DynLib

DynLib is a module for loading shared libraries at runtime. It strives to make code loading and calling dynamically easy.

(load "https://github.com/carpentry-org/dynlib@0.0.4")

(defn main []
  (println*
    &(=> (DynLib.open "libt.so")
         (Maybe.to-result @"Couldn’t open libt.so")
         (Result.and-then
           (fn [lib] (Maybe.to-result (DynLib.get lib "inc")
                              @"Couldn’t load symbol inc")))
         (Result.map (fn [f] (Int.str (f 1)))))))

close

defn

(Fn [Lib] (Maybe String))

                    (close lib)

closes a library lib. Either returns nothing or, if an error occurs, it returns the error message.

get

defn

(Fn [Lib, (Ref String a)] (Maybe b))

                    (get lib fname)

gets a function named fname from a shared library lib.

get-from-module

defn

(Fn [Lib, (Ref String a), b] (Maybe c))

                    (get-from-module lib md fname)

gets a function named fname from a Carp module md from inside a shared library lib.

open

defn

(Fn [(Ref String a)] (Maybe Lib))

                    (open lib)

opens a shared library lib.

rebind

macro

Macro

                    (rebind lib s)