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replace windows atomic operations with stdatomic #141

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Merged
merged 1 commit into from
Jun 16, 2022
Merged

replace windows atomic operations with stdatomic #141

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15 changes: 15 additions & 0 deletions src/windows/platform.h
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,20 @@
# pragma warning( disable : 4996 )
#endif

#ifndef _MSC_VER
#include <stdatomic.h>
/*
* C11 atomic operations
*/
#define atomic_inc(p) (atomic_fetch_add((p), 1) + 1)
#define atomic_dec(p) (atomic_fetch_sub((p), 1) - 1)

/* We use compound literals here to stop the 'expected' values from being overwritten */
#define atomic_cas(p, oval, nval) atomic_compare_exchange_strong(p, &(__typeof__(oval)){ oval }, nval)
#define atomic_ptr_cas(p, oval, nval) atomic_compare_exchange_strong(p, (&(uintptr_t){ (uintptr_t)oval }), (uintptr_t)nval)
#define atomic_ptr_swap(p, nval) atomic_exchange(p, (uintptr_t)nval)
#define atomic_ptr_load(p) atomic_load(p)
#else
/*
* Atomic integer operations
*/
Expand All @@ -54,6 +68,7 @@
#define atomic_ptr_swap(p, oval) InterlockedExchangePointer(p, oval)
#define atomic_ptr_load(p) (*p)

#endif

/*
* Additional members of struct kqueue
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