r10830: Automated commit for Debian build of uffi upstream-version-1.5.6

[uffi.git] / src / aggregates.lisp

diff --git a/src/aggregates.lisp b/src/aggregates.lisp
index aff8f7740dcbf502106fc465c08a31e29e874361..5d0059c03dc1f94f9cdab67a97ec18d741351345 100644 (file)
--- a/src/aggregates.lisp
+++ b/src/aggregates.lisp
@@ -9,11 +9,8 @@
 ;;;;
 ;;;; $Id$
 ;;;;
-;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;; This file, part of UFFI, is Copyright (c) 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 #:uffi)
@@ -227,25 +224,39 @@ of the enum-name name, separator-string, and field-name"
       (setf (aref a i) (uffi:deref-array s '(:array :unsigned-byte) i)))))
 
 #+sbcl
-(defun convert-from-foreign-usb8 (sap len)
-  (declare (type sb-sys:system-area-pointer sap))
-  (locally
-      (declare (optimize (speed 3) (safety 0)))
-    (let ((result (make-array len :element-type '(unsigned-byte 8))))
-      (sb-kernel:copy-from-system-area sap 0
-                                      result (* sb-vm:vector-data-offset
-                                                sb-vm:n-word-bits)
-                                      (* len sb-vm:n-byte-bits))
-      result)))
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (sb-ext:without-package-locks
+      (defvar *system-copy-fn* (if (fboundp (intern "COPY-FROM-SYSTEM-AREA" "SB-KERNEL"))
+                                  (intern "COPY-FROM-SYSTEM-AREA" "SB-KERNEL")
+                                  (intern "COPY-UB8-FROM-SYSTEM-AREA" "SB-KERNEL")))
+    (defconstant +system-copy-offset+ (if (fboundp (intern "COPY-FROM-SYSTEM-AREA" "SB-KERNEL"))
+                                         (* sb-vm:vector-data-offset sb-vm:n-word-bits)
+                                         0))
+    (defconstant +system-copy-multiplier+ (if (fboundp (intern "COPY-FROM-SYSTEM-AREA" "SB-KERNEL"))
+                                             sb-vm:n-byte-bits
+                                             1))))
+  
+
+#+sbcl
+(defun convert-from-foreign-usb8 (s len)
+  (let ((sap (sb-alien:alien-sap s)))
+    (declare (type sb-sys:system-area-pointer sap))
+    (locally
+     (declare (optimize (speed 3) (safety 0)))
+     (let ((result (make-array len :element-type '(unsigned-byte 8))))
+       (funcall *system-copy-fn* sap 0 result +system-copy-offset+
+               (* len +system-copy-multiplier+))
+       result))))
 
 #+cmu
-(defun convert-from-foreign-usb8 (sap len)
-  (declare (type system:system-area-pointer sap))
-  (locally
-      (declare (optimize (speed 3) (safety 0)))
-    (let ((result (make-array len :element-type '(unsigned-byte 8))))
-      (kernel:copy-from-system-area sap 0
-                                   result (* vm:vector-data-offset
-                                             vm:word-bits)
-                                   (* len vm:byte-bits))
-      result)))
+(defun convert-from-foreign-usb8 (s len)
+  (let ((sap (alien:alien-sap s)))
+    (declare (type system:system-area-pointer sap))
+    (locally
+       (declare (optimize (speed 3) (safety 0)))
+      (let ((result (make-array len :element-type '(unsigned-byte 8))))
+       (kernel:copy-from-system-area sap 0
+                                     result (* vm:vector-data-offset
+                                               vm:word-bits)
+                                     (* len vm:byte-bits))
+       result))))