# # Simple FFI test script that tests against a simple shared object # (def is-windows (= :windows (os/which))) (def ffi/loc (string "examples/ffi/so." (if is-windows "dll" "so"))) (def ffi/source-loc "examples/ffi/so.c") (if is-windows (os/execute ["cl.exe" "/nologo" "/LD" ffi/source-loc "/link" "/DLL" (string "/OUT:" ffi/loc)] :px) (os/execute ["cc" ffi/source-loc "-shared" "-o" ffi/loc] :px)) (ffi/context ffi/loc) (def intintint (ffi/struct :int :int :int)) (def big (ffi/struct :s64 :s64 :s64)) (ffi/defbind int-fn :int [a :int b :int]) (ffi/defbind double-fn :double [a :double b :double c :double]) (ffi/defbind double-many :double [x :double y :double z :double w :double a :double b :double]) (ffi/defbind double-lots :double [a :double b :double c :double d :double e :double f :double g :double h :double i :double j :double]) (ffi/defbind float-fn :double [x :float y :float z :float]) (ffi/defbind intint-fn :int [x :double ii [:int :int]]) (ffi/defbind return-struct [:int :int] [i :int]) (ffi/defbind intintint-fn :int [x :double iii intintint]) (ffi/defbind struct-big big [i :int d :double]) (ffi/defbind void-fn :void []) (ffi/defbind double-lots-2 :double [a :double b :double c :double d :double e :double f :double g :double h :double i :double j :double]) # # Struct reading and writing # (defn check-round-trip [t value] (def buf (ffi/write t value)) (def same-value (ffi/read t buf)) (assert (deep= value same-value) (string/format "round trip %j (got %j)" value same-value))) (check-round-trip :bool true) (check-round-trip :bool false) (check-round-trip :void nil) (check-round-trip :void nil) (check-round-trip :s8 10) (check-round-trip :s8 0) (check-round-trip :s8 -10) (check-round-trip :u8 10) (check-round-trip :u8 0) (check-round-trip :s16 10) (check-round-trip :s16 0) (check-round-trip :s16 -12312) (check-round-trip :u16 10) (check-round-trip :u16 0) (check-round-trip :u32 0) (check-round-trip :u32 10) (check-round-trip :u32 0xFFFF7777) (check-round-trip :s32 0x7FFF7777) (check-round-trip :s32 0) (check-round-trip :s32 -1234567) (def s (ffi/struct :s8 :s8 :s8 :float)) (check-round-trip s [1 3 5 123.5]) (check-round-trip s [-1 -3 -5 -123.5]) # # Call functions # (tracev (double-many 1 2 3 4 5 6)) (tracev (string/format "%.17g" (double-many 1 2 3 4 5 6))) (tracev (type (double-many 1 2 3 4 5 6))) (tracev (double-lots-2 0 1 2 3 4 5 6 7 8 9)) (tracev (void-fn)) (tracev (int-fn 10 20)) (tracev (double-fn 1.5 2.5 3.5)) (tracev (double-lots 1 2 3 4 5 6 7 8 9 10)) (tracev (float-fn 8 4 17)) (tracev (intint-fn 123.456 [10 20])) (tracev (intintint-fn 123.456 [10 20 30])) (tracev (return-struct 42)) (tracev (double-lots 1 2 3 4 5 6 700 800 9 10)) (tracev (struct-big 11 99.5)) (assert (= 9876543210 (double-lots-2 0 1 2 3 4 5 6 7 8 9))) (assert (= 60 (int-fn 10 20))) (assert (= 42 (double-fn 1.5 2.5 3.5))) (assert (= 21 (math/round (double-many 1 2 3 4 5 6.01)))) (assert (= 19 (double-lots 1 2 3 4 5 6 7 8 9 10))) (assert (= 204 (float-fn 8 4 17))) (print "Done.")