From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Fri, 2 Sep 2005 18:42:54 +0000 (+0000)
Subject: (directory_files_internal_unwind, directory_files_internal)
X-Git-Tag: emacs-pretest-22.0.90~7271
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=9d291bdfdfc8c1431628183cec604ba27c1cc05a;p=emacs.git

(directory_files_internal_unwind, directory_files_internal)
(file_name_completion): Use a Save_Value object rather than a cons of
two 16bit ints to store the DIR*.
(directory_files_internal, file_name_completion): Handle both EINTR and
EAGAIN consistently after `readdir'.
---

diff --git a/src/dired.c b/src/dired.c
index edf666d2a5f..927276e15c0 100644
--- a/src/dired.c
+++ b/src/dired.c
@@ -131,7 +131,7 @@ Lisp_Object
 directory_files_internal_unwind (dh)
      Lisp_Object dh;
 {
-  DIR *d = (DIR *) ((XINT (XCAR (dh)) << 16) + XINT (XCDR (dh)));
+  DIR *d = (DIR *) XSAVE_VALUE (dh)->pointer;
   closedir (d);
   return Qnil;
 }
@@ -155,7 +155,6 @@ directory_files_internal (directory, full, match, nosort, attrs, id_format)
   int count = SPECPDL_INDEX ();
   struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
   DIRENTRY *dp;
-  int retry_p;
 
   /* Because of file name handlers, these functions might call
      Ffuncall, and cause a GC.  */
@@ -189,12 +188,6 @@ directory_files_internal (directory, full, match, nosort, attrs, id_format)
   /* Now *bufp is the compiled form of MATCH; don't call anything
      which might compile a new regexp until we're done with the loop!  */
 
-  /* Do this opendir after anything which might signal an error; if
-     an error is signaled while the directory stream is open, we
-     have to make sure it gets closed, and setting up an
-     unwind_protect to do so would be a pain.  */
- retry:
-
   d = opendir (SDATA (dirfilename));
   if (d == NULL)
     report_file_error ("Opening directory", Fcons (directory, Qnil));
@@ -203,8 +196,7 @@ directory_files_internal (directory, full, match, nosort, attrs, id_format)
      file-attributes on filenames, both of which can throw, so we must
      do a proper unwind-protect.  */
   record_unwind_protect (directory_files_internal_unwind,
-			 Fcons (make_number (((unsigned long) d) >> 16),
-				make_number (((unsigned long) d) & 0xffff)));
+			 make_save_value (d, 0));
 
   directory_nbytes = SBYTES (directory);
   re_match_object = Qt;
@@ -222,10 +214,15 @@ directory_files_internal (directory, full, match, nosort, attrs, id_format)
       errno = 0;
       dp = readdir (d);
 
+      if (dp == NULL && (0
 #ifdef EAGAIN
-      if (dp == NULL && errno == EAGAIN)
-	continue;
+			 || errno == EAGAIN
+#endif
+#ifdef EINTR
+			 || errno == EINTR
 #endif
+			 ))
+	{ QUIT; continue; }
 
       if (dp == NULL)
 	break;
@@ -316,22 +313,11 @@ directory_files_internal (directory, full, match, nosort, attrs, id_format)
 	}
     }
 
-  retry_p = 0;
-#ifdef EINTR
-  retry_p |= errno == EINTR;
-#endif
-
   closedir (d);
 
   /* Discard the unwind protect.  */
   specpdl_ptr = specpdl + count;
 
-  if (retry_p)
-    {
-      list = Qnil;
-      goto retry;
-    }
-
   if (NILP (nosort))
     list = Fsort (Fnreverse (list),
 		  attrs ? Qfile_attributes_lessp : Qstring_lessp);
@@ -519,8 +505,7 @@ file_name_completion (file, dirname, all_flag, ver_flag)
 	report_file_error ("Opening directory", Fcons (dirname, Qnil));
 
       record_unwind_protect (directory_files_internal_unwind,
-                             Fcons (make_number (((unsigned long) d) >> 16),
-                                    make_number (((unsigned long) d) & 0xffff)));
+                             make_save_value (d, 0));
 
       /* Loop reading blocks */
       /* (att3b compiler bug requires do a null comparison this way) */
@@ -532,8 +517,19 @@ file_name_completion (file, dirname, all_flag, ver_flag)
 #ifdef VMS
 	  dp = (*readfunc) (d);
 #else
+	  errno = 0;
 	  dp = readdir (d);
+	  if (dp == NULL && (0
+# ifdef EAGAIN
+			     || errno == EAGAIN
+# endif
+# ifdef EINTR
+			     || errno == EINTR
+# endif
+			     ))
+	    { QUIT; continue; }
 #endif
+
 	  if (!dp) break;
 
 	  len = NAMLEN (dp);