Defined in header <atomic> | ||
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extern "C" void atomic_signal_fence( std::memory_order order ) noexcept; | (since C++11) |
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, a fence with release semantics prevents reads or writes from being moved past subsequent writes and a fence with acquire semantics prevents reads or writes from being moved ahead of preceding reads.
| order | - | the memory ordering executed by this fence |
(none).
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(C++11) | defines memory ordering constraints for the given atomic operation (enum) |
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(C++11) | generic memory order-dependent fence synchronization primitive (function) |
C documentation for atomic_signal_fence |
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