[Sbcl-devel] help with sb-ext:run-program

[Jim N. <jim...@gm...>]

Hi, I'm having a small problem with sb-ext:run-program

When I execute "vmmap -w 1123" at the shell it prints some 2100+ lines of
output and exists with status 0.

However, when I attempt to evaluate the following expression at the SBCL
repl in slime, it never returns.

(let* ((pid (format nil "~D" (sb-posix::getpid)))
         (string (with-output-to-string (str)
                   (sb-ext:run-program "vmmap" (list "-w" pid)
                                       :search t
                                       :wait t
                                       :output str))))
    string)

And when I look at the ps output from the shell, I see that mmap -w 1123 is
running.




The documentation for sb-ext:run-program  indicates that if a stream is
passed as the
argument of :output, then the output of the program will be written there.

Can someone give me a hint about what's happening?

Thanks.
Jim