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sync.stdatomic: add atomic types (#24561)
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kbkpbot
GitHub
parent
f19e8a7fa3
commit
ed7a8a34f1
190
thirdparty/stdatomic/win/atomic.h
vendored
190
thirdparty/stdatomic/win/atomic.h
vendored
@ -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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@ -77,6 +77,14 @@ fn C.atomic_exchange_ptr(voidptr, voidptr) voidptr
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fn C.atomic_fetch_add_ptr(voidptr, voidptr) voidptr
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fn C.atomic_fetch_sub_ptr(voidptr, voidptr) voidptr
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fn C.atomic_load_byte(voidptr) u8
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fn C.atomic_store_byte(voidptr, u8)
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fn C.atomic_compare_exchange_weak_byte(voidptr, voidptr, u8) bool
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fn C.atomic_compare_exchange_strong_byte(voidptr, voidptr, u8) bool
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fn C.atomic_exchange_byte(voidptr, u8) u8
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fn C.atomic_fetch_add_byte(voidptr, u8) u8
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fn C.atomic_fetch_sub_byte(voidptr, u8) u8
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fn C.atomic_load_u16(voidptr) u16
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fn C.atomic_store_u16(voidptr, u16)
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fn C.atomic_compare_exchange_weak_u16(voidptr, voidptr, u16) bool
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@ -60,3 +60,144 @@ pub fn store_i64(ptr &i64, val i64) {
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pub fn load_i64(ptr &i64) i64 {
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return i64(C.atomic_load_u64(voidptr(ptr)))
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}
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@[heap]
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pub struct AtomicVal[T] {
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val T
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}
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// new_atomic creates a new atomic value of `T` type
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@[inline]
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pub fn new_atomic[T](val T) &AtomicVal[T] {
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$if T is $int || T is bool {
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return &AtomicVal[T]{
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val: val
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}
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} $else {
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panic('atomic: only support number and bool types')
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}
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return unsafe { nil }
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}
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// load returns current value of the atomic value
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@[inline]
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pub fn (mut a AtomicVal[T]) load() T {
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$if T is bool {
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return C.atomic_load_byte(voidptr(&a.val)) != 0
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} $else $if T is u8 || T is i8 {
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return T(C.atomic_load_byte(voidptr(&a.val)))
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} $else $if T is u16 || T is i16 {
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return T(C.atomic_load_u16(voidptr(&a.val)))
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} $else $if T is u32 || T is i32 {
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return T(C.atomic_load_u32(voidptr(&a.val)))
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} $else $if T is u64 || T is i64 {
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return T(C.atomic_load_u64(voidptr(&a.val)))
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} $else $if T is int {
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// TODO: remove this test or a compile time support $if sizeof() ==
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if sizeof(int) == 4 {
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return int(C.atomic_load_u32(voidptr(&a.val)))
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} else {
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return int(C.atomic_load_u64(voidptr(&a.val)))
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}
