[Emacs-diffs] /srv/bzr/emacs/trunk r106294: * nsfns.m: Declare image_cache_refcount if GLYPH_DEBUG.

[Jan D.]

------------------------------------------------------------
revno: 106294
fixes bug(s): http://debbugs.gnu.org/9943
committer: Jan D. <address@hidden>
branch nick: trunk
timestamp: Sat 2011-11-05 13:25:01 +0100
message:
  * nsfns.m: Declare image_cache_refcount if GLYPH_DEBUG.
  (unwind_create_frame): New function.
  (Fx_create_frame): Restructure code to be more similar to the one in
  xfns.c.  Call record_unwind_protect with unwind_create_frame (Bug#9943).
  Initialize image_cache_refcount if GLYPH_DEBUG (Bug#9943).
  Move terminal->reference_count++ just before making the frame official
  (Bug#9943).
  
  * nsterm.m (x_free_frame_resources): New function.
  (x_destroy_window): Move code to x_free_frame_resources.
modified:
  src/ChangeLog
  src/nsfns.m
  src/nsterm.m

=== modified file 'src/ChangeLog'
--- a/src/ChangeLog     2011-11-05 12:04:34 +0000
+++ b/src/ChangeLog     2011-11-05 12:25:01 +0000
@@ -1,5 +1,16 @@
 2011-11-05  Jan Djärv  <address@hidden>
 
+       * nsfns.m: Declare image_cache_refcount if GLYPH_DEBUG.
+       (unwind_create_frame): New function (Bug#9943).
+       (Fx_create_frame): Restructure code to be more similar to the one in
+       xfns.c.  Call record_unwind_protect with unwind_create_frame (Bug#9943).
+       Initialize image_cache_refcount if GLYPH_DEBUG (Bug#9943).
+       Move terminal->reference_count++ just before making the frame official
+       (Bug#9943).
+
+       * nsterm.m (x_free_frame_resources): New function.
+       (x_destroy_window): Move code to x_free_frame_resources.
+
        * xfns.c (unwind_create_frame): Fix comment.
        (Fx_create_frame, x_create_tip_frame): Move
        terminal->reference_count++ just before making the frame

=== modified file 'src/nsfns.m'
--- a/src/nsfns.m       2011-08-14 10:39:38 +0000
+++ b/src/nsfns.m       2011-11-05 12:25:01 +0000
@@ -101,6 +101,10 @@
 static Lisp_Object as_script, *as_result;
 static int as_status;
 
+#if GLYPH_DEBUG
+static ptrdiff_t image_cache_refcount;
+#endif
+
 /* ==========================================================================
 
     Internal utility functions
@@ -1038,6 +1042,41 @@
 };
 
 
+/* Handler for signals raised during x_create_frame.
+   FRAME is the frame which is partially constructed.  */
+
+static Lisp_Object
+unwind_create_frame (Lisp_Object frame)
+{
+  struct frame *f = XFRAME (frame);
+
+  /* If frame is already dead, nothing to do.  This can happen if the
+     display is disconnected after the frame has become official, but
+     before x_create_frame removes the unwind protect.  */
+  if (!FRAME_LIVE_P (f))
+    return Qnil;
+
+  /* If frame is ``official'', nothing to do.  */
+  if (!CONSP (Vframe_list) || !EQ (XCAR (Vframe_list), frame))
+    {
+#if GLYPH_DEBUG && XASSERTS
+      struct ns_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+#endif
+
+      x_free_frame_resources (f);
+      free_glyphs (f);
+
+#if GLYPH_DEBUG
+      /* Check that reference counts are indeed correct.  */
+      xassert (dpyinfo->terminal->image_cache->refcount == 
image_cache_refcount);
+#endif
+      return Qt;
+    }
+
+  return Qnil;
+}
+
+
 
 /* ==========================================================================
 
@@ -1047,46 +1086,50 @@
 
 DEFUN ("x-create-frame", Fx_create_frame, Sx_create_frame,
        1, 1, 0,
-       doc: /* Make a new Nextstep window, called a \"frame\" in Emacs terms.
+       doc: /* Make a new Nextstep window, called a "frame" in Emacs terms.
 Return an Emacs frame object.
 PARMS is an alist of frame parameters.
 If the parameters specify that the frame should not have a minibuffer,
 and do not specify a specific minibuffer window to use,
 then `default-minibuffer-frame' must be a frame whose minibuffer can
-be shared by the new frame.  */)
+be shared by the new frame.
+
+This function is an internal primitive--use `make-frame' instead.  */)
      (Lisp_Object parms)
 {
-  static int desc_ctr = 1;
   struct frame *f;
-  struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
   Lisp_Object frame, tem;
   Lisp_Object name;
   int minibuffer_only = 0;
+  int window_prompting = 0;
+  int width, height;
   int count = specpdl_ptr - specpdl;
+  struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
   Lisp_Object display;
   struct ns_display_info *dpyinfo = NULL;
   Lisp_Object parent;
   struct kboard *kb;
   Lisp_Object tfont, tfontsize;
-  int window_prompting = 0;
-  int width, height;
+  static int desc_ctr = 1;
 
