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atomic_signal_fence

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Revision as of 21:35, 31 May 2013 by P12bot (Talk | contribs)

Defined in header <stdatomic.h>
void atomic_signal_fence( memory_order order );
(since C11)

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

order - the memory ordering executed by this fence

Return value

(none)

See also

generic memory order-dependent fence synchronization primitive
(function) [edit]
C++ documentation for atomic_signal_fence