;;;; 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.
;;; This used to break due to too eager auxiliary type twiddling in
;;; parse-alien-record-type.
(defparameter *maybe* nil)
-(defun with-alien-test-for-struct-plus-funcall ()
+(defun with-alien-test-for-struct-plus-funcall ()
(with-alien ((x (struct bar (x unsigned) (y unsigned)))
- ;; bogus definition, but we just need the symbol
- (f (function int (* (struct bar))) :extern "printf"))
+ ;; bogus definition, but we just need the symbol
+ (f (function int (* (struct bar))) :extern "printf"))
(when *maybe*
(alien-funcall f (addr x)))))
(let ((s1 (make-alien struct.1))
(s2 (make-alien struct.2)))
(setf (slot s1 'x) s2
- (slot s2 'x) s1
- (slot (slot s1 'x) 'y) 1
- (slot (slot s2 'x) 'y) 2)
+ (slot s2 'x) s1
+ (slot (slot s1 'x) 'y) 1
+ (slot (slot s2 'x) 'y) 2)
(assert (= 1 (slot (slot s1 'x) 'y)))
(assert (= 2 (slot (slot s2 'x) 'y))))
+;;; "Alien bug" on sbcl-devel 2004-10-11 by Thomas F. Burdick caused
+;;; by recursive struct definition.
+(let ((fname "alien-bug-2004-10-11.tmp.lisp"))
+ (unwind-protect
+ (progn
+ (with-open-file (f fname :direction :output)
+ (mapc (lambda (form) (print form f))
+ '((defpackage :alien-bug
+ (:use :cl :sb-alien))
+ (in-package :alien-bug)
+ (define-alien-type objc-class
+ (struct objc-class
+ (protocols
+ (* (struct protocol-list
+ (list (array (* (struct objc-class))))))))))))
+ (load fname)
+ (load fname)
+ (load (compile-file fname))
+ (load (compile-file fname)))
+ (delete-file (compile-file-pathname fname))
+ (delete-file fname)))
+
+;;; enumerations with only one enum resulted in division-by-zero
+;;; reported on sbcl-help 2004-11-16 by John Morrison
+(define-alien-type enum.1 (enum nil (:val0 0)))
+
+(define-alien-type enum.2 (enum nil (zero 0) (one 1) (two 2) (three 3)
+ (four 4) (five 5) (six 6) (seven 7)
+ (eight 8) (nine 9)))
+(with-alien ((integer-array (array int 3)))
+ (let ((enum-array (cast integer-array (array enum.2 3))))
+ (setf (deref enum-array 0) 'three
+ (deref enum-array 1) 'four)
+ (setf (deref integer-array 2) (+ (deref integer-array 0)
+ (deref integer-array 1)))
+ (assert (eql (deref enum-array 2) 'seven))))
+;; The code that is used for mapping from integers to symbols depends on the
+;; `density' of the set of used integers, so test with a sparse set as well.
+(define-alien-type enum.3 (enum nil (zero 0) (one 1) (k-one 1001) (k-two 1002)))
+(with-alien ((integer-array (array int 3)))
+ (let ((enum-array (cast integer-array (array enum.3 3))))
+ (setf (deref enum-array 0) 'one
+ (deref enum-array 1) 'k-one)
+ (setf (deref integer-array 2) (+ (deref integer-array 0)
+ (deref integer-array 1)))
+ (assert (eql (deref enum-array 2) 'k-two))))
+
+;; enums used to allow values to be used only once
+;; C enums allow for multiple tags to point to the same value
+(define-alien-type enum.4
+ (enum nil (:key1 1) (:key2 2) (:keytwo 2)))
+(with-alien ((enum-array (array enum.4 3)))
+ (setf (deref enum-array 0) :key1)
+ (setf (deref enum-array 1) :key2)
+ (setf (deref enum-array 2) :keytwo)
+ (assert (and (eql (deref enum-array 1) (deref enum-array 2))
+ (eql (deref enum-array 1) :key2))))
+
+;;; As reported by Baughn on #lisp, ALIEN-FUNCALL loops forever when
+;;; compiled with (DEBUG 3).
