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sync.stdatomic: add atomic types (#24561)
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kbkpbot
GitHub
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commit
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4 changed files with 398 additions and 37 deletions
190
thirdparty/stdatomic/win/atomic.h
vendored
190
thirdparty/stdatomic/win/atomic.h
vendored
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@ -40,7 +40,9 @@
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#define kill_dependency(y) ((void)0)
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#define atomic_thread_fence(order) \
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MemoryBarrier();
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((order) == memory_order_seq_cst ? MemoryBarrier() : \
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(order) == memory_order_release ? WriteBarrier() : \
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(order) == memory_order_acquire ? ReadBarrier() : (void)0);
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#define atomic_signal_fence(order) \
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((void)0)
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@ -48,18 +50,18 @@
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#define atomic_is_lock_free(obj) 0
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typedef intptr_t atomic_flag;
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typedef intptr_t atomic_bool;
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typedef intptr_t atomic_char;
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typedef intptr_t atomic_schar;
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typedef intptr_t atomic_uchar;
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typedef intptr_t atomic_short;
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typedef intptr_t atomic_ushort;
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typedef intptr_t atomic_int;
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typedef intptr_t atomic_uint;
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typedef intptr_t atomic_long;
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typedef intptr_t atomic_ulong;
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typedef intptr_t atomic_llong;
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typedef intptr_t atomic_ullong;
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typedef _Atomic bool atomic_bool;
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typedef _Atomic char atomic_char;
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typedef _Atomic signed char atomic_schar;
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typedef _Atomic unsigned char atomic_uchar;
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typedef _Atomic short atomic_short;
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typedef _Atomic unsigned short atomic_ushort;
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typedef _Atomic int atomic_int;
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typedef _Atomic unsigned int atomic_uint;
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typedef _Atomic long atomic_long;
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typedef _Atomic unsigned long atomic_ulong;
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typedef _Atomic long long atomic_llong;
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typedef _Atomic unsigned long long atomic_ullong;
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typedef intptr_t atomic_wchar_t;
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typedef intptr_t atomic_int_least8_t;
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typedef intptr_t atomic_uint_least8_t;
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@ -77,9 +79,9 @@ typedef intptr_t atomic_int_fast32_t;
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typedef intptr_t atomic_uint_fast32_t;
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typedef intptr_t atomic_int_fast64_t;
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typedef intptr_t atomic_uint_fast64_t;
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typedef intptr_t atomic_intptr_t;
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typedef intptr_t atomic_uintptr_t;
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typedef intptr_t atomic_size_t;
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typedef _Atomic intptr_t atomic_intptr_t;
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typedef _Atomic uintptr_t atomic_uintptr_t;
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typedef _Atomic size_t atomic_size_t;
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typedef intptr_t atomic_ptrdiff_t;
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typedef intptr_t atomic_intmax_t;
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typedef intptr_t atomic_uintmax_t;
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@ -90,6 +92,7 @@ typedef intptr_t atomic_uintmax_t;
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fake it (works the same) with InterlockedCompareExchange64 until it
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succeeds
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*/
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__CRT_INLINE LONGLONG _InterlockedExchangeAdd64(LONGLONG volatile *Addend, LONGLONG Value)
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{
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LONGLONG Old;
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@ -110,16 +113,6 @@ __CRT_INLINE LONG _InterlockedExchangeAdd(LONG volatile *Addend, LONG Value)
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return Old;
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}
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__CRT_INLINE SHORT _InterlockedExchangeAdd16(SHORT volatile *Addend, SHORT Value)
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{
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SHORT Old;
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do
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{
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Old = *Addend;
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} while (InterlockedCompareExchange16(Addend, Old + Value, Old) != Old);
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return Old;
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}
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#define InterlockedIncrement64 _InterlockedExchangeAdd64
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#endif
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@ -127,6 +120,7 @@ __CRT_INLINE SHORT _InterlockedExchangeAdd16(SHORT volatile *Addend, SHORT Value
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#define atomic_store(object, desired) \
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do \
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{ \
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MemoryBarrier(); \
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*(object) = (desired); \
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MemoryBarrier(); \
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} while (0)
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@ -146,7 +140,7 @@ __CRT_INLINE SHORT _InterlockedExchangeAdd16(SHORT volatile *Addend, SHORT Value
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#define atomic_exchange_explicit(object, desired, order) \
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atomic_exchange(object, desired)
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static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected,
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static inline int atomic_compare_exchange_strong(intptr_t volatile *object, intptr_t volatile *expected,
