diff options
Diffstat (limited to 'kern/atomic.h')
| -rw-r--r-- | kern/atomic.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kern/atomic.h b/kern/atomic.h index 6c0105d..940720a 100644 --- a/kern/atomic.h +++ b/kern/atomic.h @@ -16,6 +16,9 @@ * * * Type-generic memory-model aware atomic operations. + * + * TODO Replace mentions of "memory barriers" throughout the code with + * C11 memory model terminology. */ #ifndef _KERN_ATOMIC_H @@ -113,6 +116,15 @@ MACRO_END #endif /* + * Thread fences. + */ + +#define atomic_fence_acquire() __atomic_thread_fence(ATOMIC_ACQUIRE) +#define atomic_fence_release() __atomic_thread_fence(ATOMIC_RELEASE) +#define atomic_fence_acq_rel() __atomic_thread_fence(ATOMIC_ACQ_REL) +#define atomic_fence_seq_cst() __atomic_thread_fence(ATOMIC_SEQ_CST) + +/* * Common shortcuts. */ |