   check_ns ();
 
-  /* Seems a little strange, but other terms do it. Perhaps the code below
-     is modifying something? */
+  /* x_get_arg modifies parms.  */
   parms = Fcopy_alist (parms);
 
+  /* Use this general default value to start with
+     until we know if this frame has a specified name.  */
+  Vx_resource_name = Vinvocation_name;
+
   display = x_get_arg (dpyinfo, parms, Qterminal, 0, 0, RES_TYPE_STRING);
   if (EQ (display, Qunbound))
     display = Qnil;
   dpyinfo = check_ns_display_info (display);
+  kb = dpyinfo->terminal->kboard;
 
   if (!dpyinfo->terminal->name)
     error ("Terminal is not live, can't create new frames on it");
 
-  kb = dpyinfo->terminal->kboard;
-
   name = x_get_arg (dpyinfo, parms, Qname, 0, 0, RES_TYPE_STRING);
   if (!STRINGP (name)
       && ! EQ (name, Qunbound)
@@ -1095,8 +1138,6 @@
 
   if (STRINGP (name))
     Vx_resource_name = name;
-  else
-    Vx_resource_name = Vinvocation_name;
 
   parent = x_get_arg (dpyinfo, parms, Qparent_id, 0, 0, RES_TYPE_NUMBER);
   if (EQ (parent, Qunbound))
@@ -1104,57 +1145,36 @@
   if (! NILP (parent))
     CHECK_NUMBER (parent);
 
+  /* make_frame_without_minibuffer can run Lisp code and garbage collect.  */
+  /* No need to protect DISPLAY because that's not used after passing
+     it to make_frame_without_minibuffer.  */
   frame = Qnil;
   GCPRO4 (parms, parent, name, frame);
-
   tem = x_get_arg (dpyinfo, parms, Qminibuffer, "minibuffer", "Minibuffer",
                   RES_TYPE_SYMBOL);
   if (EQ (tem, Qnone) || NILP (tem))
-    {
       f = make_frame_without_minibuffer (Qnil, kb, display);
-    }
   else if (EQ (tem, Qonly))
     {
       f = make_minibuffer_frame ();
       minibuffer_only = 1;
     }
   else if (WINDOWP (tem))
-    {
       f = make_frame_without_minibuffer (tem, kb, display);
-    }
   else
-    {
       f = make_frame (1);
-    }
-
-  /* Set the name; the functions to which we pass f expect the name to
-     be set.  */
-  if (EQ (name, Qunbound) || NILP (name) || (XTYPE (name) != Lisp_String))
-    {
-      f->name = build_string ([ns_app_name UTF8String]);
-      f->explicit_name =0;
-    }
-  else
-    {
-      f->name = name;
-      f->explicit_name = 1;
-      specbind (Qx_resource_name, name);
-    }
 
   XSETFRAME (frame, f);
   FRAME_CAN_HAVE_SCROLL_BARS (f) = 1;
 
   f->terminal = dpyinfo->terminal;
-  f->terminal->reference_count++;
 
   f->output_method = output_ns;
   f->output_data.ns = (struct ns_output *)xmalloc (sizeof 
*(f->output_data.ns));
-  memset (f->output_data.ns, 0, sizeof (*(f->output_data.ns)));
+  memset (f->output_data.ns, 0, sizeof *(f->output_data.ns));
 
   FRAME_FONTSET (f) = -1;
 
-  /* record_unwind_protect (unwind_create_frame, frame); safety; maybe later? 
*/
-
   f->icon_name = x_get_arg (dpyinfo, parms, Qicon_name, "iconName", "Title",
                             RES_TYPE_STRING);
   if (! STRINGP (f->icon_name))
@@ -1162,6 +1182,9 @@
 
   FRAME_NS_DISPLAY_INFO (f) = dpyinfo;
 
