r2385: *** empty log message ***

[uffi.git] / src / objects.cl

diff --git a/src/objects.cl b/src/objects.cl
index 7f10ab5ba30124e4a08f5e43edf5b7b4c3abbff8..7cd3cb169ae03fda13b445282e9befa8671b8a85 100644 (file)
--- a/src/objects.cl
+++ b/src/objects.cl
@@ -1,4 +1,4 @@
-;;;; -*- Mode: ANSI-Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: UFFI -*-
 ;;;; *************************************************************************
 ;;;; FILE IDENTIFICATION
 ;;;;
@@ -7,7 +7,7 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Feb 2002
 ;;;;
-;;;; $Id: objects.cl,v 1.12 2002/03/21 15:57:01 kevin Exp $
+;;;; $Id: objects.cl,v 1.22 2002/08/23 15:28:52 kevin Exp $
 ;;;;
 ;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg
 ;;;;
@@ -21,22 +21,22 @@
 
 (defmacro allocate-foreign-object (type &optional (size :unspecified))
   "Allocates an instance of TYPE. If size is specified, then allocate
-an array of TYPE with size SIZE."
+an array of TYPE with size SIZE. The TYPE parameter is evaluated."
   (if (eq size :unspecified)
       (progn
        #+cmu
-       `(alien:make-alien ,(convert-from-uffi-type type :allocation))
+       `(alien:make-alien ,(convert-from-uffi-type (eval type) :allocation))
        #+lispworks
        `(fli:allocate-foreign-object :type ',(convert-from-uffi-type type :allocate))
        #+allegro
-       `(ff:allocate-fobject ',(convert-from-uffi-type type :allocate) :c))
+       `(ff:allocate-fobject ,(convert-from-uffi-type type :allocate) :c))
       (progn
        #+cmu
-       `(alien:make-alien ,(convert-from-uffi-type type :allocation) ,size)
+       `(alien:make-alien ,(convert-from-uffi-type (eval type) :allocation) ,size)
        #+lispworks
        `(fli:allocate-foreign-object :type ',(convert-from-uffi-type type :allocate) :nelems ,size)
        #+allegro
-       `(ff:allocate-fobject '(:array ,(convert-from-uffi-type type :allocate) ,(eval size)) :c)
+       `(ff:allocate-fobject '(:array ,(convert-from-uffi-type (eval type) :allocate) ,(eval size)) :c)
       )
   ))
 
@@ -55,6 +55,13 @@ an array of TYPE with size SIZE."
   #+cmu   `(alien:null-alien ,obj)
   )
 
+(defmacro size-of-foreign-type (type)
+  #+lispworks `(fli:size-of ,type)
+  #+allegro `(ff:sizeof-fobject ,type)
+  #+cmu   `(alien:alien-size ,type)
+  #+clisp   `(values (ffi:size-of ,type))
+  )
+
 
 (defmacro make-null-pointer (type)
   #+(or allegro cmu) (declare (ignore type))
@@ -76,7 +83,7 @@ an array of TYPE with size SIZE."
   #+(or cmu lispworks) (declare (ignore type))
   #+cmu  `(alien:deref ,ptr)
   #+lispworks `(fli:dereference ,ptr)
-  #+allegro `(ff:fslot-value-typed ,type :c ,ptr)
+  #+allegro `(ff:fslot-value-typed ,(convert-from-uffi-type type :deref) :c ,ptr)
 )
 
 #+lispworks ;; with LW, deref is a character
@@ -107,13 +114,23 @@ an array of TYPE with size SIZE."
   obj
   )
 
-;; Simple first pass. Will later create optimized routines for
-;; various platforms.
-(defmacro with-foreign-object ((var type &rest etc) &rest body)
-  `(let ((,var (allocate-foreign-object ,type ,@etc)))
+;; TYPE is evaluated.
+(defmacro with-foreign-object ((var type) &rest body)
+  #-(or cmu lispworks) ; default version
+  `(let ((,var (allocate-foreign-object ,type)))
     (unwind-protect
         (progn ,@body)
-      (free-foreign-object ,var))))
+      (free-foreign-object ,var)))
+  #+cmu
+  (let ((obj (gensym)))
+    `(alien:with-alien ((,obj ,(convert-from-uffi-type (eval type) :allocate)))
+       (let ((,var (alien:addr ,obj)))
+        ,@body)))
+  #+lispworks
+  `(fli:with-dynamic-foreign-objects ((,var ,(convert-from-uffi-type
+                                             (eval type) :allocate)))
+    ,@body)
+  )
 
 
 (defmacro with-foreign-objects (bindings &rest body)