master ff64a85b2d: Finish up last change with more speedups

[Po Lu]

branch: master
commit ff64a85b2db11b57dda8be0fa0b749870d353590
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Finish up last change with more speedups
    
    * src/xterm.c (x_atom_refs):
    * src/xterm.h (struct x_display_info): Add some new atoms to be
    interned at connection setup.
---
 src/xterm.c | 14 ++++++++++++++
 src/xterm.h |  6 ++++++
 2 files changed, 20 insertions(+)

diff --git a/src/xterm.c b/src/xterm.c
index 18879669cd..43dc7c18b9 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -1052,6 +1052,20 @@ static const struct x_atom_ref x_atom_refs[] =
     /* Old OffiX (a.k.a. old KDE) drop protocol support.  */
     ATOM_REFS_INIT ("DndProtocol", Xatom_DndProtocol)
     ATOM_REFS_INIT ("_DND_PROTOCOL", Xatom_DND_PROTOCOL)
+    /* Here are some atoms that are not actually used from C, just
+       defined to make replying to selection requests fast.  */
+    ATOM_REFS_INIT ("text/plain;charset=utf-8", Xatom_text_plain_charset_utf_8)
+    ATOM_REFS_INIT ("LENGTH", Xatom_LENGTH)
+    ATOM_REFS_INIT ("FILE_NAME", Xatom_FILE_NAME)
+    ATOM_REFS_INIT ("CHARACTER_POSITION", Xatom_CHARACTER_POSITION)
+    ATOM_REFS_INIT ("LINE_NUMBER", Xatom_LINE_NUMBER)
+    ATOM_REFS_INIT ("COLUMN_NUMBER", Xatom_COLUMN_NUMBER)
+    ATOM_REFS_INIT ("OWNER_OS", Xatom_OWNER_OS)
+    ATOM_REFS_INIT ("HOST_NAME", Xatom_HOST_NAME)
+    ATOM_REFS_INIT ("USER", Xatom_USER)
+    ATOM_REFS_INIT ("CLASS", Xatom_CLASS)
+    ATOM_REFS_INIT ("NAME", Xatom_NAME)
+    ATOM_REFS_INIT ("SAVE_TARGETS", Xatom_SAVE_TARGETS)
   };
 
 enum
diff --git a/src/xterm.h b/src/xterm.h
index 6420457a88..86763dc6e0 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -537,6 +537,12 @@ struct x_display_info
      KDE" protocol in x-dnd.el). */
   Atom Xatom_DndProtocol, Xatom_DND_PROTOCOL;
 
+  /* Atoms to make x_intern_cached_atom fast.  */
+  Atom Xatom_text_plain_charset_utf_8, Xatom_LENGTH, Xatom_FILE_NAME,
+    Xatom_CHARACTER_POSITION, Xatom_LINE_NUMBER, Xatom_COLUMN_NUMBER,
+    Xatom_OWNER_OS, Xatom_HOST_NAME, Xatom_USER, Xatom_CLASS,
+    Xatom_NAME, Xatom_SAVE_TARGETS;
+
   /* The frame (if any) which has the X window that has keyboard focus.
      Zero if none.  This is examined by Ffocus_frame in xfns.c.  Note
      that a mere EnterNotify event can set this; if you need to know the