Espaços nominais
Variantes
Acções

std::atomic_signal_fence

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< cpp‎ | atomic

 
 
Biblioteca operações atômica
Tipos
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Types
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atomic(C++11)
atomic_is_lock_free(C++11)
Funções
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Functions
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atomic_store
atomic_store_explicit
(C++11)
(C++11)
atomic_load
atomic_load_explicit
(C++11)
(C++11)
atomic_exchange
atomic_exchange_explicit
(C++11)
(C++11)
atomic_compare_exchange_weak
atomic_compare_exchange_weak_explicit
atomic_compare_exchange_strong
atomic_compare_exchange_strong_explicit
(C++11)
(C++11)
(C++11)
(C++11)
atomic_fetch_add
atomic_fetch_add_explicit
(C++11)
(C++11)
atomic_fetch_sub
atomic_fetch_sub_explicit
(C++11)
(C++11)
atomic_fetch_and
atomic_fetch_and_explicit
(C++11)
(C++11)
atomic_fetch_or
atomic_fetch_or_explicit
(C++11)
(C++11)
atomic_fetch_xor
atomic_fetch_xor_explicit
(C++11)
(C++11)
Bandeiras atômicas
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Atomic flags
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atomic_flag(C++11)
atomic_flag_test_and_set
atomic_flag_test_and_set_explicit
(C++11)
(C++11)
atomic_flag_clear
atomic_flag_clear_explicit
(C++11)
(C++11)
Inicialização
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Initialization
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atomic_init(C++11)
ATOMIC_VAR_INIT(C++11)
ATOMIC_FLAG_INIT(C++11)
Memória de encomenda
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Memory ordering
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memory_order(C++11)
kill_dependency(C++11)
atomic_thread_fence(C++11)
atomic_signal_fence(C++11)
 
Defined in header <atomic>
extern "C" void atomic_signal_fence( std::memory_order order );
(a partir do C++ 11)
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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Índice

[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)
Original:
(none)
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[editar] Exceções

noexcept specification:  
noexcept
  (a partir do C++ 11)

[editar] Veja também

define restrições de memória de encomenda para a operação dada atômica
Original:
defines memory ordering constraints for the given atomic operation
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(typedef) [edit]
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