how to run async jobs on after build

[C1oud555]

I want to auto run test after build. So I add a after_build function on target.

However I want to run the tests in parallel by os.runv. seems it's blocking.

is there any other ways I can do this?

[waruqi]

use task.run

[C1oud555]

look like task.run is also a blocking call.

To to more specific, I am using catch2. and it generate a binary(the target)
with some arguments, the target can run part of the test. eg:

      os.runv(target:targetfile(), {"--order rand", "--shard-count 4","--shard-index 0", "--rng-seed 0xBEEF"})
      os.runv(target:targetfile(), {"--order rand", "--shard-count 4","--shard-index 1", "--rng-seed 0xBEEF"})
      os.runv(target:targetfile(), {"--order rand", "--shard-count 4","--shard-index 2", "--rng-seed 0xBEEF"})
      os.runv(target:targetfile(), {"--order rand", "--shard-count 4","--shard-index 3", "--rng-seed 0xBEEF"})

so the tests can be splited and run in parallel

However, I also want to run them in xmake.lua asyncly..., but seems like task.run, os.run are all blocking calls.

Otherwise, I have to create a shell script, and put four commands inside it with & appended.

[waruqi]

because xmake tests will call build task to build tests first. we can not call it in after_build. it will cause dead-loop.