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ft_compat.h
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ft_compat.h
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/* Copyright (c) Meta Platforms, Inc. and affiliates. */
#ifndef FT_COMPAT_H
#define FT_COMPAT_H
#include <Python.h>
#ifndef Py_ATOMIC_H
#define Py_BEGIN_CRITICAL_SECTION(self) {
#define Py_END_CRITICAL_SECTION() }
#define CREATE_PY_ATOMIC_STORE(name, type, suffix) \
static inline void _Py_atomic_store_##name##suffix(type* obj, type value) { \
*obj = value; \
}
CREATE_PY_ATOMIC_STORE(ssize, Py_ssize_t, )
CREATE_PY_ATOMIC_STORE(intptr, intptr_t, )
CREATE_PY_ATOMIC_STORE(uintptr, uintptr_t, )
CREATE_PY_ATOMIC_STORE(uint, unsigned int, )
CREATE_PY_ATOMIC_STORE(ptr, void*, )
CREATE_PY_ATOMIC_STORE(int, int, _relaxed)
CREATE_PY_ATOMIC_STORE(int8, int8_t, _relaxed)
CREATE_PY_ATOMIC_STORE(uint8, uint8_t, _relaxed)
CREATE_PY_ATOMIC_STORE(int16, int16_t, _relaxed)
CREATE_PY_ATOMIC_STORE(uint16, uint16_t, _relaxed)
CREATE_PY_ATOMIC_STORE(int32, int32_t, _relaxed)
CREATE_PY_ATOMIC_STORE(uint32, uint32_t, _relaxed)
CREATE_PY_ATOMIC_STORE(int64, int64_t, _relaxed)
CREATE_PY_ATOMIC_STORE(uint64, uint64_t, _relaxed)
CREATE_PY_ATOMIC_STORE(intptr, intptr_t, _relaxed)
CREATE_PY_ATOMIC_STORE(uintptr, uintptr_t, _relaxed)
CREATE_PY_ATOMIC_STORE(uint, unsigned int, _relaxed)
CREATE_PY_ATOMIC_STORE(ptr, void*, _relaxed)
CREATE_PY_ATOMIC_STORE(ssize, Py_ssize_t, _relaxed)
CREATE_PY_ATOMIC_STORE(ullong, unsigned long long, _relaxed)
CREATE_PY_ATOMIC_STORE(ptr, void*, _release)
CREATE_PY_ATOMIC_STORE(uintptr, uintptr_t, _release)
CREATE_PY_ATOMIC_STORE(ssize, Py_ssize_t, _release)
CREATE_PY_ATOMIC_STORE(int, int, _release)
CREATE_PY_ATOMIC_STORE(uint32, uint32_t, _release)
CREATE_PY_ATOMIC_STORE(uint64, uint64_t, _release)
CREATE_PY_ATOMIC_STORE(int64, int64_t, )
CREATE_PY_ATOMIC_STORE(int, int, )
CREATE_PY_ATOMIC_STORE(int8, int8_t, )
CREATE_PY_ATOMIC_STORE(uint8, uint8_t, )
CREATE_PY_ATOMIC_STORE(int16, int16_t, )
CREATE_PY_ATOMIC_STORE(uint16, uint16_t, )
CREATE_PY_ATOMIC_STORE(int32, int32_t, )
CREATE_PY_ATOMIC_STORE(uint32, uint32_t, )
CREATE_PY_ATOMIC_STORE(uint64, uint64_t, )
#undef CREATE_PY_ATOMIC_STORE
#define CREATE_PY_ATOMIC_EXCHANGE(name, type) \
static inline type _Py_atomic_exchange_##name(type* obj, type value) { \
type old = *obj; \
*obj = value; \
return old; \
}
CREATE_PY_ATOMIC_EXCHANGE(int8, int8_t)
CREATE_PY_ATOMIC_EXCHANGE(uint8, uint8_t)
CREATE_PY_ATOMIC_EXCHANGE(int16, int16_t)
CREATE_PY_ATOMIC_EXCHANGE(uint16, uint16_t)
CREATE_PY_ATOMIC_EXCHANGE(int32, int32_t)
CREATE_PY_ATOMIC_EXCHANGE(uint32, uint32_t)
CREATE_PY_ATOMIC_EXCHANGE(int64, int64_t)
CREATE_PY_ATOMIC_EXCHANGE(uint64, uint64_t)
CREATE_PY_ATOMIC_EXCHANGE(intptr, intptr_t)
CREATE_PY_ATOMIC_EXCHANGE(uintptr, uintptr_t)
CREATE_PY_ATOMIC_EXCHANGE(uint, unsigned int)
CREATE_PY_ATOMIC_EXCHANGE(ssize, Py_ssize_t)
#undef CREATE_PY_ATOMIC_EXCHANGE
