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atomic: MSVC compatible equivalents to some functions

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Lioncash 2018-02-27 10:43:00 -05:00
parent c837d76a86
commit a59eef391e
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1 changed files with 20 additions and 4 deletions
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24
qemu/include/qemu/atomic.h
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@ -318,10 +318,23 @@ void _ReadWriteBarrier(void);
/* Provide shorter names for GCC atomic builtins. */
#ifdef _MSC_VER
// these return the new value (so we make it return the previous value)
#define atomic_fetch_inc(ptr) ((InterlockedIncrement(ptr))-1)
#define atomic_fetch_dec(ptr) ((InterlockedDecrement(ptr))+1)
#define atomic_fetch_add(ptr, n) ((InterlockedAdd(ptr, n))-n)
#define atomic_fetch_sub(ptr, n) ((InterlockedAdd(ptr, -n))+n)
#define atomic_fetch_inc(ptr) ((InterlockedIncrement(ptr))-1)
#define atomic_fetch_dec(ptr) ((InterlockedDecrement(ptr))+1)
#define atomic_fetch_add(ptr, n) ((InterlockedAdd(ptr, n))-n)
#define atomic_fetch_sub(ptr, n) ((InterlockedAdd(ptr, -n))+n)
#define atomic_fetch_and(ptr, n) ((InterlockedAnd(ptr, n)))
#define atomic_fetch_or(ptr, n) ((InterlockedOr(ptr, n)))
#define atomic_fetch_xor(ptr, n) ((InterlockedXor(ptr, n)))
#define atomic_inc_fetch(ptr) (InterlockedIncrement((long*)(ptr)))
#define atomic_dec_fetch(ptr) (InterlockedDecrement((long*)(ptr)))
#define atomic_add_fetch(ptr, n) (InterlockedExchangeAdd((long*)ptr, n) + n)
#define atomic_sub_fetch(ptr, n) (InterlockedExchangeAdd((long*)ptr, n) - n)
#define atomic_and_fetch(ptr, n) (InterlockedAnd((long*)ptr, n) & n)
#define atomic_or_fetch(ptr, n) (InterlockedOr((long*)ptr, n) | n)
#define atomic_xor_fetch(ptr, n) (InterlockedXor((long*)ptr, n) ^ n)
#define atomic_cmpxchg(ptr, old, new) ((InterlockedCompareExchange(ptr, old, new)))
#else
// these return the previous value
#define atomic_fetch_inc(ptr) __sync_fetch_and_add(ptr, 1)
@ -349,6 +362,9 @@ void _ReadWriteBarrier(void);
#define atomic_dec(ptr) ((void) InterlockedDecrement(ptr))
#define atomic_add(ptr, n) ((void) InterlockedAdd(ptr, n))
#define atomic_sub(ptr, n) ((void) InterlockedAdd(ptr, -n))
#define atomic_and(ptr, n) ((void) InterlockedAnd(ptr, n))
#define atomic_or(ptr, n) ((void) InterlockedOr(ptr, n))
#define atomic_xor(ptr, n) ((void) InterlockedXor(ptr, n))
#else
#define atomic_inc(ptr) ((void) __sync_fetch_and_add(ptr, 1))
#define atomic_dec(ptr) ((void) __sync_fetch_and_add(ptr, -1))