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Fix missing OSAtomicCompareAndSwapPtrBarrier() on Mac OS X 10.4 

based on hb-atomic-private.hh in harfbuzz
This commit is contained in:
Akira TAGOH 2013-05-16 13:41:32 +09:00
parent 93137252cf
commit 0f9aa8759d
1 changed files with 13 additions and 1 deletions
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14
src/fcatomic.h
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@ -70,13 +70,25 @@ typedef LONG fc_atomic_int_t;
#elif !defined(FC_NO_MT) && defined(__APPLE__)
#include <libkern/OSAtomic.h>
#ifdef __MAC_OS_X_MIN_REQUIRED
#include <AvailabilityMacros.h>
#elif defined(__IPHONE_OS_MIN_REQUIRED)
#include <Availability.h>
#endif
typedef int fc_atomic_int_t;
#define fc_atomic_int_add(AI, V) (OSAtomicAdd32Barrier ((V), &(AI)) - (V))
#define fc_atomic_ptr_get(P) (OSMemoryBarrier (), (void *) *(P))
#if (MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_4 || __IPHONE_VERSION_MIN_REQUIRED >= 20100)
#define fc_atomic_ptr_cmpexch(P,O,N) OSAtomicCompareAndSwapPtrBarrier ((void *) (O), (void *) (N), (void **) (P))
#else
#if __ppc64__ || __x86_64__
#define fc_atomic_ptr_cmpexch(P,O,N) OSAtomicCompareAndSwap64Barrier ((int64_t) (O), (int64_t) (N), (int64_t*) (P))
#else
#define fc_atomic_ptr_cmpexch(P,O,N) OSAtomicCompareAndSwap32Barrier ((int32_t) (O), (int32_t) (N), (int32_t*) (P))
#endif
#endif
#elif !defined(FC_NO_MT) && defined(HAVE_INTEL_ATOMIC_PRIMITIVES)