// NOLINTNEXTLINE
static inline void* _Py_atomic_exchange_ptr(void* to, void* from) {
void** ref = (void**)to;
void* old = *ref;
*ref = from;
return old;
}
#define CREATE_PY_ATOMIC_COMPARE_EXCHANGE(name, type) \
static inline int _Py_atomic_compare_exchange_##name( \
type* obj, type* expected, type desired) { \
if (*expected == *obj) { \
*obj = desired; \
return 1; \
} \
return 0; \
}
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(int, int)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(int8, int8_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(uint8, uint8_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(int16, int16_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(uint16, uint16_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(int32, int32_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(uint32, uint32_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(int64, int64_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(uint64, uint64_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(intptr, intptr_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(uintptr, uintptr_t)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(uint, unsigned int)
CREATE_PY_ATOMIC_COMPARE_EXCHANGE(ssize, Py_ssize_t)
#undef CREATE_PY_ATOMIC_COMPARE_EXCHANGE
// NOLINTNEXTLINE
static inline int
_Py_atomic_compare_exchange_ptr(void* obj, void* expected, void* desired) {
void** vobj = (void**)obj;
void** vexpected = (void**)expected;
if (*vexpected == *vobj) {
*vobj = desired;
return 1;
}
return 0;
}
// NOLINTNEXTLINE
static inline void _Py_atomic_fence_release(void) {
// NOLINTNEXTLINE
/* noop; */
}
// NOLINTNEXTLINE
static inline void _Py_atomic_fence_seq_cst(void) {
/* noop; */
}
// NOLINTNEXTLINE
static inline void _Py_atomic_fence_acquire(void) {
/* noop; */
}
#define CREATE_PY_ATOMIC_LOAD(name, type, suffix) \
static inline type _Py_atomic_load_##name##suffix(const type* obj) { \
return *obj; \
}
#define CREATE_PY_ATOMIC_LOAD_PTR(name, type, suffix) \
static inline void* _Py_atomic_load_##name##suffix(const type* obj) { \
return *(void**)obj; \
}
CREATE_PY_ATOMIC_LOAD(int, int, )
CREATE_PY_ATOMIC_LOAD(int8, int8_t, )
CREATE_PY_ATOMIC_LOAD(uint8, uint8_t, )
CREATE_PY_ATOMIC_LOAD(int16, int16_t, )
CREATE_PY_ATOMIC_LOAD(uint16, uint16_t, )
CREATE_PY_ATOMIC_LOAD(int32, int32_t, )
CREATE_PY_ATOMIC_LOAD(uint32, uint32_t, )
CREATE_PY_ATOMIC_LOAD(int64, int64_t, )
CREATE_PY_ATOMIC_LOAD(uint64, uint64_t, )
CREATE_PY_ATOMIC_LOAD(intptr, intptr_t, )
CREATE_PY_ATOMIC_LOAD(uintptr, uintptr_t, )
CREATE_PY_ATOMIC_LOAD(uint, unsigned int, )
CREATE_PY_ATOMIC_LOAD(ssize, Py_ssize_t, )
CREATE_PY_ATOMIC_LOAD_PTR(ptr, void, )
CREATE_PY_ATOMIC_LOAD_PTR(ptr, void, _relaxed)
CREATE_PY_ATOMIC_LOAD_PTR(ptr, void, _acquire)
CREATE_PY_ATOMIC_LOAD(int, int, _relaxed)
