/* * atomic.h * Chatter * * Created by Curtis Jones on 2008.11.06. * Copyright 2008 __MyCompanyName__. All rights reserved. * */ #ifndef __ATOMIC_H__ #define __ATOMIC_H__ #ifdef __APPLE__ # include # define ATOMIC_INC32(x) OSAtomicIncrement32(x) # define ATOMIC_DEC32(x) OSAtomicDecrement32(x) # define ATOMIC_INC32_BARRIER(x) OSAtomicIncrement32Barrier(x) # define ATOMIC_DEC32_BARRIER(x) OSAtomicDecrement32Barrier(x) # define ATOMIC_INC64_BARRIER(x) OSAtomicIncrement64Barrier(x) # define ATOMIC_DEC64_BARRIER(x) OSAtomicDecrement64Barrier(x) # define ATOMIC_ENQ(x,y,z) OSAtomicEnqueue(x,y,z) # define ATOMIC_DEQ(x,y) OSAtomicDequeue(x,y) # define ATOMIC_ADD64(x,y) OSAtomicAdd64(x,y) # define ATOMIC_CAS32_BARRIER(x,y,z) OSAtomicCompareAndSwap32Barrier(x,y,z) # define ATOMIC_CAS64_BARRIER(x,y,z) OSAtomicCompareAndSwap64Barrier(x,y,z) # define ATOMIC_CASPTR_BARRIER(x,y,z) OSAtomicCompareAndSwapPtrBarrier(x,y,z) // http://gcc.gnu.org/onlinedocs/gcc-4.4.1/gcc/Atomic-Builtins.html #elif __linux # define ATOMIC_INC32(x) __sync_fetch_and_add(x,1) # define ATOMIC_DEC32(x) __sync_fetch_and_sub(x,1) # define ATOMIC_INC32_BARRIER(x) __sync_fetch_and_add(x,1) # define ATOMIC_DEC32_BARRIER(x) __sync_fetch_and_sub(x,1) # define ATOMIC_INC64_BARRIER(x) __sync_fetch_and_add(x,1) # define ATOMIC_DEC64_BARRIER(x) __sync_fetch_and_sub(x,1) # define ATOMIC_ENQ(x,y,z) # define ATOMIC_DEQ(x,y) # define ATOMIC_ADD64(x,y) __sync_fetch_and_add(y,x) # define ATOMIC_CAS32_BARRIER(x,y,z) __sync_bool_compare_and_swap(z,x,y) # define ATOMIC_CAS64_BARRIER(x,y,z) __sync_bool_compare_and_swap(z,x,y) # define ATOMIC_CASPTR_BARRIER(x,y,z) #else # error "No atomic support for this OS. Sorry." #endif #endif /* __ATOMIC_H__ */