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    std::atomic_is_lock_free, ATOMIC_xxx_LOCK_FREE

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    <metanoindex/>

     
    C++
     
    Atomare Operationen Bibliothek
    Types
    Original:
    Types
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    atomic(C++11)
    atomic_is_lock_free(C++11)
    Funktionen
    Original:
    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)
    Atomic Fahnen
    Original:
    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)
    Initialisierung
    Original:
    Initialization
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    atomic_init(C++11)
    ATOMIC_VAR_INIT(C++11)
    ATOMIC_FLAG_INIT(C++11)
    Speicher Bestellung
    Original:
    Memory ordering
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    memory_order(C++11)
    kill_dependency(C++11)
    atomic_thread_fence(C++11)
    atomic_signal_fence(C++11)
     
    <tbody> </tbody>
    definiert in Header <atomic>
    template< class Atomic > bool atomic_is_lock_free(const volatile Atomic* obj)
    		 (1) (seit C++11)
    template< class Atomic > bool atomic_is_lock_free(const Atomic* obj)
    		 (2) (seit C++11)
    #define ATOMIC_CHAR_LOCK_FREE /* unspecified */ #define ATOMIC_CHAR16_T_LOCK_FREE /* unspecified */ #define ATOMIC_CHAR32_T_LOCK_FREE /* unspecified */ #define ATOMIC_WCHAR_T_LOCK_FREE /* unspecified */ #define ATOMIC_SHORT_LOCK_FREE /* unspecified */ #define ATOMIC_INT_LOCK_FREE /* unspecified */ #define ATOMIC_LONG_LOCK_FREE /* unspecified */ #define ATOMIC_LLONG_LOCK_FREE /* unspecified */ #define ATOMIC_POINTER_LOCK_FREE /* unspecified */
    		 (3) (seit C++11)

    1-2)

    Bestimmt, ob der atomare Objekt durch obj wies umgesetzt Lock-freie, als ob durch den Aufruf obj->is_lock_free()
    Original:
    Determines if the atomic object pointed to by obj is implemented lock-free, as if by calling obj->is_lock_free()
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    3)

    Erweitert, um eine Integer-Konstante Ausdruck mit dem Wert 0 für die eingebaute atomare Typen, die nie Lock-frei, um 1 für die eingebaute atomare Typen, die manchmal lock-frei, und 2 für die eingebaute atomare Typen, sind immer lock-free .
    Original:
    Expands to an integer constant expression with value 0 for the built-in atomic types that are never lock-free, to 1 for the built-in atomic types that are sometimes lock-free, and to 2 for the built-in atomic types that are always lock-free.
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    Notes

    Alle atomaren Typen außer std::atomic_flag kann unter Verwendung Mutexe oder andere Verriegelung Operationen, anstatt die Lock-freien Atom CPU-Instruktionen werden. Atomic Typen sind auch erlaubt sein manchmal Lock-frei, zum Beispiel wenn nur ausgerichtet Speicherzugriffe natürlicherweise atomaren auf einer gegebenen Architektur sind, haben fehlausgerichtet Gegenstände des gleichen Typs zu Sperren verwendet wird. Wenn der Typ ist manchmal lock-frei, dann die Funktion (1-2) oder ihr Mitglied Funktion äquivalent zu verwenden, um festzustellen, ob die jeweilige Instanz Lock-frei sein .
    Original:
    All atomic types except for std::atomic_flag may be implemented using mutexes or other locking operations, rather than using the lock-free atomic CPU instructions. Atomic types are also allowed to be sometimes lock-free, e.g. if only aligned memory accesses are naturally atomic on a given architecture, misaligned objects of the same type have to use locks. If the type is sometimes lock-free, then the function (1-2) or its member function equivalent has to be used to determine if the particular instance is lock-free.
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    Parameter

    obj -
    Zeiger auf den atomaren Objekt zu untersuchen
    Original:
    pointer to the atomic object to examine
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    Rückgabewert

    true wenn *obj ist ein Lock-freien Atom-, false sonst .
    Original:
    true if *obj is a lock-free atomic, false otherwise.
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    Ausnahmen

    noexcept specification:  
    <tbody> </tbody>
    noexcept
      (seit C++11)

    Beispiel

    This section is incomplete
    Reason: no example

    Siehe auch
    prüft, ob der atomare Objektsperre-frei ist
    Original:
    checks if the atomic object is lock-free
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    (öffentliche Elementfunktion of std::atomic) [edit]
    spezialisiert atomare Operationen für std::shared_ptr
    Original:
    specializes atomic operations for std::shared_ptr
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    (Funktions-Template)
    (C++11)
    Die Lock-freie boolean atomaren Typ
    Original:
    the lock-free boolean atomic type
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    (Klasse) [edit]