X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftarget-c-call.lisp;h=a3ff56a0536bba144e72e4ba3b5a7573cca6fb57;hb=aab81dccfb1a311eac523a855004a3669340aca6;hp=32924533ca081208422c870d988bd4064a1fef9d;hpb=9f433c5e00c308f72981dca4451d7837de14de48;p=sbcl.git

diff --git a/src/code/target-c-call.lisp b/src/code/target-c-call.lisp
index 3292453..a3ff56a 100644
--- a/src/code/target-c-call.lisp
+++ b/src/code/target-c-call.lisp
@@ -22,19 +22,41 @@
 (define-alien-type char (integer 8))
 (define-alien-type short (integer 16))
 (define-alien-type int (integer 32))
-(define-alien-type long (integer #!-alpha 32 #!+alpha 64))
+(define-alien-type long (integer #.sb!vm::n-machine-word-bits))
+(define-alien-type long-long (integer 64))
 
 (define-alien-type unsigned-char (unsigned 8))
 (define-alien-type unsigned-short (unsigned 16))
 (define-alien-type unsigned-int (unsigned 32))
-(define-alien-type unsigned-long (unsigned #!-alpha 32 #!+alpha 64))
+(define-alien-type unsigned-long (unsigned #.sb!vm::n-machine-word-bits))
+(define-alien-type unsigned-long-long (unsigned 64))
 
 (define-alien-type float single-float)
 (define-alien-type double double-float)
 
+(define-alien-type utf8-string (c-string :external-format :utf8))
+
 (define-alien-type-translator void ()
   (parse-alien-type '(values) (sb!kernel:make-null-lexenv)))
 
+
+(defun default-c-string-external-format ()
+  #!+sb-xc
+  :latin-1
+  #!-sb-xc
+  (or *default-c-string-external-format*
+      (setf *default-c-string-external-format*
+            (sb!impl::default-external-format))))
+
+;;; FIXME: %NATURALIZE-C-STRING (and the UTF8 siblings below) would
+;;; appear to be vulnerable to the lisp string moving from underneath
+;;; them if the world undergoes a GC, possibly triggered by another
+;;; thread.  Ugh.
+;;;
+;;; Actually the above shouldn't happen; x86 and x86-64 use GENCGC,
+;;; so the string can't move by virtue of pointers to it from
+;;; outside the heap. Other platforms will access the lisp string
+;;; through the GC-safe interior pointer. -- JES, 2006-01-13
 (defun %naturalize-c-string (sap)
   (declare (type system-area-pointer sap))
   (locally
@@ -43,8 +65,24 @@
                         until (zerop (sap-ref-8 sap offset))
                         finally (return offset))))
       (let ((result (make-string length :element-type 'base-char)))
-	(sb!kernel:copy-from-system-area sap 0
-                                         result (* sb!vm:vector-data-offset
-                                                   sb!vm:n-word-bits)
-                                         (* length sb!vm:n-byte-bits))
-	result))))
+        (sb!kernel:copy-ub8-from-system-area sap 0 result 0 length)
+        result))))
+
+(defun string-to-c-string (string external-format)
+  (declare (type simple-string string))
+  (locally
+      (declare (optimize (speed 3) (safety 0)))
+    (let ((func (sb!impl::get-external-format-function external-format 10)))
+      (unless func
+        (error "Undefined external-format ~A.~%" external-format))
+      (funcall (symbol-function func) string))))
+
+(defun c-string-to-string (sap external-format element-type)
+  (declare (type system-area-pointer sap))
+  (locally
+      (declare (optimize (speed 3) (safety 0)))
+    (let ((func (sb!impl::get-external-format-function external-format 9)))
+      (unless func
+        (error "Undefined external-format ~A.~%" external-format))
+      (funcall (symbol-function func) sap element-type))))
+