The Racket C API provides intptr_t scheme_get_port_fd(Scheme_Object* port);
which you can access through the FFI: (require ffi/unsafe) (define scheme_get_port_fd (get-ffi-obj 'scheme_get_port_fd #f (_fun _racket -> _intptr))) (scheme_get_port_fd (current-output-port)) At Sun, 1 Feb 2015 21:48:26 +0100, Bartosz Przygoda wrote: > Hello, > > It is possible to communicate via serial port by using input/output ports. > However, to achieve greater level of control, one needs to use other means > - for linux systems one may want to use API defined in termios.h. > > I wanted to use Racket FFI for those functions, however, they require file > handle as parameter. Now, when I open port using open-input(-output)-port I > receive Racket variable where the internal OS handle is hidden. What are > the possibilities here? Is it possible to somehow grab file handle from > input/output port structures? > ____________________ > Racket Users list: > http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
