NAME¶

std::execution::ensure_started - std::execution::ensure_started

Synopsis¶

Defined in header <execution>
execution::sender auto ensure_started(

execution::sender auto sender (since C++26)

);

Parameters¶

sender - input sender of which the stopped channel is mapped into err

Return value¶

Returns a sender which completes when the provided sender completes and sends values
equivalent to those of the provided sender.

Notes¶

* Once ensure_started returns, it is known that the provided sender has been
connected and start has been called on the resulting operation state. In other
words, the work described by the provided sender has been submitted for
execution on the appropriate execution resources.
* If the returned sender is destroyed before execution::connect() is called, or if
execution::connect() is called but the returned operation-state is destroyed
before execution::start() is called, then a stop-request is sent to the eagerly
launched operation and the operation is detached and will run to completion in
the background.
* In such a case, the operation's result will be discarded when it is eventually
complete.
* Note that the application will need to make sure that resources are kept alive
in the case that the operation detaches (e.g. by holding a std::shared_ptr to
those resources).