X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=tests%2Fcompress.lisp;h=9e73326f469636cc9356bff26d1efe00a79e8583;hb=cc7b3da48f78a00cf62737f447ef9fe05a79bc37;hp=75d79c4d02ed95ee3c73341f2671db9254bd1743;hpb=a95b9a217335917d96b8c0cced4f49c3e4846115;p=uffi.git

diff --git a/tests/compress.lisp b/tests/compress.lisp
index 75d79c4..9e73326 100644
--- a/tests/compress.lisp
+++ b/tests/compress.lisp
@@ -2,30 +2,18 @@
 ;;;; *************************************************************************
 ;;;; FILE IDENTIFICATION
 ;;;;
-;;;; Name:          compress.cl
+;;;; Name:          compress.lisp
 ;;;; Purpose:       UFFI Example file for zlib compression
-;;;; Programmer:    Kevin M. Rosenberg
+;;;; Author:        Kevin M. Rosenberg
 ;;;; Date Started:  Feb 2002
 ;;;;
-;;;; $Id: compress.lisp,v 1.1 2002/09/30 10:02:36 kevin Exp $
+;;;; $Id$
 ;;;;
-;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;; This file, part of UFFI, is Copyright (c) 2002-2005 by Kevin M. Rosenberg
 ;;;;
-;;;; UFFI users are granted the rights to distribute and use this software
-;;;; as governed by the terms of the Lisp Lesser GNU Public License
-;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
 ;;;; *************************************************************************
 
-(in-package :cl-user)
-
-(unless (uffi:load-foreign-library
-	 (uffi:find-foreign-library
-	  "libz"
-	  '("/usr/local/lib/" "/usr/lib/" "/zlib/")
-	  :types '("so" "a" "dylib"))
-	 :module "zlib" 
-	 :supporting-libraries '("c"))
-  (warn "Unable to load zlib"))
+(in-package #:uffi-tests)
 
 (uffi:def-function ("compress" c-compress)
     ((dest (* :unsigned-char))
@@ -48,30 +36,57 @@
 	    (newdestlen (uffi:deref-pointer destlen :long)))
 	(unwind-protect
 	    (if (zerop result)
-		(values (uffi:convert-from-foreign-string 
-			 dest
-			 :length newdestlen
-			 :null-terminated-p nil)
+		(values (uffi:convert-from-foreign-usb8 
+			 dest newdestlen)
 			newdestlen)
 	      (error "zlib error, code ~D" result))
 	  (progn
 	    (uffi:free-foreign-object destlen)
 	    (uffi:free-foreign-object dest)))))))
 
+(uffi:def-function ("uncompress" c-uncompress)
+    ((dest (* :unsigned-char))
+     (destlen (* :long))
+     (source :cstring)
+     (source-len :long))
+  :returning :int
+  :module "zlib")
+
+(defun uncompress (source)
+  (let* ((sourcelen (length source))
+	 (destsize 200000)  ;adjust as needed
+	 (dest (uffi:allocate-foreign-string destsize :unsigned t))
+	 (destlen (uffi:allocate-foreign-object :long)))
+    (setf (uffi:deref-pointer destlen :long) destsize)
+    (uffi:with-cstring (source-native source)
+      (let ((result (c-uncompress dest destlen source-native sourcelen))
+	    (newdestlen (uffi:deref-pointer destlen :long)))
+	(unwind-protect
+	     (if (zerop result)
+		 (uffi:convert-from-foreign-string 
+		  dest
+		  :length newdestlen
+		  :null-terminated-p nil)
+		 (error "zlib error, code ~D" result))
+	  (progn
+	    (uffi:free-foreign-object destlen)
+	    (uffi:free-foreign-object dest)))))))
+
+(deftest :compress.1 (compress "")
+  #(120 156 3 0 0 0 0 1) 8)
+(deftest :compress.2  (compress "test")
+  #(120 156 43 73 45 46 1 0 4 93 1 193) 12)
+(deftest :compress.3 (compress "test2")
+  #(120 156 43 73 45 46 49 2 0 6 80 1 243) 13)
+
+(defun compress-uncompress (str)
+  (multiple-value-bind (compressed len) (compress str)
+    (declare (ignore len))
+    (multiple-value-bind (uncompressed len2) (uncompress compressed)
+      (declare (ignore len2))
+      uncompressed)))
 
-#+examples-uffi
-(progn
-  (flet ((print-results (str)
-	   (multiple-value-bind (compressed len) (compress str)
-	       (format t "~&(compress ~S) => " str)
-	       (dotimes (i len)
-		 (format t "~X" (char-code (char compressed i))))
-	       (format t ",~D" len))))
-    (print-results "")
-    (print-results "test")
-    (print-results "test2")))
 
-;; Results of the above on my system:
-;; (compress "") => 789c300001,8
-;; (compress "test") => 789c2b492d2e1045d1c1,12
-;; (compress "test2") => 789c2b492d2e31206501f3,13
+(deftest :uncompress.1 "" "")
+(deftest :uncompress.2 "test" "test")
+(deftest :uncompress.3 "test2" "test2")