What's the best direction from... http://dlang.org/phobos/std_process.html
...on spawning an async process and then peeking at it occasionally as it runs, and then get notified when it finishes? In other words, what std.process functions would you recommend I use? What I want to avoid is a blocking state where the GUI freezes because it's waiting for the process to complete.
For instance, imagine you are building a front end GUI (like GtkD) to a command-line based antivirus scanner. You'll want to spawn the process, show a progress bar, and as the command line returns status information, you peek at it asynchronously and then update the progress bar (or perhaps store virus detected info in a table), and then stop the progress bar at 100% when the command process has finished.
