std::once_flag
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| Defined in header <mutex>
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| class once_flag; |
(ya que C + +11) | |
The class std::once_flag is a helper structure for std::call_once.
An object of type std::once_flag that is passed to multiple calls to std::call_once allows those calls to coordinate with eachother such that only one of the calls will actually run to completion.
std::once_flag is noncopyable.
Contenido |
[editar] Las funciones miembro
std::once_flag::once_flag
| once_flag(); |
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Constructs an once_flag object. The internal state is set to indicate that no function has been called yet.
Parameters
(none)
Exceptions
[editar] Ver también
| (C++11) |
invoca una función de una sola vez, incluso si se llama desde varios subprocesos Original: invokes a function only once even if called from multiple threads The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función de plantilla) |
