0.7.5.11:
[sbcl.git] / src / code / fd-stream.lisp
index 06c75b4..9ba1ec8 100644 (file)
 ;;; descriptor. Attempt to write the data again. If it worked, remove
 ;;; the data from the OUTPUT-LATER list. If it didn't work, something
 ;;; is wrong.
-(defun do-output-later (stream)
+(defun frob-output-later (stream)
   (let* ((stuff (pop (fd-stream-output-later stream)))
         (base (car stuff))
         (start (cadr stuff))
         (setf (fd-stream-handler stream)
               (sb!sys:add-fd-handler (fd-stream-fd stream)
                                      :output
-                                     #'(lambda (fd)
-                                         (declare (ignore fd))
-                                         (do-output-later stream)))))
+                                     (lambda (fd)
+                                       (declare (ignore fd))
+                                       (frob-output-later stream)))))
        (t
         (nconc (fd-stream-output-later stream)
                (list (list base start end reuse-sap)))))
 ;;; Output the given noise. Check to see whether there are any pending
 ;;; writes. If so, just queue this one. Otherwise, try to write it. If
 ;;; this would block, queue it.
-(defun do-output (stream base start end reuse-sap)
+(defun frob-output (stream base start end reuse-sap)
   (declare (type fd-stream stream)
           (type (or system-area-pointer (simple-array * (*))) base)
           (type index start end))
 (defun flush-output-buffer (stream)
   (let ((length (fd-stream-obuf-tail stream)))
     (unless (= length 0)
-      (do-output stream (fd-stream-obuf-sap stream) 0 length t)
+      (frob-output stream (fd-stream-obuf-sap stream) 0 length t)
       (setf (fd-stream-obuf-tail stream) 0))))
 
 ;;; Define output routines that output numbers SIZE bytes long for the
   (declare (optimize (speed 1)))
   (cons 'progn
        (mapcar
-           #'(lambda (buffering)
-               (let ((function
-                      (intern (let ((*print-case* :upcase))
-                                (format nil name-fmt (car buffering))))))
-                 `(progn
-                    (defun ,function (stream byte)
-                      ,(unless (eq (car buffering) :none)
-                         `(when (< (fd-stream-obuf-length stream)
-                                   (+ (fd-stream-obuf-tail stream)
-                                      ,size))
-                            (flush-output-buffer stream)))
-                      ,@body
-                      (incf (fd-stream-obuf-tail stream) ,size)
-                      ,(ecase (car buffering)
-                         (:none
-                          `(flush-output-buffer stream))
-                         (:line
-                          `(when (eq (char-code byte) (char-code #\Newline))
-                             (flush-output-buffer stream)))
-                         (:full
-                          ))
-                      (values))
-                    (setf *output-routines*
-                          (nconc *output-routines*
-                                 ',(mapcar
-                                       #'(lambda (type)
-                                           (list type
-                                                 (car buffering)
-                                                 function
-                                                 size))
-                                     (cdr buffering)))))))
-         bufferings)))
+           (lambda (buffering)
+             (let ((function
+                    (intern (let ((*print-case* :upcase))
+                              (format nil name-fmt (car buffering))))))
+               `(progn
+                  (defun ,function (stream byte)
+                    ,(unless (eq (car buffering) :none)
+                       `(when (< (fd-stream-obuf-length stream)
+                                 (+ (fd-stream-obuf-tail stream)
+                                    ,size))
+                          (flush-output-buffer stream)))
+                    ,@body
+                    (incf (fd-stream-obuf-tail stream) ,size)
+                    ,(ecase (car buffering)
+                       (:none
+                        `(flush-output-buffer stream))
+                       (:line
+                        `(when (eq (char-code byte) (char-code #\Newline))
+                           (flush-output-buffer stream)))
+                       (:full
+                        ))
+                    (values))
+                  (setf *output-routines*
+                        (nconc *output-routines*
+                               ',(mapcar
+                                  (lambda (type)
+                                    (list type
+                                          (car buffering)
+                                          function
+                                          size))
+                                  (cdr buffering)))))))
+           bufferings)))
 
 (def-output-routines ("OUTPUT-CHAR-~A-BUFFERED"
                      1
             (setf (fd-stream-obuf-tail fd-stream) bytes))
            (t
             (flush-output-buffer fd-stream)
-            (do-output fd-stream thing start end nil))))))
+            (frob-output fd-stream thing start end nil))))))
 