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intptr_t desired)
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{
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intptr_t old = *expected;
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@ -210,21 +204,22 @@ static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *exp
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#define atomic_fetch_or_ptr atomic_fetch_or
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#define atomic_fetch_xor_ptr atomic_fetch_xor
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static inline void atomic_store_u64(unsigned long long* object, unsigned long long desired) {
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static inline void atomic_store_u64(unsigned long long volatile * object, unsigned long long desired) {
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do {
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MemoryBarrier();
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*(object) = (desired);
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MemoryBarrier();
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} while (0);
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}
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static inline unsigned long long atomic_load_u64(unsigned long long* object) {
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static inline unsigned long long atomic_load_u64(unsigned long long volatile * object) {
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return (MemoryBarrier(), *(object));
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}
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#define atomic_exchange_u64(object, desired) \
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InterlockedExchange64(object, desired)
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static inline int atomic_compare_exchange_strong_u64(unsigned long long* object, unsigned long long* expected,
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static inline int atomic_compare_exchange_strong_u64(unsigned long long volatile * object, unsigned long long volatile * expected,
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unsigned long long desired)
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{
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unsigned long long old = *expected;
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@ -252,21 +247,22 @@ static inline int atomic_compare_exchange_strong_u64(unsigned long long* object,
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static inline void atomic_store_u32(unsigned* object, unsigned desired) {
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static inline void atomic_store_u32(unsigned volatile * object, unsigned desired) {
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do {
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MemoryBarrier();
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*(object) = (desired);
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MemoryBarrier();
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} while (0);
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}
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static inline unsigned atomic_load_u32(unsigned* object) {
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static inline unsigned atomic_load_u32(unsigned volatile * object) {
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return (MemoryBarrier(), *(object));
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}
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#define atomic_exchange_u32(object, desired) \
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InterlockedExchange(object, desired)
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static inline int atomic_compare_exchange_strong_u32(unsigned* object, unsigned* expected,
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static inline int atomic_compare_exchange_strong_u32(unsigned volatile * object, unsigned volatile * expected,
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unsigned desired)
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{
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unsigned old = *expected;
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@ -292,23 +288,40 @@ static inline int atomic_compare_exchange_strong_u32(unsigned* object, unsigned*
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#define atomic_fetch_and_u32(object, operand) \
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InterlockedAnd(object, operand)
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#ifdef _MSC_VER
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#define InterlockedExchangeAdd16 _InterlockedExchangeAdd16
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static inline void atomic_store_u16(unsigned short* object, unsigned short desired) {
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#else
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#define InterlockedExchangeAdd16 ManualInterlockedExchangeAdd16
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static inline unsigned short ManualInterlockedExchangeAdd16(unsigned short volatile* Addend, unsigned short Value) {
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__asm__ __volatile__ (
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"lock xaddw %w[value], %[mem]"
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: [mem] "+m" (*Addend), [value] "+r" (Value)
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: : "memory"
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);
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return Value;
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}
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#endif
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static inline void atomic_store_u16(unsigned short volatile * object, unsigned short desired) {
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do {
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MemoryBarrier();
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*(object) = (desired);
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MemoryBarrier();
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} while (0);
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}
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static inline unsigned short atomic_load_u16(unsigned short* object) {
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static inline unsigned short atomic_load_u16(unsigned short volatile * object) {
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return (MemoryBarrier(), *(object));
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}
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#define atomic_exchange_u16(object, desired) \
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InterlockedExchange16(object, desired)
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static inline int atomic_compare_exchange_strong_u16(unsigned short* object, unsigned short* expected,
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static inline int atomic_compare_exchange_strong_u16(unsigned short volatile * object, unsigned short volatile * expected,
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unsigned short desired)
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{
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unsigned short old = *expected;
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@ -335,7 +348,6 @@ static inline int atomic_compare_exchange_strong_u16(unsigned short* object, uns
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InterlockedAnd16(object, operand)
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#define atomic_fetch_add_explicit(object, operand, order) \
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atomic_fetch_add(object, operand)
