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use __sync_swap if we have it

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Love Hornquist Astrand
2011-09-09 10:03:28 +02:00
parent f1a6f9a9fa
commit c63d6e516f
1 changed files with 8 additions and 0 deletions
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8
base/baselocl.h
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@@ -68,7 +68,15 @@
#define heim_base_atomic_type unsigned int #define heim_base_atomic_type unsigned int
#define heim_base_atomic_max UINT_MAX #define heim_base_atomic_max UINT_MAX
#ifndef __has_builtin
#define __has_builtin(x) 0
#endif
#if __has_builtin(__sync_swap)
#define heim_base_exchange_pointer(t,v) __sync_swap((t), (v))
#else
#define heim_base_exchange_pointer(t,v) __sync_lock_test_and_set((t), (v)) #define heim_base_exchange_pointer(t,v) __sync_lock_test_and_set((t), (v))
#endif
#elif defined(_WIN32) #elif defined(_WIN32)