X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=tests%2Falien.impure.lisp;h=50297747d3028c094a5e93a2a0f41f31bb02f23f;hb=273757631306c5d5c36f3aa7fed496a6d5c5f35e;hp=8984f7dc1c36f409a2563273aff1fcf3b2f8b5f0;hpb=4898ef32c639b1c7f4ee13a5ba566ce6debd03e6;p=sbcl.git diff --git a/tests/alien.impure.lisp b/tests/alien.impure.lisp index 8984f7d..5029774 100644 --- a/tests/alien.impure.lisp +++ b/tests/alien.impure.lisp @@ -115,6 +115,17 @@ (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) @@ -125,5 +136,113 @@ 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)