std::experimental:: packaged_task (library fundamentals TS)
This page is about the modified version of
std::packaged_task
with type-erased allocator support provided by the Library Fundamentals TSes. For the version of
packaged_task
provided by the concurrency TS supporting the
std::future
improvements made by that TS, see
std::experimental::concurrency_v1::packaged_task
.
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Defined in header
<experimental/future>
|
||
|
template
<
class
>
class
packaged_task
;
//not defined
|
(1) | (library fundamentals TS) |
|
template
<
class
R,
class
...
Args
>
class packaged_task < R ( Args... ) > ; |
(2) | (library fundamentals TS) |
std::experimental::fundamentals_v1::packaged_task
(and
std::experimental::fundamentals_v2::packaged_task
) is a modified version of
std::packaged_task
provided by the library fundamentals TS with support for type-erased allocators.
Member types
| Member type | Definition |
allocator_type
|
std::experimental::erased_type |
Member functions
|
constructs the task object
(public member function) |
|
|
retrieves a pointer to the memory resource used by this object to allocate memory
(public member function) |
Non-member function
specializes the
swap
algorithm
(function template) |
Helper classes
|
specializes the
std::uses_allocator
type trait
(class template specialization) |
Members identical to std:: packaged_task
Member functions
|
destructs the task object
(public member function of
std::packaged_task<R(Args...)>
)
|
|
|
moves the task object
(public member function of
std::packaged_task<R(Args...)>
)
|
|
|
checks if the task object has a valid function
(public member function of
std::packaged_task<R(Args...)>
)
|
|
|
swaps two task objects
(public member function of
std::packaged_task<R(Args...)>
)
|
|
Getting the result |
|
|
returns a
std::future
associated with the promised result
(public member function of
std::packaged_task<R(Args...)>
)
|
|
Execution |
|
|
executes the function
(public member function of
std::packaged_task<R(Args...)>
)
|
|
|
executes the function ensuring that the result is ready only once the current thread exits
(public member function of
std::packaged_task<R(Args...)>
)
|
|
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resets the state abandoning any stored results of previous executions
(public member function of
std::packaged_task<R(Args...)>
)
|
|