X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=examples%2Fcompress.cl;h=1abaff6a4542dd831d4a05d02d0a14221a1e5c49;hb=9d071d3a1c2b8bbd91261908a424ea74472a3bb5;hp=cf3bec4e90f6fa66f323bf249a203eebd8a90d8b;hpb=192193db6e4fbda90a840474d4aa2e8762597927;p=uffi.git diff --git a/examples/compress.cl b/examples/compress.cl index cf3bec4..1abaff6 100644 --- a/examples/compress.cl +++ b/examples/compress.cl @@ -1,41 +1,36 @@ -;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*- +;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*- ;;;; ************************************************************************* ;;;; FILE IDENTIFICATION ;;;; ;;;; Name: compress.cl ;;;; Purpose: UFFI Example file for zlib compression ;;;; Programmer: Kevin M. Rosenberg -;;;; Date Started: Mar 2002 +;;;; Date Started: Feb 2002 ;;;; -;;;; Copyright (c) 2002 Kevin M. Rosenberg +;;;; $Id: compress.cl,v 1.13 2002/09/20 06:03:36 kevin Exp $ ;;;; -;;;; $Id: compress.cl,v 1.1 2002/03/09 19:55:33 kevin Exp $ +;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg ;;;; -;;;; This file is part of UFFI. -;;;; -;;;; UFFI is free software; you can redistribute it and/or modify -;;;; it under the terms of the GNU General Public License (version 2) as -;;;; published by the Free Software Foundation. -;;;; -;;;; UFFI is distributed in the hope that it will be useful, -;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;;;; GNU General Public License for more details. -;;;; -;;;; You should have received a copy of the GNU General Public License -;;;; along with UFFI; if not, write to the Free Software Foundation, Inc., -;;;; 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +;;;; 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 "/usr/lib/libz.so" "zlib" '("c")) +(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")) -(uffi:def-routine ("compress" c-compress) +(uffi:def-function ("compress" c-compress) ((dest (* :unsigned-char)) (destlen (* :long)) - (source :c-string) + (source :cstring) (source-len :long)) :returning :int :module "zlib") @@ -45,10 +40,10 @@ and the numbe of compressed bytes" (let* ((sourcelen (length source)) (destsize (+ 12 (ceiling (* sourcelen 1.01)))) - (dest (uffi:allocate-foreign-string destsize)) + (dest (uffi:allocate-foreign-string destsize :unsigned t)) (destlen (uffi:allocate-foreign-object :long))) (setf (uffi:deref-pointer destlen :long) destsize) - (uffi:with-c-string (source-native source) + (uffi:with-cstring (source-native source) (let ((result (c-compress dest destlen source-native sourcelen)) (newdestlen (uffi:deref-pointer destlen :long))) (unwind-protect @@ -64,3 +59,19 @@ (uffi:free-foreign-object dest))))))) +#+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