Virtually all callers of this function (will) pass rvalues, so take
the std::function by value (reaping C++17 guaranteed copy elision) and
std::move() into the member variable ("perfect sink").
Like for many owning types, moves are much cheaper than copies for
std::function, because the external state is merely tranferred between
objects, and not copied.
Amends
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| access | ||
| kernel | ||
| selftest | ||
| socket | ||
| ssl | ||
| CMakeLists.txt | ||