Added emplace variants of enqueue and try_enqueue #275
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…he type from 'U' to 'Args' for internal methods to denote that these are constructor arguments
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This PR adds variants of
enqueueandtry_enqueuethat construct queue elements in-place. This allows avoiding an extra move for potentially expensive to move objects.The next functions were added:
enqueue_emplace- a variant of enqueue that takes constructor arguments of an element to construct the element in-place in the queue.enqueue_token_emplace- a variant of enqueue that takes producer_token_t and constructor arguments to construct the element in-place in the queue (nameenqueue_emplacecould not be used because of collision with the previous variadic template function when using multiple arguments)try_enqueue_emplace- a variant oftry_enqueuethat takes constructor arguments (same as above)try_enqueue_token_emplace- a variant oftry_enqueuethat takes producer_token_t and constructor arguments (same as above)Added simple unit tests to cover new functions.
The PR split into two commits: the change+tests, and refactoring to variable names.
I'm not sure whether it's a good contribution or not because it makes the code of the implementation a bit more complex, but it feels like a nice option to have for the users. Also not sure whether the chosen names fit nicely with the codebase.
Feel free to make any changes.