atomic_signal_fence
From cppreference.com
Concurrency support library
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Defined in header
<stdatomic.h>
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||
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
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.
Parameters
order | - | the memory ordering executed by this fence |
Return value
(none)
References
- C17 standard (ISO/IEC 9899:2018):
-
- 7.17.4.2 The atomic_signal_fence function (p: 204-205)
- C11 standard (ISO/IEC 9899:2011):
-
- 7.17.4.2 The atomic_signal_fence function (p: 279)
See also
(C11)
|
generic memory order-dependent fence synchronization primitive
(function) |
C++ documentation
for
atomic_signal_fence
|
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