1.0.3.24: remove win32 alien-timeval

[sbcl.git] / contrib / sb-posix / interface.lisp

diff --git a/contrib/sb-posix/interface.lisp b/contrib/sb-posix/interface.lisp
index 779759a..07ac6f5 100644 (file)
--- a/contrib/sb-posix/interface.lisp
+++ b/contrib/sb-posix/interface.lisp
@@ -76,7 +76,7 @@
 ;;; variable.
 (eval-when (:compile-toplevel :load-toplevel)
   (setf *c-functions-in-runtime*
-       '`(#+netbsd ,@("stat" "lstat" "fstat" "readdir" "opendir"))))
+        '`(#+netbsd ,@("stat" "lstat" "fstat" "readdir" "opendir"))))
 
 
 ;;; filesystem access
@@ -246,7 +246,30 @@
   (define-call "setpgid" int minusp (pid pid-t) (pgid pid-t))
   (define-call "setpgrp" int minusp))
 
-;;(define-call "readlink" int minusp (path filename) (buf (* t)) (len int))
+#-win32
+(progn
+  (export 'readlink :sb-posix)
+  (defun readlink (pathspec)
+    (flet ((%readlink (path buf length)
+             (alien-funcall
+              (extern-alien "readlink" (function int c-string (* t) int))
+              path buf length)))
+      (loop for size = 128 then (* 2 size)
+            for buf = (make-alien c-string size)
+            do (unwind-protect
+                    (let ((count (%readlink (filename pathspec) buf size)))
+                      (cond ((minusp count)
+                             (syscall-error))
+                            ((< 0 count size)
+                             (setf (sb-sys:sap-ref-8 (sb-alien:alien-sap buf)
+                                                     count)
+                                   0)
+                             (return
+                               (sb-alien::c-string-to-string
+                                (sb-alien:alien-sap buf)
+                                (sb-impl::default-external-format)
+                                'character)))))
+                 (free-alien buf))))))
 
 #-win32
 (progn
@@ -336,6 +359,11 @@
 (define-pw-call "getpwnam" login-name (function (* alien-passwd) c-string))
 (define-pw-call "getpwuid" uid (function (* alien-passwd) uid-t))
 
+#-win32
+(define-protocol-class timeval alien-timeval ()
+  ((sec :initarg :tv-sec :accessor timeval-sec)
+   (usec :initarg :tv-usec :accessor timeval-usec)))
+
 (define-protocol-class stat alien-stat ()
   ((mode :initarg :mode :accessor stat-mode)
    (ino :initarg :ino :accessor stat-ino)
@@ -581,4 +609,3 @@ than C's printf) with format string FORMAT and arguments ARGS."
                             priority "%s" message)))
       (syslog1 priority (apply #'format nil format args))))
   (define-call "closelog" void never-fails))
-