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} $else $if T is isize || T is usize {
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// TODO: remove this test or a compile time support $if sizeof() ==
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if sizeof(isize) == 4 {
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return T(C.atomic_load_u32(voidptr(&a.val)))
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} else {
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return T(C.atomic_load_u64(voidptr(&a.val)))
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}
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}
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return a.val
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}
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// store updates the atomic value with `val`
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@[inline]
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pub fn (mut a AtomicVal[T]) store(val T) {
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$if T is bool {
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C.atomic_store_byte(voidptr(&a.val), val)
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} $else $if T is u8 || T is i8 {
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C.atomic_store_byte(voidptr(&a.val), val)
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} $else $if T is u16 || T is i16 {
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C.atomic_store_u16(voidptr(&a.val), val)
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} $else $if T is u32 || T is i32 {
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C.atomic_store_u32(voidptr(&a.val), val)
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} $else $if T is u64 || T is i64 {
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C.atomic_store_u64(voidptr(&a.val), val)
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} $else $if T is int {
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// TODO: remove this test or a compile time support $if sizeof() ==
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if sizeof(int) == 4 {
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C.atomic_store_u32(voidptr(&a.val), val)
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} else {
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C.atomic_store_u64(voidptr(&a.val), val)
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}
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} $else $if T is isize || T is usize {
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// TODO: remove this test or a compile time support $if sizeof() ==
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if sizeof(isize) == 4 {
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C.atomic_store_u32(voidptr(&a.val), val)
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} else {
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C.atomic_store_u64(voidptr(&a.val), val)
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}
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}
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}
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// add adds the atomic value with `delta`
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@[inline]
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pub fn (mut a AtomicVal[T]) add(delta T) T {
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$if T is bool {
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panic('atomic: can not add() a bool type')
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} $else $if T is u8 || T is i8 {
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C.atomic_fetch_add_byte(voidptr(&a.val), delta)
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} $else $if T is u16 || T is i16 {
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C.atomic_fetch_add_u16(voidptr(&a.val), delta)
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} $else $if T is u32 || T is i32 {
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C.atomic_fetch_add_u32(voidptr(&a.val), delta)
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} $else $if T is u64 || T is i64 {
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C.atomic_fetch_add_u64(voidptr(&a.val), delta)
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} $else $if T is int {
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// TODO: remove this test or a compile time support $if sizeof() ==
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if sizeof(int) == 4 {
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C.atomic_fetch_add_u32(voidptr(&a.val), delta)
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} else {
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C.atomic_fetch_add_u64(voidptr(&a.val), delta)
