- fork/pipe+ conns #!optional thunk continue-threads?procedure
- fork%/pipe+ conns #!optional thunk continue-threads?procedure
These are like fork/pipe and fork%/pipe, except they allow you to control how the file descriptors are wired. Conns is a list of lists, of the form ((from-fd1 from-fd2 ... to-fd) ...). See the description of pipe+ under the run special form for more information.
Currently fork%/pipe+ is just an alias for fork/pipe+.