(FONTSET_OBJLIST): New macro.

(fontset_find_font): Update font-object list of the fontset.
(free_realized_fontset): New function.
(free_face_fontset): Call free_realized_fontset.
(Ffont_info): Call font_close_object only when enable_font_backend
is set.

1 files changed, 21 insertions, 1 deletions

diff --git a/src/fontset.c b/src/fontset.c
index 765fac0b9d..bd4553bc48 100644
--- a/src/fontset.c
+++ b/src/fontset.c
@@ -303,6 +303,7 @@ fontset_id_valid_p (id)
 /* Macros to access special values of (realized) FONTSET.  */
 #define FONTSET_BASE(fontset)		XCHAR_TABLE (fontset)->extras[2]
 #define FONTSET_FRAME(fontset)		XCHAR_TABLE (fontset)->extras[3]
+#define FONTSET_OBJLIST(fontset)	XCHAR_TABLE (fontset)->extras[4]
 #define FONTSET_NOFONT_FACE(fontset)	XCHAR_TABLE (fontset)->extras[5]
 #define FONTSET_REPERTORY(fontset)	XCHAR_TABLE (fontset)->extras[6]
 #define FONTSET_DEFAULT(fontset)	XCHAR_TABLE (fontset)->extras[7]
@@ -694,6 +695,8 @@ fontset_find_font (fontset, c, face, id, fallback)
 		  FONT_ENTITY_SET_NOT_LOADABLE (font_entity);
 		  continue;
 		}
+	      FONTSET_OBJLIST (fontset)
+		= Fcons (font_object, FONTSET_OBJLIST (fontset));
 	      ASET (elt, 3, font_object);
 	      if (has_char < 0)
 		{
@@ -912,6 +915,21 @@ fontset_ascii (id)
   return elt;
 }
 
+void
+free_realized_fontset (f, fontset)
+     FRAME_PTR f;
+     Lisp_Object fontset;
+{
+  int i;
+  Lisp_Object tail;
+
+  return;
+  for (tail = FONTSET_OBJLIST (fontset); CONSP (tail); tail = XCDR (tail))
+    {
+      xassert (FONT_OBJECT_P (XCAR (tail)));
+      font_close_object (f, XCAR (tail));
+    }
+}
 
 /* Free fontset of FACE defined on frame F.  Called from
    free_realized_face.  */
@@ -926,6 +944,7 @@ free_face_fontset (f, face)
   fontset = FONTSET_FROM_ID (face->fontset);
   xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset));
   xassert (f == XFRAME (FONTSET_FRAME (fontset)));
+  free_realized_fontset (f, fontset);
   ASET (Vfontset_table, face->fontset, Qnil);
   if (face->fontset < next_fontset_id)
     next_fontset_id = face->fontset;
@@ -936,6 +955,7 @@ free_face_fontset (f, face)
       fontset = AREF (Vfontset_table, id);
       xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset));
       xassert (f == XFRAME (FONTSET_FRAME (fontset)));
+      free_realized_fontset (f, fontset);
       ASET (Vfontset_table, id, Qnil);
       if (id < next_fontset_id)
 	next_fontset_id = face->fontset;
@@ -1966,7 +1986,7 @@ If the named font is not yet loaded, return nil.  */)
   XVECTOR (info)->contents[6] = make_number (fontp->default_ascent);
 
 #ifdef USE_FONT_BACKEND
-  if (! NILP (font_object))
+  if (enable_font_backend && ! NILP (font_object))
     font_close_object (f, font_object);
 #endif	/* USE_FONT_BACKEND */
   return info;