t *expected, uint16_t value) +{ + return _Py_atomic_compare_exchange_int16((int16_t *)obj, + (int16_t *)expected, + (int16_t)value); +} + +static inline int +_Py_atomic_compare_exchange_uint32(uint32_t *obj, uint32_t *expected, uint32_t value) +{ + return _Py_atomic_compare_exchange_int32((int32_t *)obj, + (int32_t *)expected, + (int32_t)value); +} + +static inline int +_Py_atomic_compare_exchange_int(int *obj, int *expected, int value) +{ + _Py_atomic_ASSERT_ARG_TYPE(int32_t); + return _Py_atomic_compare_exchange_int32((int32_t *)obj, + (int32_t *)expected, + (int32_t)value); +} + +static inline int +_Py_atomic_compare_exchange_uint(unsigned int *obj, unsigned int *expected, unsigned int value) +{ + _Py_atomic_ASSERT_ARG_TYPE(int32_t); + return _Py_atomic_compare_exchange_int32((int32_t *)obj, + (int32_t *)expected, + (int32_t)value); +} + +static inline int +_Py_atomic_compare_exchange_uint64(uint64_t *obj, uint64_t *expected, uint64_t value) +{ + return _Py_atomic_compare_exchange_int64((int64_t *)obj, + (int64_t *)expected, + (int64_t)value); +} + +static inline int +_Py_atomic_compare_exchange_intptr(intptr_t *obj, intptr_t *expected, intptr_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return _Py_atomic_compare_exchange_ptr((void**)obj, + (void**)expected, + (void*)value); +} + +static inline int +_Py_atomic_compare_exchange_uintptr(uintptr_t *obj, uintptr_t *expected, uintptr_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return _Py_atomic_compare_exchange_ptr((void**)obj, + (void**)expected, + (void*)value); +} + +static inline int +_Py_atomic_compare_exchange_ssize(Py_ssize_t *obj, Py_ssize_t *expected, Py_ssize_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return _Py_atomic_compare_exchange_ptr((void**)obj, + (void**)expected, + (void*)value); +} + + +// --- _Py_atomic_exchange --------------------------------------------------- + +static inline int8_t +_Py_atomic_exchange_int8(int8_t *obj, int8_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(char); + return (int8_t)_InterlockedExchange8((volatile char *)obj, (char)value); +} + +static inline int16_t +_Py_atomic_exchange_int16(int16_t *obj, int16_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(short); + return (int16_t)_InterlockedExchange16((volatile short *)obj, (short)value); +} + +static inline int32_t +_Py_atomic_exchange_int32(int32_t *obj, int32_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(long); + return (int32_t)_InterlockedExchange((volatile long *)obj, (long)value); +} + +static inline int64_t +_Py_atomic_exchange_int64(int64_t *obj, int64_t value) +{ +#if defined(_M_X64) || defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(__int64); + return (int64_t)_InterlockedExchange64((volatile __int64 *)obj, (__int64)value); +#else + int64_t old_value = _Py_atomic_load_int64_relaxed(obj); + for (;;) { + if (_Py_atomic_compare_exchange_int64(obj, &old_value, value)) { + return old_value; + } + } +#endif +} + +static inline void* +_Py_atomic_exchange_ptr(void *obj, void *value) +{ + return (void*)_InterlockedExchangePointer((void * volatile *)obj, (void *)value); +} + + +static inline uint8_t +_Py_atomic_exchange_uint8(uint8_t *obj, uint8_t value) +{ + return (uint8_t)_Py_atomic_exchange_int8((int8_t *)obj, + (int8_t)value); +} + +static inline uint16_t +_Py_atomic_exchange_uint16(uint16_t *obj, uint16_t value) +{ + return (uint16_t)_Py_atomic_exchange_int16((int16_t *)obj, + (int16_t)value); +} + +static inline uint32_t +_Py_atomic_exchange_uint32(uint32_t *obj, uint32_t value) +{ + return (uint32_t)_Py_atomic_exchange_int32((int32_t *)obj, + (int32_t)value); +} + +static inline int +_Py_atomic_exchange_int(int *obj, int value) +{ + _Py_atomic_ASSERT_ARG_TYPE(int32_t); + return (int)_Py_atomic_exchange_int32((int32_t *)obj, + (int32_t)value); +} + +static inline unsigned int +_Py_atomic_exchange_uint(unsigned int *obj, unsigned int value) +{ + _Py_atomic_ASSERT_ARG_TYPE(int32_t); + return (unsigned int)_Py_atomic_exchange_int32((int32_t *)obj, + (int32_t)value); +} + +static inline uint64_t +_Py_atomic_exchange_uint64(uint64_t *obj, uint64_t value) +{ + return (uint64_t)_Py_atomic_exchange_int64((int64_t *)obj, + (int64_t)value); +} + +static inline intptr_t +_Py_atomic_exchange_intptr(intptr_t *obj, intptr_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return (intptr_t)_Py_atomic_exchange_ptr((void**)obj, + (void*)value); +} + +static inline uintptr_t +_Py_atomic_exchange_uintptr(uintptr_t *obj, uintptr_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return (uintptr_t)_Py_atomic_exchange_ptr((void**)obj, + (void*)value); +} + +static inline Py_ssize_t +_Py_atomic_exchange_ssize(Py_ssize_t *obj, Py_ssize_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return (Py_ssize_t)_Py_atomic_exchange_ptr((void**)obj, + (void*)value); +} + + +// --- _Py_atomic_and -------------------------------------------------------- + +static inline uint8_t +_Py_atomic_and_uint8(uint8_t *obj, uint8_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(char); + return (uint8_t)_InterlockedAnd8((volatile char *)obj, (char)value); +} + +static inline uint16_t +_Py_atomic_and_uint16(uint16_t *obj, uint16_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(short); + return (uint16_t)_InterlockedAnd16((volatile short *)obj, (short)value); +} + +static inline uint32_t +_Py_atomic_and_uint32(uint32_t *obj, uint32_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(long); + return (uint32_t)_InterlockedAnd((volatile long *)obj, (long)value); +} + +static inline uint64_t +_Py_atomic_and_uint64(uint64_t *obj, uint64_t value) +{ +#if defined(_M_X64) || defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(__int64); + return (uint64_t)_InterlockedAnd64((volatile __int64 *)obj, (__int64)value); +#else + uint64_t old_value = _Py_atomic_load_uint64_relaxed(obj); + for (;;) { + uint64_t new_value = old_value & value; + if (_Py_atomic_compare_exchange_uint64(obj, &old_value, new_value)) { + return old_value; + } + } +#endif +} + +static inline uintptr_t +_Py_atomic_and_uintptr(uintptr_t *obj, uintptr_t value) +{ +#if SIZEOF_VOID_P == 8 + _Py_atomic_ASSERT_ARG_TYPE(uint64_t); + return (uintptr_t)_Py_atomic_and_uint64((uint64_t *)obj, + (uint64_t)value); +#else + _Py_atomic_ASSERT_ARG_TYPE(uint32_t); + return (uintptr_t)_Py_atomic_and_uint32((uint32_t *)obj, + (uint32_t)value); +#endif +} + + +// --- _Py_atomic_or --------------------------------------------------------- + +static inline uint8_t +_Py_atomic_or_uint8(uint8_t *obj, uint8_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(char); + return (uint8_t)_InterlockedOr8((volatile char *)obj, (char)value); +} + +static inline uint16_t +_Py_atomic_or_uint16(uint16_t *obj, uint16_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(short); + return (uint16_t)_InterlockedOr16((volatile short *)obj, (short)value); +} + +static inline uint32_t +_Py_atomic_or_uint32(uint32_t *obj, uint32_t value) +{ + _Py_atomic_ASSERT_ARG_TYPE(long); + return (uint32_t)_InterlockedOr((volatile long *)obj, (long)value); +} + +static inline uint64_t +_Py_atomic_or_uint64(uint64_t *obj, uint64_t value) +{ +#if defined(_M_X64) || defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(__int64); + return (uint64_t)_InterlockedOr64((volatile __int64 *)obj, (__int64)value); +#else + uint64_t old_value = _Py_atomic_load_uint64_relaxed(obj); + for (;;) { + uint64_t new_value = old_value | value; + if (_Py_atomic_compare_exchange_uint64(obj, &old_value, new_value)) { + return old_value; + } + } +#endif +} + + +static inline uintptr_t +_Py_atomic_or_uintptr(uintptr_t *obj, uintptr_t value) +{ +#if SIZEOF_VOID_P == 8 + _Py_atomic_ASSERT_ARG_TYPE(uint64_t); + return (uintptr_t)_Py_atomic_or_uint64((uint64_t *)obj, + (uint64_t)value); +#else + _Py_atomic_ASSERT_ARG_TYPE(uint32_t); + return (uintptr_t)_Py_atomic_or_uint32((uint32_t *)obj, + (uint32_t)value); +#endif +} + + +// --- _Py_atomic_load ------------------------------------------------------- + +static inline uint8_t +_Py_atomic_load_uint8(const uint8_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(volatile uint8_t *)obj; +#elif defined(_M_ARM64) + return (uint8_t)__ldar8((unsigned __int8 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_uint8" +#endif +} + +static inline uint16_t +_Py_atomic_load_uint16(const uint16_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(volatile uint16_t *)obj; +#elif defined(_M_ARM64) + return (uint16_t)__ldar16((unsigned __int16 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_uint16" +#endif +} + +static inline uint32_t +_Py_atomic_load_uint32(const uint32_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(volatile uint32_t *)obj; +#elif defined(_M_ARM64) + return (uint32_t)__ldar32((unsigned __int32 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_uint32" +#endif +} + +static inline uint64_t +_Py_atomic_load_uint64(const uint64_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(volatile uint64_t *)obj; +#elif defined(_M_ARM64) + return (uint64_t)__ldar64((unsigned __int64 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_uint64" +#endif +} + +static inline int8_t +_Py_atomic_load_int8(const int8_t *obj) +{ + return (int8_t)_Py_atomic_load_uint8((const uint8_t *)obj); +} + +static inline int16_t +_Py_atomic_load_int16(const int16_t *obj) +{ + return (int16_t)_Py_atomic_load_uint16((const uint16_t *)obj); +} + +static inline int32_t +_Py_atomic_load_int32(const int32_t *obj) +{ + return (int32_t)_Py_atomic_load_uint32((const uint32_t *)obj); +} + +static inline int +_Py_atomic_load_int(const int *obj) +{ + _Py_atomic_ASSERT_ARG_TYPE(uint32_t); + return (int)_Py_atomic_load_uint32((uint32_t *)obj); +} + +static inline unsigned int +_Py_atomic_load_uint(const unsigned int *obj) +{ + _Py_atomic_ASSERT_ARG_TYPE(uint32_t); + return (unsigned int)_Py_atomic_load_uint32((uint32_t *)obj); +} + +static inline int64_t +_Py_atomic_load_int64(const int64_t *obj) +{ + return (int64_t)_Py_atomic_load_uint64((const uint64_t *)obj); +} + +static inline void* +_Py_atomic_load_ptr(const void *obj) +{ +#if SIZEOF_VOID_P == 8 + return (void*)_Py_atomic_load_uint64((const uint64_t *)obj); +#else + return (void*)_Py_atomic_load_uint32((const uint32_t *)obj); +#endif +} + +static inline intptr_t +_Py_atomic_load_intptr(const intptr_t *obj) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return (intptr_t)_Py_atomic_load_ptr((void*)obj); +} + +static inline uintptr_t +_Py_atomic_load_uintptr(const uintptr_t *obj) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return (uintptr_t)_Py_atomic_load_ptr((void*)obj); +} + +static inline Py_ssize_t +_Py_atomic_load_ssize(const Py_ssize_t *obj) +{ + _Py_atomic_ASSERT_ARG_TYPE(void*); + return (Py_ssize_t)_Py_atomic_load_ptr((void*)obj); +} + + +// --- _Py_atomic_load_relaxed ----------------------------------------------- + +static