On Thursday 19 August 2010 21:07:30 Nick Sabalausky wrote: > Is std.process.system asynchronous? Is it supposed to be? Is execv known to > trick the windows command-line into giving control back to the user? > > I've been playing around a bit (on windows) with rdmd, which uses system() > heavily (and also execv for running a newly-compiled program), and I > frequently get text appearing (such as a compiler error message or results > from a program being rdmd'd and run) *after* I get keyboard control back > with a new prompt. Which is weird. > > It's going to take a little more work to whittle it down to a good test > case, but I thought I'd ask if anyone knew something already.
I believe that I got some odd behavior when I used wget; IIRC, it was returning before wget actually did anything. I ended up having to use curl. I still don't know how that happened, since even if wget started a new thread, I wouldn't have expected it to terminate and return from system. Maybe it starts a new process. I don't know. But I have seen weird behavior from system before. I don't know how much of it has to do with system and how much of it has to do with the programs themselves though. - Jonathan M Davis