atomic_signal_fence
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在头文件 <stdatomic.h> 中定义
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void atomic_signal_fence( memory_order order ); |
(C11 起) | |
建立订货的非原子和轻松的原子访问的内存同步的指示,
order
,在线程和信号处理器,在同一个线程中执行。这是相当于std::atomic_thread_fence,除了没有CPU指令的内存顺序发出。只有由编译器的指示,重新排序可以抑制作为order
指示。例如,写入不能移动过去的围栏发布的语义和读取的篱笆,不能提前与收购语义.原文:
Establishes memory synchronization ordering of non-atomic and relaxed atomic accesses, as instructed by
order
, between a thread and a signal handler executed on the same thread. This is equivalent to std::atomic_thread_fence, except no CPU instructions for memory ordering are issued. Only reordering of the instructions by the compiler is suppressed as order
instructs. For example, writes cannot be moved past a fence with release semantics and reads cannot be moved ahead of a fence with acquire semantics.[编辑] 参数
order | - | 这个围栏的记忆顺序执行
原文: the memory ordering executed by this fence |
[编辑] 返回值
(无)
[编辑] 另请参阅
(C11) |
通用内存的顺序独立的栅栏同步原语 原文: generic memory order-dependent fence synchronization primitive (函数) |
C++ documentation for atomic_signal_fence
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