+  /* With FRAME_NS_DISPLAY_INFO set up, this unwind-protect is safe.  */
+  record_unwind_protect (unwind_create_frame, frame);
+
   f->output_data.ns->window_desc = desc_ctr++;
   if (!NILP (parent))
     {
@@ -1174,6 +1197,20 @@
       f->output_data.ns->explicit_parent = 0;
     }
 
+  /* Set the name; the functions to which we pass f expect the name to
+     be set.  */
+  if (EQ (name, Qunbound) || NILP (name) || ! STRINGP (name))
+    {
+      f->name = build_string ([ns_app_name UTF8String]);
+      f->explicit_name = 0;
+    }
+  else
+    {
+      f->name = name;
+      f->explicit_name = 1;
+      specbind (Qx_resource_name, name);
+    }
+
   f->resx = dpyinfo->resx;
   f->resy = dpyinfo->resy;
 
@@ -1223,11 +1260,15 @@
                       "leftFringe", "LeftFringe", RES_TYPE_NUMBER);
   x_default_parameter (f, parms, Qright_fringe, Qnil,
                       "rightFringe", "RightFringe", RES_TYPE_NUMBER);
-  /* end PENDING */
+
+#if GLYPH_DEBUG
+  image_cache_refcount =
+    FRAME_IMAGE_CACHE (f) ? FRAME_IMAGE_CACHE (f)->refcount : 0;
+#endif
 
   init_frame_faces (f);
-
-  /* The X resources controlling the menu-bar and tool-bar are
+  
+  /* The resources controlling the menu-bar and tool-bar are
      processed specially at startup, and reflected in the mode
      variables; ignore them here.  */
   x_default_parameter (f, parms, Qmenu_bar_lines,
@@ -1244,38 +1285,6 @@
   x_default_parameter (f, parms, Qtitle, Qnil, "title", "Title",
                        RES_TYPE_STRING);
 
-/* TODO: other terms seem to get away w/o this complexity.. */
-  if (NILP (Fassq (Qwidth, parms)))
-    {
-      Lisp_Object value
-        = x_get_arg (dpyinfo, parms, Qwidth, "width", "Width",
-                     RES_TYPE_NUMBER);
-      if (! EQ (value, Qunbound))
-       parms = Fcons (Fcons (Qwidth, value), parms);
-    }
-  if (NILP (Fassq (Qheight, parms)))
-    {
-      Lisp_Object value
-        = x_get_arg (dpyinfo, parms, Qheight, "height", "Height",
-                     RES_TYPE_NUMBER);
-      if (! EQ (value, Qunbound))
-       parms = Fcons (Fcons (Qheight, value), parms);
-    }
-  if (NILP (Fassq (Qleft, parms)))
-    {
-      Lisp_Object value
-        = x_get_arg (dpyinfo, parms, Qleft, "left", "Left", RES_TYPE_NUMBER);
-      if (! EQ (value, Qunbound))
-       parms = Fcons (Fcons (Qleft, value), parms);
-    }
-  if (NILP (Fassq (Qtop, parms)))
-    {
-      Lisp_Object value
-        = x_get_arg (dpyinfo, parms, Qtop, "top", "Top", RES_TYPE_NUMBER);
-      if (! EQ (value, Qunbound))
-       parms = Fcons (Fcons (Qtop, value), parms);
-    }
-
   window_prompting = x_figure_window_size (f, parms, 1);
 
   tem = x_get_arg (dpyinfo, parms, Qunsplittable, 0, 0, RES_TYPE_BOOLEAN);
@@ -1297,23 +1306,27 @@
 
   x_icon (f, parms);
 
