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atomic_signal_fence

Da cppreference.com
< c‎ | atomic

 
 
Biblioteca operações atômica
Tipos
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Types
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memory_order
atomic_flag
Macros
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Macros
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ATOMIC_***_LOCK_FREE
ATOMIC_FLAG_INIT
ATOMIC_VAR_INIT
kill_dependency
Funções
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Functions
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atomic_flag_test_and_set
atomic_flag_clear
atomic_init
atomic_is_lock_free
atomic_store
atomic_load
atomic_exchange
atomic_compare_exchange
atomic_fetch_add
atomic_fetch_sub
atomic_fetch_or
atomic_fetch_xor
atomic_fetch_and
atomic_thread_fence
atomic_signal_fence
 
Defined in header <stdatomic.h>
void atomic_signal_fence( memory_order order );
(desde C11)
Estabelece a sincronização de memória ordenação de não-atômicas e relaxado acessos atômicas, conforme instruções da order, entre uma linha e um manipulador de sinal executado no mesmo segmento. Isto é equivalente a std::atomic_thread_fence, exceto há instruções da CPU para ordenação de memória são emitidos. Reordenação apenas das instruções do compilador é suprimida como order instrui. Por exemplo, escreve não pode ser movido passado uma cerca com a semântica de lançamento e lê não pode ser movido à frente de uma cerca com aquisição semântica.
Original:
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.
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[editar] Parâmetros

order -
a memória ordenação executado por essa cerca
Original:
the memory ordering executed by this fence
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[editar] Valor de retorno

(Nenhum)
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(none)
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[editar] Veja também

memória genérica depende da ordem de sincronização cerca primitiva
Original:
generic memory order-dependent fence synchronization primitive
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(função) [edit]
C++ documentation for atomic_signal_fence