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}
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} $else $if T is isize || T is usize {
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// TODO: remove this test or a compile time support $if sizeof() ==
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if sizeof(isize) == 4 {
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C.atomic_fetch_add_u32(voidptr(&a.val), delta)
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} else {
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C.atomic_fetch_add_u64(voidptr(&a.val), delta)
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}
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}
|
||||
return T(a.val)
|
||||
}
|
||||
|
||||
// sub subs the atomic value with `delta`
|
||||
@[inline]
|
||||
pub fn (mut a AtomicVal[T]) sub(delta T) T {
|
||||
$if T is bool {
|
||||
panic('atomic: can not sub() a bool type')
|
||||
} $else $if T is u8 || T is i8 {
|
||||
C.atomic_fetch_sub_byte(voidptr(&a.val), delta)
|
||||
} $else $if T is u16 || T is i16 {
|
||||
C.atomic_fetch_sub_u16(voidptr(&a.val), delta)
|
||||
} $else $if T is u32 || T is i32 {
|
||||
C.atomic_fetch_sub_u32(voidptr(&a.val), delta)
|
||||
} $else $if T is u64 || T is i64 {
|
||||
C.atomic_fetch_sub_u64(voidptr(&a.val), delta)
|
||||
} $else $if T is int {
|
||||
// TODO: remove this test or a compile time support $if sizeof() ==
|
||||
if sizeof(int) == 4 {
|
||||
C.atomic_fetch_sub_u32(voidptr(&a.val), delta)
|
||||
} else {
|
||||
C.atomic_fetch_sub_u64(voidptr(&a.val), delta)
|
||||
}
|
||||
} $else $if T is isize || T is usize {
|
||||
// TODO: remove this test or a compile time support $if sizeof() ==
|
||||
if sizeof(isize) == 4 {
|
||||
C.atomic_fetch_sub_u32(voidptr(&a.val), delta)
|
||||
} else {
|
||||
C.atomic_fetch_sub_u64(voidptr(&a.val), delta)
|
||||
}
|
||||
}
|
||||
return T(a.val)
|
||||
}
|
||||
|
||||
@ -93,3 +93,99 @@ fn count_one_cycle_without_sync(mut counter Counter, mut group sync.WaitGroup) {
|
||||
}
|
||||
group.done()
|
||||
}
|
||||
|
||||
fn test_atomic_vals() {
|
||||
mut v_bool := stdatomic.new_atomic(false)
|
||||
v_bool.store(true)
|
||||
assert v_bool.load() == true
|
||||
v_bool.store(false)
|
||||
assert v_bool.load() == false
|
||||
|
||||
mut v_i8 := stdatomic.new_atomic(i8(-33))
|
||||
v_i8.store(-34)
|
||||
assert v_i8.load() == -34
|
||||
v_i8.add(10)
|
||||
assert v_i8.load() == -24
|
||||
v_i8.sub(7)
|
||||
assert v_i8.load() == -31
|
||||
|
||||
mut v_u8 := stdatomic.new_atomic(u8(33))
|
||||
v_u8.store(34)
|
||||
assert v_u8.load() == 34
|
||||
v_u8.add(10)
|
||||
assert v_u8.load() == 44
|
||||
v_u8.sub(7)
|
||||
assert v_u8.load() == 37
|
||||
|
||||
mut v_i16 := stdatomic.new_atomic(i16(-333))
|
||||
v_i16.store(-334)
|
||||
assert v_i16.load() == -334
|
||||
v_i16.add(10)
|
||||
assert v_i16.load() == -324
|
||||
v_i16.sub(7)
|
||||
assert v_i16.load() == -331
|
||||
|
||||
mut v_u16 := stdatomic.new_atomic(u16(333))
|
||||
v_u16.store(334)
|
||||
assert v_u16.load() == 334
|
||||
v_u16.add(10)
|
||||
assert v_u16.load() == 344
|
||||
v_u16.sub(7)
|
||||
assert v_u16.load() == 337
|
||||
|
||||
mut v_i32 := stdatomic.new_atomic(i32(-3333))
|
||||
v_i32.store(-3334)
|
||||
assert v_i32.load() == -3334
|
||||
v_i32.add(10)
|
||||
assert v_i32.load() == -3324
|
||||
v_i32.sub(7)
|
||||
assert v_i32.load() == -3331
|
||||
|
||||
mut v_u32 := stdatomic.new_atomic(u32(3333))
|
||||
v_u32.store(3334)
|
||||
assert v_u32.load() == 3334
|
||||
v_u32.add(10)
|
||||
assert v_u32.load() == 3344
|
||||
v_u32.sub(7)
|
||||
assert v_u32.load() == 3337
|
||||
|
||||
mut v_i64 := stdatomic.new_atomic(i64(-33333))
|
||||
v_i64.store(-33334)
|
||||
assert v_i64.load() == -33334
|
||||
v_i64.add(10)
|
||||
assert v_i64.load() == -33324
|
||||
v_i64.sub(7)
|
||||
assert v_i64.load() == -33331
|
||||
|
||||
mut v_u64 := stdatomic.new_atomic(u64(33333))
|
||||
v_u64.store(33334)
|
||||
assert v_u64.load() == 33334
|
||||
v_u64.add(10)
|
||||
assert v_u64.load() == 33344
|
||||
v_u64.sub(7)
|
||||
assert v_u64.load() == 33337
|
||||
|
||||
mut v_int := stdatomic.new_atomic(int(-44))
|
||||
v_int.store(-45)
|
||||
assert v_int.load() == -45
|
||||
v_int.add(10)
|
||||
assert v_int.load() == -35
|
||||
v_int.sub(7)
|
||||
assert v_int.load() == -42
|
||||
|
||||
mut v_isize := stdatomic.new_atomic(isize(-55))
|
||||
v_isize.store(-56)
|
||||
assert v_isize.load() == -56
|
||||
v_isize.add(10)
|
||||
assert v_isize.load() == -46
|
||||
v_isize.sub(7)
|
||||
assert v_isize.load() == -53
|
||||
|
||||
mut v_usize := stdatomic.new_atomic(usize(55))
|
||||
v_usize.store(56)
|
||||
assert v_usize.load() == 56
|
||||
v_usize.add(10)
|
||||
assert v_usize.load() == 66
|
||||
v_usize.sub(7)
|
||||
assert v_usize.load() == 59
|
||||
}
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user