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;;;; -*- Mode: lisp; indent-tabs-mode: nil -*-
;;;
;;; funcall.lisp --- Tests function calling.
;;;
;;; Copyright (C) 2005-2006, James Bielman <jamesjb@jamesjb.com>
;;; Copyright (C) 2005-2007, Luis Oliveira <loliveira@common-lisp.net>
;;;
;;; Permission is hereby granted, free of charge, to any person
;;; obtaining a copy of this software and associated documentation
;;; files (the "Software"), to deal in the Software without
;;; restriction, including without limitation the rights to use, copy,
;;; modify, merge, publish, distribute, sublicense, and/or sell copies
;;; of the Software, and to permit persons to whom the Software is
;;; furnished to do so, subject to the following conditions:
;;;
;;; The above copyright notice and this permission notice shall be
;;; included in all copies or substantial portions of the Software.
;;;
;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
;;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
;;; DEALINGS IN THE SOFTWARE.
;;;
(in-package #:cffi-tests)
;;;# Calling with Built-In C Types
;;;
;;; Tests calling standard C library functions both passing and
;;; returning each built-in type.
;;; Don't run these tests if the implementation does not support
;;; foreign-funcall.
#-cffi-sys::no-foreign-funcall
(progn
(deftest funcall.char
(foreign-funcall "toupper" :char (char-code #\a) :char)
#.(char-code #\A))
(deftest funcall.int.1
(foreign-funcall "abs" :int -100 :int)
100)
(defun funcall-abs (n)
(foreign-funcall "abs" :int n :int))
;;; regression test: lispworks's %foreign-funcall based on creating
;;; and caching foreign-funcallables at macro-expansion time.
(deftest funcall.int.2
(funcall-abs -42)
42)
(deftest funcall.long
(foreign-funcall "labs" :long -131072 :long)
131072)
#-cffi-sys::no-long-long
(deftest funcall.long-long
(foreign-funcall "my_llabs" :long-long -9223372036854775807 :long-long)
9223372036854775807)
#-cffi-sys::no-long-long
(deftest funcall.unsigned-long-long
(let ((ullong-max (1- (expt 2 (* 8 (foreign-type-size :unsigned-long-long))))))
(eql ullong-max
(foreign-funcall "ullong" :unsigned-long-long ullong-max
:unsigned-long-long)))
t)
(deftest funcall.float
(foreign-funcall "my_sqrtf" :float 16.0 :float)
4.0)
(deftest funcall.double
(foreign-funcall "sqrt" :double 36.0d0 :double)
6.0d0)
#+(and scl long-float)
(deftest funcall.long-double
(foreign-funcall "sqrtl" :long-double 36.0l0 :long-double)
6.0l0)
(deftest funcall.string.1
(foreign-funcall "strlen" :string "Hello" :int)
5)
(deftest funcall.string.2
(with-foreign-pointer-as-string (s 100)
(setf (mem-ref s :char) 0)
(foreign-funcall "strcpy" :pointer s :string "Hello" :pointer)
(foreign-funcall "strcat" :pointer s :string ", world!" :pointer))
"Hello, world!")
(deftest funcall.string.3
(with-foreign-pointer (ptr 100)
(lisp-string-to-foreign "Hello, " ptr 8)
(foreign-funcall "strcat" :pointer ptr :string "world!" :string))
"Hello, world!")
;;;# Calling Varargs Functions
(deftest funcall.varargs.nostdlib
(foreign-funcall-varargs
"sum_double_arbitrary" (:int 26)
:double 3.14d0 :double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0
:double)
81.64d0)
;; The CHAR argument must be passed as :INT because chars are promoted
;; to ints when passed as variable arguments.
(deftest funcall.varargs.char
(with-foreign-pointer-as-string (s 100)
(setf (mem-ref s :char) 0)
(foreign-funcall-varargs
"sprintf" (:pointer s :string "%c") :int 65 :int))
"A")
(deftest funcall.varargs.int
(with-foreign-pointer-as-string (s 100)
(setf (mem-ref s :char) 0)
(foreign-funcall-varargs
"sprintf" (:pointer s :string "%d") :int 1000 :int))
"1000")
(deftest funcall.varargs.long
(with-foreign-pointer-as-string (s 100)
(setf (mem-ref s :char) 0)
(foreign-funcall-varargs
"sprintf" (:pointer s :string "%ld")
:long 131072 :int))
"131072")
;;; There is no FUNCALL.VARARGS.FLOAT as floats are promoted to double
;;; when passed as variable arguments. Currently this fails in SBCL
;;; and CMU CL on Darwin/ppc.
(deftest funcall.varargs.double
(with-foreign-pointer-as-string (s 100)
(setf (mem-ref s :char) 0)
(foreign-funcall-varargs
"sprintf" (:pointer s :string "%.2f") :double (coerce pi 'double-float) :int))
"3.14")
#+(and scl long-float)
(deftest funcall.varargs.long-double
(with-foreign-pointer-as-string (s 100)
(setf (mem-ref s :char) 0)
(foreign-funcall-varargs
"sprintf" :pointer s :string "%.2Lf" :long-double pi :int))
"3.14")
(deftest funcall.varargs.string
(with-foreign-pointer-as-string (s 100)
(setf (mem-ref s :char) 0)
(foreign-funcall-varargs
"sprintf" (:pointer s :string "%s, %s!") :string "Hello" :string "world" :int))
"Hello, world!")
;;; See DEFCFUN.DOUBLE26.
(deftest funcall.double26
(foreign-funcall "sum_double26"
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double 3.14d0
:double 3.14d0 :double 3.14d0 :double)
81.64d0)
;;; See DEFCFUN.FLOAT26.
(deftest funcall.float26
(foreign-funcall "sum_float26"
:float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
:float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
:float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
:float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
:float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
:float 5.0 :float)
130.0)
;;; Funcalling a pointer.
(deftest funcall.f-s-p.1
(foreign-funcall-pointer (foreign-symbol-pointer "abs") nil :int -42 :int)
42)
;;;# Namespaces
#-cffi-sys::flat-namespace
(deftest funcall.namespace.1
(values (foreign-funcall ("ns_function" :library libtest) :boolean)
(foreign-funcall ("ns_function" :library libtest2) :boolean))
t nil)
;;;# stdcall
#+(and x86 windows (not cffi-sys::no-stdcall))
(deftest funcall.stdcall.1
(flet ((fun ()
(foreign-funcall ("stdcall_fun@12" :convention :stdcall)
:int 1 :int 2 :int 3 :int)))
(loop repeat 100 do (fun)
finally (return (fun))))
6)
;;; RT: NIL arguments are skipped
(defvar *nil-skipped*)
(define-foreign-type check-nil-skip-type ()
()
(:actual-type :pointer)
(:simple-parser check-nil-skip-type))
(defmethod expand-to-foreign (val (type check-nil-skip-type))
(declare (ignore val))
(setf *nil-skipped* nil)
(null-pointer))
(deftest funcall.nil-skip
(let ((*nil-skipped* t))
(compile nil '(lambda ()
(foreign-funcall "abs" check-nil-skip-type nil)))
*nil-skipped*)
nil)
;;; RT: CLISP returns NIL instead of a null-pointer
(deftest funcall.pointer-not-nil
(not (null (foreign-funcall "strchr" :string "" :int 1 :pointer)))
t)
) ;; #-cffi-sys::no-foreign-funcall