+(sb-kernel::values-specifier-type-cache-clear)
+(proclaim '(optimize (debug 3)))
+(let ((f (compile nil '(lambda (v)
+ (sb-alien:alien-funcall (sb-alien:extern-alien "getenv"
+ (function (c-string) c-string))
+ v)))))
+ (assert (typep (funcall f "HOME") '(or string null))))
+
+
+;;; CLH: Test for non-standard alignment in alien structs
+;;;
+(sb-alien:define-alien-type align-test-struct
+ (sb-alien:union align-test-union
+ (s (sb-alien:struct nil
+ (s1 sb-alien:unsigned-char)
+ (c1 sb-alien:unsigned-char :alignment 16)
+ (c2 sb-alien:unsigned-char :alignment 32)
+ (c3 sb-alien:unsigned-char :alignment 32)
+ (c4 sb-alien:unsigned-char :alignment 8)))
+ (u (sb-alien:array sb-alien:unsigned-char 16))))
+
+(let ((a1 (sb-alien:make-alien align-test-struct)))
+ (declare (type (sb-alien:alien (* align-test-struct)) a1))
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 's1) 1)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c1) 21)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c2) 41)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c3) 61)
+ (setf (sb-alien:slot (sb-alien:slot a1 's) 'c4) 81)
+ (assert (equal '(1 21 41 61 81)
+ (list (sb-alien:deref (sb-alien:slot a1 'u) 0)
+ (sb-alien:deref (sb-alien:slot a1 'u) 2)
+ (sb-alien:deref (sb-alien:slot a1 'u) 4)
+ (sb-alien:deref (sb-alien:slot a1 'u) 8)
+ (sb-alien:deref (sb-alien:slot a1 'u) 9)))))
+
+(handler-bind ((compiler-note (lambda (c)
+ (error "bad note! ~A" c))))
+ (funcall (compile nil '(lambda () (sb-alien:make-alien sb-alien:int)))))
+
+;;; Test case for unwinding an alien (Win32) exception frame
+;;;
+;;; The basic theory here is that failing to honor a win32
+;;; exception frame during stack unwinding breaks the chain.
+;;; "And if / You don't love me now / You will never love me
+;;; again / I can still hear you saying / You would never break
+;;; the chain." If the chain is broken and another exception
+;;; occurs (such as an error trap caused by an OBJECT-NOT-TYPE
+;;; error), the system will kill our process. No mercy, no
+;;; appeal. So, to check that we have done our job properly, we
+;;; need some way to put an exception frame on the stack and then
+;;; unwind through it, then trigger another exception. (FUNCALL
+;;; 0) will suffice for the latter, and a simple test shows that
+;;; CallWindowProc() establishes a frame and calls a function
+;;; passed to it as an argument.
+#+win32
+(progn
+ (load-shared-object "USER32")
+ (assert
+ (eq :ok
+ (handler-case
+ (tagbody
+ (alien-funcall
+ (extern-alien "CallWindowProcW"
+ (function unsigned-int
+ (* (function int)) unsigned-int
+ unsigned-int unsigned-int unsigned-int))
+ (alien-sap
+ (sb-alien::alien-callback (function unsigned-int)
+ #'(lambda () (go up))))
+ 0 0 0 0)
+ up
+ (funcall 0))
+ (error ()
+ :ok)))))
+
+;;; Unused local alien caused a compiler error
+(with-test (:name unused-local-alien)
+ (let ((fun `(lambda ()
+ (sb-alien:with-alien ((alien1923 (array (sb-alien:unsigned 8) 72)))
+ (values)))))
+ (assert (not (funcall (compile nil fun))))))
+
+;;; Non-local exit from WITH-ALIEN caused alien stack to be leaked.
+(defvar *sap-int*)
+(defun try-to-leak-alien-stack (x)
+ (with-alien ((alien (array (sb-alien:unsigned 8) 72)))
+ (let ((sap-int (sb-sys:sap-int (alien-sap alien))))
+ (if *sap-int*
+ (assert (= *sap-int* sap-int))
+ (setf *sap-int* sap-int)))
+ (when x
+ (return-from try-to-leak-alien-stack 'going))
+ (never)))
+(with-test (:name :nlx-causes-alien-stack-leak)
+ (let ((*sap-int* nil))
+ (loop repeat 1024
+ do (try-to-leak-alien-stack t))))
+
+;;; bug 431
+(with-test (:name :alien-struct-redefinition)
+ (eval '(progn
+ (define-alien-type nil (struct mystruct (myshort short) (mychar char)))
+ (with-alien ((myst (struct mystruct)))
+ (with-alien ((mysh short (slot myst 'myshort)))
+ (assert (integerp mysh))))))
+ (let ((restarted 0))
+ (handler-bind ((error (lambda (e)
+ (let ((cont (find-restart 'continue e)))
+ (when cont
+ (incf restarted)
+ (invoke-restart cont))))))
+ (eval '(define-alien-type nil (struct mystruct (myint int) (mychar char)))))
+ (assert (= 1 restarted)))
+ (eval '(with-alien ((myst (struct mystruct)))
+ (with-alien ((myin int (slot myst 'myint)))
+ (assert (integerp myin))))))
+
;;; success
-(quit :unix-status 104)
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