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* Q Public License 1.0, which can be found in the file LICENSE included in
* the packaging of this file.
*/
#import "objfw-defs.h"
#if !defined(OF_THREADS)
# define of_atomic_inc32(p) ++(*p)
# define of_atomic_dec32(p) --(*p)
# define of_atomic_cmpswap32(p, o, n) (*p == o ? ((*p = n) ? 1 : 1) : 0)
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
# define of_atomic_inc32(p) __sync_add_and_fetch(p, 1)
# define of_atomic_dec32(p) __sync_sub_and_fetch(p, 1)
# define of_atomic_cmpswap32(p, o, n) __sync_bool_compare_and_swap(p, o, n)
#elif defined(OF_HAVE_LIBKERN_OSATOMIC_H)
# include <libkern/OSAtomic.h>
# define of_atomic_inc32(p) OSAtomicIncrement32Barrier((int32_t*)(p))
# define of_atomic_dec32(p) OSAtomicDecrement32Barrier((int32_t*)(p))
# define of_atomic_cmpswap32(p, o, n) \
OSAtomicCompareAndSwap32Barrier(o, n, (int32_t*)p)
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* Q Public License 1.0, which can be found in the file LICENSE included in
* the packaging of this file.
*/
#import "objfw-defs.h"
#if !defined(OF_THREADS)
# define of_atomic_add32(p, i) (*p += i)
# define of_atomic_sub32(p, i) (*p -= i)
# define of_atomic_or32(p, i) (*p |= i)
# define of_atomic_and32(p, i) (*p &= i)
# define of_atomic_xor32(p, i) (*p ^= i)
# define of_atomic_cmpswap32(p, o, n) (*p == o ? ((*p = n) ? 1 : 1) : 0)
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
# define of_atomic_add32(p, i) __sync_add_and_fetch(p, i)
# define of_atomic_sub32(p, i) __sync_sub_and_fetch(p, i)
# define of_atomic_or32(p, i) __sync_or_and_fetch(p, i)
# define of_atomic_and32(p, i) __sync_and_and_fetch(p, i)
# define of_atomic_xor32(p, i) __sync_xor_and_fetch(p, i)
# define of_atomic_cmpswap32(p, o, n) __sync_bool_compare_and_swap(p, o, n)
#elif defined(OF_HAVE_LIBKERN_OSATOMIC_H)
# include <libkern/OSAtomic.h>
# define of_atomic_add32(p, i) OSAtomicAdd32Barrier(i, p)
# define of_atomic_sub32(p, i) OSAtomicAdd32Barriar(-(i), p)
# define of_atomic_inc32(p) OSAtomicIncrement32Barrier(p)
# define of_atomic_dec32(p) OSAtomicDecrement32Barrier(p)
# define of_atomic_or32(p, i) OSAtomicOr32Barrier(i, p)
# define of_atomic_and32(p, i) OSAtomicAnd32Barrier(i, p)
# define of_atomic_xor32(p, i) OSAtomicXor32Barrier(i, p)
# define of_atomic_cmpswap32(p, o, n) OSAtomicCompareAndSwap32Barrier(o, n, p)
#else
# error No atomic operations available!
#endif
#if !defined(OF_THREADS) || defined(OF_HAVE_GCC_ATOMIC_OPS)
# define of_atomic_inc32(p) of_atomic_add32(p, 1)
# define of_atomic_dec32(p) of_atomic_sub32(p, 1)
#endif
typedef int32_t of_spinlock_t;
#ifdef OF_THREADS
# define of_spinlock_lock(s) while (!of_atomic_cmpswap32(&s, 0, 1));
# define of_spinlock_unlock(s) s = 0
#else
# define of_spinlock_lock(s)
# define of_spinlock_unlock(s)
#endif
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