std::launch — cppreference.com
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Spécifie la stratégie de lancement d'une tâche exécutée par la fonction std::async. std::launch est un BitmaskType (énumération, entier ou bitset) .
Original:
Specifies the launch policy for a task executed by the std::async function. std::launch is a BitmaskType (enumeration, integer, or bitset).
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Les constantes suivantes indiquant bits individuels sont définis par la bibliothèque standard:
Original:
The following constants denoting individual bits are defined by the standard library:
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Constante Original: Constant The text has been machine-translated via Google Translate. |
Explanation |
std::launch::async
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un nouveau thread est lancé pour exécuter la tâche de façon asynchrone Original: a new thread is launched to execute the task asynchronously The text has been machine-translated via Google Translate. |
std::launch::deferred
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la tâche est exécutée sur le thread appelant la première fois son résultat est demandée (évaluation paresseuse) Original: the task is executed on the calling thread the first time its result is requested (lazy evaluation) The text has been machine-translated via Google Translate. |
En outre, les implémentations sont autorisés à:
Original:
In addition, implementations are allowed to:
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définir des bits supplémentaires et pour spécifier bitmasks restrictions sur les interactions de travail applicables à un sous-ensemble de politiques de lancement, et
Original:
define additional bits and bitmasks to specify restrictions on task interactions applicable to a subset of launch policies, and
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Original:
enable those additional bitmasks for the first (default) overload of std::async.
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Voir aussi
exécute une fonction asynchrone (potentiellement dans un nouveau thread) et renvoie une std::future qui contiendra le résultat Original: runs a function asynchronously (potentially in a new thread) and returns a std::future that will hold the result The text has been machine-translated via Google Translate. (fonction générique) [edit] | |