Differences From Artifact [17afd94567]:
- File
src/atomic.h
— part of check-in
[2a27cf3000]
at
2016-01-03 00:41:26
on branch trunk
— Update copyright
While at it, also update the mail address. (user: js, size: 20353) [annotate] [blame] [check-ins using]
To Artifact [c6a5af4a20]:
- File
src/atomic.h
— part of check-in
[96a128f954]
at
2016-07-30 21:18:37
on branch trunk
— atomic.h: Improve memory barrier
Replace of_memory_read_barrier() and of_memory_write_barrier() - which
are quite unspecific - with of_memory_enter_barrier() and
of_memory_leave_barrier().Also add an assembly implementation for ARM and ARM64. (user: js, size: 20222) [annotate] [blame] [check-ins using]
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#endif
}
static OF_INLINE void
of_memory_barrier(void)
{
#if !defined(OF_HAVE_THREADS)
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
__asm__ __volatile__ (
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#endif
}
static OF_INLINE void
of_memory_barrier(void)
{
#if !defined(OF_HAVE_THREADS)
/* nop */
#elif defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
__asm__ __volatile__ (
"mfence" ::: "memory"
);
#elif defined(OF_POWERPC_ASM)
__asm__ __volatile__ (
"sync" ::: "memory"
);
#elif defined(OF_ARMV7_ASM) || defined(OF_ARM64_ASM)
__asm__ __volatile__ (
"dmb" ::: "memory"
);
#elif defined(OF_HAVE_GCC_ATOMIC_OPS)
__sync_synchronize();
#elif defined(OF_HAVE_OSATOMIC)
OSMemoryBarrier();
#else
# error of_memory_barrier not implemented!
#endif
}
static OF_INLINE void
of_memory_enter_barrier(void)
{
of_memory_barrier();
}
static OF_INLINE void
of_memory_leave_barrier(void)
{
of_memory_barrier();
}
OF_ASSUME_NONNULL_END
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