-;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; -*- Mode: ANSI-Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
-;;;; Name: immediates.cl
-;;;; Purpose: UFFI source to handle immediate types
+;;;; Name: strings.cl
+;;;; Purpose: UFFI source to handle strings, cstring and foreigns
;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Feb 2002
;;;;
-;;;; Copyright (c) 2002 Kevin M. Rosenberg
+;;;; $Id: strings.cl,v 1.9 2002/03/21 04:05:15 kevin Exp $
;;;;
-;;;; $Id: strings.cl,v 1.4 2002/03/10 11:13:07 kevin Exp $
+;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
-;;;; This file is part of the 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.
;;;; *************************************************************************
(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
(def-constant +null-cstring-pointer+
#+cmu nil
#+allegro 0
- #+lispworks (fli:make-pointer :address 0 :type :char))
+ #+lispworks (fli:make-pointer :address 0 :type '(:unsigned :char)))
(defmacro convert-from-cstring (obj)
"Converts a string from a c-call. Same as convert-from-foreign-string, except
(defmacro convert-to-cstring (obj)
#+lispworks
`(if (null ,obj)
- +null-cstring-pointer+
- (fli:make-pointer
- :address (fli:pointer-address (fli:convert-to-foreign-string ,obj))
- :type :char))
+ +null-cstring-pointer+
+ (fli:convert-to-foreign-string ,obj))
#+allegro
`(if (null ,obj)
- 0
- (values (excl:string-to-native ,obj)))
+ 0
+ (values (excl:string-to-native ,obj)))
#+cmu
(declare (ignore obj))
)
#+lispworks
`(if (null ,obj)
+null-cstring-pointer+
- (fli:make-pointer
- :address (fli:pointer-address (fli:convert-to-foreign-string ,obj))
- :type :char))
+ (fli:convert-to-foreign-string ,obj))
#+allegro
`(if (null ,obj)
0
(i (gensym)))
`(when (stringp ,obj)
(let* ((,size (length ,obj))
- (,storage (alien:make-alien char (1+ ,size))))
- (setq ,storage (alien:cast ,storage (* char)))
- (dotimes (,i ,size)
- (declare (fixnum ,i)
- (optimize (speed 3) (safety 0)))
- (setf (alien:deref ,storage ,i) (char-code (char ,obj ,i))))
- (setf (alien:deref ,storage ,size) 0)
+ (,storage (alien:make-alien (alien:unsigned 8) (1+ ,size))))
+ (setq ,storage (alien:cast ,storage (* (alien:unsigned 8))))
+ (locally
+ (declare (optimize (speed 3) (safety 0)))
+ (dotimes (,i ,size)
+ (declare (fixnum ,i))
+ (setf (alien:deref ,storage ,i) (char-code (char ,obj ,i))))
+ (setf (alien:deref ,storage ,size) 0))
,storage)))
)
-(defmacro allocate-foreign-string (size &key (unsigned nil))
+(defmacro allocate-foreign-string (size &key (unsigned t))
#+cmu
(let ((array-def (gensym)))
`(let ((,array-def (list 'alien:array 'c-call:char ,size)))
`(ff:allocate-fobject :char :c ,size)
)
-(defmacro with-cstring ((foreign-string lisp-string) &body body)
+(defmacro with-foreign-string ((foreign-string lisp-string) &body body)
+ (let ((result (gensym)))
+ `(let* ((,foreign-string (convert-to-foreign-string ,lisp-string))
+ (,result (progn ,@body)))
+ (declare (dynamic-extent ,foreign-string))
+ (free-foreign-object ,foreign-string)
+ ,result)))
+
+(defmacro with-cstring ((cstring lisp-string) &body body)
#+cmu
- `(let ((,foreign-string ,lisp-string)) ,@body)
+ `(let ((,cstring ,lisp-string)) ,@body)
#+allegro
(let ((acl-native (gensym)))
`(excl:with-native-string (,acl-native ,lisp-string)
- (let ((,foreign-string (if ,lisp-string ,acl-native 0)))
+ (let ((,cstring (if ,lisp-string ,acl-native 0)))
,@body)))
#+lispworks
(let ((result (gensym)))
- `(let* ((,foreign-string (convert-to-cstring ,lisp-string))
- (,result ,@body))
- (fli:free-foreign-object ,foreign-string)
+ `(let* ((,cstring (convert-to-cstring ,lisp-string))
+ (,result (progn ,@body)))
+ (fli:free-foreign-object ,cstring)
,result))
)
+
+
;; Modified from CMUCL's source to handle non-null terminated strings
#+cmu
(defun cmucl-naturalize-cstring (sap &key