0.9.5.13:

[sbcl.git] / tests / callback.impure.lisp

diff --git a/tests/callback.impure.lisp b/tests/callback.impure.lisp
index 360224b..8dd89d7 100644 (file)
--- a/tests/callback.impure.lisp
+++ b/tests/callback.impure.lisp
@@ -6,32 +6,41 @@
 ;;;; While most of SBCL is derived from the CMU CL system, the test
 ;;;; files (like this one) were written from scratch after the fork
 ;;;; from CMU CL.
-;;;; 
+;;;;
 ;;;; This software is in the public domain and is provided with
 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
 ;;;; more information.
 
 (in-package :cl-user)
 
-(defun alien-callback (type fun)
-  (sb-alien-internals:alien-callback type fun))
+;;; callbacks only on a few platforms
+#-(or (and ppc darwin) x86)
+(quit :unix-status 104)
+
+;;; simple callback for a function
 
 (defun thunk ()
   (write-string "hi"))
 
-(defvar *thunk* (alien-callback '(function c-string) #'thunk))
+(defvar *thunk*
+  (sb-alien::alien-callback (function c-string) #'thunk))
 
 (assert (equal (with-output-to-string (*standard-output*)
-                (alien-funcall *thunk*))
-              "hi"))
+                 (alien-funcall *thunk*))
+               "hi"))
+
+;;; simple callback for a symbol
 
 (defun add-two-ints (arg1 arg2)
   (+ arg1 arg2))
 
-(defvar *add-two-ints* (alien-callback '(function int int int) 'add-two-ints))
+(defvar *add-two-ints*
+  (sb-alien::alien-callback (function int int int) 'add-two-ints))
 
 (assert (= (alien-funcall *add-two-ints* 555 444444) 444999))
 
+;;; actually using a callback with foreign code
+
 (define-alien-routine qsort void
   (base (* t))
   (nmemb int)
@@ -40,22 +49,23 @@
 
 (sb-alien::define-alien-callback double*-cmp int ((arg1 (* double)) (arg2 (* double)))
   (let ((a1 (deref arg1))
-       (a2 (deref arg2)))
+        (a2 (deref arg2)))
     (cond ((= a1 a2) 0)
-         ((< a1 a2) -1)
-         (t 1))))
+          ((< a1 a2) -1)
+          (t 1))))
 
 (let* ((vector (coerce '(0.1d0 0.5d0 0.2d0 1.2d0 1.5d0 2.5d0 0.0d0 0.1d0 0.2d0 0.3d0)
-                      '(vector double-float)))
+                       '(vector double-float)))
        (sorted (sort (copy-seq vector) #'<)))
   (gc :full t)
   (sb-sys:with-pinned-objects (vector)
     (qsort (sb-sys:vector-sap vector)
-          (length vector)
-          (alien-size double :bytes)
-          double*-cmp))
+           (length vector)
+           (alien-size double :bytes)
+           double*-cmp))
   (assert (equalp vector sorted)))
 
+;;; returning floats
 
 (sb-alien::define-alien-callback redefined-fun int ()
     0)
@@ -77,4 +87,42 @@
 (assert (= spi (alien-funcall return-single spi)))
 (assert (= pi (alien-funcall return-double pi)))
 
-(quit :unix-status 104)
+;;; invalidation
+
+(sb-alien::define-alien-callback to-be-invalidated int ()
+  5)
+
+(assert (= 5 (alien-funcall to-be-invalidated)))
+
+(multiple-value-bind (p valid) (sb-alien::alien-callback-p to-be-invalidated)
+  (assert p)
+  (assert valid))
+
+(sb-alien::invalidate-alien-callback to-be-invalidated)
+
+(multiple-value-bind (p valid) (sb-alien::alien-callback-p to-be-invalidated)
+  (assert p)
+  (assert (not valid)))
+
+(multiple-value-bind (res err)
+    (ignore-errors (alien-funcall to-be-invalidated))
+  (assert (and (not res) (typep err 'error))))
+
+;;; getting and setting the underlying function
+
+(sb-alien::define-alien-callback foo int ()
+  13)
+
+(defvar *foo* #'foo)
+
+(assert (eq #'foo (sb-alien::alien-callback-function foo)))
+
+(defun bar ()
+  26)
+
+(setf (sb-alien::alien-callback-function foo) #'bar)
+
+(assert (eq #'bar (sb-alien::alien-callback-function foo)))
+
+(assert (= 26 (alien-funcall foo)))
+