import core.thread;
import std.stdio;
import std.process;
import std.string;

int main() {
    auto pipes = pipeProcess("./target", Redirect.stdout);
    write("./target started at PID ");
    writeln(pipes.pid().processID);

    File target_stdout = pipes.stdout();

    while (true) {
        write(target_stdout.readln());

        if (tryWait(pipes.pid()).terminated) {
            break;
        }
    }

    return 0;
}