atomic_signal_fence

void atomic_signal_fence( memory_order order );

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.

Parameters

Return value

(none).

References

• C11 standard (ISO/IEC 9899:2011):
  • 7.17.4.2 The atomic_signal_fence function (p: 279)

See also