This introduces a thread-state object and moves various C globals

there.  It also introduces #defines for these globals to avoid a
monster patch.

The #defines mean that this patch also has to rename a few fields
whose names clash with the defines.

There is currently just a single "thread"; so this patch does not
impact Emacs behavior in any significant way.

1 files changed, 26 insertions, 0 deletions

diff --git a/src/thread.c b/src/thread.c
new file mode 100644
index 00000000000..0bd97b4fd8e
--- /dev/null
+++ b/src/thread.c
@@ -0,0 +1,26 @@
+/* Threading code.
+   Copyright (C) 2012 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+
+
+#include <config.h>
+#include <setjmp.h>
+#include "lisp.h"
+
+struct thread_state the_only_thread;
+
+struct thread_state *current_thread = &the_only_thread;