std::launch

 

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Потоки (C++11)

 

Библиотека поддержки потоков

Потоки Original: Threads The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
thread (C++11)
this_thread имен Original: this_thread namespace The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
get_id (C++11) yield (C++11)	sleep_for (C++11) sleep_until (C++11)
Взаимное исключение Original: Mutual exclusion The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
mutex (C++11) timed_mutex (C++11)	recursive_mutex (C++11) recursive_timed_mutex (C++11)
Generic управления замком Original: Generic lock management The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
lock_guard (C++11) unique_lock (C++11) defer_lock_t try_to_lock_t adopt_lock_t (C++11) (C++11) (C++11)	lock (C++11) try_lock (C++11) defer_lock try_to_lock adopt_lock (C++11) (C++11) (C++11)
Условия переменных Original: Condition variables The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
condition_variable (C++11)
condition_variable_any (C++11)
notify_all_at_thread_exit (C++11)
cv_status (C++11)
Futures Original: Futures The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
promise (C++11) future (C++11) shared_future (C++11) packaged_task (C++11) async (C++11)	launch (C++11) future_status (C++11) future_error (C++11) future_category (C++11) future_errc (C++11)

 

Заголовочный файл <future>
enum class launch : /* unspecified */ {     async =    /* unspecified */,     deferred = /* unspecified */,     /* implementation-defined */ };		(начиная с C++11)

Задает запуск политике задача выполнена std::async функции. std::launch является BitmaskType (перечисление, целое число или 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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Следующие константы обозначающих отдельные биты определены в стандартной библиотеке

Original:

The following constants denoting individual bits are defined by the standard library:

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Constant Original: Constant The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Explanation
std::launch::async	Новый поток запускается для выполнения задачи асинхронно Original: a new thread is launched to execute the task asynchronously The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
std::launch::deferred	Задача выполнена на вызывающий поток в первый раз его результат по запросу (ленивые вычисления) 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. You can help to correct and verify the translation. Click here for instructions.

Кроме того, реализация разрешается

Original:

In addition, implementations are allowed to:

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• определить дополнительные биты и битовые маски для указания ограничений на задачу взаимодействия, применимые к подмножеству запуск политику, и

  Original:

  define additional bits and bitmasks to specify restrictions on task interactions applicable to a subset of launch policies, and

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• включить эти дополнительные битовых масок для первой (по умолчанию) перегрузка std::async.

  Original:

  enable those additional bitmasks for the first (default) overload of std::async.

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См. также

async (C++11)	запускает функцию асинхронно (возможно, в новом потоке) и возвращает std::future, который будет содержать результат 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. You can help to correct and verify the translation. Click here for instructions. (шаблон функции)