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@ -363,4 +375,108 @@ static inline int atomic_compare_exchange_strong_u16(unsigned short* object, uns
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#define atomic_flag_clear_explicit(object, order) \
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atomic_flag_clear(object)
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#ifdef _MSC_VER
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#define InterlockedCompareExchange8 _InterlockedCompareExchange8
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#define InterlockedExchangeAdd8 _InterlockedExchangeAdd8
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#define InterlockedOr8 _InterlockedOr8
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#define InterlockedXor8 _InterlockedXor8
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#define InterlockedAnd8 _InterlockedAnd8
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#else
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#define InterlockedCompareExchange8 ManualInterlockedCompareExchange8
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#define InterlockedExchangeAdd8 ManualInterlockedExchangeAdd8
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#define InterlockedOr8 ManualInterlockedOr8
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#define InterlockedXor8 ManualInterlockedXor8
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#define InterlockedAnd8 ManualInterlockedAnd8
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static inline unsigned char ManualInterlockedCompareExchange8(unsigned char volatile * dest, unsigned char exchange, unsigned char comparand) {
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unsigned char result;
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__asm__ volatile (
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"lock cmpxchgb %[exchange], %[dest]"
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: "=a" (result), [dest] "+m" (*dest)
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: [exchange] "q" (exchange), "a" (comparand)
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: "memory"
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);
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return result;
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}
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static inline unsigned char ManualInterlockedExchangeAdd8(unsigned char volatile * dest, unsigned char value) {
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unsigned char oldValue;
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unsigned char newValue;
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do {
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oldValue = *dest;
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} while (ManualInterlockedCompareExchange8(dest, oldValue + value, oldValue) != oldValue);
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return oldValue;
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}
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static inline unsigned char ManualInterlockedOr8(unsigned char volatile * dest, unsigned char value) {
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unsigned char oldValue;
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do {
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oldValue = *dest;
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} while (ManualInterlockedCompareExchange8(dest, oldValue | value, oldValue) != oldValue);
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return oldValue;
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}
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static inline unsigned char ManualInterlockedXor8(unsigned char volatile * dest, unsigned char value) {
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unsigned char oldValue;
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do {
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oldValue = *dest;
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} while (ManualInterlockedCompareExchange8(dest, oldValue ^ value, oldValue) != oldValue);
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return oldValue;
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}
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static inline unsigned char ManualInterlockedAnd8(unsigned char volatile * dest, unsigned char value) {
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unsigned char oldValue;
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do {
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oldValue = *dest;
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} while (ManualInterlockedCompareExchange8(dest, oldValue & value, oldValue) != oldValue);
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return oldValue;
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}
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#endif
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static inline void atomic_store_byte(unsigned char volatile * object, unsigned char desired) {
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do {
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MemoryBarrier();
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*(object) = (desired);
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MemoryBarrier();
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} while (0);
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}
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static inline unsigned char atomic_load_byte(unsigned char volatile * object) {
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return (MemoryBarrier(), *(object));
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}
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#define atomic_exchange_byte(object, desired) \
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InterlockedExchange8(object, desired)
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static inline int atomic_compare_exchange_strong_byte(unsigned char volatile * object, unsigned char volatile * expected,
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unsigned char desired)
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{
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unsigned char old = *expected;
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*expected = InterlockedCompareExchange8(object, desired, old);
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return *expected == old;
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}
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#define atomic_compare_exchange_weak_byte(object, expected, desired) \
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atomic_compare_exchange_strong_byte(object, expected, desired)
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#define atomic_fetch_add_byte(object, operand) \
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InterlockedExchangeAdd8(object, operand)
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#define atomic_fetch_sub_byte(object, operand) \
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InterlockedExchangeAdd8(object, -(operand))
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#define atomic_fetch_or_byte(object, operand) \
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InterlockedOr8(object, operand)
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#define atomic_fetch_xor_byte(object, operand) \
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InterlockedXor8(object, operand)
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#define atomic_fetch_and_byte(object, operand) \
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InterlockedAnd8(object, operand)
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#endif /* COMPAT_ATOMICS_WIN32_STDATOMIC_H */
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