X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=uffi%2Fclsql-uffi.lisp;h=85c15c0a6b721b29e2309e91e9da28b778a17da3;hb=bac57b0475a5176f403c2227dae0d7286e699a46;hp=f50682fa799b308300a9e4bb02c81cea8d9618a6;hpb=26f5250313d43508e4d22eb7f4f745cd50ffb17b;p=clsql.git

diff --git a/uffi/clsql-uffi.lisp b/uffi/clsql-uffi.lisp
index f50682f..85c15c0 100644
--- a/uffi/clsql-uffi.lisp
+++ b/uffi/clsql-uffi.lisp
@@ -7,7 +7,7 @@
 ;;;; Programmers:   Kevin M. Rosenberg
 ;;;; Date Started:  Mar 2002
 ;;;;
-;;;; $Id: clsql-uffi.lisp,v 1.2 2002/12/13 12:21:54 kevin Exp $
+;;;; $Id: clsql-uffi.lisp,v 1.27 2003/05/27 21:40:16 kevin Exp $
 ;;;;
 ;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
 ;;;;
@@ -83,13 +83,19 @@
 (defmacro split-64-bit-integer (int64)
   `(values (ash ,int64 -32) (logand ,int64 +2^32-1+)))
 
+(defvar +ascii-N-value+ (char-code #\N))
+(defvar +ascii-U-value+ (char-code #\U))
+
+(uffi:def-type char-ptr-def (* :unsigned-char))
+
 (defun char-ptr-points-to-null (char-ptr)
   "Returns T if foreign character pointer refers to 'NULL' string. Only called for numeric entries"
   ;; Uses short cut and returns T if first character is #\N. It should
   ;; never be non-numeric
+  (declare (type char-ptr-def char-ptr))
   (let ((char (uffi:ensure-char-character
 	       (uffi:deref-pointer char-ptr :char))))
-    (eql char #\N)))
+    (char-equal char #\N)))
     
 (defun convert-raw-field (char-ptr types index)
   (let ((type (if (listp types)
@@ -114,5 +120,49 @@
 		  low32
 		  (make-64-bit-integer high32 low32)))))
 	 (t
-	  (uffi:convert-from-foreign-string char-ptr)))))))
+	  #+allegro (native-to-string char-ptr) ;; optimized
+	  #-allegro (uffi:convert-from-foreign-string char-ptr)))))))
   
+
+(uffi:def-function "strlen"
+    ((str (* :unsigned-char)))
+  :returning :unsigned-int)
+
+#+(and allegro ics)
+(defun native-to-string (s)
+  (declare (optimize (speed 3) (space 0) (safety 0) (compilation-speed 0))
+	   (type char-ptr-def s))
+  (let* ((len (strlen s))
+	 (str (make-string len)))
+    (declare (fixnum len)
+	     (simple-string str))
+    (do ((i 0))
+	((= i len))
+      (declare (fixnum i))
+      (setf (schar str i)
+	(code-char (uffi:deref-array s '(:array :unsigned-char) i)))
+      (incf i))
+    str))
+
+#+(and allegro (not ics))
+(defun native-to-string (s)
+  (declare (optimize (speed 3) (space 0) (safety 0) (compilation-speed 0))
+	   (type char-ptr-def s))
+  (let* ((len (strlen s))
+	 (len4 (floor len 4))
+	 (str (make-string len)))
+    (declare (fixnum len)
+	     (type (simple-array (signed-byte 32) (*)) str))
+    (do ((i 0))
+	((= i len4))
+      (declare (fixnum i))
+      (setf (aref (the (simple-array (signed-byte 32) (*)) str) i)
+	(uffi:deref-array s '(:array :int) i))
+	(incf i))
+    (do ((i (* 4 len4)))
+	((= i len))
+      (declare (fixnum i))
+      (setf (aref (the (simple-array (signed-byte 8) (*)) str) i)
+	(uffi:deref-array s '(:array :unsigned-char) i))
+      (incf i))
+    str))