vibe.d - asynchronously wait() for process to exit

[cy via Digitalmars-d-learn]

On Friday, 17 June 2016 at 13:53:15 UTC, Vladimir Panteleev wrote:

> Geod24 on IRC suggested signalfd + createFileDescriptorEvent. I 
> think this would work, but isn't it possible to wrap the fd 
> returned by signalfd into a Vibe.d stream and read it directly? 
> I'm just not sure how.

Well, vibe.d streams are defined as interfaces, so you'd have to 
import vibe.core.stream: InputStream, and create a SignalFdInput 
class that implemented all the required methods. When it requires 
you to "wait" for data available, you save 
core.task.Task.getThis() somewhere, and... basically do what 
you're doing with createFileDescriptorEvent, just resuming the 
task instead of handling the event in a callback.

I should point out that createFileDescriptorEvent is an assert(0) 
for libasync.