[PATCH 6/6] xsettings: prefetch atoms

[Julien Danjou <julien@danjou.info>]

Signed-off-by: Julien Danjou <julien@danjou.info>
---
 src/ChangeLog   |    4 ++++
 src/xsettings.c |    8 --------
 src/xterm.c     |   25 ++++++++++++++++++++-----
 3 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/src/ChangeLog b/src/ChangeLog
index 3975d8b..2b7acb5 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,9 @@
 2010-11-10  Julien Danjou  <julien@danjou.info>
 
+	* xterm.c (x_term_init): Fetch XSETTINGS atoms.
+
+	* xsettings.c (init_xsettings): Use already fetch atoms.
+
 	* xterm.h (x_display_info): Add SM_CLIENT_ID atom.
 
 	* xsmfns.c (create_client_leader_window): Use SM_CLIENT_ID atom
diff --git a/src/xsettings.c b/src/xsettings.c
index 0d9c9ca..b3f3cb6 100644
--- a/src/xsettings.c
+++ b/src/xsettings.c
@@ -656,18 +656,10 @@ init_gconf (void)
 static void
 init_xsettings (struct x_display_info *dpyinfo)
 {
-  char sel[64];
   Display *dpy = dpyinfo->display;
 
   BLOCK_INPUT;
 
-  sprintf (sel, "_XSETTINGS_S%d", XScreenNumberOfScreen (dpyinfo->screen));
-  dpyinfo->Xatom_xsettings_sel = XInternAtom (dpy, sel, False);
-  dpyinfo->Xatom_xsettings_prop = XInternAtom (dpy,
-                                               "_XSETTINGS_SETTINGS",
-                                               False);
-  dpyinfo->Xatom_xsettings_mgr = XInternAtom (dpy, "MANAGER", False);
-
   /* Select events so we can detect client messages sent when selection
      owner changes.  */
   XSelectInput (dpy, dpyinfo->root_window, StructureNotifyMask);
diff --git a/src/xterm.c b/src/xterm.c
index e8a7d07..1900881 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -10249,22 +10249,37 @@ x_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
         "_NET_SUPPORTING_WM_CHECK", &dpyinfo->Xatom_net_supported,
         "_NET_WM_WINDOW_OPACITY", &dpyinfo->Xatom_net_wm_window_opacity,
         "_NET_ACTIVE_WINDOW", &dpyinfo->Xatom_net_active_window,
-        "SM_CLIENT_ID", &dpyinfo->Xatom_SM_CLIENT_ID
+        "SM_CLIENT_ID", &dpyinfo->Xatom_SM_CLIENT_ID,
+        "_XSETTINGS_SETTINGS", &dpyinfo->Xatom_xsettings_prop,
+        "MANAGER", &dpyinfo->Xatom_xsettings_mgr
       };
 
     int i;
-    const int atom_count = sizeof (atom_refs) / sizeof (atom_refs[0]);
-    Atom *atoms_return = xmalloc (sizeof (Atom) * atom_count);
-    char **atom_names = xmalloc (sizeof (char *) * atom_count);
+    const int atom_count = (sizeof (atom_refs) / sizeof (atom_refs[0]));
+    /* 1 for _XSETTINGS_SN  */
+    const int total_atom_count = 1 + atom_count;
+    Atom *atoms_return = xmalloc (sizeof (Atom) * total_atom_count);
+    char **atom_names = xmalloc (sizeof (char *) * total_atom_count);
+    char xsettings_atom_name[64];
 
     for (i = 0; i < atom_count; i++)
       atom_names[i] = (char *) atom_refs[i].name;
 
-    XInternAtoms (dpyinfo->display, atom_names, atom_count, False, atoms_return);
+    /* Build _XSETTINGS_SN atom name */
+    snprintf (xsettings_atom_name, sizeof (xsettings_atom_name),
+              "_XSETTINGS_S%d", XScreenNumberOfScreen (dpyinfo->screen));
+    atom_names[i] = xsettings_atom_name;
 
+    /* Fetch atoms */
+    XInternAtoms (dpyinfo->display, atom_names, total_atom_count, False, atoms_return);
+
+    /* Copy atoms back */
     for (i = 0; i < atom_count; i++)
       *atom_refs[i].atom = atoms_return[i];
 
+    /* Manual copy of last atoms */
+    dpyinfo->Xatom_xsettings_sel = atoms_return[i];
+
     xfree (atom_names);
     xfree (atoms_return);
   }
-- 
1.7.2.3