On Tuesday, 25 December 2018 at 17:12:13 UTC, Bastiaan Veelo wrote: > std.concurrency is a low-level API. You may be looking for a > higher level API: std.parallelism. See Task.done(), > https://dlang.org/phobos/std_parallelism.html#.Task.done > > Bastiaan. Thanks for the answer. I will look at the possibilities of std.parallelism.