Reviewers of the previous patch complained on some ugly pre-existing
code in alternator/executor.cc, where returning from an asynchronous
(future) function require lengthy verbose casts. So this patch cleans
up a few instances of these ugly casts by using co_return instead of
return.
For example, the long and verbose
return make_ready_future<executor::request_return_type>(
rjson::print(std::move(response)));
can be changed to the shorter and more readable
co_return rjson::print(std::move(response));
This patch should not have any functional implications, and also not any
performance implications: I only coroutinized slow-path functions and
one function that was already "partially" coroutinized (and this was
expecially ugly and deserved being fixed).
Signed-off-by: Nadav Har'El <nyh@scylladb.com>
(cherry picked from commit a248336e66)
f1c5350141