CREATE_PY_ATOMIC_LOAD(int8, int8_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(uint8, uint8_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(int16, int16_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(uint16, uint16_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(int32, int32_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(uint32, uint32_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(int64, int64_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(uint64, uint64_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(intptr, intptr_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(uintptr, uintptr_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(uint, unsigned int, _relaxed)
CREATE_PY_ATOMIC_LOAD(ssize, Py_ssize_t, _relaxed)
CREATE_PY_ATOMIC_LOAD(ullong, unsigned long long, _relaxed)
CREATE_PY_ATOMIC_LOAD(int, int, _acquire)
CREATE_PY_ATOMIC_LOAD(int8, int8_t, _acquire)
CREATE_PY_ATOMIC_LOAD(uint8, uint8_t, _acquire)
CREATE_PY_ATOMIC_LOAD(int16, int16_t, _acquire)
CREATE_PY_ATOMIC_LOAD(uint16, uint16_t, _acquire)
CREATE_PY_ATOMIC_LOAD(int32, int32_t, _acquire)
CREATE_PY_ATOMIC_LOAD(uint32, uint32_t, _acquire)
CREATE_PY_ATOMIC_LOAD(int64, int64_t, _acquire)
CREATE_PY_ATOMIC_LOAD(uint64, uint64_t, _acquire)
CREATE_PY_ATOMIC_LOAD(intptr, intptr_t, _acquire)
CREATE_PY_ATOMIC_LOAD(uintptr, uintptr_t, _acquire)
CREATE_PY_ATOMIC_LOAD(uint, unsigned int, _acquire)
CREATE_PY_ATOMIC_LOAD(ssize, Py_ssize_t, _acquire)
#undef CREATE_PY_ATOMIC_LOAD
#undef CREATE_PY_ATOMIC_LOAD_PTR
#define CREATE_PY_ATOMIC_ADD(name, type) \
static inline type _Py_atomic_add_##name(type* obj, type value) { \
type old = *obj; \
*obj += value; \
return old; \
}
CREATE_PY_ATOMIC_ADD(int, int)
CREATE_PY_ATOMIC_ADD(int8, int8_t)
CREATE_PY_ATOMIC_ADD(int16, int16_t)
CREATE_PY_ATOMIC_ADD(int32, int32_t)
CREATE_PY_ATOMIC_ADD(int64, int64_t)
CREATE_PY_ATOMIC_ADD(intptr, intptr_t)
CREATE_PY_ATOMIC_ADD(uint, unsigned int)
CREATE_PY_ATOMIC_ADD(uint8, uint8_t)
CREATE_PY_ATOMIC_ADD(uint16, uint16_t)
CREATE_PY_ATOMIC_ADD(uint32, uint32_t)
CREATE_PY_ATOMIC_ADD(uint64, uint64_t)
CREATE_PY_ATOMIC_ADD(uintptr, uintptr_t)
CREATE_PY_ATOMIC_ADD(ssize, Py_ssize_t)
#undef CREATE_PY_ATOMIC_ADD
// New
#define CREATE_PY_ATOMIC_AND(name, type) \
static inline type _Py_atomic_and_##name(type* obj, type value) { \
type old = *obj; \
*obj &= value; \
return old; \
}
CREATE_PY_ATOMIC_AND(uint8, uint8_t)
CREATE_PY_ATOMIC_AND(uint16, uint16_t)
CREATE_PY_ATOMIC_AND(uint32, uint32_t)
CREATE_PY_ATOMIC_AND(uint64, uint64_t)
CREATE_PY_ATOMIC_AND(uintptr, uintptr_t)
#undef CREATE_PY_ATOMIC_AND
#define CREATE_PY_ATOMIC_OR(name, type) \
static inline type _Py_atomic_or_##name(type* obj, type value) { \
type old = *obj; \
*obj |= value; \
return old; \
}
CREATE_PY_ATOMIC_OR(uint8, uint8_t)
CREATE_PY_ATOMIC_OR(uint16, uint16_t)
CREATE_PY_ATOMIC_OR(uint32, uint32_t)
CREATE_PY_ATOMIC_OR(uint64, uint64_t)
CREATE_PY_ATOMIC_OR(uintptr, uintptr_t)
#undef CREATE_PY_ATOMIC_OR
#endif /* Py_ATOMIC_H */
#endif /* FT_COMPAT_H */