inline int +_Py_atomic_load_int_relaxed(const int *obj) +{ + return *(volatile int *)obj; +} + +static inline int8_t +_Py_atomic_load_int8_relaxed(const int8_t *obj) +{ + return *(volatile int8_t *)obj; +} + +static inline int16_t +_Py_atomic_load_int16_relaxed(const int16_t *obj) +{ + return *(volatile int16_t *)obj; +} + +static inline int32_t +_Py_atomic_load_int32_relaxed(const int32_t *obj) +{ + return *(volatile int32_t *)obj; +} + +static inline int64_t +_Py_atomic_load_int64_relaxed(const int64_t *obj) +{ + return *(volatile int64_t *)obj; +} + +static inline intptr_t +_Py_atomic_load_intptr_relaxed(const intptr_t *obj) +{ + return *(volatile intptr_t *)obj; +} + +static inline uint8_t +_Py_atomic_load_uint8_relaxed(const uint8_t *obj) +{ + return *(volatile uint8_t *)obj; +} + +static inline uint16_t +_Py_atomic_load_uint16_relaxed(const uint16_t *obj) +{ + return *(volatile uint16_t *)obj; +} + +static inline uint32_t +_Py_atomic_load_uint32_relaxed(const uint32_t *obj) +{ + return *(volatile uint32_t *)obj; +} + +static inline uint64_t +_Py_atomic_load_uint64_relaxed(const uint64_t *obj) +{ + return *(volatile uint64_t *)obj; +} + +static inline uintptr_t +_Py_atomic_load_uintptr_relaxed(const uintptr_t *obj) +{ + return *(volatile uintptr_t *)obj; +} + +static inline unsigned int +_Py_atomic_load_uint_relaxed(const unsigned int *obj) +{ + return *(volatile unsigned int *)obj; +} + +static inline Py_ssize_t +_Py_atomic_load_ssize_relaxed(const Py_ssize_t *obj) +{ + return *(volatile Py_ssize_t *)obj; +} + +static inline void* +_Py_atomic_load_ptr_relaxed(const void *obj) +{ + return *(void * volatile *)obj; +} + +static inline unsigned long long +_Py_atomic_load_ullong_relaxed(const unsigned long long *obj) +{ + return *(volatile unsigned long long *)obj; +} + + +// --- _Py_atomic_store ------------------------------------------------------ + +static inline void +_Py_atomic_store_int(int *obj, int value) +{ + (void)_Py_atomic_exchange_int(obj, value); +} + +static inline void +_Py_atomic_store_int8(int8_t *obj, int8_t value) +{ + (void)_Py_atomic_exchange_int8(obj, value); +} + +static inline void +_Py_atomic_store_int16(int16_t *obj, int16_t value) +{ + (void)_Py_atomic_exchange_int16(obj, value); +} + +static inline void +_Py_atomic_store_int32(int32_t *obj, int32_t value) +{ + (void)_Py_atomic_exchange_int32(obj, value); +} + +static inline void +_Py_atomic_store_int64(int64_t *obj, int64_t value) +{ + (void)_Py_atomic_exchange_int64(obj, value); +} + +static inline void +_Py_atomic_store_intptr(intptr_t *obj, intptr_t value) +{ + (void)_Py_atomic_exchange_intptr(obj, value); +} + +static inline void +_Py_atomic_store_uint8(uint8_t *obj, uint8_t value) +{ + (void)_Py_atomic_exchange_uint8(obj, value); +} + +static inline void +_Py_atomic_store_uint16(uint16_t *obj, uint16_t value) +{ + (void)_Py_atomic_exchange_uint16(obj, value); +} + +static inline void +_Py_atomic_store_uint32(uint32_t *obj, uint32_t value) +{ + (void)_Py_atomic_exchange_uint32(obj, value); +} + +static inline void +_Py_atomic_store_uint64(uint64_t *obj, uint64_t value) +{ + (void)_Py_atomic_exchange_uint64(obj, value); +} + +static inline void +_Py_atomic_store_uintptr(uintptr_t *obj, uintptr_t value) +{ + (void)_Py_atomic_exchange_uintptr(obj, value); +} + +static inline void +_Py_atomic_store_uint(unsigned int *obj, unsigned int value) +{ + (void)_Py_atomic_exchange_uint(obj, value); +} + +static inline void +_Py_atomic_store_ptr(void *obj, void *value) +{ + (void)_Py_atomic_exchange_ptr(obj, value); +} + +static inline void +_Py_atomic_store_ssize(Py_ssize_t *obj, Py_ssize_t value) +{ + (void)_Py_atomic_exchange_ssize(obj, value); +} + + +// --- _Py_atomic_store_relaxed ---------------------------------------------- + +static inline void +_Py_atomic_store_int_relaxed(int *obj, int value) +{ + *(volatile int *)obj = value; +} + +static inline void +_Py_atomic_store_int8_relaxed(int8_t *obj, int8_t value) +{ + *(volatile int8_t *)obj = value; +} + +static inline void +_Py_atomic_store_int16_relaxed(int16_t *obj, int16_t value) +{ + *(volatile int16_t *)obj = value; +} + +static inline void +_Py_atomic_store_int32_relaxed(int32_t *obj, int32_t value) +{ + *(volatile int32_t *)obj = value; +} + +static inline void +_Py_atomic_store_int64_relaxed(int64_t *obj, int64_t value) +{ + *(volatile int64_t *)obj = value; +} + +static inline void +_Py_atomic_store_intptr_relaxed(intptr_t *obj, intptr_t value) +{ + *(volatile intptr_t *)obj = value; +} + +static inline void +_Py_atomic_store_uint8_relaxed(uint8_t *obj, uint8_t value) +{ + *(volatile uint8_t *)obj = value; +} + +static inline void +_Py_atomic_store_uint16_relaxed(uint16_t *obj, uint16_t value) +{ + *(volatile uint16_t *)obj = value; +} + +static inline void +_Py_atomic_store_uint32_relaxed(uint32_t *obj, uint32_t value) +{ + *(volatile uint32_t *)obj = value; +} + +static inline void +_Py_atomic_store_uint64_relaxed(uint64_t *obj, uint64_t value) +{ + *(volatile uint64_t *)obj = value; +} + +static inline void +_Py_atomic_store_uintptr_relaxed(uintptr_t *obj, uintptr_t value) +{ + *(volatile uintptr_t *)obj = value; +} + +static inline void +_Py_atomic_store_uint_relaxed(unsigned int *obj, unsigned int value) +{ + *(volatile unsigned int *)obj = value; +} + +static inline void +_Py_atomic_store_ptr_relaxed(void *obj, void* value) +{ + *(void * volatile *)obj = value; +} + +static inline void +_Py_atomic_store_ssize_relaxed(Py_ssize_t *obj, Py_ssize_t value) +{ + *(volatile Py_ssize_t *)obj = value; +} + +static inline void +_Py_atomic_store_ullong_relaxed(unsigned long long *obj, + unsigned long long value) +{ + *(volatile unsigned long long *)obj = value; +} + + +// --- _Py_atomic_load_ptr_acquire / _Py_atomic_store_ptr_release ------------ + +static inline void * +_Py_atomic_load_ptr_acquire(const void *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(void * volatile *)obj; +#elif defined(_M_ARM64) + return (void *)__ldar64((unsigned __int64 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_ptr_acquire" +#endif +} + +static inline uintptr_t +_Py_atomic_load_uintptr_acquire(const uintptr_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(uintptr_t volatile *)obj; +#elif defined(_M_ARM64) + return (uintptr_t)__ldar64((unsigned __int64 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_uintptr_acquire" +#endif +} + +static inline void +_Py_atomic_store_ptr_release(void *obj, void *value) +{ +#if defined(_M_X64) || defined(_M_IX86) + *(void * volatile *)obj = value; +#elif defined(_M_ARM64) + __stlr64((unsigned __int64 volatile *)obj, (uintptr_t)value); +#else +# error "no implementation of _Py_atomic_store_ptr_release" +#endif +} + +static inline void +_Py_atomic_store_uintptr_release(uintptr_t *obj, uintptr_t value) +{ +#if defined(_M_X64) || defined(_M_IX86) + *(uintptr_t volatile *)obj = value; +#elif defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(unsigned __int64); + __stlr64((unsigned __int64 volatile *)obj, (unsigned __int64)value); +#else +# error "no implementation of _Py_atomic_store_uintptr_release" +#endif +} + +static inline void +_Py_atomic_store_int_release(int *obj, int value) +{ +#if defined(_M_X64) || defined(_M_IX86) + *(int