std::packaged_task
In this lesson, we will introduce std::packaged_task, which is used to parallelize big computer jobs.
std::packaged_task
pack
is a wrapper for a callable, in order for it to be invoked asynchronously. By calling pack.get_future()
, we get the associated future. Invoking the call operator on a pack (pack()
) executes the std::packaged_task
and, therefore, executes the callable.
Dealing with std::packaged_task
usually consists of four steps:
I. Wrap the work:
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