init_named_pipe_pair

Sets up pipe as one end of a new named pipe and returns the other end for the child, as (success, client_handle). is_input says which way the data flows: true for a pipe the parent writes. The child's handle is inheritable; the caller passes it to the child and closes it. Windows only; create_process uses it, and callers rarely need it.

init_named_pipe_pair :: (
    pipe: *Process.Pipe,
    is_input: bool
) -> (success: bool, client_handle: W.HANDLE = W.INVALID_HANDLE_VALUE)