volatile *)obj = value; +#elif defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(unsigned __int32); + __stlr32((unsigned __int32 volatile *)obj, (unsigned __int32)value); +#else +# error "no implementation of _Py_atomic_store_int_release" +#endif +} + +static inline void +_Py_atomic_store_ssize_release(Py_ssize_t *obj, Py_ssize_t value) +{ +#if defined(_M_X64) || defined(_M_IX86) + *(Py_ssize_t volatile *)obj = value; +#elif defined(_M_ARM64) + __stlr64((unsigned __int64 volatile *)obj, (unsigned __int64)value); +#else +# error "no implementation of _Py_atomic_store_ssize_release" +#endif +} + +static inline int +_Py_atomic_load_int_acquire(const int *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(int volatile *)obj; +#elif defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(unsigned __int32); + return (int)__ldar32((unsigned __int32 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_int_acquire" +#endif +} + +static inline void +_Py_atomic_store_uint32_release(uint32_t *obj, uint32_t value) +{ +#if defined(_M_X64) || defined(_M_IX86) + *(uint32_t volatile *)obj = value; +#elif defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(unsigned __int32); + __stlr32((unsigned __int32 volatile *)obj, (unsigned __int32)value); +#else +# error "no implementation of _Py_atomic_store_uint32_release" +#endif +} + +static inline void +_Py_atomic_store_uint64_release(uint64_t *obj, uint64_t value) +{ +#if defined(_M_X64) || defined(_M_IX86) + *(uint64_t volatile *)obj = value; +#elif defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(unsigned __int64); + __stlr64((unsigned __int64 volatile *)obj, (unsigned __int64)value); +#else +# error "no implementation of _Py_atomic_store_uint64_release" +#endif +} + +static inline uint64_t +_Py_atomic_load_uint64_acquire(const uint64_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(uint64_t volatile *)obj; +#elif defined(_M_ARM64) + _Py_atomic_ASSERT_ARG_TYPE(__int64); + return (uint64_t)__ldar64((unsigned __int64 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_uint64_acquire" +#endif +} + +static inline uint32_t +_Py_atomic_load_uint32_acquire(const uint32_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(uint32_t volatile *)obj; +#elif defined(_M_ARM64) + return (uint32_t)__ldar32((uint32_t volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_uint32_acquire" +#endif +} + +static inline Py_ssize_t +_Py_atomic_load_ssize_acquire(const Py_ssize_t *obj) +{ +#if defined(_M_X64) || defined(_M_IX86) + return *(Py_ssize_t volatile *)obj; +#elif defined(_M_ARM64) + return (Py_ssize_t)__ldar64((unsigned __int64 volatile *)obj); +#else +# error "no implementation of _Py_atomic_load_ssize_acquire" +#endif +} + +// --- _Py_atomic_fence ------------------------------------------------------ + + static inline void +_Py_atomic_fence_seq_cst(void) +{ +#if defined(_M_ARM64) + __dmb(_ARM64_BARRIER_ISH); +#elif defined(_M_X64) + __faststorefence(); +#elif defined(_M_IX86) + _mm_mfence(); +#else +# error "no implementation of _Py_atomic_fence_seq_cst" +#endif +} + + static inline void +_Py_atomic_fence_acquire(void) +{ +#if defined(_M_ARM64) + __dmb(_ARM64_BARRIER_ISHLD); +#elif defined(_M_X64) || defined(_M_IX86) + _ReadBarrier(); +#else +# error "no implementation of _Py_atomic_fence_acquire" +#endif +} + + static inline void +_Py_atomic_fence_release(void) +{ +#if defined(_M_ARM64) + __dmb(_ARM64_BARRIER_ISH); +#elif defined(_M_X64) || defined(_M_IX86) + _ReadWriteBarrier(); +#else +# error "no implementation of _Py_atomic_fence_release" +#endif +} + +#undef _Py_atomic_ASSERT_ARG_TYPE |