 ;;; the routine to use to output a string. If the stream is
 ;;; unbuffered, slam the string down the file descriptor, otherwise
             (when last-newline
               (flush-output-buffer stream)))
            (:none
-            (do-output stream thing start end nil)))
+            (frob-output stream thing start end nil)))
          (if last-newline
              (setf (fd-stream-char-pos stream)
                    (- end last-newline 1))
          ((:line :full)
           (output-raw-bytes stream thing start end))
          (:none
-          (do-output stream thing start end nil))))))
+          (frob-output stream thing start end nil))))))
 
 ;;; Find an output routine to use given the type and buffering. Return
 ;;; as multiple values the routine, the real type transfered, and the
 ;;; Fill the input buffer, and return the first character. Throw to
 ;;; EOF-INPUT-CATCHER if the eof was reached. Drop into SYSTEM:SERVER
 ;;; if necessary.
-(defun do-input (stream)
+(defun frob-input (stream)
   (let ((fd (fd-stream-fd stream))
        (ibuf-sap (fd-stream-ibuf-sap stream))
        (buflen (fd-stream-ibuf-length stream))
                           #!+mp (sb!mp:process-wait-until-fd-usable
                                 fd :input (fd-stream-timeout stream))
                     (error 'io-timeout :stream stream :direction :read))
-                  (do-input stream))
+                  (frob-input stream))
                 (simple-stream-perror "couldn't read from ~S" stream errno)))
            ((zerop count)
             (setf (fd-stream-listen stream) :eof)
+            (/show0 "THROWing EOF-INPUT-CATCHER")
             (throw 'eof-input-catcher nil))
            (t
             (incf (fd-stream-ibuf-tail stream) count))))))
                        
 ;;; Make sure there are at least BYTES number of bytes in the input
-;;; buffer. Keep calling DO-INPUT until that condition is met.
+;;; buffer. Keep calling FROB-INPUT until that condition is met.
 (defmacro input-at-least (stream bytes)
   (let ((stream-var (gensym))
        (bytes-var (gensym)))
                      (fd-stream-ibuf-head ,stream-var))
                   ,bytes-var)
           (return))
-        (do-input ,stream-var)))))
+        (frob-input ,stream-var)))))
 
 ;;; a macro to wrap around all input routines to handle EOF-ERROR noise
 (defmacro input-wrapper ((stream bytes eof-error eof-value) &body read-forms)
                                                 0
                                                 0))))
          (cond ((eql count 1)
-                (do-input fd-stream)
+                (frob-input fd-stream)
                 (setf (fd-stream-ibuf-head fd-stream) 0)
                 (setf (fd-stream-ibuf-tail fd-stream) 0))
                (t
          (cond ((fixnump posn)
                 ;; Adjust for buffered output: If there is any output
                 ;; buffered, the *real* file position will be larger
-                ;; than reported by lseek because lseek obviously
+                ;; than reported by lseek() because lseek() obviously
                 ;; cannot take into account output we have not sent
                 ;; yet.
                 (dolist (later (fd-stream-output-later stream))
                       input-buffer-p
                       (name (if file
                                 (format nil "file ~S" file)
-                                (format nil "descriptor ~D" fd)))
+                                (format nil "descriptor ~W" fd)))
                       auto-close)
   (declare (type index fd) (type (or index null) timeout)
           (type (member :none :line :full) buffering))
                (lambda ()
                  (sb!unix:unix-close fd)
                  #!+sb-show
-                 (format *terminal-io* "** closed file descriptor ~D **~%"
+                 (format *terminal-io* "** closed file descriptor ~W **~%"
                          fd))))
     stream))
 
 ;;; Rename NAMESTRING to ORIGINAL. First, check whether we have write
 ;;; access, since we don't want to trash unwritable files even if we
 ;;; technically can. We return true if we succeed in renaming.
-(defun do-old-rename (namestring original)
+(defun rename-the-old-one (namestring original)
   (unless (sb!unix:unix-access namestring sb!unix:w_ok)
     (error "~@<The file ~2I~_~S ~I~_is not writable.~:>" namestring))
   (multiple-value-bind (okay err) (sb!unix:unix-rename namestring original)
        (:io     (values   t   t sb!unix:o_rdwr))
        (:probe  (values   t nil sb!unix:o_rdonly)))
     (declare (type index mask))
-    (let* ((pathname (pathname filename))
+    (let* ((pathname (merge-pathnames filename))
           (namestring
            (cond ((unix-namestring pathname input))
                  ((and input (eq if-does-not-exist :create))
                                              namestring
                                              err/dev)))))))
            (unless (and exists
-                        (do-old-rename namestring original))
+                        (rename-the-old-one namestring original))
              (setf original nil)
              (setf delete-original nil)
              ;; In order to use :SUPERSEDE instead, we have to make