+  /* ns_display_info does not have a reference_count.  */
+  f->terminal->reference_count++;
+
   /* It is now ok to make the frame official even if we get an error below.
      The frame needs to be on Vframe_list or making it visible won't work. */
   Vframe_list = Fcons (frame, Vframe_list);
-  /*FRAME_NS_DISPLAY_INFO (f)->reference_count++; */
-
-  x_default_parameter (f, parms, Qicon_type, Qnil, "bitmapIcon", "BitmapIcon",
-                      RES_TYPE_SYMBOL);
-  x_default_parameter (f, parms, Qauto_raise, Qnil, "autoRaise", 
"AutoRaiseLower",
-                      RES_TYPE_BOOLEAN);
-  x_default_parameter (f, parms, Qauto_lower, Qnil, "autoLower", "AutoLower",
-                      RES_TYPE_BOOLEAN);
-  x_default_parameter (f, parms, Qcursor_type, Qbox, "cursorType", 
"CursorType",
-                      RES_TYPE_SYMBOL);
-  x_default_parameter (f, parms, Qscroll_bar_width, Qnil, "scrollBarWidth",
-                      "ScrollBarWidth", RES_TYPE_NUMBER);
-  x_default_parameter (f, parms, Qalpha, Qnil, "alpha", "Alpha",
-                      RES_TYPE_NUMBER);
+
+  x_default_parameter (f, parms, Qicon_type, Qnil,
+                       "bitmapIcon", "BitmapIcon", RES_TYPE_SYMBOL);
+
+  x_default_parameter (f, parms, Qauto_raise, Qnil,
+                       "autoRaise", "AutoRaiseLower", RES_TYPE_BOOLEAN);
+  x_default_parameter (f, parms, Qauto_lower, Qnil,
+                       "autoLower", "AutoLower", RES_TYPE_BOOLEAN);
+  x_default_parameter (f, parms, Qcursor_type, Qbox,
+                       "cursorType", "CursorType", RES_TYPE_SYMBOL);
+  x_default_parameter (f, parms, Qscroll_bar_width, Qnil,
+                       "scrollBarWidth", "ScrollBarWidth",
+                       RES_TYPE_NUMBER);
+  x_default_parameter (f, parms, Qalpha, Qnil,
+                       "alpha", "Alpha", RES_TYPE_NUMBER);
 
   width = FRAME_COLS (f);
   height = FRAME_LINES (f);
@@ -1324,20 +1337,24 @@
 
   if (! f->output_data.ns->explicit_parent)
     {
-      tem = x_get_arg (dpyinfo, parms, Qvisibility, 0, 0, RES_TYPE_SYMBOL);
-      if (EQ (tem, Qunbound))
-       tem = Qt;
-      x_set_visibility (f, tem, Qnil);
-      if (EQ (tem, Qicon))
+      Lisp_Object visibility;
+
+      visibility = x_get_arg (dpyinfo, parms, Qvisibility, 0, 0,
+                              RES_TYPE_SYMBOL);
+      if (EQ (visibility, Qunbound))
+       visibility = Qt;
+
+      if (EQ (visibility, Qicon))
        x_iconify_frame (f);
-      else if (! NILP (tem))
+      else if (! NILP (visibility))
        {
          x_make_frame_visible (f);
-         f->async_visible = 1;
          [[FRAME_NS_VIEW (f) window] makeKeyWindow];
        }
       else
-         f->async_visible = 0;
+        {
+         /* Must have been Qnil.  */
+        }
     }
 
   if (FRAME_HAS_MINIBUF_P (f)
@@ -1352,6 +1369,9 @@
       f->param_alist = Fcons (XCAR (tem), f->param_alist);
 
   UNGCPRO;
+
+  /* Make sure windows on this frame appear in calls to next-window
+     and similar functions.  */
   Vwindow_list = Qnil;
 
   return unbind_to (count, frame);

=== modified file 'src/nsterm.m'
--- a/src/nsterm.m      2011-09-30 07:42:26 +0000
+++ b/src/nsterm.m      2011-11-05 12:25:01 +0000
@@ -164,7 +164,7 @@
 static EmacsScroller *last_mouse_scroll_bar = nil;
 static struct frame *ns_updating_frame;
 static NSView *focus_view = NULL;
-static int ns_window_num =0;
+static int ns_window_num = 0;
 static NSRect uRect;
 static BOOL gsaved = NO;
 BOOL ns_in_resize = NO;
@@ -1123,12 +1123,10 @@
   [[view window] miniaturize: NSApp];
 }
 
+/* Free X resources of frame F.  */
 
 void
-x_destroy_window (struct frame *f)
-/* --------------------------------------------------------------------------
-     External: Delete the window
-   -------------------------------------------------------------------------- 
*/
+x_free_frame_resources (struct frame *f)
 {
   NSView *view = FRAME_NS_VIEW (f);
   struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
@@ -1163,8 +1161,19 @@
   [[view window] close];
   [view release];
 
+  UNBLOCK_INPUT;
+}
+
+void
+x_destroy_window (struct frame *f)
+/* --------------------------------------------------------------------------
+     External: Delete the window
+   -------------------------------------------------------------------------- 
*/
+{
+  NSTRACE (x_destroy_window);
+  check_ns ();
+  x_free_frame_resources (f);
   ns_window_num--;
-  UNBLOCK_INPUT;
 }